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Merge branch 'master' into js/fmt-patch 

* master: (109 commits)
  t1300-repo-config: two new config parsing tests.
  Another config file parsing fix.
  update-index: plug memory leak from prefix_path()
  checkout-index: plug memory leak from prefix_path()
  update-index --unresolve: work from a subdirectory.
  pack-object: squelch eye-candy on non-tty
  core.prefersymlinkrefs: use symlinks for .git/HEAD
  repo-config: trim white-space before comment
  Fix for config file section parsing.
  Clarify git-cherry documentation.
  Update git-unpack-objects documentation.
  Fix up docs where "--" isn't displayed correctly.
  Several trivial documentation touch ups.
  git-svn 1.0.0
  git-svn: documentation updates
  delta: stricter constness
  Makefile: do not link rev-list any specially.
  builtin-push: --all and --tags _are_ explicit refspecs
  builtin-log/whatchanged/show: make them official.
  show-branch: omit uninteresting merges.
  ...
This commit is contained in:
Junio C Hamano 2006-05-06 14:42:08 -07:00
parent 8ac80a5701 bd886fd3ea
commit c66b6c067e
90 changed files with 6077 additions and 3202 deletions
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2
Documentation/Makefile
View File

@ -79,7 +79,7 @@ clean:
asciidoc -b xhtml11 -d manpage -f asciidoc.conf $<
%.1 %.7 : %.xml
xmlto man $<
xmlto -m callouts.xsl man $<
%.xml : %.txt
asciidoc -b docbook -d manpage -f asciidoc.conf $<

16
Documentation/callouts.xsl Normal file
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@ -0,0 +1,16 @@
<!-- callout.xsl: converts asciidoc callouts to man page format -->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:template match="co">
<xsl:value-of select="concat('\fB(',substring-after(@id,'-'),')\fR')"/>
</xsl:template>
<xsl:template match="calloutlist">
<xsl:text>.sp&#10;</xsl:text>
<xsl:apply-templates/>
<xsl:text>&#10;</xsl:text>
</xsl:template>
<xsl:template match="callout">
<xsl:value-of select="concat('\fB',substring-after(@arearefs,'-'),'. \fR')"/>
<xsl:apply-templates/>
<xsl:text>.br&#10;</xsl:text>
</xsl:template>
</xsl:stylesheet>

183
Documentation/config.txt Normal file
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@ -0,0 +1,183 @@
CONFIGURATION FILE
------------------
The git configuration file contains a number of variables that affect
the git commands behaviour. They can be used by both the git plumbing
and the porcelains. The variables are divided to sections, where
in the fully qualified variable name the variable itself is the last
dot-separated segment and the section name is everything before the last
dot. The variable names are case-insensitive and only alphanumeric
characters are allowed. Some variables may appear multiple times.
The syntax is fairly flexible and permissive; whitespaces are mostly
ignored. The '#' and ';' characters begin commends to the end of line,
blank lines are ignored, lines containing strings enclosed in square
brackets start sections and all the other lines are recognized
as setting variables, in the form 'name = value'. If there is no equal
sign on the line, the entire line is taken as 'name' and the variable
is recognized as boolean "true". String values may be entirely or partially
enclosed in double quotes; some variables may require special value format.
Example
~~~~~~~
# Core variables
[core]
; Don't trust file modes
filemode = false
# Our diff algorithm
[diff]
external = "/usr/local/bin/gnu-diff -u"
renames = true
Variables
~~~~~~~~~
Note that this list is non-comprehensive and not necessarily complete.
For command-specific variables, you will find more detailed description
in the appropriate manual page. You will find description of non-core
porcelain configuration variables in the respective porcelain documentation.
core.fileMode::
If false, the executable bit differences between the index and
the working copy are ignored; useful on broken filesystems like FAT.
See gitlink:git-update-index[1]. True by default.
core.gitProxy::
A "proxy command" to execute (as 'command host port') instead
of establishing direct connection to the remote server when
using the git protocol for fetching. If the variable value is
in the "COMMAND for DOMAIN" format, the command is applied only
on hostnames ending with the specified domain string. This variable
may be set multiple times and is matched in the given order;
the first match wins.
Can be overriden by the 'GIT_PROXY_COMMAND' environment variable
(which always applies universally, without the special "for"
handling).
core.ignoreStat::
The working copy files are assumed to stay unchanged until you
mark them otherwise manually - Git will not detect the file changes
by lstat() calls. This is useful on systems where those are very
slow, such as Microsoft Windows. See gitlink:git-update-index[1].
False by default.
core.preferSymlinkRefs::
Instead of the default "symref" format for HEAD
and other symbolic reference files, use symbolic links.
This is sometimes needed to work with old scripts that
expect HEAD to be a symbolic link.
core.repositoryFormatVersion::
Internal variable identifying the repository format and layout
version.
core.sharedRepository::
If true, the repository is made shareable between several users
in a group (making sure all the files and objects are group-writable).
See gitlink:git-init-db[1]. False by default.
core.warnAmbiguousRefs::
If true, git will warn you if the ref name you passed it is ambiguous
and might match multiple refs in the .git/refs/ tree. True by default.
apply.whitespace::
Tells `git-apply` how to handle whitespaces, in the same way
as the '--whitespace' option. See gitlink:git-apply[1].
diff.renameLimit::
The number of files to consider when performing the copy/rename
detection; equivalent to the git diff option '-l'.
format.headers::
Additional email headers to include in a patch to be submitted
by mail. See gitlink:git-format-patch[1].
gitcvs.enabled::
Whether the cvs pserver interface is enabled for this repository.
See gitlink:git-cvsserver[1].
gitcvs.logfile::
Path to a log file where the cvs pserver interface well... logs
various stuff. See gitlink:git-cvsserver[1].
http.sslVerify::
Whether to verify the SSL certificate when fetching or pushing
over HTTPS. Can be overriden by the 'GIT_SSL_NO_VERIFY' environment
variable.
http.sslCert::
File containing the SSL certificate when fetching or pushing
over HTTPS. Can be overriden by the 'GIT_SSL_CERT' environment
variable.
http.sslKey::
File containing the SSL private key when fetching or pushing
over HTTPS. Can be overriden by the 'GIT_SSL_KEY' environment
variable.
http.sslCAInfo::
File containing the certificates to verify the peer with when
fetching or pushing over HTTPS. Can be overriden by the
'GIT_SSL_CAINFO' environment variable.
http.sslCAPath::
Path containing files with the CA certificates to verify the peer
with when fetching or pushing over HTTPS. Can be overriden
by the 'GIT_SSL_CAPATH' environment variable.
http.maxRequests::
How many HTTP requests to launch in parallel. Can be overriden
by the 'GIT_HTTP_MAX_REQUESTS' environment variable. Default is 5.
http.lowSpeedLimit, http.lowSpeedTime::
If the HTTP transfer speed is less than 'http.lowSpeedLimit'
for longer than 'http.lowSpeedTime' seconds, the transfer is aborted.
Can be overriden by the 'GIT_HTTP_LOW_SPEED_LIMIT' and
'GIT_HTTP_LOW_SPEED_TIME' environment variables.
i18n.commitEncoding::
Character encoding the commit messages are stored in; git itself
does not care per se, but this information is necessary e.g. when
importing commits from emails or in the gitk graphical history
browser (and possibly at other places in the future or in other
porcelains). See e.g. gitlink:git-mailinfo[1]. Defaults to 'utf-8'.
merge.summary::
Whether to include summaries of merged commits in newly created
merge commit messages. False by default.
pull.octopus::
The default merge strategy to use when pulling multiple branches
at once.
pull.twohead::
The default merge strategy to use when pulling a single branch.
show.difftree::
The default gitlink:git-diff-tree[1] arguments to be used
for gitlink:git-show[1].
showbranch.default::
The default set of branches for gitlink:git-show-branch[1].
See gitlink:git-show-branch[1].
user.email::
Your email address to be recorded in any newly created commits.
Can be overriden by the 'GIT_AUTHOR_EMAIL' and 'GIT_COMMITTER_EMAIL'
environment variables. See gitlink:git-commit-tree[1].
user.name::
Your full name to be recorded in any newly created commits.
Can be overriden by the 'GIT_AUTHOR_NAME' and 'GIT_COMMITTER_NAME'
environment variables. See gitlink:git-commit-tree[1].
whatchanged.difftree::
The default gitlink:git-diff-tree[1] arguments to be used
for gitlink:git-whatchanged[1].
imap::
The configuration variables in the 'imap' section are described
in gitlink:git-imap-send[1].

45
Documentation/everyday.txt
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@ -61,7 +61,8 @@ $ git prune
$ git count-objects <2>
$ git repack <3>
$ git prune <4>
------------
+
<1> running without "--full" is usually cheap and assures the
repository health reasonably well.
<2> check how many loose objects there are and how much
@ -69,17 +70,16 @@ diskspace is wasted by not repacking.
<3> without "-a" repacks incrementally. repacking every 4-5MB
of loose objects accumulation may be a good rule of thumb.
<4> after repack, prune removes the duplicate loose objects.
------------
Repack a small project into single pack.::
+
------------
$ git repack -a -d <1>
$ git prune
------------
+
<1> pack all the objects reachable from the refs into one pack
and remove unneeded other packs
------------
Individual Developer (Standalone)[[Individual Developer (Standalone)]]
@ -129,10 +129,10 @@ $ git-init-db
$ git add . <1>
$ git commit -m 'import of frotz source tree.'
$ git tag v2.43 <2>
------------
+
<1> add everything under the current directory.
<2> make a lightweight, unannotated tag.
------------
Create a topic branch and develop.::
+
@ -153,7 +153,8 @@ $ git checkout master <9>
$ git pull . alsa-audio <10>
$ git log --since='3 days ago' <11>
$ git log v2.43.. curses/ <12>
------------
+
<1> create a new topic branch.
<2> revert your botched changes in "curses/ux_audio_oss.c".
<3> you need to tell git if you added a new file; removal and
@ -170,7 +171,6 @@ you originally wrote.
combined and include --max-count=10 (show 10 commits), --until='2005-12-10'.
<12> view only the changes that touch what's in curses/
directory, since v2.43 tag.
------------
Individual Developer (Participant)[[Individual Developer (Participant)]]
@ -208,7 +208,8 @@ $ git pull git://git.kernel.org/pub/.../jgarzik/libata-dev.git ALL <5>
$ git reset --hard ORIG_HEAD <6>
$ git prune <7>
$ git fetch --tags <8>
------------
+
<1> repeat as needed.
<2> extract patches from your branch for e-mail submission.
<3> "pull" fetches from "origin" by default and merges into the
@ -221,7 +222,6 @@ area we are interested in.
<7> garbage collect leftover objects from reverted pull.
<8> from time to time, obtain official tags from the "origin"
and store them under .git/refs/tags/.
------------
Push into another repository.::
@ -239,7 +239,8 @@ satellite$ git push origin <4>
mothership$ cd frotz
mothership$ git checkout master
mothership$ git pull . satellite <5>
------------
+
<1> mothership machine has a frotz repository under your home
directory; clone from it to start a repository on the satellite
machine.
@ -252,7 +253,6 @@ to local "origin" branch.
mothership machine. You could use this as a back-up method.
<5> on mothership machine, merge the work done on the satellite
machine into the master branch.
------------
Branch off of a specific tag.::
+
@ -262,12 +262,12 @@ $ edit/compile/test; git commit -a
$ git checkout master
$ git format-patch -k -m --stdout v2.6.14..private2.6.14 |
git am -3 -k <2>
------------
+
<1> create a private branch based on a well known (but somewhat behind)
tag.
<2> forward port all changes in private2.6.14 branch to master branch
without a formal "merging".
------------
Integrator[[Integrator]]
@ -317,7 +317,8 @@ $ git tag -s -m 'GIT 0.99.9x' v0.99.9x <10>
$ git fetch ko && git show-branch master maint 'tags/ko-*' <11>
$ git push ko <12>
$ git push ko v0.99.9x <13>
------------
+
<1> see what I was in the middle of doing, if any.
<2> see what topic branches I have and think about how ready
they are.
@ -346,7 +347,6 @@ In the output from "git show-branch", "master" should have
everything "ko-master" has.
<12> push out the bleeding edge.
<13> push the tag out, too.
------------
Repository Administration[[Repository Administration]]
@ -367,7 +367,6 @@ example of managing a shared central repository.
Examples
~~~~~~~~
Run git-daemon to serve /pub/scm from inetd.::
+
------------
@ -388,13 +387,13 @@ cindy:x:1002:1002::/home/cindy:/usr/bin/git-shell
david:x:1003:1003::/home/david:/usr/bin/git-shell
$ grep git /etc/shells <2>
/usr/bin/git-shell
------------
+
<1> log-in shell is set to /usr/bin/git-shell, which does not
allow anything but "git push" and "git pull". The users should
get an ssh access to the machine.
<2> in many distributions /etc/shells needs to list what is used
as the login shell.
------------
CVS-style shared repository.::
+
@ -419,7 +418,8 @@ $ cat info/allowed-users <4>
refs/heads/master alice\|cindy
refs/heads/doc-update bob
refs/tags/v[0-9]* david
------------
+
<1> place the developers into the same git group.
<2> and make the shared repository writable by the group.
<3> use update-hook example by Carl from Documentation/howto/
@ -427,7 +427,6 @@ for branch policy control.
<4> alice and cindy can push into master, only bob can push into doc-update.
david is the release manager and is the only person who can
create and push version tags.
------------
HTTP server to support dumb protocol transfer.::
+
@ -435,7 +434,7 @@ HTTP server to support dumb protocol transfer.::
dev$ git update-server-info <1>
dev$ ftp user@isp.example.com <2>
ftp> cp -r .git /home/user/myproject.git
------------
+
<1> make sure your info/refs and objects/info/packs are up-to-date
<2> upload to public HTTP server hosted by your ISP.
------------

2
Documentation/git-add.txt
View File

@ -26,7 +26,7 @@ OPTIONS
-v::
Be verbose.
--::
\--::
This option can be used to separate command-line options from
the list of files, (useful when filenames might be mistaken
for command-line options).

57
Documentation/git-branch.txt
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@ -3,22 +3,27 @@ git-branch(1)
NAME
----
git-branch - Create a new branch, or remove an old one
git-branch - List, create, or delete branches.
SYNOPSIS
--------
[verse]
'git-branch' [[-f] <branchname> [<start-point>]]
'git-branch' (-d | -D) <branchname>
'git-branch' [-r]
'git-branch' [-f] <branchname> [<start-point>]
'git-branch' (-d | -D) <branchname>...
DESCRIPTION
-----------
If no argument is provided, show available branches and mark current
branch with star. Otherwise, create a new branch of name <branchname>.
If a starting point is also specified, that will be where the branch is
created, otherwise it will be created at the current HEAD.
With no arguments given (or just `-r`) a list of available branches
will be shown, the current branch will be highlighted with an asterisk.
With a `-d` or `-D` option, `<branchname>` will be deleted.
In its second form, a new branch named <branchname> will be created.
It will start out with a head equal to the one given as <start-point>.
If no <start-point> is given, the branch will be created with a head
equal to that of the currently checked out branch.
With a `-d` or `-D` option, `<branchname>` will be deleted. You may
specify more than one branch for deletion.
OPTIONS
@ -30,40 +35,56 @@ OPTIONS
Delete a branch irrespective of its index status.
-f::
Force a reset of <branchname> to <start-point> (or current head).
Force the creation of a new branch even if it means deleting
a branch that already exists with the same name.
-r::
List only the "remote" branches.
<branchname>::
The name of the branch to create or delete.
<start-point>::
Where to create the branch; defaults to HEAD. This
option has no meaning with -d and -D.
The new branch will be created with a HEAD equal to this. It may
be given as a branch name, a commit-id, or a tag. If this option
is omitted, the current branch is assumed.
Examples
~~~~~~~~
--------
Start development off of a known tag::
+
------------
$ git clone git://git.kernel.org/pub/scm/.../linux-2.6 my2.6
$ cd my2.6
$ git branch my2.6.14 v2.6.14 <1>
$ git branch my2.6.14 v2.6.14 <1>
$ git checkout my2.6.14
<1> These two steps are the same as "checkout -b my2.6.14 v2.6.14".
------------
+
<1> This step and the next one could be combined into a single step with
"checkout -b my2.6.14 v2.6.14".
Delete unneeded branch::
+
------------
$ git clone git://git.kernel.org/.../git.git my.git
$ cd my.git
$ git branch -D todo <1>
$ git branch -D todo <1>
------------
+
<1> delete todo branch even if the "master" branch does not have all
commits from todo branch.
------------
Notes
-----
If you are creating a branch that you want to immediately checkout, it's
easier to use the git checkout command with its `-b` option to create
a branch and check it out with a single command.
Author
------

2
Documentation/git-checkout-index.txt
View File

@ -63,7 +63,7 @@ OPTIONS
Only meaningful with `--stdin`; paths are separated with
NUL character instead of LF.
--::
\--::
Do not interpret any more arguments as options.
The order of the flags used to matter, but not anymore.

20
Documentation/git-checkout.txt
View File

@ -66,19 +66,19 @@ the `Makefile` to two revisions back, deletes hello.c by
mistake, and gets it back from the index.
+
------------
$ git checkout master <1>
$ git checkout master~2 Makefile <2>
$ git checkout master <1>
$ git checkout master~2 Makefile <2>
$ rm -f hello.c
$ git checkout hello.c <3>
<1> switch branch
<2> take out a file out of other commit
<3> or "git checkout -- hello.c", as in the next example.
$ git checkout hello.c <3>
------------
+
If you have an unfortunate branch that is named `hello.c`, the
last step above would be confused as an instruction to switch to
that branch. You should instead write:
<1> switch branch
<2> take out a file out of other commit
<3> restore hello.c from HEAD of current branch
+
If you have an unfortunate branch that is named `hello.c`, this
step would be confused as an instruction to switch to that branch.
You should instead write:
+
------------
$ git checkout -- hello.c

19
Documentation/git-cherry.txt
View File

@ -11,11 +11,20 @@ SYNOPSIS
DESCRIPTION
-----------
Each commit between the fork-point and <head> is examined, and compared against
the change each commit between the fork-point and <upstream> introduces.
Commits already included in upstream are prefixed with '-' (meaning "drop from
my local pull"), while commits missing from upstream are prefixed with '+'
(meaning "add to the updated upstream").
The changeset (or "diff") of each commit between the fork-point and <head>
is compared against each commit between the fork-point and <upstream>.
Every commit with a changeset that doesn't exist in the other branch
has its id (sha1) reported, prefixed by a symbol. Those existing only
in the <upstream> branch are prefixed with a minus (-) sign, and those
that only exist in the <head> branch are prefixed with a plus (+) symbol.
Because git-cherry compares the changeset rather than the commit id
(sha1), you can use git-cherry to find out if a commit you made locally
has been applied <upstream> under a different commit id. For example,
this will happen if you're feeding patches <upstream> via email rather
than pushing or pulling commits directly.
OPTIONS
-------

2
Documentation/git-clone.txt
View File

@ -101,7 +101,7 @@ OPTIONS
is not allowed.
Examples
~~~~~~~~
--------
Clone from upstream::
+

2
Documentation/git-commit.txt
View File

@ -106,7 +106,7 @@ but can be used to amend a merge commit.
index and the latest commit does not match on the
specified paths to avoid confusion.
--::
\--::
Do not interpret any more arguments as options.
<file>...::

12
Documentation/git-count-objects.txt
View File

@ -7,13 +7,23 @@ git-count-objects - Reports on unpacked objects
SYNOPSIS
--------
'git-count-objects'
'git-count-objects' [-v]
DESCRIPTION
-----------
This counts the number of unpacked object files and disk space consumed by
them, to help you decide when it is a good time to repack.
OPTIONS
-------
-v::
In addition to the number of loose objects and disk
space consumed, it reports the number of in-pack
objects, and number of objects that can be removed by
running `git-prune-packed`.
Author
------
Written by Junio C Hamano <junkio@cox.net>

2
Documentation/git-diff-tree.txt
View File

@ -92,7 +92,7 @@ separated with a single space are given.
Furthermore, it lists only files which were modified
from all parents.
-cc::
--cc::
This flag changes the way a merge commit patch is displayed,
in a similar way to the '-c' option. It implies the '-c'
and '-p' options and further compresses the patch output

38
Documentation/git-diff.txt
View File

@ -46,40 +46,41 @@ EXAMPLES
Various ways to check your working tree::
+
------------
$ git diff <1>
$ git diff --cached <2>
$ git diff HEAD <3>
$ git diff <1>
$ git diff --cached <2>
$ git diff HEAD <3>
------------
+
<1> changes in the working tree since your last git-update-index.
<2> changes between the index and your last commit; what you
would be committing if you run "git commit" without "-a" option.
<3> changes in the working tree since your last commit; what you
would be committing if you run "git commit -a"
------------
Comparing with arbitrary commits::
+
------------
$ git diff test <1>
$ git diff HEAD -- ./test <2>
$ git diff HEAD^ HEAD <3>
$ git diff test <1>
$ git diff HEAD -- ./test <2>
$ git diff HEAD^ HEAD <3>
------------
+
<1> instead of using the tip of the current branch, compare with the
tip of "test" branch.
<2> instead of comparing with the tip of "test" branch, compare with
the tip of the current branch, but limit the comparison to the
file "test".
<3> compare the version before the last commit and the last commit.
------------
Limiting the diff output::
+
------------
$ git diff --diff-filter=MRC <1>
$ git diff --name-status -r <2>
$ git diff arch/i386 include/asm-i386 <3>
$ git diff --diff-filter=MRC <1>
$ git diff --name-status -r <2>
$ git diff arch/i386 include/asm-i386 <3>
------------
+
<1> show only modification, rename and copy, but not addition
nor deletion.
<2> show only names and the nature of change, but not actual
@ -88,18 +89,17 @@ which in turn also disables recursive behaviour, so without -r
you would only see the directory name if there is a change in a
file in a subdirectory.
<3> limit diff output to named subtrees.
------------
Munging the diff output::
+
------------
$ git diff --find-copies-harder -B -C <1>
$ git diff -R <2>
$ git diff --find-copies-harder -B -C <1>
$ git diff -R <2>
------------
+
<1> spend extra cycles to find renames, copies and complete
rewrites (very expensive).
<2> output diff in reverse.
------------
Author

4
Documentation/git-imap-send.txt
View File

@ -29,6 +29,7 @@ CONFIGURATION
git-imap-send requires the following values in the repository
configuration file (shown with examples):
..........................
[imap]
Folder = "INBOX.Drafts"
@ -38,8 +39,9 @@ configuration file (shown with examples):
[imap]
Host = imap.server.com
User = bob
Password = pwd
Pass = pwd
Port = 143
..........................
BUGS

8
Documentation/git-init-db.txt
View File

@ -60,12 +60,12 @@ Start a new git repository for an existing code base::
+
----------------
$ cd /path/to/my/codebase
$ git-init-db <1>
$ git-add . <2>
$ git-init-db <1>
$ git-add . <2>
----------------
+
<1> prepare /path/to/my/codebase/.git directory
<2> add all existing file to the index
----------------
Author

9
Documentation/git-log.txt
View File

@ -14,13 +14,12 @@ DESCRIPTION
-----------
Shows the commit logs.
The command takes options applicable to the gitlink::git-rev-list[1]
The command takes options applicable to the gitlink:git-rev-list[1]
command to control what is shown and how, and options applicable to
the gitlink::git-diff-tree[1] commands to control how the change
the gitlink:git-diff-tree[1] commands to control how the change
each commit introduces are shown.
This manual page describes only the most frequently used
options.
This manual page describes only the most frequently used options.
OPTIONS
@ -52,7 +51,7 @@ git log v2.6.12.. include/scsi drivers/scsi::
Show all commits since version 'v2.6.12' that changed any file
in the include/scsi or drivers/scsi subdirectories
git log --since="2 weeks ago" -- gitk::
git log --since="2 weeks ago" \-- gitk::
Show the changes during the last two weeks to the file 'gitk'.
The "--" is necessary to avoid confusion with the *branch* named

2
Documentation/git-ls-files.txt
View File

@ -106,7 +106,7 @@ OPTIONS
lines, show only handful hexdigits prefix.
Non default number of digits can be specified with --abbrev=<n>.
--::
\--::
Do not interpret any more arguments as options.
<file>::

4
Documentation/git-merge-index.txt
View File

@ -8,7 +8,7 @@ git-merge-index - Runs a merge for files needing merging
SYNOPSIS
--------
'git-merge-index' [-o] [-q] <merge-program> (-a | -- | <file>\*)
'git-merge-index' [-o] [-q] <merge-program> (-a | \-- | <file>\*)
DESCRIPTION
-----------
@ -19,7 +19,7 @@ files are passed as arguments 5, 6 and 7.
OPTIONS
-------
--::
\--::
Do not interpret any more arguments as options.
-a::

1
Documentation/git-name-rev.txt
View File

@ -41,6 +41,7 @@ Enter git-name-rev:
------------
% git name-rev 33db5f4d9027a10e477ccf054b2c1ab94f74c85a
33db5f4d9027a10e477ccf054b2c1ab94f74c85a tags/v0.99^0~940
------------
Now you are wiser, because you know that it happened 940 revisions before v0.99.

2
Documentation/git-prune.txt
View File

@ -28,7 +28,7 @@ OPTIONS
Do not remove anything; just report what it would
remove.
--::
\--::
Do not interpret any more arguments as options.
<head>...::

76
Documentation/git-rebase.txt
View File

@ -3,38 +3,54 @@ git-rebase(1)
NAME
----
git-rebase - Rebase local commits to new upstream head
git-rebase - Rebase local commits to a new head
SYNOPSIS
--------
'git-rebase' [--onto <newbase>] <upstream> [<branch>]
'git-rebase' --continue
'git-rebase' --abort
DESCRIPTION
-----------
git-rebase applies to <upstream> (or optionally to <newbase>) commits
from <branch> that do not appear in <upstream>. When <branch> is not
specified it defaults to the current branch (HEAD).
git-rebase replaces <branch> with a new branch of the same name. When
the --onto option is provided the new branch starts out with a HEAD equal
to <newbase>, otherwise it is equal to <upstream>. It then attempts to
create a new commit for each commit from the original <branch> that does
not exist in the <upstream> branch.
When git-rebase is complete, <branch> will be updated to point to the
newly created line of commit objects, so the previous line will not be
accessible unless there are other references to it already.
It is possible that a merge failure will prevent this process from being
completely automatic. You will have to resolve any such merge failure
and run `git rebase --continue`. If you can not resolve the merge
failure, running `git rebase --abort` will restore the original <branch>
and remove the working files found in the .dotest directory.
Note that if <branch> is not specified on the command line, the currently
checked out branch is used.
Assume the following history exists and the current branch is "topic":
------------
A---B---C topic
/
D---E---F---G master
------------
From this point, the result of either of the following commands:
git-rebase master
git-rebase master topic
would be:
------------
A'--B'--C' topic
/
D---E---F---G master
------------
While, starting from the same point, the result of either of the following
commands:
@ -44,21 +60,33 @@ commands:
would be:
------------
A'--B'--C' topic
/
D---E---F---G master
------------
In case of conflict, git-rebase will stop at the first problematic commit
and leave conflict markers in the tree. After resolving the conflict manually
and updating the index with the desired resolution, you can continue the
rebasing process with
and leave conflict markers in the tree. You can use git diff to locate
the markers (<<<<<<) and make edits to resolve the conflict. For each
file you edit, you need to tell git that the conflict has been resolved,
typically this would be done with
git update-index <filename>
After resolving the conflict manually and updating the index with the
desired resolution, you can continue the rebasing process with
git rebase --continue
git am --resolved --3way
Alternatively, you can undo the git-rebase with
git reset --hard ORIG_HEAD
rm -r .dotest
git rebase --abort
OPTIONS
-------
@ -73,6 +101,28 @@ OPTIONS
<branch>::
Working branch; defaults to HEAD.
--continue::
Restart the rebasing process after having resolved a merge conflict.
--abort::
Restore the original branch and abort the rebase operation.
NOTES
-----
When you rebase a branch, you are changing its history in a way that
will cause problems for anyone who already has a copy of the branch
in their repository and tries to pull updates from you. You should
understand the implications of using 'git rebase' on a repository that
you share.
When the git rebase command is run, it will first execute a "pre-rebase"
hook if one exists. You can use this hook to do sanity checks and
reject the rebase if it isn't appropriate. Please see the template
pre-rebase hook script for an example.
You must be in the top directory of your project to start (or continue)
a rebase. Upon completion, <branch> will be the current branch.
Author
------
Written by Junio C Hamano <junkio@cox.net>

1
Documentation/git-repack.txt
View File

@ -38,6 +38,7 @@ OPTIONS
-d::
After packing, if the newly created packs make some
existing packs redundant, remove the redundant packs.
Also runs gitlink:git-prune-packed[1].
-l::
Pass the `--local` option to `git pack-objects`, see

44
Documentation/git-repo-config.txt
View File

@ -15,6 +15,7 @@ SYNOPSIS
'git-repo-config' [type] --get-all name [value_regex]
'git-repo-config' [type] --unset name [value_regex]
'git-repo-config' [type] --unset-all name [value_regex]
'git-repo-config' -l | --list
DESCRIPTION
-----------
@ -33,10 +34,10 @@ convert the value to the canonical form (simple decimal number for int,
a "true" or "false" string for bool). If no type specifier is passed,
no checks or transformations are performed on the value.
This command will fail if
This command will fail if:
. .git/config is invalid,
. .git/config can not be written to,
. The .git/config file is invalid,
. Can not write to .git/config,
. no section was provided,
. the section or key is invalid,
. you try to unset an option which does not exist, or
@ -48,7 +49,7 @@ OPTIONS
--replace-all::
Default behaviour is to replace at most one line. This replaces
all lines matching the key (and optionally the value_regex)
all lines matching the key (and optionally the value_regex).
--get::
Get the value for a given key (optionally filtered by a regex
@ -58,12 +59,18 @@ OPTIONS
Like get, but does not fail if the number of values for the key
is not exactly one.
--get-regexp::
Like --get-all, but interprets the name as a regular expression.
--unset::
Remove the line matching the key from .git/config.
--unset-all::
Remove all matching lines from .git/config.
-l, --list::
List all variables set in .git/config.
EXAMPLE
-------
@ -87,11 +94,11 @@ Given a .git/config like this:
renames = true
; Proxy settings
[proxy]
command="ssh" for "ssh://kernel.org/"
command="proxy-command" for kernel.org
command="myprotocol-command" for "my://"
command=default-proxy ; for all the rest
[core]
gitproxy="ssh" for "ssh://kernel.org/"
gitproxy="proxy-command" for kernel.org
gitproxy="myprotocol-command" for "my://"
gitproxy=default-proxy ; for all the rest
you can set the filemode to true with
@ -104,7 +111,7 @@ to what URL they apply. Here is how to change the entry for kernel.org
to "ssh".
------------
% git repo-config proxy.command '"ssh" for kernel.org' 'for kernel.org$'
% git repo-config core.gitproxy '"ssh" for kernel.org' 'for kernel.org$'
------------
This makes sure that only the key/value pair for kernel.org is replaced.
@ -115,7 +122,7 @@ To delete the entry for renames, do
% git repo-config --unset diff.renames
------------
If you want to delete an entry for a multivar (like proxy.command above),
If you want to delete an entry for a multivar (like core.gitproxy above),
you have to provide a regex matching the value of exactly one line.
To query the value for a given key, do
@ -133,27 +140,27 @@ or
or, to query a multivar:
------------
% git repo-config --get proxy.command "for kernel.org$"
% git repo-config --get core.gitproxy "for kernel.org$"
------------
If you want to know all the values for a multivar, do:
------------
% git repo-config --get-all proxy.command
% git repo-config --get-all core.gitproxy
------------
If you like to live dangerous, you can replace *all* proxy.commands by a
If you like to live dangerous, you can replace *all* core.gitproxy by a
new one with
------------
% git repo-config --replace-all proxy.command ssh
% git repo-config --replace-all core.gitproxy ssh
------------
However, if you really only want to replace the line for the default proxy,
i.e. the one without a "for ..." postfix, do something like this:
------------
% git repo-config proxy.command ssh '! for '
% git repo-config core.gitproxy ssh '! for '
------------
To actually match only values with an exclamation mark, you have to
@ -163,13 +170,16 @@ To actually match only values with an exclamation mark, you have to
------------
include::config.txt[]
Author
------
Written by Johannes Schindelin <Johannes.Schindelin@gmx.de>
Documentation
--------------
Documentation by Johannes Schindelin.
Documentation by Johannes Schindelin, Petr Baudis and the git-list <git@vger.kernel.org>.
GIT
---

74
Documentation/git-reset.txt
View File

@ -43,16 +43,17 @@ OPTIONS
Commit to make the current HEAD.
Examples
~~~~~~~~
--------
Undo a commit and redo::
+
------------
$ git commit ...
$ git reset --soft HEAD^ <1>
$ edit <2>
$ git commit -a -c ORIG_HEAD <3>
$ git reset --soft HEAD^ <1>
$ edit <2>
$ git commit -a -c ORIG_HEAD <3>
------------
+
<1> This is most often done when you remembered what you
just committed is incomplete, or you misspelled your commit
message, or both. Leaves working tree as it was before "reset".
@ -60,43 +61,43 @@ message, or both. Leaves working tree as it was before "reset".
<3> "reset" copies the old head to .git/ORIG_HEAD; redo the
commit by starting with its log message. If you do not need to
edit the message further, you can give -C option instead.
------------
Undo commits permanently::
+
------------
$ git commit ...
$ git reset --hard HEAD~3 <1>
$ git reset --hard HEAD~3 <1>
------------
+
<1> The last three commits (HEAD, HEAD^, and HEAD~2) were bad
and you do not want to ever see them again. Do *not* do this if
you have already given these commits to somebody else.
------------
Undo a commit, making it a topic branch::
+
------------
$ git branch topic/wip <1>
$ git reset --hard HEAD~3 <2>
$ git checkout topic/wip <3>
$ git branch topic/wip <1>
$ git reset --hard HEAD~3 <2>
$ git checkout topic/wip <3>
------------
+
<1> You have made some commits, but realize they were premature
to be in the "master" branch. You want to continue polishing
them in a topic branch, so create "topic/wip" branch off of the
current HEAD.
<2> Rewind the master branch to get rid of those three commits.
<3> Switch to "topic/wip" branch and keep working.
------------
Undo update-index::
+
------------
$ edit <1>
$ edit <1>
$ git-update-index frotz.c filfre.c
$ mailx <2>
$ git reset <3>
$ git pull git://info.example.com/ nitfol <4>
$ mailx <2>
$ git reset <3>
$ git pull git://info.example.com/ nitfol <4>
------------
+
<1> you are happily working on something, and find the changes
in these files are in good order. You do not want to see them
when you run "git diff", because you plan to work on other files
@ -109,12 +110,11 @@ index changes for these two files. Your changes in working tree
remain there.
<4> then you can pull and merge, leaving frotz.c and filfre.c
changes still in the working tree.
------------
Undo a merge or pull::
+
------------
$ git pull <1>
$ git pull <1>
Trying really trivial in-index merge...
fatal: Merge requires file-level merging
Nope.
@ -122,20 +122,19 @@ Nope.
Auto-merging nitfol
CONFLICT (content): Merge conflict in nitfol
Automatic merge failed/prevented; fix up by hand
$ git reset --hard <2>
$ git reset --hard <2>
$ git pull . topic/branch <3>
Updating from 41223... to 13134...
Fast forward
$ git reset --hard ORIG_HEAD <4>
------------
+
<1> try to update from the upstream resulted in a lot of
conflicts; you were not ready to spend a lot of time merging
right now, so you decide to do that later.
<2> "pull" has not made merge commit, so "git reset --hard"
which is a synonym for "git reset --hard HEAD" clears the mess
from the index file and the working tree.
$ git pull . topic/branch <3>
Updating from 41223... to 13134...
Fast forward
$ git reset --hard ORIG_HEAD <4>
<3> merge a topic branch into the current branch, which resulted
in a fast forward.
<4> but you decided that the topic branch is not ready for public
@ -143,7 +142,6 @@ consumption yet. "pull" or "merge" always leaves the original
tip of the current branch in ORIG_HEAD, so resetting hard to it
brings your index file and the working tree back to that state,
and resets the tip of the branch to that commit.
------------
Interrupted workflow::
+
@ -155,21 +153,21 @@ need to get to the other branch for a quick bugfix.
------------
$ git checkout feature ;# you were working in "feature" branch and
$ work work work ;# got interrupted
$ git commit -a -m 'snapshot WIP' <1>
$ git commit -a -m 'snapshot WIP' <1>
$ git checkout master
$ fix fix fix
$ git commit ;# commit with real log
$ git checkout feature
$ git reset --soft HEAD^ ;# go back to WIP state <2>
$ git reset <3>
$ git reset --soft HEAD^ ;# go back to WIP state <2>
$ git reset <3>
------------
+
<1> This commit will get blown away so a throw-away log message is OK.
<2> This removes the 'WIP' commit from the commit history, and sets
your working tree to the state just before you made that snapshot.
<3> After <2>, the index file still has all the WIP changes you
committed in <1>. This sets it to the last commit you were
basing the WIP changes on.
------------
<3> At this point the index file still has all the WIP changes you
committed as 'snapshot WIP'. This updates the index to show your
WIP files as uncommitted.
Author
------

2
Documentation/git-rm.txt
View File

@ -32,7 +32,7 @@ OPTIONS
-v::
Be verbose.
--::
\--::
This option can be used to separate command-line options from
the list of files, (useful when filenames might be mistaken
for command-line options).

13
Documentation/git-unpack-objects.txt
View File

@ -13,9 +13,16 @@ SYNOPSIS
DESCRIPTION
-----------
Reads a packed archive (.pack) from the standard input, and
expands the objects contained in the pack into "one-file
one-object" format in $GIT_OBJECT_DIRECTORY.
Read a packed archive (.pack) from the standard input, expanding
the objects contained within and writing them into the repository in
"loose" (one object per file) format.
Objects that already exist in the repository will *not* be unpacked
from the pack-file. Therefore, nothing will be unpacked if you use
this command on a pack-file that exists within the target repository.
Please see the `git-repack` documentation for options to generate
new packs and replace existing ones.
OPTIONS
-------

43
Documentation/git-update-index.txt
View File

@ -10,12 +10,12 @@ SYNOPSIS
--------
[verse]
'git-update-index'
[--add] [--remove | --force-remove] [--replace]
[--refresh [-q] [--unmerged] [--ignore-missing]]
[--add] [--remove | --force-remove] [--replace]
[--refresh] [-q] [--unmerged] [--ignore-missing]
[--cacheinfo <mode> <object> <file>]\*
[--chmod=(+|-)x]
[--assume-unchanged | --no-assume-unchanged]
[--really-refresh]
[--really-refresh] [--unresolve]
[--info-only] [--index-info]
[-z] [--stdin]
[--verbose]
@ -80,6 +80,10 @@ OPTIONS
filesystem that has very slow lstat(2) system call
(e.g. cifs).
--unresolve::
Restores the 'unmerged' or 'needs updating' state of a
file during a merge if it was cleared by accident.
--info-only::
Do not create objects in the object database for all
<file> arguments that follow this flag; just insert
@ -109,7 +113,7 @@ OPTIONS
Only meaningful with `--stdin`; paths are separated with
NUL character instead of LF.
--::
\--::
Do not interpret any more arguments as options.
<file>::
@ -247,34 +251,33 @@ To update and refresh only the files already checked out:
$ git-checkout-index -n -f -a && git-update-index --ignore-missing --refresh
----------------
On an inefficient filesystem with `core.ignorestat` set:
On an inefficient filesystem with `core.ignorestat` set::
+
------------
$ git update-index --really-refresh <1>
$ git update-index --no-assume-unchanged foo.c <2>
$ git diff --name-only <3>
$ git update-index --really-refresh <1>
$ git update-index --no-assume-unchanged foo.c <2>
$ git diff --name-only <3>
$ edit foo.c
$ git diff --name-only <4>
$ git diff --name-only <4>
M foo.c
$ git update-index foo.c <5>
$ git diff --name-only <6>
$ git update-index foo.c <5>
$ git diff --name-only <6>
$ edit foo.c
$ git diff --name-only <7>
$ git update-index --no-assume-unchanged foo.c <8>
$ git diff --name-only <9>
$ git diff --name-only <7>
$ git update-index --no-assume-unchanged foo.c <8>
$ git diff --name-only <9>
M foo.c
<1> forces lstat(2) to set "assume unchanged" bits for paths
that match index.
------------
+
<1> forces lstat(2) to set "assume unchanged" bits for paths that match index.
<2> mark the path to be edited.
<3> this does lstat(2) and finds index matches the path.
<4> this does lstat(2) and finds index does not match the path.
<4> this does lstat(2) and finds index does *not* match the path.
<5> registering the new version to index sets "assume unchanged" bit.
<6> and it is assumed unchanged.
<7> even after you edit it.
<8> you can tell about the change after the fact.
<9> now it checks with lstat(2) and finds it has been changed.
------------
Configuration

6
Documentation/git-var.txt
View File

@ -17,7 +17,10 @@ Prints a git logical variable.
OPTIONS
-------
-l::
Cause the logical variables to be listed.
Cause the logical variables to be listed. In addition, all the
variables of the git configuration file .git/config are listed
as well. (However, the configuration variables listing functionality
is deprecated in favor of `git-repo-config -l`.)
EXAMPLE
--------
@ -46,6 +49,7 @@ See Also
--------
gitlink:git-commit-tree[1]
gitlink:git-tag[1]
gitlink:git-repo-config[1]
Author
------

2
Documentation/git-verify-pack.txt
View File

@ -25,7 +25,7 @@ OPTIONS
-v::
After verifying the pack, show list of objects contained
in the pack.
--::
\--::
Do not interpret any more arguments as options.
OUTPUT FORMAT

2
Documentation/git-whatchanged.txt
View File

@ -58,7 +58,7 @@ git-whatchanged -p v2.6.12.. include/scsi drivers/scsi::
Show as patches the commits since version 'v2.6.12' that changed
any file in the include/scsi or drivers/scsi subdirectories
git-whatchanged --since="2 weeks ago" -- gitk::
git-whatchanged --since="2 weeks ago" \-- gitk::
Show the changes during the last two weeks to the file 'gitk'.
The "--" is necessary to avoid confusion with the *branch* named

2
Documentation/gitk.txt
View File

@ -31,7 +31,7 @@ gitk v2.6.12.. include/scsi drivers/scsi::
Show as the changes since version 'v2.6.12' that changed any
file in the include/scsi or drivers/scsi subdirectories
gitk --since="2 weeks ago" -- gitk::
gitk --since="2 weeks ago" \-- gitk::
Show the changes during the last two weeks to the file 'gitk'.
The "--" is necessary to avoid confusion with the *branch* named

445
Documentation/glossary.txt
View File

@ -1,39 +1,71 @@
object::
The unit of storage in git. It is uniquely identified by
the SHA1 of its contents. Consequently, an object can not
be changed.
alternate object database::
Via the alternates mechanism, a repository can inherit part of its
object database from another object database, which is called
"alternate".
object name::
The unique identifier of an object. The hash of the object's contents
using the Secure Hash Algorithm 1 and usually represented by the 40
character hexadecimal encoding of the hash of the object (possibly
followed by a white space).
SHA1::
Synonym for object name.
object identifier::
Synonym for object name.
hash::
In git's context, synonym to object name.
object database::
Stores a set of "objects", and an individual object is identified
by its object name. The objects usually live in `$GIT_DIR/objects/`.
bare repository::
A bare repository is normally an appropriately named
directory with a `.git` suffix that does not have a
locally checked-out copy of any of the files under revision
control. That is, all of the `git` administrative and
control files that would normally be present in the
hidden `.git` sub-directory are directly present in
the `repository.git` directory instead, and no other files
are present and checked out. Usually publishers of public
repositories make bare repositories available.
blob object::
Untyped object, e.g. the contents of a file.
tree object::
An object containing a list of file names and modes along with refs
to the associated blob and/or tree objects. A tree is equivalent
to a directory.
branch::
A non-cyclical graph of revisions, i.e. the complete history of
a particular revision, which is called the branch head. The
branch heads are stored in `$GIT_DIR/refs/heads/`.
tree::
Either a working tree, or a tree object together with the
dependent blob and tree objects (i.e. a stored representation
of a working tree).
cache::
Obsolete for: index.
chain::
A list of objects, where each object in the list contains a
reference to its successor (for example, the successor of a commit
could be one of its parents).
changeset::
BitKeeper/cvsps speak for "commit". Since git does not store
changes, but states, it really does not make sense to use
the term "changesets" with git.
checkout::
The action of updating the working tree to a revision which was
stored in the object database.
cherry-picking::
In SCM jargon, "cherry pick" means to choose a subset of
changes out of a series of changes (typically commits)
and record them as a new series of changes on top of
different codebase. In GIT, this is performed by
"git cherry-pick" command to extract the change
introduced by an existing commit and to record it based
on the tip of the current branch as a new commit.
clean::
A working tree is clean, if it corresponds to the revision
referenced by the current head. Also see "dirty".
commit::
As a verb: The action of storing the current state of the index in the
object database. The result is a revision.
As a noun: Short hand for commit object.
commit object::
An object which contains the information about a particular
revision, such as parents, committer, author, date and the
tree object which corresponds to the top directory of the
stored revision.
core git::
Fundamental data structures and utilities of git. Exposes only
limited source code management tools.
DAG::
Directed acyclic graph. The commit objects form a directed acyclic
@ -41,6 +73,63 @@ DAG::
objects is acyclic (there is no chain which begins and ends with the
same object).
dircache::
You are *waaaaay* behind.
dirty::
A working tree is said to be dirty if it contains modifications
which have not been committed to the current branch.
directory::
The list you get with "ls" :-)
ent::
Favorite synonym to "tree-ish" by some total geeks. See
`http://en.wikipedia.org/wiki/Ent_(Middle-earth)` for an in-depth
explanation.
fast forward::
A fast-forward is a special type of merge where you have
a revision and you are "merging" another branch's changes
that happen to be a descendant of what you have.
In such these cases, you do not make a new merge commit but
instead just update to his revision. This will happen
frequently on a tracking branch of a remote repository.
fetch::
Fetching a branch means to get the branch's head ref from a
remote repository, to find out which objects are missing from
the local object database, and to get them, too.
file system::
Linus Torvalds originally designed git to be a user space file
system, i.e. the infrastructure to hold files and directories.
That ensured the efficiency and speed of git.
git archive::
Synonym for repository (for arch people).
hash::
In git's context, synonym to object name.
head::
The top of a branch. It contains a ref to the corresponding
commit object.
head ref::
A ref pointing to a head. Often, this is abbreviated to "head".
Head refs are stored in `$GIT_DIR/refs/heads/`.
hook::
During the normal execution of several git commands,
call-outs are made to optional scripts that allow
a developer to add functionality or checking.
Typically, the hooks allow for a command to be pre-verified
and potentially aborted, and allow for a post-notification
after the operation is done.
The hook scripts are found in the `$GIT_DIR/hooks/` directory,
and are enabled by simply making them executable.
index::
A collection of files with stat information, whose contents are
stored as objects. The index is a stored version of your working
@ -53,92 +142,167 @@ index entry::
yet finished (i.e. if the index contains multiple versions of
that file).
unmerged index:
An index which contains unmerged index entries.
master::
The default development branch. Whenever you create a git
repository, a branch named "master" is created, and becomes
the active branch. In most cases, this contains the local
development, though that is purely conventional and not required.
cache::
Obsolete for: index.
merge::
To merge branches means to try to accumulate the changes since a
common ancestor and apply them to the first branch. An automatic
merge uses heuristics to accomplish that. Evidently, an automatic
merge can fail.
working tree::
The set of files and directories currently being worked on,
i.e. you can work in your working tree without using git at all.
object::
The unit of storage in git. It is uniquely identified by
the SHA1 of its contents. Consequently, an object can not
be changed.
directory::
The list you get with "ls" :-)
object database::
Stores a set of "objects", and an individual object is identified
by its object name. The objects usually live in `$GIT_DIR/objects/`.
revision::
A particular state of files and directories which was stored in
the object database. It is referenced by a commit object.
object identifier::
Synonym for object name.
checkout::
The action of updating the working tree to a revision which was
stored in the object database.
object name::
The unique identifier of an object. The hash of the object's contents
using the Secure Hash Algorithm 1 and usually represented by the 40
character hexadecimal encoding of the hash of the object (possibly
followed by a white space).
commit::
As a verb: The action of storing the current state of the index in the
object database. The result is a revision.
As a noun: Short hand for commit object.
object type:
One of the identifiers "commit","tree","tag" and "blob" describing
the type of an object.
commit object::
An object which contains the information about a particular
revision, such as parents, committer, author, date and the
tree object which corresponds to the top directory of the
stored revision.
octopus::
To merge more than two branches. Also denotes an intelligent
predator.
origin::
The default upstream tracking branch. Most projects have at
least one upstream project which they track. By default
'origin' is used for that purpose. New upstream updates
will be fetched into this branch; you should never commit
to it yourself.
pack::
A set of objects which have been compressed into one file (to save
space or to transmit them efficiently).
pack index::
The list of identifiers, and other information, of the objects in a
pack, to assist in efficiently accessing the contents of a pack.
parent::
A commit object contains a (possibly empty) list of the logical
predecessor(s) in the line of development, i.e. its parents.
changeset::
BitKeeper/cvsps speak for "commit". Since git does not store
changes, but states, it really does not make sense to use
the term "changesets" with git.
pickaxe::
The term pickaxe refers to an option to the diffcore routines
that help select changes that add or delete a given text string.
With the --pickaxe-all option, it can be used to view the
full changeset that introduced or removed, say, a particular
line of text. See gitlink:git-diff[1].
clean::
A working tree is clean, if it corresponds to the revision
referenced by the current head.
plumbing::
Cute name for core git.
dirty::
A working tree is said to be dirty if it contains modifications
which have not been committed to the current branch.
porcelain::
Cute name for programs and program suites depending on core git,
presenting a high level access to core git. Porcelains expose
more of a SCM interface than the plumbing.
head::
The top of a branch. It contains a ref to the corresponding
commit object.
pull::
Pulling a branch means to fetch it and merge it.
branch::
A non-cyclical graph of revisions, i.e. the complete history of
a particular revision, which is called the branch head. The
branch heads are stored in `$GIT_DIR/refs/heads/`.
push::
Pushing a branch means to get the branch's head ref from a remote
repository, find out if it is an ancestor to the branch's local
head ref is a direct, and in that case, putting all objects, which
are reachable from the local head ref, and which are missing from
the remote repository, into the remote object database, and updating
the remote head ref. If the remote head is not an ancestor to the
local head, the push fails.
master::
The default branch. Whenever you create a git repository, a branch
named "master" is created, and becomes the active branch. In most
cases, this contains the local development.
reachable::
An object is reachable from a ref/commit/tree/tag, if there is a
chain leading from the latter to the former.
origin::
The default upstream branch. Most projects have one upstream
project which they track, and by default 'origin' is used for
that purpose. New updates from upstream will be fetched into
this branch; you should never commit to it yourself.
rebase::
To clean a branch by starting from the head of the main line of
development ("master"), and reapply the (possibly cherry-picked)
changes from that branch.
ref::
A 40-byte hex representation of a SHA1 pointing to a particular
object. These may be stored in `$GIT_DIR/refs/`.
A 40-byte hex representation of a SHA1 or a name that denotes
a particular object. These may be stored in `$GIT_DIR/refs/`.
head ref::
A ref pointing to a head. Often, this is abbreviated to "head".
Head refs are stored in `$GIT_DIR/refs/heads/`.
refspec::
A refspec is used by fetch and push to describe the mapping
between remote ref and local ref. They are combined with
a colon in the format <src>:<dst>, preceded by an optional
plus sign, +. For example:
`git fetch $URL refs/heads/master:refs/heads/origin`
means "grab the master branch head from the $URL and store
it as my origin branch head".
And `git push $URL refs/heads/master:refs/heads/to-upstream`
means "publish my master branch head as to-upstream master head
at $URL". See also gitlink:git-push[1]
repository::
A collection of refs together with an object database containing
all objects, which are reachable from the refs, possibly accompanied
by meta data from one or more porcelains. A repository can
share an object database with other repositories.
resolve::
The action of fixing up manually what a failed automatic merge
left behind.
revision::
A particular state of files and directories which was stored in
the object database. It is referenced by a commit object.
rewind::
To throw away part of the development, i.e. to assign the head to
an earlier revision.
SCM::
Source code management (tool).
SHA1::
Synonym for object name.
topic branch::
A regular git branch that is used by a developer to
identify a conceptual line of development. Since branches
are very easy and inexpensive, it is often desirable to
have several small branches that each contain very well
defined concepts or small incremental yet related changes.
tracking branch::
A regular git branch that is used to follow changes from
another repository. A tracking branch should not contain
direct modifications or have local commits made to it.
A tracking branch can usually be identified as the
right-hand-side ref in a Pull: refspec.
tree object::
An object containing a list of file names and modes along with refs
to the associated blob and/or tree objects. A tree is equivalent
to a directory.
tree::
Either a working tree, or a tree object together with the
dependent blob and tree objects (i.e. a stored representation
of a working tree).
tree-ish::
A ref pointing to either a commit object, a tree object, or a
tag object pointing to a tag or commit or tree object.
ent::
Favorite synonym to "tree-ish" by some total geeks. See
`http://en.wikipedia.org/wiki/Ent_(Middle-earth)` for an in-depth
explanation.
tag object::
An object containing a ref pointing to another object, which can
contain a message just like a commit object. It can also
@ -153,101 +317,10 @@ tag::
A tag is most typically used to mark a particular point in the
commit ancestry chain.
merge::
To merge branches means to try to accumulate the changes since a
common ancestor and apply them to the first branch. An automatic
merge uses heuristics to accomplish that. Evidently, an automatic
merge can fail.
unmerged index:
An index which contains unmerged index entries.
octopus::
To merge more than two branches. Also denotes an intelligent
predator.
resolve::
The action of fixing up manually what a failed automatic merge
left behind.
rewind::
To throw away part of the development, i.e. to assign the head to
an earlier revision.
rebase::
To clean a branch by starting from the head of the main line of
development ("master"), and reapply the (possibly cherry-picked)
changes from that branch.
repository::
A collection of refs together with an object database containing
all objects, which are reachable from the refs, possibly accompanied
by meta data from one or more porcelains. A repository can
share an object database with other repositories.
git archive::
Synonym for repository (for arch people).
file system::
Linus Torvalds originally designed git to be a user space file
system, i.e. the infrastructure to hold files and directories.
That ensured the efficiency and speed of git.
alternate object database::
Via the alternates mechanism, a repository can inherit part of its
object database from another object database, which is called
"alternate".
reachable::
An object is reachable from a ref/commit/tree/tag, if there is a
chain leading from the latter to the former.
chain::
A list of objects, where each object in the list contains a
reference to its successor (for example, the successor of a commit
could be one of its parents).
fetch::
Fetching a branch means to get the branch's head ref from a
remote repository, to find out which objects are missing from
the local object database, and to get them, too.
pull::
Pulling a branch means to fetch it and merge it.
push::
Pushing a branch means to get the branch's head ref from a remote
repository, find out if it is an ancestor to the branch's local
head ref is a direct, and in that case, putting all objects, which
are reachable from the local head ref, and which are missing from
the remote repository, into the remote object database, and updating
the remote head ref. If the remote head is not an ancestor to the
local head, the push fails.
pack::
A set of objects which have been compressed into one file (to save
space or to transmit them efficiently).
pack index::
The list of identifiers, and other information, of the objects in a
pack, to assist in efficiently accessing the contents of a pack.
core git::
Fundamental data structures and utilities of git. Exposes only
limited source code management tools.
plumbing::
Cute name for core git.
porcelain::
Cute name for programs and program suites depending on core git,
presenting a high level access to core git. Porcelains expose
more of a SCM interface than the plumbing.
object type:
One of the identifiers "commit","tree","tag" and "blob" describing
the type of an object.
SCM::
Source code management (tool).
dircache::
You are *waaaaay* behind.
working tree::
The set of files and directories currently being worked on,
i.e. you can work in your working tree without using git at all.

2
Documentation/sort_glossary.pl
View File

@ -48,7 +48,7 @@ ($)
';
@keys=sort {uc($a) cmp uc($b)} keys %terms;
$pattern='(\b'.join('\b|\b',reverse @keys).'\b)';
$pattern='(\b(?<!link:git-)'.join('\b|\b(?<!link:git-)',reverse @keys).'\b)';
foreach $key (@keys) {
$terms{$key}=~s/$pattern/sprintf "<<ref_".no_spaces($1).",$1>>";/eg;
print '[[ref_'.no_spaces($key).']]'.$key."::\n"

36
Makefile
View File

@ -28,8 +28,8 @@ all:
#
# Define NO_SETENV if you don't have setenv in the C library.
#
# Define USE_SYMLINK_HEAD if you want .git/HEAD to be a symbolic link.
# Don't enable it on Windows.
# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
# Enable it on Windows. By default, symrefs are still used.
#
# Define PPC_SHA1 environment variable when running make to make use of
# a bundled SHA1 routine optimized for PowerPC.
@ -115,13 +115,13 @@ SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__
SCRIPT_SH = \
git-add.sh git-bisect.sh git-branch.sh git-checkout.sh \
git-cherry.sh git-clean.sh git-clone.sh git-commit.sh \
git-count-objects.sh git-diff.sh git-fetch.sh \
git-fetch.sh \
git-format-patch.sh git-ls-remote.sh \
git-merge-one-file.sh git-parse-remote.sh \
git-prune.sh git-pull.sh git-push.sh git-rebase.sh \
git-prune.sh git-pull.sh git-rebase.sh \
git-repack.sh git-request-pull.sh git-reset.sh \
git-resolve.sh git-revert.sh git-rm.sh git-sh-setup.sh \
git-tag.sh git-verify-tag.sh git-whatchanged.sh \
git-tag.sh git-verify-tag.sh \
git-applymbox.sh git-applypatch.sh git-am.sh \
git-merge.sh git-merge-stupid.sh git-merge-octopus.sh \
git-merge-resolve.sh git-merge-ours.sh git-grep.sh \
@ -139,7 +139,7 @@ SCRIPT_PYTHON = \
SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH)) \
$(patsubst %.perl,%,$(SCRIPT_PERL)) \
$(patsubst %.py,%,$(SCRIPT_PYTHON)) \
git-cherry-pick git-show git-status
git-cherry-pick git-status
# The ones that do not have to link with lcrypto, lz nor xdiff.
SIMPLE_PROGRAMS = \
@ -167,7 +167,8 @@ PROGRAMS = \
git-name-rev$X git-pack-redundant$X git-repo-config$X git-var$X \
git-describe$X git-merge-tree$X git-blame$X git-imap-send$X
BUILT_INS = git-log$X
BUILT_INS = git-log$X git-whatchanged$X git-show$X \
git-count-objects$X git-diff$X git-push$X
# what 'all' will build and 'install' will install, in gitexecdir
ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@ -199,7 +200,7 @@ LIB_H = \
tree-walk.h log-tree.h
DIFF_OBJS = \
diff-lib.o diffcore-break.o diffcore-order.o \
diff.o diff-lib.o diffcore-break.o diffcore-order.o \
diffcore-pickaxe.o diffcore-rename.o tree-diff.o combine-diff.o \
diffcore-delta.o log-tree.o
@ -214,7 +215,7 @@ LIB_OBJS = \
$(DIFF_OBJS)
BUILTIN_OBJS = \
builtin-log.o builtin-help.o
builtin-log.o builtin-help.o builtin-count.o builtin-diff.o builtin-push.o
GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
LIBS = $(GITLIBS) -lz
@ -263,6 +264,7 @@ ifeq ($(uname_O),Cygwin)
NO_D_TYPE_IN_DIRENT = YesPlease
NO_D_INO_IN_DIRENT = YesPlease
NO_STRCASESTR = YesPlease
NO_SYMLINK_HEAD = YesPlease
NEEDS_LIBICONV = YesPlease
# There are conflicting reports about this.
# On some boxes NO_MMAP is needed, and not so elsewhere.
@ -386,6 +388,9 @@ endif
ifdef NO_D_INO_IN_DIRENT
ALL_CFLAGS += -DNO_D_INO_IN_DIRENT
endif
ifdef NO_SYMLINK_HEAD
ALL_CFLAGS += -DNO_SYMLINK_HEAD
endif
ifdef NO_STRCASESTR
COMPAT_CFLAGS += -DNO_STRCASESTR
COMPAT_OBJS += compat/strcasestr.o
@ -470,6 +475,8 @@ git$X: git.c common-cmds.h $(BUILTIN_OBJS) $(GITLIBS)
$(ALL_CFLAGS) -o $@ $(filter %.c,$^) \
$(BUILTIN_OBJS) $(ALL_LDFLAGS) $(LIBS)
builtin-help.o: common-cmds.h
$(BUILT_INS): git$X
rm -f $@ && ln git$X $@
@ -503,9 +510,6 @@ $(patsubst %.py,%,$(SCRIPT_PYTHON)) : % : %.py
git-cherry-pick: git-revert
cp $< $@
git-show: git-whatchanged
cp $< $@
git-status: git-commit
cp $< $@
@ -560,10 +564,6 @@ git-http-push$X: revision.o http.o http-push.o $(LIB_FILE)
$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)
git-rev-list$X: rev-list.o $(LIB_FILE)
$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(LIBS) $(OPENSSL_LIBSSL)
init-db.o: init-db.c
$(CC) -c $(ALL_CFLAGS) \
-DDEFAULT_GIT_TEMPLATE_DIR='"$(template_dir_SQ)"' $*.c
@ -573,12 +573,12 @@ $(patsubst git-%$X,%.o,$(PROGRAMS)): $(GITLIBS)
$(DIFF_OBJS): diffcore.h
$(LIB_FILE): $(LIB_OBJS)
$(AR) rcs $@ $(LIB_OBJS)
rm -f $@ && $(AR) rcs $@ $(LIB_OBJS)
XDIFF_OBJS=xdiff/xdiffi.o xdiff/xprepare.o xdiff/xutils.o xdiff/xemit.o
$(XDIFF_LIB): $(XDIFF_OBJS)
$(AR) rcs $@ $(XDIFF_OBJS)
rm -f $@ && $(AR) rcs $@ $(XDIFF_OBJS)
doc:

10
blame.c
View File

@ -515,9 +515,9 @@ static int compare_tree_path(struct rev_info* revs,
paths[1] = NULL;
diff_tree_setup_paths(get_pathspec(revs->prefix, paths),
&revs->diffopt);
&revs->pruning);
ret = rev_compare_tree(revs, c1->tree, c2->tree);
diff_tree_release_paths(&revs->diffopt);
diff_tree_release_paths(&revs->pruning);
return ret;
}
@ -531,9 +531,9 @@ static int same_tree_as_empty_path(struct rev_info *revs, struct tree* t1,
paths[1] = NULL;
diff_tree_setup_paths(get_pathspec(revs->prefix, paths),
&revs->diffopt);
&revs->pruning);
ret = rev_same_tree_as_empty(revs, t1);
diff_tree_release_paths(&revs->diffopt);
diff_tree_release_paths(&revs->pruning);
return ret;
}
@ -834,7 +834,7 @@ int main(int argc, const char **argv)
args[0] = filename;
args[1] = NULL;
diff_tree_setup_paths(args, &rev.diffopt);
diff_tree_setup_paths(args, &rev.pruning);
prepare_revision_walk(&rev);
process_commits(&rev, filename, &initial);

125
builtin-count.c Normal file
View File

@ -0,0 +1,125 @@
/*
* Builtin "git count-objects".
*
* Copyright (c) 2006 Junio C Hamano
*/
#include "cache.h"
#include "builtin.h"
static const char count_objects_usage[] = "git-count-objects [-v]";
static void count_objects(DIR *d, char *path, int len, int verbose,
unsigned long *loose,
unsigned long *loose_size,
unsigned long *packed_loose,
unsigned long *garbage)
{
struct dirent *ent;
while ((ent = readdir(d)) != NULL) {
char hex[41];
unsigned char sha1[20];
const char *cp;
int bad = 0;
if ((ent->d_name[0] == '.') &&
(ent->d_name[1] == 0 ||
((ent->d_name[1] == '.') && (ent->d_name[2] == 0))))
continue;
for (cp = ent->d_name; *cp; cp++) {
int ch = *cp;
if (('0' <= ch && ch <= '9') ||
('a' <= ch && ch <= 'f'))
continue;
bad = 1;
break;
}
if (cp - ent->d_name != 38)
bad = 1;
else {
struct stat st;
memcpy(path + len + 3, ent->d_name, 38);
path[len + 2] = '/';
path[len + 41] = 0;
if (lstat(path, &st) || !S_ISREG(st.st_mode))
bad = 1;
else
(*loose_size) += st.st_blocks;
}
if (bad) {
if (verbose) {
error("garbage found: %.*s/%s",
len + 2, path, ent->d_name);
(*garbage)++;
}
continue;
}
(*loose)++;
if (!verbose)
continue;
memcpy(hex, path+len, 2);
memcpy(hex+2, ent->d_name, 38);
hex[40] = 0;
if (get_sha1_hex(hex, sha1))
die("internal error");
if (has_sha1_pack(sha1))
(*packed_loose)++;
}
}
int cmd_count_objects(int ac, const char **av, char **ep)
{
int i;
int verbose = 0;
const char *objdir = get_object_directory();
int len = strlen(objdir);
char *path = xmalloc(len + 50);
unsigned long loose = 0, packed = 0, packed_loose = 0, garbage = 0;
unsigned long loose_size = 0;
for (i = 1; i < ac; i++) {
const char *arg = av[i];
if (*arg != '-')
break;
else if (!strcmp(arg, "-v"))
verbose = 1;
else
usage(count_objects_usage);
}
/* we do not take arguments other than flags for now */
if (i < ac)
usage(count_objects_usage);
memcpy(path, objdir, len);
if (len && objdir[len-1] != '/')
path[len++] = '/';
for (i = 0; i < 256; i++) {
DIR *d;
sprintf(path + len, "%02x", i);
d = opendir(path);
if (!d)
continue;
count_objects(d, path, len, verbose,
&loose, &loose_size, &packed_loose, &garbage);
closedir(d);
}
if (verbose) {
struct packed_git *p;
if (!packed_git)
prepare_packed_git();
for (p = packed_git; p; p = p->next) {
if (!p->pack_local)
continue;
packed += num_packed_objects(p);
}
printf("count: %lu\n", loose);
printf("size: %lu\n", loose_size / 2);
printf("in-pack: %lu\n", packed);
printf("prune-packable: %lu\n", packed_loose);
printf("garbage: %lu\n", garbage);
}
else
printf("%lu objects, %lu kilobytes\n",
loose, loose_size / 2);
return 0;
}

369
builtin-diff.c Normal file
View File

@ -0,0 +1,369 @@
/*
* Builtin "git diff"
*
* Copyright (c) 2006 Junio C Hamano
*/
#include "cache.h"
#include "commit.h"
#include "blob.h"
#include "tag.h"
#include "diff.h"
#include "diffcore.h"
#include "revision.h"
#include "log-tree.h"
#include "builtin.h"
/* NEEDSWORK: struct object has place for name but we _do_
* know mode when we extracted the blob out of a tree, which
* we currently lose.
*/
struct blobinfo {
unsigned char sha1[20];
const char *name;
};
static const char builtin_diff_usage[] =
"diff <options> <rev>{0,2} -- <path>*";
static int builtin_diff_files(struct rev_info *revs,
int argc, const char **argv)
{
int silent = 0;
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--base"))
revs->max_count = 1;
else if (!strcmp(arg, "--ours"))
revs->max_count = 2;
else if (!strcmp(arg, "--theirs"))
revs->max_count = 3;
else if (!strcmp(arg, "-q"))
silent = 1;
else if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
/*
* Make sure there are NO revision (i.e. pending object) parameter,
* specified rev.max_count is reasonable (0 <= n <= 3), and
* there is no other revision filtering parameter.
*/
if (revs->pending_objects ||
revs->min_age != -1 ||
revs->max_age != -1 ||
3 < revs->max_count)
usage(builtin_diff_usage);
if (revs->max_count < 0 &&
(revs->diffopt.output_format == DIFF_FORMAT_PATCH))
revs->combine_merges = revs->dense_combined_merges = 1;
/*
* Backward compatibility wart - "diff-files -s" used to
* defeat the common diff option "-s" which asked for
* DIFF_FORMAT_NO_OUTPUT.
*/
if (revs->diffopt.output_format == DIFF_FORMAT_NO_OUTPUT)
revs->diffopt.output_format = DIFF_FORMAT_RAW;
return run_diff_files(revs, silent);
}
static void stuff_change(struct diff_options *opt,
unsigned old_mode, unsigned new_mode,
const unsigned char *old_sha1,
const unsigned char *new_sha1,
const char *old_name,
const char *new_name)
{
struct diff_filespec *one, *two;
if (memcmp(null_sha1, old_sha1, 20) &&
memcmp(null_sha1, new_sha1, 20) &&
!memcmp(old_sha1, new_sha1, 20))
return;
if (opt->reverse_diff) {
unsigned tmp;
const
const unsigned char *tmp_u;
const char *tmp_c;
tmp = old_mode; old_mode = new_mode; new_mode = tmp;
tmp_u = old_sha1; old_sha1 = new_sha1; new_sha1 = tmp_u;
tmp_c = old_name; old_name = new_name; new_name = tmp_c;
}
one = alloc_filespec(old_name);
two = alloc_filespec(new_name);
fill_filespec(one, old_sha1, old_mode);
fill_filespec(two, new_sha1, new_mode);
/* NEEDSWORK: shouldn't this part of diffopt??? */
diff_queue(&diff_queued_diff, one, two);
}
static int builtin_diff_b_f(struct rev_info *revs,
int argc, const char **argv,
struct blobinfo *blob,
const char *path)
{
/* Blob vs file in the working tree*/
struct stat st;
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
if (lstat(path, &st))
die("'%s': %s", path, strerror(errno));
if (!(S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)))
die("'%s': not a regular file or symlink", path);
stuff_change(&revs->diffopt,
canon_mode(st.st_mode), canon_mode(st.st_mode),
blob[0].sha1, null_sha1,
blob[0].name, path);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return 0;
}
static int builtin_diff_blobs(struct rev_info *revs,
int argc, const char **argv,
struct blobinfo *blob)
{
/* Blobs */
unsigned mode = canon_mode(S_IFREG | 0644);
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
stuff_change(&revs->diffopt,
mode, mode,
blob[0].sha1, blob[1].sha1,
blob[1].name, blob[1].name);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return 0;
}
static int builtin_diff_index(struct rev_info *revs,
int argc, const char **argv)
{
int cached = 0;
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--cached"))
cached = 1;
else if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
/*
* Make sure there is one revision (i.e. pending object),
* and there is no revision filtering parameters.
*/
if (!revs->pending_objects || revs->pending_objects->next ||
revs->max_count != -1 || revs->min_age != -1 ||
revs->max_age != -1)
usage(builtin_diff_usage);
return run_diff_index(revs, cached);
}
static int builtin_diff_tree(struct rev_info *revs,
int argc, const char **argv,
struct object_list *ent)
{
const unsigned char *(sha1[2]);
int swap = 1;
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
/* We saw two trees, ent[0] and ent[1].
* unless ent[0] is unintesting, they are swapped
*/
if (ent[0].item->flags & UNINTERESTING)
swap = 0;
sha1[swap] = ent[0].item->sha1;
sha1[1-swap] = ent[1].item->sha1;
diff_tree_sha1(sha1[0], sha1[1], "", &revs->diffopt);
log_tree_diff_flush(revs);
return 0;
}
static int builtin_diff_combined(struct rev_info *revs,
int argc, const char **argv,
struct object_list *ent,
int ents)
{
const unsigned char (*parent)[20];
int i;
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
if (!revs->dense_combined_merges && !revs->combine_merges)
revs->dense_combined_merges = revs->combine_merges = 1;
parent = xmalloc(ents * sizeof(*parent));
/* Again, the revs are all reverse */
for (i = 0; i < ents; i++)
memcpy(parent + i, ent[ents - 1 - i].item->sha1, 20);
diff_tree_combined(parent[0], parent + 1, ents - 1,
revs->dense_combined_merges, revs);
return 0;
}
static void add_head(struct rev_info *revs)
{
unsigned char sha1[20];
struct object *obj;
if (get_sha1("HEAD", sha1))
return;
obj = parse_object(sha1);
if (!obj)
return;
add_object(obj, &revs->pending_objects, NULL, "HEAD");
}
int cmd_diff(int argc, const char **argv, char **envp)
{
struct rev_info rev;
struct object_list *list, ent[100];
int ents = 0, blobs = 0, paths = 0;
const char *path = NULL;
struct blobinfo blob[2];
/*
* We could get N tree-ish in the rev.pending_objects list.
* Also there could be M blobs there, and P pathspecs.
*
* N=0, M=0:
* cache vs files (diff-files)
* N=0, M=2:
* compare two random blobs. P must be zero.
* N=0, M=1, P=1:
* compare a blob with a working tree file.
*
* N=1, M=0:
* tree vs cache (diff-index --cached)
*
* N=2, M=0:
* tree vs tree (diff-tree)
*
* Other cases are errors.
*/
git_config(git_diff_config);
init_revisions(&rev);
rev.diffopt.output_format = DIFF_FORMAT_PATCH;
argc = setup_revisions(argc, argv, &rev, NULL);
/* Do we have --cached and not have a pending object, then
* default to HEAD by hand. Eek.
*/
if (!rev.pending_objects) {
int i;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!strcmp(arg, "--"))
break;
else if (!strcmp(arg, "--cached")) {
add_head(&rev);
break;
}
}
}
for (list = rev.pending_objects; list; list = list->next) {
struct object *obj = list->item;
const char *name = list->name;
int flags = (obj->flags & UNINTERESTING);
if (!obj->parsed)
obj = parse_object(obj->sha1);
obj = deref_tag(obj, NULL, 0);
if (!obj)
die("invalid object '%s' given.", name);
if (!strcmp(obj->type, commit_type))
obj = &((struct commit *)obj)->tree->object;
if (!strcmp(obj->type, tree_type)) {
if (ARRAY_SIZE(ent) <= ents)
die("more than %d trees given: '%s'",
(int) ARRAY_SIZE(ent), name);
obj->flags |= flags;
ent[ents].item = obj;
ent[ents].name = name;
ents++;
continue;
}
if (!strcmp(obj->type, blob_type)) {
if (2 <= blobs)
die("more than two blobs given: '%s'", name);
memcpy(blob[blobs].sha1, obj->sha1, 20);
blob[blobs].name = name;
blobs++;
continue;
}
die("unhandled object '%s' given.", name);
}
if (rev.prune_data) {
const char **pathspec = rev.prune_data;
while (*pathspec) {
if (!path)
path = *pathspec;
paths++;
pathspec++;
}
}
/*
* Now, do the arguments look reasonable?
*/
if (!ents) {
switch (blobs) {
case 0:
return builtin_diff_files(&rev, argc, argv);
break;
case 1:
if (paths != 1)
usage(builtin_diff_usage);
return builtin_diff_b_f(&rev, argc, argv, blob, path);
break;
case 2:
if (paths)
usage(builtin_diff_usage);
return builtin_diff_blobs(&rev, argc, argv, blob);
break;
default:
usage(builtin_diff_usage);
}
}
else if (blobs)
usage(builtin_diff_usage);
else if (ents == 1)
return builtin_diff_index(&rev, argc, argv);
else if (ents == 2)
return builtin_diff_tree(&rev, argc, argv, ent);
else
return builtin_diff_combined(&rev, argc, argv, ent, ents);
usage(builtin_diff_usage);
}

1
builtin-help.c
View File

@ -3,6 +3,7 @@
*
* Builtin help-related commands (help, usage, version)
*/
#include <sys/ioctl.h>
#include "cache.h"
#include "builtin.h"
#include "exec_cmd.h"

312
builtin-push.c Normal file
View File

@ -0,0 +1,312 @@
/*
* "git push"
*/
#include "cache.h"
#include "refs.h"
#include "run-command.h"
#include "builtin.h"
#define MAX_URI (16)
static const char push_usage[] = "git push [--all] [--tags] [--force] <repository> [<refspec>...]";
static int all = 0, tags = 0, force = 0, thin = 1;
static const char *execute = NULL;
#define BUF_SIZE (2084)
static char buffer[BUF_SIZE];
static const char **refspec = NULL;
static int refspec_nr = 0;
static void add_refspec(const char *ref)
{
int nr = refspec_nr + 1;
refspec = xrealloc(refspec, nr * sizeof(char *));
refspec[nr-1] = ref;
refspec_nr = nr;
}
static int expand_one_ref(const char *ref, const unsigned char *sha1)
{
/* Ignore the "refs/" at the beginning of the refname */
ref += 5;
if (strncmp(ref, "tags/", 5))
return 0;
add_refspec(strdup(ref));
return 0;
}
static void expand_refspecs(void)
{
if (all) {
if (refspec_nr)
die("cannot mix '--all' and a refspec");
/*
* No need to expand "--all" - we'll just use
* the "--all" flag to send-pack
*/
return;
}
if (!tags)
return;
for_each_ref(expand_one_ref);
}
static void set_refspecs(const char **refs, int nr)
{
if (nr) {
size_t bytes = nr * sizeof(char *);
refspec = xrealloc(refspec, bytes);
memcpy(refspec, refs, bytes);
refspec_nr = nr;
}
expand_refspecs();
}
static int get_remotes_uri(const char *repo, const char *uri[MAX_URI])
{
int n = 0;
FILE *f = fopen(git_path("remotes/%s", repo), "r");
int has_explicit_refspec = refspec_nr || all || tags;
if (!f)
return -1;
while (fgets(buffer, BUF_SIZE, f)) {
int is_refspec;
char *s, *p;
if (!strncmp("URL: ", buffer, 5)) {
is_refspec = 0;
s = buffer + 5;
} else if (!strncmp("Push: ", buffer, 6)) {
is_refspec = 1;
s = buffer + 6;
} else
continue;
/* Remove whitespace at the head.. */
while (isspace(*s))
s++;
if (!*s)
continue;
/* ..and at the end */
p = s + strlen(s);
while (isspace(p[-1]))
*--p = 0;
if (!is_refspec) {
if (n < MAX_URI)
uri[n++] = strdup(s);
else
error("more than %d URL's specified, ignoreing the rest", MAX_URI);
}
else if (is_refspec && !has_explicit_refspec)
add_refspec(strdup(s));
}
fclose(f);
if (!n)
die("remote '%s' has no URL", repo);
return n;
}
static const char **config_uri;
static const char *config_repo;
static int config_repo_len;
static int config_current_uri;
static int config_get_refspecs;
static int get_remote_config(const char* key, const char* value)
{
if (!strncmp(key, "remote.", 7) &&
!strncmp(key + 7, config_repo, config_repo_len)) {
if (!strcmp(key + 7 + config_repo_len, ".url")) {
if (config_current_uri < MAX_URI)
config_uri[config_current_uri++] = strdup(value);
else
error("more than %d URL's specified, ignoring the rest", MAX_URI);
}
else if (config_get_refspecs &&
!strcmp(key + 7 + config_repo_len, ".push"))
add_refspec(strdup(value));
}
return 0;
}
static int get_config_remotes_uri(const char *repo, const char *uri[MAX_URI])
{
config_repo_len = strlen(repo);
config_repo = repo;
config_current_uri = 0;
config_uri = uri;
config_get_refspecs = !(refspec_nr || all || tags);
git_config(get_remote_config);
return config_current_uri;
}
static int get_branches_uri(const char *repo, const char *uri[MAX_URI])
{
const char *slash = strchr(repo, '/');
int n = slash ? slash - repo : 1000;
FILE *f = fopen(git_path("branches/%.*s", n, repo), "r");
char *s, *p;
int len;
if (!f)
return 0;
s = fgets(buffer, BUF_SIZE, f);
fclose(f);
if (!s)
return 0;
while (isspace(*s))
s++;
if (!*s)
return 0;
p = s + strlen(s);
while (isspace(p[-1]))
*--p = 0;
len = p - s;
if (slash)
len += strlen(slash);
p = xmalloc(len + 1);
strcpy(p, s);
if (slash)
strcat(p, slash);
uri[0] = p;
return 1;
}
/*
* Read remotes and branches file, fill the push target URI
* list. If there is no command line refspecs, read Push: lines
* to set up the *refspec list as well.
* return the number of push target URIs
*/
static int read_config(const char *repo, const char *uri[MAX_URI])
{
int n;
if (*repo != '/') {
n = get_remotes_uri(repo, uri);
if (n > 0)
return n;
n = get_config_remotes_uri(repo, uri);
if (n > 0)
return n;
n = get_branches_uri(repo, uri);
if (n > 0)
return n;
}
uri[0] = repo;
return 1;
}
static int do_push(const char *repo)
{
const char *uri[MAX_URI];
int i, n;
int remote;
const char **argv;
int argc;
n = read_config(repo, uri);
if (n <= 0)
die("bad repository '%s'", repo);
argv = xmalloc((refspec_nr + 10) * sizeof(char *));
argv[0] = "dummy-send-pack";
argc = 1;
if (all)
argv[argc++] = "--all";
if (force)
argv[argc++] = "--force";
if (execute)
argv[argc++] = execute;
if (thin)
argv[argc++] = "--thin";
remote = argc;
argv[argc++] = "dummy-remote";
while (refspec_nr--)
argv[argc++] = *refspec++;
argv[argc] = NULL;
for (i = 0; i < n; i++) {
int error;
const char *dest = uri[i];
const char *sender = "git-send-pack";
if (!strncmp(dest, "http://", 7) ||
!strncmp(dest, "https://", 8))
sender = "git-http-push";
argv[0] = sender;
argv[remote] = dest;
error = run_command_v(argc, argv);
if (!error)
continue;
switch (error) {
case -ERR_RUN_COMMAND_FORK:
die("unable to fork for %s", sender);
case -ERR_RUN_COMMAND_EXEC:
die("unable to exec %s", sender);
case -ERR_RUN_COMMAND_WAITPID:
case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
die("%s died with strange error", sender);
default:
return -error;
}
}
return 0;
}
int cmd_push(int argc, const char **argv, char **envp)
{
int i;
const char *repo = "origin"; // default repository
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (arg[0] != '-') {
repo = arg;
i++;
break;
}
if (!strcmp(arg, "--all")) {
all = 1;
continue;
}
if (!strcmp(arg, "--tags")) {
tags = 1;
continue;
}
if (!strcmp(arg, "--force")) {
force = 1;
continue;
}
if (!strcmp(arg, "--thin")) {
thin = 1;
continue;
}
if (!strcmp(arg, "--no-thin")) {
thin = 0;
continue;
}
if (!strncmp(arg, "--exec=", 7)) {
execute = arg;
continue;
}
usage(push_usage);
}
set_refspecs(argv + i, argc - i);
return do_push(repo);
}

4
builtin.h
View File

@ -19,6 +19,10 @@ extern int cmd_version(int argc, const char **argv, char **envp);
extern int cmd_whatchanged(int argc, const char **argv, char **envp);
extern int cmd_show(int argc, const char **argv, char **envp);
extern int cmd_log(int argc, const char **argv, char **envp);
extern int cmd_diff(int argc, const char **argv, char **envp);
extern int cmd_format_patch(int argc, const char **argv, char **envp);
extern int cmd_count_objects(int argc, const char **argv, char **envp);
extern int cmd_push(int argc, const char **argv, char **envp);
#endif

4
cache.h
View File

@ -134,6 +134,8 @@ extern const char *setup_git_directory_gently(int *);
extern const char *setup_git_directory(void);
extern const char *prefix_path(const char *prefix, int len, const char *path);
extern const char *prefix_filename(const char *prefix, int len, const char *path);
extern void verify_filename(const char *prefix, const char *name);
extern void verify_non_filename(const char *prefix, const char *name);
#define alloc_nr(x) (((x)+16)*3/2)
@ -167,7 +169,7 @@ extern void rollback_index_file(struct cache_file *);
/* Environment bits from configuration mechanism */
extern int trust_executable_bit;
extern int assume_unchanged;
extern int only_use_symrefs;
extern int prefer_symlink_refs;
extern int warn_ambiguous_refs;
extern int diff_rename_limit_default;
extern int shared_repository;

13
checkout-index.c
View File

@ -269,12 +269,16 @@ int main(int argc, char **argv)
/* Check out named files first */
for ( ; i < argc; i++) {
const char *arg = argv[i];
const char *p;
if (all)
die("git-checkout-index: don't mix '--all' and explicit filenames");
if (read_from_stdin)
die("git-checkout-index: don't mix '--stdin' and explicit filenames");
checkout_file(prefix_path(prefix, prefix_length, arg));
p = prefix_path(prefix, prefix_length, arg);
checkout_file(p);
if (p != arg)
free((char*)p);
}
if (read_from_stdin) {
@ -284,6 +288,8 @@ int main(int argc, char **argv)
strbuf_init(&buf);
while (1) {
char *path_name;
const char *p;
read_line(&buf, stdin, line_termination);
if (buf.eof)
break;
@ -291,7 +297,10 @@ int main(int argc, char **argv)
path_name = unquote_c_style(buf.buf, NULL);
else
path_name = buf.buf;
checkout_file(prefix_path(prefix, prefix_length, path_name));
p = prefix_path(prefix, prefix_length, path_name);
checkout_file(p);
if (p != path_name)
free((char *)p);
if (path_name != buf.buf)
free(path_name);
}

47
combine-diff.c
View File

@ -831,15 +831,16 @@ void show_combined_diff(struct combine_diff_path *p,
}
}
void diff_tree_combined_merge(const unsigned char *sha1,
int dense, struct rev_info *rev)
void diff_tree_combined(const unsigned char *sha1,
const unsigned char parent[][20],
int num_parent,
int dense,
struct rev_info *rev)
{
struct diff_options *opt = &rev->diffopt;
struct commit *commit = lookup_commit(sha1);
struct diff_options diffopts;
struct commit_list *parents;
struct combine_diff_path *p, *paths = NULL;
int num_parent, i, num_paths;
int i, num_paths;
int do_diffstat;
do_diffstat = (opt->output_format == DIFF_FORMAT_DIFFSTAT ||
@ -849,17 +850,8 @@ void diff_tree_combined_merge(const unsigned char *sha1,
diffopts.with_stat = 0;
diffopts.recursive = 1;
/* count parents */
for (parents = commit->parents, num_parent = 0;
parents;
parents = parents->next, num_parent++)
; /* nothing */
/* find set of paths that everybody touches */
for (parents = commit->parents, i = 0;
parents;
parents = parents->next, i++) {
struct commit *parent = parents->item;
for (i = 0; i < num_parent; i++) {
/* show stat against the first parent even
* when doing combined diff.
*/
@ -867,8 +859,7 @@ void diff_tree_combined_merge(const unsigned char *sha1,
diffopts.output_format = DIFF_FORMAT_DIFFSTAT;
else
diffopts.output_format = DIFF_FORMAT_NO_OUTPUT;
diff_tree_sha1(parent->object.sha1, commit->object.sha1, "",
&diffopts);
diff_tree_sha1(parent[i], sha1, "", &diffopts);
diffcore_std(&diffopts);
paths = intersect_paths(paths, i, num_parent);
@ -907,3 +898,25 @@ void diff_tree_combined_merge(const unsigned char *sha1,
free(tmp);
}
}
void diff_tree_combined_merge(const unsigned char *sha1,
int dense, struct rev_info *rev)
{
int num_parent;
const unsigned char (*parent)[20];
struct commit *commit = lookup_commit(sha1);
struct commit_list *parents;
/* count parents */
for (parents = commit->parents, num_parent = 0;
parents;
parents = parents->next, num_parent++)
; /* nothing */
parent = xmalloc(num_parent * sizeof(*parent));
for (parents = commit->parents, num_parent = 0;
parents;
parents = parents->next, num_parent++)
memcpy(parent + num_parent, parents->item->object.sha1, 20);
diff_tree_combined(sha1, parent, num_parent, dense, rev);
}

13
commit-tree.c
View File

@ -45,14 +45,13 @@ static void add_buffer(char **bufp, unsigned int *sizep, const char *fmt, ...)
static void check_valid(unsigned char *sha1, const char *expect)
{
void *buf;
char type[20];
unsigned long size;
buf = read_sha1_file(sha1, type, &size);
if (!buf || strcmp(type, expect))
die("%s is not a valid '%s' object", sha1_to_hex(sha1), expect);
free(buf);
if (sha1_object_info(sha1, type, NULL))
die("%s is not a valid object", sha1_to_hex(sha1));
if (expect && strcmp(type, expect))
die("%s is not a valid '%s' object", sha1_to_hex(sha1),
expect);
}
/*
@ -92,7 +91,7 @@ int main(int argc, char **argv)
git_config(git_default_config);
if (argc < 2 || get_sha1_hex(argv[1], tree_sha1) < 0)
if (argc < 2 || get_sha1(argv[1], tree_sha1) < 0)
usage(commit_tree_usage);
check_valid(tree_sha1, tree_type);

25
config.c
View File

@ -60,6 +60,12 @@ static char *parse_value(void)
space = 1;
continue;
}
if (!quote) {
if (c == ';' || c == '#') {
comment = 1;
continue;
}
}
if (space) {
if (len)
value[len++] = ' ';
@ -93,12 +99,6 @@ static char *parse_value(void)
quote = 1-quote;
continue;
}
if (!quote) {
if (c == ';' || c == '#') {
comment = 1;
continue;
}
}
value[len++] = c;
}
}
@ -227,8 +227,8 @@ int git_default_config(const char *var, const char *value)
return 0;
}
if (!strcmp(var, "core.symrefsonly")) {
only_use_symrefs = git_config_bool(var, value);
if (!strcmp(var, "core.prefersymlinkrefs")) {
prefer_symlink_refs = git_config_bool(var, value);
return 0;
}
@ -252,7 +252,7 @@ int git_default_config(const char *var, const char *value)
return 0;
}
/* Add other config variables here.. */
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
@ -335,8 +335,11 @@ static int store_aux(const char* key, const char* value)
store.offset[store.seen] = ftell(config_file);
store.state = KEY_SEEN;
store.seen++;
} else if(!strncmp(key, store.key, store.baselen))
store.state = SECTION_SEEN;
} else if (strrchr(key, '.') - key == store.baselen &&
!strncmp(key, store.key, store.baselen)) {
store.state = SECTION_SEEN;
store.offset[store.seen] = ftell(config_file);
}
}
return 0;
}

2
contrib/colordiff/README Normal file
View File

@ -0,0 +1,2 @@
This is "colordiff" (http://colordiff.sourceforge.net/) by Dave
Ewart <davee@sungate.co.uk>, modified specifically for git.

196
contrib/colordiff/colordiff.perl Executable file
View File

@ -0,0 +1,196 @@
#!/usr/bin/perl -w
#
# $Id: colordiff.pl,v 1.4.2.10 2004/01/04 15:02:59 daveewart Exp $
########################################################################
# #
# ColorDiff - a wrapper/replacment for 'diff' producing #
# colourful output #
# #
# Copyright (C)2002-2004 Dave Ewart (davee@sungate.co.uk) #
# #
########################################################################
# #
# This program is free software; you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation; either version 2 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program; if not, write to the Free Software #
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. #
# #
########################################################################
use strict;
use Getopt::Long qw(:config pass_through);
use IPC::Open2;
my $app_name = 'colordiff';
my $version = '1.0.4';
my $author = 'Dave Ewart';
my $author_email = 'davee@sungate.co.uk';
my $app_www = 'http://colordiff.sourceforge.net/';
my $copyright = '(C)2002-2004';
my $show_banner = 1;
# ANSI sequences for colours
my %colour;
$colour{white} = "\033[1;37m";
$colour{yellow} = "\033[1;33m";
$colour{green} = "\033[1;32m";
$colour{blue} = "\033[1;34m";
$colour{cyan} = "\033[1;36m";
$colour{red} = "\033[1;31m";
$colour{magenta} = "\033[1;35m";
$colour{black} = "\033[1;30m";
$colour{darkwhite} = "\033[0;37m";
$colour{darkyellow} = "\033[0;33m";
$colour{darkgreen} = "\033[0;32m";
$colour{darkblue} = "\033[0;34m";
$colour{darkcyan} = "\033[0;36m";
$colour{darkred} = "\033[0;31m";
$colour{darkmagenta} = "\033[0;35m";
$colour{darkblack} = "\033[0;30m";
$colour{OFF} = "\033[0;0m";
# Default colours if /etc/colordiffrc or ~/.colordiffrc do not exist
my $plain_text = $colour{OFF};
my $file_old = $colour{red};
my $file_new = $colour{blue};
my $diff_stuff = $colour{magenta};
# Locations for personal and system-wide colour configurations
my $HOME = $ENV{HOME};
my $etcdir = '/etc';
my ($setting, $value);
my @config_files = ("$etcdir/colordiffrc", "$HOME/.colordiffrc");
my $config_file;
foreach $config_file (@config_files) {
if (open(COLORDIFFRC, "<$config_file")) {
while (<COLORDIFFRC>) {
chop;
next if (/^#/ || /^$/);
s/\s+//g;
($setting, $value) = split ('=');
if ($setting eq 'banner') {
if ($value eq 'no') {
$show_banner = 0;
}
next;
}
if (!defined $colour{$value}) {
print "Invalid colour specification ($value) in $config_file\n";
next;
}
if ($setting eq 'plain') {
$plain_text = $colour{$value};
}
elsif ($setting eq 'oldtext') {
$file_old = $colour{$value};
}
elsif ($setting eq 'newtext') {
$file_new = $colour{$value};
}
elsif ($setting eq 'diffstuff') {
$diff_stuff = $colour{$value};
}
else {
print "Unknown option in $etcdir/colordiffrc: $setting\n";
}
}
close COLORDIFFRC;
}
}
# colordiff specfic options here. Need to pre-declare if using variables
GetOptions(
"no-banner" => sub { $show_banner = 0 },
"plain-text=s" => \&set_color,
"file-old=s" => \&set_color,
"file-new=s" => \&set_color,
"diff-stuff=s" => \&set_color
);
if ($show_banner == 1) {
print STDERR "$app_name $version ($app_www)\n";
print STDERR "$copyright $author, $author_email\n\n";
}
if (defined $ARGV[0]) {
# More reliable way of pulling in arguments
open2(\*INPUTSTREAM, undef, "git", "diff", @ARGV);
}
else {
*INPUTSTREAM = \*STDIN;
}
my $record;
my $nrecs = 0;
my $inside_file_old = 1;
my $nparents = undef;
while (<INPUTSTREAM>) {
$nrecs++;
if (/^(\@\@+) -[-+0-9, ]+ \1/) {
print "$diff_stuff";
$nparents = length($1) - 1;
}
elsif (/^diff -/ || /^index / ||
/^old mode / || /^new mode / ||
/^deleted file mode / || /^new file mode / ||
/^similarity index / || /^dissimilarity index / ||
/^copy from / || /^copy to / ||
/^rename from / || /^rename to /) {
$nparents = undef;
print "$diff_stuff";
}
elsif (defined $nparents) {
if ($nparents == 1) {
if (/^\+/) {
print $file_new;
}
elsif (/^-/) {
print $file_old;
}
else {
print $plain_text;
}
}
elsif (/^ {$nparents}/) {
print "$plain_text";
}
elsif (/^[+ ]{$nparents}/) {
print "$file_new";
}
elsif (/^[- ]{$nparents}/) {
print "$file_old";
}
else {
print $plain_text;
}
}
elsif (/^--- / || /^\+\+\+ /) {
print $diff_stuff;
}
else {
print "$plain_text";
}
s/$/$colour{OFF}/;
print "$_";
}
close INPUTSTREAM;
sub set_color {
my ($type, $color) = @_;
$type =~ s/-/_/;
eval "\$$type = \$colour{$color}";
}

8
contrib/git-svn/git-svn.perl
View File

@ -8,7 +8,7 @@
$GIT_SVN_INDEX $GIT_SVN
$GIT_DIR $REV_DIR/;
$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
$VERSION = '0.11.0';
$VERSION = '1.0.0';
use Cwd qw/abs_path/;
$GIT_DIR = abs_path($ENV{GIT_DIR} || '.git');
@ -42,7 +42,8 @@
my %cmd = (
fetch => [ \&fetch, "Download new revisions from SVN",
{ 'revision|r=s' => \$_revision, %fc_opts } ],
init => [ \&init, "Initialize and fetch (import)", { } ],
init => [ \&init, "Initialize a repo for tracking" .
" (requires URL argument)", { } ],
commit => [ \&commit, "Commit git revisions to SVN",
{ 'stdin|' => \$_stdin,
'edit|e' => \$_edit,
@ -220,7 +221,8 @@ sub rebuild {
}
sub init {
$SVN_URL = shift or croak "SVN repository location required\n";
$SVN_URL = shift or die "SVN repository location required " .
"as a command-line argument\n";
unless (-d $GIT_DIR) {
sys('git-init-db');
}

45
contrib/git-svn/git-svn.txt
View File

@ -36,17 +36,22 @@ COMMANDS
--------
init::
Creates an empty git repository with additional metadata
directories for git-svn. The SVN_URL must be specified
at this point.
directories for git-svn. The Subversion URL must be specified
as a command-line argument.
fetch::
Fetch unfetched revisions from the SVN_URL we are tracking.
refs/heads/remotes/git-svn will be updated to the latest revision.
Fetch unfetched revisions from the Subversion URL we are
tracking. refs/remotes/git-svn will be updated to the
latest revision.
Note: You should never attempt to modify the remotes/git-svn branch
outside of git-svn. Instead, create a branch from remotes/git-svn
and work on that branch. Use the 'commit' command (see below)
to write git commits back to remotes/git-svn.
Note: You should never attempt to modify the remotes/git-svn
branch outside of git-svn. Instead, create a branch from
remotes/git-svn and work on that branch. Use the 'commit'
command (see below) to write git commits back to
remotes/git-svn.
See 'Additional Fetch Arguments' if you are interested in
manually joining branches on commit.
commit::
Commit specified commit or tree objects to SVN. This relies on
@ -62,9 +67,9 @@ rebuild::
tracked with git-svn. Unfortunately, git-clone does not clone
git-svn metadata and the svn working tree that git-svn uses for
its operations. This rebuilds the metadata so git-svn can
resume fetch operations. SVN_URL may be optionally specified if
the directory/repository you're tracking has moved or changed
protocols.
resume fetch operations. A Subversion URL may be optionally
specified at the command-line if the directory/repository you're
tracking has moved or changed protocols.
show-ignore::
Recursively finds and lists the svn:ignore property on
@ -123,6 +128,24 @@ OPTIONS
repo-config key: svn.l
repo-config key: svn.findcopiesharder
-A<filename>::
--authors-file=<filename>::
Syntax is compatible with the files used by git-svnimport and
git-cvsimport:
------------------------------------------------------------------------
loginname = Joe User <user@example.com>
------------------------------------------------------------------------
If this option is specified and git-svn encounters an SVN
committer name that does not exist in the authors-file, git-svn
will abort operation. The user will then have to add the
appropriate entry. Re-running the previous git-svn command
after the authors-file is modified should continue operation.
repo-config key: svn.authors-file
ADVANCED OPTIONS
----------------
-b<refname>::

2
daemon.c
View File

@ -535,7 +535,7 @@ static int socksetup(int port, int **socklist_p)
if (set_reuse_addr(sockfd)) {
close(sockfd);
return 0; /* not fatal */
continue;
}
if (bind(sockfd, ai->ai_addr, ai->ai_addrlen) < 0) {

6
delta.h
View File

@ -2,11 +2,11 @@
#define DELTA_H
/* handling of delta buffers */
extern void *diff_delta(void *from_buf, unsigned long from_size,
void *to_buf, unsigned long to_size,
extern void *diff_delta(const void *from_buf, unsigned long from_size,
const void *to_buf, unsigned long to_size,
unsigned long *delta_size, unsigned long max_size);
extern void *patch_delta(void *src_buf, unsigned long src_size,
void *delta_buf, unsigned long delta_size,
const void *delta_buf, unsigned long delta_size,
unsigned long *dst_size);
/* the smallest possible delta size is 4 bytes */

4
diff-delta.c
View File

@ -131,8 +131,8 @@ static struct index ** delta_index(const unsigned char *buf,
/* the maximum size for any opcode */
#define MAX_OP_SIZE COPYOP_SIZE(0xffffffff, 0xffffffff)
void *diff_delta(void *from_buf, unsigned long from_size,
void *to_buf, unsigned long to_size,
void *diff_delta(const void *from_buf, unsigned long from_size,
const void *to_buf, unsigned long to_size,
unsigned long *delta_size,
unsigned long max_size)
{

214
diff-files.c
View File

@ -12,203 +12,43 @@ static const char diff_files_usage[] =
"git-diff-files [-q] [-0/-1/2/3 |-c|--cc] [<common diff options>] [<path>...]"
COMMON_DIFF_OPTIONS_HELP;
static struct rev_info rev;
static int silent = 0;
static int diff_unmerged_stage = 2;
static int combine_merges = 0;
static int dense_combined_merges = 0;
static void show_unmerge(const char *path)
{
diff_unmerge(&rev.diffopt, path);
}
static void show_file(int pfx, struct cache_entry *ce)
{
diff_addremove(&rev.diffopt, pfx, ntohl(ce->ce_mode),
ce->sha1, ce->name, NULL);
}
static void show_modified(int oldmode, int mode,
const unsigned char *old_sha1, const unsigned char *sha1,
char *path)
{
diff_change(&rev.diffopt, oldmode, mode, old_sha1, sha1, path, NULL);
}
int main(int argc, const char **argv)
{
const char **pathspec;
const char *prefix = setup_git_directory();
int entries, i;
struct rev_info rev;
int silent = 0;
git_config(git_diff_config);
diff_setup(&rev.diffopt);
init_revisions(&rev);
rev.abbrev = 0;
argc = setup_revisions(argc, argv, &rev, NULL);
while (1 < argc && argv[1][0] == '-') {
if (!strcmp(argv[1], "--")) {
argv++;
argc--;
break;
}
if (!strcmp(argv[1], "-0"))
diff_unmerged_stage = 0;
else if (!strcmp(argv[1], "-1"))
diff_unmerged_stage = 1;
else if (!strcmp(argv[1], "-2"))
diff_unmerged_stage = 2;
else if (!strcmp(argv[1], "-3"))
diff_unmerged_stage = 3;
else if (!strcmp(argv[1], "--base"))
diff_unmerged_stage = 1;
if (!strcmp(argv[1], "--base"))
rev.max_count = 1;
else if (!strcmp(argv[1], "--ours"))
diff_unmerged_stage = 2;
rev.max_count = 2;
else if (!strcmp(argv[1], "--theirs"))
diff_unmerged_stage = 3;
rev.max_count = 3;
else if (!strcmp(argv[1], "-q"))
silent = 1;
else if (!strcmp(argv[1], "-r"))
; /* no-op */
else if (!strcmp(argv[1], "-s"))
; /* no-op */
else if (!strcmp(argv[1], "-c"))
combine_merges = 1;
else if (!strcmp(argv[1], "--cc"))
dense_combined_merges = combine_merges = 1;
else {
int diff_opt_cnt;
diff_opt_cnt = diff_opt_parse(&rev.diffopt,
argv+1, argc-1);
if (diff_opt_cnt < 0)
usage(diff_files_usage);
else if (diff_opt_cnt) {
argv += diff_opt_cnt;
argc -= diff_opt_cnt;
continue;
}
else
usage(diff_files_usage);
}
else
usage(diff_files_usage);
argv++; argc--;
}
if (dense_combined_merges)
rev.diffopt.output_format = DIFF_FORMAT_PATCH;
/* Find the directory, and set up the pathspec */
pathspec = get_pathspec(prefix, argv + 1);
entries = read_cache();
if (diff_setup_done(&rev.diffopt) < 0)
usage(diff_files_usage);
/* At this point, if argc == 1, then we are doing everything.
* Otherwise argv[1] .. argv[argc-1] have the explicit paths.
/*
* Make sure there are NO revision (i.e. pending object) parameter,
* rev.max_count is reasonable (0 <= n <= 3),
* there is no other revision filtering parameters.
*/
if (entries < 0) {
perror("read_cache");
exit(1);
}
for (i = 0; i < entries; i++) {
struct stat st;
unsigned int oldmode, newmode;
struct cache_entry *ce = active_cache[i];
int changed;
if (!ce_path_match(ce, pathspec))
continue;
if (ce_stage(ce)) {
struct {
struct combine_diff_path p;
struct combine_diff_parent filler[5];
} combine;
int num_compare_stages = 0;
combine.p.next = NULL;
combine.p.len = ce_namelen(ce);
combine.p.path = xmalloc(combine.p.len + 1);
memcpy(combine.p.path, ce->name, combine.p.len);
combine.p.path[combine.p.len] = 0;
combine.p.mode = 0;
memset(combine.p.sha1, 0, 20);
memset(&combine.p.parent[0], 0,
sizeof(combine.filler));
while (i < entries) {
struct cache_entry *nce = active_cache[i];
int stage;
if (strcmp(ce->name, nce->name))
break;
/* Stage #2 (ours) is the first parent,
* stage #3 (theirs) is the second.
*/
stage = ce_stage(nce);
if (2 <= stage) {
int mode = ntohl(nce->ce_mode);
num_compare_stages++;
memcpy(combine.p.parent[stage-2].sha1,
nce->sha1, 20);
combine.p.parent[stage-2].mode =
canon_mode(mode);
combine.p.parent[stage-2].status =
DIFF_STATUS_MODIFIED;
}
/* diff against the proper unmerged stage */
if (stage == diff_unmerged_stage)
ce = nce;
i++;
}
/*
* Compensate for loop update
*/
i--;
if (combine_merges && num_compare_stages == 2) {
show_combined_diff(&combine.p, 2,
dense_combined_merges,
&rev);
free(combine.p.path);
continue;
}
free(combine.p.path);
/*
* Show the diff for the 'ce' if we found the one
* from the desired stage.
*/
show_unmerge(ce->name);
if (ce_stage(ce) != diff_unmerged_stage)
continue;
}
if (lstat(ce->name, &st) < 0) {
if (errno != ENOENT && errno != ENOTDIR) {
perror(ce->name);
continue;
}
if (silent)
continue;
show_file('-', ce);
continue;
}
changed = ce_match_stat(ce, &st, 0);
if (!changed && !rev.diffopt.find_copies_harder)
continue;
oldmode = ntohl(ce->ce_mode);
newmode = canon_mode(st.st_mode);
if (!trust_executable_bit &&
S_ISREG(newmode) && S_ISREG(oldmode) &&
((newmode ^ oldmode) == 0111))
newmode = oldmode;
show_modified(oldmode, newmode,
ce->sha1, (changed ? null_sha1 : ce->sha1),
ce->name);
}
diffcore_std(&rev.diffopt);
diff_flush(&rev.diffopt);
return 0;
if (rev.pending_objects ||
rev.min_age != -1 || rev.max_age != -1)
usage(diff_files_usage);
/*
* Backward compatibility wart - "diff-files -s" used to
* defeat the common diff option "-s" which asked for
* DIFF_FORMAT_NO_OUTPUT.
*/
if (rev.diffopt.output_format == DIFF_FORMAT_NO_OUTPUT)
rev.diffopt.output_format = DIFF_FORMAT_RAW;
return run_diff_files(&rev, silent);
}

251
diff-index.c
View File

@ -1,166 +1,7 @@
#include "cache.h"
#include "tree.h"
#include "diff.h"
static int cached_only = 0;
static int match_nonexisting = 0;
static struct diff_options diff_options;
/* A file entry went away or appeared */
static void show_file(const char *prefix,
struct cache_entry *ce,
unsigned char *sha1, unsigned int mode)
{
diff_addremove(&diff_options, prefix[0], ntohl(mode),
sha1, ce->name, NULL);
}
static int get_stat_data(struct cache_entry *ce,
unsigned char ** sha1p, unsigned int *modep)
{
unsigned char *sha1 = ce->sha1;
unsigned int mode = ce->ce_mode;
if (!cached_only) {
static unsigned char no_sha1[20];
int changed;
struct stat st;
if (lstat(ce->name, &st) < 0) {
if (errno == ENOENT && match_nonexisting) {
*sha1p = sha1;
*modep = mode;
return 0;
}
return -1;
}
changed = ce_match_stat(ce, &st, 0);
if (changed) {
mode = create_ce_mode(st.st_mode);
if (!trust_executable_bit && S_ISREG(st.st_mode))
mode = ce->ce_mode;
sha1 = no_sha1;
}
}
*sha1p = sha1;
*modep = mode;
return 0;
}
static void show_new_file(struct cache_entry *new)
{
unsigned char *sha1;
unsigned int mode;
/* New file in the index: it might actually be different in
* the working copy.
*/
if (get_stat_data(new, &sha1, &mode) < 0)
return;
show_file("+", new, sha1, mode);
}
static int show_modified(struct cache_entry *old,
struct cache_entry *new,
int report_missing)
{
unsigned int mode, oldmode;
unsigned char *sha1;
if (get_stat_data(new, &sha1, &mode) < 0) {
if (report_missing)
show_file("-", old, old->sha1, old->ce_mode);
return -1;
}
oldmode = old->ce_mode;
if (mode == oldmode && !memcmp(sha1, old->sha1, 20) &&
!diff_options.find_copies_harder)
return 0;
mode = ntohl(mode);
oldmode = ntohl(oldmode);
diff_change(&diff_options, oldmode, mode,
old->sha1, sha1, old->name, NULL);
return 0;
}
static int diff_cache(struct cache_entry **ac, int entries, const char **pathspec)
{
while (entries) {
struct cache_entry *ce = *ac;
int same = (entries > 1) && ce_same_name(ce, ac[1]);
if (!ce_path_match(ce, pathspec))
goto skip_entry;
switch (ce_stage(ce)) {
case 0:
/* No stage 1 entry? That means it's a new file */
if (!same) {
show_new_file(ce);
break;
}
/* Show difference between old and new */
show_modified(ac[1], ce, 1);
break;
case 1:
/* No stage 3 (merge) entry? That means it's been deleted */
if (!same) {
show_file("-", ce, ce->sha1, ce->ce_mode);
break;
}
/* We come here with ce pointing at stage 1
* (original tree) and ac[1] pointing at stage
* 3 (unmerged). show-modified with
* report-missing set to false does not say the
* file is deleted but reports true if work
* tree does not have it, in which case we
* fall through to report the unmerged state.
* Otherwise, we show the differences between
* the original tree and the work tree.
*/
if (!cached_only && !show_modified(ce, ac[1], 0))
break;
/* fallthru */
case 3:
diff_unmerge(&diff_options, ce->name);
break;
default:
die("impossible cache entry stage");
}
skip_entry:
/*
* Ignore all the different stages for this file,
* we've handled the relevant cases now.
*/
do {
ac++;
entries--;
} while (entries && ce_same_name(ce, ac[0]));
}
return 0;
}
/*
* This turns all merge entries into "stage 3". That guarantees that
* when we read in the new tree (into "stage 1"), we won't lose sight
* of the fact that we had unmerged entries.
*/
static void mark_merge_entries(void)
{
int i;
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
if (!ce_stage(ce))
continue;
ce->ce_flags |= htons(CE_STAGEMASK);
}
}
#include "commit.h"
#include "revision.h"
static const char diff_cache_usage[] =
"git-diff-index [-m] [--cached] "
@ -169,85 +10,29 @@ COMMON_DIFF_OPTIONS_HELP;
int main(int argc, const char **argv)
{
const char *tree_name = NULL;
unsigned char sha1[20];
const char *prefix = setup_git_directory();
const char **pathspec = NULL;
struct tree *tree;
int ret;
int allow_options = 1;
struct rev_info rev;
int cached = 0;
int i;
git_config(git_diff_config);
diff_setup(&diff_options);
init_revisions(&rev);
rev.abbrev = 0;
argc = setup_revisions(argc, argv, &rev, NULL);
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
int diff_opt_cnt;
if (!allow_options || *arg != '-') {
if (tree_name)
break;
tree_name = arg;
continue;
}
if (!strcmp(arg, "--")) {
allow_options = 0;
continue;
}
if (!strcmp(arg, "-r")) {
/* We accept the -r flag just to look like git-diff-tree */
continue;
}
if (!strcmp(arg, "--cc"))
/*
* I _think_ "diff-index --cached HEAD" with an
* unmerged index could show something else
* later, but pretend --cc is the same as -p for
* now. "git diff" uses --cc by default.
*/
argv[i] = arg = "-p";
diff_opt_cnt = diff_opt_parse(&diff_options, argv + i,
argc - i);
if (diff_opt_cnt < 0)
if (!strcmp(arg, "--cached"))
cached = 1;
else
usage(diff_cache_usage);
else if (diff_opt_cnt) {
i += diff_opt_cnt - 1;
continue;
}
if (!strcmp(arg, "-m")) {
match_nonexisting = 1;
continue;
}
if (!strcmp(arg, "--cached")) {
cached_only = 1;
continue;
}
usage(diff_cache_usage);
}
pathspec = get_pathspec(prefix, argv + i);
if (diff_setup_done(&diff_options) < 0)
/*
* Make sure there is one revision (i.e. pending object),
* and there is no revision filtering parameters.
*/
if (!rev.pending_objects || rev.pending_objects->next ||
rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1)
usage(diff_cache_usage);
if (!tree_name || get_sha1(tree_name, sha1))
usage(diff_cache_usage);
read_cache();
mark_merge_entries();
tree = parse_tree_indirect(sha1);
if (!tree)
die("bad tree object %s", tree_name);
if (read_tree(tree, 1, pathspec))
die("unable to read tree object %s", tree_name);
ret = diff_cache(active_cache, active_nr, pathspec);
diffcore_std(&diff_options);
diff_flush(&diff_options);
return ret;
return run_diff_index(&rev, cached);
}

1958
diff-lib.c
View File

@ -1,1736 +1,344 @@
/*
* Copyright (C) 2005 Junio C Hamano
*/
#include <sys/types.h>
#include <sys/wait.h>
#include <signal.h>
#include "cache.h"
#include "quote.h"
#include "commit.h"
#include "diff.h"
#include "diffcore.h"
#include "xdiff-interface.h"
static int use_size_cache;
int diff_rename_limit_default = -1;
int git_diff_config(const char *var, const char *value)
{
if (!strcmp(var, "diff.renamelimit")) {
diff_rename_limit_default = git_config_int(var, value);
return 0;
}
return git_default_config(var, value);
}
static char *quote_one(const char *str)
{
int needlen;
char *xp;
if (!str)
return NULL;
needlen = quote_c_style(str, NULL, NULL, 0);
if (!needlen)
return strdup(str);
xp = xmalloc(needlen + 1);
quote_c_style(str, xp, NULL, 0);
return xp;
}
static char *quote_two(const char *one, const char *two)
{
int need_one = quote_c_style(one, NULL, NULL, 1);
int need_two = quote_c_style(two, NULL, NULL, 1);
char *xp;
if (need_one + need_two) {
if (!need_one) need_one = strlen(one);
if (!need_two) need_one = strlen(two);
xp = xmalloc(need_one + need_two + 3);
xp[0] = '"';
quote_c_style(one, xp + 1, NULL, 1);
quote_c_style(two, xp + need_one + 1, NULL, 1);
strcpy(xp + need_one + need_two + 1, "\"");
return xp;
}
need_one = strlen(one);
need_two = strlen(two);
xp = xmalloc(need_one + need_two + 1);
strcpy(xp, one);
strcpy(xp + need_one, two);
return xp;
}
static const char *external_diff(void)
{
static const char *external_diff_cmd = NULL;
static int done_preparing = 0;
if (done_preparing)
return external_diff_cmd;
external_diff_cmd = getenv("GIT_EXTERNAL_DIFF");
done_preparing = 1;
return external_diff_cmd;
}
#define TEMPFILE_PATH_LEN 50
static struct diff_tempfile {
const char *name; /* filename external diff should read from */
char hex[41];
char mode[10];
char tmp_path[TEMPFILE_PATH_LEN];
} diff_temp[2];
static int count_lines(const char *data, int size)
{
int count, ch, completely_empty = 1, nl_just_seen = 0;
count = 0;
while (0 < size--) {
ch = *data++;
if (ch == '\n') {
count++;
nl_just_seen = 1;
completely_empty = 0;
}
else {
nl_just_seen = 0;
completely_empty = 0;
}
}
if (completely_empty)
return 0;
if (!nl_just_seen)
count++; /* no trailing newline */
return count;
}
static void print_line_count(int count)
{
switch (count) {
case 0:
printf("0,0");
break;
case 1:
printf("1");
break;
default:
printf("1,%d", count);
break;
}
}
static void copy_file(int prefix, const char *data, int size)
{
int ch, nl_just_seen = 1;
while (0 < size--) {
ch = *data++;
if (nl_just_seen)
putchar(prefix);
putchar(ch);
if (ch == '\n')
nl_just_seen = 1;
else
nl_just_seen = 0;
}
if (!nl_just_seen)
printf("\n\\ No newline at end of file\n");
}
static void emit_rewrite_diff(const char *name_a,
const char *name_b,
struct diff_filespec *one,
struct diff_filespec *two)
{
int lc_a, lc_b;
diff_populate_filespec(one, 0);
diff_populate_filespec(two, 0);
lc_a = count_lines(one->data, one->size);
lc_b = count_lines(two->data, two->size);
printf("--- %s\n+++ %s\n@@ -", name_a, name_b);
print_line_count(lc_a);
printf(" +");
print_line_count(lc_b);
printf(" @@\n");
if (lc_a)
copy_file('-', one->data, one->size);
if (lc_b)
copy_file('+', two->data, two->size);
}
static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
{
if (!DIFF_FILE_VALID(one)) {
mf->ptr = ""; /* does not matter */
mf->size = 0;
return 0;
}
else if (diff_populate_filespec(one, 0))
return -1;
mf->ptr = one->data;
mf->size = one->size;
return 0;
}
struct emit_callback {
const char **label_path;
};
static int fn_out(void *priv, mmbuffer_t *mb, int nbuf)
{
int i;
struct emit_callback *ecbdata = priv;
if (ecbdata->label_path[0]) {
printf("--- %s\n", ecbdata->label_path[0]);
printf("+++ %s\n", ecbdata->label_path[1]);
ecbdata->label_path[0] = ecbdata->label_path[1] = NULL;
}
for (i = 0; i < nbuf; i++)
if (!fwrite(mb[i].ptr, mb[i].size, 1, stdout))
return -1;
return 0;
}
struct diffstat_t {
struct xdiff_emit_state xm;
int nr;
int alloc;
struct diffstat_file {
char *name;
unsigned is_unmerged:1;
unsigned is_binary:1;
unsigned int added, deleted;
} **files;
};
static struct diffstat_file *diffstat_add(struct diffstat_t *diffstat,
const char *name)
{
struct diffstat_file *x;
x = xcalloc(sizeof (*x), 1);
if (diffstat->nr == diffstat->alloc) {
diffstat->alloc = alloc_nr(diffstat->alloc);
diffstat->files = xrealloc(diffstat->files,
diffstat->alloc * sizeof(x));
}
diffstat->files[diffstat->nr++] = x;
x->name = strdup(name);
return x;
}
static void diffstat_consume(void *priv, char *line, unsigned long len)
{
struct diffstat_t *diffstat = priv;
struct diffstat_file *x = diffstat->files[diffstat->nr - 1];
if (line[0] == '+')
x->added++;
else if (line[0] == '-')
x->deleted++;
}
static const char pluses[] = "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++";
static const char minuses[]= "----------------------------------------------------------------------";
static void show_stats(struct diffstat_t* data)
{
char *prefix = "";
int i, len, add, del, total, adds = 0, dels = 0;
int max, max_change = 0, max_len = 0;
int total_files = data->nr;
if (data->nr == 0)
return;
for (i = 0; i < data->nr; i++) {
struct diffstat_file *file = data->files[i];
len = strlen(file->name);
if (max_len < len)
max_len = len;
if (file->is_binary || file->is_unmerged)
continue;
if (max_change < file->added + file->deleted)
max_change = file->added + file->deleted;
}
for (i = 0; i < data->nr; i++) {
char *name = data->files[i]->name;
int added = data->files[i]->added;
int deleted = data->files[i]->deleted;
if (0 < (len = quote_c_style(name, NULL, NULL, 0))) {
char *qname = xmalloc(len + 1);
quote_c_style(name, qname, NULL, 0);
free(name);
data->files[i]->name = name = qname;
}
/*
* "scale" the filename
*/
len = strlen(name);
max = max_len;
if (max > 50)
max = 50;
if (len > max) {
char *slash;
prefix = "...";
max -= 3;
name += len - max;
slash = strchr(name, '/');
if (slash)
name = slash;
}
len = max;
/*
* scale the add/delete
*/
max = max_change;
if (max + len > 70)
max = 70 - len;
if (data->files[i]->is_binary) {
printf(" %s%-*s | Bin\n", prefix, len, name);
goto free_diffstat_file;
}
else if (data->files[i]->is_unmerged) {
printf(" %s%-*s | Unmerged\n", prefix, len, name);
goto free_diffstat_file;
}
else if (added + deleted == 0) {
total_files--;
goto free_diffstat_file;
}
add = added;
del = deleted;
total = add + del;
adds += add;
dels += del;
if (max_change > 0) {
total = (total * max + max_change / 2) / max_change;
add = (add * max + max_change / 2) / max_change;
del = total - add;
}
printf(" %s%-*s |%5d %.*s%.*s\n", prefix,
len, name, added + deleted,
add, pluses, del, minuses);
free_diffstat_file:
free(data->files[i]->name);
free(data->files[i]);
}
free(data->files);
printf(" %d files changed, %d insertions(+), %d deletions(-)\n",
total_files, adds, dels);
}
#define FIRST_FEW_BYTES 8000
static int mmfile_is_binary(mmfile_t *mf)
{
long sz = mf->size;
if (FIRST_FEW_BYTES < sz)
sz = FIRST_FEW_BYTES;
if (memchr(mf->ptr, 0, sz))
return 1;
return 0;
}
static void builtin_diff(const char *name_a,
const char *name_b,
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
int complete_rewrite)
{
mmfile_t mf1, mf2;
const char *lbl[2];
char *a_one, *b_two;
a_one = quote_two("a/", name_a);
b_two = quote_two("b/", name_b);
lbl[0] = DIFF_FILE_VALID(one) ? a_one : "/dev/null";
lbl[1] = DIFF_FILE_VALID(two) ? b_two : "/dev/null";
printf("diff --git %s %s\n", a_one, b_two);
if (lbl[0][0] == '/') {
/* /dev/null */
printf("new file mode %06o\n", two->mode);
if (xfrm_msg && xfrm_msg[0])
puts(xfrm_msg);
}
else if (lbl[1][0] == '/') {
printf("deleted file mode %06o\n", one->mode);
if (xfrm_msg && xfrm_msg[0])
puts(xfrm_msg);
}
else {
if (one->mode != two->mode) {
printf("old mode %06o\n", one->mode);
printf("new mode %06o\n", two->mode);
}
if (xfrm_msg && xfrm_msg[0])
puts(xfrm_msg);
/*
* we do not run diff between different kind
* of objects.
*/
if ((one->mode ^ two->mode) & S_IFMT)
goto free_ab_and_return;
if (complete_rewrite) {
emit_rewrite_diff(name_a, name_b, one, two);
goto free_ab_and_return;
}
}
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
if (mmfile_is_binary(&mf1) || mmfile_is_binary(&mf2))
printf("Binary files %s and %s differ\n", lbl[0], lbl[1]);
else {
/* Crazy xdl interfaces.. */
const char *diffopts = getenv("GIT_DIFF_OPTS");
xpparam_t xpp;
xdemitconf_t xecfg;
xdemitcb_t ecb;
struct emit_callback ecbdata;
ecbdata.label_path = lbl;
xpp.flags = XDF_NEED_MINIMAL;
xecfg.ctxlen = 3;
xecfg.flags = XDL_EMIT_FUNCNAMES;
if (!diffopts)
;
else if (!strncmp(diffopts, "--unified=", 10))
xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10);
else if (!strncmp(diffopts, "-u", 2))
xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10);
ecb.outf = fn_out;
ecb.priv = &ecbdata;
xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
}
free_ab_and_return:
free(a_one);
free(b_two);
return;
}
static void builtin_diffstat(const char *name_a, const char *name_b,
struct diff_filespec *one, struct diff_filespec *two,
struct diffstat_t *diffstat)
{
mmfile_t mf1, mf2;
struct diffstat_file *data;
data = diffstat_add(diffstat, name_a ? name_a : name_b);
if (!one || !two) {
data->is_unmerged = 1;
return;
}
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
if (mmfile_is_binary(&mf1) || mmfile_is_binary(&mf2))
data->is_binary = 1;
else {
/* Crazy xdl interfaces.. */
xpparam_t xpp;
xdemitconf_t xecfg;
xdemitcb_t ecb;
xpp.flags = XDF_NEED_MINIMAL;
xecfg.ctxlen = 0;
xecfg.flags = 0;
ecb.outf = xdiff_outf;
ecb.priv = diffstat;
xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
}
}
struct diff_filespec *alloc_filespec(const char *path)
{
int namelen = strlen(path);
struct diff_filespec *spec = xmalloc(sizeof(*spec) + namelen + 1);
memset(spec, 0, sizeof(*spec));
spec->path = (char *)(spec + 1);
memcpy(spec->path, path, namelen+1);
return spec;
}
void fill_filespec(struct diff_filespec *spec, const unsigned char *sha1,
unsigned short mode)
{
if (mode) {
spec->mode = canon_mode(mode);
memcpy(spec->sha1, sha1, 20);
spec->sha1_valid = !!memcmp(sha1, null_sha1, 20);
}
}
#include "revision.h"
/*
* Given a name and sha1 pair, if the dircache tells us the file in
* the work tree has that object contents, return true, so that
* prepare_temp_file() does not have to inflate and extract.
* diff-files
*/
static int work_tree_matches(const char *name, const unsigned char *sha1)
int run_diff_files(struct rev_info *revs, int silent_on_removed)
{
struct cache_entry *ce;
struct stat st;
int pos, len;
int entries, i;
int diff_unmerged_stage = revs->max_count;
/* We do not read the cache ourselves here, because the
* benchmark with my previous version that always reads cache
* shows that it makes things worse for diff-tree comparing
* two linux-2.6 kernel trees in an already checked out work
* tree. This is because most diff-tree comparisons deal with
* only a small number of files, while reading the cache is
* expensive for a large project, and its cost outweighs the
* savings we get by not inflating the object to a temporary
* file. Practically, this code only helps when we are used
* by diff-cache --cached, which does read the cache before
* calling us.
*/
if (!active_cache)
return 0;
len = strlen(name);
pos = cache_name_pos(name, len);
if (pos < 0)
return 0;
ce = active_cache[pos];
if ((lstat(name, &st) < 0) ||
!S_ISREG(st.st_mode) || /* careful! */
ce_match_stat(ce, &st, 0) ||
memcmp(sha1, ce->sha1, 20))
return 0;
/* we return 1 only when we can stat, it is a regular file,
* stat information matches, and sha1 recorded in the cache
* matches. I.e. we know the file in the work tree really is
* the same as the <name, sha1> pair.
*/
return 1;
}
static struct sha1_size_cache {
unsigned char sha1[20];
unsigned long size;
} **sha1_size_cache;
static int sha1_size_cache_nr, sha1_size_cache_alloc;
static struct sha1_size_cache *locate_size_cache(unsigned char *sha1,
int find_only,
unsigned long size)
{
int first, last;
struct sha1_size_cache *e;
first = 0;
last = sha1_size_cache_nr;
while (last > first) {
int cmp, next = (last + first) >> 1;
e = sha1_size_cache[next];
cmp = memcmp(e->sha1, sha1, 20);
if (!cmp)
return e;
if (cmp < 0) {
last = next;
continue;
}
first = next+1;
}
/* not found */
if (find_only)
return NULL;
/* insert to make it at "first" */
if (sha1_size_cache_alloc <= sha1_size_cache_nr) {
sha1_size_cache_alloc = alloc_nr(sha1_size_cache_alloc);
sha1_size_cache = xrealloc(sha1_size_cache,
sha1_size_cache_alloc *
sizeof(*sha1_size_cache));
}
sha1_size_cache_nr++;
if (first < sha1_size_cache_nr)
memmove(sha1_size_cache + first + 1, sha1_size_cache + first,
(sha1_size_cache_nr - first - 1) *
sizeof(*sha1_size_cache));
e = xmalloc(sizeof(struct sha1_size_cache));
sha1_size_cache[first] = e;
memcpy(e->sha1, sha1, 20);
e->size = size;
return e;
}
/*
* While doing rename detection and pickaxe operation, we may need to
* grab the data for the blob (or file) for our own in-core comparison.
* diff_filespec has data and size fields for this purpose.
*/
int diff_populate_filespec(struct diff_filespec *s, int size_only)
{
int err = 0;
if (!DIFF_FILE_VALID(s))
die("internal error: asking to populate invalid file.");
if (S_ISDIR(s->mode))
if (diff_unmerged_stage < 0)
diff_unmerged_stage = 2;
entries = read_cache();
if (entries < 0) {
perror("read_cache");
return -1;
if (!use_size_cache)
size_only = 0;
if (s->data)
return err;
if (!s->sha1_valid ||
work_tree_matches(s->path, s->sha1)) {
}
for (i = 0; i < entries; i++) {
struct stat st;
int fd;
if (lstat(s->path, &st) < 0) {
if (errno == ENOENT) {
err_empty:
err = -1;
empty:
s->data = "";
s->size = 0;
return err;
}
}
s->size = st.st_size;
if (!s->size)
goto empty;
if (size_only)
return 0;
if (S_ISLNK(st.st_mode)) {
int ret;
s->data = xmalloc(s->size);
s->should_free = 1;
ret = readlink(s->path, s->data, s->size);
if (ret < 0) {
free(s->data);
goto err_empty;
}
return 0;
}
fd = open(s->path, O_RDONLY);
if (fd < 0)
goto err_empty;
s->data = mmap(NULL, s->size, PROT_READ, MAP_PRIVATE, fd, 0);
close(fd);
if (s->data == MAP_FAILED)
goto err_empty;
s->should_munmap = 1;
}
else {
char type[20];
struct sha1_size_cache *e;
unsigned int oldmode, newmode;
struct cache_entry *ce = active_cache[i];
int changed;
if (size_only) {
e = locate_size_cache(s->sha1, 1, 0);
if (e) {
s->size = e->size;
return 0;
}
if (!sha1_object_info(s->sha1, type, &s->size))
locate_size_cache(s->sha1, 0, s->size);
}
else {
s->data = read_sha1_file(s->sha1, type, &s->size);
s->should_free = 1;
}
}
return 0;
}
void diff_free_filespec_data(struct diff_filespec *s)
{
if (s->should_free)
free(s->data);
else if (s->should_munmap)
munmap(s->data, s->size);
s->should_free = s->should_munmap = 0;
s->data = NULL;
free(s->cnt_data);
s->cnt_data = NULL;
}
static void prep_temp_blob(struct diff_tempfile *temp,
void *blob,
unsigned long size,
const unsigned char *sha1,
int mode)
{
int fd;
fd = git_mkstemp(temp->tmp_path, TEMPFILE_PATH_LEN, ".diff_XXXXXX");
if (fd < 0)
die("unable to create temp-file");
if (write(fd, blob, size) != size)
die("unable to write temp-file");
close(fd);
temp->name = temp->tmp_path;
strcpy(temp->hex, sha1_to_hex(sha1));
temp->hex[40] = 0;
sprintf(temp->mode, "%06o", mode);
}
static void prepare_temp_file(const char *name,
struct diff_tempfile *temp,
struct diff_filespec *one)
{
if (!DIFF_FILE_VALID(one)) {
not_a_valid_file:
/* A '-' entry produces this for file-2, and
* a '+' entry produces this for file-1.
*/
temp->name = "/dev/null";
strcpy(temp->hex, ".");
strcpy(temp->mode, ".");
return;
}
if (!one->sha1_valid ||
work_tree_matches(name, one->sha1)) {
struct stat st;
if (lstat(name, &st) < 0) {
if (errno == ENOENT)
goto not_a_valid_file;
die("stat(%s): %s", name, strerror(errno));
}
if (S_ISLNK(st.st_mode)) {
int ret;
char buf[PATH_MAX + 1]; /* ought to be SYMLINK_MAX */
if (sizeof(buf) <= st.st_size)
die("symlink too long: %s", name);
ret = readlink(name, buf, st.st_size);
if (ret < 0)
die("readlink(%s)", name);
prep_temp_blob(temp, buf, st.st_size,
(one->sha1_valid ?
one->sha1 : null_sha1),
(one->sha1_valid ?
one->mode : S_IFLNK));
}
else {
/* we can borrow from the file in the work tree */
temp->name = name;
if (!one->sha1_valid)
strcpy(temp->hex, sha1_to_hex(null_sha1));
else
strcpy(temp->hex, sha1_to_hex(one->sha1));
/* Even though we may sometimes borrow the
* contents from the work tree, we always want
* one->mode. mode is trustworthy even when
* !(one->sha1_valid), as long as
* DIFF_FILE_VALID(one).
*/
sprintf(temp->mode, "%06o", one->mode);
}
return;
}
else {
if (diff_populate_filespec(one, 0))
die("cannot read data blob for %s", one->path);
prep_temp_blob(temp, one->data, one->size,
one->sha1, one->mode);
}
}
static void remove_tempfile(void)
{
int i;
for (i = 0; i < 2; i++)
if (diff_temp[i].name == diff_temp[i].tmp_path) {
unlink(diff_temp[i].name);
diff_temp[i].name = NULL;
}
}
static void remove_tempfile_on_signal(int signo)
{
remove_tempfile();
signal(SIGINT, SIG_DFL);
raise(signo);
}
static int spawn_prog(const char *pgm, const char **arg)
{
pid_t pid;
int status;
fflush(NULL);
pid = fork();
if (pid < 0)
die("unable to fork");
if (!pid) {
execvp(pgm, (char *const*) arg);
exit(255);
}
while (waitpid(pid, &status, 0) < 0) {
if (errno == EINTR)
if (!ce_path_match(ce, revs->prune_data))
continue;
return -1;
}
/* Earlier we did not check the exit status because
* diff exits non-zero if files are different, and
* we are not interested in knowing that. It was a
* mistake which made it harder to quit a diff-*
* session that uses the git-apply-patch-script as
* the GIT_EXTERNAL_DIFF. A custom GIT_EXTERNAL_DIFF
* should also exit non-zero only when it wants to
* abort the entire diff-* session.
*/
if (WIFEXITED(status) && !WEXITSTATUS(status))
return 0;
return -1;
}
if (ce_stage(ce)) {
struct {
struct combine_diff_path p;
struct combine_diff_parent filler[5];
} combine;
int num_compare_stages = 0;
/* An external diff command takes:
*
* diff-cmd name infile1 infile1-sha1 infile1-mode \
* infile2 infile2-sha1 infile2-mode [ rename-to ]
*
*/
static void run_external_diff(const char *pgm,
const char *name,
const char *other,
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
int complete_rewrite)
{
const char *spawn_arg[10];
struct diff_tempfile *temp = diff_temp;
int retval;
static int atexit_asked = 0;
const char *othername;
const char **arg = &spawn_arg[0];
combine.p.next = NULL;
combine.p.len = ce_namelen(ce);
combine.p.path = xmalloc(combine.p.len + 1);
memcpy(combine.p.path, ce->name, combine.p.len);
combine.p.path[combine.p.len] = 0;
combine.p.mode = 0;
memset(combine.p.sha1, 0, 20);
memset(&combine.p.parent[0], 0,
sizeof(combine.filler));
othername = (other? other : name);
if (one && two) {
prepare_temp_file(name, &temp[0], one);
prepare_temp_file(othername, &temp[1], two);
if (! atexit_asked &&
(temp[0].name == temp[0].tmp_path ||
temp[1].name == temp[1].tmp_path)) {
atexit_asked = 1;
atexit(remove_tempfile);
}
signal(SIGINT, remove_tempfile_on_signal);
}
while (i < entries) {
struct cache_entry *nce = active_cache[i];
int stage;
if (one && two) {
*arg++ = pgm;
*arg++ = name;
*arg++ = temp[0].name;
*arg++ = temp[0].hex;
*arg++ = temp[0].mode;
*arg++ = temp[1].name;
*arg++ = temp[1].hex;
*arg++ = temp[1].mode;
if (other) {
*arg++ = other;
*arg++ = xfrm_msg;
}
} else {
*arg++ = pgm;
*arg++ = name;
}
*arg = NULL;
retval = spawn_prog(pgm, spawn_arg);
remove_tempfile();
if (retval) {
fprintf(stderr, "external diff died, stopping at %s.\n", name);
exit(1);
}
}
if (strcmp(ce->name, nce->name))
break;
static void run_diff_cmd(const char *pgm,
const char *name,
const char *other,
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
int complete_rewrite)
{
if (pgm) {
run_external_diff(pgm, name, other, one, two, xfrm_msg,
complete_rewrite);
return;
}
if (one && two)
builtin_diff(name, other ? other : name,
one, two, xfrm_msg, complete_rewrite);
else
printf("* Unmerged path %s\n", name);
}
/* Stage #2 (ours) is the first parent,
* stage #3 (theirs) is the second.
*/
stage = ce_stage(nce);
if (2 <= stage) {
int mode = ntohl(nce->ce_mode);
num_compare_stages++;
memcpy(combine.p.parent[stage-2].sha1,
nce->sha1, 20);
combine.p.parent[stage-2].mode =
canon_mode(mode);
combine.p.parent[stage-2].status =
DIFF_STATUS_MODIFIED;
}
static void diff_fill_sha1_info(struct diff_filespec *one)
{
if (DIFF_FILE_VALID(one)) {
if (!one->sha1_valid) {
struct stat st;
if (lstat(one->path, &st) < 0)
die("stat %s", one->path);
if (index_path(one->sha1, one->path, &st, 0))
die("cannot hash %s\n", one->path);
}
}
else
memset(one->sha1, 0, 20);
}
static void run_diff(struct diff_filepair *p, struct diff_options *o)
{
const char *pgm = external_diff();
char msg[PATH_MAX*2+300], *xfrm_msg;
struct diff_filespec *one;
struct diff_filespec *two;
const char *name;
const char *other;
char *name_munged, *other_munged;
int complete_rewrite = 0;
int len;
if (DIFF_PAIR_UNMERGED(p)) {
/* unmerged */
run_diff_cmd(pgm, p->one->path, NULL, NULL, NULL, NULL, 0);
return;
}
name = p->one->path;
other = (strcmp(name, p->two->path) ? p->two->path : NULL);
name_munged = quote_one(name);
other_munged = quote_one(other);
one = p->one; two = p->two;
diff_fill_sha1_info(one);
diff_fill_sha1_info(two);
len = 0;
switch (p->status) {
case DIFF_STATUS_COPIED:
len += snprintf(msg + len, sizeof(msg) - len,
"similarity index %d%%\n"
"copy from %s\n"
"copy to %s\n",
(int)(0.5 + p->score * 100.0/MAX_SCORE),
name_munged, other_munged);
break;
case DIFF_STATUS_RENAMED:
len += snprintf(msg + len, sizeof(msg) - len,
"similarity index %d%%\n"
"rename from %s\n"
"rename to %s\n",
(int)(0.5 + p->score * 100.0/MAX_SCORE),
name_munged, other_munged);
break;
case DIFF_STATUS_MODIFIED:
if (p->score) {
len += snprintf(msg + len, sizeof(msg) - len,
"dissimilarity index %d%%\n",
(int)(0.5 + p->score *
100.0/MAX_SCORE));
complete_rewrite = 1;
break;
}
/* fallthru */
default:
/* nothing */
;
}
if (memcmp(one->sha1, two->sha1, 20)) {
char one_sha1[41];
int abbrev = o->full_index ? 40 : DEFAULT_ABBREV;
memcpy(one_sha1, sha1_to_hex(one->sha1), 41);
len += snprintf(msg + len, sizeof(msg) - len,
"index %.*s..%.*s",
abbrev, one_sha1, abbrev,
sha1_to_hex(two->sha1));
if (one->mode == two->mode)
len += snprintf(msg + len, sizeof(msg) - len,
" %06o", one->mode);
len += snprintf(msg + len, sizeof(msg) - len, "\n");
}
if (len)
msg[--len] = 0;
xfrm_msg = len ? msg : NULL;
if (!pgm &&
DIFF_FILE_VALID(one) && DIFF_FILE_VALID(two) &&
(S_IFMT & one->mode) != (S_IFMT & two->mode)) {
/* a filepair that changes between file and symlink
* needs to be split into deletion and creation.
*/
struct diff_filespec *null = alloc_filespec(two->path);
run_diff_cmd(NULL, name, other, one, null, xfrm_msg, 0);
free(null);
null = alloc_filespec(one->path);
run_diff_cmd(NULL, name, other, null, two, xfrm_msg, 0);
free(null);
}
else
run_diff_cmd(pgm, name, other, one, two, xfrm_msg,
complete_rewrite);
free(name_munged);
free(other_munged);
}
static void run_diffstat(struct diff_filepair *p, struct diff_options *o,
struct diffstat_t *diffstat)
{
const char *name;
const char *other;
if (DIFF_PAIR_UNMERGED(p)) {
/* unmerged */
builtin_diffstat(p->one->path, NULL, NULL, NULL, diffstat);
return;
}
name = p->one->path;
other = (strcmp(name, p->two->path) ? p->two->path : NULL);
diff_fill_sha1_info(p->one);
diff_fill_sha1_info(p->two);
builtin_diffstat(name, other, p->one, p->two, diffstat);
}
void diff_setup(struct diff_options *options)
{
memset(options, 0, sizeof(*options));
options->output_format = DIFF_FORMAT_RAW;
options->line_termination = '\n';
options->break_opt = -1;
options->rename_limit = -1;
options->change = diff_change;
options->add_remove = diff_addremove;
}
int diff_setup_done(struct diff_options *options)
{
if ((options->find_copies_harder &&
options->detect_rename != DIFF_DETECT_COPY) ||
(0 <= options->rename_limit && !options->detect_rename))
return -1;
/*
* These cases always need recursive; we do not drop caller-supplied
* recursive bits for other formats here.
*/
if ((options->output_format == DIFF_FORMAT_PATCH) ||
(options->output_format == DIFF_FORMAT_DIFFSTAT))
options->recursive = 1;
if (options->detect_rename && options->rename_limit < 0)
options->rename_limit = diff_rename_limit_default;
if (options->setup & DIFF_SETUP_USE_CACHE) {
if (!active_cache)
/* read-cache does not die even when it fails
* so it is safe for us to do this here. Also
* it does not smudge active_cache or active_nr
* when it fails, so we do not have to worry about
* cleaning it up ourselves either.
*/
read_cache();
}
if (options->setup & DIFF_SETUP_USE_SIZE_CACHE)
use_size_cache = 1;
if (options->abbrev <= 0 || 40 < options->abbrev)
options->abbrev = 40; /* full */
return 0;
}
int diff_opt_parse(struct diff_options *options, const char **av, int ac)
{
const char *arg = av[0];
if (!strcmp(arg, "-p") || !strcmp(arg, "-u"))
options->output_format = DIFF_FORMAT_PATCH;
else if (!strcmp(arg, "--patch-with-raw")) {
options->output_format = DIFF_FORMAT_PATCH;
options->with_raw = 1;
}
else if (!strcmp(arg, "--stat"))
options->output_format = DIFF_FORMAT_DIFFSTAT;
else if (!strcmp(arg, "--patch-with-stat")) {
options->output_format = DIFF_FORMAT_PATCH;
options->with_stat = 1;
}
else if (!strcmp(arg, "-z"))
options->line_termination = 0;
else if (!strncmp(arg, "-l", 2))
options->rename_limit = strtoul(arg+2, NULL, 10);
else if (!strcmp(arg, "--full-index"))
options->full_index = 1;
else if (!strcmp(arg, "--name-only"))
options->output_format = DIFF_FORMAT_NAME;
else if (!strcmp(arg, "--name-status"))
options->output_format = DIFF_FORMAT_NAME_STATUS;
else if (!strcmp(arg, "-R"))
options->reverse_diff = 1;
else if (!strncmp(arg, "-S", 2))
options->pickaxe = arg + 2;
else if (!strcmp(arg, "-s"))
options->output_format = DIFF_FORMAT_NO_OUTPUT;
else if (!strncmp(arg, "-O", 2))
options->orderfile = arg + 2;
else if (!strncmp(arg, "--diff-filter=", 14))
options->filter = arg + 14;
else if (!strcmp(arg, "--pickaxe-all"))
options->pickaxe_opts = DIFF_PICKAXE_ALL;
else if (!strcmp(arg, "--pickaxe-regex"))
options->pickaxe_opts = DIFF_PICKAXE_REGEX;
else if (!strncmp(arg, "-B", 2)) {
if ((options->break_opt =
diff_scoreopt_parse(arg)) == -1)
return -1;
}
else if (!strncmp(arg, "-M", 2)) {
if ((options->rename_score =
diff_scoreopt_parse(arg)) == -1)
return -1;
options->detect_rename = DIFF_DETECT_RENAME;
}
else if (!strncmp(arg, "-C", 2)) {
if ((options->rename_score =
diff_scoreopt_parse(arg)) == -1)
return -1;
options->detect_rename = DIFF_DETECT_COPY;
}
else if (!strcmp(arg, "--find-copies-harder"))
options->find_copies_harder = 1;
else if (!strcmp(arg, "--abbrev"))
options->abbrev = DEFAULT_ABBREV;
else if (!strncmp(arg, "--abbrev=", 9)) {
options->abbrev = strtoul(arg + 9, NULL, 10);
if (options->abbrev < MINIMUM_ABBREV)
options->abbrev = MINIMUM_ABBREV;
else if (40 < options->abbrev)
options->abbrev = 40;
}
else
return 0;
return 1;
}
static int parse_num(const char **cp_p)
{
unsigned long num, scale;
int ch, dot;
const char *cp = *cp_p;
num = 0;
scale = 1;
dot = 0;
for(;;) {
ch = *cp;
if ( !dot && ch == '.' ) {
scale = 1;
dot = 1;
} else if ( ch == '%' ) {
scale = dot ? scale*100 : 100;
cp++; /* % is always at the end */
break;
} else if ( ch >= '0' && ch <= '9' ) {
if ( scale < 100000 ) {
scale *= 10;
num = (num*10) + (ch-'0');
/* diff against the proper unmerged stage */
if (stage == diff_unmerged_stage)
ce = nce;
i++;
}
} else {
break;
}
cp++;
}
*cp_p = cp;
/*
* Compensate for loop update
*/
i--;
/* user says num divided by scale and we say internally that
* is MAX_SCORE * num / scale.
*/
return (num >= scale) ? MAX_SCORE : (MAX_SCORE * num / scale);
}
int diff_scoreopt_parse(const char *opt)
{
int opt1, opt2, cmd;
if (*opt++ != '-')
return -1;
cmd = *opt++;
if (cmd != 'M' && cmd != 'C' && cmd != 'B')
return -1; /* that is not a -M, -C nor -B option */
opt1 = parse_num(&opt);
if (cmd != 'B')
opt2 = 0;
else {
if (*opt == 0)
opt2 = 0;
else if (*opt != '/')
return -1; /* we expect -B80/99 or -B80 */
else {
opt++;
opt2 = parse_num(&opt);
}
}
if (*opt != 0)
return -1;
return opt1 | (opt2 << 16);
}
struct diff_queue_struct diff_queued_diff;
void diff_q(struct diff_queue_struct *queue, struct diff_filepair *dp)
{
if (queue->alloc <= queue->nr) {
queue->alloc = alloc_nr(queue->alloc);
queue->queue = xrealloc(queue->queue,
sizeof(dp) * queue->alloc);
}
queue->queue[queue->nr++] = dp;
}
struct diff_filepair *diff_queue(struct diff_queue_struct *queue,
struct diff_filespec *one,
struct diff_filespec *two)
{
struct diff_filepair *dp = xmalloc(sizeof(*dp));
dp->one = one;
dp->two = two;
dp->score = 0;
dp->status = 0;
dp->source_stays = 0;
dp->broken_pair = 0;
if (queue)
diff_q(queue, dp);
return dp;
}
void diff_free_filepair(struct diff_filepair *p)
{
diff_free_filespec_data(p->one);
diff_free_filespec_data(p->two);
free(p->one);
free(p->two);
free(p);
}
/* This is different from find_unique_abbrev() in that
* it stuffs the result with dots for alignment.
*/
const char *diff_unique_abbrev(const unsigned char *sha1, int len)
{
int abblen;
const char *abbrev;
if (len == 40)
return sha1_to_hex(sha1);
abbrev = find_unique_abbrev(sha1, len);
if (!abbrev)
return sha1_to_hex(sha1);
abblen = strlen(abbrev);
if (abblen < 37) {
static char hex[41];
if (len < abblen && abblen <= len + 2)
sprintf(hex, "%s%.*s", abbrev, len+3-abblen, "..");
else
sprintf(hex, "%s...", abbrev);
return hex;
}
return sha1_to_hex(sha1);
}
static void diff_flush_raw(struct diff_filepair *p,
int line_termination,
int inter_name_termination,
struct diff_options *options,
int output_format)
{
int two_paths;
char status[10];
int abbrev = options->abbrev;
const char *path_one, *path_two;
path_one = p->one->path;
path_two = p->two->path;
if (line_termination) {
path_one = quote_one(path_one);
path_two = quote_one(path_two);
}
if (p->score)
sprintf(status, "%c%03d", p->status,
(int)(0.5 + p->score * 100.0/MAX_SCORE));
else {
status[0] = p->status;
status[1] = 0;
}
switch (p->status) {
case DIFF_STATUS_COPIED:
case DIFF_STATUS_RENAMED:
two_paths = 1;
break;
case DIFF_STATUS_ADDED:
case DIFF_STATUS_DELETED:
two_paths = 0;
break;
default:
two_paths = 0;
break;
}
if (output_format != DIFF_FORMAT_NAME_STATUS) {
printf(":%06o %06o %s ",
p->one->mode, p->two->mode,
diff_unique_abbrev(p->one->sha1, abbrev));
printf("%s ",
diff_unique_abbrev(p->two->sha1, abbrev));
}
printf("%s%c%s", status, inter_name_termination, path_one);
if (two_paths)
printf("%c%s", inter_name_termination, path_two);
putchar(line_termination);
if (path_one != p->one->path)
free((void*)path_one);
if (path_two != p->two->path)
free((void*)path_two);
}
static void diff_flush_name(struct diff_filepair *p,
int inter_name_termination,
int line_termination)
{
char *path = p->two->path;
if (line_termination)
path = quote_one(p->two->path);
else
path = p->two->path;
printf("%s%c", path, line_termination);
if (p->two->path != path)
free(path);
}
int diff_unmodified_pair(struct diff_filepair *p)
{
/* This function is written stricter than necessary to support
* the currently implemented transformers, but the idea is to
* let transformers to produce diff_filepairs any way they want,
* and filter and clean them up here before producing the output.
*/
struct diff_filespec *one, *two;
if (DIFF_PAIR_UNMERGED(p))
return 0; /* unmerged is interesting */
one = p->one;
two = p->two;
/* deletion, addition, mode or type change
* and rename are all interesting.
*/
if (DIFF_FILE_VALID(one) != DIFF_FILE_VALID(two) ||
DIFF_PAIR_MODE_CHANGED(p) ||
strcmp(one->path, two->path))
return 0;
/* both are valid and point at the same path. that is, we are
* dealing with a change.
*/
if (one->sha1_valid && two->sha1_valid &&
!memcmp(one->sha1, two->sha1, sizeof(one->sha1)))
return 1; /* no change */
if (!one->sha1_valid && !two->sha1_valid)
return 1; /* both look at the same file on the filesystem. */
return 0;
}
static void diff_flush_patch(struct diff_filepair *p, struct diff_options *o)
{
if (diff_unmodified_pair(p))
return;
if ((DIFF_FILE_VALID(p->one) && S_ISDIR(p->one->mode)) ||
(DIFF_FILE_VALID(p->two) && S_ISDIR(p->two->mode)))
return; /* no tree diffs in patch format */
run_diff(p, o);
}
static void diff_flush_stat(struct diff_filepair *p, struct diff_options *o,
struct diffstat_t *diffstat)
{
if (diff_unmodified_pair(p))
return;
if ((DIFF_FILE_VALID(p->one) && S_ISDIR(p->one->mode)) ||
(DIFF_FILE_VALID(p->two) && S_ISDIR(p->two->mode)))
return; /* no tree diffs in patch format */
run_diffstat(p, o, diffstat);
}
int diff_queue_is_empty(void)
{
struct diff_queue_struct *q = &diff_queued_diff;
int i;
for (i = 0; i < q->nr; i++)
if (!diff_unmodified_pair(q->queue[i]))
return 0;
return 1;
}
#if DIFF_DEBUG
void diff_debug_filespec(struct diff_filespec *s, int x, const char *one)
{
fprintf(stderr, "queue[%d] %s (%s) %s %06o %s\n",
x, one ? one : "",
s->path,
DIFF_FILE_VALID(s) ? "valid" : "invalid",
s->mode,
s->sha1_valid ? sha1_to_hex(s->sha1) : "");
fprintf(stderr, "queue[%d] %s size %lu flags %d\n",
x, one ? one : "",
s->size, s->xfrm_flags);
}
void diff_debug_filepair(const struct diff_filepair *p, int i)
{
diff_debug_filespec(p->one, i, "one");
diff_debug_filespec(p->two, i, "two");
fprintf(stderr, "score %d, status %c stays %d broken %d\n",
p->score, p->status ? p->status : '?',
p->source_stays, p->broken_pair);
}
void diff_debug_queue(const char *msg, struct diff_queue_struct *q)
{
int i;
if (msg)
fprintf(stderr, "%s\n", msg);
fprintf(stderr, "q->nr = %d\n", q->nr);
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
diff_debug_filepair(p, i);
}
}
#endif
static void diff_resolve_rename_copy(void)
{
int i, j;
struct diff_filepair *p, *pp;
struct diff_queue_struct *q = &diff_queued_diff;
diff_debug_queue("resolve-rename-copy", q);
for (i = 0; i < q->nr; i++) {
p = q->queue[i];
p->status = 0; /* undecided */
if (DIFF_PAIR_UNMERGED(p))
p->status = DIFF_STATUS_UNMERGED;
else if (!DIFF_FILE_VALID(p->one))
p->status = DIFF_STATUS_ADDED;
else if (!DIFF_FILE_VALID(p->two))
p->status = DIFF_STATUS_DELETED;
else if (DIFF_PAIR_TYPE_CHANGED(p))
p->status = DIFF_STATUS_TYPE_CHANGED;
/* from this point on, we are dealing with a pair
* whose both sides are valid and of the same type, i.e.
* either in-place edit or rename/copy edit.
*/
else if (DIFF_PAIR_RENAME(p)) {
if (p->source_stays) {
p->status = DIFF_STATUS_COPIED;
if (revs->combine_merges && num_compare_stages == 2) {
show_combined_diff(&combine.p, 2,
revs->dense_combined_merges,
revs);
free(combine.p.path);
continue;
}
/* See if there is some other filepair that
* copies from the same source as us. If so
* we are a copy. Otherwise we are either a
* copy if the path stays, or a rename if it
* does not, but we already handled "stays" case.
free(combine.p.path);
/*
* Show the diff for the 'ce' if we found the one
* from the desired stage.
*/
for (j = i + 1; j < q->nr; j++) {
pp = q->queue[j];
if (strcmp(pp->one->path, p->one->path))
continue; /* not us */
if (!DIFF_PAIR_RENAME(pp))
continue; /* not a rename/copy */
/* pp is a rename/copy from the same source */
p->status = DIFF_STATUS_COPIED;
break;
diff_unmerge(&revs->diffopt, ce->name);
if (ce_stage(ce) != diff_unmerged_stage)
continue;
}
if (lstat(ce->name, &st) < 0) {
if (errno != ENOENT && errno != ENOTDIR) {
perror(ce->name);
continue;
}
if (!p->status)
p->status = DIFF_STATUS_RENAMED;
}
else if (memcmp(p->one->sha1, p->two->sha1, 20) ||
p->one->mode != p->two->mode)
p->status = DIFF_STATUS_MODIFIED;
else {
/* This is a "no-change" entry and should not
* happen anymore, but prepare for broken callers.
*/
error("feeding unmodified %s to diffcore",
p->one->path);
p->status = DIFF_STATUS_UNKNOWN;
if (silent_on_removed)
continue;
diff_addremove(&revs->diffopt, '-', ntohl(ce->ce_mode),
ce->sha1, ce->name, NULL);
continue;
}
changed = ce_match_stat(ce, &st, 0);
if (!changed && !revs->diffopt.find_copies_harder)
continue;
oldmode = ntohl(ce->ce_mode);
newmode = canon_mode(st.st_mode);
if (!trust_executable_bit &&
S_ISREG(newmode) && S_ISREG(oldmode) &&
((newmode ^ oldmode) == 0111))
newmode = oldmode;
diff_change(&revs->diffopt, oldmode, newmode,
ce->sha1, (changed ? null_sha1 : ce->sha1),
ce->name, NULL);
}
diff_debug_queue("resolve-rename-copy done", q);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return 0;
}
static void flush_one_pair(struct diff_filepair *p,
int diff_output_format,
struct diff_options *options,
struct diffstat_t *diffstat)
{
int inter_name_termination = '\t';
int line_termination = options->line_termination;
if (!line_termination)
inter_name_termination = 0;
/*
* diff-index
*/
switch (p->status) {
case DIFF_STATUS_UNKNOWN:
break;
case 0:
die("internal error in diff-resolve-rename-copy");
break;
default:
switch (diff_output_format) {
case DIFF_FORMAT_DIFFSTAT:
diff_flush_stat(p, options, diffstat);
break;
case DIFF_FORMAT_PATCH:
diff_flush_patch(p, options);
break;
case DIFF_FORMAT_RAW:
case DIFF_FORMAT_NAME_STATUS:
diff_flush_raw(p, line_termination,
inter_name_termination,
options, diff_output_format);
break;
case DIFF_FORMAT_NAME:
diff_flush_name(p,
inter_name_termination,
line_termination);
break;
case DIFF_FORMAT_NO_OUTPUT:
break;
}
}
/* A file entry went away or appeared */
static void diff_index_show_file(struct rev_info *revs,
const char *prefix,
struct cache_entry *ce,
unsigned char *sha1, unsigned int mode)
{
diff_addremove(&revs->diffopt, prefix[0], ntohl(mode),
sha1, ce->name, NULL);
}
void diff_flush(struct diff_options *options)
static int get_stat_data(struct cache_entry *ce,
unsigned char **sha1p,
unsigned int *modep,
int cached, int match_missing)
{
struct diff_queue_struct *q = &diff_queued_diff;
int i;
int diff_output_format = options->output_format;
struct diffstat_t *diffstat = NULL;
unsigned char *sha1 = ce->sha1;
unsigned int mode = ce->ce_mode;
if (diff_output_format == DIFF_FORMAT_DIFFSTAT || options->with_stat) {
diffstat = xcalloc(sizeof (struct diffstat_t), 1);
diffstat->xm.consume = diffstat_consume;
}
if (options->with_raw) {
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
flush_one_pair(p, DIFF_FORMAT_RAW, options, NULL);
if (!cached) {
static unsigned char no_sha1[20];
int changed;
struct stat st;
if (lstat(ce->name, &st) < 0) {
if (errno == ENOENT && match_missing) {
*sha1p = sha1;
*modep = mode;
return 0;
}
return -1;
}
putchar(options->line_termination);
}
if (options->with_stat) {
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
flush_one_pair(p, DIFF_FORMAT_DIFFSTAT, options,
diffstat);
changed = ce_match_stat(ce, &st, 0);
if (changed) {
mode = create_ce_mode(st.st_mode);
if (!trust_executable_bit && S_ISREG(st.st_mode))
mode = ce->ce_mode;
sha1 = no_sha1;
}
show_stats(diffstat);
free(diffstat);
diffstat = NULL;
putchar(options->line_termination);
}
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
flush_one_pair(p, diff_output_format, options, diffstat);
diff_free_filepair(p);
}
if (diffstat) {
show_stats(diffstat);
free(diffstat);
}
free(q->queue);
q->queue = NULL;
q->nr = q->alloc = 0;
*sha1p = sha1;
*modep = mode;
return 0;
}
static void diffcore_apply_filter(const char *filter)
static void show_new_file(struct rev_info *revs,
struct cache_entry *new,
int cached, int match_missing)
{
int i;
struct diff_queue_struct *q = &diff_queued_diff;
struct diff_queue_struct outq;
outq.queue = NULL;
outq.nr = outq.alloc = 0;
unsigned char *sha1;
unsigned int mode;
if (!filter)
/* New file in the index: it might actually be different in
* the working copy.
*/
if (get_stat_data(new, &sha1, &mode, cached, match_missing) < 0)
return;
if (strchr(filter, DIFF_STATUS_FILTER_AON)) {
int found;
for (i = found = 0; !found && i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
if (((p->status == DIFF_STATUS_MODIFIED) &&
((p->score &&
strchr(filter, DIFF_STATUS_FILTER_BROKEN)) ||
(!p->score &&
strchr(filter, DIFF_STATUS_MODIFIED)))) ||
((p->status != DIFF_STATUS_MODIFIED) &&
strchr(filter, p->status)))
found++;
}
if (found)
return;
diff_index_show_file(revs, "+", new, sha1, mode);
}
/* otherwise we will clear the whole queue
* by copying the empty outq at the end of this
* function, but first clear the current entries
* in the queue.
static int show_modified(struct rev_info *revs,
struct cache_entry *old,
struct cache_entry *new,
int report_missing,
int cached, int match_missing)
{
unsigned int mode, oldmode;
unsigned char *sha1;
if (get_stat_data(new, &sha1, &mode, cached, match_missing) < 0) {
if (report_missing)
diff_index_show_file(revs, "-", old,
old->sha1, old->ce_mode);
return -1;
}
oldmode = old->ce_mode;
if (mode == oldmode && !memcmp(sha1, old->sha1, 20) &&
!revs->diffopt.find_copies_harder)
return 0;
mode = ntohl(mode);
oldmode = ntohl(oldmode);
diff_change(&revs->diffopt, oldmode, mode,
old->sha1, sha1, old->name, NULL);
return 0;
}
static int diff_cache(struct rev_info *revs,
struct cache_entry **ac, int entries,
const char **pathspec,
int cached, int match_missing)
{
while (entries) {
struct cache_entry *ce = *ac;
int same = (entries > 1) && ce_same_name(ce, ac[1]);
if (!ce_path_match(ce, pathspec))
goto skip_entry;
switch (ce_stage(ce)) {
case 0:
/* No stage 1 entry? That means it's a new file */
if (!same) {
show_new_file(revs, ce, cached, match_missing);
break;
}
/* Show difference between old and new */
show_modified(revs,ac[1], ce, 1,
cached, match_missing);
break;
case 1:
/* No stage 3 (merge) entry?
* That means it's been deleted.
*/
if (!same) {
diff_index_show_file(revs, "-", ce,
ce->sha1, ce->ce_mode);
break;
}
/* We come here with ce pointing at stage 1
* (original tree) and ac[1] pointing at stage
* 3 (unmerged). show-modified with
* report-missing set to false does not say the
* file is deleted but reports true if work
* tree does not have it, in which case we
* fall through to report the unmerged state.
* Otherwise, we show the differences between
* the original tree and the work tree.
*/
if (!cached &&
!show_modified(revs, ce, ac[1], 0,
cached, match_missing))
break;
/* fallthru */
case 3:
diff_unmerge(&revs->diffopt, ce->name);
break;
default:
die("impossible cache entry stage");
}
skip_entry:
/*
* Ignore all the different stages for this file,
* we've handled the relevant cases now.
*/
for (i = 0; i < q->nr; i++)
diff_free_filepair(q->queue[i]);
do {
ac++;
entries--;
} while (entries && ce_same_name(ce, ac[0]));
}
else {
/* Only the matching ones */
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
return 0;
}
if (((p->status == DIFF_STATUS_MODIFIED) &&
((p->score &&
strchr(filter, DIFF_STATUS_FILTER_BROKEN)) ||
(!p->score &&
strchr(filter, DIFF_STATUS_MODIFIED)))) ||
((p->status != DIFF_STATUS_MODIFIED) &&
strchr(filter, p->status)))
diff_q(&outq, p);
else
diff_free_filepair(p);
}
/*
* This turns all merge entries into "stage 3". That guarantees that
* when we read in the new tree (into "stage 1"), we won't lose sight
* of the fact that we had unmerged entries.
*/
static void mark_merge_entries(void)
{
int i;
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
if (!ce_stage(ce))
continue;
ce->ce_flags |= htons(CE_STAGEMASK);
}
free(q->queue);
*q = outq;
}
void diffcore_std(struct diff_options *options)
int run_diff_index(struct rev_info *revs, int cached)
{
if (options->break_opt != -1)
diffcore_break(options->break_opt);
if (options->detect_rename)
diffcore_rename(options);
if (options->break_opt != -1)
diffcore_merge_broken();
if (options->pickaxe)
diffcore_pickaxe(options->pickaxe, options->pickaxe_opts);
if (options->orderfile)
diffcore_order(options->orderfile);
diff_resolve_rename_copy();
diffcore_apply_filter(options->filter);
}
int ret;
struct object *ent;
struct tree *tree;
const char *tree_name;
int match_missing = 0;
void diffcore_std_no_resolve(struct diff_options *options)
{
if (options->pickaxe)
diffcore_pickaxe(options->pickaxe, options->pickaxe_opts);
if (options->orderfile)
diffcore_order(options->orderfile);
diffcore_apply_filter(options->filter);
}
void diff_addremove(struct diff_options *options,
int addremove, unsigned mode,
const unsigned char *sha1,
const char *base, const char *path)
{
char concatpath[PATH_MAX];
struct diff_filespec *one, *two;
/* This may look odd, but it is a preparation for
* feeding "there are unchanged files which should
* not produce diffs, but when you are doing copy
* detection you would need them, so here they are"
* entries to the diff-core. They will be prefixed
* with something like '=' or '*' (I haven't decided
* which but should not make any difference).
* Feeding the same new and old to diff_change()
* also has the same effect.
* Before the final output happens, they are pruned after
* merged into rename/copy pairs as appropriate.
/*
* Backward compatibility wart - "diff-index -m" does
* not mean "do not ignore merges", but totally different.
*/
if (options->reverse_diff)
addremove = (addremove == '+' ? '-' :
addremove == '-' ? '+' : addremove);
if (!revs->ignore_merges)
match_missing = 1;
if (!path) path = "";
sprintf(concatpath, "%s%s", base, path);
one = alloc_filespec(concatpath);
two = alloc_filespec(concatpath);
if (addremove != '+')
fill_filespec(one, sha1, mode);
if (addremove != '-')
fill_filespec(two, sha1, mode);
diff_queue(&diff_queued_diff, one, two);
}
void diff_change(struct diff_options *options,
unsigned old_mode, unsigned new_mode,
const unsigned char *old_sha1,
const unsigned char *new_sha1,
const char *base, const char *path)
{
char concatpath[PATH_MAX];
struct diff_filespec *one, *two;
if (options->reverse_diff) {
unsigned tmp;
const unsigned char *tmp_c;
tmp = old_mode; old_mode = new_mode; new_mode = tmp;
tmp_c = old_sha1; old_sha1 = new_sha1; new_sha1 = tmp_c;
if (read_cache() < 0) {
perror("read_cache");
return -1;
}
if (!path) path = "";
sprintf(concatpath, "%s%s", base, path);
one = alloc_filespec(concatpath);
two = alloc_filespec(concatpath);
fill_filespec(one, old_sha1, old_mode);
fill_filespec(two, new_sha1, new_mode);
mark_merge_entries();
diff_queue(&diff_queued_diff, one, two);
}
void diff_unmerge(struct diff_options *options,
const char *path)
{
struct diff_filespec *one, *two;
one = alloc_filespec(path);
two = alloc_filespec(path);
diff_queue(&diff_queued_diff, one, two);
ent = revs->pending_objects->item;
tree_name = revs->pending_objects->name;
tree = parse_tree_indirect(ent->sha1);
if (!tree)
return error("bad tree object %s", tree_name);
if (read_tree(tree, 1, revs->prune_data))
return error("unable to read tree object %s", tree_name);
ret = diff_cache(revs, active_cache, active_nr, revs->prune_data,
cached, match_missing);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return ret;
}

1803
diff.c Normal file
View File

@ -0,0 +1,1803 @@
/*
* Copyright (C) 2005 Junio C Hamano
*/
#include <sys/types.h>
#include <sys/wait.h>
#include <signal.h>
#include "cache.h"
#include "quote.h"
#include "diff.h"
#include "diffcore.h"
#include "xdiff-interface.h"
static int use_size_cache;
int diff_rename_limit_default = -1;
int git_diff_config(const char *var, const char *value)
{
if (!strcmp(var, "diff.renamelimit")) {
diff_rename_limit_default = git_config_int(var, value);
return 0;
}
return git_default_config(var, value);
}
static char *quote_one(const char *str)
{
int needlen;
char *xp;
if (!str)
return NULL;
needlen = quote_c_style(str, NULL, NULL, 0);
if (!needlen)
return strdup(str);
xp = xmalloc(needlen + 1);
quote_c_style(str, xp, NULL, 0);
return xp;
}
static char *quote_two(const char *one, const char *two)
{
int need_one = quote_c_style(one, NULL, NULL, 1);
int need_two = quote_c_style(two, NULL, NULL, 1);
char *xp;
if (need_one + need_two) {
if (!need_one) need_one = strlen(one);
if (!need_two) need_one = strlen(two);
xp = xmalloc(need_one + need_two + 3);
xp[0] = '"';
quote_c_style(one, xp + 1, NULL, 1);
quote_c_style(two, xp + need_one + 1, NULL, 1);
strcpy(xp + need_one + need_two + 1, "\"");
return xp;
}
need_one = strlen(one);
need_two = strlen(two);
xp = xmalloc(need_one + need_two + 1);
strcpy(xp, one);
strcpy(xp + need_one, two);
return xp;
}
static const char *external_diff(void)
{
static const char *external_diff_cmd = NULL;
static int done_preparing = 0;
if (done_preparing)
return external_diff_cmd;
external_diff_cmd = getenv("GIT_EXTERNAL_DIFF");
done_preparing = 1;
return external_diff_cmd;
}
#define TEMPFILE_PATH_LEN 50
static struct diff_tempfile {
const char *name; /* filename external diff should read from */
char hex[41];
char mode[10];
char tmp_path[TEMPFILE_PATH_LEN];
} diff_temp[2];
static int count_lines(const char *data, int size)
{
int count, ch, completely_empty = 1, nl_just_seen = 0;
count = 0;
while (0 < size--) {
ch = *data++;
if (ch == '\n') {
count++;
nl_just_seen = 1;
completely_empty = 0;
}
else {
nl_just_seen = 0;
completely_empty = 0;
}
}
if (completely_empty)
return 0;
if (!nl_just_seen)
count++; /* no trailing newline */
return count;
}
static void print_line_count(int count)
{
switch (count) {
case 0:
printf("0,0");
break;
case 1:
printf("1");
break;
default:
printf("1,%d", count);
break;
}
}
static void copy_file(int prefix, const char *data, int size)
{
int ch, nl_just_seen = 1;
while (0 < size--) {
ch = *data++;
if (nl_just_seen)
putchar(prefix);
putchar(ch);
if (ch == '\n')
nl_just_seen = 1;
else
nl_just_seen = 0;
}
if (!nl_just_seen)
printf("\n\\ No newline at end of file\n");
}
static void emit_rewrite_diff(const char *name_a,
const char *name_b,
struct diff_filespec *one,
struct diff_filespec *two)
{
int lc_a, lc_b;
diff_populate_filespec(one, 0);
diff_populate_filespec(two, 0);
lc_a = count_lines(one->data, one->size);
lc_b = count_lines(two->data, two->size);
printf("--- %s\n+++ %s\n@@ -", name_a, name_b);
print_line_count(lc_a);
printf(" +");
print_line_count(lc_b);
printf(" @@\n");
if (lc_a)
copy_file('-', one->data, one->size);
if (lc_b)
copy_file('+', two->data, two->size);
}
static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
{
if (!DIFF_FILE_VALID(one)) {
mf->ptr = ""; /* does not matter */
mf->size = 0;
return 0;
}
else if (diff_populate_filespec(one, 0))
return -1;
mf->ptr = one->data;
mf->size = one->size;
return 0;
}
struct emit_callback {
const char **label_path;
};
static int fn_out(void *priv, mmbuffer_t *mb, int nbuf)
{
int i;
struct emit_callback *ecbdata = priv;
if (ecbdata->label_path[0]) {
printf("--- %s\n", ecbdata->label_path[0]);
printf("+++ %s\n", ecbdata->label_path[1]);
ecbdata->label_path[0] = ecbdata->label_path[1] = NULL;
}
for (i = 0; i < nbuf; i++)
if (!fwrite(mb[i].ptr, mb[i].size, 1, stdout))
return -1;
return 0;
}
static char *pprint_rename(const char *a, const char *b)
{
const char *old = a;
const char *new = b;
char *name = NULL;
int pfx_length, sfx_length;
int len_a = strlen(a);
int len_b = strlen(b);
/* Find common prefix */
pfx_length = 0;
while (*old && *new && *old == *new) {
if (*old == '/')
pfx_length = old - a + 1;
old++;
new++;
}
/* Find common suffix */
old = a + len_a;
new = b + len_b;
sfx_length = 0;
while (a <= old && b <= new && *old == *new) {
if (*old == '/')
sfx_length = len_a - (old - a);
old--;
new--;
}
/*
* pfx{mid-a => mid-b}sfx
* {pfx-a => pfx-b}sfx
* pfx{sfx-a => sfx-b}
* name-a => name-b
*/
if (pfx_length + sfx_length) {
name = xmalloc(len_a + len_b - pfx_length - sfx_length + 7);
sprintf(name, "%.*s{%.*s => %.*s}%s",
pfx_length, a,
len_a - pfx_length - sfx_length, a + pfx_length,
len_b - pfx_length - sfx_length, b + pfx_length,
a + len_a - sfx_length);
}
else {
name = xmalloc(len_a + len_b + 5);
sprintf(name, "%s => %s", a, b);
}
return name;
}
struct diffstat_t {
struct xdiff_emit_state xm;
int nr;
int alloc;
struct diffstat_file {
char *name;
unsigned is_unmerged:1;
unsigned is_binary:1;
unsigned is_renamed:1;
unsigned int added, deleted;
} **files;
};
static struct diffstat_file *diffstat_add(struct diffstat_t *diffstat,
const char *name_a,
const char *name_b)
{
struct diffstat_file *x;
x = xcalloc(sizeof (*x), 1);
if (diffstat->nr == diffstat->alloc) {
diffstat->alloc = alloc_nr(diffstat->alloc);
diffstat->files = xrealloc(diffstat->files,
diffstat->alloc * sizeof(x));
}
diffstat->files[diffstat->nr++] = x;
if (name_b) {
x->name = pprint_rename(name_a, name_b);
x->is_renamed = 1;
}
else
x->name = strdup(name_a);
return x;
}
static void diffstat_consume(void *priv, char *line, unsigned long len)
{
struct diffstat_t *diffstat = priv;
struct diffstat_file *x = diffstat->files[diffstat->nr - 1];
if (line[0] == '+')
x->added++;
else if (line[0] == '-')
x->deleted++;
}
static const char pluses[] = "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++";
static const char minuses[]= "----------------------------------------------------------------------";
static void show_stats(struct diffstat_t* data)
{
char *prefix = "";
int i, len, add, del, total, adds = 0, dels = 0;
int max, max_change = 0, max_len = 0;
int total_files = data->nr;
if (data->nr == 0)
return;
for (i = 0; i < data->nr; i++) {
struct diffstat_file *file = data->files[i];
len = strlen(file->name);
if (max_len < len)
max_len = len;
if (file->is_binary || file->is_unmerged)
continue;
if (max_change < file->added + file->deleted)
max_change = file->added + file->deleted;
}
for (i = 0; i < data->nr; i++) {
char *name = data->files[i]->name;
int added = data->files[i]->added;
int deleted = data->files[i]->deleted;
if (0 < (len = quote_c_style(name, NULL, NULL, 0))) {
char *qname = xmalloc(len + 1);
quote_c_style(name, qname, NULL, 0);
free(name);
data->files[i]->name = name = qname;
}
/*
* "scale" the filename
*/
len = strlen(name);
max = max_len;
if (max > 50)
max = 50;
if (len > max) {
char *slash;
prefix = "...";
max -= 3;
name += len - max;
slash = strchr(name, '/');
if (slash)
name = slash;
}
len = max;
/*
* scale the add/delete
*/
max = max_change;
if (max + len > 70)
max = 70 - len;
if (data->files[i]->is_binary) {
printf(" %s%-*s | Bin\n", prefix, len, name);
goto free_diffstat_file;
}
else if (data->files[i]->is_unmerged) {
printf(" %s%-*s | Unmerged\n", prefix, len, name);
goto free_diffstat_file;
}
else if (!data->files[i]->is_renamed &&
(added + deleted == 0)) {
total_files--;
goto free_diffstat_file;
}
add = added;
del = deleted;
total = add + del;
adds += add;
dels += del;
if (max_change > 0) {
total = (total * max + max_change / 2) / max_change;
add = (add * max + max_change / 2) / max_change;
del = total - add;
}
printf(" %s%-*s |%5d %.*s%.*s\n", prefix,
len, name, added + deleted,
add, pluses, del, minuses);
free_diffstat_file:
free(data->files[i]->name);
free(data->files[i]);
}
free(data->files);
printf(" %d files changed, %d insertions(+), %d deletions(-)\n",
total_files, adds, dels);
}
#define FIRST_FEW_BYTES 8000
static int mmfile_is_binary(mmfile_t *mf)
{
long sz = mf->size;
if (FIRST_FEW_BYTES < sz)
sz = FIRST_FEW_BYTES;
if (memchr(mf->ptr, 0, sz))
return 1;
return 0;
}
static void builtin_diff(const char *name_a,
const char *name_b,
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
int complete_rewrite)
{
mmfile_t mf1, mf2;
const char *lbl[2];
char *a_one, *b_two;
a_one = quote_two("a/", name_a);
b_two = quote_two("b/", name_b);
lbl[0] = DIFF_FILE_VALID(one) ? a_one : "/dev/null";
lbl[1] = DIFF_FILE_VALID(two) ? b_two : "/dev/null";
printf("diff --git %s %s\n", a_one, b_two);
if (lbl[0][0] == '/') {
/* /dev/null */
printf("new file mode %06o\n", two->mode);
if (xfrm_msg && xfrm_msg[0])
puts(xfrm_msg);
}
else if (lbl[1][0] == '/') {
printf("deleted file mode %06o\n", one->mode);
if (xfrm_msg && xfrm_msg[0])
puts(xfrm_msg);
}
else {
if (one->mode != two->mode) {
printf("old mode %06o\n", one->mode);
printf("new mode %06o\n", two->mode);
}
if (xfrm_msg && xfrm_msg[0])
puts(xfrm_msg);
/*
* we do not run diff between different kind
* of objects.
*/
if ((one->mode ^ two->mode) & S_IFMT)
goto free_ab_and_return;
if (complete_rewrite) {
emit_rewrite_diff(name_a, name_b, one, two);
goto free_ab_and_return;
}
}
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
if (mmfile_is_binary(&mf1) || mmfile_is_binary(&mf2))
printf("Binary files %s and %s differ\n", lbl[0], lbl[1]);
else {
/* Crazy xdl interfaces.. */
const char *diffopts = getenv("GIT_DIFF_OPTS");
xpparam_t xpp;
xdemitconf_t xecfg;
xdemitcb_t ecb;
struct emit_callback ecbdata;
ecbdata.label_path = lbl;
xpp.flags = XDF_NEED_MINIMAL;
xecfg.ctxlen = 3;
xecfg.flags = XDL_EMIT_FUNCNAMES;
if (!diffopts)
;
else if (!strncmp(diffopts, "--unified=", 10))
xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10);
else if (!strncmp(diffopts, "-u", 2))
xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10);
ecb.outf = fn_out;
ecb.priv = &ecbdata;
xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
}
free_ab_and_return:
free(a_one);
free(b_two);
return;
}
static void builtin_diffstat(const char *name_a, const char *name_b,
struct diff_filespec *one,
struct diff_filespec *two,
struct diffstat_t *diffstat,
int complete_rewrite)
{
mmfile_t mf1, mf2;
struct diffstat_file *data;
data = diffstat_add(diffstat, name_a, name_b);
if (!one || !two) {
data->is_unmerged = 1;
return;
}
if (complete_rewrite) {
diff_populate_filespec(one, 0);
diff_populate_filespec(two, 0);
data->deleted = count_lines(one->data, one->size);
data->added = count_lines(two->data, two->size);
return;
}
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
if (mmfile_is_binary(&mf1) || mmfile_is_binary(&mf2))
data->is_binary = 1;
else {
/* Crazy xdl interfaces.. */
xpparam_t xpp;
xdemitconf_t xecfg;
xdemitcb_t ecb;
xpp.flags = XDF_NEED_MINIMAL;
xecfg.ctxlen = 0;
xecfg.flags = 0;
ecb.outf = xdiff_outf;
ecb.priv = diffstat;
xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
}
}
struct diff_filespec *alloc_filespec(const char *path)
{
int namelen = strlen(path);
struct diff_filespec *spec = xmalloc(sizeof(*spec) + namelen + 1);
memset(spec, 0, sizeof(*spec));
spec->path = (char *)(spec + 1);
memcpy(spec->path, path, namelen+1);
return spec;
}
void fill_filespec(struct diff_filespec *spec, const unsigned char *sha1,
unsigned short mode)
{
if (mode) {
spec->mode = canon_mode(mode);
memcpy(spec->sha1, sha1, 20);
spec->sha1_valid = !!memcmp(sha1, null_sha1, 20);
}
}
/*
* Given a name and sha1 pair, if the dircache tells us the file in
* the work tree has that object contents, return true, so that
* prepare_temp_file() does not have to inflate and extract.
*/
static int work_tree_matches(const char *name, const unsigned char *sha1)
{
struct cache_entry *ce;
struct stat st;
int pos, len;
/* We do not read the cache ourselves here, because the
* benchmark with my previous version that always reads cache
* shows that it makes things worse for diff-tree comparing
* two linux-2.6 kernel trees in an already checked out work
* tree. This is because most diff-tree comparisons deal with
* only a small number of files, while reading the cache is
* expensive for a large project, and its cost outweighs the
* savings we get by not inflating the object to a temporary
* file. Practically, this code only helps when we are used
* by diff-cache --cached, which does read the cache before
* calling us.
*/
if (!active_cache)
return 0;
len = strlen(name);
pos = cache_name_pos(name, len);
if (pos < 0)
return 0;
ce = active_cache[pos];
if ((lstat(name, &st) < 0) ||
!S_ISREG(st.st_mode) || /* careful! */
ce_match_stat(ce, &st, 0) ||
memcmp(sha1, ce->sha1, 20))
return 0;
/* we return 1 only when we can stat, it is a regular file,
* stat information matches, and sha1 recorded in the cache
* matches. I.e. we know the file in the work tree really is
* the same as the <name, sha1> pair.
*/
return 1;
}
static struct sha1_size_cache {
unsigned char sha1[20];
unsigned long size;
} **sha1_size_cache;
static int sha1_size_cache_nr, sha1_size_cache_alloc;
static struct sha1_size_cache *locate_size_cache(unsigned char *sha1,
int find_only,
unsigned long size)
{
int first, last;
struct sha1_size_cache *e;
first = 0;
last = sha1_size_cache_nr;
while (last > first) {
int cmp, next = (last + first) >> 1;
e = sha1_size_cache[next];
cmp = memcmp(e->sha1, sha1, 20);
if (!cmp)
return e;
if (cmp < 0) {
last = next;
continue;
}
first = next+1;
}
/* not found */
if (find_only)
return NULL;
/* insert to make it at "first" */
if (sha1_size_cache_alloc <= sha1_size_cache_nr) {
sha1_size_cache_alloc = alloc_nr(sha1_size_cache_alloc);
sha1_size_cache = xrealloc(sha1_size_cache,
sha1_size_cache_alloc *
sizeof(*sha1_size_cache));
}
sha1_size_cache_nr++;
if (first < sha1_size_cache_nr)
memmove(sha1_size_cache + first + 1, sha1_size_cache + first,
(sha1_size_cache_nr - first - 1) *
sizeof(*sha1_size_cache));
e = xmalloc(sizeof(struct sha1_size_cache));
sha1_size_cache[first] = e;
memcpy(e->sha1, sha1, 20);
e->size = size;
return e;
}
/*
* While doing rename detection and pickaxe operation, we may need to
* grab the data for the blob (or file) for our own in-core comparison.
* diff_filespec has data and size fields for this purpose.
*/
int diff_populate_filespec(struct diff_filespec *s, int size_only)
{
int err = 0;
if (!DIFF_FILE_VALID(s))
die("internal error: asking to populate invalid file.");
if (S_ISDIR(s->mode))
return -1;
if (!use_size_cache)
size_only = 0;
if (s->data)
return err;
if (!s->sha1_valid ||
work_tree_matches(s->path, s->sha1)) {
struct stat st;
int fd;
if (lstat(s->path, &st) < 0) {
if (errno == ENOENT) {
err_empty:
err = -1;
empty:
s->data = "";
s->size = 0;
return err;
}
}
s->size = st.st_size;
if (!s->size)
goto empty;
if (size_only)
return 0;
if (S_ISLNK(st.st_mode)) {
int ret;
s->data = xmalloc(s->size);
s->should_free = 1;
ret = readlink(s->path, s->data, s->size);
if (ret < 0) {
free(s->data);
goto err_empty;
}
return 0;
}
fd = open(s->path, O_RDONLY);
if (fd < 0)
goto err_empty;
s->data = mmap(NULL, s->size, PROT_READ, MAP_PRIVATE, fd, 0);
close(fd);
if (s->data == MAP_FAILED)
goto err_empty;
s->should_munmap = 1;
}
else {
char type[20];
struct sha1_size_cache *e;
if (size_only) {
e = locate_size_cache(s->sha1, 1, 0);
if (e) {
s->size = e->size;
return 0;
}
if (!sha1_object_info(s->sha1, type, &s->size))
locate_size_cache(s->sha1, 0, s->size);
}
else {
s->data = read_sha1_file(s->sha1, type, &s->size);
s->should_free = 1;
}
}
return 0;
}
void diff_free_filespec_data(struct diff_filespec *s)
{
if (s->should_free)
free(s->data);
else if (s->should_munmap)
munmap(s->data, s->size);
s->should_free = s->should_munmap = 0;
s->data = NULL;
free(s->cnt_data);
s->cnt_data = NULL;
}
static void prep_temp_blob(struct diff_tempfile *temp,
void *blob,
unsigned long size,
const unsigned char *sha1,
int mode)
{
int fd;
fd = git_mkstemp(temp->tmp_path, TEMPFILE_PATH_LEN, ".diff_XXXXXX");
if (fd < 0)
die("unable to create temp-file");
if (write(fd, blob, size) != size)
die("unable to write temp-file");
close(fd);
temp->name = temp->tmp_path;
strcpy(temp->hex, sha1_to_hex(sha1));
temp->hex[40] = 0;
sprintf(temp->mode, "%06o", mode);
}
static void prepare_temp_file(const char *name,
struct diff_tempfile *temp,
struct diff_filespec *one)
{
if (!DIFF_FILE_VALID(one)) {
not_a_valid_file:
/* A '-' entry produces this for file-2, and
* a '+' entry produces this for file-1.
*/
temp->name = "/dev/null";
strcpy(temp->hex, ".");
strcpy(temp->mode, ".");
return;
}
if (!one->sha1_valid ||
work_tree_matches(name, one->sha1)) {
struct stat st;
if (lstat(name, &st) < 0) {
if (errno == ENOENT)
goto not_a_valid_file;
die("stat(%s): %s", name, strerror(errno));
}
if (S_ISLNK(st.st_mode)) {
int ret;
char buf[PATH_MAX + 1]; /* ought to be SYMLINK_MAX */
if (sizeof(buf) <= st.st_size)
die("symlink too long: %s", name);
ret = readlink(name, buf, st.st_size);
if (ret < 0)
die("readlink(%s)", name);
prep_temp_blob(temp, buf, st.st_size,
(one->sha1_valid ?
one->sha1 : null_sha1),
(one->sha1_valid ?
one->mode : S_IFLNK));
}
else {
/* we can borrow from the file in the work tree */
temp->name = name;
if (!one->sha1_valid)
strcpy(temp->hex, sha1_to_hex(null_sha1));
else
strcpy(temp->hex, sha1_to_hex(one->sha1));
/* Even though we may sometimes borrow the
* contents from the work tree, we always want
* one->mode. mode is trustworthy even when
* !(one->sha1_valid), as long as
* DIFF_FILE_VALID(one).
*/
sprintf(temp->mode, "%06o", one->mode);
}
return;
}
else {
if (diff_populate_filespec(one, 0))
die("cannot read data blob for %s", one->path);
prep_temp_blob(temp, one->data, one->size,
one->sha1, one->mode);
}
}
static void remove_tempfile(void)
{
int i;
for (i = 0; i < 2; i++)
if (diff_temp[i].name == diff_temp[i].tmp_path) {
unlink(diff_temp[i].name);
diff_temp[i].name = NULL;
}
}
static void remove_tempfile_on_signal(int signo)
{
remove_tempfile();
signal(SIGINT, SIG_DFL);
raise(signo);
}
static int spawn_prog(const char *pgm, const char **arg)
{
pid_t pid;
int status;
fflush(NULL);
pid = fork();
if (pid < 0)
die("unable to fork");
if (!pid) {
execvp(pgm, (char *const*) arg);
exit(255);
}
while (waitpid(pid, &status, 0) < 0) {
if (errno == EINTR)
continue;
return -1;
}
/* Earlier we did not check the exit status because
* diff exits non-zero if files are different, and
* we are not interested in knowing that. It was a
* mistake which made it harder to quit a diff-*
* session that uses the git-apply-patch-script as
* the GIT_EXTERNAL_DIFF. A custom GIT_EXTERNAL_DIFF
* should also exit non-zero only when it wants to
* abort the entire diff-* session.
*/
if (WIFEXITED(status) && !WEXITSTATUS(status))
return 0;
return -1;
}
/* An external diff command takes:
*
* diff-cmd name infile1 infile1-sha1 infile1-mode \
* infile2 infile2-sha1 infile2-mode [ rename-to ]
*
*/
static void run_external_diff(const char *pgm,
const char *name,
const char *other,
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
int complete_rewrite)
{
const char *spawn_arg[10];
struct diff_tempfile *temp = diff_temp;
int retval;
static int atexit_asked = 0;
const char *othername;
const char **arg = &spawn_arg[0];
othername = (other? other : name);
if (one && two) {
prepare_temp_file(name, &temp[0], one);
prepare_temp_file(othername, &temp[1], two);
if (! atexit_asked &&
(temp[0].name == temp[0].tmp_path ||
temp[1].name == temp[1].tmp_path)) {
atexit_asked = 1;
atexit(remove_tempfile);
}
signal(SIGINT, remove_tempfile_on_signal);
}
if (one && two) {
*arg++ = pgm;
*arg++ = name;
*arg++ = temp[0].name;
*arg++ = temp[0].hex;
*arg++ = temp[0].mode;
*arg++ = temp[1].name;
*arg++ = temp[1].hex;
*arg++ = temp[1].mode;
if (other) {
*arg++ = other;
*arg++ = xfrm_msg;
}
} else {
*arg++ = pgm;
*arg++ = name;
}
*arg = NULL;
retval = spawn_prog(pgm, spawn_arg);
remove_tempfile();
if (retval) {
fprintf(stderr, "external diff died, stopping at %s.\n", name);
exit(1);
}
}
static void run_diff_cmd(const char *pgm,
const char *name,
const char *other,
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
int complete_rewrite)
{
if (pgm) {
run_external_diff(pgm, name, other, one, two, xfrm_msg,
complete_rewrite);
return;
}
if (one && two)
builtin_diff(name, other ? other : name,
one, two, xfrm_msg, complete_rewrite);
else
printf("* Unmerged path %s\n", name);
}
static void diff_fill_sha1_info(struct diff_filespec *one)
{
if (DIFF_FILE_VALID(one)) {
if (!one->sha1_valid) {
struct stat st;
if (lstat(one->path, &st) < 0)
die("stat %s", one->path);
if (index_path(one->sha1, one->path, &st, 0))
die("cannot hash %s\n", one->path);
}
}
else
memset(one->sha1, 0, 20);
}
static void run_diff(struct diff_filepair *p, struct diff_options *o)
{
const char *pgm = external_diff();
char msg[PATH_MAX*2+300], *xfrm_msg;
struct diff_filespec *one;
struct diff_filespec *two;
const char *name;
const char *other;
char *name_munged, *other_munged;
int complete_rewrite = 0;
int len;
if (DIFF_PAIR_UNMERGED(p)) {
/* unmerged */
run_diff_cmd(pgm, p->one->path, NULL, NULL, NULL, NULL, 0);
return;
}
name = p->one->path;
other = (strcmp(name, p->two->path) ? p->two->path : NULL);
name_munged = quote_one(name);
other_munged = quote_one(other);
one = p->one; two = p->two;
diff_fill_sha1_info(one);
diff_fill_sha1_info(two);
len = 0;
switch (p->status) {
case DIFF_STATUS_COPIED:
len += snprintf(msg + len, sizeof(msg) - len,
"similarity index %d%%\n"
"copy from %s\n"
"copy to %s\n",
(int)(0.5 + p->score * 100.0/MAX_SCORE),
name_munged, other_munged);
break;
case DIFF_STATUS_RENAMED:
len += snprintf(msg + len, sizeof(msg) - len,
"similarity index %d%%\n"
"rename from %s\n"
"rename to %s\n",
(int)(0.5 + p->score * 100.0/MAX_SCORE),
name_munged, other_munged);
break;
case DIFF_STATUS_MODIFIED:
if (p->score) {
len += snprintf(msg + len, sizeof(msg) - len,
"dissimilarity index %d%%\n",
(int)(0.5 + p->score *
100.0/MAX_SCORE));
complete_rewrite = 1;
break;
}
/* fallthru */
default:
/* nothing */
;
}
if (memcmp(one->sha1, two->sha1, 20)) {
int abbrev = o->full_index ? 40 : DEFAULT_ABBREV;
len += snprintf(msg + len, sizeof(msg) - len,
"index %.*s..%.*s",
abbrev, sha1_to_hex(one->sha1),
abbrev, sha1_to_hex(two->sha1));
if (one->mode == two->mode)
len += snprintf(msg + len, sizeof(msg) - len,
" %06o", one->mode);
len += snprintf(msg + len, sizeof(msg) - len, "\n");
}
if (len)
msg[--len] = 0;
xfrm_msg = len ? msg : NULL;
if (!pgm &&
DIFF_FILE_VALID(one) && DIFF_FILE_VALID(two) &&
(S_IFMT & one->mode) != (S_IFMT & two->mode)) {
/* a filepair that changes between file and symlink
* needs to be split into deletion and creation.
*/
struct diff_filespec *null = alloc_filespec(two->path);
run_diff_cmd(NULL, name, other, one, null, xfrm_msg, 0);
free(null);
null = alloc_filespec(one->path);
run_diff_cmd(NULL, name, other, null, two, xfrm_msg, 0);
free(null);
}
else
run_diff_cmd(pgm, name, other, one, two, xfrm_msg,
complete_rewrite);
free(name_munged);
free(other_munged);
}
static void run_diffstat(struct diff_filepair *p, struct diff_options *o,
struct diffstat_t *diffstat)
{
const char *name;
const char *other;
int complete_rewrite = 0;
if (DIFF_PAIR_UNMERGED(p)) {
/* unmerged */
builtin_diffstat(p->one->path, NULL, NULL, NULL, diffstat, 0);
return;
}
name = p->one->path;
other = (strcmp(name, p->two->path) ? p->two->path : NULL);
diff_fill_sha1_info(p->one);
diff_fill_sha1_info(p->two);
if (p->status == DIFF_STATUS_MODIFIED && p->score)
complete_rewrite = 1;
builtin_diffstat(name, other, p->one, p->two, diffstat, complete_rewrite);
}
void diff_setup(struct diff_options *options)
{
memset(options, 0, sizeof(*options));
options->output_format = DIFF_FORMAT_RAW;
options->line_termination = '\n';
options->break_opt = -1;
options->rename_limit = -1;
options->change = diff_change;
options->add_remove = diff_addremove;
}
int diff_setup_done(struct diff_options *options)
{
if ((options->find_copies_harder &&
options->detect_rename != DIFF_DETECT_COPY) ||
(0 <= options->rename_limit && !options->detect_rename))
return -1;
/*
* These cases always need recursive; we do not drop caller-supplied
* recursive bits for other formats here.
*/
if ((options->output_format == DIFF_FORMAT_PATCH) ||
(options->output_format == DIFF_FORMAT_DIFFSTAT))
options->recursive = 1;
if (options->detect_rename && options->rename_limit < 0)
options->rename_limit = diff_rename_limit_default;
if (options->setup & DIFF_SETUP_USE_CACHE) {
if (!active_cache)
/* read-cache does not die even when it fails
* so it is safe for us to do this here. Also
* it does not smudge active_cache or active_nr
* when it fails, so we do not have to worry about
* cleaning it up ourselves either.
*/
read_cache();
}
if (options->setup & DIFF_SETUP_USE_SIZE_CACHE)
use_size_cache = 1;
if (options->abbrev <= 0 || 40 < options->abbrev)
options->abbrev = 40; /* full */
return 0;
}
int diff_opt_parse(struct diff_options *options, const char **av, int ac)
{
const char *arg = av[0];
if (!strcmp(arg, "-p") || !strcmp(arg, "-u"))
options->output_format = DIFF_FORMAT_PATCH;
else if (!strcmp(arg, "--patch-with-raw")) {
options->output_format = DIFF_FORMAT_PATCH;
options->with_raw = 1;
}
else if (!strcmp(arg, "--stat"))
options->output_format = DIFF_FORMAT_DIFFSTAT;
else if (!strcmp(arg, "--patch-with-stat")) {
options->output_format = DIFF_FORMAT_PATCH;
options->with_stat = 1;
}
else if (!strcmp(arg, "-z"))
options->line_termination = 0;
else if (!strncmp(arg, "-l", 2))
options->rename_limit = strtoul(arg+2, NULL, 10);
else if (!strcmp(arg, "--full-index"))
options->full_index = 1;
else if (!strcmp(arg, "--name-only"))
options->output_format = DIFF_FORMAT_NAME;
else if (!strcmp(arg, "--name-status"))
options->output_format = DIFF_FORMAT_NAME_STATUS;
else if (!strcmp(arg, "-R"))
options->reverse_diff = 1;
else if (!strncmp(arg, "-S", 2))
options->pickaxe = arg + 2;
else if (!strcmp(arg, "-s"))
options->output_format = DIFF_FORMAT_NO_OUTPUT;
else if (!strncmp(arg, "-O", 2))
options->orderfile = arg + 2;
else if (!strncmp(arg, "--diff-filter=", 14))
options->filter = arg + 14;
else if (!strcmp(arg, "--pickaxe-all"))
options->pickaxe_opts = DIFF_PICKAXE_ALL;
else if (!strcmp(arg, "--pickaxe-regex"))
options->pickaxe_opts = DIFF_PICKAXE_REGEX;
else if (!strncmp(arg, "-B", 2)) {
if ((options->break_opt =
diff_scoreopt_parse(arg)) == -1)
return -1;
}
else if (!strncmp(arg, "-M", 2)) {
if ((options->rename_score =
diff_scoreopt_parse(arg)) == -1)
return -1;
options->detect_rename = DIFF_DETECT_RENAME;
}
else if (!strncmp(arg, "-C", 2)) {
if ((options->rename_score =
diff_scoreopt_parse(arg)) == -1)
return -1;
options->detect_rename = DIFF_DETECT_COPY;
}
else if (!strcmp(arg, "--find-copies-harder"))
options->find_copies_harder = 1;
else if (!strcmp(arg, "--abbrev"))
options->abbrev = DEFAULT_ABBREV;
else if (!strncmp(arg, "--abbrev=", 9)) {
options->abbrev = strtoul(arg + 9, NULL, 10);
if (options->abbrev < MINIMUM_ABBREV)
options->abbrev = MINIMUM_ABBREV;
else if (40 < options->abbrev)
options->abbrev = 40;
}
else
return 0;
return 1;
}
static int parse_num(const char **cp_p)
{
unsigned long num, scale;
int ch, dot;
const char *cp = *cp_p;
num = 0;
scale = 1;
dot = 0;
for(;;) {
ch = *cp;
if ( !dot && ch == '.' ) {
scale = 1;
dot = 1;
} else if ( ch == '%' ) {
scale = dot ? scale*100 : 100;
cp++; /* % is always at the end */
break;
} else if ( ch >= '0' && ch <= '9' ) {
if ( scale < 100000 ) {
scale *= 10;
num = (num*10) + (ch-'0');
}
} else {
break;
}
cp++;
}
*cp_p = cp;
/* user says num divided by scale and we say internally that
* is MAX_SCORE * num / scale.
*/
return (num >= scale) ? MAX_SCORE : (MAX_SCORE * num / scale);
}
int diff_scoreopt_parse(const char *opt)
{
int opt1, opt2, cmd;
if (*opt++ != '-')
return -1;
cmd = *opt++;
if (cmd != 'M' && cmd != 'C' && cmd != 'B')
return -1; /* that is not a -M, -C nor -B option */
opt1 = parse_num(&opt);
if (cmd != 'B')
opt2 = 0;
else {
if (*opt == 0)
opt2 = 0;
else if (*opt != '/')
return -1; /* we expect -B80/99 or -B80 */
else {
opt++;
opt2 = parse_num(&opt);
}
}
if (*opt != 0)
return -1;
return opt1 | (opt2 << 16);
}
struct diff_queue_struct diff_queued_diff;
void diff_q(struct diff_queue_struct *queue, struct diff_filepair *dp)
{
if (queue->alloc <= queue->nr) {
queue->alloc = alloc_nr(queue->alloc);
queue->queue = xrealloc(queue->queue,
sizeof(dp) * queue->alloc);
}
queue->queue[queue->nr++] = dp;
}
struct diff_filepair *diff_queue(struct diff_queue_struct *queue,
struct diff_filespec *one,
struct diff_filespec *two)
{
struct diff_filepair *dp = xmalloc(sizeof(*dp));
dp->one = one;
dp->two = two;
dp->score = 0;
dp->status = 0;
dp->source_stays = 0;
dp->broken_pair = 0;
if (queue)
diff_q(queue, dp);
return dp;
}
void diff_free_filepair(struct diff_filepair *p)
{
diff_free_filespec_data(p->one);
diff_free_filespec_data(p->two);
free(p->one);
free(p->two);
free(p);
}
/* This is different from find_unique_abbrev() in that
* it stuffs the result with dots for alignment.
*/
const char *diff_unique_abbrev(const unsigned char *sha1, int len)
{
int abblen;
const char *abbrev;
if (len == 40)
return sha1_to_hex(sha1);
abbrev = find_unique_abbrev(sha1, len);
if (!abbrev)
return sha1_to_hex(sha1);
abblen = strlen(abbrev);
if (abblen < 37) {
static char hex[41];
if (len < abblen && abblen <= len + 2)
sprintf(hex, "%s%.*s", abbrev, len+3-abblen, "..");
else
sprintf(hex, "%s...", abbrev);
return hex;
}
return sha1_to_hex(sha1);
}
static void diff_flush_raw(struct diff_filepair *p,
int line_termination,
int inter_name_termination,
struct diff_options *options,
int output_format)
{
int two_paths;
char status[10];
int abbrev = options->abbrev;
const char *path_one, *path_two;
path_one = p->one->path;
path_two = p->two->path;
if (line_termination) {
path_one = quote_one(path_one);
path_two = quote_one(path_two);
}
if (p->score)
sprintf(status, "%c%03d", p->status,
(int)(0.5 + p->score * 100.0/MAX_SCORE));
else {
status[0] = p->status;
status[1] = 0;
}
switch (p->status) {
case DIFF_STATUS_COPIED:
case DIFF_STATUS_RENAMED:
two_paths = 1;
break;
case DIFF_STATUS_ADDED:
case DIFF_STATUS_DELETED:
two_paths = 0;
break;
default:
two_paths = 0;
break;
}
if (output_format != DIFF_FORMAT_NAME_STATUS) {
printf(":%06o %06o %s ",
p->one->mode, p->two->mode,
diff_unique_abbrev(p->one->sha1, abbrev));
printf("%s ",
diff_unique_abbrev(p->two->sha1, abbrev));
}
printf("%s%c%s", status, inter_name_termination, path_one);
if (two_paths)
printf("%c%s", inter_name_termination, path_two);
putchar(line_termination);
if (path_one != p->one->path)
free((void*)path_one);
if (path_two != p->two->path)
free((void*)path_two);
}
static void diff_flush_name(struct diff_filepair *p,
int inter_name_termination,
int line_termination)
{
char *path = p->two->path;
if (line_termination)
path = quote_one(p->two->path);
else
path = p->two->path;
printf("%s%c", path, line_termination);
if (p->two->path != path)
free(path);
}
int diff_unmodified_pair(struct diff_filepair *p)
{
/* This function is written stricter than necessary to support
* the currently implemented transformers, but the idea is to
* let transformers to produce diff_filepairs any way they want,
* and filter and clean them up here before producing the output.
*/
struct diff_filespec *one, *two;
if (DIFF_PAIR_UNMERGED(p))
return 0; /* unmerged is interesting */
one = p->one;
two = p->two;
/* deletion, addition, mode or type change
* and rename are all interesting.
*/
if (DIFF_FILE_VALID(one) != DIFF_FILE_VALID(two) ||
DIFF_PAIR_MODE_CHANGED(p) ||
strcmp(one->path, two->path))
return 0;
/* both are valid and point at the same path. that is, we are
* dealing with a change.
*/
if (one->sha1_valid && two->sha1_valid &&
!memcmp(one->sha1, two->sha1, sizeof(one->sha1)))
return 1; /* no change */
if (!one->sha1_valid && !two->sha1_valid)
return 1; /* both look at the same file on the filesystem. */
return 0;
}
static void diff_flush_patch(struct diff_filepair *p, struct diff_options *o)
{
if (diff_unmodified_pair(p))
return;
if ((DIFF_FILE_VALID(p->one) && S_ISDIR(p->one->mode)) ||
(DIFF_FILE_VALID(p->two) && S_ISDIR(p->two->mode)))
return; /* no tree diffs in patch format */
run_diff(p, o);
}
static void diff_flush_stat(struct diff_filepair *p, struct diff_options *o,
struct diffstat_t *diffstat)
{
if (diff_unmodified_pair(p))
return;
if ((DIFF_FILE_VALID(p->one) && S_ISDIR(p->one->mode)) ||
(DIFF_FILE_VALID(p->two) && S_ISDIR(p->two->mode)))
return; /* no tree diffs in patch format */
run_diffstat(p, o, diffstat);
}
int diff_queue_is_empty(void)
{
struct diff_queue_struct *q = &diff_queued_diff;
int i;
for (i = 0; i < q->nr; i++)
if (!diff_unmodified_pair(q->queue[i]))
return 0;
return 1;
}
#if DIFF_DEBUG
void diff_debug_filespec(struct diff_filespec *s, int x, const char *one)
{
fprintf(stderr, "queue[%d] %s (%s) %s %06o %s\n",
x, one ? one : "",
s->path,
DIFF_FILE_VALID(s) ? "valid" : "invalid",
s->mode,
s->sha1_valid ? sha1_to_hex(s->sha1) : "");
fprintf(stderr, "queue[%d] %s size %lu flags %d\n",
x, one ? one : "",
s->size, s->xfrm_flags);
}
void diff_debug_filepair(const struct diff_filepair *p, int i)
{
diff_debug_filespec(p->one, i, "one");
diff_debug_filespec(p->two, i, "two");
fprintf(stderr, "score %d, status %c stays %d broken %d\n",
p->score, p->status ? p->status : '?',
p->source_stays, p->broken_pair);
}
void diff_debug_queue(const char *msg, struct diff_queue_struct *q)
{
int i;
if (msg)
fprintf(stderr, "%s\n", msg);
fprintf(stderr, "q->nr = %d\n", q->nr);
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
diff_debug_filepair(p, i);
}
}
#endif
static void diff_resolve_rename_copy(void)
{
int i, j;
struct diff_filepair *p, *pp;
struct diff_queue_struct *q = &diff_queued_diff;
diff_debug_queue("resolve-rename-copy", q);
for (i = 0; i < q->nr; i++) {
p = q->queue[i];
p->status = 0; /* undecided */
if (DIFF_PAIR_UNMERGED(p))
p->status = DIFF_STATUS_UNMERGED;
else if (!DIFF_FILE_VALID(p->one))
p->status = DIFF_STATUS_ADDED;
else if (!DIFF_FILE_VALID(p->two))
p->status = DIFF_STATUS_DELETED;
else if (DIFF_PAIR_TYPE_CHANGED(p))
p->status = DIFF_STATUS_TYPE_CHANGED;
/* from this point on, we are dealing with a pair
* whose both sides are valid and of the same type, i.e.
* either in-place edit or rename/copy edit.
*/
else if (DIFF_PAIR_RENAME(p)) {
if (p->source_stays) {
p->status = DIFF_STATUS_COPIED;
continue;
}
/* See if there is some other filepair that
* copies from the same source as us. If so
* we are a copy. Otherwise we are either a
* copy if the path stays, or a rename if it
* does not, but we already handled "stays" case.
*/
for (j = i + 1; j < q->nr; j++) {
pp = q->queue[j];
if (strcmp(pp->one->path, p->one->path))
continue; /* not us */
if (!DIFF_PAIR_RENAME(pp))
continue; /* not a rename/copy */
/* pp is a rename/copy from the same source */
p->status = DIFF_STATUS_COPIED;
break;
}
if (!p->status)
p->status = DIFF_STATUS_RENAMED;
}
else if (memcmp(p->one->sha1, p->two->sha1, 20) ||
p->one->mode != p->two->mode)
p->status = DIFF_STATUS_MODIFIED;
else {
/* This is a "no-change" entry and should not
* happen anymore, but prepare for broken callers.
*/
error("feeding unmodified %s to diffcore",
p->one->path);
p->status = DIFF_STATUS_UNKNOWN;
}
}
diff_debug_queue("resolve-rename-copy done", q);
}
static void flush_one_pair(struct diff_filepair *p,
int diff_output_format,
struct diff_options *options,
struct diffstat_t *diffstat)
{
int inter_name_termination = '\t';
int line_termination = options->line_termination;
if (!line_termination)
inter_name_termination = 0;
switch (p->status) {
case DIFF_STATUS_UNKNOWN:
break;
case 0:
die("internal error in diff-resolve-rename-copy");
break;
default:
switch (diff_output_format) {
case DIFF_FORMAT_DIFFSTAT:
diff_flush_stat(p, options, diffstat);
break;
case DIFF_FORMAT_PATCH:
diff_flush_patch(p, options);
break;
case DIFF_FORMAT_RAW:
case DIFF_FORMAT_NAME_STATUS:
diff_flush_raw(p, line_termination,
inter_name_termination,
options, diff_output_format);
break;
case DIFF_FORMAT_NAME:
diff_flush_name(p,
inter_name_termination,
line_termination);
break;
case DIFF_FORMAT_NO_OUTPUT:
break;
}
}
}
void diff_flush(struct diff_options *options)
{
struct diff_queue_struct *q = &diff_queued_diff;
int i;
int diff_output_format = options->output_format;
struct diffstat_t *diffstat = NULL;
if (diff_output_format == DIFF_FORMAT_DIFFSTAT || options->with_stat) {
diffstat = xcalloc(sizeof (struct diffstat_t), 1);
diffstat->xm.consume = diffstat_consume;
}
if (options->with_raw) {
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
flush_one_pair(p, DIFF_FORMAT_RAW, options, NULL);
}
putchar(options->line_termination);
}
if (options->with_stat) {
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
flush_one_pair(p, DIFF_FORMAT_DIFFSTAT, options,
diffstat);
}
show_stats(diffstat);
free(diffstat);
diffstat = NULL;
putchar(options->line_termination);
}
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
flush_one_pair(p, diff_output_format, options, diffstat);
diff_free_filepair(p);
}
if (diffstat) {
show_stats(diffstat);
free(diffstat);
}
free(q->queue);
q->queue = NULL;
q->nr = q->alloc = 0;
}
static void diffcore_apply_filter(const char *filter)
{
int i;
struct diff_queue_struct *q = &diff_queued_diff;
struct diff_queue_struct outq;
outq.queue = NULL;
outq.nr = outq.alloc = 0;
if (!filter)
return;
if (strchr(filter, DIFF_STATUS_FILTER_AON)) {
int found;
for (i = found = 0; !found && i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
if (((p->status == DIFF_STATUS_MODIFIED) &&
((p->score &&
strchr(filter, DIFF_STATUS_FILTER_BROKEN)) ||
(!p->score &&
strchr(filter, DIFF_STATUS_MODIFIED)))) ||
((p->status != DIFF_STATUS_MODIFIED) &&
strchr(filter, p->status)))
found++;
}
if (found)
return;
/* otherwise we will clear the whole queue
* by copying the empty outq at the end of this
* function, but first clear the current entries
* in the queue.
*/
for (i = 0; i < q->nr; i++)
diff_free_filepair(q->queue[i]);
}
else {
/* Only the matching ones */
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
if (((p->status == DIFF_STATUS_MODIFIED) &&
((p->score &&
strchr(filter, DIFF_STATUS_FILTER_BROKEN)) ||
(!p->score &&
strchr(filter, DIFF_STATUS_MODIFIED)))) ||
((p->status != DIFF_STATUS_MODIFIED) &&
strchr(filter, p->status)))
diff_q(&outq, p);
else
diff_free_filepair(p);
}
}
free(q->queue);
*q = outq;
}
void diffcore_std(struct diff_options *options)
{
if (options->break_opt != -1)
diffcore_break(options->break_opt);
if (options->detect_rename)
diffcore_rename(options);
if (options->break_opt != -1)
diffcore_merge_broken();
if (options->pickaxe)
diffcore_pickaxe(options->pickaxe, options->pickaxe_opts);
if (options->orderfile)
diffcore_order(options->orderfile);
diff_resolve_rename_copy();
diffcore_apply_filter(options->filter);
}
void diffcore_std_no_resolve(struct diff_options *options)
{
if (options->pickaxe)
diffcore_pickaxe(options->pickaxe, options->pickaxe_opts);
if (options->orderfile)
diffcore_order(options->orderfile);
diffcore_apply_filter(options->filter);
}
void diff_addremove(struct diff_options *options,
int addremove, unsigned mode,
const unsigned char *sha1,
const char *base, const char *path)
{
char concatpath[PATH_MAX];
struct diff_filespec *one, *two;
/* This may look odd, but it is a preparation for
* feeding "there are unchanged files which should
* not produce diffs, but when you are doing copy
* detection you would need them, so here they are"
* entries to the diff-core. They will be prefixed
* with something like '=' or '*' (I haven't decided
* which but should not make any difference).
* Feeding the same new and old to diff_change()
* also has the same effect.
* Before the final output happens, they are pruned after
* merged into rename/copy pairs as appropriate.
*/
if (options->reverse_diff)
addremove = (addremove == '+' ? '-' :
addremove == '-' ? '+' : addremove);
if (!path) path = "";
sprintf(concatpath, "%s%s", base, path);
one = alloc_filespec(concatpath);
two = alloc_filespec(concatpath);
if (addremove != '+')
fill_filespec(one, sha1, mode);
if (addremove != '-')
fill_filespec(two, sha1, mode);
diff_queue(&diff_queued_diff, one, two);
}
void diff_change(struct diff_options *options,
unsigned old_mode, unsigned new_mode,
const unsigned char *old_sha1,
const unsigned char *new_sha1,
const char *base, const char *path)
{
char concatpath[PATH_MAX];
struct diff_filespec *one, *two;
if (options->reverse_diff) {
unsigned tmp;
const unsigned char *tmp_c;
tmp = old_mode; old_mode = new_mode; new_mode = tmp;
tmp_c = old_sha1; old_sha1 = new_sha1; new_sha1 = tmp_c;
}
if (!path) path = "";
sprintf(concatpath, "%s%s", base, path);
one = alloc_filespec(concatpath);
two = alloc_filespec(concatpath);
fill_filespec(one, old_sha1, old_mode);
fill_filespec(two, new_sha1, new_mode);
diff_queue(&diff_queued_diff, one, two);
}
void diff_unmerge(struct diff_options *options,
const char *path)
{
struct diff_filespec *one, *two;
one = alloc_filespec(path);
two = alloc_filespec(path);
diff_queue(&diff_queued_diff, one, two);
}

11
diff.h
View File

@ -28,10 +28,11 @@ struct diff_options {
with_raw:1,
with_stat:1,
tree_in_recursive:1,
full_index:1;
full_index:1,
silent_on_remove:1,
find_copies_harder:1;
int break_opt;
int detect_rename;
int find_copies_harder;
int line_termination;
int output_format;
int pickaxe_opts;
@ -74,6 +75,8 @@ struct combine_diff_path {
extern void show_combined_diff(struct combine_diff_path *elem, int num_parent,
int dense, struct rev_info *);
extern void diff_tree_combined(const unsigned char *sha1, const unsigned char parent[][20], int num_parent, int dense, struct rev_info *rev);
extern void diff_tree_combined_merge(const unsigned char *sha1, int, struct rev_info *);
extern void diff_addremove(struct diff_options *,
@ -168,4 +171,8 @@ extern void diff_flush(struct diff_options*);
extern const char *diff_unique_abbrev(const unsigned char *, int);
extern int run_diff_files(struct rev_info *revs, int silent_on_removed);
extern int run_diff_index(struct rev_info *revs, int cached);
#endif /* DIFF_H */

2
environment.c
View File

@ -13,7 +13,7 @@ char git_default_email[MAX_GITNAME];
char git_default_name[MAX_GITNAME];
int trust_executable_bit = 1;
int assume_unchanged = 0;
int only_use_symrefs = 0;
int prefer_symlink_refs = 0;
int warn_ambiguous_refs = 1;
int repository_format_version = 0;
char git_commit_encoding[MAX_ENCODING_LENGTH] = "utf-8";

31
git-am.sh
View File

@ -14,6 +14,26 @@ stop_here () {
exit 1
}
stop_here_user_resolve () {
cmdline=$(basename $0)
if test '' != "$interactive"
then
cmdline="$cmdline -i"
fi
if test '' != "$threeway"
then
cmdline="$cmdline -3"
fi
if test '.dotest' != "$dotest"
then
cmdline="$cmdline -d=$dotest"
fi
echo "When you have resolved this problem run \"$cmdline --resolved\"."
echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"."
stop_here $1
}
go_next () {
rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \
"$dotest/patch" "$dotest/info"
@ -374,7 +394,14 @@ do
if test '' = "$changed"
then
echo "No changes - did you forget update-index?"
stop_here $this
stop_here_user_resolve $this
fi
unmerged=$(git-ls-files -u)
if test -n "$unmerged"
then
echo "You still have unmerged paths in your index"
echo "did you forget update-index?"
stop_here_user_resolve $this
fi
apply_status=0
;;
@ -400,7 +427,7 @@ do
if test $apply_status != 0
then
echo Patch failed at $msgnum.
stop_here $this
stop_here_user_resolve $this
fi
if test -x "$GIT_DIR"/hooks/pre-applypatch

10
git-annotate.perl
View File

@ -10,9 +10,10 @@
use strict;
use Getopt::Long;
use POSIX qw(strftime gmtime);
use File::Basename qw(basename dirname);
sub usage() {
print STDERR 'Usage: ${\basename $0} [-s] [-S revs-file] file [ revision ]
print STDERR "Usage: ${\basename $0} [-s] [-S revs-file] file [ revision ]
-l, --long
Show long rev (Defaults off)
-t, --time
@ -23,7 +24,7 @@ ()
Use revs from revs-file instead of calling git-rev-list
-h, --help
This message.
';
";
exit(1);
}
@ -35,7 +36,7 @@ ()
"help|h" => \$help,
"rename|r" => \$rename,
"rev-file|S=s" => \$rev_file);
if (!$rc or $help) {
if (!$rc or $help or !@ARGV) {
usage();
}
@ -208,6 +209,9 @@ sub find_parent_renames {
while (my $change = <$patch>) {
chomp $change;
my $filename = <$patch>;
if (!defined $filename) {
next;
}
chomp $filename;
if ($change =~ m/^[AMD]$/ ) {

2
git-branch.sh
View File

@ -1,6 +1,6 @@
#!/bin/sh
USAGE='[(-d | -D) <branchname>] | [[-f] <branchname> [<start-point>]]'
USAGE='[(-d | -D) <branchname>] | [[-f] <branchname> [<start-point>]] | -r'
LONG_USAGE='If no arguments, show available branches and mark current branch with a star.
If one argument, create a new branch <branchname> based off of current HEAD.
If two arguments, create a new branch <branchname> based off of <start-point>.'

31
git-count-objects.sh
View File

@ -1,31 +0,0 @@
#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#
GIT_DIR=`git-rev-parse --git-dir` || exit $?
dc </dev/null 2>/dev/null || {
# This is not a real DC at all -- it just knows how
# this script feeds DC and does the computation itself.
dc () {
while read a b
do
case $a,$b in
0,) acc=0 ;;
*,+) acc=$(($acc + $a)) ;;
p,) echo "$acc" ;;
esac
done
}
}
echo $(find "$GIT_DIR/objects"/?? -type f -print 2>/dev/null | wc -l) objects, \
$({
echo 0
# "no-such" is to help Darwin folks by not using xargs -r.
find "$GIT_DIR/objects"/?? -type f -print 2>/dev/null |
xargs du -k "$GIT_DIR/objects/no-such" 2>/dev/null |
sed -e 's/[ ].*/ +/'
echo p
} | dc) kilobytes

25
git-cvsserver.perl
View File

@ -88,7 +88,7 @@
$log->debug("Temporary directory is '$TEMP_DIR'");
# if we are called with a pserver argument,
# deal with the authentication cat before entereing the
# deal with the authentication cat before entering the
# main loop
if (@ARGV && $ARGV[0] eq 'pserver') {
my $line = <STDIN>; chomp $line;
@ -117,7 +117,7 @@
{
chomp;
# Check to see if we've seen this method, and call appropiate function.
# Check to see if we've seen this method, and call appropriate function.
if ( /^([\w-]+)(?:\s+(.*))?$/ and defined($methods->{$1}) )
{
# use the $methods hash to call the appropriate sub for this command
@ -171,11 +171,11 @@ sub req_Root
return 0;
}
my @gitvars = `git-var -l`;
my @gitvars = `git-repo-config -l`;
if ($?) {
print "E problems executing git-var on the server -- this is not a git repository or the PATH is not set correcly.\n";
print "E problems executing git-repo-config on the server -- this is not a git repository or the PATH is not set correctly.\n";
print "E \n";
print "error 1 - problem executing git-var\n";
print "error 1 - problem executing git-repo-config\n";
return 0;
}
foreach my $line ( @gitvars )
@ -224,7 +224,7 @@ sub req_Globaloption
sub req_Validresponses
{
my ( $cmd, $data ) = @_;
$log->debug("req_Validrepsonses : $data");
$log->debug("req_Validresponses : $data");
# TODO : re-enable this, currently it's not particularly useful
#$state->{validresponses} = [ split /\s+/, $data ];
@ -733,7 +733,7 @@ sub req_update
argsplit("update");
#
# It may just be a client exploring the available heads/modukles
# It may just be a client exploring the available heads/modules
# in that case, list them as top level directories and leave it
# at that. Eclipse uses this technique to offer you a list of
# projects (heads in this case) to checkout.
@ -1731,7 +1731,7 @@ sub transmitfile
}
# This method takes a file name, and returns ( $dirpart, $filepart ) which
# refers to the directory porition and the file portion of the filename
# refers to the directory portion and the file portion of the filename
# respectively
sub filenamesplit
{
@ -1790,7 +1790,7 @@ =head1 METHODS
=head2 new
Creates a new log object, optionally you can specify a filename here to
indicate the file to log to. If no log file is specified, you can specifiy one
indicate the file to log to. If no log file is specified, you can specify one
later with method setfile, or indicate you no longer want logging with method
nofile.
@ -2076,14 +2076,15 @@ sub update
# TODO: log processing is memory bound
# if we can parse into a 2nd file that is in reverse order
# we can probably do something really efficient
my @git_log_params = ('--parents', '--topo-order');
my @git_log_params = ('--pretty', '--parents', '--topo-order');
if (defined $lastcommit) {
push @git_log_params, "$lastcommit..$self->{module}";
} else {
push @git_log_params, $self->{module};
}
open(GITLOG, '-|', 'git-log', @git_log_params) or die "Cannot call git-log: $!";
# git-rev-list is the backend / plumbing version of git-log
open(GITLOG, '-|', 'git-rev-list', @git_log_params) or die "Cannot call git-rev-list: $!";
my @commits;
@ -2595,7 +2596,7 @@ sub in_array
=head2 safe_pipe_capture
an alterative to `command` that allows input to be passed as an array
an alternative to `command` that allows input to be passed as an array
to work around shell problems with weird characters in arguments
=cut

74
git-diff.sh
View File

@ -1,74 +0,0 @@
#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
# Copyright (c) 2005 Junio C Hamano
USAGE='[ --diff-options ] <ent>{0,2} [<path>...]'
SUBDIRECTORY_OK='Yes'
. git-sh-setup
rev=$(git-rev-parse --revs-only --no-flags --sq "$@") || exit
flags=$(git-rev-parse --no-revs --flags --sq "$@")
files=$(git-rev-parse --no-revs --no-flags --sq "$@")
# I often say 'git diff --cached -p' and get scolded by git-diff-files, but
# obviously I mean 'git diff --cached -p HEAD' in that case.
case "$rev" in
'')
case " $flags " in
*" '--cached' "*)
rev='HEAD '
;;
esac
esac
# If we have -[123] --ours --theirs --base, don't do --cc by default.
case " $flags " in
*" '-"[123]"' "* | *" '--ours' "* | *" '--base' "* | *" '--theirs' "*)
cc_or_p=-p ;;
*)
cc_or_p=--cc ;;
esac
# If we do not have --name-status, --name-only, -r, -c or --stat,
# default to --cc.
case " $flags " in
*" '--name-status' "* | *" '--name-only' "* | *" '-r' "* | *" '-c' "* | \
*" '--stat' "*)
;;
*)
flags="$flags'$cc_or_p' " ;;
esac
# If we do not have -B, -C, -r, nor -p, default to -M.
case " $flags " in
*" '-"[BCMrp]* | *" '--find-copies-harder' "*)
;; # something like -M50.
*)
flags="$flags'-M' " ;;
esac
case "$rev" in
?*' '?*' '?*)
usage
;;
?*' '^?*)
begin=$(expr "$rev" : '.*^.\([0-9a-f]*\).*') &&
end=$(expr "$rev" : '.\([0-9a-f]*\). .*') || exit
cmd="git-diff-tree $flags $begin $end -- $files"
;;
?*' '?*)
cmd="git-diff-tree $flags $rev -- $files"
;;
?*' ')
cmd="git-diff-index $flags $rev -- $files"
;;
'')
cmd="git-diff-files $flags -- $files"
;;
*)
usage
;;
esac
eval "$cmd"

16
git-fetch.sh
View File

@ -270,14 +270,22 @@ fetch_main () {
if [ -n "$GIT_SSL_NO_VERIFY" ]; then
curl_extra_args="-k"
fi
remote_name_quoted=$(perl -e '
max_depth=5
depth=0
head="ref: $remote_name"
while (expr "z$head" : "zref:" && expr $depth \< $max_depth) >/dev/null
do
remote_name_quoted=$(perl -e '
my $u = $ARGV[0];
$u =~ s/^ref:\s*//;
$u =~ s{([^-a-zA-Z0-9/.])}{sprintf"%%%02x",ord($1)}eg;
print "$u";
' "$remote_name")
head=$(curl -nsfL $curl_extra_args "$remote/$remote_name_quoted") &&
' "$head")
head=$(curl -nsfL $curl_extra_args "$remote/$remote_name_quoted")
depth=$( expr \( $depth + 1 \) )
done
expr "z$head" : "z$_x40\$" >/dev/null ||
die "Failed to fetch $remote_name from $remote"
die "Failed to fetch $remote_name from $remote"
echo >&2 Fetching "$remote_name from $remote" using http
git-http-fetch -v -a "$head" "$remote/" || exit
;;

9
git-format-patch.sh
View File

@ -205,11 +205,10 @@ sub show_date {
}
my $t = $time + $minutes * 60;
my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday) = gmtime($t);
return sprintf("%s %s %d %02d:%02d:%02d %d %+05d",
$weekday_names[$wday],
$month_names[$mon],
$mday, $hour, $min, $sec,
$year+1900, $tz);
return sprintf("%s, %d %s %d %02d:%02d:%02d %+05d",
$weekday_names[$wday], $mday,
$month_names[$mon], $year+1900,
$hour, $min, $sec, $tz);
}
print "From nobody Mon Sep 17 00:00:00 2001\n";

56
git-rebase.sh
View File

@ -4,37 +4,51 @@
#
USAGE='[--onto <newbase>] <upstream> [<branch>]'
LONG_USAGE='git-rebase applies to <upstream> (or optionally to <newbase>) commits
from <branch> that do not appear in <upstream>. When <branch> is not
specified it defaults to the current branch (HEAD).
LONG_USAGE='git-rebase replaces <branch> with a new branch of the
same name. When the --onto option is provided the new branch starts
out with a HEAD equal to <newbase>, otherwise it is equal to <upstream>
It then attempts to create a new commit for each commit from the original
<branch> that does not exist in the <upstream> branch.
When git-rebase is complete, <branch> will be updated to point to the
newly created line of commit objects, so the previous line will not be
accessible unless there are other references to it already.
It is possible that a merge failure will prevent this process from being
completely automatic. You will have to resolve any such merge failure
and run git-rebase --continue. If you can not resolve the merge failure,
running git-rebase --abort will restore the original <branch> and remove
the working files found in the .dotest directory.
Assuming the following history:
Note that if <branch> is not specified on the command line, the
currently checked out branch is used. You must be in the top
directory of your project to start (or continue) a rebase.
A---B---C topic
/
D---E---F---G master
Example: git-rebase master~1 topic
The result of the following command:
git-rebase --onto master~1 master topic
would be:
A'\''--B'\''--C'\'' topic
/
D---E---F---G master
A---B---C topic A'\''--B'\''--C'\'' topic
/ --> /
D---E---F---G master D---E---F---G master
'
. git-sh-setup
unset newbase
while case "$#" in 0) break ;; esac
do
case "$1" in
--continue)
diff=$(git-diff-files)
case "$diff" in
?*) echo "You must edit all merge conflicts and then"
echo "mark them as resolved using git update-index"
exit 1
;;
esac
git am --resolved --3way
exit
;;
--abort)
[ -d .dotest ] || die "No rebase in progress?"
git reset --hard ORIG_HEAD
rm -r .dotest
exit
;;
--onto)
test 2 -le "$#" || usage
newbase="$2"
@ -107,7 +121,7 @@ onto=$(git-rev-parse --verify "${onto_name}^0") || exit
# Check if we are already based on $onto, but this should be
# done only when upstream and onto are the same.
if test "$upstream" = "onto"
if test "$upstream" = "$onto"
then
mb=$(git-merge-base "$onto" "$branch")
if test "$mb" = "$onto"

9
git-send-email.perl
View File

@ -291,6 +291,13 @@ sub send_message
my $to = join (",\n\t", @recipients);
@recipients = unique_email_list(@recipients,@cc);
my $date = strftime('%a, %d %b %Y %H:%M:%S %z', localtime($time++));
my $gitversion = '@@GIT_VERSION@@';
if ($gitversion =~ m/..GIT_VERSION../) {
$gitversion = `git --version`;
chomp $gitversion;
# keep only what's after the last space
$gitversion =~ s/^.* //;
}
my $header = "From: $from
To: $to
@ -299,7 +306,7 @@ sub send_message
Reply-To: $from
Date: $date
Message-Id: $message_id
X-Mailer: git-send-email @@GIT_VERSION@@
X-Mailer: git-send-email $gitversion
";
$header .= "In-Reply-To: $reply_to\n" if $reply_to;

28
git-whatchanged.sh
View File

@ -1,28 +0,0 @@
#!/bin/sh
USAGE='[-p] [--max-count=<n>] [<since>..<limit>] [--pretty=<format>] [-m] [git-diff-tree options] [git-rev-list options]'
SUBDIRECTORY_OK='Yes'
. git-sh-setup
diff_tree_flags=$(git-rev-parse --sq --no-revs --flags "$@") || exit
case "$0" in
*whatchanged)
count=
test -z "$diff_tree_flags" &&
diff_tree_flags=$(git-repo-config --get whatchanged.difftree)
diff_tree_default_flags='-c -M --abbrev' ;;
*show)
count=-n1
test -z "$diff_tree_flags" &&
diff_tree_flags=$(git-repo-config --get show.difftree)
diff_tree_default_flags='--cc --always' ;;
esac
test -z "$diff_tree_flags" &&
diff_tree_flags="$diff_tree_default_flags"
rev_list_args=$(git-rev-parse --sq --default HEAD --revs-only "$@") &&
diff_tree_args=$(git-rev-parse --sq --no-revs --no-flags "$@") &&
eval "git-rev-list $count $rev_list_args" |
eval "git-diff-tree --stdin --pretty -r $diff_tree_flags $diff_tree_args" |
LESS="$LESS -S" ${PAGER:-less}

4
git.c
View File

@ -8,7 +8,6 @@
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <sys/ioctl.h>
#include "git-compat-util.h"
#include "exec_cmd.h"
@ -47,7 +46,10 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
{ "log", cmd_log },
{ "whatchanged", cmd_whatchanged },
{ "show", cmd_show },
{ "push", cmd_push },
{ "fmt-patch", cmd_format_patch },
{ "count-objects", cmd_count_objects },
{ "diff", cmd_diff },
};
int i;

1793
gitk
View File

@ -16,99 +16,112 @@ proc gitdir {} {
}
}
proc parse_args {rargs} {
global parsed_args
if {[catch {
set parse_args [concat --default HEAD $rargs]
set parsed_args [split [eval exec git-rev-parse $parse_args] "\n"]
}]} {
# if git-rev-parse failed for some reason...
if {$rargs == {}} {
set rargs HEAD
}
set parsed_args $rargs
}
return $parsed_args
}
proc start_rev_list {rlargs} {
proc start_rev_list {view} {
global startmsecs nextupdate ncmupdate
global commfd leftover tclencoding datemode
global viewargs viewfiles commitidx
set startmsecs [clock clicks -milliseconds]
set nextupdate [expr {$startmsecs + 100}]
set ncmupdate 1
initlayout
set commitidx($view) 0
set args $viewargs($view)
if {$viewfiles($view) ne {}} {
set args [concat $args "--" $viewfiles($view)]
}
set order "--topo-order"
if {$datemode} {
set order "--date-order"
}
if {[catch {
set commfd [open [concat | git-rev-list --header $order \
--parents --boundary $rlargs] r]
set fd [open [concat | git-rev-list --header $order \
--parents --boundary --default HEAD $args] r]
} err]} {
puts stderr "Error executing git-rev-list: $err"
exit 1
}
set leftover {}
fconfigure $commfd -blocking 0 -translation lf
set commfd($view) $fd
set leftover($view) {}
fconfigure $fd -blocking 0 -translation lf
if {$tclencoding != {}} {
fconfigure $commfd -encoding $tclencoding
fconfigure $fd -encoding $tclencoding
}
fileevent $commfd readable [list getcommitlines $commfd]
. config -cursor watch
settextcursor watch
fileevent $fd readable [list getcommitlines $fd $view]
nowbusy $view
}
proc getcommits {rargs} {
global phase canv mainfont
proc stop_rev_list {} {
global commfd curview
if {![info exists commfd($curview)]} return
set fd $commfd($curview)
catch {
set pid [pid $fd]
exec kill $pid
}
catch {close $fd}
unset commfd($curview)
}
proc getcommits {} {
global phase canv mainfont curview
set phase getcommits
start_rev_list [parse_args $rargs]
$canv delete all
$canv create text 3 3 -anchor nw -text "Reading commits..." \
-font $mainfont -tags textitems
initlayout
start_rev_list $curview
show_status "Reading commits..."
}
proc getcommitlines {commfd} {
proc getcommitlines {fd view} {
global commitlisted nextupdate
global leftover
global leftover commfd
global displayorder commitidx commitrow commitdata
global parentlist childlist children
global parentlist childlist children curview hlview
global vparentlist vchildlist vdisporder vcmitlisted
set stuff [read $commfd]
set stuff [read $fd]
if {$stuff == {}} {
if {![eof $commfd]} return
if {![eof $fd]} return
global viewname
unset commfd($view)
notbusy $view
# set it blocking so we wait for the process to terminate
fconfigure $commfd -blocking 1
if {![catch {close $commfd} err]} {
fconfigure $fd -blocking 1
if {[catch {close $fd} err]} {
set fv {}
if {$view != $curview} {
set fv " for the \"$viewname($view)\" view"
}
if {[string range $err 0 4] == "usage"} {
set err "Gitk: error reading commits$fv:\
bad arguments to git-rev-list."
if {$viewname($view) eq "Command line"} {
append err \
" (Note: arguments to gitk are passed to git-rev-list\
to allow selection of commits to be displayed.)"
}
} else {
set err "Error reading commits$fv: $err"
}
error_popup $err
}
if {$view == $curview} {
after idle finishcommits
return
}
if {[string range $err 0 4] == "usage"} {
set err \
"Gitk: error reading commits: bad arguments to git-rev-list.\
(Note: arguments to gitk are passed to git-rev-list\
to allow selection of commits to be displayed.)"
} else {
set err "Error reading commits: $err"
}
error_popup $err
exit 1
return
}
set start 0
set gotsome 0
while 1 {
set i [string first "\0" $stuff $start]
if {$i < 0} {
append leftover [string range $stuff $start end]
append leftover($view) [string range $stuff $start end]
break
}
if {$start == 0} {
set cmit $leftover
set cmit $leftover($view)
append cmit [string range $stuff 0 [expr {$i - 1}]]
set leftover {}
set leftover($view) {}
} else {
set cmit [string range $stuff $start [expr {$i - 1}]]
}
@ -141,41 +154,52 @@ proc getcommitlines {commfd} {
set id [lindex $ids 0]
if {$listed} {
set olds [lrange $ids 1 end]
if {[llength $olds] > 1} {
set olds [lsort -unique $olds]
}
set i 0
foreach p $olds {
lappend children($p) $id
if {$i == 0 || [lsearch -exact $olds $p] >= $i} {
lappend children($view,$p) $id
}
incr i
}
} else {
set olds {}
}
lappend parentlist $olds
if {[info exists children($id)]} {
lappend childlist $children($id)
} else {
lappend childlist {}
if {![info exists children($view,$id)]} {
set children($view,$id) {}
}
set commitdata($id) [string range $cmit [expr {$j + 1}] end]
set commitrow($id) $commitidx
incr commitidx
lappend displayorder $id
lappend commitlisted $listed
set commitrow($view,$id) $commitidx($view)
incr commitidx($view)
if {$view == $curview} {
lappend parentlist $olds
lappend childlist $children($view,$id)
lappend displayorder $id
lappend commitlisted $listed
} else {
lappend vparentlist($view) $olds
lappend vchildlist($view) $children($view,$id)
lappend vdisporder($view) $id
lappend vcmitlisted($view) $listed
}
set gotsome 1
}
if {$gotsome} {
layoutmore
if {$view == $curview} {
layoutmore
} elseif {[info exists hlview] && $view == $hlview} {
highlightmore
}
}
if {[clock clicks -milliseconds] >= $nextupdate} {
doupdate 1
doupdate
}
}
proc doupdate {reading} {
proc doupdate {} {
global commfd nextupdate numcommits ncmupdate
if {$reading} {
fileevent $commfd readable {}
foreach v [array names commfd] {
fileevent $commfd($v) readable {}
}
update
set nextupdate [expr {[clock clicks -milliseconds] + 100}]
@ -186,8 +210,9 @@ proc doupdate {reading} {
} else {
set ncmupdate [expr {$numcommits + 100}]
}
if {$reading} {
fileevent $commfd readable [list getcommitlines $commfd]
foreach v [array names commfd] {
set fd $commfd($v)
fileevent $fd readable [list getcommitlines $fd $v]
}
}
@ -196,18 +221,23 @@ proc readcommit {id} {
parsecommit $id $contents 0
}
proc updatecommits {rargs} {
stopfindproc
foreach v {colormap selectedline matchinglines treediffs
mergefilelist currentid rowtextx commitrow
rowidlist rowoffsets idrowranges idrangedrawn iddrawn
linesegends crossings cornercrossings} {
global $v
catch {unset $v}
proc updatecommits {} {
global viewdata curview phase displayorder
global children commitrow
if {$phase ne {}} {
stop_rev_list
set phase {}
}
allcanvs delete all
set n $curview
foreach id $displayorder {
catch {unset children($n,$id)}
catch {unset commitrow($n,$id)}
}
set curview -1
catch {unset viewdata($n)}
readrefs
getcommits $rargs
showview $n
}
proc parsecommit {id contents listed} {
@ -290,10 +320,16 @@ proc readrefs {} {
match id path]} {
continue
}
if {[regexp {^remotes/.*/HEAD$} $path match]} {
continue
}
if {![regexp {^(tags|heads)/(.*)$} $path match type name]} {
set type others
set name $path
}
if {[regexp {^remotes/} $path match]} {
set type heads
}
if {$type == "tags"} {
set tagids($name) $id
lappend idtags($id) $name
@ -321,10 +357,7 @@ proc readrefs {} {
close $refd
}
proc error_popup msg {
set w .error
toplevel $w
wm transient $w .
proc show_error {w msg} {
message $w.m -text $msg -justify center -aspect 400
pack $w.m -side top -fill x -padx 20 -pady 20
button $w.ok -text OK -command "destroy $w"
@ -334,8 +367,16 @@ proc error_popup msg {
tkwait window $w
}
proc makewindow {rargs} {
global canv canv2 canv3 linespc charspc ctext cflist textfont mainfont uifont
proc error_popup msg {
set w .error
toplevel $w
wm transient $w .
show_error $w $msg
}
proc makewindow {} {
global canv canv2 canv3 linespc charspc ctext cflist
global textfont mainfont uifont
global findtype findtypemenu findloc findstring fstring geometry
global entries sha1entry sha1string sha1but
global maincursor textcursor curtextcursor
@ -345,7 +386,7 @@ proc makewindow {rargs} {
.bar add cascade -label "File" -menu .bar.file
.bar configure -font $uifont
menu .bar.file
.bar.file add command -label "Update" -command [list updatecommits $rargs]
.bar.file add command -label "Update" -command updatecommits
.bar.file add command -label "Reread references" -command rereadrefs
.bar.file add command -label "Quit" -command doquit
.bar.file configure -font $uifont
@ -353,6 +394,23 @@ proc makewindow {rargs} {
.bar add cascade -label "Edit" -menu .bar.edit
.bar.edit add command -label "Preferences" -command doprefs
.bar.edit configure -font $uifont
menu .bar.view -font $uifont
menu .bar.view.hl -font $uifont -tearoff 0
.bar add cascade -label "View" -menu .bar.view
.bar.view add command -label "New view..." -command {newview 0}
.bar.view add command -label "Edit view..." -command editview \
-state disabled
.bar.view add command -label "Delete view" -command delview -state disabled
.bar.view add cascade -label "Highlight" -menu .bar.view.hl
.bar.view add separator
.bar.view add radiobutton -label "All files" -command {showview 0} \
-variable selectedview -value 0
.bar.view.hl add command -label "New view..." -command {newview 1}
.bar.view.hl add command -label "Remove" -command delhighlight \
-state disabled
.bar.view.hl add separator
menu .bar.help
.bar add cascade -label "Help" -menu .bar.help
.bar.help add command -label "About gitk" -command about
@ -463,7 +521,7 @@ proc makewindow {rargs} {
set ctext .ctop.cdet.left.ctext
text $ctext -bg white -state disabled -font $textfont \
-width $geometry(ctextw) -height $geometry(ctexth) \
-yscrollcommand ".ctop.cdet.left.sb set" -wrap none
-yscrollcommand {.ctop.cdet.left.sb set} -wrap none
scrollbar .ctop.cdet.left.sb -command "$ctext yview"
pack .ctop.cdet.left.sb -side right -fill y
pack $ctext -side left -fill both -expand 1
@ -496,12 +554,25 @@ proc makewindow {rargs} {
$ctext tag conf found -back yellow
frame .ctop.cdet.right
frame .ctop.cdet.right.mode
radiobutton .ctop.cdet.right.mode.patch -text "Patch" \
-command reselectline -variable cmitmode -value "patch"
radiobutton .ctop.cdet.right.mode.tree -text "Tree" \
-command reselectline -variable cmitmode -value "tree"
grid .ctop.cdet.right.mode.patch .ctop.cdet.right.mode.tree -sticky ew
pack .ctop.cdet.right.mode -side top -fill x
set cflist .ctop.cdet.right.cfiles
listbox $cflist -bg white -selectmode extended -width $geometry(cflistw) \
-yscrollcommand ".ctop.cdet.right.sb set" -font $mainfont
set indent [font measure $mainfont "nn"]
text $cflist -width $geometry(cflistw) -background white -font $mainfont \
-tabs [list $indent [expr {2 * $indent}]] \
-yscrollcommand ".ctop.cdet.right.sb set" \
-cursor [. cget -cursor] \
-spacing1 1 -spacing3 1
scrollbar .ctop.cdet.right.sb -command "$cflist yview"
pack .ctop.cdet.right.sb -side right -fill y
pack $cflist -side left -fill both -expand 1
$cflist tag configure highlight \
-background [$cflist cget -selectbackground]
.ctop.cdet add .ctop.cdet.right
bind .ctop.cdet <Configure> {resizecdetpanes %W %w}
@ -553,12 +624,14 @@ proc makewindow {rargs} {
bind . <Control-KP_Add> {incrfont 1}
bind . <Control-minus> {incrfont -1}
bind . <Control-KP_Subtract> {incrfont -1}
bind $cflist <<ListboxSelect>> listboxsel
bind . <Destroy> {savestuff %W}
bind . <Button-1> "click %W"
bind $fstring <Key-Return> dofind
bind $sha1entry <Key-Return> gotocommit
bind $sha1entry <<PasteSelection>> clearsha1
bind $cflist <1> {sel_flist %W %x %y; break}
bind $cflist <B1-Motion> {sel_flist %W %x %y; break}
bind $cflist <ButtonRelease-1> {treeclick %W %x %y}
set maincursor [. cget -cursor]
set textcursor [$ctext cget -cursor]
@ -622,6 +695,8 @@ proc savestuff {w} {
global canv canv2 canv3 ctext cflist mainfont textfont uifont
global stuffsaved findmergefiles maxgraphpct
global maxwidth
global viewname viewfiles viewargs viewperm nextviewnum
global cmitmode
if {$stuffsaved} return
if {![winfo viewable .]} return
@ -633,6 +708,7 @@ proc savestuff {w} {
puts $f [list set findmergefiles $findmergefiles]
puts $f [list set maxgraphpct $maxgraphpct]
puts $f [list set maxwidth $maxwidth]
puts $f [list set cmitmode $cmitmode]
puts $f "set geometry(width) [winfo width .ctop]"
puts $f "set geometry(height) [winfo height .ctop]"
puts $f "set geometry(canv1) [expr {[winfo width $canv]-2}]"
@ -645,6 +721,13 @@ proc savestuff {w} {
set wid [expr {([winfo width $cflist] - 11) \
/ [font measure [$cflist cget -font] "0"]}]
puts $f "set geometry(cflistw) $wid"
puts -nonewline $f "set permviews {"
for {set v 0} {$v < $nextviewnum} {incr v} {
if {$viewperm($v)} {
puts $f "{[list $viewname($v) $viewfiles($v) $viewargs($v)]}"
}
}
puts $f "}"
close $f
file rename -force "~/.gitk-new" "~/.gitk"
}
@ -786,6 +869,754 @@ f Scroll diff view to next file
pack $w.ok -side bottom
}
# Procedures for manipulating the file list window at the
# bottom right of the overall window.
proc treeview {w l openlevs} {
global treecontents treediropen treeheight treeparent treeindex
set ix 0
set treeindex() 0
set lev 0
set prefix {}
set prefixend -1
set prefendstack {}
set htstack {}
set ht 0
set treecontents() {}
$w conf -state normal
foreach f $l {
while {[string range $f 0 $prefixend] ne $prefix} {
if {$lev <= $openlevs} {
$w mark set e:$treeindex($prefix) "end -1c"
$w mark gravity e:$treeindex($prefix) left
}
set treeheight($prefix) $ht
incr ht [lindex $htstack end]
set htstack [lreplace $htstack end end]
set prefixend [lindex $prefendstack end]
set prefendstack [lreplace $prefendstack end end]
set prefix [string range $prefix 0 $prefixend]
incr lev -1
}
set tail [string range $f [expr {$prefixend+1}] end]
while {[set slash [string first "/" $tail]] >= 0} {
lappend htstack $ht
set ht 0
lappend prefendstack $prefixend
incr prefixend [expr {$slash + 1}]
set d [string range $tail 0 $slash]
lappend treecontents($prefix) $d
set oldprefix $prefix
append prefix $d
set treecontents($prefix) {}
set treeindex($prefix) [incr ix]
set treeparent($prefix) $oldprefix
set tail [string range $tail [expr {$slash+1}] end]
if {$lev <= $openlevs} {
set ht 1
set treediropen($prefix) [expr {$lev < $openlevs}]
set bm [expr {$lev == $openlevs? "tri-rt": "tri-dn"}]
$w mark set d:$ix "end -1c"
$w mark gravity d:$ix left
set str "\n"
for {set i 0} {$i < $lev} {incr i} {append str "\t"}
$w insert end $str
$w image create end -align center -image $bm -padx 1 \
-name a:$ix
$w insert end $d
$w mark set s:$ix "end -1c"
$w mark gravity s:$ix left
}
incr lev
}
if {$tail ne {}} {
if {$lev <= $openlevs} {
incr ht
set str "\n"
for {set i 0} {$i < $lev} {incr i} {append str "\t"}
$w insert end $str
$w insert end $tail
}
lappend treecontents($prefix) $tail
}
}
while {$htstack ne {}} {
set treeheight($prefix) $ht
incr ht [lindex $htstack end]
set htstack [lreplace $htstack end end]
}
$w conf -state disabled
}
proc linetoelt {l} {
global treeheight treecontents
set y 2
set prefix {}
while {1} {
foreach e $treecontents($prefix) {
if {$y == $l} {
return "$prefix$e"
}
set n 1
if {[string index $e end] eq "/"} {
set n $treeheight($prefix$e)
if {$y + $n > $l} {
append prefix $e
incr y
break
}
}
incr y $n
}
}
}
proc treeclosedir {w dir} {
global treediropen treeheight treeparent treeindex
set ix $treeindex($dir)
$w conf -state normal
$w delete s:$ix e:$ix
set treediropen($dir) 0
$w image configure a:$ix -image tri-rt
$w conf -state disabled
set n [expr {1 - $treeheight($dir)}]
while {$dir ne {}} {
incr treeheight($dir) $n
set dir $treeparent($dir)
}
}
proc treeopendir {w dir} {
global treediropen treeheight treeparent treecontents treeindex
set ix $treeindex($dir)
$w conf -state normal
$w image configure a:$ix -image tri-dn
$w mark set e:$ix s:$ix
$w mark gravity e:$ix right
set lev 0
set str "\n"
set n [llength $treecontents($dir)]
for {set x $dir} {$x ne {}} {set x $treeparent($x)} {
incr lev
append str "\t"
incr treeheight($x) $n
}
foreach e $treecontents($dir) {
if {[string index $e end] eq "/"} {
set de $dir$e
set iy $treeindex($de)
$w mark set d:$iy e:$ix
$w mark gravity d:$iy left
$w insert e:$ix $str
set treediropen($de) 0
$w image create e:$ix -align center -image tri-rt -padx 1 \
-name a:$iy
$w insert e:$ix $e
$w mark set s:$iy e:$ix
$w mark gravity s:$iy left
set treeheight($de) 1
} else {
$w insert e:$ix $str
$w insert e:$ix $e
}
}
$w mark gravity e:$ix left
$w conf -state disabled
set treediropen($dir) 1
set top [lindex [split [$w index @0,0] .] 0]
set ht [$w cget -height]
set l [lindex [split [$w index s:$ix] .] 0]
if {$l < $top} {
$w yview $l.0
} elseif {$l + $n + 1 > $top + $ht} {
set top [expr {$l + $n + 2 - $ht}]
if {$l < $top} {
set top $l
}
$w yview $top.0
}
}
proc treeclick {w x y} {
global treediropen cmitmode ctext cflist cflist_top
if {$cmitmode ne "tree"} return
if {![info exists cflist_top]} return
set l [lindex [split [$w index "@$x,$y"] "."] 0]
$cflist tag remove highlight $cflist_top.0 "$cflist_top.0 lineend"
$cflist tag add highlight $l.0 "$l.0 lineend"
set cflist_top $l
if {$l == 1} {
$ctext yview 1.0
return
}
set e [linetoelt $l]
if {[string index $e end] ne "/"} {
showfile $e
} elseif {$treediropen($e)} {
treeclosedir $w $e
} else {
treeopendir $w $e
}
}
proc setfilelist {id} {
global treefilelist cflist
treeview $cflist $treefilelist($id) 0
}
image create bitmap tri-rt -background black -foreground blue -data {
#define tri-rt_width 13
#define tri-rt_height 13
static unsigned char tri-rt_bits[] = {
0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x30, 0x00, 0x70, 0x00, 0xf0, 0x00,
0xf0, 0x01, 0xf0, 0x00, 0x70, 0x00, 0x30, 0x00, 0x10, 0x00, 0x00, 0x00,
0x00, 0x00};
} -maskdata {
#define tri-rt-mask_width 13
#define tri-rt-mask_height 13
static unsigned char tri-rt-mask_bits[] = {
0x08, 0x00, 0x18, 0x00, 0x38, 0x00, 0x78, 0x00, 0xf8, 0x00, 0xf8, 0x01,
0xf8, 0x03, 0xf8, 0x01, 0xf8, 0x00, 0x78, 0x00, 0x38, 0x00, 0x18, 0x00,
0x08, 0x00};
}
image create bitmap tri-dn -background black -foreground blue -data {
#define tri-dn_width 13
#define tri-dn_height 13
static unsigned char tri-dn_bits[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x07, 0xf8, 0x03,
0xf0, 0x01, 0xe0, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00};
} -maskdata {
#define tri-dn-mask_width 13
#define tri-dn-mask_height 13
static unsigned char tri-dn-mask_bits[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x1f, 0xfe, 0x0f, 0xfc, 0x07,
0xf8, 0x03, 0xf0, 0x01, 0xe0, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00};
}
proc init_flist {first} {
global cflist cflist_top selectedline difffilestart
$cflist conf -state normal
$cflist delete 0.0 end
if {$first ne {}} {
$cflist insert end $first
set cflist_top 1
$cflist tag add highlight 1.0 "1.0 lineend"
} else {
catch {unset cflist_top}
}
$cflist conf -state disabled
set difffilestart {}
}
proc add_flist {fl} {
global flistmode cflist
$cflist conf -state normal
if {$flistmode eq "flat"} {
foreach f $fl {
$cflist insert end "\n$f"
}
}
$cflist conf -state disabled
}
proc sel_flist {w x y} {
global flistmode ctext difffilestart cflist cflist_top cmitmode
if {$cmitmode eq "tree"} return
if {![info exists cflist_top]} return
set l [lindex [split [$w index "@$x,$y"] "."] 0]
$cflist tag remove highlight $cflist_top.0 "$cflist_top.0 lineend"
$cflist tag add highlight $l.0 "$l.0 lineend"
set cflist_top $l
if {$l == 1} {
$ctext yview 1.0
} else {
catch {$ctext yview [lindex $difffilestart [expr {$l - 2}]]}
}
}
# Functions for adding and removing shell-type quoting
proc shellquote {str} {
if {![string match "*\['\"\\ \t]*" $str]} {
return $str
}
if {![string match "*\['\"\\]*" $str]} {
return "\"$str\""
}
if {![string match "*'*" $str]} {
return "'$str'"
}
return "\"[string map {\" \\\" \\ \\\\} $str]\""
}
proc shellarglist {l} {
set str {}
foreach a $l {
if {$str ne {}} {
append str " "
}
append str [shellquote $a]
}
return $str
}
proc shelldequote {str} {
set ret {}
set used -1
while {1} {
incr used
if {![regexp -start $used -indices "\['\"\\\\ \t]" $str first]} {
append ret [string range $str $used end]
set used [string length $str]
break
}
set first [lindex $first 0]
set ch [string index $str $first]
if {$first > $used} {
append ret [string range $str $used [expr {$first - 1}]]
set used $first
}
if {$ch eq " " || $ch eq "\t"} break
incr used
if {$ch eq "'"} {
set first [string first "'" $str $used]
if {$first < 0} {
error "unmatched single-quote"
}
append ret [string range $str $used [expr {$first - 1}]]
set used $first
continue
}
if {$ch eq "\\"} {
if {$used >= [string length $str]} {
error "trailing backslash"
}
append ret [string index $str $used]
continue
}
# here ch == "\""
while {1} {
if {![regexp -start $used -indices "\[\"\\\\]" $str first]} {
error "unmatched double-quote"
}
set first [lindex $first 0]
set ch [string index $str $first]
if {$first > $used} {
append ret [string range $str $used [expr {$first - 1}]]
set used $first
}
if {$ch eq "\""} break
incr used
append ret [string index $str $used]
incr used
}
}
return [list $used $ret]
}
proc shellsplit {str} {
set l {}
while {1} {
set str [string trimleft $str]
if {$str eq {}} break
set dq [shelldequote $str]
set n [lindex $dq 0]
set word [lindex $dq 1]
set str [string range $str $n end]
lappend l $word
}
return $l
}
# Code to implement multiple views
proc newview {ishighlight} {
global nextviewnum newviewname newviewperm uifont newishighlight
global newviewargs revtreeargs
set newishighlight $ishighlight
set top .gitkview
if {[winfo exists $top]} {
raise $top
return
}
set newviewname($nextviewnum) "View $nextviewnum"
set newviewperm($nextviewnum) 0
set newviewargs($nextviewnum) [shellarglist $revtreeargs]
vieweditor $top $nextviewnum "Gitk view definition"
}
proc editview {} {
global curview
global viewname viewperm newviewname newviewperm
global viewargs newviewargs
set top .gitkvedit-$curview
if {[winfo exists $top]} {
raise $top
return
}
set newviewname($curview) $viewname($curview)
set newviewperm($curview) $viewperm($curview)
set newviewargs($curview) [shellarglist $viewargs($curview)]
vieweditor $top $curview "Gitk: edit view $viewname($curview)"
}
proc vieweditor {top n title} {
global newviewname newviewperm viewfiles
global uifont
toplevel $top
wm title $top $title
label $top.nl -text "Name" -font $uifont
entry $top.name -width 20 -textvariable newviewname($n)
grid $top.nl $top.name -sticky w -pady 5
checkbutton $top.perm -text "Remember this view" -variable newviewperm($n)
grid $top.perm - -pady 5 -sticky w
message $top.al -aspect 1000 -font $uifont \
-text "Commits to include (arguments to git-rev-list):"
grid $top.al - -sticky w -pady 5
entry $top.args -width 50 -textvariable newviewargs($n) \
-background white
grid $top.args - -sticky ew -padx 5
message $top.l -aspect 1000 -font $uifont \
-text "Enter files and directories to include, one per line:"
grid $top.l - -sticky w
text $top.t -width 40 -height 10 -background white
if {[info exists viewfiles($n)]} {
foreach f $viewfiles($n) {
$top.t insert end $f
$top.t insert end "\n"
}
$top.t delete {end - 1c} end
$top.t mark set insert 0.0
}
grid $top.t - -sticky ew -padx 5
frame $top.buts
button $top.buts.ok -text "OK" -command [list newviewok $top $n]
button $top.buts.can -text "Cancel" -command [list destroy $top]
grid $top.buts.ok $top.buts.can
grid columnconfigure $top.buts 0 -weight 1 -uniform a
grid columnconfigure $top.buts 1 -weight 1 -uniform a
grid $top.buts - -pady 10 -sticky ew
focus $top.t
}
proc doviewmenu {m first cmd op args} {
set nmenu [$m index end]
for {set i $first} {$i <= $nmenu} {incr i} {
if {[$m entrycget $i -command] eq $cmd} {
eval $m $op $i $args
break
}
}
}
proc allviewmenus {n op args} {
doviewmenu .bar.view 7 [list showview $n] $op $args
doviewmenu .bar.view.hl 3 [list addhighlight $n] $op $args
}
proc newviewok {top n} {
global nextviewnum newviewperm newviewname newishighlight
global viewname viewfiles viewperm selectedview curview
global viewargs newviewargs
if {[catch {
set newargs [shellsplit $newviewargs($n)]
} err]} {
error_popup "Error in commit selection arguments: $err"
wm raise $top
focus $top
return
}
set files {}
foreach f [split [$top.t get 0.0 end] "\n"] {
set ft [string trim $f]
if {$ft ne {}} {
lappend files $ft
}
}
if {![info exists viewfiles($n)]} {
# creating a new view
incr nextviewnum
set viewname($n) $newviewname($n)
set viewperm($n) $newviewperm($n)
set viewfiles($n) $files
set viewargs($n) $newargs
addviewmenu $n
if {!$newishighlight} {
after idle showview $n
} else {
after idle addhighlight $n
}
} else {
# editing an existing view
set viewperm($n) $newviewperm($n)
if {$newviewname($n) ne $viewname($n)} {
set viewname($n) $newviewname($n)
allviewmenus $n entryconf -label $viewname($n)
}
if {$files ne $viewfiles($n) || $newargs ne $viewargs($n)} {
set viewfiles($n) $files
set viewargs($n) $newargs
if {$curview == $n} {
after idle updatecommits
}
}
}
catch {destroy $top}
}
proc delview {} {
global curview viewdata viewperm
if {$curview == 0} return
allviewmenus $curview delete
set viewdata($curview) {}
set viewperm($curview) 0
showview 0
}
proc addviewmenu {n} {
global viewname
.bar.view add radiobutton -label $viewname($n) \
-command [list showview $n] -variable selectedview -value $n
.bar.view.hl add radiobutton -label $viewname($n) \
-command [list addhighlight $n] -variable selectedhlview -value $n
}
proc flatten {var} {
global $var
set ret {}
foreach i [array names $var] {
lappend ret $i [set $var\($i\)]
}
return $ret
}
proc unflatten {var l} {
global $var
catch {unset $var}
foreach {i v} $l {
set $var\($i\) $v
}
}
proc showview {n} {
global curview viewdata viewfiles
global displayorder parentlist childlist rowidlist rowoffsets
global colormap rowtextx commitrow nextcolor canvxmax
global numcommits rowrangelist commitlisted idrowranges
global selectedline currentid canv canvy0
global matchinglines treediffs
global pending_select phase
global commitidx rowlaidout rowoptim linesegends
global commfd nextupdate
global selectedview hlview selectedhlview
global vparentlist vchildlist vdisporder vcmitlisted
if {$n == $curview} return
set selid {}
if {[info exists selectedline]} {
set selid $currentid
set y [yc $selectedline]
set ymax [lindex [$canv cget -scrollregion] 3]
set span [$canv yview]
set ytop [expr {[lindex $span 0] * $ymax}]
set ybot [expr {[lindex $span 1] * $ymax}]
if {$ytop < $y && $y < $ybot} {
set yscreen [expr {$y - $ytop}]
} else {
set yscreen [expr {($ybot - $ytop) / 2}]
}
}
unselectline
normalline
stopfindproc
if {$curview >= 0} {
set vparentlist($curview) $parentlist
set vchildlist($curview) $childlist
set vdisporder($curview) $displayorder
set vcmitlisted($curview) $commitlisted
if {$phase ne {}} {
set viewdata($curview) \
[list $phase $rowidlist $rowoffsets $rowrangelist \
[flatten idrowranges] [flatten idinlist] \
$rowlaidout $rowoptim $numcommits $linesegends]
} elseif {![info exists viewdata($curview)]
|| [lindex $viewdata($curview) 0] ne {}} {
set viewdata($curview) \
[list {} $rowidlist $rowoffsets $rowrangelist]
}
}
catch {unset matchinglines}
catch {unset treediffs}
clear_display
set curview $n
set selectedview $n
set selectedhlview -1
.bar.view entryconf 2 -state [expr {$n == 0? "disabled": "normal"}]
.bar.view entryconf 3 -state [expr {$n == 0? "disabled": "normal"}]
catch {unset hlview}
.bar.view.hl entryconf 1 -state disabled
if {![info exists viewdata($n)]} {
set pending_select $selid
getcommits
return
}
set v $viewdata($n)
set phase [lindex $v 0]
set displayorder $vdisporder($n)
set parentlist $vparentlist($n)
set childlist $vchildlist($n)
set commitlisted $vcmitlisted($n)
set rowidlist [lindex $v 1]
set rowoffsets [lindex $v 2]
set rowrangelist [lindex $v 3]
if {$phase eq {}} {
set numcommits [llength $displayorder]
catch {unset idrowranges}
} else {
unflatten idrowranges [lindex $v 4]
unflatten idinlist [lindex $v 5]
set rowlaidout [lindex $v 6]
set rowoptim [lindex $v 7]
set numcommits [lindex $v 8]
set linesegends [lindex $v 9]
}
catch {unset colormap}
catch {unset rowtextx}
set nextcolor 0
set canvxmax [$canv cget -width]
set curview $n
set row 0
setcanvscroll
set yf 0
set row 0
if {$selid ne {} && [info exists commitrow($n,$selid)]} {
set row $commitrow($n,$selid)
# try to get the selected row in the same position on the screen
set ymax [lindex [$canv cget -scrollregion] 3]
set ytop [expr {[yc $row] - $yscreen}]
if {$ytop < 0} {
set ytop 0
}
set yf [expr {$ytop * 1.0 / $ymax}]
}
allcanvs yview moveto $yf
drawvisible
selectline $row 0
if {$phase ne {}} {
if {$phase eq "getcommits"} {
show_status "Reading commits..."
}
if {[info exists commfd($n)]} {
layoutmore
} else {
finishcommits
}
} elseif {$numcommits == 0} {
show_status "No commits selected"
}
}
proc addhighlight {n} {
global hlview curview viewdata highlighted highlightedrows
global selectedhlview
if {[info exists hlview]} {
delhighlight
}
set hlview $n
set selectedhlview $n
.bar.view.hl entryconf 1 -state normal
set highlighted($n) 0
set highlightedrows {}
if {$n != $curview && ![info exists viewdata($n)]} {
set viewdata($n) [list getcommits {{}} {{}} {} {} {} 0 0 0 {}]
set vparentlist($n) {}
set vchildlist($n) {}
set vdisporder($n) {}
set vcmitlisted($n) {}
start_rev_list $n
} else {
highlightmore
}
}
proc delhighlight {} {
global hlview highlightedrows canv linehtag mainfont
global selectedhlview selectedline
if {![info exists hlview]} return
unset hlview
set selectedhlview {}
.bar.view.hl entryconf 1 -state disabled
foreach l $highlightedrows {
$canv itemconf $linehtag($l) -font $mainfont
if {$l == $selectedline} {
$canv delete secsel
set t [eval $canv create rect [$canv bbox $linehtag($l)] \
-outline {{}} -tags secsel \
-fill [$canv cget -selectbackground]]
$canv lower $t
}
}
}
proc highlightmore {} {
global hlview highlighted commitidx highlightedrows linehtag mainfont
global displayorder vdisporder curview canv commitrow selectedline
set font [concat $mainfont bold]
set max $commitidx($hlview)
if {$hlview == $curview} {
set disp $displayorder
} else {
set disp $vdisporder($hlview)
}
for {set i $highlighted($hlview)} {$i < $max} {incr i} {
set id [lindex $disp $i]
if {[info exists commitrow($curview,$id)]} {
set row $commitrow($curview,$id)
if {[info exists linehtag($row)]} {
$canv itemconf $linehtag($row) -font $font
lappend highlightedrows $row
if {$row == $selectedline} {
$canv delete secsel
set t [eval $canv create rect \
[$canv bbox $linehtag($row)] \
-outline {{}} -tags secsel \
-fill [$canv cget -selectbackground]]
$canv lower $t
}
}
}
}
set highlighted($hlview) $max
}
# Graph layout functions
proc shortids {ids} {
set res {}
foreach id $ids {
@ -821,20 +1652,21 @@ proc ntimes {n o} {
}
proc usedinrange {id l1 l2} {
global children commitrow
global children commitrow childlist curview
if {[info exists commitrow($id)]} {
set r $commitrow($id)
if {[info exists commitrow($curview,$id)]} {
set r $commitrow($curview,$id)
if {$l1 <= $r && $r <= $l2} {
return [expr {$r - $l1 + 1}]
}
set kids [lindex $childlist $r]
} else {
set kids $children($curview,$id)
}
foreach c $children($id) {
if {[info exists commitrow($c)]} {
set r $commitrow($c)
if {$l1 <= $r && $r <= $l2} {
return [expr {$r - $l1 + 1}]
}
foreach c $kids {
set r $commitrow($curview,$c)
if {$l1 <= $r && $r <= $l2} {
return [expr {$r - $l1 + 1}]
}
}
return 0
@ -902,18 +1734,19 @@ proc makeuparrow {oid x y z} {
proc initlayout {} {
global rowidlist rowoffsets displayorder commitlisted
global rowlaidout rowoptim
global idinlist rowchk
global commitidx numcommits canvxmax canv
global idinlist rowchk rowrangelist idrowranges
global numcommits canvxmax canv
global nextcolor
global parentlist childlist children
global colormap rowtextx
global linesegends
set commitidx 0
set numcommits 0
set displayorder {}
set commitlisted {}
set parentlist {}
set childlist {}
catch {unset children}
set rowrangelist {}
set nextcolor 0
set rowidlist {{}}
set rowoffsets {{}}
@ -922,6 +1755,10 @@ proc initlayout {} {
set rowlaidout 0
set rowoptim 0
set canvxmax [$canv cget -width]
catch {unset colormap}
catch {unset rowtextx}
catch {unset idrowranges}
set linesegends {}
}
proc setcanvscroll {} {
@ -954,13 +1791,12 @@ proc visiblerows {} {
proc layoutmore {} {
global rowlaidout rowoptim commitidx numcommits optim_delay
global uparrowlen
global uparrowlen curview
set row $rowlaidout
set rowlaidout [layoutrows $row $commitidx 0]
set rowlaidout [layoutrows $row $commitidx($curview) 0]
set orow [expr {$rowlaidout - $uparrowlen - 1}]
if {$orow > $rowoptim} {
checkcrossings $rowoptim $orow
optimize_rows $rowoptim 0 $orow
set rowoptim $orow
}
@ -971,8 +1807,8 @@ proc layoutmore {} {
}
proc showstuff {canshow} {
global numcommits
global linesegends idrowranges idrangedrawn
global numcommits commitrow pending_select selectedline
global linesegends idrowranges idrangedrawn curview
if {$numcommits == 0} {
global phase
@ -985,17 +1821,16 @@ proc showstuff {canshow} {
set rows [visiblerows]
set r0 [lindex $rows 0]
set r1 [lindex $rows 1]
set selrow -1
for {set r $row} {$r < $canshow} {incr r} {
if {[info exists linesegends($r)]} {
foreach id $linesegends($r) {
set i -1
foreach {s e} $idrowranges($id) {
incr i
if {$e ne {} && $e < $numcommits && $s <= $r1 && $e >= $r0
&& ![info exists idrangedrawn($id,$i)]} {
drawlineseg $id $i
set idrangedrawn($id,$i) 1
}
foreach id [lindex $linesegends [expr {$r+1}]] {
set i -1
foreach {s e} [rowranges $id] {
incr i
if {$e ne {} && $e < $numcommits && $s <= $r1 && $e >= $r0
&& ![info exists idrangedrawn($id,$i)]} {
drawlineseg $id $i
set idrangedrawn($id,$i) 1
}
}
}
@ -1007,6 +1842,14 @@ proc showstuff {canshow} {
drawcmitrow $row
incr row
}
if {[info exists pending_select] &&
[info exists commitrow($curview,$pending_select)] &&
$commitrow($curview,$pending_select) < $numcommits} {
selectline $commitrow($curview,$pending_select) 1
}
if {![info exists selectedline] && ![info exists pending_select]} {
selectline 0 1
}
}
proc layoutrows {row endrow last} {
@ -1014,8 +1857,8 @@ proc layoutrows {row endrow last} {
global uparrowlen downarrowlen maxwidth mingaplen
global childlist parentlist
global idrowranges linesegends
global commitidx
global idinlist rowchk
global commitidx curview
global idinlist rowchk rowrangelist
set idlist [lindex $rowidlist $row]
set offs [lindex $rowoffsets $row]
@ -1030,10 +1873,12 @@ proc layoutrows {row endrow last} {
lappend oldolds $p
}
}
set lse {}
set nev [expr {[llength $idlist] + [llength $newolds]
+ [llength $oldolds] - $maxwidth + 1}]
if {$nev > 0} {
if {!$last && $row + $uparrowlen + $mingaplen >= $commitidx} break
if {!$last &&
$row + $uparrowlen + $mingaplen >= $commitidx($curview)} break
for {set x [llength $idlist]} {[incr x -1] >= 0} {} {
set i [lindex $idlist $x]
if {![info exists rowchk($i)] || $row >= $rowchk($i)} {
@ -1045,7 +1890,7 @@ proc layoutrows {row endrow last} {
set offs [incrange $offs $x 1]
set idinlist($i) 0
set rm1 [expr {$row - 1}]
lappend linesegends($rm1) $i
lappend lse $i
lappend idrowranges($i) $rm1
if {[incr nev -1] <= 0} break
continue
@ -1056,6 +1901,7 @@ proc layoutrows {row endrow last} {
lset rowidlist $row $idlist
lset rowoffsets $row $offs
}
lappend linesegends $lse
set col [lsearch -exact $idlist $id]
if {$col < 0} {
set col [llength $idlist]
@ -1074,9 +1920,13 @@ proc layoutrows {row endrow last} {
} else {
unset idinlist($id)
}
set ranges {}
if {[info exists idrowranges($id)]} {
lappend idrowranges($id) $row
set ranges $idrowranges($id)
lappend ranges $row
unset idrowranges($id)
}
lappend rowrangelist $ranges
incr row
set offs [ntimes [llength $idlist] 0]
set l [llength $newolds]
@ -1117,29 +1967,28 @@ proc layoutrows {row endrow last} {
proc addextraid {id row} {
global displayorder commitrow commitinfo
global commitidx commitlisted
global parentlist childlist children
global parentlist childlist children curview
incr commitidx
incr commitidx($curview)
lappend displayorder $id
lappend commitlisted 0
lappend parentlist {}
set commitrow($id) $row
set commitrow($curview,$id) $row
readcommit $id
if {![info exists commitinfo($id)]} {
set commitinfo($id) {"No commit information available"}
}
if {[info exists children($id)]} {
lappend childlist $children($id)
} else {
lappend childlist {}
if {![info exists children($curview,$id)]} {
set children($curview,$id) {}
}
lappend childlist $children($curview,$id)
}
proc layouttail {} {
global rowidlist rowoffsets idinlist commitidx
global idrowranges
global rowidlist rowoffsets idinlist commitidx curview
global idrowranges rowrangelist
set row $commitidx
set row $commitidx($curview)
set idlist [lindex $rowidlist $row]
while {$idlist ne {}} {
set col [expr {[llength $idlist] - 1}]
@ -1147,6 +1996,8 @@ proc layouttail {} {
addextraid $id $row
unset idinlist($id)
lappend idrowranges($id) $row
lappend rowrangelist $idrowranges($id)
unset idrowranges($id)
incr row
set offs [ntimes $col 0]
set idlist [lreplace $idlist $col $col]
@ -1160,6 +2011,8 @@ proc layouttail {} {
lset rowoffsets $row 0
makeuparrow $id 0 $row 0
lappend idrowranges($id) $row
lappend rowrangelist $idrowranges($id)
unset idrowranges($id)
incr row
lappend rowidlist {}
lappend rowoffsets {}
@ -1176,7 +2029,7 @@ proc insert_pad {row col npad} {
}
proc optimize_rows {row col endrow} {
global rowidlist rowoffsets idrowranges linesegends displayorder
global rowidlist rowoffsets idrowranges displayorder
for {} {$row < $endrow} {incr row} {
set idlist [lindex $rowidlist $row]
@ -1195,8 +2048,8 @@ proc optimize_rows {row col endrow} {
set z0 [lindex $rowoffsets $y0 $x0]
if {$z0 eq {}} {
set id [lindex $idlist $col]
if {[info exists idrowranges($id)] &&
$y0 > [lindex $idrowranges($id) 0]} {
set ranges [rowranges $id]
if {$ranges ne {} && $y0 > [lindex $ranges 0]} {
set isarrow 1
}
}
@ -1254,8 +2107,8 @@ proc optimize_rows {row col endrow} {
if {$o eq {}} {
# check if this is the link to the first child
set id [lindex $idlist $col]
if {[info exists idrowranges($id)] &&
$row == [lindex $idrowranges($id) 0]} {
set ranges [rowranges $id]
if {$ranges ne {} && $row == [lindex $ranges 0]} {
# it is, work out offset to child
set y0 [expr {$row - 1}]
set id [lindex $displayorder $y0]
@ -1309,13 +2162,36 @@ proc linewidth {id} {
return $wid
}
proc rowranges {id} {
global phase idrowranges commitrow rowlaidout rowrangelist curview
set ranges {}
if {$phase eq {} ||
([info exists commitrow($curview,$id)]
&& $commitrow($curview,$id) < $rowlaidout)} {
set ranges [lindex $rowrangelist $commitrow($curview,$id)]
} elseif {[info exists idrowranges($id)]} {
set ranges $idrowranges($id)
}
return $ranges
}
proc drawlineseg {id i} {
global rowoffsets rowidlist idrowranges
global rowoffsets rowidlist
global displayorder
global canv colormap linespc
global numcommits commitrow curview
set startrow [lindex $idrowranges($id) [expr {2 * $i}]]
set row [lindex $idrowranges($id) [expr {2 * $i + 1}]]
set ranges [rowranges $id]
set downarrow 1
if {[info exists commitrow($curview,$id)]
&& $commitrow($curview,$id) < $numcommits} {
set downarrow [expr {$i < [llength $ranges] / 2 - 1}]
} else {
set downarrow 1
}
set startrow [lindex $ranges [expr {2 * $i}]]
set row [lindex $ranges [expr {2 * $i + 1}]]
if {$startrow == $row} return
assigncolor $id
set coords {}
@ -1359,8 +2235,7 @@ proc drawlineseg {id i} {
}
}
if {[llength $coords] < 4} return
set last [expr {[llength $idrowranges($id)] / 2 - 1}]
if {$i < $last} {
if {$downarrow} {
# This line has an arrow at the lower end: check if the arrow is
# on a diagonal segment, and if so, work around the Tk 8.4
# refusal to draw arrows on diagonal lines.
@ -1380,7 +2255,7 @@ proc drawlineseg {id i} {
}
}
}
set arrow [expr {2 * ($i > 0) + ($i < $last)}]
set arrow [expr {2 * ($i > 0) + $downarrow}]
set arrow [lindex {none first last both} $arrow]
set t [$canv create line $coords -width [linewidth $id] \
-fill $colormap($id) -tags lines.$id -arrow $arrow]
@ -1389,7 +2264,7 @@ proc drawlineseg {id i} {
}
proc drawparentlinks {id row col olds} {
global rowidlist canv colormap idrowranges
global rowidlist canv colormap
set row2 [expr {$row + 1}]
set x [xc $row $col]
@ -1408,9 +2283,9 @@ proc drawparentlinks {id row col olds} {
if {$x2 > $rmx} {
set rmx $x2
}
if {[info exists idrowranges($p)] &&
$row2 == [lindex $idrowranges($p) 0] &&
$row2 < [lindex $idrowranges($p) 1]} {
set ranges [rowranges $p]
if {$ranges ne {} && $row2 == [lindex $ranges 0]
&& $row2 < [lindex $ranges 1]} {
# drawlineseg will do this one for us
continue
}
@ -1433,19 +2308,19 @@ proc drawparentlinks {id row col olds} {
proc drawlines {id} {
global colormap canv
global idrowranges idrangedrawn
global childlist iddrawn commitrow rowidlist
global idrangedrawn
global children iddrawn commitrow rowidlist curview
$canv delete lines.$id
set nr [expr {[llength $idrowranges($id)] / 2}]
set nr [expr {[llength [rowranges $id]] / 2}]
for {set i 0} {$i < $nr} {incr i} {
if {[info exists idrangedrawn($id,$i)]} {
drawlineseg $id $i
}
}
foreach child [lindex $childlist $commitrow($id)] {
foreach child $children($curview,$id) {
if {[info exists iddrawn($child)]} {
set row $commitrow($child)
set row $commitrow($curview,$child)
set col [lsearch -exact [lindex $rowidlist $row] $child]
if {$col >= 0} {
drawparentlinks $child $row $col [list $id]
@ -1459,7 +2334,8 @@ proc drawcmittext {id row col rmx} {
global commitlisted commitinfo rowidlist
global rowtextx idpos idtags idheads idotherrefs
global linehtag linentag linedtag
global mainfont namefont canvxmax
global mainfont canvxmax
global hlview commitrow highlightedrows
set ofill [expr {[lindex $commitlisted $row]? "blue": "white"}]
set x [xc $row $col]
@ -1484,11 +2360,16 @@ proc drawcmittext {id row col rmx} {
set name [lindex $commitinfo($id) 1]
set date [lindex $commitinfo($id) 2]
set date [formatdate $date]
set font $mainfont
if {[info exists hlview] && [info exists commitrow($hlview,$id)]} {
lappend font bold
lappend highlightedrows $row
}
set linehtag($row) [$canv create text $xt $y -anchor w \
-text $headline -font $mainfont ]
-text $headline -font $font]
$canv bind $linehtag($row) <Button-3> "rowmenu %X %Y $id"
set linentag($row) [$canv2 create text 3 $y -anchor w \
-text $name -font $namefont]
-text $name -font $mainfont]
set linedtag($row) [$canv3 create text 3 $y -anchor w \
-text $date -font $mainfont]
set xr [expr {$xt + [font measure $mainfont $headline]}]
@ -1500,14 +2381,14 @@ proc drawcmittext {id row col rmx} {
proc drawcmitrow {row} {
global displayorder rowidlist
global idrowranges idrangedrawn iddrawn
global idrangedrawn iddrawn
global commitinfo parentlist numcommits
if {$row >= $numcommits} return
foreach id [lindex $rowidlist $row] {
if {![info exists idrowranges($id)]} continue
if {$id eq {}} continue
set i -1
foreach {s e} $idrowranges($id) {
foreach {s e} [rowranges $id] {
incr i
if {$row < $s} continue
if {$e eq {}} break
@ -1576,62 +2457,90 @@ proc clear_display {} {
catch {unset idrangedrawn}
}
proc findcrossings {id} {
global rowidlist parentlist numcommits rowoffsets displayorder
set cross {}
set ccross {}
foreach {s e} [rowranges $id] {
if {$e >= $numcommits} {
set e [expr {$numcommits - 1}]
}
if {$e <= $s} continue
set x [lsearch -exact [lindex $rowidlist $e] $id]
if {$x < 0} {
puts "findcrossings: oops, no [shortids $id] in row $e"
continue
}
for {set row $e} {[incr row -1] >= $s} {} {
set olds [lindex $parentlist $row]
set kid [lindex $displayorder $row]
set kidx [lsearch -exact [lindex $rowidlist $row] $kid]
if {$kidx < 0} continue
set nextrow [lindex $rowidlist [expr {$row + 1}]]
foreach p $olds {
set px [lsearch -exact $nextrow $p]
if {$px < 0} continue
if {($kidx < $x && $x < $px) || ($px < $x && $x < $kidx)} {
if {[lsearch -exact $ccross $p] >= 0} continue
if {$x == $px + ($kidx < $px? -1: 1)} {
lappend ccross $p
} elseif {[lsearch -exact $cross $p] < 0} {
lappend cross $p
}
}
}
set inc [lindex $rowoffsets $row $x]
if {$inc eq {}} break
incr x $inc
}
}
return [concat $ccross {{}} $cross]
}
proc assigncolor {id} {
global colormap colors nextcolor
global commitrow parentlist children childlist
global cornercrossings crossings
global commitrow parentlist children children curview
if {[info exists colormap($id)]} return
set ncolors [llength $colors]
if {[info exists commitrow($id)]} {
set kids [lindex $childlist $commitrow($id)]
} elseif {[info exists children($id)]} {
set kids $children($id)
if {[info exists children($curview,$id)]} {
set kids $children($curview,$id)
} else {
set kids {}
}
if {[llength $kids] == 1} {
set child [lindex $kids 0]
if {[info exists colormap($child)]
&& [llength [lindex $parentlist $commitrow($child)]] == 1} {
&& [llength [lindex $parentlist $commitrow($curview,$child)]] == 1} {
set colormap($id) $colormap($child)
return
}
}
set badcolors {}
if {[info exists cornercrossings($id)]} {
foreach x $cornercrossings($id) {
if {[info exists colormap($x)]
&& [lsearch -exact $badcolors $colormap($x)] < 0} {
lappend badcolors $colormap($x)
}
set origbad {}
foreach x [findcrossings $id] {
if {$x eq {}} {
# delimiter between corner crossings and other crossings
if {[llength $badcolors] >= $ncolors - 1} break
set origbad $badcolors
}
if {[llength $badcolors] >= $ncolors} {
set badcolors {}
if {[info exists colormap($x)]
&& [lsearch -exact $badcolors $colormap($x)] < 0} {
lappend badcolors $colormap($x)
}
}
if {[llength $badcolors] >= $ncolors} {
set badcolors $origbad
}
set origbad $badcolors
if {[llength $badcolors] < $ncolors - 1} {
if {[info exists crossings($id)]} {
foreach x $crossings($id) {
if {[info exists colormap($x)]
&& [lsearch -exact $badcolors $colormap($x)] < 0} {
lappend badcolors $colormap($x)
}
}
if {[llength $badcolors] >= $ncolors} {
set badcolors $origbad
}
}
set origbad $badcolors
}
if {[llength $badcolors] < $ncolors - 1} {
foreach child $kids {
if {[info exists colormap($child)]
&& [lsearch -exact $badcolors $colormap($child)] < 0} {
lappend badcolors $colormap($child)
}
foreach p [lindex $parentlist $commitrow($child)] {
foreach p [lindex $parentlist $commitrow($curview,$child)] {
if {[info exists colormap($p)]
&& [lsearch -exact $badcolors $colormap($p)] < 0} {
lappend badcolors $colormap($p)
@ -1664,7 +2573,7 @@ proc bindline {t id} {
proc drawtags {id x xt y1} {
global idtags idheads idotherrefs
global linespc lthickness
global canv mainfont commitrow rowtextx
global canv mainfont commitrow rowtextx curview
set marks {}
set ntags 0
@ -1707,7 +2616,7 @@ proc drawtags {id x xt y1} {
$xr $yt $xr $yb $xl $yb $x [expr {$yb - $delta}] \
-width 1 -outline black -fill yellow -tags tag.$id]
$canv bind $t <1> [list showtag $tag 1]
set rowtextx($commitrow($id)) [expr {$xr + $linespc}]
set rowtextx($commitrow($curview,$id)) [expr {$xr + $linespc}]
} else {
# draw a head or other ref
if {[incr nheads -1] >= 0} {
@ -1718,6 +2627,14 @@ proc drawtags {id x xt y1} {
set xl [expr {$xl - $delta/2}]
$canv create polygon $x $yt $xr $yt $xr $yb $x $yb \
-width 1 -outline black -fill $col -tags tag.$id
if {[regexp {^(remotes/.*/|remotes/)} $tag match remoteprefix]} {
set rwid [font measure $mainfont $remoteprefix]
set xi [expr {$x + 1}]
set yti [expr {$yt + 1}]
set xri [expr {$x + $rwid}]
$canv create polygon $xi $yti $xri $yti $xri $yb $xi $yb \
-width 0 -fill "#ffddaa" -tags tag.$id
}
}
set t [$canv create text $xl $y1 -anchor w -text $tag \
-font $mainfont -tags tag.$id]
@ -1728,55 +2645,6 @@ proc drawtags {id x xt y1} {
return $xt
}
proc checkcrossings {row endrow} {
global displayorder parentlist rowidlist
for {} {$row < $endrow} {incr row} {
set id [lindex $displayorder $row]
set i [lsearch -exact [lindex $rowidlist $row] $id]
if {$i < 0} continue
set idlist [lindex $rowidlist [expr {$row+1}]]
foreach p [lindex $parentlist $row] {
set j [lsearch -exact $idlist $p]
if {$j > 0} {
if {$j < $i - 1} {
notecrossings $row $p $j $i [expr {$j+1}]
} elseif {$j > $i + 1} {
notecrossings $row $p $i $j [expr {$j-1}]
}
}
}
}
}
proc notecrossings {row id lo hi corner} {
global rowidlist crossings cornercrossings
for {set i $lo} {[incr i] < $hi} {} {
set p [lindex [lindex $rowidlist $row] $i]
if {$p == {}} continue
if {$i == $corner} {
if {![info exists cornercrossings($id)]
|| [lsearch -exact $cornercrossings($id) $p] < 0} {
lappend cornercrossings($id) $p
}
if {![info exists cornercrossings($p)]
|| [lsearch -exact $cornercrossings($p) $id] < 0} {
lappend cornercrossings($p) $id
}
} else {
if {![info exists crossings($id)]
|| [lsearch -exact $crossings($id) $p] < 0} {
lappend crossings($id) $p
}
if {![info exists crossings($p)]
|| [lsearch -exact $crossings($p) $id] < 0} {
lappend crossings($p) $id
}
}
}
}
proc xcoord {i level ln} {
global canvx0 xspc1 xspc2
@ -1789,23 +2657,25 @@ proc xcoord {i level ln} {
return $x
}
proc finishcommits {} {
global commitidx phase
global canv mainfont ctext maincursor textcursor
global findinprogress
proc show_status {msg} {
global canv mainfont
if {$commitidx > 0} {
clear_display
$canv create text 3 3 -anchor nw -text $msg -font $mainfont -tags textitems
}
proc finishcommits {} {
global commitidx phase curview
global canv mainfont ctext maincursor textcursor
global findinprogress pending_select
if {$commitidx($curview) > 0} {
drawrest
} else {
$canv delete all
$canv create text 3 3 -anchor nw -text "No commits selected" \
-font $mainfont -tags textitems
}
if {![info exists findinprogress]} {
. config -cursor $maincursor
settextcursor $textcursor
show_status "No commits selected"
}
set phase {}
catch {unset pending_select}
}
# Don't change the text pane cursor if it is currently the hand cursor,
@ -1819,17 +2689,41 @@ proc settextcursor {c} {
set curtextcursor $c
}
proc nowbusy {what} {
global isbusy
if {[array names isbusy] eq {}} {
. config -cursor watch
settextcursor watch
}
set isbusy($what) 1
}
proc notbusy {what} {
global isbusy maincursor textcursor
catch {unset isbusy($what)}
if {[array names isbusy] eq {}} {
. config -cursor $maincursor
settextcursor $textcursor
}
}
proc drawrest {} {
global numcommits
global startmsecs
global canvy0 numcommits linespc
global rowlaidout commitidx
global rowlaidout commitidx curview
global pending_select
set row $rowlaidout
layoutrows $rowlaidout $commitidx 1
layoutrows $rowlaidout $commitidx($curview) 1
layouttail
optimize_rows $row 0 $commitidx
showstuff $commitidx
optimize_rows $row 0 $commitidx($curview)
showstuff $commitidx($curview)
if {[info exists pending_select]} {
selectline 0 1
}
set drawmsecs [expr {[clock clicks -milliseconds] - $startmsecs}]
#puts "overall $drawmsecs ms for $numcommits commits"
@ -1858,7 +2752,7 @@ proc findmatches {f} {
proc dofind {} {
global findtype findloc findstring markedmatches commitinfo
global numcommits displayorder linehtag linentag linedtag
global mainfont namefont canv canv2 canv3 selectedline
global mainfont canv canv2 canv3 selectedline
global matchinglines foundstring foundstrlen matchstring
global commitdata
@ -1919,7 +2813,7 @@ proc dofind {} {
markmatches $canv $l $f $linehtag($l) $matches $mainfont
} elseif {$ty == "Author"} {
drawcmitrow $l
markmatches $canv2 $l $f $linentag($l) $matches $namefont
markmatches $canv2 $l $f $linentag($l) $matches $mainfont
} elseif {$ty == "Date"} {
drawcmitrow $l
markmatches $canv3 $l $f $linedtag($l) $matches $mainfont
@ -2017,13 +2911,8 @@ proc stopfindproc {{done 0}} {
catch {close $findprocfile}
unset findprocpid
}
if {[info exists findinprogress]} {
unset findinprogress
if {$phase != "incrdraw"} {
. config -cursor $maincursor
settextcursor $textcursor
}
}
catch {unset findinprogress}
notbusy find
}
proc findpatches {} {
@ -2063,14 +2952,13 @@ proc findpatches {} {
fconfigure $f -blocking 0
fileevent $f readable readfindproc
set finddidsel 0
. config -cursor watch
settextcursor watch
nowbusy find
set findinprogress 1
}
proc readfindproc {} {
global findprocfile finddidsel
global commitrow matchinglines findinsertpos
global commitrow matchinglines findinsertpos curview
set n [gets $findprocfile line]
if {$n < 0} {
@ -2087,11 +2975,11 @@ proc readfindproc {} {
stopfindproc
return
}
if {![info exists commitrow($id)]} {
if {![info exists commitrow($curview,$id)]} {
puts stderr "spurious id: $id"
return
}
set l $commitrow($id)
set l $commitrow($curview,$id)
insertmatch $l $id
}
@ -2165,8 +3053,7 @@ proc findfiles {} {
set finddidsel 0
set findinsertpos end
set id [lindex $displayorder $l]
. config -cursor watch
settextcursor watch
nowbusy find
set findinprogress 1
findcont
update
@ -2336,7 +3223,7 @@ proc commit_descriptor {p} {
# append some text to the ctext widget, and make any SHA1 ID
# that we know about be a clickable link.
proc appendwithlinks {text} {
global ctext commitrow linknum
global ctext commitrow linknum curview
set start [$ctext index "end - 1c"]
$ctext insert end $text
@ -2346,11 +3233,12 @@ proc appendwithlinks {text} {
set s [lindex $l 0]
set e [lindex $l 1]
set linkid [string range $text $s $e]
if {![info exists commitrow($linkid)]} continue
if {![info exists commitrow($curview,$linkid)]} continue
incr e
$ctext tag add link "$start + $s c" "$start + $e c"
$ctext tag add link$linknum "$start + $s c" "$start + $e c"
$ctext tag bind link$linknum <1> [list selectline $commitrow($linkid) 1]
$ctext tag bind link$linknum <1> \
[list selectline $commitrow($curview,$linkid) 1]
incr linknum
}
$ctext tag conf link -foreground blue -underline 1
@ -2378,10 +3266,12 @@ proc selectline {l isnew} {
global canv canv2 canv3 ctext commitinfo selectedline
global displayorder linehtag linentag linedtag
global canvy0 linespc parentlist childlist
global cflist currentid sha1entry
global currentid sha1entry
global commentend idtags linknum
global mergemax numcommits
global mergemax numcommits pending_select
global cmitmode
catch {unset pending_select}
$canv delete hover
normalline
if {$l < 0 || $l >= $numcommits} return
@ -2451,8 +3341,6 @@ proc selectline {l isnew} {
$ctext conf -state normal
$ctext delete 0.0 end
set linknum 0
$ctext mark set fmark.0 0.0
$ctext mark gravity fmark.0 left
set info $commitinfo($id)
set date [formatdate [lindex $info 2]]
$ctext insert end "Author: [lindex $info 1] $date\n"
@ -2500,9 +3388,10 @@ proc selectline {l isnew} {
$ctext conf -state disabled
set commentend [$ctext index "end - 1c"]
$cflist delete 0 end
$cflist insert end "Comments"
if {[llength $olds] <= 1} {
init_flist "Comments"
if {$cmitmode eq "tree"} {
gettree $id
} elseif {[llength $olds] <= 1} {
startdiff $id
} else {
mergediff $id $l
@ -2549,24 +3438,34 @@ proc selnextpage {dir} {
}
proc unselectline {} {
global selectedline
global selectedline currentid
catch {unset selectedline}
catch {unset currentid}
allcanvs delete secsel
}
proc addtohistory {cmd} {
global history historyindex
proc reselectline {} {
global selectedline
if {[info exists selectedline]} {
selectline $selectedline 0
}
}
proc addtohistory {cmd} {
global history historyindex curview
set elt [list $curview $cmd]
if {$historyindex > 0
&& [lindex $history [expr {$historyindex - 1}]] == $cmd} {
&& [lindex $history [expr {$historyindex - 1}]] == $elt} {
return
}
if {$historyindex < [llength $history]} {
set history [lreplace $history $historyindex end $cmd]
set history [lreplace $history $historyindex end $elt]
} else {
lappend history $cmd
lappend history $elt
}
incr historyindex
if {$historyindex > 1} {
@ -2577,13 +3476,23 @@ proc addtohistory {cmd} {
.ctop.top.bar.rightbut conf -state disabled
}
proc godo {elt} {
global curview
set view [lindex $elt 0]
set cmd [lindex $elt 1]
if {$curview != $view} {
showview $view
}
eval $cmd
}
proc goback {} {
global history historyindex
if {$historyindex > 1} {
incr historyindex -1
set cmd [lindex $history [expr {$historyindex - 1}]]
eval $cmd
godo [lindex $history [expr {$historyindex - 1}]]
.ctop.top.bar.rightbut conf -state normal
}
if {$historyindex <= 1} {
@ -2597,7 +3506,7 @@ proc goforw {} {
if {$historyindex < [llength $history]} {
set cmd [lindex $history $historyindex]
incr historyindex
eval $cmd
godo $cmd
.ctop.top.bar.leftbut conf -state normal
}
if {$historyindex >= [llength $history]} {
@ -2605,14 +3514,101 @@ proc goforw {} {
}
}
proc gettree {id} {
global treefilelist treeidlist diffids diffmergeid treepending
set diffids $id
catch {unset diffmergeid}
if {![info exists treefilelist($id)]} {
if {![info exists treepending]} {
if {[catch {set gtf [open [concat | git-ls-tree -r $id] r]}]} {
return
}
set treepending $id
set treefilelist($id) {}
set treeidlist($id) {}
fconfigure $gtf -blocking 0
fileevent $gtf readable [list gettreeline $gtf $id]
}
} else {
setfilelist $id
}
}
proc gettreeline {gtf id} {
global treefilelist treeidlist treepending cmitmode diffids
while {[gets $gtf line] >= 0} {
if {[lindex $line 1] ne "blob"} continue
set sha1 [lindex $line 2]
set fname [lindex $line 3]
lappend treefilelist($id) $fname
lappend treeidlist($id) $sha1
}
if {![eof $gtf]} return
close $gtf
unset treepending
if {$cmitmode ne "tree"} {
if {![info exists diffmergeid]} {
gettreediffs $diffids
}
} elseif {$id ne $diffids} {
gettree $diffids
} else {
setfilelist $id
}
}
proc showfile {f} {
global treefilelist treeidlist diffids
global ctext commentend
set i [lsearch -exact $treefilelist($diffids) $f]
if {$i < 0} {
puts "oops, $f not in list for id $diffids"
return
}
set blob [lindex $treeidlist($diffids) $i]
if {[catch {set bf [open [concat | git-cat-file blob $blob] r]} err]} {
puts "oops, error reading blob $blob: $err"
return
}
fconfigure $bf -blocking 0
fileevent $bf readable [list getblobline $bf $diffids]
$ctext config -state normal
$ctext delete $commentend end
$ctext insert end "\n"
$ctext insert end "$f\n" filesep
$ctext config -state disabled
$ctext yview $commentend
}
proc getblobline {bf id} {
global diffids cmitmode ctext
if {$id ne $diffids || $cmitmode ne "tree"} {
catch {close $bf}
return
}
$ctext config -state normal
while {[gets $bf line] >= 0} {
$ctext insert end "$line\n"
}
if {[eof $bf]} {
# delete last newline
$ctext delete "end - 2c" "end - 1c"
close $bf
}
$ctext config -state disabled
}
proc mergediff {id l} {
global diffmergeid diffopts mdifffd
global difffilestart diffids
global diffids
global parentlist
set diffmergeid $id
set diffids $id
catch {unset difffilestart}
# this doesn't seem to actually affect anything...
set env(GIT_DIFF_OPTS) $diffopts
set cmd [concat | git-diff-tree --no-commit-id --cc $id]
@ -2647,11 +3643,8 @@ proc getmergediffline {mdf id np} {
# start of a new file
$ctext insert end "\n"
set here [$ctext index "end - 1c"]
set i [$cflist index end]
$ctext mark set fmark.$i $here
$ctext mark gravity fmark.$i left
set difffilestart([expr {$i-1}]) $here
$cflist insert end $fname
lappend difffilestart $here
add_flist [list $fname]
set l [expr {(78 - [string length $fname]) / 2}]
set pad [string range "----------------------------------------" 1 $l]
$ctext insert end "$pad $fname $pad\n" filesep
@ -2721,9 +3714,7 @@ proc startdiff {ids} {
proc addtocflist {ids} {
global treediffs cflist
foreach f $treediffs($ids) {
$cflist insert end $f
}
add_flist $treediffs($ids)
getblobdiffs $ids
}
@ -2740,6 +3731,7 @@ proc gettreediffs {ids} {
proc gettreediffline {gdtf ids} {
global treediff treediffs treepending diffids diffmergeid
global cmitmode
set n [gets $gdtf line]
if {$n < 0} {
@ -2747,7 +3739,9 @@ proc gettreediffline {gdtf ids} {
close $gdtf
set treediffs($ids) $treediff
unset treepending
if {$ids != $diffids} {
if {$cmitmode eq "tree"} {
gettree $diffids
} elseif {$ids != $diffids} {
if {![info exists diffmergeid]} {
gettreediffs $diffids
}
@ -2762,7 +3756,7 @@ proc gettreediffline {gdtf ids} {
proc getblobdiffs {ids} {
global diffopts blobdifffd diffids env curdifftag curtagstart
global difffilestart nextupdate diffinhdr treediffs
global nextupdate diffinhdr treediffs
set env(GIT_DIFF_OPTS) $diffopts
set cmd [concat | git-diff-tree --no-commit-id -r -p -C $ids]
@ -2775,11 +3769,23 @@ proc getblobdiffs {ids} {
set blobdifffd($ids) $bdf
set curdifftag Comments
set curtagstart 0.0
catch {unset difffilestart}
fileevent $bdf readable [list getblobdiffline $bdf $diffids]
set nextupdate [expr {[clock clicks -milliseconds] + 100}]
}
proc setinlist {var i val} {
global $var
while {[llength [set $var]] < $i} {
lappend $var {}
}
if {[llength [set $var]] == $i} {
lappend $var $val
} else {
lset $var $i $val
}
}
proc getblobdiffline {bdf ids} {
global diffids blobdifffd ctext curdifftag curtagstart
global diffnexthead diffnextnote difffilestart
@ -2803,23 +3809,17 @@ proc getblobdiffline {bdf ids} {
# start of a new file
$ctext insert end "\n"
$ctext tag add $curdifftag $curtagstart end
set curtagstart [$ctext index "end - 1c"]
set header $newname
set here [$ctext index "end - 1c"]
set i [lsearch -exact $treediffs($diffids) $fname]
set curtagstart $here
set header $newname
set i [lsearch -exact $treediffs($ids) $fname]
if {$i >= 0} {
set difffilestart($i) $here
incr i
$ctext mark set fmark.$i $here
$ctext mark gravity fmark.$i left
setinlist difffilestart $i $here
}
if {$newname != $fname} {
set i [lsearch -exact $treediffs($diffids) $newname]
if {$newname ne $fname} {
set i [lsearch -exact $treediffs($ids) $newname]
if {$i >= 0} {
set difffilestart($i) $here
incr i
$ctext mark set fmark.$i $here
$ctext mark gravity fmark.$i left
setinlist difffilestart $i $here
}
}
set curdifftag "f:$fname"
@ -2869,26 +3869,11 @@ proc getblobdiffline {bdf ids} {
proc nextfile {} {
global difffilestart ctext
set here [$ctext index @0,0]
for {set i 0} {[info exists difffilestart($i)]} {incr i} {
if {[$ctext compare $difffilestart($i) > $here]} {
if {![info exists pos]
|| [$ctext compare $difffilestart($i) < $pos]} {
set pos $difffilestart($i)
}
foreach loc $difffilestart {
if {[$ctext compare $loc > $here]} {
$ctext yview $loc
}
}
if {[info exists pos]} {
$ctext yview $pos
}
}
proc listboxsel {} {
global ctext cflist currentid
if {![info exists currentid]} return
set sel [lsort [$cflist curselection]]
if {$sel eq {}} return
set first [lindex $sel 0]
catch {$ctext yview fmark.$first}
}
proc setcoords {} {
@ -2921,11 +3906,10 @@ proc redisplay {} {
}
proc incrfont {inc} {
global mainfont namefont textfont ctext canv phase
global mainfont textfont ctext canv phase
global stopped entries
unmarkmatches
set mainfont [lreplace $mainfont 1 1 [expr {[lindex $mainfont 1] + $inc}]]
set namefont [lreplace $namefont 1 1 [expr {[lindex $namefont 1] + $inc}]]
set textfont [lreplace $textfont 1 1 [expr {[lindex $textfont 1] + $inc}]]
setcoords
$ctext conf -font $textfont
@ -2933,7 +3917,7 @@ proc incrfont {inc} {
foreach e $entries {
$e conf -font $mainfont
}
if {$phase == "getcommits"} {
if {$phase eq "getcommits"} {
$canv itemconf textitems -font $mainfont
}
redisplay
@ -2964,7 +3948,7 @@ proc sha1change {n1 n2 op} {
proc gotocommit {} {
global sha1string currentid commitrow tagids headids
global displayorder numcommits
global displayorder numcommits curview
if {$sha1string == {}
|| ([info exists currentid] && $sha1string == $currentid)} return
@ -2990,8 +3974,8 @@ proc gotocommit {} {
}
}
}
if {[info exists commitrow($id)]} {
selectline $commitrow($id) 1
if {[info exists commitrow($curview,$id)]} {
selectline $commitrow($curview,$id) 1
return
}
if {[regexp {^[0-9a-fA-F]{4,}$} $sha1string]} {
@ -3066,12 +4050,13 @@ proc linehover {} {
}
proc clickisonarrow {id y} {
global lthickness idrowranges
global lthickness
set ranges [rowranges $id]
set thresh [expr {2 * $lthickness + 6}]
set n [expr {[llength $idrowranges($id)] - 1}]
set n [expr {[llength $ranges] - 1}]
for {set i 1} {$i < $n} {incr i} {
set row [lindex $idrowranges($id) $i]
set row [lindex $ranges $i]
if {abs([yc $row] - $y) < $thresh} {
return $i
}
@ -3080,11 +4065,11 @@ proc clickisonarrow {id y} {
}
proc arrowjump {id n y} {
global idrowranges canv
global canv
# 1 <-> 2, 3 <-> 4, etc...
set n [expr {(($n - 1) ^ 1) + 1}]
set row [lindex $idrowranges($id) $n]
set row [lindex [rowranges $id] $n]
set yt [yc $row]
set ymax [lindex [$canv cget -scrollregion] 3]
if {$ymax eq {} || $ymax <= 0} return
@ -3098,7 +4083,7 @@ proc arrowjump {id n y} {
}
proc lineclick {x y id isnew} {
global ctext commitinfo childlist commitrow cflist canv thickerline
global ctext commitinfo children canv thickerline curview
if {![info exists commitinfo($id)] && ![getcommit $id]} return
unmarkmatches
@ -3137,7 +4122,7 @@ proc lineclick {x y id isnew} {
$ctext insert end "\tAuthor:\t[lindex $info 1]\n"
set date [formatdate [lindex $info 2]]
$ctext insert end "\tDate:\t$date\n"
set kids [lindex $childlist $commitrow($id)]
set kids $children($curview,$id)
if {$kids ne {}} {
$ctext insert end "\nChildren:"
set i 0
@ -3155,8 +4140,7 @@ proc lineclick {x y id isnew} {
}
}
$ctext conf -state disabled
$cflist delete 0 end
init_flist {}
}
proc normalline {} {
@ -3169,9 +4153,9 @@ proc normalline {} {
}
proc selbyid {id} {
global commitrow
if {[info exists commitrow($id)]} {
selectline $commitrow($id) 1
global commitrow curview
if {[info exists commitrow($curview,$id)]} {
selectline $commitrow($curview,$id) 1
}
}
@ -3184,9 +4168,10 @@ proc mstime {} {
}
proc rowmenu {x y id} {
global rowctxmenu commitrow selectedline rowmenuid
global rowctxmenu commitrow selectedline rowmenuid curview
if {![info exists selectedline] || $commitrow($id) eq $selectedline} {
if {![info exists selectedline]
|| $commitrow($curview,$id) eq $selectedline} {
set state disabled
} else {
set state normal
@ -3214,15 +4199,12 @@ proc diffvssel {dirn} {
}
proc doseldiff {oldid newid} {
global ctext cflist
global ctext
global commitinfo
$ctext conf -state normal
$ctext delete 0.0 end
$ctext mark set fmark.0 0.0
$ctext mark gravity fmark.0 left
$cflist delete 0 end
$cflist insert end "Top"
init_flist "Top"
$ctext insert end "From "
$ctext tag conf link -foreground blue -underline 1
$ctext tag bind link <Enter> { %W configure -cursor hand2 }
@ -3389,14 +4371,15 @@ proc domktag {} {
}
proc redrawtags {id} {
global canv linehtag commitrow idpos selectedline
global canv linehtag commitrow idpos selectedline curview
if {![info exists commitrow($id)]} return
drawcmitrow $commitrow($id)
if {![info exists commitrow($curview,$id)]} return
drawcmitrow $commitrow($curview,$id)
$canv delete tag.$id
set xt [eval drawtags $id $idpos($id)]
$canv coords $linehtag($commitrow($id)) $xt [lindex $idpos($id) 2]
if {[info exists selectedline] && $selectedline == $commitrow($id)} {
$canv coords $linehtag($commitrow($curview,$id)) $xt [lindex $idpos($id) 2]
if {[info exists selectedline]
&& $selectedline == $commitrow($curview,$id)} {
selectline $selectedline 0
}
}
@ -3508,7 +4491,7 @@ proc rereadrefs {} {
}
proc showtag {tag isnew} {
global ctext cflist tagcontents tagids linknum
global ctext tagcontents tagids linknum
if {$isnew} {
addtohistory [list showtag $tag 0]
@ -3523,7 +4506,7 @@ proc showtag {tag isnew} {
}
appendwithlinks $text
$ctext conf -state disabled
$cflist delete 0 end
init_flist {}
}
proc doquit {} {
@ -3905,13 +4888,13 @@ set fastdate 0
set uparrowlen 7
set downarrowlen 7
set mingaplen 30
set flistmode "flat"
set cmitmode "patch"
set colors {green red blue magenta darkgrey brown orange}
catch {source ~/.gitk}
set namefont $mainfont
font create optionfont -family sans-serif -size -12
set revtreeargs {}
@ -3928,19 +4911,77 @@ foreach arg $argv {
# check that we can find a .git directory somewhere...
set gitdir [gitdir]
if {![file isdirectory $gitdir]} {
error_popup "Cannot find the git directory \"$gitdir\"."
show_error . "Cannot find the git directory \"$gitdir\"."
exit 1
}
set cmdline_files {}
set i [lsearch -exact $revtreeargs "--"]
if {$i >= 0} {
set cmdline_files [lrange $revtreeargs [expr {$i + 1}] end]
set revtreeargs [lrange $revtreeargs 0 [expr {$i - 1}]]
} elseif {$revtreeargs ne {}} {
if {[catch {
set f [eval exec git-rev-parse --no-revs --no-flags $revtreeargs]
set cmdline_files [split $f "\n"]
set n [llength $cmdline_files]
set revtreeargs [lrange $revtreeargs 0 end-$n]
} err]} {
# unfortunately we get both stdout and stderr in $err,
# so look for "fatal:".
set i [string first "fatal:" $err]
if {$i > 0} {
set err [string range [expr {$i + 6}] end]
}
show_error . "Bad arguments to gitk:\n$err"
exit 1
}
}
set history {}
set historyindex 0
set optim_delay 16
set nextviewnum 1
set curview 0
set selectedview 0
set selectedhlview {}
set viewfiles(0) {}
set viewperm(0) 0
set viewargs(0) {}
set cmdlineok 0
set stopped 0
set stuffsaved 0
set patchnum 0
setcoords
makewindow $revtreeargs
makewindow
readrefs
getcommits $revtreeargs
if {$cmdline_files ne {} || $revtreeargs ne {}} {
# create a view for the files/dirs specified on the command line
set curview 1
set selectedview 1
set nextviewnum 2
set viewname(1) "Command line"
set viewfiles(1) $cmdline_files
set viewargs(1) $revtreeargs
set viewperm(1) 0
addviewmenu 1
.bar.view entryconf 2 -state normal
.bar.view entryconf 3 -state normal
}
if {[info exists permviews]} {
foreach v $permviews {
set n $nextviewnum
incr nextviewnum
set viewname($n) [lindex $v 0]
set viewfiles($n) [lindex $v 1]
set viewargs($n) [lindex $v 2]
set viewperm($n) 1
addviewmenu $n
}
}
getcommits

16
log-tree.c
View File

@ -3,6 +3,15 @@
#include "commit.h"
#include "log-tree.h"
static void show_parents(struct commit *commit, int abbrev)
{
struct commit_list *p;
for (p = commit->parents; p ; p = p->next) {
struct commit *parent = p->item;
printf(" %s", diff_unique_abbrev(parent->object.sha1, abbrev));
}
}
void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
{
static char this_header[16384];
@ -15,7 +24,10 @@ void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
opt->loginfo = NULL;
if (!opt->verbose_header) {
puts(sha1_to_hex(commit->object.sha1));
fputs(diff_unique_abbrev(commit->object.sha1, abbrev_commit), stdout);
if (opt->parents)
show_parents(commit, abbrev_commit);
putchar('\n');
return;
}
@ -57,6 +69,8 @@ void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
printf("%s%s",
opt->commit_format == CMIT_FMT_ONELINE ? "" : "commit ",
diff_unique_abbrev(commit->object.sha1, abbrev_commit));
if (opt->parents)
show_parents(commit, abbrev_commit);
if (parent)
printf(" (from %s)",
diff_unique_abbrev(parent->object.sha1,

6
merge-tree.c
View File

@ -24,16 +24,14 @@ static const char *sha1_to_hex_zero(const unsigned char *sha1)
static void resolve(const char *base, struct name_entry *branch1, struct name_entry *result)
{
char branch1_sha1[50];
/* If it's already branch1, don't bother showing it */
if (!branch1)
return;
memcpy(branch1_sha1, sha1_to_hex_zero(branch1->sha1), 41);
printf("0 %06o->%06o %s->%s %s%s\n",
branch1->mode, result->mode,
branch1_sha1, sha1_to_hex_zero(result->sha1),
sha1_to_hex_zero(branch1->sha1),
sha1_to_hex_zero(result->sha1),
base, result->path);
}

6
pack-check.c
View File

@ -29,12 +29,12 @@ static int verify_packfile(struct packed_git *p)
pack_base = p->pack_base;
SHA1_Update(&ctx, pack_base, pack_size - 20);
SHA1_Final(sha1, &ctx);
if (memcmp(sha1, index_base + index_size - 40, 20))
return error("Packfile %s SHA1 mismatch with idx",
p->pack_name);
if (memcmp(sha1, pack_base + pack_size - 20, 20))
return error("Packfile %s SHA1 mismatch with itself",
p->pack_name);
if (memcmp(sha1, index_base + index_size - 40, 20))
return error("Packfile %s SHA1 mismatch with idx",
p->pack_name);
/* Make sure everything reachable from idx is valid. Since we
* have verified that nr_objects matches between idx and pack,

17
pack-objects.c
View File

@ -1032,12 +1032,6 @@ static int try_delta(struct unpacked *cur, struct unpacked *old, unsigned max_de
max_depth -= cur_entry->delta_limit;
}
size = cur_entry->size;
oldsize = old_entry->size;
sizediff = oldsize > size ? oldsize - size : size - oldsize;
if (size < 50)
return -1;
if (old_entry->depth >= max_depth)
return 0;
@ -1048,9 +1042,12 @@ static int try_delta(struct unpacked *cur, struct unpacked *old, unsigned max_de
* more space-efficient (deletes don't have to say _what_ they
* delete).
*/
size = cur_entry->size;
max_size = size / 2 - 20;
if (cur_entry->delta)
max_size = cur_entry->delta_size-1;
oldsize = old_entry->size;
sizediff = oldsize < size ? size - oldsize : 0;
if (sizediff >= max_size)
return 0;
delta_buf = diff_delta(old->data, oldsize,
@ -1109,6 +1106,9 @@ static void find_deltas(struct object_entry **list, int window, int depth)
*/
continue;
if (entry->size < 50)
continue;
free(n->data);
n->entry = entry;
n->data = read_sha1_file(entry->sha1, type, &size);
@ -1239,6 +1239,7 @@ int main(int argc, char **argv)
setup_git_directory();
progress = isatty(2);
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
@ -1269,6 +1270,10 @@ int main(int argc, char **argv)
usage(pack_usage);
continue;
}
if (!strcmp("--progress", arg)) {
progress = 1;
continue;
}
if (!strcmp("-q", arg)) {
progress = 0;
continue;

2
patch-delta.c
View File

@ -14,7 +14,7 @@
#include "delta.h"
void *patch_delta(void *src_buf, unsigned long src_size,
void *delta_buf, unsigned long delta_size,
const void *delta_buf, unsigned long delta_size,
unsigned long *dst_size)
{
const unsigned char *data, *top;

4
refs.c
View File

@ -76,8 +76,8 @@ int create_symref(const char *git_HEAD, const char *refs_heads_master)
char ref[1000];
int fd, len, written;
#ifdef USE_SYMLINK_HEAD
if (!only_use_symrefs) {
#ifndef NO_SYMLINK_HEAD
if (prefer_symlink_refs) {
unlink(git_HEAD);
if (!symlink(refs_heads_master, git_HEAD))
return 0;

95
repo-config.c
View File

@ -2,46 +2,63 @@
#include <regex.h>
static const char git_config_set_usage[] =
"git-repo-config [ --bool | --int ] [--get | --get-all | --replace-all | --unset | --unset-all] name [value [value_regex]]";
"git-repo-config [ --bool | --int ] [--get | --get-all | --get-regexp | --replace-all | --unset | --unset-all] name [value [value_regex]] | --list";
static char* key = NULL;
static char* value = NULL;
static regex_t* key_regexp = NULL;
static regex_t* regexp = NULL;
static int show_keys = 0;
static int use_key_regexp = 0;
static int do_all = 0;
static int do_not_match = 0;
static int seen = 0;
static enum { T_RAW, T_INT, T_BOOL } type = T_RAW;
static int show_all_config(const char *key_, const char *value_)
{
if (value_)
printf("%s=%s\n", key_, value_);
else
printf("%s\n", key_);
return 0;
}
static int show_config(const char* key_, const char* value_)
{
char value[256];
const char *vptr = value;
int dup_error = 0;
if (value_ == NULL)
value_ = "";
if (!strcmp(key_, key) &&
(regexp == NULL ||
if (!use_key_regexp && strcmp(key_, key))
return 0;
if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
return 0;
if (regexp != NULL &&
(do_not_match ^
!regexec(regexp, value_, 0, NULL, 0)))) {
if (do_all) {
printf("%s\n", value_);
return 0;
}
if (seen > 0) {
fprintf(stderr, "More than one value: %s\n", value);
free(value);
}
regexec(regexp, value_, 0, NULL, 0)))
return 0;
if (type == T_INT) {
value = malloc(256);
sprintf(value, "%d", git_config_int(key_, value_));
} else if (type == T_BOOL) {
value = malloc(256);
sprintf(value, "%s", git_config_bool(key_, value_)
? "true" : "false");
} else {
value = strdup(value_);
}
seen++;
if (show_keys)
printf("%s ", key_);
if (seen && !do_all)
dup_error = 1;
if (type == T_INT)
sprintf(value, "%d", git_config_int(key_, value_));
else if (type == T_BOOL)
vptr = git_config_bool(key_, value_) ? "true" : "false";
else
vptr = value_;
seen++;
if (dup_error) {
error("More than one value for the key %s: %s",
key_, vptr);
}
else
printf("%s\n", vptr);
return 0;
}
@ -54,6 +71,14 @@ static int get_value(const char* key_, const char* regex_)
key[i] = tolower(key_[i]);
key[i] = 0;
if (use_key_regexp) {
key_regexp = (regex_t*)malloc(sizeof(regex_t));
if (regcomp(key_regexp, key, REG_EXTENDED)) {
fprintf(stderr, "Invalid key pattern: %s\n", key_);
return -1;
}
}
if (regex_) {
if (regex_[0] == '!') {
do_not_match = 1;
@ -67,11 +92,7 @@ static int get_value(const char* key_, const char* regex_)
}
}
i = git_config(show_config);
if (value) {
printf("%s\n", value);
free(value);
}
git_config(show_config);
free(key);
if (regexp) {
regfree(regexp);
@ -79,9 +100,9 @@ static int get_value(const char* key_, const char* regex_)
}
if (do_all)
return 0;
return !seen;
return seen == 1 ? 0 : 1;
return (seen == 1) ? 0 : 1;
}
int main(int argc, const char **argv)
@ -93,6 +114,8 @@ int main(int argc, const char **argv)
type = T_INT;
else if (!strcmp(argv[1], "--bool"))
type = T_BOOL;
else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l"))
return git_config(show_all_config);
else
break;
argc--;
@ -112,6 +135,11 @@ int main(int argc, const char **argv)
else if (!strcmp(argv[1], "--get-all")) {
do_all = 1;
return get_value(argv[2], NULL);
} else if (!strcmp(argv[1], "--get-regexp")) {
show_keys = 1;
use_key_regexp = 1;
do_all = 1;
return get_value(argv[2], NULL);
} else
return git_config_set(argv[1], argv[2]);
@ -125,6 +153,11 @@ int main(int argc, const char **argv)
else if (!strcmp(argv[1], "--get-all")) {
do_all = 1;
return get_value(argv[2], argv[3]);
} else if (!strcmp(argv[1], "--get-regexp")) {
show_keys = 1;
use_key_regexp = 1;
do_all = 1;
return get_value(argv[2], argv[3]);
} else if (!strcmp(argv[1], "--replace-all"))
return git_config_set_multivar(argv[2], argv[3], NULL, 1);

7
rev-parse.c
View File

@ -169,14 +169,12 @@ int main(int argc, char **argv)
git_config(git_default_config);
for (i = 1; i < argc; i++) {
struct stat st;
char *arg = argv[i];
char *dotdot;
if (as_is) {
if (show_file(arg) && as_is < 2)
if (lstat(arg, &st) < 0)
die("'%s': %s", arg, strerror(errno));
verify_filename(prefix, arg);
continue;
}
if (!strcmp(arg,"-n")) {
@ -342,8 +340,7 @@ int main(int argc, char **argv)
continue;
if (verify)
die("Needed a single revision");
if (lstat(arg, &st) < 0)
die("'%s': %s", arg, strerror(errno));
verify_filename(prefix, arg);
}
show_default();
if (verify && revs_count != 1)

65
revision.c
View File

@ -477,6 +477,36 @@ static void handle_all(struct rev_info *revs, unsigned flags)
for_each_ref(handle_one_ref);
}
static int add_parents_only(struct rev_info *revs, const char *arg, int flags)
{
unsigned char sha1[20];
struct object *it;
struct commit *commit;
struct commit_list *parents;
if (*arg == '^') {
flags ^= UNINTERESTING;
arg++;
}
if (get_sha1(arg, sha1))
return 0;
while (1) {
it = get_reference(revs, arg, sha1, 0);
if (strcmp(it->type, tag_type))
break;
memcpy(sha1, ((struct tag*)it)->tagged->sha1, 20);
}
if (strcmp(it->type, commit_type))
return 0;
commit = (struct commit *)it;
for (parents = commit->parents; parents; parents = parents->next) {
it = &parents->item->object;
it->flags |= flags;
add_pending_object(revs, it, arg);
}
return 1;
}
void init_revisions(struct rev_info *revs)
{
memset(revs, 0, sizeof(*revs));
@ -544,7 +574,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
revs->max_count = atoi(arg + 12);
continue;
}
/* accept -<digit>, like traditilnal "head" */
/* accept -<digit>, like traditional "head" */
if ((*arg == '-') && isdigit(arg[1])) {
revs->max_count = atoi(arg + 1);
continue;
@ -664,6 +694,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
}
if (!strcmp(arg, "-c")) {
revs->diff = 1;
revs->dense_combined_merges = 0;
revs->combine_merges = 1;
continue;
}
@ -740,32 +771,49 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
include = get_reference(revs, next, sha1, flags);
if (!exclude || !include)
die("Invalid revision range %s..%s", arg, next);
if (!seen_dashdash) {
*dotdot = '.';
verify_non_filename(revs->prefix, arg);
}
add_pending_object(revs, exclude, this);
add_pending_object(revs, include, next);
continue;
}
*dotdot = '.';
}
dotdot = strstr(arg, "^@");
if (dotdot && !dotdot[2]) {
*dotdot = 0;
if (add_parents_only(revs, arg, flags))
continue;
*dotdot = '^';
}
local_flags = 0;
if (*arg == '^') {
local_flags = UNINTERESTING;
arg++;
}
if (get_sha1(arg, sha1) < 0) {
struct stat st;
int j;
if (seen_dashdash || local_flags)
die("bad revision '%s'", arg);
/* If we didn't have a "--", all filenames must exist */
for (j = i; j < argc; j++) {
if (lstat(argv[j], &st) < 0)
die("'%s': %s", argv[j], strerror(errno));
}
/* If we didn't have a "--":
* (1) all filenames must exist;
* (2) all rev-args must not be interpretable
* as a valid filename.
* but the latter we have checked in the main loop.
*/
for (j = i; j < argc; j++)
verify_filename(revs->prefix, argv[j]);
revs->prune_data = get_pathspec(revs->prefix, argv + i);
break;
}
if (!seen_dashdash)
verify_non_filename(revs->prefix, arg);
object = get_reference(revs, arg, sha1, flags ^ local_flags);
add_pending_object(revs, object, arg);
}
@ -789,7 +837,8 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
}
if (revs->combine_merges) {
revs->ignore_merges = 0;
if (revs->dense_combined_merges)
if (revs->dense_combined_merges &&
(revs->diffopt.output_format != DIFF_FORMAT_DIFFSTAT))
revs->diffopt.output_format = DIFF_FORMAT_PATCH;
}
revs->diffopt.abbrev = revs->abbrev;

43
setup.c
View File

@ -62,6 +62,49 @@ const char *prefix_filename(const char *pfx, int pfx_len, const char *arg)
return path;
}
/*
* Verify a filename that we got as an argument for a pathspec
* entry. Note that a filename that begins with "-" never verifies
* as true, because even if such a filename were to exist, we want
* it to be preceded by the "--" marker (or we want the user to
* use a format like "./-filename")
*/
void verify_filename(const char *prefix, const char *arg)
{
const char *name;
struct stat st;
if (*arg == '-')
die("bad flag '%s' used after filename", arg);
name = prefix ? prefix_filename(prefix, strlen(prefix), arg) : arg;
if (!lstat(name, &st))
return;
if (errno == ENOENT)
die("ambiguous argument '%s': unknown revision or path not in the working tree.\n"
"Use '--' to separate paths from revisions", arg);
die("'%s': %s", arg, strerror(errno));
}
/*
* Opposite of the above: the command line did not have -- marker
* and we parsed the arg as a refname. It should not be interpretable
* as a filename.
*/
void verify_non_filename(const char *prefix, const char *arg)
{
const char *name;
struct stat st;
if (*arg == '-')
return; /* flag */
name = prefix ? prefix_filename(prefix, strlen(prefix), arg) : arg;
if (!lstat(name, &st))
die("ambiguous argument '%s': both revision and filename\n"
"Use '--' to separate filenames from revisions", arg);
if (errno != ENOENT)
die("'%s': %s", arg, strerror(errno));
}
const char **get_pathspec(const char *prefix, const char **pathspec)
{
const char *entry = *pathspec;

5
sha1_file.c
View File

@ -108,9 +108,10 @@ int safe_create_leading_directories(char *path)
char * sha1_to_hex(const unsigned char *sha1)
{
static char buffer[50];
static int bufno;
static char hexbuffer[4][50];
static const char hex[] = "0123456789abcdef";
char *buf = buffer;
char *buffer = hexbuffer[3 & ++bufno], *buf = buffer;
int i;
for (i = 0; i < 20; i++) {

33
show-branch.c
View File

@ -5,7 +5,7 @@
#include "refs.h"
static const char show_branch_usage[] =
"git-show-branch [--current] [--all] [--heads] [--tags] [--topo-order] [--more=count | --list | --independent | --merge-base ] [--topics] [<refs>...]";
"git-show-branch [--dense] [--current] [--all] [--heads] [--tags] [--topo-order] [--more=count | --list | --independent | --merge-base ] [--topics] [<refs>...]";
static int default_num = 0;
static int default_alloc = 0;
@ -527,6 +527,27 @@ static int git_show_branch_config(const char *var, const char *value)
return git_default_config(var, value);
}
static int omit_in_dense(struct commit *commit, struct commit **rev, int n)
{
/* If the commit is tip of the named branches, do not
* omit it.
* Otherwise, if it is a merge that is reachable from only one
* tip, it is not that interesting.
*/
int i, flag, count;
for (i = 0; i < n; i++)
if (rev[i] == commit)
return 0;
flag = commit->object.flags;
for (i = count = 0; i < n; i++) {
if (flag & (1u << (i + REV_SHIFT)))
count++;
}
if (count == 1)
return 1;
return 0;
}
int main(int ac, char **av)
{
struct commit *rev[MAX_REVS], *commit;
@ -548,6 +569,7 @@ int main(int ac, char **av)
int with_current_branch = 0;
int head_at = -1;
int topics = 0;
int dense = 1;
setup_git_directory();
git_config(git_show_branch_config);
@ -590,6 +612,8 @@ int main(int ac, char **av)
lifo = 1;
else if (!strcmp(arg, "--topics"))
topics = 1;
else if (!strcmp(arg, "--sparse"))
dense = 0;
else if (!strcmp(arg, "--date-order"))
lifo = 0;
else
@ -732,12 +756,15 @@ int main(int ac, char **av)
shown_merge_point |= is_merge_point;
if (1 < num_rev) {
int is_merge = !!(commit->parents && commit->parents->next);
int is_merge = !!(commit->parents &&
commit->parents->next);
if (topics &&
!is_merge_point &&
(this_flag & (1u << REV_SHIFT)))
continue;
if (dense && is_merge &&
omit_in_dense(commit, rev, num_rev))
continue;
for (i = 0; i < num_rev; i++) {
int mark;
if (!(this_flag & (1u << (i + REV_SHIFT))))

49
t/t0000-basic.sh
View File

@ -174,6 +174,27 @@ test_expect_success \
'git-ls-tree -r output for a known tree.' \
'diff current expected'
# But with -r -t we can have both.
test_expect_success \
'showing tree with git-ls-tree -r -t' \
'git-ls-tree -r -t $tree >current'
cat >expected <<\EOF
100644 blob f87290f8eb2cbbea7857214459a0739927eab154 path0
120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01 path0sym
040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe path2
100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 path2/file2
120000 blob d8ce161addc5173867a3c3c730924388daedbc38 path2/file2sym
040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3 path3
100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376 path3/file3
120000 blob 8599103969b43aff7e430efea79ca4636466794f path3/file3sym
040000 tree 3c5e5399f3a333eddecce7a9b9465b63f65f51e2 path3/subp3
100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f path3/subp3/file3
120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c path3/subp3/file3sym
EOF
test_expect_success \
'git-ls-tree -r output for a known tree.' \
'diff current expected'
################################################################
rm .git/index
test_expect_success \
@ -205,4 +226,32 @@ test_expect_success \
'no diff after checkout and git-update-index --refresh.' \
'git-diff-files >current && cmp -s current /dev/null'
################################################################
P=087704a96baf1c2d1c869a8b084481e121c88b5b
test_expect_success \
'git-commit-tree records the correct tree in a commit.' \
'commit0=$(echo NO | git-commit-tree $P) &&
tree=$(git show --pretty=raw $commit0 |
sed -n -e "s/^tree //p" -e "/^author /q") &&
test "z$tree" = "z$P"'
test_expect_success \
'git-commit-tree records the correct parent in a commit.' \
'commit1=$(echo NO | git-commit-tree $P -p $commit0) &&
parent=$(git show --pretty=raw $commit1 |
sed -n -e "s/^parent //p" -e "/^author /q") &&
test "z$commit0" = "z$parent"'
test_expect_success \
'git-commit-tree omits duplicated parent in a commit.' \
'commit2=$(echo NO | git-commit-tree $P -p $commit0 -p $commit0) &&
parent=$(git show --pretty=raw $commit2 |
sed -n -e "s/^parent //p" -e "/^author /q" |
sort -u) &&
test "z$commit0" = "z$parent" &&
numparent=$(git show --pretty=raw $commit2 |
sed -n -e "s/^parent //p" -e "/^author /q" |
wc -l) &&
test $numparent = 1'
test_done

2
t/t1001-read-tree-m-2way.sh
View File

@ -37,7 +37,7 @@ compare_change () {
}
check_cache_at () {
clean_if_empty=`git-diff-files "$1"`
clean_if_empty=`git-diff-files -- "$1"`
case "$clean_if_empty" in
'') echo "$1: clean" ;;
?*) echo "$1: dirty" ;;

2
t/t1002-read-tree-m-u-2way.sh
View File

@ -20,7 +20,7 @@ compare_change () {
}
check_cache_at () {
clean_if_empty=`git-diff-files "$1"`
clean_if_empty=`git-diff-files -- "$1"`
case "$clean_if_empty" in
'') echo "$1: clean" ;;
?*) echo "$1: dirty" ;;

54
t/t1300-repo-config.sh
View File

@ -247,6 +247,24 @@ EOF
test_expect_success 'hierarchical section value' 'cmp .git/config expect'
cat > expect << EOF
beta.noindent=sillyValue
nextsection.nonewline=wow2 for me
123456.a123=987
1.2.3.alpha=beta
EOF
test_expect_success 'working --list' \
'git-repo-config --list > output && cmp output expect'
cat > expect << EOF
beta.noindent sillyValue
nextsection.nonewline wow2 for me
EOF
test_expect_success '--get-regexp' \
'git-repo-config --get-regexp in > output && cmp output expect'
cat > .git/config << EOF
[novalue]
variable
@ -255,5 +273,41 @@ EOF
test_expect_success 'get variable with no value' \
'git-repo-config --get novalue.variable ^$'
git-repo-config > output 2>&1
test_expect_success 'no arguments, but no crash' \
"test $? = 129 && grep usage output"
cat > .git/config << EOF
[a.b]
c = d
EOF
git-repo-config a.x y
cat > expect << EOF
[a.b]
c = d
[a]
x = y
EOF
test_expect_success 'new section is partial match of another' 'cmp .git/config expect'
git-repo-config b.x y
git-repo-config a.b c
cat > expect << EOF
[a.b]
c = d
[a]
x = y
b = c
[b]
x = y
EOF
test_expect_success 'new variable inserts into proper section' 'cmp .git/config expect'
test_done

10
t/t4010-diff-pathspec.sh
View File

@ -28,7 +28,7 @@ cat >expected <<\EOF
EOF
test_expect_success \
'limit to path should show nothing' \
'git-diff-index --cached $tree path >current &&
'git-diff-index --cached $tree -- path >current &&
compare_diff_raw current expected'
cat >expected <<\EOF
@ -36,7 +36,7 @@ cat >expected <<\EOF
EOF
test_expect_success \
'limit to path1 should show path1/file1' \
'git-diff-index --cached $tree path1 >current &&
'git-diff-index --cached $tree -- path1 >current &&
compare_diff_raw current expected'
cat >expected <<\EOF
@ -44,7 +44,7 @@ cat >expected <<\EOF
EOF
test_expect_success \
'limit to path1/ should show path1/file1' \
'git-diff-index --cached $tree path1/ >current &&
'git-diff-index --cached $tree -- path1/ >current &&
compare_diff_raw current expected'
cat >expected <<\EOF
@ -52,14 +52,14 @@ cat >expected <<\EOF
EOF
test_expect_success \
'limit to file0 should show file0' \
'git-diff-index --cached $tree file0 >current &&
'git-diff-index --cached $tree -- file0 >current &&
compare_diff_raw current expected'
cat >expected <<\EOF
EOF
test_expect_success \
'limit to file0/ should emit nothing.' \
'git-diff-index --cached $tree file0/ >current &&
'git-diff-index --cached $tree -- file0/ >current &&
compare_diff_raw current expected'
test_done

170
update-index.c
View File

@ -6,6 +6,7 @@
#include "cache.h"
#include "strbuf.h"
#include "quote.h"
#include "tree-walk.h"
/*
* Default to not allowing changes to the list of files. The
@ -328,7 +329,7 @@ static int add_cacheinfo(unsigned int mode, const unsigned char *sha1,
return 0;
}
static int chmod_path(int flip, const char *path)
static void chmod_path(int flip, const char *path)
{
int pos;
struct cache_entry *ce;
@ -336,21 +337,24 @@ static int chmod_path(int flip, const char *path)
pos = cache_name_pos(path, strlen(path));
if (pos < 0)
return -1;
goto fail;
ce = active_cache[pos];
mode = ntohl(ce->ce_mode);
if (!S_ISREG(mode))
return -1;
goto fail;
switch (flip) {
case '+':
ce->ce_mode |= htonl(0111); break;
case '-':
ce->ce_mode &= htonl(~0111); break;
default:
return -1;
goto fail;
}
active_cache_changed = 1;
return 0;
report("chmod %cx '%s'", flip, path);
return;
fail:
die("git-update-index: cannot chmod %cx '%s'", flip, path);
}
static struct cache_file cache_file;
@ -360,23 +364,26 @@ static void update_one(const char *path, const char *prefix, int prefix_length)
const char *p = prefix_path(prefix, prefix_length, path);
if (!verify_path(p)) {
fprintf(stderr, "Ignoring path %s\n", path);
return;
goto free_return;
}
if (mark_valid_only) {
if (mark_valid(p))
die("Unable to mark file %s", path);
return;
goto free_return;
}
if (force_remove) {
if (remove_file_from_cache(p))
die("git-update-index: unable to remove %s", path);
report("remove '%s'", path);
return;
goto free_return;
}
if (add_file_to_cache(p))
die("Unable to process file %s", path);
report("add '%s'", path);
free_return:
if (p != path)
free((char*)p);
}
static void read_index_info(int line_termination)
@ -469,7 +476,129 @@ static void read_index_info(int line_termination)
}
static const char update_index_usage[] =
"git-update-index [-q] [--add] [--replace] [--remove] [--unmerged] [--refresh] [--cacheinfo] [--chmod=(+|-)x] [--info-only] [--force-remove] [--stdin] [--index-info] [--ignore-missing] [-z] [--verbose] [--] <file>...";
"git-update-index [-q] [--add] [--replace] [--remove] [--unmerged] [--refresh] [--really-refresh] [--cacheinfo] [--chmod=(+|-)x] [--assume-unchanged] [--info-only] [--force-remove] [--stdin] [--index-info] [--unresolve] [--ignore-missing] [-z] [--verbose] [--] <file>...";
static unsigned char head_sha1[20];
static unsigned char merge_head_sha1[20];
static struct cache_entry *read_one_ent(const char *which,
unsigned char *ent, const char *path,
int namelen, int stage)
{
unsigned mode;
unsigned char sha1[20];
int size;
struct cache_entry *ce;
if (get_tree_entry(ent, path, sha1, &mode)) {
error("%s: not in %s branch.", path, which);
return NULL;
}
if (mode == S_IFDIR) {
error("%s: not a blob in %s branch.", path, which);
return NULL;
}
size = cache_entry_size(namelen);
ce = xcalloc(1, size);
memcpy(ce->sha1, sha1, 20);
memcpy(ce->name, path, namelen);
ce->ce_flags = create_ce_flags(namelen, stage);
ce->ce_mode = create_ce_mode(mode);
return ce;
}
static int unresolve_one(const char *path)
{
int namelen = strlen(path);
int pos;
int ret = 0;
struct cache_entry *ce_2 = NULL, *ce_3 = NULL;
/* See if there is such entry in the index. */
pos = cache_name_pos(path, namelen);
if (pos < 0) {
/* If there isn't, either it is unmerged, or
* resolved as "removed" by mistake. We do not
* want to do anything in the former case.
*/
pos = -pos-1;
if (pos < active_nr) {
struct cache_entry *ce = active_cache[pos];
if (ce_namelen(ce) == namelen &&
!memcmp(ce->name, path, namelen)) {
fprintf(stderr,
"%s: skipping still unmerged path.\n",
path);
goto free_return;
}
}
}
/* Grab blobs from given path from HEAD and MERGE_HEAD,
* stuff HEAD version in stage #2,
* stuff MERGE_HEAD version in stage #3.
*/
ce_2 = read_one_ent("our", head_sha1, path, namelen, 2);
ce_3 = read_one_ent("their", merge_head_sha1, path, namelen, 3);
if (!ce_2 || !ce_3) {
ret = -1;
goto free_return;
}
if (!memcmp(ce_2->sha1, ce_3->sha1, 20) &&
ce_2->ce_mode == ce_3->ce_mode) {
fprintf(stderr, "%s: identical in both, skipping.\n",
path);
goto free_return;
}
remove_file_from_cache(path);
if (add_cache_entry(ce_2, ADD_CACHE_OK_TO_ADD)) {
error("%s: cannot add our version to the index.", path);
ret = -1;
goto free_return;
}
if (!add_cache_entry(ce_3, ADD_CACHE_OK_TO_ADD))
return 0;
error("%s: cannot add their version to the index.", path);
ret = -1;
free_return:
free(ce_2);
free(ce_3);
return ret;
}
static void read_head_pointers(void)
{
if (read_ref(git_path("HEAD"), head_sha1))
die("No HEAD -- no initial commit yet?\n");
if (read_ref(git_path("MERGE_HEAD"), merge_head_sha1)) {
fprintf(stderr, "Not in the middle of a merge.\n");
exit(0);
}
}
static int do_unresolve(int ac, const char **av,
const char *prefix, int prefix_length)
{
int i;
int err = 0;
/* Read HEAD and MERGE_HEAD; if MERGE_HEAD does not exist, we
* are not doing a merge, so exit with success status.
*/
read_head_pointers();
for (i = 1; i < ac; i++) {
const char *arg = av[i];
const char *p = prefix_path(prefix, prefix_length, arg);
err |= unresolve_one(p);
if (p != arg)
free((char*)p);
}
return err;
}
int main(int argc, const char **argv)
{
@ -478,6 +607,7 @@ int main(int argc, const char **argv)
int read_from_stdin = 0;
const char *prefix = setup_git_directory();
int prefix_length = prefix ? strlen(prefix) : 0;
char set_executable_bit = 0;
git_config(git_default_config);
@ -544,8 +674,7 @@ int main(int argc, const char **argv)
!strcmp(path, "--chmod=+x")) {
if (argc <= i+1)
die("git-update-index: %s <path>", path);
if (chmod_path(path[8], argv[++i]))
die("git-update-index: %s cannot chmod %s", path, argv[i]);
set_executable_bit = path[8];
continue;
}
if (!strcmp(path, "--assume-unchanged")) {
@ -581,6 +710,13 @@ int main(int argc, const char **argv)
read_index_info(line_termination);
break;
}
if (!strcmp(path, "--unresolve")) {
has_errors = do_unresolve(argc - i, argv + i,
prefix, prefix_length);
if (has_errors)
active_cache_changed = 0;
goto finish;
}
if (!strcmp(path, "--ignore-missing")) {
not_new = 1;
continue;
@ -594,12 +730,15 @@ int main(int argc, const char **argv)
die("unknown option %s", path);
}
update_one(path, prefix, prefix_length);
if (set_executable_bit)
chmod_path(set_executable_bit, path);
}
if (read_from_stdin) {
struct strbuf buf;
strbuf_init(&buf);
while (1) {
char *path_name;
const char *p;
read_line(&buf, stdin, line_termination);
if (buf.eof)
break;
@ -607,11 +746,18 @@ int main(int argc, const char **argv)
path_name = unquote_c_style(buf.buf, NULL);
else
path_name = buf.buf;
update_one(path_name, prefix, prefix_length);
p = prefix_path(prefix, prefix_length, path_name);
update_one(p, NULL, 0);
if (set_executable_bit)
chmod_path(set_executable_bit, p);
if (p != path_name)
free((char*) p);
if (path_name != buf.buf)
free(path_name);
}
}
finish:
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_index_file(&cache_file))