1
0
mirror of https://github.com/git/git.git synced 2024-09-30 13:42:06 +02:00
Commit Graph

11512 Commits

Author SHA1 Message Date
Junio C Hamano
1467b5fec3 GIT 1.5.3-rc5
Signed-off-by: Junio C Hamano <gitster@pobox.com>
v1.5.3-rc5
2007-08-15 00:01:57 -07:00
Junio C Hamano
1a9d7e9b48 attr.c: read .gitattributes from index as well.
This makes .gitattributes files to be read from the index when
they are not checked out to the work tree.  This is in line with
the way we always allowed low-level tools to operate in sparsely
checked out work tree in a reasonable way.

It swaps the order of new file creation and converting the blob
to work tree representation; otherwise when we are in the middle
of checking out .gitattributes we would notice an empty but
unwritten .gitattributes file in the work tree and will ignore
the copy in the index.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 23:19:10 -07:00
Junio C Hamano
a44131181a attr.c: refactoring
This splits out a common routine that parses a single line of
attribute file and adds it to the attr_stack.  It should not
change any behaviour, other than attrs array in the attr_stack
structure is now grown with alloc_nr() macro, instead of one by
one, which relied on xrealloc() to give enough slack to be
efficient enough.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 23:19:06 -07:00
Brian Downing
6b06d518ca Add read_cache to builtin-check-attr
We can now read .gitattributes files out of the index, but the index
must be loaded for this to work.

Signed-off-by: Brian Downing <bdowning@lavos.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 22:46:01 -07:00
René Scharfe
6d2d9e8666 diff: squelch empty diffs even more
When we compare two non-tracked files, or explicitly
specify --no-index, the suggestion to run git-status
is not helpful.

The patch adds a new diff_options bitfield member, no_index, that
is used instead of the special value of -2 of the rev_info field
max_count to indicate that the index is not to be used.  This makes
it possible to pass that flag down to diffcore_skip_stat_unmatch(),
which only has one diff_options parameter.

This could even become a cleanup if we removed all assignments of
max_count to a value of -2 (viz. replacement of a magic value with
a self-documenting field name) but I didn't dare to do that so late
in the rc game..

The no_index bit, if set, then tells diffcore_skip_stat_unmatch()
to not account for any skipped stat-mismatches, which avoids the
suggestion to run git-status.

Signed-off-by: Rene Scharfe <rene.scharfe@lsfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 22:34:58 -07:00
Luiz Fernando N. Capitulino
7647b17f1d Use xmkstemp() instead of mkstemp()
xmkstemp() performs error checking and prints a standard error message when
an error occur.

Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 22:20:26 -07:00
Luiz Fernando N. Capitulino
f21a47b27c Introduces xmkstemp()
This is a wrapper for mkstemp() that performs error checking and
calls die() when an error occur.

Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 22:20:23 -07:00
Luiz Fernando N. Capitulino
eef427a09c Avoid ambiguous error message if pack.idx header is wrong
Print the index version when an error occurs so the user
knows what type of header (and size) we thought the index
should have had.

Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 22:20:13 -07:00
Junio C Hamano
b798671fa9 merge-recursive: do not rudely die on binary merge
When you try to merge a path that involves binary file-level
merge, merge-recursive died rudely without cleaning up its own
mess.  A files added by the merge were left in the working tree,
but the index was not written out (because it just punted and
died), so it was cumbersome for the user to retry it by first
running "git reset --hard".

This changes merge-recursive to still warn but do the "binary"
merge for such a path; leave the "our" version in the working
tree, but still keep the path unmerged so that the user can sort
it out.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 22:20:01 -07:00
Arjen Laarhoven
e8b5f4be70 [PATCH] gitk: Make the date/time display configurable
The new 'datetimeformat' configuration variable in ~/.gitk can be set
to a Tcl 'clock format' format string to modify the display of dates
and times.

http://www.tcl.tk/man/tcl8.4/TclCmd/clock.htm has a list of allowed
fields.

Signed-off-by: Arjen Laarhoven <arjen@yaph.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-15 10:15:53 +10:00
Steffen Prohaska
890fae7041 [PATCH] gitk: Let user easily specify lines of context in diff view
More lines of context sometimes help to better understand a diff.
This patch introduces a text field above the box displaying the
blobdiffs. You can type in the number of lines of context that
you wish to view. The number of lines of context is saved to
~/.gitk.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-15 10:13:27 +10:00
Paul Mackerras
b1054ac985 gitk: Fix warning when removing a branch
When we had two heads on the same commit, and the user tried to remove
one of them, gitk was sometimes incorrectly saying that the commits
on that branch weren't on any other branch.  This fixes it.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-15 10:09:47 +10:00
Marco Costalba
9fa3465d6b Add --log-size to git log to print message size
With this option git-log prints log message size
just before the corresponding message.

Porcelain tools could use this to speedup parsing
of git-log output.

Note that size refers to log message only. If also
patch content is shown its size is not included.

In case it is not possible to know the size upfront
size value is set to zero.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 01:59:33 -07:00
Junio C Hamano
fb13227e08 git-diff: squelch "empty" diffs
After starting to edit a working tree file but later when your edit ends
up identical to the original (this can also happen when you ran a
wholesale regexp replace with something like "perl -i" that does not
actually modify many of the paths), "git diff" between the index and the
working tree outputs many "empty" diffs that show "diff --git" headers
and nothing else, because these paths are stat-dirty.  While it was a
way to warn the user that the earlier action of the user made the index
ineffective as an optimization mechanism, it was felt too loud for the
purpose of warning even to experienced users, and also resulted in
confusing people new to git.

This replaces the "empty" diffs with a single warning message at the
end.  Having many such paths hurts performance, and you can run
"git-update-index --refresh" to update the lstat(2) information recorded
in the index in such a case.  "git-status" does so as a side effect, and
that is more familiar to the end-user, so we recommend it to them.

The change affects only "git diff" that outputs patch text, because that
is where the annoyance of too many "empty" diff is most strongly felt,
and because the warning message can be safely ignored by downstream
tools without getting mistaken as part of the patch.  For the low-level
"git diff-files" and "git diff-index", the traditional behaviour is
retained.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14 01:55:00 -07:00
Steffen Prohaska
180787c48f Improved hint on how to set identity
The first thing we teach in the tutorial is to set the default
identity in $HOME/.gitconfig using "git config --global".  The
suggestion in the error message should match the order, while
hinting that per repository identity can later be configured
differently.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 23:34:38 -07:00
David Kastrup
30c5cd3124 Add a test for git-commit being confused by relative GIT_DIR
Signed-off-by: David Kastrup <dak@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 21:19:48 -07:00
David Kastrup
b2bc9a3098 git-sh-setup.sh: make GIT_DIR absolute
Quite a few of the scripts are rather careless about using GIT_DIR
while changing directories.

Some try their hands (with different likelihood of success) in making
GIT_DIR absolute.

This patch lets git-sh-setup.sh cater for absolute directories (in a
way that should work reliably also with non-Unix path names) and
removes the respective kludges in git-filter-branch.sh and
git-instaweb.sh.

Signed-off-by: David Kastrup <dak@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 21:19:48 -07:00
Alberto Bertogli
0476786e64 Allow git-svnimport to take "" as the trunk directory.
Some repositories started with the trunk in "/" and then moved it to the
standard "trunk/" location.

On these repositories, the correct thing would be to call git-svnimport -T "",
but because of the way the options are handled, it uses the default "trunk"
instead of the given empty string. This patch fixes that behaviour.

Reported by Leandro Lucarella <llucax@gmail.com>.

Signed-off-by: Alberto Bertogli <albertito@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 21:19:20 -07:00
Brian Gernhardt
70f64148bf Fix t5701-clone-local for white space from wc
Signed-off-by: Brian Gernhardt <benji@silverinsanity.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 16:47:38 -07:00
Reece H. Dunn
7da660f437 git-p4: Fix the sorting of changelists when cloning a Perforce repository.
When performing a git-p4 clone operation on a Perforce repository,
where the changelists change in order of magnitude (e.g. 100 to 1000),
the set of changes to import from is not sorted properly. This is
because the data in the list is strings not integers. The other place
where this is done already converts the value to an integer, so it is
not affected.

Acked-by: Simon Hausmann <simon@lst.de>
2007-08-13 15:23:14 -07:00
René Scharfe
89d07f750a diff: don't run pager if user asked for a diff style exit code
As Wincent Colaiuta found out, it's a bit unexpected for git diff to
start a pager even when the --quiet option is specified.  The problem
is that the pager hides the return code -- which is the only output
we're interested in in this case.

Push pager setup down into builtin-diff.c and don't start the pager
if --exit-code or --quiet (which implies --exit-code) was specified.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 13:06:23 -07:00
Junio C Hamano
4b37666ccb builtin-bundle create - use lock_file
"git bundle create" left an invalid, partially written bundle if
an error occured during creation.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 13:04:18 -07:00
Mark Levedahl
95eb6853af t3902 - skip test if file system doesn't support HT in names
Windows / cygwin don't support HT, LF, or TAB in file name so this test
is meaningless there.

Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 12:58:38 -07:00
Alexandre Julliard
d616813d75 git-add: Add support for --refresh option.
This allows to refresh only a subset of the project files, based on
the specified pathspecs.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 12:58:38 -07:00
Junio C Hamano
77b258f436 t3404: fix "fake-editor"
Here-text to create fake-editor did not use <<\EOF but <<EOF,
but there was no point doing so, as it quoted all the variables
anyway.  Simplify it.

Also futureproof the special mode to edit COMMIT_EDITMSG file;
it is interested in editing the COMMIT_EDITMSG file in any
GIT_DIR; GIT_DIR may be given as an absolute path.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 12:58:38 -07:00
Alexandre Julliard
8fdc39729b git.el: Always set the current directory in the git-diff buffer.
This allows jumping to the correct file with the diff-mode commands.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 12:58:38 -07:00
Alexandre Julliard
09afcd6933 git.el: Add support for interactive diffs.
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13 12:58:38 -07:00
Junio C Hamano
04d70bebe7 Merge branch 'master' of git://git.kernel.org/pub/scm/gitk/gitk
* 'master' of git://git.kernel.org/pub/scm/gitk/gitk:
  gitk: Fix bug causing Tcl error when updating graph
  gitk: Fix bug introduced in commit 67a4f1a7
  [PATCH] gitk: Show an error and exit if no .git could be found
  [PATCH] gitk: Continue and show error message in new repos
  [PATCH] gitk: Handle MouseWheel events on Windows
  [PATCH] gitk: Enable selected patch text on Windows
  gitk: Fix bug causing the "can't unset idinlist(...)" error
  gitk: Add a context menu for file list entries
2007-08-13 12:57:42 -07:00
Paul Mackerras
a69b2d1a8b gitk: Fix bug causing Tcl error when updating graph
If "Show nearby tags" is turned off, selecting "Update" from the File
menu will cause a Tcl error.  This fixes it.  The problem was that
we were calling regetallcommits unconditionally, but it assumed that
getallcommits had been called previously.  This also restructures
{re,}getallcommits to be a bit simpler.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-13 15:02:02 +10:00
Paul Mackerras
7b459a1c1c gitk: Fix bug introduced in commit 67a4f1a7
In fixing the "can't unset idinlist" error, I moved the setting of
idinlist into the loop that splits the parents into "new" parents
(i.e. those of which this is the first child) and "old" parents.
Unfortunately this is incorrect in the case where we hit the break
statement a few lines further down, since when we come back in,
we'll see idinlist($p) set for some parents that aren't in the list.

This fixes it by moving the loop that sets up newolds and oldolds
further down.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-13 14:52:00 +10:00
Alex Riesen
6c87d60cc6 [PATCH] gitk: Show an error and exit if no .git could be found
This is to help people starting gitk from graphical file managers where
the stderr output is hidden.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-12 17:30:57 +10:00
Alex Riesen
062d671f57 [PATCH] gitk: Continue and show error message in new repos
If there is no commit made yet, gitk just dumps a Tcl error on stderr,
which sometimes is hard to see.  Noticed when gitk was run from Xfce
file manager (thunar's custom action).

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-12 17:30:57 +10:00
Mark Levedahl
314c30936f [PATCH] gitk: Handle MouseWheel events on Windows
Windows, unlike X-Windows, sends mousewheel events by default to the
window that has keyboard focus and uses the MouseWheel event to do so.
The window to be scrolled must be able to take focus, but gitk's panels
are disabled so cannot take focus.  For all these reasons, a different
design is needed to use the mousewheel on Windows.  The approach here is
to bind the mousewheel events to the top level window and redirect them
based upon the current mouse position.

Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-12 17:30:56 +10:00
Mark Levedahl
bd441de4df [PATCH] gitk: Enable selected patch text on Windows
On windows, mouse input follows the keyboard focus, so to allow selecting
text from the patch canvas we must not shift focus back to the top level.
This change has no negative impact on X, so we don't explicitly test
for Win32 on this change. This provides similar selection capability
as already available using X-Windows.

Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-12 17:29:55 +10:00
Paul Mackerras
67a4f1a7f5 gitk: Fix bug causing the "can't unset idinlist(...)" error
Under some circumstances, having duplicate parents in a commit could
trigger a "can't unset idinlist" Tcl error.  This fixes the cause
(the logic in layoutrows could end up putting the same commit into
rowidlist twice) and also puts a catch around the unset to ignore
the error.

Thanks to Jeff King for coming up with a test script to generate a
repo that shows the problem.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-12 17:23:47 +10:00
David Kastrup
f9286765b2 Documentation/Makefile: remove cmd-list.made before redirecting to it.
If cmd-list.made has been created by a previous run as root, output
redirection to it will fail.  So remove it before regeneration.

Signed-off-by: David Kastrup <dak@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10 23:50:00 -07:00
Junio C Hamano
55d1932bce Merge branch 'cr/tag'
* cr/tag:
  Teach "git stripspace" the --strip-comments option
  Make verify-tag a builtin.
  builtin-tag.c: Fix two memory leaks and minor notation changes.
  launch_editor(): Heed GIT_EDITOR and core.editor settings
  Make git tag a builtin.
2007-08-10 23:17:46 -07:00
David Kastrup
98e79f63be INSTALL: explain info installation and dependencies.
Signed-off-by: David Kastrup <dak@gnu.org>
2007-08-10 23:16:38 -07:00
David Kastrup
4739809cd0 Add support for an info version of the user manual
These patches use docbook2x in order to create an info version of the
git user manual.  No existing Makefile targets (including "all") are
touched, so you need to explicitly say

make info
sudo make install-info

to get git.info created and installed.  If the info target directory
does not already contain a "dir" file, no directory entry is created.
This facilitates $(DESTDIR)-based installations.  The same could be
achieved with

sudo make INSTALL_INFO=: install-info

explicitly.

perl is used for patching up sub-par file and directory information in
the Texinfo file.  It would be cleaner to place the respective info
straight into user-manual.txt or the conversion configurations, but I
find myself unable to find out how to do this with Asciidoc/Texinfo.

Signed-off-by: David Kastrup <dak@gnu.org>
2007-08-10 23:16:18 -07:00
Junio C Hamano
fa548703d1 Merge branch 'jc/clone'
* jc/clone:
  git-clone: aggressively optimize local clone behaviour.
  connect: accept file:// URL scheme
2007-08-10 23:05:04 -07:00
Linus Torvalds
566b5c057c Optimize the three-way merge of git-read-tree
As mentioned, the three-way case *should* be as trivial as the
following. It passes all the tests, and I verified that a conflicting
merge in the 100,000 file horror-case merged correctly (with the conflict
markers) in 0.687 seconds with this, so it works, but I'm lazy and
somebody else should double-check it [jc: followed all three-way merge
codepaths and verified it removes when it should].

Without this patch, the merge took 8.355 seconds, so this patch
really does make a huge difference for merge performance with lots and
lots of files, and we're not talking percentages, we're talking
orders-of-magnitude differences!

Now "unpack_trees()" is just fast enough that we don't need to avoid it
(although it's probably still a good idea to eventually convert it to use
the traverse_trees() infrastructure some day - just to avoid having
extraneous tree traversal functions).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10 23:02:14 -07:00
Alex Riesen
cbbb218f8b Fix filehandle leak in "git branch -D"
On Windows (it can't touch open files in any way) the following fails:

    git branch -D branch1 branch2

if the both branches are in packed-refs.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10 22:50:06 -07:00
Mark Levedahl
21a02980f9 builtin-bundle - use buffered reads for bundle header
This eliminates all use of byte-at-a-time reading of data in this
function: as Junio noted, a bundle file is seekable so we can
reset the file position to the first part of the pack-file using lseek
after reading the header.

Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10 22:33:44 -07:00
Mark Levedahl
442b67a559 builtin-bundle.c - use stream buffered input for rev-list
git-bundle create on cygwin was nearly unusable due to 1 character
at a time (unbuffered) reading from an exec'ed process. Fix by using
fdopen to get a buffered stream.

Results for "time git bundle create test.bdl v1.0.3..v1.5.2" are:

before this patch:
         cygwin         linux
real    1m38.828s      0m3.578s
user    0m12.122s      0m2.896s
sys     1m28.215s      0m0.692s

after this patch:
real    0m3.688s       0m2.835s
user    0m3.075s       0m2.731s
sys     0m1.075s       0m0.149s

Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10 22:20:35 -07:00
Junio C Hamano
c06793a4ed allow git-bundle to create bottomless bundle
Mark Levedahl <mlevedahl@gmail.com> writes:

> Junio C Hamano wrote:
>> While "git bundle" was a useful way to sneakernet incremental
>> changes, we did not allow:
>>
> Thanks - I've been thinking for months I could fix this bug, never
> figured it out and didn't want to nag Dscho one more time. I confirm
> that this allows creation of bundles with arbitrary refs, not just
> those under refs/heads. Yahoo!

Actually, there is another bug nearby.

If you do:

	git bundle create v2.6-20-v2.6.22.bndl v2.6.20..v2.6.22

the bundle records that it requires v2.6.20^0 commit (correct)
and gives you tag v2.6.22 (incorrect); the bug is that the
object it lists in fact is the commit v2.6.22^0, not the tag.

This is because the revision range operation .. is always about
set of commits, but the code near where my patch touches does
not validate that the sha1 value obtained from dwim_ref()
against the commit object name e->item->sha1 before placing the
head information in the commit.

The attached patch attempts to fix this problem.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10 22:19:15 -07:00
Junio C Hamano
7fa8254f94 allow git-bundle to create bottomless bundle
While "git bundle" was a useful way to sneakernet incremental
changes, we did not allow:

	$ git bundle create v2.6.20.bndl v2.6.20

to create a bundle that contains the whole history to a
well-known good revision.  Such a bundle can be mirrored
everywhere, and people can prime their repository with it to
reduce the load on the repository that serves near the tip of
the development.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10 22:19:06 -07:00
Linus Torvalds
d699676dda Optimize the two-way merge of git-read-tree too
This trivially optimizes the two-way merge case of git-read-tree too,
which affects switching branches.

When you have tons and tons of files in your repository, but there are
only small differences in the branches (maybe just a couple of files
changed), the biggest cost of the branch switching was actually just the
index calculations.

This fixes it (timings for switching between the "testing" and "master"
branches in the 100,000 file testing-repo-from-hell, where the branches
only differ in one small file).

Before:
	[torvalds@woody bummer]$ time git checkout master
	real    0m9.919s
	user    0m8.461s
	sys     0m0.264s

After:
	[torvalds@woody bummer]$ time git checkout testing
	real    0m0.576s
	user    0m0.348s
	sys     0m0.228s

so it's easily an order of magnitude different.

This concludes the series. I think we could/should do the three-way merge
too (to speed up merges), but I'm lazy. Somebody else can do it.

The rule is very simple: you need to remove the old entry if:
 - you want to remove the file entirely
 - you replace it with a "merge conflict" entry (ie a non-stage-0 entry)

and you can avoid removing it if you either

 - keep the old one
 - or resolve it to a new one.

and these rules should all be valid for the three-way case too.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10 14:00:25 -07:00
Linus Torvalds
288f072ec0 Optimize the common cases of git-read-tree
This optimizes bind_merge() and oneway_merge() to not unnecessarily
remove and re-add the old index entries when they can just get replaced
by updated ones.

This makes these operations much faster for large trees (where "large"
is in the 50,000+ file range), because we don't unnecessarily move index
entries around in the index array all the time.

Using the "bummer" tree (a test-tree with 100,000 files) we get:

Before:
	[torvalds@woody bummer]$ time git commit -m"Change one file" 50/500
	real    0m9.470s
	user    0m8.729s
	sys     0m0.476s

After:
	[torvalds@woody bummer]$ time git commit -m"Change one file" 50/500
	real    0m1.173s
	user    0m0.720s
	sys     0m0.452s

so for large trees this is easily very noticeable indeed.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10 14:00:11 -07:00
Linus Torvalds
b48d5a050a Move old index entry removal from "unpack_trees()" into the individual functions
This makes no changes to current code, but it allows the individual merge
functions to decide what to do about the old entry.  They might decide to
update it in place, rather than force them to always delete and re-add it.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10 13:59:19 -07:00
Junio C Hamano
79f5e0645a Merge branch 'lt/readtree'
* lt/readtree:
  Start moving unpack-trees to "struct tree_desc"
2007-08-10 13:58:45 -07:00