The DWIM mode of checkout allows you to run "git checkout foo" when there
is no existing local ref or path called "foo", and there is exactly _one_
remote with a remote-tracking branch called "foo". Git will automatically
create a new local branch called "foo" using the remote-tracking "foo" as
its starting point and configured upstream.
For example, consider the following unconventional (but perfectly valid)
remote setup:
[remote "origin"]
fetch = refs/heads/*:refs/remotes/origin/*
[remote "frotz"]
fetch = refs/heads/*:refs/remotes/frotz/nitfol/*
Case 1: Assume both "origin" and "frotz" have remote-tracking branches called
"foo", at "refs/remotes/origin/foo" and "refs/remotes/frotz/nitfol/foo"
respectively. In this case "git checkout foo" should fail, because there is
more than one remote with a "foo" branch.
Case 2: Assume only "frotz" have a remote-tracking branch called "foo". In
this case "git checkout foo" should succeed, and create a local branch "foo"
from "refs/remotes/frotz/nitfol/foo", using remote branch "foo" from "frotz"
as its upstream.
The current code hardcodes the assumption that all remote-tracking branches
must match the "refs/remotes/$remote/*" pattern (which is true for remotes
with "conventional" refspecs, but not true for the "frotz" remote above).
When running "git checkout foo", the current code looks for exactly one ref
matching "refs/remotes/*/foo", hence in the above example, it fails to find
"refs/remotes/frotz/nitfol/foo", which causes it to fail both case #1 and #2.
The better way to handle the above example is to actually study the fetch
refspecs to deduce the candidate remote-tracking branches for "foo"; i.e.
assume "foo" is a remote branch being fetched, and then map "refs/heads/foo"
through the refspecs in order to get the corresponding remote-tracking
branches "refs/remotes/origin/foo" and "refs/remotes/frotz/nitfol/foo".
Finally we check which of these happens to exist in the local repo, and
if there is exactly one, we have an unambiguous match for "git checkout foo",
and may proceed.
This fixes most of the failing tests introduced in the previous patch.
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When using "git checkout foo" to DWIM the creation of local "foo" from some
existing upstream "foo", we assume conventional refspecs as created by "git
clone" or "git remote add", and fail to work correctly if the current
refspecs do not follow the conventional "refs/remotes/$remote/*" pattern.
Improved-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The DWIM mode of checkout allows you to run "git checkout foo" when there is
no existing local ref or path called "foo", and there is exactly one remote
with a remote-tracking branch called "foo". Git will then automatically
create a new local branch called "foo" using the remote-tracking "foo" as
its starting point and configured upstream.
Improved-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A regression fix for the logic to detect die() handler triggering
itself recursively.
* jk/a-thread-only-dies-once:
run-command: use thread-aware die_is_recursing routine
usage: allow pluggable die-recursion checks
A fix to a long-standing issue in the command line parser for
revisions, which was triggered by mv/sequence-pick-error-diag topic.
* tr/copy-revisions-from-stdin:
read_revisions_from_stdin: make copies for handle_revision_arg
In Git 2.0, "git add -u" and "git add -A" without any pathspec will
update the index for all paths, including those outside the current
directory, making it more consistent with "commit -a". To help the
migration pain, a warning is issued when the differences between the
current behaviour and the upcoming behaviour matters, i.e. when the
user has local changes outside the current directory.
* 'jn/add-2.0-u-A-sans-pathspec' (early part):
add -A: only show pathless 'add -A' warning when changes exist outside cwd
add -u: only show pathless 'add -u' warning when changes exist outside cwd
add: make warn_pathless_add() a no-op after first call
add: add a blank line at the end of pathless 'add [-u|-A]' warning
add: make pathless 'add [-u|-A]' warning a file-global function
Teach "--human-readable" aka "-H" option to "git count-objects" to
show various large numbers in Ki/Mi/GiB scaled as necessary.
* ap/strbuf-humanize:
count-objects: add -H option to humanize sizes
strbuf: create strbuf_humanise_bytes() to show byte sizes
Fix longstanding issues with the test harness when used with --root=<there>
option.
* jk/test-trash:
t/test-lib.sh: drop "$test" variable
t/test-lib.sh: fix TRASH_DIRECTORY handling
The resolution of some corner cases by "git merge-tree" were
inconsistent between top-of-the-tree and in a subdirectory.
* jk/merge-tree-added-identically:
merge-tree: don't print entries that match "local"
Allow smart-capable HTTP servers to be restricted via the
GIT_NAMESPACE mechanism when talking with commit-walker clients
(they already do so when talking with smart HTTP clients).
* jk/http-dumb-namespaces:
http-backend: respect GIT_NAMESPACE with dumb clients
Implementations of "tar" of BSD descend have found to have trouble
with reading an otherwise empty tar archive with pax headers and
causes an unnecessary test failure.
* rs/empty-archive:
t5004: fix issue with empty archive test and bsdtar
Allows format-patch --cover-letter to be configurable; the most
notable is the "auto" mode to create cover-letter only for multi
patch series.
* fc/send-email-annotate:
rebase-am: explicitly disable cover-letter
format-patch: trivial cleanups
format-patch: add format.coverLetter configuration variable
log: update to OPT_BOOL
format-patch: refactor branch name calculation
format-patch: improve head calculation for cover-letter
send-email: make annotate configurable
Adjust our tests for upcoming migration of the default value for the
"push.default" configuration variable to "simple" from "mixed".
* 'jc/push-2.0-default-to-simple' (early part):
t5570: do not assume the "matching" push is the default
t5551: do not assume the "matching" push is the default
t5550: do not assume the "matching" push is the default
t9401: do not assume the "matching" push is the default
t9400: do not assume the "matching" push is the default
t7406: do not assume the "matching" push is the default
t5531: do not assume the "matching" push is the default
t5519: do not assume the "matching" push is the default
t5517: do not assume the "matching" push is the default
t5516: do not assume the "matching" push is the default
t5505: do not assume the "matching" push is the default
t5404: do not assume the "matching" push is the default
Document where the configuration is read by the git-daemon when its --user
option is used.
* jk/daemon-user-doc:
doc: clarify that "git daemon --user=<user>" option does not export HOME=~user
In addition to a user visible change to offer more options to cherry-pick,
generally cleans up and simplifies the code.
* fc/completion:
completion: small optimization
completion: inline __gitcomp_1 to its sole callsite
completion: get rid of compgen
completion: add __gitcomp_nl tests
completion: add new __gitcompadd helper
completion: get rid of empty COMPREPLY assignments
completion: trivial test improvement
completion: add more cherry-pick options
Update the informational message when "git checkout" leaves the
detached head state.
* kb/co-orphan-suggestion-short-sha1:
checkout: abbreviate hash in suggest_reattach
Attempts to reduce the stack footprint of sha1_object_info()
and unpack_entry() codepaths.
* tr/packed-object-info-wo-recursion:
sha1_file: remove recursion in unpack_entry
Refactor parts of in_delta_base_cache/cache_or_unpack_entry
sha1_file: remove recursion in packed_object_info
MSYS bash interprets the slash in the argument core.commentchar="/"
as root directory and mangles it into a Windows style path. Use a
different core.commentchar to dodge the issue.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git fast-import expects an extra newline after the commit message data,
but we are adding it only on hg-git compat mode, which is why the
bidirectionality tests pass.
We should add it unconditionally.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we die from an async thread, we do not actually exit the
program, but just kill the thread. This confuses the static
counter in usage.c's default die_is_recursing function; it
updates the counter once for the thread death, and then when
the main program calls die() itself, it erroneously thinks
we are recursing. The end result is that we print "recursion
detected in die handler" instead of the real error in such a
case (the easiest way to trigger this is having a remote
connection hang up while running a sideband demultiplexer).
This patch solves it by using a per-thread counter when the
async_die function is installed; we detect recursion in each
thread (including the main one), but they do not step on
each other's toes.
Other threaded code does not need to worry about this, as
they do not install specialized die handlers; they just let
a die() from a sub-thread take down the whole program.
Since we are overriding the default recursion-check
function, there is an interesting corner case that is not a
problem, but bears some explanation. Imagine the main thread
calls die(), and then in the die_routine starts an async
call. We will switch to using thread-local storage, which
starts at 0, for the main thread's counter, even though
the original counter was actually at 1. That's OK, though,
for two reasons:
1. It would miss only the first level of recursion, and
would still find recursive failures inside the async
helper.
2. We do not currently and are not likely to start doing
anything as heavyweight as starting an async routine
from within a die routine or helper function.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When any git code calls die or die_errno, we use a counter
to detect recursion into the die functions from any of the
helper functions. However, such a simple counter is not good
enough for threaded programs, which may call die from a
sub-thread, killing only the sub-thread (but incrementing
the counter for everyone).
Rather than try to deal with threads ourselves here, let's
just allow callers to plug in their own recursion-detection
function. This is similar to how we handle the die routine
(the caller plugs in a die routine which may kill only the
sub-thread).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
External projects have been known to parse the output of
"git version". Help prevent future authors from changing
its format by adding a comment to its implementation.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If you try this:
1. Install Git for Windows (from the msysgit project)
2. Put
[core]
autocrlf = false
eol = native
in your .gitconfig.
3. Clone a project with
*.txt text
in its .gitattributes.
Then with current git, any text files checked out have LF line
endings, instead of the expected CRLF.
Cc: Johannes Schindelin <johannes.schindelin@gmx.de>
Cc: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
read_revisions_from_stdin() has passed pointers to its read buffer
down to handle_revision_arg() since its inception way back in 42cabc3
(Teach rev-list an option to read revs from the standard input.,
2006-09-05). Even back then, this was a bug: through
add_pending_object, the argument was recorded in the object_array's
'name' field.
Fix it by making a copy whenever read_revisions_from_stdin() passes an
argument down the callchain. The other caller runs handle_revision_arg()
on argv[], where it would be redundant to make a copy.
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Because we reuse curl handles for multiple requests, the
setup of a handle happens in two stages: stable, global
setup and per-request setup. The lifecycle of a handle is
something like:
1. get_curl_handle; do basic global setup that will last
through the whole program (e.g., setting the user
agent, ssl options, etc)
2. get_active_slot; set up a per-request baseline (e.g.,
clearing the read/write functions, making it a GET
request, etc)
3. perform the request with curl_*_perform functions
4. goto step 2 to perform another request
Breaking it down this way means we can avoid doing global
setup from step (1) repeatedly, but we still finish step (2)
with a predictable baseline setup that callers can rely on.
Until commit 6d052d7 (http: add HTTP_KEEP_ERROR option,
2013-04-05), setting curl's FAILONERROR option was a global
setup; we never changed it. However, 6d052d7 introduced an
option where some requests might turn off FAILONERROR. Later
requests using the same handle would have the option
unexpectedly turned off, which meant they would not notice
http failures at all.
This could easily be seen in the test-suite for the
"half-auth" cases of t5541 and t5551. The initial requests
turned off FAILONERROR, which meant it was erroneously off
for the rpc POST. That worked fine for a successful request,
but meant that we failed to react properly to the HTTP 401
(instead, we treated whatever the server handed us as a
successful message body).
The solution is simple: now that FAILONERROR is a
per-request setting, we move it to get_active_slot to make
sure it is reset for each request.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the current transport-helper code, refs without namespaced refspecs don't
work correctly, so let's always use them.
Some people reported issues with 'git clone --mirror', and this fixes them, as
well as possibly others.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git diff --diff-algorithm algo" is also understood as "git diff
--diff-algorithm=algo".
* jk/diff-algo-finishing-touches:
diff: allow unstuck arguments with --diff-algorithm
git-merge(1): document diff-algorithm option to merge-recursive
The new core.commentchar configuration was not applied to a few
places.
* rt/commentchar-fmt-merge-msg:
fmt-merge-msg: use core.commentchar in tag signatures completely
fmt-merge-msg: respect core.commentchar in people credits
"git bundle" did not like a bundle created using a commit without
any message as its one of the prerequistes.
* lf/bundle-with-tip-wo-message:
bundle: Accept prerequisites without commit messages
"git show-branch" was not prepared to show a very long run of
ancestor operators e.g. foobar^2~2^2^2^2...^2~4 correctly.
* jk/show-branch-strbuf:
show-branch: use strbuf instead of static buffer
Improve error reporting from the http transfer clients.
* jk/http-error-messages:
http: drop http_error function
remote-curl: die directly with http error messages
http: re-word http error message
http: simplify http_error helper function
remote-curl: consistently report repo url for http errors
remote-curl: always show friendlier 404 message
remote-curl: let servers override http 404 advice
remote-curl: show server content on http errors
http: add HTTP_KEEP_ERROR option
Closing (not redirecting to /dev/null) the standard error stream is
not a very smart thing to do. Later open may return file
descriptor #2 for unrelated purpose, and error reporting code may
write into them.
* tr/perl-keep-stderr-open:
t9700: do not close STDERR
perl: redirect stderr to /dev/null instead of closing
Otherwise when using 'git branch -vv' it's hard to see them among so
much output.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The $test variable is used as an interim buffer for
constructing $TRASH_DIRECTORY, and is almost compatible with
it (the exception being that $test has not been converted to
an absolute path). Let's get rid of it entirely so that
later code does not accidentally use it, thinking the two
are interchangeable.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
After the location of $TRASH_DIRECTORY is adjusted by
$TEST_OUTPUT_DIRECTORY, we go on to use the $test variable to make the
trash directory and cd into it. This means that when
$TEST_OUTPUT_DIRECTORY is not "." and an absolute --root has not been
specified, we do not remove the trash directory once the tests are
complete (remove_trash is set to $TRASH_DIRECTORY).
Fix this by always referring to the trash directory as $TRASH_DIRECTORY.
Signed-off-by: John Keeping <john@keeping.me.uk>
Acked-by: Jeff King <peff@peff.net>
Acked-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
No need to calculate a new $c with a space if we are not going to do
anything it with it.
There should be no functional changes, except that a word "foo " with no
suffixes can't be matched. But $cur cannot have a space at the end
anyway. So it's safe.
Based on the code from SZEDER Gábor.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
