When running large git grep (ie: git grep regexp $(git rev-list --all)), glibc error sometimes occur:
*** glibc detected *** git: double free or corruption (!prev): 0x00000000010abdf0 ***
According to gdb the problem originate from release_delta_cash (sha1_file.c:1703)
free(ent->data);
>From my analysis it seems that git grep threads do acquire lock before calling read_sha1_file but not before calling
read_object_with_reference who ends up calling read_sha1_file too.
Adding the lock around read_object_with_reference seems to fix the issue for me.
I've ran git grep about a dozen time and seen no more error while
it usually happened half the time before.
Signed-off-by: Nicolas Morey-Chaisemartin <nicolas@morey-chaisemartin.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make git grep use threads when it is available.
The results below are best of five runs in the Linux repository (on a
box with two cores).
With the patch:
git grep qwerty
1.58user 0.55system 0:01.16elapsed 183%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+800outputs (0major+5774minor)pagefaults 0swaps
Without:
git grep qwerty
1.59user 0.43system 0:02.02elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+800outputs (0major+3716minor)pagefaults 0swaps
And with a pattern with quite a few matches:
With the patch:
$ /usr/bin/time git grep void
5.61user 0.56system 0:03.44elapsed 179%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+800outputs (0major+5587minor)pagefaults 0swaps
Without:
$ /usr/bin/time git grep void
5.36user 0.51system 0:05.87elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+800outputs (0major+3693minor)pagefaults 0swaps
In either case we gain about 40% by the threading.
Signed-off-by: Fredrik Kuivinen <frekui@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Teach "git grep" a new "-q" option to report the presense of a match via
its exit status without showing any output, similar to how "grep -q"
works. Internally "grep" engine already knew this "status-only" mode of
operation because it needed to grep inside log message to filter commits
when called from the "git log" machinery, and this patch only exposes it
to the command line tool.
A somewhat unfair benchmark in the Linux kernel directory shows a dramatic
improvement:
(with patch)
$ time ../git.git/git grep -q linux HEAD ; echo $?
real 0m0.030s
user 0m0.004s
sys 0m0.004s
0
(without patch)
$ time git grep linux HEAD >/dev/null; echo $?
real 0m4.432s
user 0m4.272s
sys 0m0.076s
0
This is "somewhat unfair" because I knew a file with such a string comes
very early in the tree traversal (namely, ".gitignore").
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Don't feed a multiple-line pattern to grep and expect the them to match
with lines in order.
Simplify the grep expressions in the non-fast-forward tests to check
only for the first line of the non-fast-forward warning - having that
line should be enough assurance that the full warning is printed.
Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use the modern form of printing a commit subject instead of piping
the output of rev-list to sed.
Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add test-run-command to .gitignore so it does not pollute
git status output.
Signed-off-by: Alejandro Riveira Fernández <ariveira@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is a followup to ac0ba18 (run-command: convert simple callsites to
use_shell, 2009-12-30), for consistency.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In Internet Explorer 8 (IE8) the 'blame_incremental' view, which uses
JavaScript to generate blame info using AJAX, sometimes hang at the
beginning (at 0%) of blaming, e.g. for larger files with long history
like git's own gitweb/gitweb.perl.
The error shown by JavaScript console is "Unspecified error" at char:2
of the following line in gitweb/gitweb.js:
if (xhr.readyState === 3 && xhr.status !== 200) {
Debugging it using IE8 JScript debuger shown that the error occurs
when trying to access xhr.status (xhr is XMLHttpRequest object).
Watch for xhr object shows 'Unspecified error.' as "value" of
xhr.status, and trying to access xhr.status from console throws error.
This bug is some intermittent bug, depending on XMLHttpRequest timing,
as it doesn't occur in all cases. It is probably caused by the fact
that handleResponse is called from timer (pollTimer), to work around
the fact that some browsers call onreadystatechange handler only once
for each state change, and not like required for 'blame_incremental'
as soon as new data is available from server. It looks like xhr
object is not properly initialized; still it is a bug to throw an
error when accessing xhr.status (and not use 'null' or 'undefined' as
value).
Work around this bug in IE8 by using try-catch block when accessing
xhr.status.
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jc/fix-tree-walk:
read-tree --debug-unpack
unpack-trees.c: look ahead in the index
unpack-trees.c: prepare for looking ahead in the index
Aggressive three-way merge: fix D/F case
traverse_trees(): handle D/F conflict case sanely
more D/F conflict tests
tests: move convenience regexp to match object names to test-lib.sh
Conflicts:
builtin-read-tree.c
unpack-trees.c
unpack-trees.h
* maint:
git-gui: work from the .git dir
git-gui: Fix applying a line when all following lines are deletions
git-gui: Correct file_states when unstaging partly staged entry
git-gui: Fix gitk for branch whose name matches local file
git-gui: Keep repo_config(gui.recentrepos) and .gitconfig in sync
git-gui: handle really long error messages in updateindex.
git-gui: Add hotkeys for "Unstage from commit" and "Revert changes"
git-gui: Makefile: consolidate .FORCE-* targets
* 'maint' of git://git.spearce.org/git-gui:
git-gui: work from the .git dir
git-gui: Fix applying a line when all following lines are deletions
git-gui: Correct file_states when unstaging partly staged entry
git-gui: Fix gitk for branch whose name matches local file
git-gui: Keep repo_config(gui.recentrepos) and .gitconfig in sync
git-gui: handle really long error messages in updateindex.
git-gui: Add hotkeys for "Unstage from commit" and "Revert changes"
git-gui: Makefile: consolidate .FORCE-* targets
Commit 44626dc7 (MSVC: Windows-native implementation for subset
of threads API, 2010-01-15) introduces builtin replacement of
pthreadGC2.dll functionality, thus we can completely drop
dependency on this dll.
Signed-off-by: Michael Lukashov <michael.lukashov@gmail.com>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
e9fcd1e (Add push --set-upstream, 2010-01-16) inadvertently patched
the description of --upstream in the middle of that of --repo.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
bed575e (commit: support commit.status, --status, and --no-status,
2009-12-07) forgot to add the :: that sets off an item from the
paragraph that explains it, breaking the layout.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* 'doc-style/for-next' of git://repo.or.cz/git/trast:
Documentation: merge: use MERGE_HEAD to refer to the remote branch
Documentation: simplify How Merge Works
Documentation: merge: add a section about fast-forward
Documentation: emphasize when git merge terminates early
Documentation: merge: add an overview
Documentation: merge: move merge strategy list to end
Documentation: suggest `reset --merge` in How Merge Works section
Documentation: merge: move configuration section to end
Documentation: emphasise 'git shortlog' in its synopsis
Documentation: show-files is now called git-ls-files
Documentation: tiny git config manual tweaks
Documentation: git gc packs refs by default now
Conflicts:
Documentation/config.txt
14e5d40 (pull: Fix parsing of -X<option>, 2010-01-17) forgot that
merge_name needs to stay as a single non-interpolated string.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
commit 57bddb11 (Documentation/git-merge: reword references to
"remote" and "pull", 2010-01-07) fixed the manual to drop the
assumption that the other branch being merged is from a remote
repository. Unfortunately, in a few places, to do so it
introduced the antecedentless phrase "their versions". Worse, in
passages like the following, 'they' is playing two roles.
| highlighting changes from both the HEAD and their versions.
|
| * Look at the diffs on their own. 'git log --merge -p <path>'
Using HEAD and MERGE_HEAD nicely assigns terminology to "our" and
"their" sides. It also provides the reader with practice using
names that git will recognize on the command line.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
The user most likely does not care about the exact order of
operations because he cannot see it happening anyway. Instead,
try to explain what it means to merge two commits into a single
tree.
While at it:
- Change the heading to TRUE MERGE. The entire manual page is
about how merges work.
- Document MERGE_HEAD. It is a useful feature, since it makes
the parents of the intended merge commit easier to refer to.
- Do not assume commits named on the 'git merge' command line come
from another repository. For simplicity, the discussion of
conflicts still does assume that there is only one and it is a
branch head.
- Do not start list items with `code`. Otherwise, a toolchain bug
produces a line break in the generated nroff, resulting in odd
extra space.
Suggested-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Novices sometimes find the behavior of 'git merge' in the
fast-forward case surprising. Describe it thoroughly.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
A merge-based operation in git can fail in two ways: one that
stops before touching anything, or one that goes ahead and
results in conflicts.
As the 'git merge' manual explains:
| A merge is always between the current `HEAD` and one or more
| commits (usually, branch head or tag), and the index file must
| match the tree of `HEAD` commit (i.e. the contents of the last commit)
| when it starts out.
Unfortunately, the placement of this sentence makes it easy to
skip over, and its formulation leaves the important point, that
any other attempted merge will be gracefully aborted, unspoken.
So give this point its own section and expand upon it.
Probably this could be simplified somewhat: after all, a change
registered in the index is just a special kind of local
uncommited change, so the second added paragraph is only a
special case of the first. It seemed more helpful to be explicit
here.
Inspired by <http://gitster.livejournal.com/25801.html>.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
The reader unfamiliar with the concepts of branching and merging
would have been completely lost. Try to help him with a diagram.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
So the section layout changes as follows:
NAME
SYNOPSIS
DESCRIPTION
OPTIONS
-MERGE STRATEGIES
HOW MERGE WORKS
HOW CONFLICTS ARE PRESENTED
HOW TO RESOLVE CONFLICTS
EXAMPLES
+MERGE STRATEGIES
CONFIGURATION
SEE ALSO
AUTHOR
DOCUMENTATION
GIT
NOTES
The first-time user will care more about conflicts than about
strategies other than 'recursive'.
One of the examples uses -s ours, but I do not think this hinders
readability.
Suggested-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
The 'merge' manual suggests 'reset' to cancel a merge at the end
of the Merge Strategies list. It is more logical to explain this
right before explaining how merge conflicts work, so the daunted
reader can have a way out when he or she needs it most.
While at it, make the advice more dependable and self-contained
by providing the --merge option.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Configuration and environment variables belong to the back matter
of a manual page.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
There is no point doing self-assignments of these variables. Instead,
just export them to the environment, but do so in a sub-shell, because
VAR1=VAL1 VAR2=VAL2 ... command arg1 arg2...
does not mark the variables exported if command that is run
is a shell function, according to POSIX.1.
The callers of do_with_author do not rely on seeing the effect of any
shell variable assignments that may happen inside what was called through
this shell function (currently "output" is the only one), so running it in
the subshell doesn't have an adverse semantic effect.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When git-gui is run from a .git dir, _gitdir would be set to "." by
rev-parse, something that confuses the worktree detection.
Fix by expanding the value of _gitdir to pwd in this special case.
Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
If a diff looked like:
@@
context
-del1
-del2
and you wanted to stage the deletion 'del1', the generated patch
wouldn't apply because it was missing the line 'del2' converted to
context, but this line was counted in the @@-line
Signed-off-by: Jeff Epler <jepler@unpythonic.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When unstaging a partly staged file or submodule, the file_states
list was not updated properly (unless unstaged linewise). Its
index_info part did not contain the former head_info as it should
have but kept its old value.
This seems not to have had any bad effects but diminishes the value
of the file_states list for future enhancements.
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When trying to run gitk on a branch name whose name matches a local
file, it will toss an error saying that the name is ambiguous. Adding
a pair of dashes will make gitk parse the options to the left of
it as branch names. Since wish eats the first pair of dashes we
throw at it, we need to add a second one to ensure they get through.
Signed-off-by: Peter Krefting <peter@softwolves.pp.se>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When the number of recent repo's gets to ten there can be a
situation where an item is removed from the .gitconfig file via
a call to git config --unset, but the internal representation of
that file (repo_config(gui.recentrepo)) is not updated. Then a
subsequent attempt to remove an item from the list fails because
git-gui attempts to call --unset on a value that has already
been removed. This leads to duplicates in the .gitconfig file,
which then also cause errors if the git-gui tries to --unset them
(rather than using --unset-all. --unset-all is not used because it
is not expected that duplicates should ever be allowed to exist.)
When loading the list of recent repositories (proc _get_recentrepos)
if a repo in the list is not considered a valid git reposoitory
then we should go ahead and remove it so it doesn't take up a slot
in the list (since we limit to 10 items). This will prevent a bunch
of invalid entries in the list (which are not shown) from making
valid entries dissapear off the list even when there are less than
ten valid entries.
See: http://code.google.com/p/msysgit/issues/detail?id=362
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
As reported to msysGit (bug #340) it is possible to get some very
long error messages when updating the index. The use of a label to
display this prevents scrolling the output. This patch replaces the
label with a scrollable text widget configured to look like a label.
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
* git://git.bogomips.org/git-svn:
git-svn: allow subset of branches/tags to be specified in glob spec
git-svn: allow UUID to be manually remapped via rewriteUUID
git-svn: update svn mergeinfo test suite
git-svn: document --username/commit-url for branch/tag
git-svn: add --username/commit-url options for branch/tag
git-svn: respect commiturl option for branch/tag
git-svn: fix mismatched src/dst errors for branch/tag
git-svn: handle merge-base failures
git-svn: ignore changeless commits when checking for a cherry-pick
For very large projects it is useful to be able to clone a subset of the
upstream SVN repo's branches. Allow for this by letting the left-side of
the branches and tags glob specs contain a brace-delineated comma-separated
list of names. e.g.:
branches = branches/{red,green}/src:refs/remotes/branches/*
Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Acked-by: Eric Wong <normalperson@yhbt.net>
In certain situations it may be necessary to manually remap an svn
repostitory UUID. For example:
o--- [git-svn clone]
/
[origin svn repo]
\
o--- [svnsync clone]
Imagine that only "git-svn clone" and "svnsync clone" are made available
to external users. Furthur, "git-svn clone" contains only trunk, and for
reasons unknown, "svnsync clone" is missing the revision properties that
normally provide the origin svn repo's UUID.
A git user who has cloned the "git-svn clone" repo now wishes to use
git-svn to pull in the missing branches from the "synsync clone" repo.
In order for git-svn to get the history correct for those branches,
it needs to know the origin svn repo's UUID. Hence rewriteUUID.
Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Acked-by: Eric Wong <normalperson@yhbt.net>
Add a partial branch (e.g., a branch from a project subdirectory) to the
git-svn mergeinfo test repository.
Add a tag and a branch from that tag to the git-svn mergeinfo test repository.
Update the test script to expect a known failure in git-svn exposed by these
additions where merge info for partial branches is not preserved.
Signed-off-by: Andrew Myrick <amyrick@apple.com>
Acked-by: Eric Wong <normalperson@yhbt.net>
Add ability to specify on the command line the username to perform the
operation as and the writable URL of the repository to perform it on.
[ew: shortened subject]
Signed-off-by: Igor Mironov <igor.a.mironov@gmail.com>
Acked-by: Eric Wong <normalperson@yhbt.net>
When constructing a destination URL, use the property 'commiturl' if it
is specified in the configuration file; otherwise take 'url' as usual.
This accommodates the scenario where a user only wants to involve the
writable repository in operations performing a commit and defaults
everything else to a read-only URL.
[ew: shortened subject]
Signed-off-by: Igor Mironov <igor.a.mironov@gmail.com>
Acked-by: Eric Wong <normalperson@yhbt.net>
Change git-svn to warn and continue when merge-base fails while processing svn
merge tickets.
merge-base can fail when a partial branch is created and merged back to trunk
in svn, because it cannot find a common ancestor between the partial branch and
trunk.
Signed-off-by: Andrew Myrick <amyrick@apple.com>
Acked-by: Sam Vilain <sam@vilain.net>
Acked-by: Eric Wong <normalperson@yhbt.net>
Update git-svn to ignore commits that do not change the tree when it is
deciding if an svn merge ticket represents a real branch merge or just a
cherry-pick.
Consider the following integration model in the svn repository:
F---G branch1
/ \
D tag1 \ E tag2
/ \ /
A---B C trunk
branch1 is merged to trunk in commit C.
With this patch, git-svn will correctly identify branch1 as a proper merge
parent, instead of incorrectly ignoring it as a cherry-pick.
Signed-off-by: Andrew Myrick <amyrick@apple.com>
Acked-by: Sam Vilain <sam@vilain.net>
Acked-by: Eric Wong <normalperson@yhbt.net>
4cacc621 made difftool fall back to mergetool.prompt
when difftool.prompt is unconfigured. This adds a test.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Acked-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Acked-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Having recently added support for building git-imap-send on
Windows, we now link against OpenSSL libraries, and the linker
issues the following warning:
warning LNK4044: unrecognized option '/lssl'; ignored
In order to suppress the warning, we change the msvc linker
script to translate an '-lssl' parameter to the ssleay32.lib
library.
Note that the linker script was already including ssleay32.lib
(along with libeay32.lib) as part of the translation of the
'-lcrypto' library parameter. However, libeay32.dll does not
depend on ssleay32.dll and can be used stand-alone, so we remove
ssleay32.lib from the '-lcrypto' translation.
The dependence of ssleay32.dll on libeay32.dll is represented in
the Makefile by the NEEDS_CRYPTO_WITH_SSL build variable.
Also, add the corresponding change to the buildsystem generator.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Acked-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
