Commit Graph

1239 Commits

Author SHA1 Message Date
Jonathan Nieder
3f59481e33 branch: allow a no-op "branch -M <current-branch> HEAD"
Overwriting the current branch with a different commit is forbidden, as it
will make the status recorded in the index and the working tree out of
sync with respect to the HEAD. There however is no reason to forbid it if
the current branch is renamed to itself, which admittedly is something
only an insane user would do, but is handy for scripts.

Test script is by Conrad Irwin.

Reported-by: Soeren Sonnenburg <sonne@debian.org>
Reported-by: Josh Chia (谢任中)
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Conrad Irwin <conrad.irwin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-28 11:40:46 -08:00
Nguyễn Thái Ngọc Duy
fc001b526c checkout,merge: loosen overwriting untracked file check based on info/exclude
Back in 1127148 (Loosen "working file will be lost" check in
Porcelain-ish - 2006-12-04), git-checkout.sh learned to quietly
overwrite ignored files. Howver the code only took .gitignore files
into account.

Standard ignored files include all specified in .gitignore files in
working directory _and_ $GIT_DIR/info/exclude. This patch makes sure
ignored files in info/exclude can also be overwritten automatically in
the spirit of the original patch.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-28 10:37:50 -08:00
Vincent van Ravesteijn
5cd75c7d8d builtin-branch: Fix crash on invalid use of --force
The option --force should not put us in 'create branch' mode. The
fact that this option is only valid in 'create branch' mode is
already caught by the the next 'if' in which we assure that we
are in the correct mode.

Without this patch, "git branch -f" without any other argument ends
up calling create_branch without any branch name.

Signed-off-by: Vincent van Ravesteijn <vfr@lyx.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-23 13:23:33 -08:00
Jonathan Nieder
b15aa973b2 revert --abort: do not leave behind useless sequencer-old directory
The "git cherry-pick --abort" command currently renames the
.git/sequencer directory to .git/sequencer-old instead of removing it
on success due to an accident.  cherry-pick --abort is designed to
work in three steps:

 1) find which commit to roll back to
 2) call "git reset --merge <commit>" to move to that commit
 3) remove the .git/sequencer directory

But the careless author forgot step 3 entirely.  The only reason the
command worked anyway is that "git reset --merge <commit>" renames the
.git/sequencer directory as a secondary effect --- after moving to
<commit>, or so the logic goes, it is unlikely but possible that the
caller of git reset wants to continue the series of cherry-picks that
was in progress, so git renames the sequencer state to
.git/sequencer-old to be helpful while allowing the cherry-pick to be
resumed if the caller did not want to end the sequence after all.

By running "git cherry-pick --abort", the operator has clearly
indicated that she is not planning to continue cherry-picking.  Remove
the (renamed) .git/sequencer directory as intended all along.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-23 10:56:29 -08:00
Johannes Sixt
2a4037d0a7 Fix revert --abort on Windows
On Windows, it is not possible to rename or remove a directory that has
open files. 'revert --abort' renamed .git/sequencer when it still had
.git/sequencer/head open. Close the file as early as possible to allow
the rename operation on Windows.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-23 10:54:57 -08:00
Nguyễn Thái Ngọc Duy
b4524d343b revert: do not pass non-literal string as format to git_path()
This fixes the following warning.

    CC builtin/revert.o
builtin/revert.c: In function ‘write_cherry_pick_head’:
builtin/revert.c:311: warning: format not a string literal and no format arguments

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-23 09:29:53 -08:00
Jonathan Nieder
c427b211b3 revert: remove --reset compatibility option
Remove the "git cherry-pick --reset" option, which has a different
preferred spelling nowadays ("--quit").  Luckily the old --reset name
was not around long enough for anyone to get used to it.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-22 18:18:02 -08:00
Jonathan Nieder
539047c19e revert: introduce --abort to cancel a failed cherry-pick
After running some ill-advised command like "git cherry-pick
HEAD..linux-next", the bewildered novice may want to return to more
familiar territory.  Introduce a "git cherry-pick --abort" command
that rolls back the entire cherry-pick sequence and places the
repository back on solid ground.

Just like "git merge --abort", this internally uses "git reset
--merge", so local changes not involved in the conflict resolution are
preserved.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-22 18:16:59 -08:00
Jonathan Nieder
82433cdf4d revert: write REVERT_HEAD pseudoref during conflicted revert
When conflicts are encountered while reverting a commit, it can be
handy to have the name of that commit easily available.  For example,
to produce a copy of the patch to refer to while resolving conflicts:

	$ git revert 2eceb2a8
	error: could not revert 2eceb2a8... awesome, buggy feature
	$ git show -R REVERT_HEAD >the-patch
	$ edit $(git diff --name-only)

Set a REVERT_HEAD pseudoref when "git revert" does not make a commit,
for cases like this.  This also makes it possible for scripts to
distinguish between a revert that encountered conflicts and other
sources of an unmerged index.

After successfully committing, resetting with "git reset", or moving
to another commit with "git checkout" or "git reset", the pseudoref is
no longer useful, so remove it.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-22 13:34:44 -08:00
Jonathan Nieder
b8c74690b2 revert: improve error message for cherry-pick during cherry-pick
In the spirit of v1.6.3.3~3^2 (refuse to merge during a merge,
2009-07-01), "git cherry-pick" refuses to start a new cherry-pick when
in the middle of an existing conflicted cherry-pick in the following
sequence:

 1. git cherry-pick HEAD..origin
 2. resolve conflicts
 3. git cherry-pick HEAD..origin (instead of "git cherry-pick
    --continue", by mistake)

Good.  However, the error message on attempting step 3 is more
convoluted than necessary:

  $ git cherry-pick HEAD..origin
  error: .git/sequencer already exists.
  error: A cherry-pick or revert is in progress.
  hint: Use --continue to continue the operation
  hint: or --quit to forget about it
  fatal: cherry-pick failed

Clarify by removing the redundant first "error:" message, simplifying
the advice, and using lower-case and no full stops to be consistent
with other commands that prefix their messages with "error:", so it
becomes

  error: a cherry-pick or revert is already in progress
  hint: try "git cherry-pick (--continue | --quit)"
  fatal: cherry-pick failed

The "fatal: cherry-pick failed" line seems unnecessary, too, but
that can be fixed some other day.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-22 13:33:49 -08:00
Jonathan Nieder
dffc860028 revert: rearrange pick_revisions() for clarity
Deal completely with "cherry-pick --quit" and --continue at the
beginning of pick_revisions(), leaving the rest of the function for
the more interesting "git cherry-pick <commits>" case.

No functional change intended.  The impact is just to unindent the
code a little.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-22 13:33:01 -08:00
Jonathan Nieder
f80a87262a revert: rename --reset option to --quit
The option to "git cherry-pick" and "git revert" to discard the
sequencer state introduced by v1.7.8-rc0~141^2~6 (revert: Introduce
--reset to remove sequencer state, 2011-08-04) has a confusing name.
Change it now, while we still have the time.

The new name for "cherry-pick, please get out of my way, since I've
long forgotten about the sequence of commits I was cherry-picking when
you wrote that old .git/sequencer directory" is --quit.  Mnemonic:
this is analagous to quiting a program the user is no longer using ---
we just want to get out of the multiple-command cherry-pick procedure
and not to reset HEAD or rewind any other old state.

The "--reset" option is kept as a synonym to minimize the impact.  We
might consider dropping it for simplicity in a separate patch, though.

Adjust documentation and tests to use the newly preferred name (--quit)
instead of --reset.  While at it, let's clarify the short descriptions
of these operations in "-h" output.

Before:

	--reset		forget the current operation
	--continue	continue the current operation

After:

	--quit		end revert or cherry-pick sequence
	--continue	resume revert or cherry-pick sequence

Noticed-by: Phil Hord <phil.hord@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-22 13:30:35 -08:00
Junio C Hamano
4c00c852b3 Sync with 1.7.7.4 2011-11-18 11:30:02 -08:00
Junio C Hamano
c9de921848 Merge branch 'jc/maint-name-rev-all' into maint
* jc/maint-name-rev-all:
  name-rev --all: do not even attempt to describe non-commit object
2011-11-18 11:14:16 -08:00
Jonathan Nieder
418c9b176c do not let git_path clobber errno when reporting errors
Because git_path() calls vsnprintf(), code like

	fd = open(git_path("SQUASH_MSG"), O_WRONLY | O_CREAT, 0666);
	die_errno(_("Could not write to '%s'"), git_path("SQUASH_MSG"));

can end up printing an error indicator from vsnprintf() instead of
open() by mistake.  Store the path we are trying to write to in a
temporary variable and pass _that_ to die_errno(), so the messages
written by git cherry-pick/revert and git merge can avoid this source
of confusion.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-17 15:06:27 -08:00
Junio C Hamano
f63c79dbc8 pack-object: tolerate broken packs that have duplicated objects
When --reuse-delta is in effect (which is the default), and an existing
pack in the repository has the same object registered twice (e.g. one copy
in a non-delta format and the other copy in a delta against some other
object), an attempt to repack the repository can result in a cyclic delta
dependency, causing write_one() function to infinitely recurse into
itself.

Detect such a case and break the loopy dependency by writing out an object
that is involved in such a loop in the non-delta format.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-16 22:06:08 -08:00
Junio C Hamano
68be2fea50 receive-pack, fetch-pack: reject bogus pack that records objects twice
When receive-pack & fetch-pack are run and store the pack obtained over
the wire to a local repository, they internally run the index-pack command
with the --strict option. Make sure that we reject incoming packfile that
records objects twice to avoid spreading such a damage.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-16 22:05:21 -08:00
Ramkumar Ramachandra
5e1e6b93d0 revert: prettify fatal messages
Some of the fatal messages printed by revert and cherry-pick look ugly
like the following:

  fatal: Could not open .git/sequencer/todo.: No such file or directory

The culprit here is that these callers of the die_errno() function did not
take it into account that the message string they give to it is followed
by ": <strerror>", hence the message typically should not end with the
full-stop.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-15 16:59:46 -08:00
Junio C Hamano
f0c7fd49c0 Revert "upload-archive: use start_command instead of fork"
This reverts commit c09cd77ea2, expecting a
better version to be rerolled soon.
2011-11-15 15:39:33 -08:00
Junio C Hamano
dc865af65f Merge branch 'ly/mktree-using-strbuf'
* ly/mktree-using-strbuf:
  mktree: fix a memory leak in write_tree()
2011-11-11 21:34:06 -08:00
Junio C Hamano
c444c16589 Merge "Move 'builtin-*' into a 'builtin/' subdirectory" 2011-11-10 09:10:51 -08:00
Junio C Hamano
d7a0129b3c Merge branch 'jc/remote-setbranches-usage-fix'
* jc/remote-setbranches-usage-fix:
  remote: fix set-branches usage
2011-11-08 16:40:31 -08:00
Junio C Hamano
8327ee8677 Merge branch 'fc/remote-seturl-usage-fix'
* fc/remote-seturl-usage-fix:
  remote: fix remote set-url usage
2011-11-08 16:40:27 -08:00
Junio C Hamano
992499d853 Merge branch 'dm/pack-objects-update' into maint
* dm/pack-objects-update:
  pack-objects: don't traverse objects unnecessarily
  pack-objects: rewrite add_descendants_to_write_order() iteratively
  pack-objects: use unsigned int for counter and offset values
  pack-objects: mark add_to_write_order() as inline
2011-11-08 16:26:45 -08:00
Junio C Hamano
92622e6214 Merge branch 'ss/blame-textconv-fake-working-tree'
* ss/blame-textconv-fake-working-tree:
  blame.c: Properly initialize strbuf after calling textconv_object(), again
2011-11-07 16:43:19 -08:00
Sebastian Schuberth
8518088fe8 blame.c: Properly initialize strbuf after calling textconv_object(), again
2564aa4 started to initialize buf.alloc, but that should actually be one
more byte than the string length due to the trailing \0. Also, do not
modify buf.alloc out of the strbuf code. Use the existing strbuf_attach
instead.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-07 16:42:57 -08:00
Junio C Hamano
656cdf0c9e remote: fix set-branches usage
Bad copy-paste.

Otherwise "git remote set-branches" without necessary argument
will result in an error message and help for set-url subcommand.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-06 21:15:30 -08:00
Ævar Arnfjörð Bjarmason
83838d5c1b cast variable in call to free() in builtin/diff.c and submodule.c
Both of these free() calls are freeing a "const unsigned char (*)[20]"
type while free() expects a "void *". This results in the following
warning under clang 2.9:

    builtin/diff.c:185:7: warning: passing 'const unsigned char (*)[20]' to parameter of type 'void *' discards qualifiers
            free(parent);
                 ^~~~~~

    submodule.c:394:7: warning: passing 'const unsigned char (*)[20]' to parameter of type 'void *' discards qualifiers
            free(parents);
                 ^~~~~~~

This free()-ing without a cast was added by Jim Meyering to
builtin/diff.c in v1.7.6-rc3~4 and later by Fredrik Gustafsson in
submodule.c in v1.7.7-rc1~25^2.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-06 10:43:18 -08:00
Ævar Arnfjörð Bjarmason
473f4c96e3 apply: get rid of useless x < 0 comparison on a size_t type
According to the C standard size_t is always unsigned, therefore the
comparison "n1 < 0 || n2 < 0" when n1 and n2 are size_t will always be
false.

This was raised by clang 2.9 which throws this warning when compiling
apply.c:

    builtin/apply.c:253:9: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
            if (n1 < 0 || n2 < 0)
                ~~ ^ ~
    builtin/apply.c:253:19: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
            if (n1 < 0 || n2 < 0)
                          ~~ ^ ~

This check was originally added in v1.6.5-rc0~53^2 by Giuseppe Bilotta
while adding an option to git-apply to ignore whitespace differences.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-06 10:36:59 -08:00
Junio C Hamano
ee6dfb2d83 receive-pack: do not expect object 0{40} to exist
When pushing to delete a ref, it uses 0{40} as an object name to signal
that the request is a deletion. We shouldn't trigger "deletion of a
corrupt ref" warning in such a case, which was designed to notice that a
ref points at an object that is truly missing from the repository.

Reported-by: Stefan Näwe
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-03 14:27:04 -07:00
Tay Ray Chuan
3706ed298c branch -m: handle no arg properly
Modify the option parsing heuristic to handle all -m (rename) cases,
including the no-arg case.

Previously, this "fell through" to the (argc <= 2) case and caused
segfault.

Reported-by: Stefan Näwe <stefan.naewe@atlas-elektronik.com>
Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 12:35:37 -07:00
Junio C Hamano
a4fdd79f13 Merge branch 'bc/attr-ignore-case' into maint
* bc/attr-ignore-case:
  attr.c: respect core.ignorecase when matching attribute patterns
  attr: read core.attributesfile from git_default_core_config
  builtin/mv.c: plug miniscule memory leak
  cleanup: use internal memory allocation wrapper functions everywhere
  attr.c: avoid inappropriate access to strbuf "buf" member

Conflicts:
	remote.c
2011-11-01 15:54:46 -07:00
Junio C Hamano
ffa4c364f4 Merge branch 'cn/fetch-prune' into maint
* cn/fetch-prune:
  fetch: treat --tags like refs/tags/*:refs/tags/* when pruning
  fetch: honor the user-provided refspecs when pruning refs
  remote: separate out the remote_find_tracking logic into query_refspecs
  t5510: add tests for fetch --prune
  fetch: free all the additional refspecs
2011-11-01 15:51:01 -07:00
Junio C Hamano
b919f8404a Merge branch 'ss/blame-textconv-fake-working-tree'
* ss/blame-textconv-fake-working-tree:
  (squash) test for previous
  blame.c: Properly initialize strbuf after calling, textconv_object()

Conflicts:
	t/t8006-blame-textconv.sh
2011-11-01 15:20:28 -07:00
Junio C Hamano
7406aa203f Merge branch 'ef/mingw-upload-archive'
* ef/mingw-upload-archive:
  mingw: poll.h is no longer in sys/
  upload-archive: use start_command instead of fork
  compat/win32/poll.c: upgrade from upstream
  mingw: move poll out of sys-folder
2011-11-01 15:20:22 -07:00
Junio C Hamano
84a9ea90e1 Merge branch 'dm/pack-objects-update'
* dm/pack-objects-update:
  pack-objects: don't traverse objects unnecessarily
  pack-objects: rewrite add_descendants_to_write_order() iteratively
  pack-objects: use unsigned int for counter and offset values
  pack-objects: mark add_to_write_order() as inline
2011-11-01 15:20:07 -07:00
Erik Faye-Lund
c09cd77ea2 upload-archive: use start_command instead of fork
The POSIX-function fork is not supported on Windows. Use our
start_command API instead.

As this is the last call-site that depends on the fork-stub in
compat/mingw.h, remove that as well.

Add an undocumented flag to git-archive that tells it that the
action originated from a remote, so features can be disabled.
Thanks to Jeff King for work on this part.

Remove the NOT_MINGW-prereq for t5000, as git-archive --remote
now works.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-30 18:45:21 -07:00
Sebastian Schuberth
2564aa48ce blame.c: Properly initialize strbuf after calling, textconv_object()
For a plain string where only the length is known, strbuf.alloc needs to
be initialized to the length. Otherwise strbuf.alloc is 0 and a later
call to strbuf_setlen() will fail.

This bug surfaced when calling git blame under Windows on a *.doc file.
The *.doc file is converted to plain text by antiword via the textconv
mechanism. However, the plain text returned by antiword contains DOS line
endings instead of Unix line endings which triggered the strbuf_setlen()
which previous to this patch failed.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-28 08:41:56 -07:00
Junio C Hamano
220c0453c1 Merge branch 'js/grep-mutex'
* js/grep-mutex:
  builtin/grep: simplify lock_and_read_sha1_file()
  builtin/grep: make lock/unlock into static inline functions
  git grep: be careful to use mutexes only when they are initialized
2011-10-27 12:04:02 -07:00
Junio C Hamano
82bc9f515c Merge branch 'maint'
* maint:
  clone: Quote user supplied path in a single quote pair
  read-cache.c: fix index memory allocation
2011-10-27 12:03:37 -07:00
Richard Hartmann
8debf69638 clone: Quote user supplied path in a single quote pair
Without this patch,

    $ git clone foo .

results in this:

    Cloning into ....
    done.

With it:

    Cloning into '.'...
    done.

Signed-off-by: Richard Hartmann <richih.mailinglist@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-27 12:02:02 -07:00
Nguyễn Thái Ngọc Duy
d688cf07b1 tree_entry_interesting(): give meaningful names to return values
It is a basic code hygiene to avoid magic constants that are unnamed.
Besides, this helps extending the value later on for "interesting, but
cannot decide if the entry truely matches yet" (ie. prefix matches)

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-27 11:38:24 -07:00
Nguyễn Thái Ngọc Duy
0de1633783 tree-walk.c: do not leak internal structure in tree_entry_len()
tree_entry_len() does not simply take two random arguments and return
a tree length. The two pointers must point to a tree item structure,
or struct name_entry. Passing random pointers will return incorrect
value.

Force callers to pass struct name_entry instead of two pointers (with
hope that they don't manually construct struct name_entry themselves)

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-27 11:08:26 -07:00
Junio C Hamano
9c0c09f791 Merge branch 'cn/fetch-prune'
* cn/fetch-prune:
  fetch: treat --tags like refs/tags/*:refs/tags/* when pruning
  fetch: honor the user-provided refspecs when pruning refs
  remote: separate out the remote_find_tracking logic into query_refspecs
  t5510: add tests for fetch --prune
  fetch: free all the additional refspecs

Conflicts:
	remote.c
2011-10-26 16:16:29 -07:00
Junio C Hamano
60f60b4962 Merge branch 'jk/argv-array' into maint
* jk/argv-array:
  run_hook: use argv_array API
  checkout: use argv_array API
  bisect: use argv_array API
  quote: provide sq_dequote_to_argv_array
  refactor argv_array into generic code
  quote.h: fix bogus comment
  add sha1_array API docs
2011-10-26 16:13:31 -07:00
Junio C Hamano
7bb07f6fbf Merge branch 'jc/run-receive-hook-cleanup' into maint
* jc/run-receive-hook-cleanup:
  refactor run_receive_hook()
2011-10-26 16:13:31 -07:00
Junio C Hamano
f0911b996c Merge branch 'maint-1.7.6' into maint
* maint-1.7.6:
  notes_merge_commit(): do not pass temporary buffer to other function
  gitweb: Fix links to lines in blobs when javascript-actions are enabled
  mergetool: no longer need to save standard input
  mergetool: Use args as pathspec to unmerged files
  t9159-*.sh: skip for mergeinfo test for svn <= 1.4
  date.c: Support iso8601 timezone formats
  remote: only update remote-tracking branch if updating refspec
  remote rename: warn when refspec was not updated
  remote: "rename o foo" should not rename ref "origin/bar"
  remote: write correct fetch spec when renaming remote 'remote'
2011-10-26 16:13:27 -07:00
Junio C Hamano
716b64a73e Merge branch 'mz/remote-rename' into maint-1.7.6
* mz/remote-rename:
  remote: only update remote-tracking branch if updating refspec
  remote rename: warn when refspec was not updated
  remote: "rename o foo" should not rename ref "origin/bar"
  remote: write correct fetch spec when renaming remote 'remote'
2011-10-26 16:12:19 -07:00
Junio C Hamano
764161391f builtin/grep: simplify lock_and_read_sha1_file()
As read_sha1_lock/unlock have been made aware of use_threads,
this caller can be made a lot simpler.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-26 13:09:23 -07:00
Junio C Hamano
1487a12ba2 builtin/grep: make lock/unlock into static inline functions
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-26 13:09:04 -07:00
Johannes Schindelin
cdf0553769 git grep: be careful to use mutexes only when they are initialized
Rather nasty things happen when a mutex is not initialized but locked
nevertheless. Now, when we're not running in a threaded manner, the mutex
is not initialized, which is correct. But then we went and used the mutex
anyway, which -- at least on Windows -- leads to a hard crash (ordinarily
it would be called a segmentation fault, but in Windows speak it is an
access violation).

This problem was identified by our faithful tests when run in the msysGit
environment.

To avoid having to wrap the line due to the 80 column limit, we use
the name "WHEN_THREADED" instead of "IF_USE_THREADS" because it is one
character shorter. Which is all we need in this case.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-26 11:35:49 -07:00
Junio C Hamano
470bbbc4dc Merge branch 'jc/match-refs-clarify'
* jc/match-refs-clarify:
  rename "match_refs()" to "match_push_refs()"
  send-pack: typofix error message
2011-10-21 16:04:35 -07:00
Junio C Hamano
2070950633 Merge branch 'jk/maint-pack-objects-compete-with-delete'
* jk/maint-pack-objects-compete-with-delete:
  downgrade "packfile cannot be accessed" errors to warnings
  pack-objects: protect against disappearing packs
2011-10-21 16:04:33 -07:00
Junio C Hamano
d25a265220 Merge branch 'nd/maint-autofix-tag-in-head' into maint
* nd/maint-autofix-tag-in-head:
  Accept tags in HEAD or MERGE_HEAD
  merge: remove global variable head[]
  merge: use return value of resolve_ref() to determine if HEAD is invalid
  merge: keep stash[] a local variable

Conflicts:
	builtin/merge.c
2011-10-21 10:49:26 -07:00
Junio C Hamano
e63f87a6f7 Merge branch 'jc/apply-blank-at-eof-fix' into maint
* jc/apply-blank-at-eof-fix:
  apply --whitespace=error: correctly report new blank lines at end
2011-10-21 10:49:26 -07:00
Junio C Hamano
689b047072 Merge branch 'il/archive-err-signal' into maint
* il/archive-err-signal:
  Support ERR in remote archive like in fetch/push
2011-10-21 10:49:25 -07:00
Junio C Hamano
cec3e186f7 Merge branch 'jm/maint-apply-detects-corrupt-patch-header' into maint
* jm/maint-apply-detects-corrupt-patch-header:
  fix "git apply --index ..." not to deref NULL
2011-10-21 10:49:24 -07:00
Junio C Hamano
df6840855d Merge branch 'jc/checkout-from-tree-keep-local-changes' into maint
* jc/checkout-from-tree-keep-local-changes:
  checkout $tree $path: do not clobber local changes in $path not in $tree
2011-10-21 10:49:24 -07:00
Junio C Hamano
634b29d270 Merge branch 'mm/maint-config-explicit-bool-display' into maint
* mm/maint-config-explicit-bool-display:
  config: display key_delim for config --bool --get-regexp
2011-10-21 10:49:24 -07:00
Dan McGee
38d4debb6d pack-objects: don't traverse objects unnecessarily
This brings back some of the performance lost in optimizing recency
order inside pack objects. We were doing extreme amounts of object
re-traversal: for the 2.14 million objects in the Linux kernel
repository, we were calling add_to_write_order() over 1.03 billion times
(a 0.2% hit rate, making 99.8% of of these calls extraneous).

Two optimizations take place here- we can start our objects array
iteration from a known point where we left off before we started trying
to find our tags, and we don't need to do the deep dives required by
add_family_to_write_order() if the object has already been marked as
filled.

These two optimizations bring some pretty spectacular results via `perf
stat`:

task-clock:   83373 ms        --> 43800 ms         (50% faster)
cycles:       221,633,461,676 --> 116,307,209,986  (47% fewer)
instructions: 149,299,179,939 --> 122,998,800,184  (18% fewer)

Helped-by: Ramsay Jones (format string fix in "die" message)
Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-20 17:17:49 -07:00
Junio C Hamano
3dfbe68fc2 Merge branch 'js/merge-edit-option'
* js/merge-edit-option:
  Teach merge the '[-e|--edit]' option

Conflicts:
	builtin/merge.c
2011-10-19 10:49:27 -07:00
Junio C Hamano
541b9cf146 Merge branch 'js/no-cherry-pick-head-after-punted'
* js/no-cherry-pick-head-after-punted:
  cherry-pick: do not give irrelevant advice when cherry-pick punted
  revert.c: defer writing CHERRY_PICK_HEAD till it is safe to do so
2011-10-19 10:49:05 -07:00
Junio C Hamano
c31b87d111 Merge branch 'jm/maint-apply-detects-corrupt-patch-header'
* jm/maint-apply-detects-corrupt-patch-header:
  fix "git apply --index ..." not to deref NULL
2011-10-19 10:48:29 -07:00
Dan McGee
f380872f0a pack-objects: rewrite add_descendants_to_write_order() iteratively
This removes the need to call this function recursively, shinking the
code size slightly and netting a small performance increase.

Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-18 00:16:32 -07:00
Dan McGee
92bef1a14a pack-objects: use unsigned int for counter and offset values
This is done in some of the new pack layout code introduced in commit
1b4bb16b9e. This more closely matches the nr_objects global that is
unsigned that these variables are based off of and bounded by.

Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-18 00:16:32 -07:00
Dan McGee
be12681896 pack-objects: mark add_to_write_order() as inline
This function is a whole 26 bytes when compiled on x86_64, but is
currently invoked over 1.037 billion times when running pack-objects on
the Linux kernel git repository. This is hitting the point where
micro-optimizations do make a difference, and inlining it only increases
the object file size by 38 bytes.

As reported by perf, this dropped task-clock from 84183 to 83373 ms, and
total cycles from 223.5 billion to 221.6 billion. Not astronomical, but
worth getting for adding one word.

Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-18 00:16:31 -07:00
Junio C Hamano
a200dc8e62 Merge branch 'bc/attr-ignore-case'
* bc/attr-ignore-case:
  attr.c: respect core.ignorecase when matching attribute patterns
  attr: read core.attributesfile from git_default_core_config
  builtin/mv.c: plug miniscule memory leak
  cleanup: use internal memory allocation wrapper functions everywhere
  attr.c: avoid inappropriate access to strbuf "buf" member

Conflicts:
	transport-helper.c
2011-10-17 21:37:14 -07:00
Junio C Hamano
e22bb14d80 Merge branch 'mm/maint-config-explicit-bool-display'
* mm/maint-config-explicit-bool-display:
  config: display key_delim for config --bool --get-regexp
2011-10-17 21:37:12 -07:00
Junio C Hamano
3f7d11c454 Merge branch 'tc/fetch-leak'
* tc/fetch-leak:
  fetch: plug two leaks on error exit in store_updated_refs

Conflicts:
	builtin/fetch.c
2011-10-17 21:37:12 -07:00
Junio C Hamano
cdc2b2f32c Merge branch 'ph/push-to-delete-nothing'
* ph/push-to-delete-nothing:
  receive-pack: don't pass non-existent refs to post-{receive,update} hooks

Conflicts:
	builtin/receive-pack.c
2011-10-17 21:37:10 -07:00
Junio C Hamano
66d2c22f41 Merge branch 'jc/checkout-from-tree-keep-local-changes'
* jc/checkout-from-tree-keep-local-changes:
  checkout $tree $path: do not clobber local changes in $path not in $tree
2011-10-17 21:37:09 -07:00
Carlos Martín Nieto
e8c1e6c796 fetch: treat --tags like refs/tags/*:refs/tags/* when pruning
If --tags is specified, add that refspec to the list given to
prune_refs so it knows to treat it as a filter on what refs to
should consider for prunning. This way

    git fetch --prune --tags origin

only prunes tags and doesn't delete the branch refs.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-15 22:00:37 -07:00
Carlos Martín Nieto
ed43de6ec3 fetch: honor the user-provided refspecs when pruning refs
If the user gave us refspecs on the command line, we should use those
when deciding whether to prune a ref instead of relying on the
refspecs in the config.

Previously, running

    git fetch --prune origin refs/heads/master:refs/remotes/origin/master

would delete every other ref under the origin namespace because we
were using the refspec to filter the available refs but using the
configured refspec to figure out if a ref had been deleted on the
remote. This is clearly the wrong thing to do.

Change prune_refs and get_stale_heads to simply accept a list of
references and a list of refspecs. The caller of either function needs
to decide what refspecs should be used to decide whether a ref is
stale.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-15 21:56:13 -07:00
Junio C Hamano
f5fcb59034 Merge branch 'ms/patch-id-with-overlong-line' into maint
* ms/patch-id-with-overlong-line:
  patch-id.c: use strbuf instead of a fixed buffer
2011-10-15 20:46:39 -07:00
Junio C Hamano
6323a14701 Merge branch 'jc/maint-bundle-too-quiet' into maint
* jc/maint-bundle-too-quiet:
  Teach progress eye-candy to fetch_refs_from_bundle()
2011-10-15 20:46:39 -07:00
Junio C Hamano
d7b7dd3849 Merge branch 'jc/maint-fsck-fwrite-size-check' into maint
* jc/maint-fsck-fwrite-size-check:
  fsck: do not abort upon finding an empty blob
2011-10-15 20:46:38 -07:00
Junio C Hamano
7c4f050ae1 Merge branch 'nm/grep-object-sha1-lock' into maint
* nm/grep-object-sha1-lock:
  grep: Fix race condition in delta_base_cache

Conflicts:
	builtin/grep.c
2011-10-15 20:46:37 -07:00
Junio C Hamano
efe7aecbce Merge branch 'jc/grep-untracked-exclude'
* jc/grep-untracked-exclude:
  grep: fix the error message that mentions --exclude
2011-10-15 20:27:19 -07:00
Junio C Hamano
9fddaf7896 Merge branch 'jc/maint-grep-untracked-exclude' into jc/grep-untracked-exclude
* jc/maint-grep-untracked-exclude:
  grep: fix the error message that mentions --exclude

Conflicts:
	builtin/grep.c
2011-10-15 20:26:52 -07:00
Jeff King
58a6a9cc43 downgrade "packfile cannot be accessed" errors to warnings
These can happen if another process simultaneously prunes a
pack. But that is not usually an error condition, because a
properly-running prune should have repacked the object into
a new pack. So we will notice that the pack has disappeared
unexpectedly, print a message, try other packs (possibly
after re-scanning the list of packs), and find it in the new
pack.

Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-14 11:43:09 -07:00
Jeff King
4c08018204 pack-objects: protect against disappearing packs
It's possible that while pack-objects is running, a
simultaneously running prune process might delete a pack
that we are interested in. Because we load the pack indices
early on, we know that the pack contains our item, but by
the time we try to open and map it, it is gone.

Since c715f78, we already protect against this in the normal
object access code path, but pack-objects accesses the packs
at a lower level.  In the normal access path, we call
find_pack_entry, which will call find_pack_entry_one on each
pack index, which does the actual lookup. If it gets a hit,
we will actually open and verify the validity of the
matching packfile (using c715f78's is_pack_valid). If we
can't open it, we'll issue a warning and pretend that we
didn't find it, causing us to go on to the next pack (or on
to loose objects).

Furthermore, we will cache the descriptor to the opened
packfile. Which means that later, when we actually try to
access the object, we are likely to still have that packfile
opened, and won't care if it has been unlinked from the
filesystem.

Notice the "likely" above. If there is another pack access
in the interim, and we run out of descriptors, we could
close the pack. And then a later attempt to access the
closed pack could fail (we'll try to re-open it, of course,
but it may have been deleted). In practice, this doesn't
happen because we tend to look up items and then access them
immediately.

Pack-objects does not follow this code path. Instead, it
accesses the packs at a much lower level, using
find_pack_entry_one directly. This means we skip the
is_pack_valid check, and may end up with the name of a
packfile, but no open descriptor.

We can add the same is_pack_valid check here. Unfortunately,
the access patterns of pack-objects are not quite as nice
for keeping lookup and object access together. We look up
each object as we find out about it, and the only later when
writing the packfile do we necessarily access it. Which
means that the opened packfile may be closed in the interim.

In practice, however, adding this check still has value, for
three reasons.

  1. If you have a reasonable number of packs and/or a
     reasonable file descriptor limit, you can keep all of
     your packs open simultaneously. If this is the case,
     then the race is impossible to trigger.

  2. Even if you can't keep all packs open at once, you
     may end up keeping the deleted one open (i.e., you may
     get lucky).

  3. The race window is shortened. You may notice early that
     the pack is gone, and not try to access it. Triggering
     the problem without this check means deleting the pack
     any time after we read the list of index files, but
     before we access the looked-up objects.  Triggering it
     with this check means deleting the pack means deleting
     the pack after we do a lookup (and successfully access
     the packfile), but before we access the object. Which
     is a smaller window.

Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-14 11:42:37 -07:00
Junio C Hamano
1810abb994 Merge branch 'il/archive-err-signal'
* il/archive-err-signal:
  Support ERR in remote archive like in fetch/push
2011-10-13 19:03:23 -07:00
Junio C Hamano
ab1e76b88c Merge branch 'jc/grep-untracked-exclude'
* jc/grep-untracked-exclude:
  grep: teach --untracked and --exclude-standard options
2011-10-13 19:03:23 -07:00
Junio C Hamano
0941d60545 Merge branch 'rs/pending'
* rs/pending:
  commit: factor out clear_commit_marks_for_object_array
  checkout: use leak_pending flag
  bundle: use leak_pending flag
  bisect: use leak_pending flag
  revision: add leak_pending flag
  checkout: use add_pending_{object,sha1} in orphan check
  revision: factor out add_pending_sha1
  checkout: check for "Previous HEAD" notice in t2020

Conflicts:
	builtin/checkout.c
	revision.c
2011-10-13 19:03:22 -07:00
Junio C Hamano
89dfd2dfbf Merge branch 'jc/apply-blank-at-eof-fix'
* jc/apply-blank-at-eof-fix:
  apply --whitespace=error: correctly report new blank lines at end
2011-10-13 19:03:20 -07:00
Junio C Hamano
0fd8cb3fec Merge branch 'nd/maint-autofix-tag-in-head'
* nd/maint-autofix-tag-in-head:
  Accept tags in HEAD or MERGE_HEAD
  merge: remove global variable head[]
  merge: use return value of resolve_ref() to determine if HEAD is invalid
  merge: keep stash[] a local variable

Conflicts:
	builtin/merge.c
2011-10-13 19:03:19 -07:00
Junio C Hamano
6fdab32e14 Merge branch 'bw/grep-no-index-no-exclude'
* bw/grep-no-index-no-exclude:
  grep --no-index: don't use git standard exclusions
  grep: do not use --index in the short usage output
2011-10-13 19:03:18 -07:00
Jay Soffian
66f4b98ad9 Teach merge the '[-e|--edit]' option
Implemented internally instead of as "git merge --no-commit && git commit"
so that "merge --edit" is otherwise consistent (hooks, etc) with "merge".

Note: the edit message does not include the status information that one
gets with "commit --status" and it is cleaned up after editing like one
gets with "commit --cleanup=default". A later patch could add the status
information if desired.

Note: previously we were not calling stripspace() after running the
prepare-commit-msg hook. Now we are, stripping comments and
leading/trailing whitespace lines if --edit is given, otherwise only
stripping leading/trailing whitespace lines if not given --edit.

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-12 13:17:18 -07:00
Junio C Hamano
af543833d4 Merge branch 'jc/parse-options-boolean'
* jc/parse-options-boolean:
  apply: use OPT_NOOP_NOARG
  revert: use OPT_NOOP_NOARG
  parseopt: add OPT_NOOP_NOARG
  archive.c: use OPT_BOOL()
  parse-options: deprecate OPT_BOOLEAN

Conflicts:
	builtin/revert.c
2011-10-12 12:34:15 -07:00
Junio C Hamano
9f24152346 Merge branch 'rs/name-rev-usage'
* rs/name-rev-usage:
  name-rev: split usage string
2011-10-12 12:34:08 -07:00
Jim Meyering
2c93286ab2 fix "git apply --index ..." not to deref NULL
I noticed this when "git am CORRUPTED" unexpectedly failed with an
odd diagnostic, and even removed one of the files it was supposed
to have patched.

Reproduce with any valid old/new patch from which you have removed
the "+++ b/FILE" line.  You'll see a diagnostic like this

    fatal: unable to write file '(null)' mode 100644: Bad address

and you'll find that FILE has been removed.

The above is on glibc-based systems.  On other systems, rather than
getting "null", you may provoke a segfault as git tries to
dereference the NULL file name.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-12 12:08:11 -07:00
Junio C Hamano
9bd500048d Merge branch 'mh/check-ref-format-3'
* mh/check-ref-format-3: (23 commits)
  add_ref(): verify that the refname is formatted correctly
  resolve_ref(): expand documentation
  resolve_ref(): also treat a too-long SHA1 as invalid
  resolve_ref(): emit warnings for improperly-formatted references
  resolve_ref(): verify that the input refname has the right format
  remote: avoid passing NULL to read_ref()
  remote: use xstrdup() instead of strdup()
  resolve_ref(): do not follow incorrectly-formatted symbolic refs
  resolve_ref(): extract a function get_packed_ref()
  resolve_ref(): turn buffer into a proper string as soon as possible
  resolve_ref(): only follow a symlink that contains a valid, normalized refname
  resolve_ref(): use prefixcmp()
  resolve_ref(): explicitly fail if a symlink is not readable
  Change check_refname_format() to reject unnormalized refnames
  Inline function refname_format_print()
  Make collapse_slashes() allocate memory for its result
  Do not allow ".lock" at the end of any refname component
  Refactor check_refname_format()
  Change check_ref_format() to take a flags argument
  Change bad_ref_char() to return a boolean value
  ...
2011-10-10 15:56:18 -07:00
Junio C Hamano
034a8a0df3 Merge branch 'mz/remote-rename'
* mz/remote-rename:
  remote: only update remote-tracking branch if updating refspec
  remote rename: warn when refspec was not updated
  remote: "rename o foo" should not rename ref "origin/bar"
  remote: write correct fetch spec when renaming remote 'remote'
2011-10-10 15:56:17 -07:00
Junio C Hamano
ca3ef81ad7 Merge branch 'cb/common-prefix-unification'
* cb/common-prefix-unification:
  rename pathspec_prefix() to common_prefix() and move to dir.[ch]
  consolidate pathspec_prefix and common_prefix
  remove prefix argument from pathspec_prefix
2011-10-10 15:56:17 -07:00
Junio C Hamano
efc5fb6a77 Merge branch 'fg/submodule-git-file-git-dir'
* fg/submodule-git-file-git-dir:
  Move git-dir for submodules
  rev-parse: add option --resolve-git-dir <path>

Conflicts:
	cache.h
	git-submodule.sh
2011-10-10 15:56:17 -07:00
Matthieu Moy
008e3cc5d7 config: display key_delim for config --bool --get-regexp
The previous logic in show_config was to print the delimiter when the
value was set, but Boolean variables have an implicit value "true" when
they appear with no value in the config file. As a result, we got:

git_Config        --get-regexp '.*\.Boolean'	#1. Ok: example.boolean
git_Config --bool --get-regexp '.*\.Boolean'	#2. NO: example.booleantrue

Fix this by defering the display of the separator until after the value
to display has been computed.

Reported-by: Brian Foster <brian.foster@maxim-ic.com>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-10 12:34:44 -07:00
Ramsay Jones
27c0f76884 Fix some "variable might be used uninitialized" warnings
In particular, gcc complains as follows:

        CC tree-walk.o
    tree-walk.c: In function `traverse_trees':
    tree-walk.c:347: warning: 'e' might be used uninitialized in this \
        function

        CC builtin/revert.o
    builtin/revert.c: In function `verify_opt_mutually_compatible':
    builtin/revert.c:113: warning: 'opt2' might be used uninitialized in \
        this function

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-09 13:28:04 -07:00
Tay Ray Chuan
9516a598e3 fetch: plug two leaks on error exit in store_updated_refs
Close FETCH_HEAD and release the string url even if we have to leave the
function store_updated_refs() early.

Reported-by: Chris Wilson <cwilson@vigilantsw.com>
Helped-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-07 16:15:02 -07:00
Carlos Martín Nieto
5caf197337 fetch: free all the additional refspecs
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-07 16:02:19 -07:00
Junio C Hamano
278f7e6f6d Merge branch 'js/maint-no-cherry-pick-head-after-punted' into js/no-cherry-pick-head-after-punted
* js/maint-no-cherry-pick-head-after-punted:
  cherry-pick: do not give irrelevant advice when cherry-pick punted
  revert.c: defer writing CHERRY_PICK_HEAD till it is safe to do so

Conflicts:
	builtin/revert.c
2011-10-06 17:02:11 -07:00