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Author SHA1 Message Date
Junio C Hamano
6b48990354 Merge branch 'maint'
* maint:
  Update draft release notes for 1.5.4.4
  revert: actually check for a dirty index
  tests: introduce test_must_fail
  git-submodule: Fix typo 'url' which should be '$url'
  receive-pack: Initialize PATH to include exec-dir.

Conflicts:

	builtin-revert.c
2008-03-02 23:59:50 -08:00
Jeff King
0f2d4476c1 revert: actually check for a dirty index
The previous code mistakenly used wt_status_prepare to check whether the
index had anything commitable in it; however, that function is just an
init function, and will never report a dirty index.

The correct way with wt_status_* would be to call wt_status_print with the
output pointing to /dev/null or similar. However, that does extra work by
both examining the working tree and spewing status information to nowhere.

Instead, let's just implement the useful subset of wt_status_print as an
"is_index_dirty" function.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-02 23:33:59 -08:00
Jim Meyering
8e0f70033b Avoid unnecessary "if-before-free" tests.
This change removes all obvious useless if-before-free tests.
E.g., it replaces code like this:

        if (some_expression)
                free (some_expression);

with the now-equivalent:

        free (some_expression);

It is equivalent not just because POSIX has required free(NULL)
to work for a long time, but simply because it has worked for
so long that no reasonable porting target fails the test.
Here's some evidence from nearly 1.5 years ago:

    http://www.winehq.org/pipermail/wine-patches/2006-October/031544.html

FYI, the change below was prepared by running the following:

  git ls-files -z | xargs -0 \
  perl -0x3b -pi -e \
    's/\bif\s*\(\s*(\S+?)(?:\s*!=\s*NULL)?\s*\)\s+(free\s*\(\s*\1\s*\))/$2/s'

Note however, that it doesn't handle brace-enclosed blocks like
"if (x) { free (x); }".  But that's ok, since there were none like
that in git sources.

Beware: if you do use the above snippet, note that it can
produce syntactically invalid C code.  That happens when the
affected "if"-statement has a matching "else".
E.g., it would transform this

  if (x)
    free (x);
  else
    foo ();

into this:

  free (x);
  else
    foo ();

There were none of those here, either.

If you're interested in automating detection of the useless
tests, you might like the useless-if-before-free script in gnulib:
[it *does* detect brace-enclosed free statements, and has a --name=S
 option to make it detect free-like functions with different names]

  http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=blob;f=build-aux/useless-if-before-free

Addendum:
  Remove one more (in imap-send.c), spotted by Jean-Luc Herren <jlh@gmx.ch>.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-22 14:14:40 -08:00
Junio C Hamano
45525bd022 Make error messages from cherry-pick/revert more sensible
The original "rewrite in C" did somewhat a sloppy job while
stealing code from git-write-tree.

The caller pretends as if the write_tree() function would return
an error code and being able to issue a sensible error message
itself, but write_tree() function just calls die() and never
returns an error.  Worse yet, the function claims that it was
running git-write-tree (which is no longer true after
cherry-pick stole it).

Tested-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-05 00:39:19 -08:00
Brandon Casey
4ed7cd3ab0 Improve use of lockfile API
Remove remaining double close(2)'s.  i.e. close() before
commit_locked_index() or commit_lock_file().

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-16 15:35:35 -08:00
David Symonds
0d8135891e Mention that git-rm can be an appropriate resolution as well as git-add.
Especially when using git-cherry-pick, removing files that are unmerged can be
a logical action. This patch merely changes the informative text to be less
confusing.

Signed-off-by: David Symonds <dsymonds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-30 14:15:08 -08:00
Wincent Colaiuta
804c7174c9 revert/cherry-pick: Allow overriding the help text by the calling Porcelain
A Porcelain command that uses cherry-pick or revert may make a commit
out of resolved index itself, in which case telling the user to commit
the result is not appropriate at all.  This allows GIT_CHERRY_PICK_HELP
environment variable to be set by the calling Porcelain in order to
override the built-in help text.

[jc: this is heavily modified from the original but should be equivalent
 in spirit]

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-30 13:55:49 -08:00
Junio C Hamano
757f58ed38 revert/cherry-pick: do not mention the original ref
When you cherry-pick or revert a commit, naming it with an annotated
tag, we added a comment, attempting to repeat what we got from the end
user, to the message.

But this was inconsistent.  When we got "cherry-pick branch", we
recorded the object name (40-letter SHA-1) without saying anything like
"original was 'branch'".  There was no need to.  Also recent rewrite to
use parse-options made it impossible to parrot the original command line
without "unparsing".

This removes the code that implements the misguided "we dereferenced the
tag so record that in the commit message" behaviour.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-25 15:56:55 -08:00
Junio C Hamano
fb5fd01148 Merge branch 'maint'
* maint:
  git-clean: honor core.excludesfile
  Documentation: Fix man page breakage with DocBook XSL v1.72
  git-remote.txt: fix typo
  core-tutorial.txt: Fix argument mistake in an example.
  replace reference to git-rm with git-reset in git-commit doc
  Grammar fixes for gitattributes documentation
  Don't allow fast-import tree delta chains to exceed maximum depth
  revert/cherry-pick: allow starting from dirty work tree.
  t/t3404: fix test for a bogus todo file.

Conflicts:

	fast-import.c
2007-11-14 03:37:18 -08:00
Junio C Hamano
71aa2b8f0e Resurrect git-revert.sh example and add comment to builtin-revert.c
I had to scratch my head for quite some time figuring out why we
cannot optimize out write_tree() we do when --no-commit option
is given, whose purpose seem to be only to check if the index is
unmerged, with a simple loop over the active_cache[].

So add a comment to describe why the write_tree() is there, and
resurrect the last scripted version as a reference material in
contrib/example directory with others.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-13 13:45:11 -08:00
Junio C Hamano
245de36f03 revert/cherry-pick: allow starting from dirty work tree.
There is no reason to forbid a dirty work tree when reverting or
cherry-picking a change, as long as the index is clean.

The scripted version used to allow it:

    case "$no_commit" in
    t)
    	# We do not intend to commit immediately.  We just want to
    	# merge the differences in.
    	head=$(git-write-tree) ||
    		die "Your index file is unmerged."
    	;;
    *)
    	head=$(git-rev-parse --verify HEAD) ||
    		die "You do not have a valid HEAD"
    	files=$(git-diff-index --cached --name-only $head) || exit
    	if [ "$files" ]; then
    		die "Dirty index: cannot $me (dirty: $files)"
    	fi
    	;;
    esac

but C rewrite tightened the check, probably by mistake.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-13 13:25:51 -08:00
Junio C Hamano
02273fdbd0 Merge branch 'jc/revert-merge'
* jc/revert-merge:
  cherry-pick/revert -m: add tests
  revert/cherry-pick: work on merge commits as well

Conflicts:

	builtin-revert.c
2007-11-04 01:26:02 -07:00
Junio C Hamano
3d66dc9657 Merge branch 'ph/parseopt'
* ph/parseopt: (24 commits)
  gc: use parse_options
  Fixed a command line option type for builtin-fsck.c
  Make builtin-pack-refs.c use parse_options.
  Make builtin-name-rev.c use parse_options.
  Make builtin-count-objects.c use parse_options.
  Make builtin-fsck.c use parse_options.
  Update manpages to reflect new short and long option aliases
  Make builtin-for-each-ref.c use parse-opts.
  Make builtin-symbolic-ref.c use parse_options.
  Make builtin-update-ref.c use parse_options
  Make builtin-revert.c use parse_options.
  Make builtin-describe.c use parse_options
  Make builtin-branch.c use parse_options.
  Make builtin-mv.c use parse-options
  Make builtin-rm.c use parse_options.
  Port builtin-add.c to use the new option parser.
  parse-options: allow callbacks to take no arguments at all.
  parse-options: Allow abbreviated options when unambiguous
  Add shortcuts for very often used options.
  parse-options: make some arguments optional, add callbacks.
  ...

Conflicts:

	Makefile
	builtin-add.c
2007-11-02 16:42:23 -07:00
Junio C Hamano
9c51414f8e Merge branch 'maint' into HEAD
* maint:
  Update GIT 1.5.3.5 Release Notes
  git-rebase--interactive.sh: Make 3-way merge strategies work for -p.
  git-rebase--interactive.sh: Don't pass a strategy to git-cherry-pick.
  Fix --strategy parsing in git-rebase--interactive.sh
  Make merge-recursive honor diff.renamelimit
  cherry-pick/revert: more compact user direction message
  core-tutorial: Use new syntax for git-merge.
  git-merge: document but discourage the historical syntax
  Prevent send-pack from segfaulting (backport from 'master')
  Documentation/git-cvsexportcommit.txt: s/mgs/msg/ in example

Conflicts:

	git-rebase--interactive.sh
2007-10-30 21:44:43 -07:00
Nicolas Pitre
04bd8e5fea cherry-pick/revert: more compact user direction message
A failed cherry-pick (and friend) currently says:

|Automatic cherry-pick failed.  After resolving the conflicts,
|mark the corrected paths with 'git-add <paths>'
|and commit the result.

This can obviously be displayed on two lines only.
While at it, change "git-add" to "git add".

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-10-30 16:49:27 -07:00
Pierre Habouzit
f81037947c Make builtin-revert.c use parse_options.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-29 21:03:31 -07:00
Junio C Hamano
7791ecbc62 revert/cherry-pick: work on merge commits as well
Usually you cannot revert a merge because you do not know which
side of the merge should be considered the mainline (iow, what
change to reverse).

With this patch, cherry-pick and revert learn -m (--mainline)
option that lets you specify the parent number (starting from 1)
of the mainline, so that you can:

	git revert -m 1 $merge

to reverse the changes introduced by the $merge commit relative
to its first parent, and:

	git cherry-pick -m 2 $merge

to replay the changes introduced by the $merge commit relative
to its second parent.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-10-26 23:28:28 -07:00
Pierre Habouzit
182af8343c Use xmemdupz() in many places.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-18 17:42:17 -07:00
Junio C Hamano
4175e9e3a8 More static
There still are quite a few symbols that ought to be static.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-13 02:02:10 -07:00
Pierre Habouzit
52fae7de4e Missing statics.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-08 02:37:19 -07:00
Junio C Hamano
32309f54ed Fix command line parameter parser of revert/cherry-pick
The parser was inconsistently done, in that it did not look at
the last command line parameter to see if it could be an unknown
option, although it was designed to notice unknown options if
they were given in positions the command expects to find them
(i.e. everything except the last parameter, which ought to be
<commit-ish>).  This prevented a very natural invocation

	$ git cherry-pick --usage

from issuing the usage help.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-23 00:17:51 -07:00
Shawn O. Pearce
1dcb3b6478 Correct error message in revert/cherry-pick
We now write to MERGE_MSG, not .msg.  I missed this earlier
when I changed the target we write to.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-10 15:21:50 -07:00
Shawn O. Pearce
abda522777 Use .git/MERGE_MSG in cherry-pick/revert
Rather than storing the temporary commit message data in .msg (in
the working tree) we now store the message data in .git/MERGE_MSG.

By storing the message in the .git/ directory we are sure we will
never have a collision with a user file, should a project actually
have a ".msg" file in their top level tree.  We also don't need to
worry about leaving this stale file behind during a `reset --hard`
and have it show up in the output of status.

We are using .git/MERGE_MSG here to store the temporary message as
it is an already established convention between git-merge, git-am
and git-rebase that git-commit will default the user's edit buffer
to the contents of .git/MERGE_MSG.  If the user is going to need
to resolve this commit or wants to edit the message on their own
prepping that file with the desired message "just works".

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-08 22:47:09 -07:00
Johannes Schindelin
e43b010582 git-revert: Revert revert message to old behaviour
When converting from the shell script, based on a misreading of the
sed invocation, the builtin included the abbreviated commit name,
and did _not_ include the quotes around the oneline message.

This fixes it.

[jc: with a fix for the typo/thinko spotted by Linus, and also
 removing the unwanted abbrev at the beginning.]

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-24 02:50:22 -07:00
Shawn O. Pearce
1a8f27413b Correct new compiler warnings in builtin-revert
The new builtin-revert code introduces a few new compiler errors
when I'm building with my stricter set of checks enabled in CFLAGS.
These all just stem from trying to store a constant string into
a non-const char*.  Simple fix, make the variables const char*.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-12 23:40:18 -07:00
Shawn O. Pearce
497bdc88d6 Switch to run_command_v_opt in revert
Another change by me is removing the va_list variants of run_command,
one of which is used by builtin-revert.c.  To avoid compile errors
I'm refactoring builtin-revert to use the char** variant instead,
as that variant is staying.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-11 22:49:25 -07:00
Shawn O. Pearce
0e6240447c cherry-pick: Bug fix 'cherry picked from' message.
Somewhere along the line (in abd6970a) git-revert.sh learned to
omit the private object name from the new commit message *unless*
-x was supplied on the command line by the user.

The way this was implemented is really non-obvious in the original
script.  Setting replay=t (the default) means we don't include the
the private object name, while setting reply='' (the -x flag) means
we should include the private object name.  These two settings now
relate to the replay=1 and replay=0 cases in the C version, so we
need to negate replay to test it is 0.

I also noticed the C version was adding an extra LF in the -x case,
where the older git-revert.sh was not.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-05 21:55:31 -08:00
Johannes Schindelin
f52463a582 cherry-pick: Suggest a better method to retain authorship
When a cherry-pick failed, we used to recommend setting environment
variables to retain the authorship. It is much easier, though, to use
the "-c" flag of git-commit.

Print this message also when merge-recursive fails (the code used to
exit(1) in that case, never reaching the proper failure path).

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-04 13:15:09 -08:00
Johannes Schindelin
9509af686b Make git-revert & git-cherry-pick a builtin
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-03 22:59:34 -08:00