Commit Graph

21710 Commits

Author SHA1 Message Date
Jonathan Nieder
225f78c817 Merge branch 'master' of git://repo.or.cz/alt-git into jn/autodep
* 'master' of git://repo.or.cz/alt-git: (384 commits)
  am: fix patch format detection for Thunderbird "Save As" emails
  t0022: replace non-portable literal CR
  tests: consolidate CR removal/addition functions
  commit-tree: remove unused #define
  t5541-http-push: make grep expression check for one line only
  rebase: replace antiquated sed invocation
  Add test-run-command to .gitignore
  git_connect: use use_shell instead of explicit "sh", "-c"
  gitweb.js: Workaround for IE8 bug
  Make test numbers unique
  Windows: Remove dependency on pthreadGC2.dll
  Documentation: move away misplaced 'push --upstream' description
  Documentation: add missing :: in config.txt
  pull: re-fix command line generation
  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
  ...

Conflicts:
	Makefile
2010-01-26 10:08:44 -06:00
Jonathan Nieder
3e6577b45e Makefile: drop dependency on $(wildcard */*.h)
The files this pulls in are already pulled in by other dependency
rules (some recently added).

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2010-01-26 10:07:34 -06:00
Jonathan Nieder
066ddda6cd Makefile: clean up http-walker.o dependency rules
http-walker.o depends on http.h twice: once in the rule listing
files that use http.h, and again in the rule explaining how to
build it.  Messy.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2010-01-26 10:07:34 -06:00
Jonathan Nieder
7a1894e303 Makefile: remove wt-status.h from LIB_H
A list of the few translation units using this header is
half-populated already.  Including the dependency on this header
twice (once explicitly, once through LIB_H) makes it difficult to
figure out where future headers should be added to the Makefile.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2010-01-26 10:07:34 -06:00
Jonathan Nieder
daa99a9172 Makefile: make sure test helpers are rebuilt when headers change
It is not worth the bother to maintain an up-to-date list of
which headers each test helper uses, so depend on $(LIB_H) to
catch them all.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2010-01-26 10:07:34 -06:00
Jonathan Nieder
21528abc36 Makefile: add missing header file dependencies
LIB_H is missing exec_cmd.h and color.h.  cache.h includes
SHA1_HEADER, and thus so does almost everything else, so add that
to LIB_H, too.  xdiff-interface.h is not included by any header
files, but so many source files use xdiff that it is simplest to
include it in LIB_H, too.

xdiff-interface.o uses the xdiff library heavily; let it depend
on all xdiff headers to avoid needing to keep track of which
headers it uses.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2010-01-26 10:07:33 -06:00
Junio C Hamano
80235ba79e "log --author=me --grep=it" should find intersection, not union
Historically, any grep filter in "git log" family of commands were taken
as restricting to commits with any of the words in the commit log message.
However, the user almost always want to find commits "done by this person
on that topic".  With "--all-match" option, a series of grep patterns can
be turned into a requirement that all of them must produce a match, but
that makes it impossible to ask for "done by me, on either this or that"
with:

	log --author=me --committer=him --grep=this --grep=that

because it will require both "this" and "that" to appear.

Change the "header" parser of grep library to treat the headers specially,
and parse it as:

	(all-match-OR (HEADER-AUTHOR me)
		      (HEADER-COMMITTER him)
		      (OR
		      	(PATTERN this)
			(PATTERN that) ) )

Even though the "log" command line parser doesn't give direct access to
the extended grep syntax to group terms with parentheses, this change will
cover the majority of the case the users would want.

This incidentally revealed that one test in t7002 was bogus.  It ran:

	log --author=Thor --grep=Thu --format='%s'

and expected (wrongly) "Thu" to match "Thursday" in the author/committer
date, but that would never match, as the timestamp in raw commit buffer
does not have the name of the day-of-the-week.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-25 19:28:13 -08:00
Stephen Boyd
e3f67d30b2 am: fix patch format detection for Thunderbird "Save As" emails
The patch detection wants to inspect all the headers of a rfc2822 message
and ensure that they look like header fields. The headers are always
separated from the message body with a blank line. When Thunderbird saves
the message the blank line separating the headers from the body includes a
CR. The patch detection is failing because a CRLF doesn't match /^$/. Fix
this by allowing a CR to exist on the separating line.

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-25 16:43:36 -08:00
Stephen Boyd
f4e6dcc36c t0022: replace non-portable literal CR
We shouldn't have literal CR's in tests as they aren't portable.

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-25 16:43:28 -08:00
Stephen Boyd
c4f3f551a6 tests: consolidate CR removal/addition functions
append_cr(), remove_cr(), q_to_nul() and q_to_cr() are defined in multiple
tests. Consolidate them into test-lib.sh so we can stop redefining them.
The use of remove_cr() in t0020 to test for a CR is replaced with a new
function has_cr() to accurately reflect what is intended (the output of
remove_cr() was being thrown away).

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-25 16:42:23 -08:00
Junio C Hamano
c8610a2e7e grep: expose "status-only" feature via -q
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>
2010-01-25 15:42:55 -08:00
Stephen Boyd
2d7f98bac7 commit-tree: remove unused #define
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-25 09:53:12 -08:00
Tay Ray Chuan
9567f082dd t5541-http-push: make grep expression check for one line only
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>
2010-01-25 09:53:02 -08:00
Stephen Boyd
0aa958d4b4 rebase: replace antiquated sed invocation
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>
2010-01-25 09:43:45 -08:00
Alejandro Riveira Fernández
6fce51571c Add test-run-command to .gitignore
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>
2010-01-25 09:42:31 -08:00
Johannes Sixt
4cfb2a44bb git_connect: use use_shell instead of explicit "sh", "-c"
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>
2010-01-25 09:37:18 -08:00
Shawn O. Pearce
73b3446b82 git-gui: Remove unused icon file_parttick
This icon hasn't been used in git gui.  I think it dates back to
the original set of icons I took from Paul Mackerras' prototype
that I turned into git gui.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2010-01-25 07:33:41 -08:00
Peter Oberndorfer
0602de48f7 git-gui: use different icon for new and modified files in the index
This allows to quickly differentiate between new and modified files
in the index without selecting the file and looking at the diff.

Signed-off-by: Peter Oberndorfer <kumbayo84@arcor.de>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2010-01-25 07:31:38 -08:00
Jens Lehmann
721ceec1ad Teach diff --submodule that modified submodule directory is dirty
Since commit 8e08b4 git diff does append "-dirty" to the work tree side
if the working directory of a submodule contains new or modified files.
Lets do the same when the --submodule option is used.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-24 21:04:31 -08:00
Jens Lehmann
4d34477f4c git diff: Don't test submodule dirtiness with --ignore-submodules
The diff family suppresses the output of submodule changes when
requested but checks them nonetheless. But since recently submodules
get examined for their dirtiness, which is rather expensive. There is
no need to do that when the --ignore-submodules option is used, as
the gathered information is never used anyway.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-24 21:03:23 -08:00
Jakub Narebski
b2c2e4c22c gitweb.js: Workaround for IE8 bug
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>
2010-01-24 17:48:08 -08:00
Christian Couder
ffbc5dc2d0 reset: add test cases for "--keep" option
This shows that with the "--keep" option, changes that are both in
the work tree and the index are kept in the work tree after the
reset (but discarded in the index).

In the case of unmerged entries, we can see that "git reset --keep"
works only when the target state is the same as HEAD. And then the
work tree is not reset.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-24 17:46:41 -08:00
Christian Couder
9bc454df08 reset: add option "--keep" to "git reset"
The purpose of this new option is to discard some of the
last commits but to keep current changes in the work tree.

The use case is when you work on something and commit
that work. And then you work on something else that touches
other files, but you don't commit it yet. Then you realize
that what you commited when you worked on the first thing
is not good or belongs to another branch.

So you want to get rid of the previous commits (at least in
the current branch) but you want to make sure that you keep
the changes you have in the work tree. And you are pretty
sure that your changes are independent from what you
previously commited, so you don't want the reset to succeed
if the previous commits changed a file that you also
changed in your work tree.

The table below shows what happens when running
"git reset --keep target" to reset the HEAD to another
commit (as a special case "target" could be the same as
HEAD).

working index HEAD target         working index HEAD
----------------------------------------------------
  A      B     C     D   --keep    (disallowed)
  A      B     C     C   --keep     A      C     C
  B      B     C     D   --keep    (disallowed)
  B      B     C     C   --keep     B      C     C

In this table, A, B and C are some different states of
a file. For example the last line of the table means
that if a file is in state B in the working tree and
the index, and in a different state C in HEAD and in
the target, then "git reset --keep target" will put
the file in state B in the working tree, and in state
C in the index and in HEAD.

The following table shows what happens on unmerged entries:

working index HEAD target         working index HEAD
----------------------------------------------------
 X       U     A    B     --keep  (disallowed)
 X       U     A    A     --keep   X       A     A

In this table X can be any state and U means an unmerged
entry.

Though the error message when "reset --keep" is disallowed
on unmerged entries is something like:

error: Entry 'file1' would be overwritten by merge. Cannot merge.
fatal: Could not reset index file to revision 'HEAD^'.

which is not very nice.

A following patch will add some test cases for "--keep".

The "--keep" option is implemented by doing a 2 way merge
between HEAD and the reset target, and if this succeeds
by doing a mixed reset to the target.

The code comes from the sequencer GSoC project, where
such an option was developed by Stephan Beyer:

git://repo.or.cz/git/sbeyer.git

(at commit 5a78908b70ceb5a4ea9fd4b82f07ceba1f019079)

But in the sequencer project the "reset" flag was set
in the "struct unpack_trees_options" passed to
"unpack_trees()". With this flag the changes in the
working tree were discarded if the file was different
between HEAD and the reset target.

Mentored-by: Daniel Barkalow <barkalow@iabervon.org>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-24 17:46:41 -08:00
Junio C Hamano
026680f881 Merge branch 'jc/fix-tree-walk'
* 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
2010-01-24 17:35:58 -08:00
Johannes Sixt
eca9388f39 Make test numbers unique
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-24 14:53:24 -08:00
Junio C Hamano
01ddb1ff41 Merge branch 'maint'
* 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
2010-01-24 11:18:05 -08:00
Junio C Hamano
b30ccd7573 Merge branch 'maint' of git://git.spearce.org/git-gui into maint
* '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
2010-01-24 11:16:26 -08:00
Michael Lukashov
767f8b31cb Windows: Remove dependency on pthreadGC2.dll
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>
2010-01-24 11:13:48 -08:00
Thomas Rast
0ed3a11163 Documentation: move away misplaced 'push --upstream' description
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>
2010-01-24 11:01:45 -08:00
Thomas Rast
88955ed247 Documentation: add missing :: in config.txt
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>
2010-01-24 11:01:01 -08:00
Junio C Hamano
77b3b7969d Merge branch 'doc-style/for-next' of git://repo.or.cz/git/trast
* '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
2010-01-24 10:58:57 -08:00
Junio C Hamano
7ecee3314f pull: re-fix command line generation
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>
2010-01-24 10:11:27 -08:00
Jonathan Nieder
3588cf9481 Documentation: merge: use MERGE_HEAD to refer to the remote branch
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>
2010-01-24 13:57:59 +01:00
Jonathan Nieder
ebef7e5049 Documentation: simplify How Merge Works
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>
2010-01-24 13:57:42 +01:00
Jonathan Nieder
29280311f0 Documentation: merge: add a section about fast-forward
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>
2010-01-24 13:57:42 +01:00
Jonathan Nieder
30f2bade84 Documentation: emphasize when git merge terminates early
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>
2010-01-24 13:57:42 +01:00
Jonathan Nieder
b40bb374a6 Documentation: merge: add an overview
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>
2010-01-24 13:57:42 +01:00
Jonathan Nieder
a4081bacfc Documentation: merge: move merge strategy list to end
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>
2010-01-24 13:57:42 +01:00
Jonathan Nieder
ed4a6baad0 Documentation: suggest reset --merge in How Merge Works section
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>
2010-01-24 13:57:42 +01:00
Jonathan Nieder
35e9d6303c Documentation: merge: move configuration section to end
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>
2010-01-24 13:57:42 +01:00
Junio C Hamano
125fd98434 Make ce_uptodate() trustworthy again
The rule has always been that a cache entry that is ce_uptodate(ce)
means that we already have checked the work tree entity and we know
there is no change in the work tree compared to the index, and nobody
should have to double check.  Note that false ce_uptodate(ce) does not
mean it is known to be dirty---it only means we don't know if it is
clean.

There are a few codepaths (refresh-index and preload-index are among
them) that mark a cache entry as up-to-date based solely on the return
value from ie_match_stat(); this function uses lstat() to see if the
work tree entity has been touched, and for a submodule entry, if its
HEAD points at the same commit as the commit recorded in the index of
the superproject (a submodule that is not even cloned is considered
clean).

A submodule is no longer considered unmodified merely because its HEAD
matches the index of the superproject these days, in order to prevent
people from forgetting to commit in the submodule and updating the
superproject index with the new submodule commit, before commiting the
state in the superproject.  However, the patch to do so didn't update
the codepath that marks cache entries up-to-date based on the updated
definition and instead worked it around by saying "we don't trust the
return value of ce_uptodate() for submodules."

This makes ce_uptodate() trustworthy again by not marking submodule
entries up-to-date.

The next step _could_ be to introduce a few "in-core" flag bits to
cache_entry structure to record "this entry is _known_ to be dirty",
call is_submodule_modified() from ie_match_stat(), and use these new
bits to avoid running this rather expensive check more than once, but
that can be a separate patch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-24 00:15:29 -08:00
Junio C Hamano
76c9c0db3d rebase -i: Export GIT_AUTHOR_* variables explicitly
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>
2010-01-23 21:39:11 -08:00
Giuseppe Bilotta
a9fa11fe5b git-gui: set GIT_DIR and GIT_WORK_TREE after setup
Rather than juggling with the env var GIT_DIR around the invocation of
gitk, set it and GIT_WORK_TREE after finishing setup, ensuring that any
external tool works with the setup we're running with.

This also allows us to remove a couple of conditionals when running gitk
or git gui in a submodule, as we know that the variables are present and
have to be unset and reset before and after the invocation.

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2010-01-23 16:02:16 -08:00
Giuseppe Bilotta
3748b03d92 git-gui: update shortcut tools to use _gitworktree
Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2010-01-23 15:15:55 -08:00
Giuseppe Bilotta
29e5573d1e git-gui: handle bare repos correctly
Refactor checking for a bare repository into its own proc, that relies
on git rev-parse --is-bare-repository if possible. For older versions of
git we fall back to a logic such that the repository is considered bare
if:
 * either the core.bare setting is true
 * or the worktree is not set and the directory name ends with .git
The error message for the case of an unhandled bare repository is also
updated to reflect the fact that the problem is not the funny name but
the bareness.

The new refactored proc is also used to disable the menu entry to
explore the working copy, and to skip changing to the worktree before
the gitk invocation.

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2010-01-23 15:14:21 -08:00
Giuseppe Bilotta
21985a1136 git-gui: handle non-standard worktree locations
Don't rely on the git worktree being the updir of the gitdir, since it
might not be. Instead, define (and use) a new _gitworktree global
variable, setting it to $GIT_WORK_TREE if present, falling back to
core.worktree if defined, and finally to whatever we guess the correct
worktree is. Getting core.worktree requires the config from the alleged
git dir _gitdir to be loaded early.

Supporting non-standard worktree locations also breaks the git-gui
assumption (made when calling gitk) that the worktree was the dirname of
$_gitdir and that, by consequence, the git dir could be set to the tail
of $_gitdir once we changed to the worktree root directory. Therefore,
we need to export a GIT_DIR environment variable set to the full,
normalized path of $_gitdir instead. We also skip changing to the worktree
directory if it's empty (i.e. if we're working on a bare repository).

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2010-01-23 15:14:21 -08:00
Jeff Epler
ff07c3b621 git-gui: Support applying a range of changes at once
Multiple lines can be selected in the diff viewer and applied all
at once, rather than selecting "Stage Line For Commit" on each
individual line.

Signed-off-by: Jeff Epler <jepler@unpythonic.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2010-01-23 15:14:15 -08:00
Jens Lehmann
25476c63e7 git-gui: Add a special diff popup menu for submodules
To make it easier for users to deal with submodules, a special diff
popup menu has been added for submodules. The "Show Less Context"
and "Show More Context" entries have been removed, as they don't make
any sense for a submodule summary. Four new entries are added to the
top of the popup menu to gain access to more detailed information
about the changes in a submodule than the plain summary does offer.

These are:
- "Visualize These Changes In The Submodule"
  starts gitk showing the selected commit range

- "Visualize These Changes In The Submodule"
  starts gitk showing the whole submodule history of the current branch

- "Visualize All Branch History In The Submodule"
  starts gitk --all in the submodule

- "Start git gui In The Submodule"
  guess what :-)

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2010-01-23 15:14:15 -08:00
Jens Lehmann
a9ae14a1c5 git-gui: Use git diff --submodule when available
Doing so is much faster and gives the same output.
Here are some numbers:

  $ time git submodule summary
  real	0m0.219s
  user	0m0.050s
  sys	0m0.111s

  $ time git diff --submodule
  real	0m0.012s
  user	0m0.003s
  sys	0m0.009s

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2010-01-23 15:14:15 -08:00
Giuseppe Bilotta
87cd09f43e git-gui: work from the .git dir
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>
2010-01-23 15:14:04 -08:00