1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-11-05 16:52:59 +01:00
Commit graph

3636 commits

Author SHA1 Message Date
Shawn O. Pearce
750ef42516 http-fetch: Use temporary files for pack-*.idx until verified
Verify that a downloaded pack-*.idx file is consistent and valid
as an index file before we rename it into its final destination.
This prevents a corrupt index file from later being treated as a
usable file, confusing readers.

Check that we do not have the pack index file before invoking
fetch_pack_index(); that way, we can do without the has_pack_index()
check in fetch_pack_index().

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-19 17:56:29 -07:00
Shawn O. Pearce
fe72d420ab http-fetch: Use index-pack rather than verify-pack to check packs
To ensure we don't leave a corrupt pack file positioned as though
it were a valid pack file, run index-pack on the temporary pack
before we rename it to its final name.  If index-pack crashes out
when it discovers file corruption (e.g. GitHub's error HTML at the
end of the file), simply delete the temporary files to cleanup.

By waiting until the pack has been validated before we move it
to its final name, we eliminate a race condition where another
concurrent reader might try to access the pack at the same time
that we are still trying to verify its not corrupt.

Switching from verify-pack to index-pack is a change in behavior,
but it should turn out better for users.  The index-pack algorithm
tries to minimize disk seeks, as well as the number of times any
given object is inflated, by organizing its work along delta chains.
The verify-pack logic does not attempt to do this, thrashing the
delta base cache and the filesystem cache.

By recreating the index file locally, we also can automatically
upgrade from a v1 pack table of contents to v2.  This makes the
CRC32 data available for use during later repacks, even if the
server didn't have them on hand.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Acked-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-19 17:56:20 -07:00
Shawn O. Pearce
d761b2ac0e t5550-http-fetch: Use subshell for repository operations
Change into the server repository's directory using a subshell,
so we can return back to the top of the trash directory before
doing anything more in the test script.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-17 13:55:45 -07:00
Junio C Hamano
408dee5222 Merge branch 'ef/maint-empty-commit-log' into maint
* ef/maint-empty-commit-log:
  rev-list: fix --pretty=oneline with empty message
2010-04-09 22:38:53 -07:00
Junio C Hamano
daaf2e8892 Merge branch 'jc/conflict-marker-size' into maint
* jc/conflict-marker-size:
  diff --check: honor conflict-marker-size attribute
2010-04-09 22:38:34 -07:00
Junio C Hamano
970957dbad Merge branch 'jc/maint-refs-dangling' into maint
* jc/maint-refs-dangling:
  refs: ref entry with NULL sha1 is can be a dangling symref
2010-03-31 15:09:32 -07:00
Kevin Ballard
657ab61efa format-patch: Squelch 'fatal: Not a range." error
Don't output an error on `git format-patch --ignore-if-in-upstream HEAD`.
This matches the behavior of `git format-patch HEAD`.

Signed-off-by: Kevin Ballard <kevin@sb.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-29 21:22:37 -07:00
Junio C Hamano
cc64c6970a Merge branch 'cp/add-u-pathspec' into maint
* cp/add-u-pathspec:
  test for add with non-existent pathspec
  git add -u: die on unmatched pathspec
2010-03-28 21:21:42 -07:00
Junio C Hamano
4c367c6ae9 t9350: fix careless use of "cd"
Upon failure of any of these tests (or when a test that is marked as
expecting a failure is fixed), we will end up running later tests in
random places.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-28 17:42:11 -07:00
David Aguilar
42accaec01 difftool: Fix '--gui' when diff.guitool is unconfigured
When diff.guitool is unconfigured and "--gui" is specified
git-difftool dies with the following error message:

	config diff.guitool: command returned error: 1

Catch the error so that the "--gui" flag is a no-op when
diff.guitool is unconfigured.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-28 09:29:12 -07:00
Junio C Hamano
a757c646ee diff --check: honor conflict-marker-size attribute
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-24 19:35:34 -07:00
Junio C Hamano
0476228de5 Merge branch 'jc/color-attrs' into maint
* jc/color-attrs:
  color: allow multiple attributes
2010-03-24 16:24:13 -07:00
Junio C Hamano
bcbbe4f9d9 Merge branch 'jk/maint-add-ignored-dir' into maint
* jk/maint-add-ignored-dir:
  tests for "git add ignored-dir/file" without -f
  dir: fix COLLECT_IGNORED on excluded prefixes
  t0050: mark non-working test as such
2010-03-24 16:24:03 -07:00
Junio C Hamano
7b676b1bb5 Merge branch 'bg/apply-fix-blank-at-eof' into maint
* bg/apply-fix-blank-at-eof:
  t3417: Add test cases for "rebase --whitespace=fix"
  t4124: Add additional tests of --whitespace=fix
  apply: Allow blank context lines to match beyond EOF
  apply: Remove the quick rejection test
  apply: Don't unnecessarily update line lengths in the preimage
2010-03-24 16:23:50 -07:00
Erik Faye-Lund
1fb5fdd25f rev-list: fix --pretty=oneline with empty message
55246aa (Dont use "<unknown>" for placeholders and suppress printing
of empty user formats) introduced a check to prevent empty
user-formats from being printed. This test didn't take empty commit
messages into account, and prevented the line-termination from being
output. This lead to multiple commits on a single line.

Correct it by guarding the check with a check for user-format. A
similar correction for the --graph code-path has been included.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-21 11:44:27 -07:00
Junio C Hamano
e01de1c912 refs: ref entry with NULL sha1 is can be a dangling symref
Brandon Casey noticed that t5505 had accidentally broken its && chain,
hiding inconsistency between the code that writes the warning to the
standard output and the test that expects to see the warning on the
standard error, which was introduced by f8948e2 (remote prune: warn
dangling symrefs, 2009-02-08).

It turns out that the issue is deeper than that.  After f8948e2, a symref
that is dangling is marked with a NULL sha1, and the idea of using NULL
sha1 to mean a deleted ref was scrapped, but somehow a follow-up eafb452
(do_one_ref(): null_sha1 check is not about broken ref, 2009-07-22)
incorrectly reorganized do_one_ref(), still thinking NULL sha1 is never
used in the code.

Fix this by:

 - adopt Brandon's fix to t5505 test;

 - introduce REF_BROKEN flag to mark a ref that fails to resolve (dangling
   symref);

 - move the check for broken ref back inside the "if we are skipping
   dangling refs" code block.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-15 23:37:42 -07:00
Junio C Hamano
b75aea8f5b tests for "git add ignored-dir/file" without -f
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-13 23:23:22 -08:00
Junio C Hamano
0d7c2430ab t0050: mark non-working test as such
The test is to prepare an empty file "camelcase" in the index, remove
and replace it with another file "CamelCase" with "1" as its contents
in the working tree, and add it to the index, in a repository configured
to be case insensitive.

However, the test actually checked ls-files knows about a pathname that
matches "camelcase" case insensitively.  It didn't check if the added
contents actually was the updated one.

Mark the test as non-working.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-13 23:22:50 -08:00
Dave Olszewski
8fcaca3ff2 don't use default revision if a rev was specified
If a revision is specified, it happens not to have any commits, don't
use the default revision.  By doing so, surprising and undesired
behavior can happen, such as showing the reflog for HEAD when a branch
was specified.

[jc: squashed a test from René]

Signed-off-by: Dave Olszewski <cxreg@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-13 21:23:43 -08:00
Junio C Hamano
34b383e7cd t/Makefile: remove test artifacts upon "make clean"
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-13 12:41:20 -08:00
René Scharfe
00fb3d214c blame: fix indent of line numbers
Correct the calculation of the number of digits for line counts of the
form 10^n-1 (9, 99, ...) in lineno_width().  This makes blame stop
printing an extra space before the line numbers of files with that many
total lines.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-13 12:04:17 -08:00
Junio C Hamano
4a2284b999 t9400: Use test_cmp when appropriate
Consistently using test_cmp would make debugging test scripts far easier,
as output from them run under "-v" option becomes readable.

Besides, some platforms' "diff" implementations lack "-q" option.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-11 21:40:33 -08:00
Junio C Hamano
030bc0aa8b Merge branch 'as/maint-expire' into maint
* as/maint-expire:
  reflog: honor gc.reflogexpire=never
  prune: honor --expire=never
2010-03-08 00:36:01 -08:00
Junio C Hamano
2dd96ea21f Merge branch 'jc/fetch-param' into maint
* jc/fetch-param:
  fetch --all/--multiple: keep all the fetched branch information
  builtin-fetch --all/--multi: propagate options correctly
  t5521: fix and modernize
2010-03-08 00:36:00 -08:00
Junio C Hamano
919451330b Merge branch 'jk/maint-add--interactive-delete' into maint
* jk/maint-add--interactive-delete:
  add-interactive: fix bogus diff header line ordering
2010-03-08 00:36:00 -08:00
Junio C Hamano
493e433277 Merge branch 'mm/mkstemps-mode-for-packfiles' into maint
* mm/mkstemps-mode-for-packfiles:
  Use git_mkstemp_mode instead of plain mkstemp to create object files
  git_mkstemps_mode: don't set errno to EINVAL on exit.
  Use git_mkstemp_mode and xmkstemp_mode in odb_mkstemp, not chmod later.
  git_mkstemp_mode, xmkstemp_mode: variants of gitmkstemps with mode argument.
  Move gitmkstemps to path.c
  Add a testcase for ACL with restrictive umask.
2010-03-08 00:36:00 -08:00
Junio C Hamano
6ae611fa8d Merge branch 'jc/maint-fix-mailinfo-strip' into maint
* jc/maint-fix-mailinfo-strip:
  mailinfo: do not strip leading spaces even for a header line
2010-03-08 00:35:59 -08:00
Junio C Hamano
1f54d693fd Merge branch 'jc/grep-author-all-match-implicit' into maint
* jc/grep-author-all-match-implicit:
  "log --author=me --grep=it" should find intersection, not union
2010-03-08 00:35:59 -08:00
Junio C Hamano
89cd4aa862 Merge branch 'jc/checkout-detached' into maint
* jc/checkout-detached:
  Reword "detached HEAD" notification
2010-03-08 00:35:59 -08:00
Junio C Hamano
8b124135a9 color: allow multiple attributes
In configuration files (and "git config --color" command line), we
supported one and only one attribute after foreground and background
color.  Accept combinations of attributes, e.g.

    [diff.color]
            old = red reverse bold

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-07 12:00:36 -08:00
Bert Wesarg
5565f47c40 unset GREP_OPTIONS in test-lib.sh
I used to set GREP_OPTIONS to exclude *.orig and *.rej files. But with this
the test t4252-am-options.sh fails because it calls grep with a .rej file:

    grep "@@ -1,3 +1,3 @@" file-2.rej

Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-07 11:05:18 -08:00
Björn Gustavsson
59f5ced65b t3417: Add test cases for "rebase --whitespace=fix"
The command "git rebase --whitespace=fix HEAD~<N>" is supposed to
only clean up trailing whitespace, and the expectation is that it
cannot fail.

Unfortunately, if one commit adds a blank line at the end of a file
and a subsequent commit adds more non-blank lines after the blank
line, "git apply" (used indirectly by "git rebase") will fail to apply
the patch of the second commit.

Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-06 23:53:00 -08:00
Björn Gustavsson
c1376c12b7 t4124: Add additional tests of --whitespace=fix
Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-06 23:53:00 -08:00
Björn Gustavsson
24ff4d56cf apply: Remove the quick rejection test
In the next commit, we will make it possible for blank context
lines to match beyond the end of the file. That means that a hunk
with a preimage that has more lines than present in the file may
be possible to successfully apply. Therefore, we must remove
the quick rejection test in find_pos().

find_pos() will already work correctly without the quick
rejection test, but that might not be obvious. Therefore,
comment the test for handling out-of-range line numbers in
find_pos() and cast the "line" variable to the same (unsigned)
type as img->nr.

What are performance implications of removing the quick
rejection test?

It can only help "git apply" to reject a patch faster. For example,
if I have a file with one million lines and a patch that removes
slightly more than 50 percent of the lines and try to apply that
patch twice, the second attempt will fail slightly faster
with the test than without (based on actual measurements).

However, there is the pathological case of a patch with many
more context lines than the default three, and applying that patch
using "git apply -C1". Without the rejection test, the running
time will be roughly proportional to the number of context lines
times the size of the file. That could be handled by writing
a more complicated rejection test (it would have to count the
number of blanks at the end of the preimage), but I don't find
that worth doing until there is a real-world use case that
would benfit from it.

It would be possible to keep the quick rejection test if
--whitespace=fix is not given, but I don't like that from
a testing point of view.

Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-06 23:53:00 -08:00
Stephen Boyd
c9c8c56e07 t7406: Fix submodule init config tests
These tests have been broken since they were introduced in commits
ca2cedb (git-submodule: add support for --rebase., 2009-04-24) and
42b4917 (git-submodule: add support for --merge., 2009-06-03).
'git submodule init' expects the submodules to exist in the index.
In this case, the submodules don't exist and therefore looking for
the submodules will always fail. To make matters worse, git submodule
fails visibly to the user by saying:

error: pathspec 'rebasing' did not match any file(s) known to git.
Did you forget to 'git add'?

but doesn't return an error code. This allows the test to fail silently.
Fix it by adding the submodules first.

Cc: Johan Herland <johan@herland.net>
Cc: Peter Hutterer <peter.hutterer@who-t.net>
Cc: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-06 20:00:02 -08:00
Junio C Hamano
6914c661c3 Merge branch 'jn/maint-fix-pager' into maint
* jn/maint-fix-pager:
  tests: Fix race condition in t7006-pager
  t7006-pager: if stdout is not a terminal, make a new one
  tests: Add tests for automatic use of pager
  am: Fix launching of pager
  git svn: Fix launching of pager
  git.1: Clarify the behavior of the --paginate option
  Make 'git var GIT_PAGER' always print the configured pager
  Fix 'git var' usage synopsis
2010-03-04 22:27:04 -08:00
Junio C Hamano
8cc3709df0 Merge branch 'ld/maint-diff-quiet-w' into maint
* ld/maint-diff-quiet-w:
  git-diff: add a test for git diff --quiet -w
  git diff --quiet -w: check and report the status
2010-03-04 22:26:39 -08:00
Junio C Hamano
ce5044df2a Merge branch 'cc/maint-bisect-paths' into maint
* cc/maint-bisect-paths:
  bisect: error out when passing bad path parameters
2010-03-04 22:25:23 -08:00
Junio C Hamano
a886ba2801 Merge branch 'sp/maint-push-sideband' into maint
* sp/maint-push-sideband:
  receive-pack: Send internal errors over side-band #2
  t5401: Use a bare repository for the remote peer
  receive-pack: Send hook output over side band #2
  receive-pack: Wrap status reports inside side-band-64k
  receive-pack: Refactor how capabilities are shown to the client
  send-pack: demultiplex a sideband stream with status data
  run-command: support custom fd-set in async
  run-command: Allow stderr to be a caller supplied pipe

Conflicts:
	builtin-receive-pack.c
	run-command.c
	t/t5401-update-hooks.sh
2010-03-02 22:54:50 -08:00
Junio C Hamano
a625740aae Merge branch 'jc/maint-fix-test-perm' into maint
* jc/maint-fix-test-perm:
  lib-patch-mode.sh: Fix permission
  t6000lib: Fix permission
2010-03-02 22:38:02 -08:00
Jakub Narebski
9be3614eff gitweb: Fix project-specific feature override behavior
This commit fixes a bug in processing project-specific override in
a situation when there is no project, e.g. for the projects list page.

When 'snapshot' feature had project specific config override enabled
by putting
  $feature{'snapshot'}{'override'} = 1;

(or equivalent) in $GITWEB_CONFIG, and when viewing toplevel gitweb
page, which means the projects list page (to be more exact this
happens for any project-less action), gitweb would put the following
Perl warnings in error log:

  gitweb.cgi: Use of uninitialized value $git_dir in concatenation (.) or string at gitweb.cgi line 2065.
  fatal: error processing config file(s)
  gitweb.cgi: Use of uninitialized value $git_dir in concatenation (.) or string at gitweb.cgi line 2221.
  gitweb.cgi: Use of uninitialized value $git_dir in concatenation (.) or string at gitweb.cgi line 2218.

The problem is in the following fragment of code:

  # path to the current git repository
  our $git_dir;
  $git_dir = "$projectroot/$project" if $project;

  # list of supported snapshot formats
  our @snapshot_fmts = gitweb_get_feature('snapshot');
  @snapshot_fmts = filter_snapshot_fmts(@snapshot_fmts);

For the toplevel gitweb page, which is the list of projects, $project is not
defined, therefore neither is $git_dir.  gitweb_get_feature() subroutine
calls git_get_project_config() if project specific override is turned
on... but we don't have project here.

Those errors mentioned above occur in the following fragment of code in
git_get_project_config():

  	# get config
  	if (!defined $config_file ||
  	    $config_file ne "$git_dir/config") {
  		%config = git_parse_project_config('gitweb');
  		$config_file = "$git_dir/config";
  	}

git_parse_project_config() calls git_cmd() which has '--git-dir='.$git_dir

There are (at least) three possible solutions:
1. Harden gitweb_get_feature() so that it doesn't call
   git_get_project_config() if $project (and therefore $git_dir) is not
   defined; there is no project for project specific config.
2. Harden git_get_project_config() like you did in your fix, returning early
   if $git_dir is not defined.
3. Harden git_cmd() so that it doesn't add "--git-dir=$git_dir" if $git_dir
   is not defined, and change git_get_project_config() so that it doesn't
   even try to access $git_dir if it is not defined.

This commit implements both 1.) and 2.), i.e. gitweb_get_feature() doesn't
call project-specific override if $git_dir is not defined (if there is no
project), and git_get_project_config() returns early if $git_dir is not
defined.

Add a test for this bug to t/t9500-gitweb-standalone-no-errors.sh test.

Reported-by: Eli Barzilay <eli@barzilay.org>
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-02 12:14:44 -08:00
Christian Couder
8f69f72fca bisect: error out when passing bad path parameters
As reported by Mark Lodato, "git bisect", when it was started with
path parameters that match no commit was kind of working without
taking account of path parameters and was reporting something like:

Bisecting: -1 revisions left to test after this (roughly 0 steps)

It is more correct and safer to just error out in this case, before
displaying the revisions left, so this patch does just that.

Note that this bug is very old, it exists at least since v1.5.5.
And it is possible to detect that case earlier in the bisect
algorithm, but it is not clear that it would be an improvement to
error out earlier, on the contrary it may change the behavior of
"git rev-list --bisect-all" for example, which is currently correct.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-01 01:04:35 -08:00
Adam Simpkins
4a9f439415 reflog: honor gc.reflogexpire=never
Previously, if gc.reflogexpire or gc.reflogexpire were set to "never"
or "false", the builtin default values were used instead.

Signed-off-by: Adam Simpkins <simpkins@facebook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-28 10:28:26 -08:00
Adam Simpkins
cbf731ed4e prune: honor --expire=never
Previously, prune treated an expiration time of 0 to mean that no
expire argument was supplied, and everything should be pruned.  As a
result, "prune --expire=never" would prune all unreachable objects,
regardless of their timestamp.

prune can be called with --expire=never automatically by gc, when the
gc.pruneExpire configuration is set to "never".

Signed-off-by: Adam Simpkins <simpkins@facebook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-28 10:28:05 -08:00
Junio C Hamano
64da6e20de Merge branch 'maint-1.6.6' into maint
* maint-1.6.6:
  t3301-notes: insert a shbang line in ./fake_editor.sh
2010-02-25 23:21:42 -08:00
Johannes Sixt
97a449ee30 t3301-notes: insert a shbang line in ./fake_editor.sh
This is required on Windows because git-notes is now a built-in
rather than a shell script.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-25 12:20:16 -08:00
Junio C Hamano
e6cc51046f fetch --all/--multiple: keep all the fetched branch information
Since "git fetch" learned "--all" and "--multiple" options, it has become
tempting for users to say "git pull --all".  Even though it may fetch from
remotes that do not need to be fetched from for merging with the current
branch, it is handy.

"git fetch" however clears the list of fetched branches every time it
contacts a different remote.  Unless the current branch is configured to
merge with a branch from a remote that happens to be the last in the list
of remotes that are contacted, "git pull" that fetches from multiple
remotes will not be able to find the branch it should be merging with.

Make "fetch" clear FETCH_HEAD (unless --append is given) and then append
the list of branches fetched to it (even when --append is not given).  That
way, "pull" will be able to find the data for the branch being merged in
FETCH_HEAD no matter where the remote appears in the list of remotes to be
contacted by "git fetch".

Reported-by: Michael Lukashov
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-24 11:16:36 -08:00
Junio C Hamano
bba5322a71 builtin-fetch --all/--multi: propagate options correctly
When running a subfetch, the code propagated some options but not others.
Propagate --force, --update-head-ok and --keep options as well.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-24 10:51:07 -08:00
Junio C Hamano
13e65fe631 t5521: fix and modernize
All of these tests were bogus, as they created new directory and tried to
run "git pull" without even running "git init" in there.  They were mucking
with the repository in $TEST_DIRECTORY.

While fixing it, modernize the style not to chdir around outside of
subshell.  Otherwise a failed test will take us to an unexpected directory
and we need to chdir back to the test directory in each test, which is
ugly and error prone.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-24 10:41:12 -08:00
Jeff King
e1327ed5fb add-interactive: fix bogus diff header line ordering
When we look at a patch for adding hunks interactively, we
first split it into a header and a list of hunks. Some of
the header lines, such as mode changes and deletion, however,
become their own selectable hunks. Later when we reassemble
the patch, we simply concatenate the header and the selected
hunks. This leads to patches like this:

  diff --git a/file b/file
  index d95f3ad..0000000
  --- a/file
  +++ /dev/null
  deleted file mode 100644
  @@ -1 +0,0 @@
  -content

Notice how the deletion comes _after_ the ---/+++ lines,
when it should come before.

In many cases, we can get away with this as git-apply
accepts the slightly bogus input. However, in the specific
case of a deletion line that is being applied via "apply
-R", this malformed patch triggers an assert in git-apply.
This comes up when discarding a deletion via "git checkout
-p".

Rather than try to make git-apply accept our odd input,
let's just reassemble the patch in the correct order.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-22 19:23:49 -08:00