1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-11-17 22:44:49 +01:00
Commit graph

19220 commits

Author SHA1 Message Date
Thomas Rast
dda1f2a5c3 Implement 'git stash save --patch'
This adds a hunk-based mode to git-stash.  You can select hunks from
the difference between HEAD and worktree, and git-stash will build a
stash that reflects these changes.  The index state of the stash is
the same as your current index, and we also let --patch imply
--keep-index.

Note that because the selected hunks are rolled back from the worktree
but not the index, the resulting state may appear somewhat confusing
if you had also staged these changes.  This is not entirely
satisfactory, but due to the way stashes are applied, other solutions
would require a change to the stash format.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-15 15:19:31 -07:00
Thomas Rast
4f353658b9 Implement 'git checkout --patch'
This introduces a --patch mode for git-checkout.  In the index usage

  git checkout --patch -- [files...]

it lets the user discard edits from the <files> at the granularity of
hunks (by selecting hunks from 'git diff' and then reverse applying
them to the worktree).

We also accept a revision argument.  In the case

  git checkout --patch HEAD -- [files...]

we offer hunks from the difference between HEAD and the worktree, and
reverse applies them to both index and worktree, allowing you to
discard staged changes completely.  In the non-HEAD usage

  git checkout --patch <revision> -- [files...]

it offers hunks from the difference between the worktree and
<revision>.  The chosen hunks are then applied to both index and
worktree.

The application to worktree and index is done "atomically" in the
sense that we first check if the patch applies to the index (it should
always apply to the worktree).  If it does not, we give the user a
choice to either abort or apply to the worktree anyway.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-15 15:18:05 -07:00
Thomas Rast
d002ef4d94 Implement 'git reset --patch'
This introduces a --patch mode for git-reset.  The basic case is

  git reset --patch -- [files...]

which acts as the opposite of 'git add --patch -- [files...]': it
offers hunks for *un*staging.  Advanced usage is

  git reset --patch <revision> -- [files...]

which offers hunks from the diff between the index and <revision> for
forward application to the index.  (That is, the basic case is just
<revision> = HEAD.)

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-15 15:17:47 -07:00
Thomas Rast
46b5139cae builtin-add: refactor the meat of interactive_add()
This moves the call setup for 'git add--interactive' to a separate
function, as other users will call it without running
validate_pathspec() first.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-14 12:40:09 -07:00
Thomas Rast
b319ef70a9 Add a small patch-mode testing library
The tests for {reset,commit,stash} -p will frequently have to set both
worktree and index states to known values, and verify that the outcome
(again both worktree and index) are what was expected.

Add a small helper library that lets us do these tasks more easily.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-14 12:40:09 -07:00
Thomas Rast
8f0bef6df9 git-apply--interactive: Refactor patch mode code
This makes some aspects of the 'git add -p' loop configurable (within
the code), so that we can later reuse git-add--interactive for other
similar tools.

Most fields are fairly straightforward, but APPLY gets a subroutine
(instead of just a string a la 'apply --cached') so that we can handle
'checkout -p', which will need to atomically apply the patch twice
(index and worktree).

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-14 12:40:09 -07:00
Junio C Hamano
6517452d7a Merge branch 'maint'
* maint:
  t8005: Nobody writes Russian in shift_jis

Conflicts:
	t/t8005-blame-i18n.sh
2009-07-25 02:16:25 -07:00
Junio C Hamano
54bc13ce53 t8005: Nobody writes Russian in shift_jis
The second and third tests of this script expected that Russian strings
are converted between ISO-8859-5 and Shift_JIS in the "blame --porcelain"
format output correctly.

Sure, many platforms may convert between such a combination, but that is
only because one of the base character set of Shift_JIS, JIS X 0208,
defines codepoints for Russian characters (among others); I do not think
anybody uses Shift_JIS when seriously writing Russian, and it is perfectly
understandable if iconv() libraries on some platforms fail converting
between this combination, as it does not matter in reality.

This patch changes the test to verify Japanese strings are converted
correctly between EUC-JP and Shift_JIS in the same procedure.  The point
of the test is not about verifying the platform's iconv() library, but to
see if "git blame" makes correct iconv() library calls when it should.

We could instead use ISO-8859-5 and KOI8-R as the combination, because
they are both meant to represent Russian, in order to make this test
meaningful on more platforms, but we already use Shift_JIS vs EUC-JP
combinations to test other programs in our test suite, so this combination
is safer from the point of view of the portability.  Besides, I do not
read nor write Russian; sorry ;-)

This change allows tests to pass on my (friend's) Solaris 5.11 box.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-25 02:14:56 -07:00
Junio C Hamano
8f5e3ca7d1 Merge branch 'maint'
* maint:
  Fix severe breakage in "git-apply --whitespace=fix"
2009-07-25 01:31:53 -07:00
Junio C Hamano
422a82f213 Fix severe breakage in "git-apply --whitespace=fix"
735c674 (Trailing whitespace and no newline fix, 2009-07-22) completely
broke --whitespace=fix, causing it to lose all the empty lines in a patch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-25 01:29:20 -07:00
Junio C Hamano
b3601a6338 Update release notes for 1.6.4
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-25 00:51:21 -07:00
Junio C Hamano
130b04ab37 Merge branch 'js/maint-graft-unhide-true-parents'
* js/maint-graft-unhide-true-parents:
  git repack: keep commits hidden by a graft
  Add a test showing that 'git repack' throws away grafted-away parents

Conflicts:
	git-repack.sh
2009-07-25 00:45:03 -07:00
Junio C Hamano
a7c1ef3e03 Merge branch 'av/maint-config-reader'
* av/maint-config-reader:
  After renaming a section, print any trailing variable definitions
  Make section_name_match start on '[', and return the length on success
2009-07-25 00:44:52 -07:00
Junio C Hamano
e34bbd3b3c Merge branch 'jk/maint-send-email-alias-loop'
* jk/maint-send-email-alias-loop:
  send-email: detect cycles in alias expansion
2009-07-25 00:44:45 -07:00
Alex Vandiver
9a5abfc737 After renaming a section, print any trailing variable definitions
Signed-off-by: Alex Vandiver <alex@chmrr.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-24 23:42:44 -07:00
Alex Vandiver
a4c0d463c0 Make section_name_match start on '[', and return the length on success
Signed-off-by: Alex Vandiver <alex@chmrr.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-24 23:42:34 -07:00
Jeff King
302e04ea4d send-email: detect cycles in alias expansion
With the previous code, an alias cycle like:

  $ echo 'alias a b' >aliases
  $ echo 'alias b a' >aliases
  $ git config sendemail.aliasesfile aliases
  $ git config sendemail.aliasfiletype mutt

would put send-email into an infinite loop. This patch
detects the situation and complains to the user.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-24 09:32:46 -07:00
Daniel Trstenjak
397f7c6371 Show the presence of untracked files in the bash prompt.
Added the envvar GIT_PS1_SHOWUNTRACKEDFILES to 'git-completion.bash'.
When set to a nonempty value, then the char '%' will be shown next
to the branch name in the bash prompt.

Signed-off-by: Daniel Trstenjak <daniel.trstenjak@science-computing.de>
Acked-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-24 09:27:18 -07:00
Junio C Hamano
f87dd2152a Merge branch 'maint'
* maint:
  SunOS grep does not understand -C<n> nor -e
  Fix export_marks() error handling.
  git branch: clean up detached branch handling
  git branch: avoid unnecessary object lookups
  git branch: fix performance problem
  do_one_ref(): null_sha1 check is not about broken ref

Conflicts:
	Makefile
2009-07-24 09:27:09 -07:00
Junio C Hamano
01ae841ccf SunOS grep does not understand -C<n> nor -e
The first "grep -C1" test in t7002 does not pass on my SunOS-5.11-i86pc,
and that is not because our way to spawn external grep is broken, but
because the native grep does not understand -C<n>.

It turns out that Peff was also using this option himself because our
Makefile doesn't do that automatically.  Brandon Casey uses SUNWspro
compiler without having to set this, and it turns out that the compiler
does not define preprocessor macro __unix__ which made him always use the
built-in grep, never an external one.

Let's be more explicit and say that we do not use external grep on Suns.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-24 09:20:34 -07:00
Matthias Andree
96d69b5543 Fix export_marks() error handling.
- Don't leak one FILE * on error per export_marks() call. Found with
  cppcheck and reported by Martin Ettl.

- Abort the potentially long for(;idnums.size;) loop on write errors.

- Record error if fprintf() fails for reasons not required to set the
  stream error indicator, such as ENOMEM.

- Add a trailing full-stop to error message when fopen() fails.

Signed-off-by: Matthias Andree <matthias.andree@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-24 09:12:26 -07:00
Johannes Schindelin
7f3140cd23 git repack: keep commits hidden by a graft
When you have grafts that pretend that a given commit has different
parents than the ones recorded in the commit object, it is dangerous
to let 'git repack' remove those hidden parents, as you can easily
remove the graft and end up with a broken repository.

So let's play it safe and keep those parent objects and everything
that is reachable by them, in addition to the grafted parents.

As this behavior can only be triggered by git pack-objects, and as that
command handles duplicate parents gracefully, we do not bother to cull
duplicated parents that may result by using both true and grafted
parents.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-24 09:10:16 -07:00
Björn Steinbrink
1ec648278e Add a test showing that 'git repack' throws away grafted-away parents
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-23 22:07:51 -07:00
Linus Torvalds
7e9ff00bbe git branch: clean up detached branch handling
Make the 'show detached branch info' a routine of its own.  And in the
process, avoid the object lookup that is unnecessary if the current
branch isn't detached.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-23 21:56:07 -07:00
Linus Torvalds
191d1ac435 git branch: avoid unnecessary object lookups
They can be expensive in the cold-cache case, so don't bother looking up
the commits for all branches unless we really need them for some reason.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-23 21:56:04 -07:00
Linus Torvalds
e6e4a47ba1 git branch: fix performance problem
'git branch' looks at _all_ the refs, and verifies them.  Which means that
during cold-cache situations with a slow disk (and lots of tags, for
example) it can take several very annoying seconds (7.5s according to a
report by Carlos R.  Mafra).

This avoids most of it by simply doing the filtering before looking up
the commits, by using the "raw" version of for_each_ref.

Reported-by: Carlos R. Mafra <crmafra2@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-23 21:56:00 -07:00
Eric Wong
4aacaeb3dc git svn: fix shallow clone when upstream revision is too new
Thanks to Ka-Hing Cheung for the initial bug report and patch:
> git-svn uses $ra->get_latest_revnum to find out the latest
> revision, but that can be problematic, because get_latest_revnum
> returns the latest revnum in the entire repository, not
> restricted by whatever URL you used to construct $ra. So if you
> do git svn clone -r HEAD svn://blah/blah/trunk, it won't work if
> the latest checkin is in one of the branches (it will try to
> fetch a rev that doesn't exist in trunk, making the clone
> useless).

Relying on SVN::Core::INVALID_REVNUM (-1) as the "start"
argument to SVN::Ra::get_log() proved unreliable with http(s)
URLs so the result of SVN::Ra::get_latest_revnum() is used as
the "start" argument instead.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2009-07-22 23:45:29 -07:00
Junio C Hamano
eafb45265b do_one_ref(): null_sha1 check is not about broken ref
f8948e2 (remote prune: warn dangling symrefs, 2009-02-08) introduced a
more dangerous variant of for_each_ref() family that skips the check for
dangling refs, but it also made another unrelated check optional by
mistake.

The check to see if a ref points at 0{40} is not about brokenness, but is
about a possible future plan to represent a deleted ref by writing 40 "0"
in a loose ref when there is a stale version of the same ref already in
.git/packed-refs, so that we can implement deletion of a ref without
having to rewrite the packed refs file excluding the ref being deleted.

This check has to live outside of the conditional.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 23:07:05 -07:00
Brandon Casey
0ad8ff2cd1 configure.ac: properly unset NEEDS_SSL_WITH_CRYPTO when sha1 func is missing
The empty assignment NEEDS_SSL_WITH_CRYPTO= was mistakenly paired with the
assignment NEEDS_SSL_WITH_CRYPTO=YesPlease in the "action-if-found"
parameter of the AC_CHECK_LIB macro.  The empty assignment was intended for
the "action-if-not-found" section, since in that case, the necessary sha1
hash function was not found and the internal sha1 implementation will be
used instead.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 21:57:41 -07:00
Pierre Habouzit
24deea5273 janitor: useless checks before free
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 21:57:41 -07:00
Pierre Habouzit
98cb6f30f7 janitor: add DIV_ROUND_UP and use it.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 21:57:41 -07:00
Pierre Habouzit
f630cfda88 refactor: use bitsizeof() instead of 8 * sizeof()
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 21:57:41 -07:00
Pierre Habouzit
67da52bedc janitor: use NULL and not 0 for pointers.
Brought to you thanks to coccinelle:

    ---8<----
    @@
    expression *E;
    @@
    (
      E ==
    - 0
    + NULL
    |
      E !=
    - 0
    + NULL
    |
      E =
    - 0
    + NULL
    )

    @@
    identifier f;
    type T;
    @@
    T *f(...) {
    <...
    - return 0;
    + return NULL;
    ...>
    }
    --->8----

There are a lot more hits in compat/nedmallox and compat/regex but these
are borrowed code we rather do not want to maintain our own forks for,
and this patch refrains from touching them.

Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 21:57:41 -07:00
Martin Koegler
5207079053 git stash: modernize use of "dashed" git-XXX calls
Replace remaining git-XXX calls with git XXX.

Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Acked-by: Nanako Shiraishi <nanako3@lavabit.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 21:57:41 -07:00
Yann Dirson
f693b7e9a5 Improve doc for format-patch threading options.
This hopefully makes the relationship between threading options of
format-patch and send-email easier to grasp.

Signed-off-by: Yann Dirson <ydirson@altern.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 21:57:41 -07:00
Yann Dirson
65180c6618 List send-email config options in config.txt.
Also mention deprecated aliases that do not appear in the send-email
manpage.

Signed-off-by: Yann Dirson <ydirson@altern.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 21:57:41 -07:00
Brandon Casey
a1142892fd configure.ac: rework/fix the NEEDS_RESOLV and NEEDS_LIBGEN tests
The "action" parameters for these two tests were supplied incorrectly for
the way the tests were implemented.  The tests check whether a program
which calls hstrerror() or basename() successfully links when -lresolv or
-lgen are used, respectively.  A successful linking would result in
NEEDS_RESOLV or NEEDS_LIBGEN being unset, and failure would result in
setting the respective variable.

Aside from that issue, the tests did not handle the case where neither
library was necessary for accessing the functions in question.  So solve
both of these issues by re-working the two tests so that their form is like
the NEEDS_SOCKET test which attempts to link with just the c library, and
if it fails then assumes that the additional library is necessary and sets
the appropriate variable.

Also an entry in the config.mak.in file is necessary for the NEEDS_LIBGEN
variable to appear in the config.mak.autogen file with the value assigned
by the configure script.  Without it, the generated shell script would
contain a snippet like this:

   for ac_lib in ; do
      ...

which is incorrect.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 21:56:51 -07:00
Junio C Hamano
248b6c0609 Merge branch 'maint'
* maint:
  Trailing whitespace and no newline fix
  diff --cc: a lost line at the beginning of the file is shown incorrectly
  combine-diff.c: fix performance problem when folding common deleted lines
2009-07-22 21:56:46 -07:00
SZEDER Gábor
735c674416 Trailing whitespace and no newline fix
If a patch adds a new line to the end of a file and this line ends with
one trailing whitespace character and has no newline, then
'--whitespace=fix' currently does not remove that trailing whitespace.

This patch fixes this by removing the check for trailing whitespace at
the end of the line at a hardcoded offset which does not take the
eventual absence of newline into account.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 18:54:55 -07:00
Junio C Hamano
b810cbbde9 diff --cc: a lost line at the beginning of the file is shown incorrectly
When combine-diff inspected the diff from one parent to the merge result,
it misinterpreted a header in the form @@ -l,k +0,0 @@.

This hunk header means that K lines were removed from the beginning of the
file, so the lost lines must be queued to the sline that represents the
first line of the merge result, but we incremented our pointer incorrectly
and ended up queuing it to the second line, which in turn made the lossage
appear _after_ the first line.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 15:38:22 -07:00
Junio C Hamano
55d5d5bab7 combine-diff.c: fix performance problem when folding common deleted lines
For a deleted line in a patch with the parent we are looking at, the
append_lost() function finds the same line among a run of lines that were
deleted from the same location by patches from parents we previously
checked.  This is so that patches with two parents

    @@ -1,4 +1,3 @@    @@ -1,4 +1,3 @@
     one                   one
    -two                  -two
     three                 three
    -quatro               -fyra
    +four                 +four

can be coalesced into this sequence, reusing one line that describes the
removal of "two" for both parents.

   @@@ -1,4 -1,4 +1,3 @@@
     one
   --two
     three
   - quatro
    -frya
   ++four

While reading the second patch (that removes "two" and then "fyra"), after
finding where removal of the "two" matches, we need to find existing
removal of "fyra" (if exists) in the removal list, but the match has to
happen after all the existing matches (in this case "two").  The code used
a naïve O(n^2) algorithm to compute this by scanning the whole removal
list over and over again.

This patch remembers where the next scan should be started in the existing
removal list to avoid this.

Noticed by Linus Torvalds.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 15:37:55 -07:00
Eric Wong
2a679c7a31 git svn: fix reparenting when ugly http(s) URLs are used
Mishandling of http(s) in need of escaping was causing
t9118-git-svn-funky-branch-names to fail when SVN_HTTPD_PORT
 was defined.

This bug was exposed in (but not caused by)
commit 0b2af457a4
(Fix branch detection when repository root is inaccessible)

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2009-07-19 22:50:06 -07:00
Eric Wong
f0e8b1a3ed git svn: rename tests that had conflicting numbers
Some unrelated tests were developed simultaneously and resulted
in test numbers conflicting.  To avoid difficulty when referring
to tests via the "tXXXX" convention, rename the newer tests.

Suggested by Marc Branchaud.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2009-07-19 22:50:06 -07:00
Junio C Hamano
77acc32b29 Updates to draft release notes to 1.6.4
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-18 17:21:35 -07:00
Junio C Hamano
bba0fd22ad push: do not give big warning when no preference is configured
If the message said "we will be changing the default in the future, so
this is to warn people who want to keep the current default what to do",
it would have made some sense, but as it stands, the message is merely an
unsolicited advertisement for a new feature, which it is not helpful at
all.  Squelch it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-18 17:20:52 -07:00
Michael J Gruber
d5cee0f786 t4202-log.sh: Test git log --no-walk sort order
'git log --no-walk' sorts commits by commit time whereas 'git show' does
not (it leaves them as given on the command line). Document this by two
tests so that we never forget why ba1d450 (Tentative built-in "git
show", 2006-04-15) introduced it and 8e64006 (Teach revision machinery
about --no-walk, 2007-07-24) exposed it as an option argument.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-18 16:57:49 -07:00
Mike Ralphson
3de4a44308 cvsexportcommit: reorder tests to quiet intermittent failure
Reorder tests introduced in fef3a7cc and 54d5cc0e so an intermittent but
unimportant failure on the CVS side related to the former does not interfere
with what is actually being tested.

Signed-off-by: Mike Ralphson <mike@abacus.co.uk>
Tested-by: Tommy Nordgren <tommy.nordgren@comhem.se>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-18 16:57:49 -07:00
Junio C Hamano
58b1ef2f0f Merge branch 'maint'
* maint:
  checkout -f: deal with a D/F conflict entry correctly
  sha1_name.c: avoid unnecessary strbuf_release
  refs.c: release file descriptor on error return
2009-07-18 16:57:47 -07:00
Junio C Hamano
78d3b06e0f checkout -f: deal with a D/F conflict entry correctly
When we switch branches with "checkout -f", unpack_trees() feeds two
cache_entries to oneway_merge() function in its src[] array argument.  The
zeroth entry comes from the current index, and the first entry represents
what the merge result should be, taken from the tree recorded in the
commit we are switching to.

When we have a blob (either regular file or a symlink) in the index and in
the work tree at path "foo", and the switched-to tree has "foo/bar",
i.e. "foo" becomes a directory, src[0] is obviously that blob currently
registered at "foo".  Even though we do not have anything at "foo" in the
switched-to tree, src[1] is _not_ NULL in this case.

The unpack_trees() machinery places a special marker df_conflict_entry
to signal that no blob exists at "foo", but it will become a directory
that may have somthing underneath it (namely "foo/bar"), so a usual 3-way
merge can notice the situation.

But oneway_merge() codepath failed to notice this and passed the special
marker directly to merged_entry().  This happens to remove the "foo" in
the end because the df_conflict_entry does not have any name (hence the
"error" message) and its addition in add_index_entry() is rejected, but it
is wrong.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-18 16:57:30 -07:00
Brandon Casey
b45a09c4b4 sha1_name.c: avoid unnecessary strbuf_release
When we fall back to a standard for_each_reflog_ent() after failing to find
the nth branch switch (or if we had a short reflog) with the call to
for_each_recent_reflog_ent(), we do not need to free the memory allocated
for our strbuf's since a strbuf_reset() will be performed in
grab_nth_branch_switch() before assigning to the entry.

Plus, the strbuf_release() negates the non-zero hint we initially gave to
strbuf_init() just above these lines.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-16 15:09:21 -07:00