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Author SHA1 Message Date
Junio C Hamano
7bcb7473bb Merge branch 'ef/win32-cred-helper'
Credential helper for Win32 to allow access to the keychain of
the logged-in user.

* ef/win32-cred-helper:
  contrib: add win32 credential-helper
2012-08-29 14:50:24 -07:00
Junio C Hamano
1c0fa76be7 Merge branch 'hv/submodule-path-unmatch'
* hv/submodule-path-unmatch:
  Let submodule command exit with error status if path does not exist
2012-08-29 14:50:15 -07:00
Junio C Hamano
570f2933ff Merge branch 'mz/empty-rebase-test'
* mz/empty-rebase-test:
  add tests for 'git rebase --keep-empty'
2012-08-29 14:49:57 -07:00
Junio C Hamano
445d2c51a4 Merge branch 'js/grep-patterntype-config'
"grep" learned to use a non-standard pattern type by default if a
configuration variable tells it to.

* js/grep-patterntype-config:
  grep: add a grep.patternType configuration setting
2012-08-27 11:55:09 -07:00
Junio C Hamano
2df9988470 Merge branch 'bc/receive-pack-stdout-protection'
When "git push" triggered the automatic gc on the receiving end, a
message from "git prune" that said it was removing cruft leaked to
the standard output, breaking the communication protocol.

* bc/receive-pack-stdout-protection:
  receive-pack: do not leak output from auto-gc to standard output
  t/t5400: demonstrate breakage caused by informational message from prune
2012-08-27 11:55:00 -07:00
Junio C Hamano
e6daf0ac22 Merge branch 'ab/diff-write-incomplete-line'
The output from "git diff -B" for a file that ends with an
incomplete line did not put "\ No newline..." on a line of its own.

* ab/diff-write-incomplete-line:
  Fix '\ No newline...' annotation in rewrite diffs
2012-08-27 11:54:46 -07:00
Junio C Hamano
e3fe71433f Merge branch 'jc/maint-t7406-rev-parse-max-count-huh'
Test clean-up, with no behaviour change.

* jc/maint-t7406-rev-parse-max-count-huh:
  t7406: fix misleading "rev-parse --max-count=1 HEAD"
2012-08-27 11:54:36 -07:00
Junio C Hamano
3b753148b6 Merge branch 'jk/maint-null-in-trees'
We do not want a link to 0{40} object stored anywhere in our objects.

* jk/maint-null-in-trees:
  fsck: detect null sha1 in tree entries
  do not write null sha1s to on-disk index
  diff: do not use null sha1 as a sentinel value
2012-08-27 11:54:28 -07:00
Junio C Hamano
b9148c3763 Merge branch 'mm/push-default-switch-warning'
In the next major release, we will switch "git push [$there]" that
does not say what to push from the traditional "matching" to the
updated "simple" semantics, that pushes the current branch to the
branch with the same name only when the current branch is set to
integrate with that remote branch (all other cases will error out).

* mm/push-default-switch-warning:
  push: start warning upcoming default change for push.default
2012-08-27 11:54:04 -07:00
Junio C Hamano
4692f32ddf Merge branch 'tr/maint-send-email-2047'
"git send-email" did not unquote encoded words that appear on the
header correctly, and lost "_" from strings.

* tr/maint-send-email-2047:
  send-email: improve RFC2047 quote parsing
2012-08-22 11:51:47 -07:00
Junio C Hamano
c90f06efd8 Merge branch 'mk/test-seq'
Add a compatibility/utility function to the test framework.

* mk/test-seq:
  tests: Introduce test_seq
2012-08-22 11:51:38 -07:00
Junio C Hamano
16a3f91a36 Merge branch 'jc/test-prereq'
Teaches the test framework to probe rarely used prerequistes lazily,
and make use of it for detecting SYMLINKS, CASE_INSENSITIVE_FS and
NKD/NKC MacOS x gotcha.

* jc/test-prereq:
  t3910: use the UTF8_NFD_TO_NFC test prereq
  test-lib: provide UTF8 behaviour as a prerequisite
  t0050: use the SYMLINKS test prereq
  t0050: use the CASE_INSENSITIVE_FS test prereq
  test-lib: provide case insensitivity as a prerequisite
  test: allow prerequisite to be evaluated lazily
  test: rename $satisfied to $satisfied_prereq
2012-08-22 11:51:27 -07:00
Junio C Hamano
9d305e5e70 Merge branch 'ms/git-svn-1.7'
A series by Michael Schwern via Eric to update git-svn to revamp the
way URLs are internally passed around, to make it work with SVN 1.7.

* ms/git-svn-1.7:
  git-svn: remove ad-hoc canonicalizations
  git-svn: canonicalize newly-minted URLs
  git-svn: introduce add_path_to_url function
  git-svn: canonicalize earlier
  git-svn: replace URL escapes with canonicalization
  git-svn: attempt to mimic SVN 1.7 URL canonicalization
  t9107: fix typo
  t9118: workaround inconsistency between SVN versions
  Git::SVN{,::Ra}: canonicalize earlier
  git-svn: path canonicalization uses SVN API
  Git::SVN::Utils: remove irrelevant comment
  git-svn: add join_paths() to safely concatenate paths
  git-svn: factor out _collapse_dotdot function
  git-svn: use SVN 1.7 to canonicalize when possible
  git-svn: move canonicalization to Git::SVN::Utils
  use Git::SVN{,::RA}->url accessor globally
  use Git::SVN->path accessor globally
  Git::SVN::Ra: use accessor for URLs
  Git::SVN: use accessor for URLs internally
  Git::SVN: use accessors internally for path
2012-08-22 11:51:20 -07:00
Michael J Gruber
308566eb8b t3910: use the UTF8_NFD_TO_NFC test prereq
Besides reusing the new test prerequisite, this fixes also the issue
that the current output is not TAP compliant and produces the output "no
reason given" [for skipping].

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-22 11:50:50 -07:00
Erik Faye-Lund
a6253da0f3 contrib: add win32 credential-helper
Since the Windows port of Git expects binary pipes, we need to make
sure the helper-end also sets up binary pipes.

Side-step CRLF-issue in test to make it pass.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-16 20:34:56 -07:00
Heiko Voigt
be9d0a3a4c Let submodule command exit with error status if path does not exist
Various subcommands of the "git submodule" command exited with 0
status even though the path given by the user did not exist.

The reason behind that was that they all pipe the output of
module_list into the while loop which then does the action on the
paths specified by the commandline. Since the exit code of the
command on the upstream side of the pipe is ignored by the shell,
the status code of "ls-files --error-unmatch" nor "module_list" was
not propagated.

In case ls-files returns with an error code, we write a special
string that is not possible in non error situations, and no other
output, so that the downstream can detect the error and die with an
error code.

The error message that there is an unmatched pathspec comes through
stderr directly from ls-files. So the user still gets a hint whats going
on.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-14 14:00:17 -07:00
Peter Baumann
61b472ed8b git svn: reset invalidates the memoized mergeinfo caches
Since v1.7.0-rc2~11 (git-svn: persistent memoization, 2010-01-30),
git-svn has maintained some private per-repository caches in
.git/svn/.caches to avoid refetching and recalculating some
mergeinfo-related information with every 'git svn fetch'.

This memoization can cause problems, e.g consider the following case:

SVN repo:

  ... - a - b - c - m  <- trunk
          \        /
            d  -  e    <- branch1

The Git import of the above repo is at commit 'a' and doesn't know about
the branch1. In case of an 'git svn rebase', only the trunk of the
SVN repo is imported. During the creation of the git commit 'm', git svn
uses the svn:mergeinfo property and tries to find the corresponding git
commit 'e' to create 'm' with 'c' and 'e' as parents. But git svn rebase
only imports the current branch so commit 'e' is not imported.
Therefore git svn fails to create commit 'm' as a merge commit, because one
of its parents is not known to git. The imported history looks like this:

  ... - a - b - c - m  <- trunk

A later 'git svn fetch' to import all branches can't rewrite the commit 'm'
to add 'e' as a parent and to make it a real git merge commit, because it
was already imported.

That's why the imported history misses the merge and looks like this:

  ... - a - b - c - m  <- trunk
          \
            d  -  e    <- branch1

Right now the only known workaround for importing 'm' as a merge is to
force reimporting 'm' again from SVN, e.g. via

  $ git svn reset --revision $(git find-rev $c)
  $ git svn fetch

Sadly, this is where the behavior has regressed: git svn reset doesn't
invalidate the old mergeinfo cache, which is no longer valid for the
reimport, which leads to 'm' beeing imprted with only 'c' as parent.

As solution to this problem, this commit invalidates the mergeinfo cache
to force correct recalculation of the parents.

During development of this patch, several ways for invalidating the cache
where considered. One of them is to use Memoize::flush_cache, which will
call the CLEAR method on the underlying Memoize persistency implementation.
Sadly, neither Memoize::Storable nor the newer Memoize::YAML module
introduced in 68f532f4ba could optionally be used implement the
CLEAR method, so this is not an option.

Reseting the internal hash used to store the memoized values has the same
problem, because it calls the non-existing CLEAR method of the
underlying persistency layer, too.

Considering this and taking into account the different implementations
of the memoization modules, where Memoize::Storable is not in our control,
implementing the missing CLEAR method is not an option, at least not if
Memoize::Storable is still used.

Therefore the easiest solution to clear the cache is to delete the files
on disk in 'git svn reset'. Normally, deleting the files behind the back
of the memoization module would be problematic, because the in-memory
representation would still exist and contain wrong data. Fortunately, the
memoization is active in memory only for a small portion of the code.
Invalidating the cache by deleting the files on disk if it isn't active
should be safe.

Signed-off-by: Peter Baumann <waste.manager@gmx.de>
Signed-off-by: Steven Walter <stevenrwalter@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-08-10 19:53:18 +00:00
Robert Luberda
e48fb750f5 git svn: handle errors and concurrent commits in dcommit
dcommit didn't handle errors returned by SVN and coped very
poorly with concurrent commits that appear in SVN repository
while dcommit was running. In both cases it left git repository
in inconsistent state: index (which was reset with `git reset
--mixed' after a successful commit to SVN) no longer matched the
checkouted tree, when the following commit failed or needed to be
rebased. See http://bugs.debian.org/676904 for examples.

This patch fixes the issues by:
- introducing error handler for dcommit. The handler will try
  to rebase or reset working tree before returning error to the
  end user. dcommit_rebase function was extracted out of cmd_dcommit
  to ensure consistency between cmd_dcommit and the error handler.
- calling `git reset --mixed' only once after all patches are
  successfully committed to SVN. This ensures index is not touched
  for most of the time of dcommit run.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-08-10 19:53:18 +00:00
Martin von Zweigbergk
2542840344 add tests for 'git rebase --keep-empty'
Add test cases for 'git rebase --keep-empty' with and without an
"empty" commit already in upstream. The empty commit that is about to
be rebased should be kept in both cases.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-09 10:10:45 -07:00
Junio C Hamano
4b7f2fa4c6 receive-pack: do not leak output from auto-gc to standard output
The standard output channel of receive-pack is a structured protocol
channel, and subprocesses must never be allowed to leak anything
into it by writing to their standard output.

Use RUN_COMMAND_STDOUT_TO_STDERR option to run_command_v_opt() just
like we do when running hooks to prevent output from "gc" leaking to
the standard output.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-06 22:31:10 -07:00
Brandon Casey
2c3fd4bbb4 t/t5400: demonstrate breakage caused by informational message from prune
When receive-pack triggers 'git gc --auto' and 'git prune' is called to
remove a stale temporary object, 'git prune' prints an informational
message to stdout about the file that it will remove.  Since this message
is written to stdout, it is sent back over the transport channel to the git
client which tries to interpret it as part of the pack protocol and then
promptly terminates with a complaint about a protocol error.

Introduce a test which exercises the auto-gc functionality of receive-pack
and demonstrates this breakage.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-06 22:29:30 -07:00
Adam Butcher
35e2d03c2c Fix '\ No newline...' annotation in rewrite diffs
When a file that ends with an incomplete line is expressed as a
complete rewrite with the -B option, git diff incorrectly
appends the incomplete line indicator "\ No newline at end of
file" after such a line, rather than writing it on a line of its
own (the output codepath for normal output without -B does not
have this problem).  Add a LF after the incomplete line before
writing the "\ No newline ..." out to fix this.

Add a couple of tests to confirm that the indicator comment is
generated on its own line in both plain diff and rewrite mode.

Signed-off-by: Adam Butcher <dev.lists@jessamine.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-05 12:37:52 -07:00
Michał Kiedrowicz
d17cf5f3a3 tests: Introduce test_seq
Jeff King wrote:

	The seq command is GNU-ism, and is missing at least in older BSD
	releases and their derivatives, not to mention antique
	commercial Unixes.

	We already purged it in b3431bc (Don't use seq in tests, not
	everyone has it, 2007-05-02), but a few new instances have crept
	in. They went unnoticed because they are in scripts that are not
	run by default.

Replace them with test_seq that is implemented with a Perl snippet
(proposed by Jeff).  This is better than inlining this snippet
everywhere it's needed because it's easier to read and it's easier
to change the implementation (e.g. to C) if we ever decide to remove
Perl from the test suite.

Note that test_seq is not a complete replacement for seq(1).  It
just has what we need now, in addition that it makes it possible for
us to do something like "test_seq a m" if we wanted to in the
future.

There are also many places that do `for i in 1 2 3 ...` but I'm not sure
if it's worth converting them to test_seq.  That would introduce running
more processes of Perl.

Signed-off-by: Michał Kiedrowicz <michal.kiedrowicz@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-04 16:06:07 -07:00
J Smith
84befcd0a4 grep: add a grep.patternType configuration setting
The grep.extendedRegexp configuration setting enables the -E flag on grep
by default but there are no equivalents for the -G, -F and -P flags.

Rather than adding an additional setting for grep.fooRegexp for current
and future pattern matching options, add a grep.patternType setting that
can accept appropriate values for modifying the default grep pattern
matching behavior. The current values are "basic", "extended", "fixed",
"perl" and "default" for setting -G, -E, -F, -P and the default behavior
respectively.

When grep.patternType is set to a value other than "default", the
grep.extendedRegexp setting is ignored. The value of "default" restores
the current default behavior, including the grep.extendedRegexp
behavior.

Signed-off-by: J Smith <dark.panda@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-03 09:58:02 -07:00
Michael G. Schwern
d2fd119c4f git-svn: introduce add_path_to_url function
Remove the ad-hoc versions.

This is mostly to normalize the process and ensure the URLs produced
don't have double slashes or anything.

Also provides a place to fix the corner case where a file path
contains a percent sign.

[ew: commit title]

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-08-02 21:46:03 +00:00
Michael G. Schwern
93c3fcbe4d git-svn: attempt to mimic SVN 1.7 URL canonicalization
Previously, our URL canonicalization didn't do much of anything.
Now it actually escapes and collapses slashes.  This is mostly a cut & paste
of escape_url from git-svn.

This is closer to how SVN 1.7's canonicalization behaves.  Doing it with
1.6 lets us chase down some problems caused by more effective canonicalization
without having to deal with all the other 1.7 issues on top of that.

* Remote URLs have to be canonicalized otherwise Git::SVN->find_existing_remote
  will think they're different.

* The SVN remote is now written to the git config canonicalized.  That
  should be ok.  Adjust a test to account for that.

[ew: commit title]

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-08-02 21:46:00 +00:00
Michael G. Schwern
1a35da0b5d t9107: fix typo
Test to check that the migration got rid of the old style git-svn directory.
It wasn't failing, just throwing a message to STDERR.

[ew: commit title]

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-08-02 21:45:59 +00:00
Michael G. Schwern
dad9090f89 t9118: workaround inconsistency between SVN versions
SVN 1.7 will truncate "not-a%40{0}" to just "not-a".

Rather than guess what SVN is going to do for each version, make the test use
the branch name that was actually created.

[ew: commit title]

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-08-02 21:45:58 +00:00
Michael G. Schwern
ca475a61f8 git-svn: add join_paths() to safely concatenate paths
Otherwise you might wind up with things like...

    my $path1 = undef;
    my $path2 = 'foo';
    my $path = $path1 . '/' . $path2;

creating '/foo'.  Or this...

    my $path1 = 'foo/';
    my $path2 = 'bar';
    my $path = $path1 . '/' . $path2;

creating 'foo//bar'.

Could have used File::Spec, but I'm shying away from it due to SVN
1.7's pickiness about paths.  Felt it would be better to have our own
we can control completely.

[ew: commit title]

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-08-02 21:44:04 +00:00
Michael G. Schwern
280ad88aa0 git-svn: factor out _collapse_dotdot function
The SVN API functions will not accept ../foo but their canonicalization
functions will not collapse it.  So we'll have to do it ourselves.

_collapse_dotdot() works better than the existing regex did.

This will be used shortly when canonicalize_path() starts using the
SVN API.

[ew: commit title]

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-08-02 21:43:58 +00:00
Thomas Rast
b622d4d11d send-email: improve RFC2047 quote parsing
The RFC2047 unquoting, used to parse email addresses in From and Cc
headers, is broken in several ways:

* It erroneously substitutes ' ' for '_' in *the whole* header, even
  outside the quoted field. [Noticed by Christoph.]

* It is too liberal in its matching, and happily matches the start
  of one quoted chunk against the end of another, or even just
  something that looks like such an end. [Noticed by Junio.]

* It fundamentally cannot cope with encodings that are not a
  superset of ASCII, nor several (incompatible) encodings in the
  same header.

This patch fixes the first two by doing a more careful decoding of
the outer quoting (e.g. "=AB" to represent an octet whose value is
0xAB).  Fixing the fundamental issues is left for a future, more
intrusive, patch.

Noticed-by: Christoph Miebach <christoph.miebach@web.de>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-31 15:05:53 -07:00
Junio C Hamano
5fe1484a9b Merge branch 'jx/i18n-1.7.11'
Add i18n support for scripted Porcelains, and mark strings in
merge(-recursive), am, and rebase for i18n.

* jx/i18n-1.7.11:
  i18n: merge-recursive: mark strings for translation
  Remove dead code which contains bad gettext block
  i18n: am: mark more strings for translation
  rebase: remove obsolete and unused LONG_USAGE which breaks xgettext
  i18n: Rewrite gettext messages start with dash
  i18n: rebase: mark messages for translation
  i18n: New keywords for xgettext extraction from sh
2012-07-31 09:41:52 -07:00
Junio C Hamano
2e3710bdf9 Merge branch 'kk/maint-commit-tree' into maint
"git commit-tree" learned a more natural "-p <parent> <tree>" order
of arguments long time ago, but recently forgot it by mistake.

* kk/maint-commit-tree:
  Revert "git-commit-tree(1): update synopsis"
  commit-tree: resurrect command line parsing updates
2012-07-30 13:05:13 -07:00
Junio C Hamano
70f6be7aa9 Merge branch 'jv/maint-no-ext-diff' into maint
"git diff --no-ext-diff" did not output anything for a typechange
filepair when GIT_EXTERNAL_DIFF is in effect.

* jv/maint-no-ext-diff:
  diff: test precedence of external diff drivers
  diff: correctly disable external_diff with --no-ext-diff
2012-07-30 13:04:59 -07:00
Junio C Hamano
8ba105dda8 Merge branch 'jl/maint-1.7.10-recurse-submodules-with-symlink' into maint
When "git submodule add" clones a submodule repository, it can get
confused where to store the resulting submodule repository in the
superproject's .git/ directory when there is a symbolic link in the
path to the current directory.

* jl/maint-1.7.10-recurse-submodules-with-symlink:
  submodules: don't stumble over symbolic links when cloning recursively
2012-07-30 13:04:18 -07:00
Junio C Hamano
80ffb7570f Merge branch 'jc/maint-filter-branch-epoch-date' into maint
In 1.7.9 era, we taught "git rebase" about the raw timestamp format
but we did not teach the same trick to "filter-branch", which rolled
a similar logic on its own.

* jc/maint-filter-branch-epoch-date:
  t7003: add test to filter a branch with a commit at epoch
  date.c: Fix off by one error in object-header date parsing
  filter-branch: do not forget the '@' prefix to force git-timestamp
2012-07-30 13:04:18 -07:00
Junio C Hamano
3e6d071747 Merge branch 'rj/maint-grep-remove-redundant-test'
"git grep" stopped spawning an external "grep" long time ago, but a
duplicated test to check internal and external "grep" was left
behind.

* rj/maint-grep-remove-redundant-test:
  t7810-*.sh: Remove redundant test
2012-07-30 12:56:42 -07:00
Junio C Hamano
8de8bb8051 Merge branch 'dg/submodule-in-dismembered-working-tree'
Finishing touches to the new test script.

* dg/submodule-in-dismembered-working-tree:
  t7409: make sure submodule is initialized and updated in more detail
2012-07-30 12:56:25 -07:00
Daniel Graña
95e7705310 t7409: make sure submodule is initialized and updated in more detail
The earlier test did not even make sure that the correct commit is
checked out in the submodule directory.  Inspect the result in a bit
more detail.

Signed-off-by: Daniel Graña <dangra@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-30 12:56:14 -07:00
Junio C Hamano
ad6a599c0a t7406: fix misleading "rev-parse --max-count=1 HEAD"
The test happened to use "rev-parse --max-count=1 HEAD" consistently
to prepare the expected output and the actual output, so the
comparison between them gave us a correct success/failure because
both output had irrelevant "--max-count=1" in it.

But that is not an excuse to keep it broken.  Replace it a more
meaningful construct "rev-parse --verify HEAD".

Noticed by Daniel Graña while working on his submodule tests.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-30 10:52:29 -07:00
Ramsay Jones
4ca945389f t7810-*.sh: Remove redundant test
Since commit bbc09c22 ("grep: rip out support for external grep",
12-01-2010), test number 60 ("grep -C1 hunk mark between files") is
essentially the same as test number 59.

Test 59 was intended to verify the behaviour of git-grep resulting
from multiple invocations of an external grep. As part of the test,
it creates and adds 1024 files to the index, which is now wasted
effort.

Remove test 59, since it is now redundant.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-29 18:08:50 -07:00
Ramsay Jones
425b8a22aa t1100-*.sh: Fix an intermittent test failure
In particular, the final test ('flags and then non flags') fails
intermittently, depending on how much time elapsed between the
invocations of "git commit-tree" when creating the commits which
later have their commit id's compared. For example, if the commits
for childid-3 and childid-4 are created 1 or more seconds apart,
then the commits, which would otherwise be identical, will have
different commit id's.

In order to make the test reproducible, we remove the variability
by setting the author and committer times to a well defined state.
We accomplish this with a single call to 'test_tick' at the start
of the test.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-29 18:07:47 -07:00
Jeff King
07a71b851a t: add missing executable bit to t7409
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-29 15:20:42 -07:00
Jeff King
c479d14a80 fsck: detect null sha1 in tree entries
Short of somebody happening to beat the 1 in 2^160 odds of
actually generating content that hashes to the null sha1, we
should never see this value in a tree entry. So let's have
fsck warn if it it seen.

As in the previous commit, we test both blob and submodule
entries to future-proof the test suite against the
implementation depending on connectivity to notice the
error.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-29 15:14:08 -07:00
Jeff King
4337b5856f do not write null sha1s to on-disk index
We should never need to write the null sha1 into an index
entry (short of the 1 in 2^160 chance that somebody actually
has content that hashes to it). If we attempt to do so, it
is much more likely that it is a bug, since we use the null
sha1 as a sentinel value to mean "not valid".

The presence of null sha1s in the index (which can come
from, among other things, "update-index --cacheinfo", or by
reading a corrupted tree) can cause problems for later
readers, because they cannot distinguish the literal null
sha1 from its use a sentinel value.  For example, "git
diff-files" on such an entry would make it appear as if it
is stat-dirty, and until recently, the diff code assumed
such an entry meant that we should be diffing a working tree
file rather than a blob.

Ideally, we would stop such entries from entering even our
in-core index. However, we do sometimes legitimately add
entries with null sha1s in order to represent these sentinel
situations; simply forbidding them in add_index_entry breaks
a lot of the existing code. However, we can at least make
sure that our in-core sentinel representation never makes it
to disk.

To be thorough, we will test an attempt to add both a blob
and a submodule entry. In the former case, we might run into
problems anyway because we will be missing the blob object.
But in the latter case, we do not enforce connectivity
across gitlink entries, making this our only point of
enforcement. The current implementation does not care which
type of entry we are seeing, but testing both cases helps
future-proof the test suite in case that changes.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-29 15:13:36 -07:00
Jeff King
e54501004a diff: do not use null sha1 as a sentinel value
The diff code represents paths using the diff_filespec
struct. This struct has a sha1 to represent the sha1 of the
content at that path, as well as a sha1_valid member which
indicates whether its sha1 field is actually useful. If
sha1_valid is not true, then the filespec represents a
working tree file (e.g., for the no-index case, or for when
the index is not up-to-date).

The diff_filespec is only used internally, though. At the
interfaces to the diff subsystem, callers feed the sha1
directly, and we create a diff_filespec from it. It's at
that point that we look at the sha1 and decide whether it is
valid or not; callers may pass the null sha1 as a sentinel
value to indicate that it is not.

We should not typically see the null sha1 coming from any
other source (e.g., in the index itself, or from a tree).
However, a corrupt tree might have a null sha1, which would
cause "diff --patch" to accidentally diff the working tree
version of a file instead of treating it as a blob.

This patch extends the edges of the diff interface to accept
a "sha1_valid" flag whenever we accept a sha1, and to use
that flag when creating a filespec. In some cases, this
means passing the flag through several layers, making the
code change larger than would be desirable.

One alternative would be to simply die() upon seeing
corrupted trees with null sha1s. However, this fix more
directly addresses the problem (while bogus sha1s in a tree
are probably a bad thing, it is really the sentinel
confusion sending us down the wrong code path that is what
makes it devastating). And it means that git is more capable
of examining and debugging these corrupted trees. For
example, you can still "diff --raw" such a tree to find out
when the bogus entry was introduced; you just cannot do a
"--patch" diff (just as you could not with any other
corrupted tree, as we do not have any content to diff).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-29 15:04:32 -07:00
Junio C Hamano
51e383dd08 Merge branch 'extract-remaining' of git://git.bogomips.org/git-svn
* 'extract-remaining' of git://git.bogomips.org/git-svn:
  Extract Git::SVN::GlobSpec from git-svn.
  Move Git::IndexInfo into its own file.
  Load all the modules in one place and before running code.
  Extract Git::SVN::Migration from git-svn.
  Prepare Git::SVN::Migration for extraction from git-svn.
  Extract Git::SVN::Log from git-svn.
  Prepare Git::SVN::Log for extraction from git-svn.
2012-07-27 21:48:27 -07:00
Junio C Hamano
646e417535 Merge git://git.bogomips.org/git-svn
* git://git.bogomips.org/git-svn:
  Move initialization of Git::SVN variables into Git::SVN.
  Extract Git::SVN from git-svn into its own .pm file.
  Prepare Git::SVN for extraction into its own file.
  Extract some utilities from git-svn to allow extracting Git::SVN.
  perl: detect new files in MakeMaker builds
  The Makefile.PL will now find .pm files itself.
  Don't lose Error.pm if $@ gets clobbered.
  Quiet warning if Makefile.PL is run with -w and no --localedir
2012-07-27 21:18:09 -07:00
Junio C Hamano
12688bbacf Merge branch 'jk/autoident-test'
Fix test breakages by a builder who does not have a valid user name
in his /etc/password entry.

* jk/autoident-test:
  t7502: test early quit from commit with bad ident
  t7502: handle systems where auto-identity is broken
  t7502: drop confusing test_might_fail call
  t7502: narrow checks for author/committer name in template
  t7502: properly quote GIT_EDITOR
  t7502: clean up fake_editor tests
2012-07-27 21:17:00 -07:00
Junio C Hamano
a64fe6c1d5 Merge branch 'dg/submodule-in-dismembered-working-tree'
In a superproject that has repository outside of its working tree,
"git submodule add" failed to clone a new submodule, as GIT_DIR and
GIT_WORK_TREE environment variables necessary to work in such a
superproject interfered with access to the submodule repository.

* dg/submodule-in-dismembered-working-tree:
  git-submodule: work with GIT_DIR/GIT_WORK_TREE
2012-07-27 21:13:46 -07:00