Commit Graph

5765 Commits

Author SHA1 Message Date
Junio C Hamano
5127a074b5 Merge branch 'cb/maint-ls-files-error-report'
* cb/maint-ls-files-error-report:
  t3005: do not assume a particular order of stdout and stderr of git-ls-files
2011-09-06 11:42:55 -07:00
Junio C Hamano
4b1108eec7 Merge branch 'mh/check-ref-format-print-normalize'
* mh/check-ref-format-print-normalize:
  Forbid DEL characters in reference names
  check-ref-format --print: Normalize refnames that start with slashes
2011-09-06 11:42:52 -07:00
Junio C Hamano
b10a53583f test: fetch/receive with fsckobjects
Add tests for the new fetch.fsckobjects, and also tests for
receive.fsckobjects we have had for quite some time.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-04 18:19:36 -07:00
Junio C Hamano
57c081046c Merge branch 'tr/maint-t3903-misquoted-command'
* tr/maint-t3903-misquoted-command:
  t3903: fix misquoted rev-parse invocation
2011-09-02 13:18:39 -07:00
Junio C Hamano
8e969454e1 Merge branch 'bc/bisect-test-use-shell-path'
* bc/bisect-test-use-shell-path:
  t6030: use $SHELL_PATH to invoke user's preferred shell instead of bare sh
2011-09-02 13:18:37 -07:00
Junio C Hamano
80ade02e46 Merge branch 'va/p4-branch-import-test-update'
* va/p4-branch-import-test-update:
  git-p4: simple branch tests edits
2011-09-02 13:18:33 -07:00
Junio C Hamano
c14bd20931 Merge branch 'tr/maint-format-patch-empty-output'
* tr/maint-format-patch-empty-output:
  Document negated forms of format-patch --to --cc --add-headers
  t4014: "no-add-headers" is actually called "no-add-header"
  t4014: invoke format-patch with --stdout where intended
  t4014: check for empty files from git format-patch --stdout
2011-09-02 13:18:22 -07:00
Junio C Hamano
b43b8a20d3 Merge branch 'bg/t5540-osx-grep'
* bg/t5540-osx-grep:
  t5540-http-test: shorten grep pattern
2011-09-02 13:17:50 -07:00
Junio C Hamano
c63750abc3 Merge branch 'fg/submodule-ff-check-before-push'
* fg/submodule-ff-check-before-push:
  push: Don't push a repository with unpushed submodules
2011-09-02 13:07:58 -07:00
Junio C Hamano
8a8895baaf Merge branch 'fk/use-kwset-pickaxe-grep-f'
* fk/use-kwset-pickaxe-grep-f:
  obstack: Fix portability issues
  Use kwset in grep
  Use kwset in pickaxe
  Adapt the kwset code to Git
  Add string search routines from GNU grep
  Add obstack.[ch] from EGLIBC 2.10
2011-09-02 10:00:38 -07:00
Junio C Hamano
96b7c4deb8 Merge branch 'en/merge-recursive-2'
* en/merge-recursive-2: (57 commits)
  merge-recursive: Don't re-sort a list whose order we depend upon
  merge-recursive: Fix virtual merge base for rename/rename(1to2)/add-dest
  t6036: criss-cross + rename/rename(1to2)/add-dest + simple modify
  merge-recursive: Avoid unnecessary file rewrites
  t6022: Additional tests checking for unnecessary updates of files
  merge-recursive: Fix spurious 'refusing to lose untracked file...' messages
  t6022: Add testcase for spurious "refusing to lose untracked" messages
  t3030: fix accidental success in symlink rename
  merge-recursive: Fix working copy handling for rename/rename/add/add
  merge-recursive: add handling for rename/rename/add-dest/add-dest
  merge-recursive: Have conflict_rename_delete reuse modify/delete code
  merge-recursive: Make modify/delete handling code reusable
  merge-recursive: Consider modifications in rename/rename(2to1) conflicts
  merge-recursive: Create function for merging with branchname:file markers
  merge-recursive: Record more data needed for merging with dual renames
  merge-recursive: Defer rename/rename(2to1) handling until process_entry
  merge-recursive: Small cleanups for conflict_rename_rename_1to2
  merge-recursive: Fix rename/rename(1to2) resolution for virtual merge base
  merge-recursive: Introduce a merge_file convenience function
  merge-recursive: Fix modify/delete resolution in the recursive case
  ...
2011-09-02 10:00:18 -07:00
Bryan Jacobs
98c4ab32f8 git-svn: Teach dcommit --mergeinfo to handle multiple lines
"svn dcommit --mergeinfo" replaces the svn:mergeinfo property in an
upstream SVN repository with the given text. The svn:mergeinfo
property may contain commits originating on multiple branches,
separated by newlines.

Cause space characters in the mergeinfo to be replaced by newlines,
allowing a user to create history representing multiple branches being
merged into one.

Update the corresponding documentation and add a test for the new
functionality.

Signed-off-by: Bryan Jacobs <bjacobs@woti.com>
Acked-by: Sam Vilain <sam@vilain.net>
Acked-by: Eric Wong <normalperson@yhbt.net>
2011-09-01 19:55:09 +00:00
Ray Chen
40a1530c07 git-svn: New flag to emulate empty directories
Adds a --preserve-empty-dirs flag to the clone operation that will detect
empty directories in the remote Subversion repository and create placeholder
files in the corresponding local Git directories.  This allows "empty"
directories to exist in the history of a Git repository.

Also adds the --placeholder-file flag to control the name of any placeholder
files created.  Default value is ".gitignore".

Signed-off-by: Ray Chen <rchen@cs.umd.edu>
Acked-by: Eric Wong <normalperson@yhbt.net>
2011-09-01 07:10:22 +00:00
Brandon Casey
381f0d3bd9 t6030: use $SHELL_PATH to invoke user's preferred shell instead of bare sh
Some platforms (IRIX, Solaris) provide an ancient /bin/sh which chokes on
modern shell syntax like $().  SHELL_PATH is provided to allow the user to
specify a working sh, let's use it here.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-30 17:07:09 -07:00
Thomas Rast
ee0d7bf925 Symlink mergetools scriptlets into valgrind wrappers
Since bc7a96a (mergetool--lib: Refactor tools into separate files,
2011-08-18) the mergetools and difftools related tests fail under
--valgrind because the mergetools/* scriptlets are not in the exec
path.

For now, symlink the mergetools subdir into the t/valgrind/bin
directory as a whole, since it does not contain anything of interest
to the valgrind wrappers.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-30 12:27:01 -07:00
Thomas Rast
1ae9644410 t3903: fix misquoted rev-parse invocation
!"git ..." hopefully always succeeds because "git ..." is not the name
of any executable.  However, that's not what was intended.  Unquote
it, and while we're at it, also replace ! with test_must_fail since it
is a call to git.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Acked-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-30 10:06:19 -07:00
Thomas Rast
688f4f2fbc t4014: "no-add-headers" is actually called "no-add-header"
Since c426003 (format-patch: add --no-cc, --no-to, and
--no-add-headers, 2010-03-07) the tests have checked for an option
called --no-add-headers introduced by letting the user negate
--add-header.

However, the parseopt machinery does not automatically pluralize
anything, so it is in fact called --no-add-header.

Since the option never worked, is not documented anywhere, and
implementing an actual --no-add-headers would lead to silly code
complications, we just adapt the test to the code.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-29 15:27:05 -07:00
Thomas Rast
2fdb5c6219 t4014: invoke format-patch with --stdout where intended
The test wrote something along the lines of 0001-foo.patch to output,
which of course never contained a signature.  Luckily the tested
behaviour is actually present.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-29 15:27:04 -07:00
Thomas Rast
cc663d141a t4014: check for empty files from git format-patch --stdout
Most kinds of failure in 'git format-patch --stdout >output' will
result in an empty 'output'.  This slips past checks that only verify
absence of output, such as the '! grep ...' that are quite prevalent
in t4014.

Introduce a helper check_patch() that checks that at least From, Date
and Subject are present, thus making sure it looks vaguely like a
patch (or cover letter) email.  Then insert calls to it in all tests
that do have positive checks for content.

This makes two of the tests fail.  Mark them as such; they'll be
fixed in a moment.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-29 15:27:01 -07:00
Pete Wyckoff
9aa7c16f5e git-p4: simple branch tests edits
More review comments.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Vitor Antunes <vitor.hda@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-29 09:49:42 -07:00
Brian Gernhardt
f6918da789 t5540-http-test: shorten grep pattern
On OS X, the grep pattern

    "\"OP .*/objects/$x2/X38_X40 HTTP/[.0-9]*\" 20[0-9] "

is too long ($x38 and $x40 represent 38 and 40 copies of [0-9a-f]) for
grep to handle.  In order to still be able to match this, use the sed
invocation to replace what we're looking for with a token.

Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Brian Gernhardt <brian@gernhardtsoftware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-28 23:50:04 -07:00
Michael J Gruber
d8d33736b5 branch: allow pattern arguments
Allow pattern arguments for the list mode just like for git tag -l.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-28 22:58:00 -07:00
Michael J Gruber
cddd127b9a branch: introduce --list option
Currently, there is no way to invoke the list mode explicitly, without
giving -v to force verbose output.

Introduce a --list option which invokes the list mode. This will be
beneficial for invoking list mode with pattern matching, which otherwise
would be interpreted as branch creation.

Along with --list, test also combinations of existing options.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-28 22:56:05 -07:00
Johannes Sixt
385ceec1cb t3005: do not assume a particular order of stdout and stderr of git-ls-files
There is no guarantee that stderr is flushed before stdout when both
channels are redirected to a file. Check the channels using independent
files.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-28 22:19:27 -07:00
Junio C Hamano
2730f55527 Merge branch 'nd/maint-clone-gitdir'
* nd/maint-clone-gitdir:
  clone: allow to clone from .git file
  read_gitfile_gently(): rename misnamed function to read_gitfile()
2011-08-28 21:20:28 -07:00
Junio C Hamano
1da6d98a9a Merge branch 'ci/forbid-unwanted-current-branch-update'
* ci/forbid-unwanted-current-branch-update:
  Show interpreted branch name in error messages
  Prevent force-updating of the current branch
2011-08-28 21:19:31 -07:00
Junio C Hamano
67c116bb26 Merge branch 'jk/pager-with-external-command'
* jk/pager-with-external-command:
  support pager.* for external commands
2011-08-28 21:19:25 -07:00
Junio C Hamano
2478bd8318 Merge branch 'jc/maint-clone-alternates'
* jc/maint-clone-alternates:
  clone: clone from a repository with relative alternates
  clone: allow more than one --reference

Conflicts:
	builtin/clone.c
2011-08-28 21:19:21 -07:00
Junio C Hamano
f946b465d7 Merge branch 'jk/color-and-pager'
* jk/color-and-pager:
  want_color: automatically fallback to color.ui
  diff: don't load color config in plumbing
  config: refactor get_colorbool function
  color: delay auto-color decision until point of use
  git_config_colorbool: refactor stdout_is_tty handling
  diff: refactor COLOR_DIFF from a flag into an int
  setup_pager: set GIT_PAGER_IN_USE
  t7006: use test_config helpers
  test-lib: add helper functions for config
  t7006: modernize calls to unset

Conflicts:
	builtin/commit.c
	parse-options.c
2011-08-28 21:19:16 -07:00
Junio C Hamano
0dc691a4f3 Merge branch 'di/fast-import-tagging'
* di/fast-import-tagging:
  fast-import: allow to tag newly created objects
  fast-import: add tests for tagging blobs
2011-08-28 21:18:48 -07:00
Junio C Hamano
45792b64c1 Merge branch 'di/fast-import-deltified-tree'
* di/fast-import-deltified-tree:
  fast-import: prevent producing bad delta
  fast-import: add a test for tree delta base corruption
2011-08-28 21:18:47 -07:00
Junio C Hamano
0b98954975 Merge branch 'di/fast-import-ident'
* di/fast-import-ident:
  fsck: improve committer/author check
  fsck: add a few committer name tests
  fast-import: check committer name more strictly
  fast-import: don't fail on omitted committer name
  fast-import: add input format tests
2011-08-28 21:18:47 -07:00
Junio C Hamano
cfd2f0f558 Merge branch 'va/p4-branch-import'
* va/p4-branch-import:
  git-p4: Add simple test case for branch import
  git-p4: Allow branch definition with git config
  git-p4: Allow filtering Perforce branches by user
  git-p4: Correct branch base depot path detection
  git-p4: Process detectCopiesHarder with --bool
  git-p4: Add test case for copy detection
  git-p4: Add test case for rename detection
  git-p4: Add description of rename/copy detection options
  git-p4: Allow setting rename/copy detection threshold
2011-08-28 21:15:34 -07:00
Michael Haggerty
f3738c1ce9 Forbid DEL characters in reference names
DEL is an ASCII control character and therefore should not be
permitted in reference names.  Add tests for this and other unusual
characters.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-27 11:47:49 -07:00
Brandon Casey
7474b8b452 git-stash: remove untracked/ignored directories when stashed
The two new stash options --include-untracked and --all do not remove the
untracked and/or ignored files that are stashed if those files reside in
a subdirectory. e.g. the following sequence fails:

   mkdir untracked &&
   echo hello >untracked/file.txt &&
   git stash --include-untracked &&
   test ! -f untracked/file.txt

Within the git-stash script, git-clean is used to remove the
untracked/ignored files, but since the -d option was not supplied, it does
not remove directories.

So, add -d to the git-clean arguments, and update the tests to test this
functionality.

Reported-by: Hilco Wijbenga <hilco.wijbenga@gmail.com>
Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-27 11:12:18 -07:00
Brandon Casey
c995ef49e2 t/t3905: add missing '&&' linkage
Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-27 11:12:15 -07:00
Brandon Casey
4fd7312409 t/t3905: use the name 'actual' for test output, swap arguments to test_cmp
It is common practice in the git test suite to use the file names 'actual'
and 'expect' to hold the actual and expected output of commands.  So change
the name 'output' to 'actual'.

Additionally, swap the order of arguments to test_cmp when comparing
expected output and actual output so that if diff output is produced, it
describes how the actual output differs from what was expected rather than
the other way around.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-27 11:12:08 -07:00
Matthieu Moy
ffaaed88ae rebase -i: clean error message for --continue after failed exec
After an "exec false" stops the rebase and gives the control back to
the user, if changes are added to the index, "rebase --continue" fails
with this message, which may technically be correct, but does not point
at the real problem:

.../git-rebase--interactive: line 774: .../.git/rebase-merge/author-script: No such file or directory

We could try auto-amending HEAD, but this goes against the logic of
.git/rebase-merge/author-script (see also the testcase 'auto-amend only
edited commits after "edit"' in t3404-rebase-interactive.sh) to
auto-amend something the user hasn't explicitely asked to edit.

Instead of doing anything automatically, detect the situation and give a
clean error message. While we're there, also clarify the error message in
case '. "$author_script"' fails, which now corresponds to really weird
senario where the author script exists but can't be read.

Test-case-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-26 14:57:09 -07:00
Michael J Gruber
afc1692fef t6040: test branch -vv
t6040 has a test for 'git branch -v' but not for 'git branch -vv'.
Add one.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-26 10:45:04 -07:00
Junio C Hamano
c3502fa882 revision: do not include sibling history in --ancestry-path output
If the commit specified as the bottom of the commit range has a direct
parent that has another child commit that contributed to the resulting
history, "rev-list --ancestry-path" was confused and listed that side
history as well, due to the command line parser subtlety corrected by the
previous commit.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-25 19:40:51 -07:00
Brad King
81f4953120 rev-list: Demonstrate breakage with --ancestry-path --all
The option added by commit ebdc94f3 (revision: --ancestry-path,
2010-04-20) does not work properly in combination with --all, at least
in the case of a criss-cross merge:

    b---bc
   / \ /
  a   X
   \ / \
    c---cb

There are no descendants of 'cb' in the history.  The command

  git rev-list --ancestry-path cb..bc

correctly reports no commits.  However, the command

  git rev-list --ancestry-path --all ^cb

reports 'bc'.  Add a test case to t6019-rev-list-ancestry-path
demonstrating this breakage.

Signed-off-by: Brad King <brad.king@kitware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-25 16:40:48 -07:00
Junio C Hamano
284daf2902 Merge branch 'jc/merge-reword'
* jc/merge-reword:
  merge: reword the final message
2011-08-25 16:00:53 -07:00
Junio C Hamano
b0578c9abe Merge branch 'mg/branch-set-upstream-previous'
* mg/branch-set-upstream-previous:
  branch.c: use the parsed branch name
2011-08-25 16:00:49 -07:00
Junio C Hamano
1d21112a94 Merge branch 'di/fast-import-doc'
* di/fast-import-doc:
  doc/fast-import: document feature import-marks-if-exists
2011-08-25 16:00:32 -07:00
Junio C Hamano
7abd8fb36d Merge branch 'jn/plug-empty-tree-leak'
* jn/plug-empty-tree-leak:
  merge-recursive: take advantage of hardcoded empty tree
  revert: plug memory leak in "cherry-pick root commit" codepath
2011-08-25 16:00:29 -07:00
Michael Haggerty
2f633f41d6 check-ref-format --print: Normalize refnames that start with slashes
When asked if "refs///heads/master" is valid, check-ref-format says "Yes,
it is well formed", and when asked to print canonical form, it shows
"refs/heads/master". This is so that it can be tucked after "$GIT_DIR/"
to form a valid pathname for a loose ref, and we normalize a pathname like
"$GIT_DIR/refs///heads/master" to de-dup the slashes in it.

Similarly, when asked if "/refs/heads/master" is valid, check-ref-format
says "Yes, it is Ok", but the leading slash is not removed when printing,
leading to "$GIT_DIR//refs/heads/master".

Fix it to make sure such leading slashes are removed.  Add tests that such
refnames are accepted and normalized correctly.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-25 13:39:38 -07:00
Junio C Hamano
6fcb384869 Merge branch 'rt/zlib-smaller-window'
* rt/zlib-smaller-window:
  test: consolidate definition of $LF
  Tolerate zlib deflation with window size < 32Kb
2011-08-23 15:40:33 -07:00
Junio C Hamano
52457205a2 Merge branch 'jn/maint-test-return'
* jn/maint-test-return:
  t3900: do not reference numbered arguments from the test script
  test: cope better with use of return for errors
  test: simplify return value of test_run_
2011-08-23 15:35:26 -07:00
Junio C Hamano
6133e4da54 Merge branch 'cb/maint-ls-files-error-report'
* cb/maint-ls-files-error-report:
  ls-files: fix pathspec display on error
2011-08-23 15:34:31 -07:00
Junio C Hamano
02c2c60e2a Merge branch 'jc/no-gitweb-test-without-cgi-etc' into maint
* jc/no-gitweb-test-without-cgi-etc:
  t/gitweb-lib.sh: skip gitweb tests when perl dependencies are not met
2011-08-23 15:17:14 -07:00
Dmitry Ivankov
6c447f633c fast-import: allow to tag newly created objects
fast-import allows to tag objects by sha1 and to query sha1 of objects
being imported. So it should allow to tag these objects, make it do so.

Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-23 11:25:59 -07:00
Dmitry Ivankov
2efe38e7da fast-import: add tests for tagging blobs
fast-import allows to create an annotated tag that annotates a blob,
via mark or direct sha1 specification.

For mark it works, for sha1 it tries to read the object. It tries to
do so via read_sha1_file, and then checks the size to be at least 46.

That's weird, let's just allow to (annotated) tag any object referenced
by sha1. If the object originates from our packfile, we still fail though.

Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-23 11:25:56 -07:00
Junio C Hamano
e6baf4a1ae clone: clone from a repository with relative alternates
Cloning from a local repository blindly copies or hardlinks all the files
under objects/ hierarchy. This results in two issues:

 - If the repository cloned has an "objects/info/alternates" file, and the
   command line of clone specifies --reference, the ones specified on the
   command line get overwritten by the copy from the original repository.

 - An entry in a "objects/info/alternates" file can specify the object
   stores it borrows objects from as a path relative to the "objects/"
   directory. When cloning a repository with such an alternates file, if
   the new repository is not sitting next to the original repository, such
   relative paths needs to be adjusted so that they can be used in the new
   repository.

This updates add_to_alternates_file() to take the path to the alternate
object store, including the "/objects" part at the end (earlier, it was
taking the path to $GIT_DIR and was adding "/objects" itself), as it is
technically possible to specify in objects/info/alternates file the path
of a directory whose name does not end with "/objects".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-23 09:56:14 -07:00
Vitor Antunes
7ca97f6ecc git-p4: Add simple test case for branch import
Create a basic branch structure in P4 and clone it with git-p4.
Also, make an update on P4 side and check if git-p4 imports it correctly.
The branch structure is created in such a way that git-p4 will fail to import
updates if patch "git-p4: Correct branch base depot path detection" is not
applied.

Signed-off-by: Vitor Antunes <vitor.hda@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22 21:09:05 -07:00
Fredrik Gustafsson
501770e1bb Move git-dir for submodules
Move git-dir for submodules into $GIT_DIR/modules/[name_of_submodule] of
the superproject. This is a step towards being able to delete submodule
directories without loosing the information from their .git directory
as that is now stored outside the submodules work tree.

This is done relying on the already existent .git-file functionality.
When adding or updating a submodule whose git directory is found under
$GIT_DIR/modules/[name_of_submodule], don't clone it again but simply
point the .git-file to it and remove the now stale index file from it.
The index will be recreated by the following checkout.

This patch will not affect already cloned submodules at all.

Tests that rely on .git being a directory have been fixed.

Signed-off-by: Fredrik Gustafsson <iveqy@iveqy.com>
Mentored-by: Jens Lehmann <Jens.Lehmann@web.de>
Mentored-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22 21:03:38 -07:00
Junio C Hamano
dbc92b072d clone: allow more than one --reference
Also add a test to expose a long-standing bug that is triggered when
cloning with --reference option from a local repository that has its own
alternates. The alternate object stores specified on the command line
are lost, and only alternates copied from the source repository remain.
The bug will be fixed in the next patch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22 18:57:20 -07:00
Conrad Irwin
587a9ee7da Show interpreted branch name in error messages
Change the error message when doing: "git branch @{-1}",
"git checkout -b @{-1}", or "git branch -m foo @{-1}"

 * was: A branch named '@{-1}' already exists.
 * now: A branch named 'bar' already exists.

Signed-off-by: Conrad Irwin <conrad.irwin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22 16:03:43 -07:00
Conrad Irwin
55c4a67307 Prevent force-updating of the current branch
"git branch -M <foo> <current-branch>" allows updating the current branch
which HEAD points, without the necessary house-keeping that git reset
normally does to make this operation sensible. It also leaves the reflog
in a confusing state (you would be warned when trying to read it).

"git checkout -B <current branch> <foo>" is also partly vulnerable to this
bug; due to inconsistent pre-flight checks it would perform half of its
task and then abort just before rewriting the branch. Again this
manifested itself as the index file getting out-of-sync with HEAD.

"git branch -f" already guarded against this problem, and aborts with
a fatal error.

Update "git branch -M", "git checkout -B" and "git branch -f" to share the
same check before allowing a branch to be created. These prevent you from
updating the current branch.

We considered suggesting the use of "git reset" in the failure message
but concluded that it was not possible to discern what the user was
actually trying to do.

Signed-off-by: Conrad Irwin <conrad.irwin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22 16:00:36 -07:00
Nguyễn Thái Ngọc Duy
9b0ebc722c clone: allow to clone from .git file
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22 14:20:11 -07:00
Vitor Antunes
c5cd4ef0fd git-p4: Add test case for copy detection
Signed-off-by: Vitor Antunes <vitor.hda@gmail.com>
Acked-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22 11:50:38 -07:00
Vitor Antunes
52dced8a56 git-p4: Add test case for rename detection
Signed-off-by: Vitor Antunes <vitor.hda@gmail.com>
Acked-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22 11:50:31 -07:00
Fredrik Gustafsson
d2b17b3220 push: Don't push a repository with unpushed submodules
When working with submodules it is easy to forget to push a
submodule to the server but pushing a super-project that
contains a commit for that submodule. The result is that the
superproject points at a submodule commit that is not available
on the server.

This adds the option --recurse-submodules=check to push. When
using this option git will check that all submodule commits that
are about to be pushed are present on a remote of the submodule.

To be able to use a combined diff, disabling a diff callback has
been removed from combined-diff.c.

Signed-off-by: Fredrik Gustafsson <iveqy@iveqy.com>
Mentored-by: Jens Lehmann <Jens.Lehmann@web.de>
Mentored-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-20 23:03:52 -07:00
Fredrik Kuivinen
9eceddeec6 Use kwset in grep
Benchmarks for the hot cache case:

before:
$ perf stat --repeat=5 git grep qwerty > /dev/null

Performance counter stats for 'git grep qwerty' (5 runs):

        3,478,085 cache-misses             #      2.322 M/sec   ( +-   2.690% )
       11,356,177 cache-references         #      7.582 M/sec   ( +-   2.598% )
        3,872,184 branch-misses            #      0.363 %       ( +-   0.258% )
    1,067,367,848 branches                 #    712.673 M/sec   ( +-   2.622% )
    3,828,370,782 instructions             #      0.947 IPC     ( +-   0.033% )
    4,043,832,831 cycles                   #   2700.037 M/sec   ( +-   0.167% )
            8,518 page-faults              #      0.006 M/sec   ( +-   3.648% )
              847 CPU-migrations           #      0.001 M/sec   ( +-   3.262% )
            6,546 context-switches         #      0.004 M/sec   ( +-   2.292% )
      1497.695495 task-clock-msecs         #      3.303 CPUs    ( +-   2.550% )

       0.453394396  seconds time elapsed   ( +-   0.912% )

after:
$ perf stat --repeat=5 git grep qwerty > /dev/null

Performance counter stats for 'git grep qwerty' (5 runs):

        2,989,918 cache-misses             #      3.166 M/sec   ( +-   5.013% )
       10,986,041 cache-references         #     11.633 M/sec   ( +-   4.899% )  (scaled from 95.06%)
        3,511,993 branch-misses            #      1.422 %       ( +-   0.785% )
      246,893,561 branches                 #    261.433 M/sec   ( +-   3.967% )
    1,392,727,757 instructions             #      0.564 IPC     ( +-   0.040% )
    2,468,142,397 cycles                   #   2613.494 M/sec   ( +-   0.110% )
            7,747 page-faults              #      0.008 M/sec   ( +-   3.995% )
              897 CPU-migrations           #      0.001 M/sec   ( +-   2.383% )
            6,535 context-switches         #      0.007 M/sec   ( +-   1.993% )
       944.384228 task-clock-msecs         #      3.177 CPUs    ( +-   0.268% )

       0.297257643  seconds time elapsed   ( +-   0.450% )

So we gain about 35% by using the kwset code.

As a side effect of using kwset two grep tests are fixed by this
patch. The first is fixed because kwset can deal with case-insensitive
search containing NULs, something strcasestr cannot do. The second one
is fixed because we consider patterns containing NULs as fixed strings
(regcomp cannot accept patterns with NULs).

Signed-off-by: Fredrik Kuivinen <frekui@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-20 22:33:58 -07:00
Jeff King
92058e4d3e support pager.* for external commands
Without this patch, any commands that are not builtin would
not respect pager.* config. For example:

  git config pager.stash false
  git stash list

would still use a pager. With this patch, pager.stash now
has an effect. If it is not specified, we will still fall
back to pager.log when we invoke "log" from "stash list".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-19 15:52:25 -07:00
Jeff King
daa0c3d971 color: delay auto-color decision until point of use
When we read a color value either from a config file or from
the command line, we use git_config_colorbool to convert it
from the tristate always/never/auto into a single yes/no
boolean value.

This has some timing implications with respect to starting
a pager.

If we start (or decide not to start) the pager before
checking the colorbool, everything is fine. Either isatty(1)
will give us the right information, or we will properly
check for pager_in_use().

However, if we decide to start a pager after we have checked
the colorbool, things are not so simple. If stdout is a tty,
then we will have already decided to use color. However, the
user may also have configured color.pager not to use color
with the pager. In this case, we need to actually turn off
color. Unfortunately, the pager code has no idea which color
variables were turned on (and there are many of them
throughout the code, and they may even have been manipulated
after the colorbool selection by something like "--color" on
the command line).

This bug can be seen any time a pager is started after
config and command line options are checked. This has
affected "git diff" since 89d07f7 (diff: don't run pager if
user asked for a diff style exit code, 2007-08-12). It has
also affect the log family since 1fda91b (Fix 'git log'
early pager startup error case, 2010-08-24).

This patch splits the notion of parsing a colorbool and
actually checking the configuration. The "use_color"
variables now have an additional possible value,
GIT_COLOR_AUTO. Users of the variable should use the new
"want_color()" wrapper, which will lazily determine and
cache the auto-color decision.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-19 15:51:34 -07:00
Michael J Gruber
e9d4f7405b branch.c: use the parsed branch name
When setting up tracking info, branch.c uses the given branch specifier
("name"). Use the parsed name ("ref.buf") instead so that

git branch --set-upstream @{-1} foo

sets up tracking info for the previous branch rather than for a branch
named "@{-1}".

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-19 11:01:36 -07:00
Junio C Hamano
beace29a04 Merge branch 'db/am-skip-blank-at-the-beginning'
* db/am-skip-blank-at-the-beginning:
  am: ignore leading whitespace before patch
2011-08-18 22:07:57 -07:00
Jeff King
2e6c012e10 setup_pager: set GIT_PAGER_IN_USE
We have always set a global "spawned_pager" variable when we
start the pager. This lets us make the auto-color decision
later in the program as as "we are outputting to a terminal,
or to a pager which can handle colors".

Commit 6e9af86 added support for the GIT_PAGER_IN_USE
environment variable. An external program calling git (e.g.,
git-svn) could set this variable to indicate that it had
already started the pager, and that the decision about
auto-coloring should take that into account.

However, 6e9af86 failed to do the reverse, which is to tell
external programs when git itself has started the pager.
Thus a git command implemented as an external script that
has the pager turned on (e.g., "git -p stash show") would
not realize it was going to a pager, and would suppress
colors.

This patch remedies that; we always set GIT_PAGER_IN_USE
when we start the pager, and the value is respected by both
this program and any spawned children.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-18 14:17:12 -07:00
Jeff King
8d68a6d593 t7006: use test_config helpers
In some cases, this is just making the test script a little
shorter and easier to read. However, there are several
places where we didn't take proper precautions against
polluting downstream tests with our config; this fixes them,
too.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-18 14:12:46 -07:00
Jeff King
d960c47a88 test-lib: add helper functions for config
There are a few common tasks when working with configuration
variables in tests; this patch aims to make them a little
easier to write and less error-prone.

When setting a variable, you should typically make sure to
clean it up after the test is finished, so as not to pollute
other tests. Like:

   test_when_finished 'git config --unset foo.bar' &&
   git config foo.bar baz

This patch lets you just write:

  test_config foo.bar baz

When clearing a variable that does not exist, git-config
will report a specific non-zero error code. Meaning that
tests which call "git config --unset" often either rely on
the prior tests having actually set it, or must use
test_might_fail. With this patch, the previous:

  test_might_fail git config --unset foo.bar

becomes:

  test_unconfig foo.bar

Not only is this easier to type, but it is more robust; it
will correctly detect errors from git-config besides "key
was not set".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-18 14:08:54 -07:00
Jeff King
212ad94420 t7006: modernize calls to unset
These tests break &&-chaining to deal with broken "unset"
implementations. Instead, they should just use sane_unset.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-18 14:01:48 -07:00
Junio C Hamano
324b6b1678 Merge branch 'mh/check-attr-relative'
* mh/check-attr-relative: (29 commits)
  test-path-utils: Add subcommand "prefix_path"
  test-path-utils: Add subcommand "absolute_path"
  git-check-attr: Normalize paths
  git-check-attr: Demonstrate problems with relative paths
  git-check-attr: Demonstrate problems with unnormalized paths
  git-check-attr: test that no output is written to stderr
  Rename git_checkattr() to git_check_attr()
  git-check-attr: Fix command-line handling to match docs
  git-check-attr: Drive two tests using the same raw data
  git-check-attr: Add an --all option to show all attributes
  git-check-attr: Error out if no pathnames are specified
  git-check-attr: Process command-line args more systematically
  git-check-attr: Handle each error separately
  git-check-attr: Extract a function error_with_usage()
  git-check-attr: Introduce a new variable
  git-check-attr: Extract a function output_attr()
  Allow querying all attributes on a file
  Remove redundant check
  Remove redundant call to bootstrap_attr_stack()
  Extract a function collect_all_attrs()
  ...
2011-08-17 17:36:22 -07:00
Junio C Hamano
da68bf3376 Merge branch 'js/bisect-no-checkout'
* js/bisect-no-checkout:
  bisect: add support for bisecting bare repositories
  bisect: further style nitpicks
  bisect: replace "; then" with "\n<tab>*then"
  bisect: cleanup whitespace errors in git-bisect.sh.
  bisect: add documentation for --no-checkout option.
  bisect: add tests for the --no-checkout option.
  bisect: introduce --no-checkout support into porcelain.
  bisect: introduce support for --no-checkout option.
  bisect: add tests to document expected behaviour in presence of broken trees.
  bisect: use && to connect statements that are deferred with eval.
  bisect: move argument parsing before state modification.
2011-08-17 17:36:09 -07:00
Junio C Hamano
ca01600306 Merge branch 'rc/histogram-diff'
* rc/histogram-diff:
  xdiff/xhistogram: drop need for additional variable
  xdiff/xhistogram: rely on xdl_trim_ends()
  xdiff/xhistogram: rework handling of recursed results
  xdiff: do away with xdl_mmfile_next()
  Make test number unique
  xdiff/xprepare: use a smaller sample size for histogram diff
  xdiff/xprepare: skip classification
  teach --histogram to diff
  t4033-diff-patience: factor out tests
  xdiff/xpatience: factor out fall-back-diff function
  xdiff/xprepare: refactor abort cleanups
  xdiff/xprepare: use memset()
2011-08-17 17:36:06 -07:00
Junio C Hamano
6ed547b53b Merge branch 'js/ref-namespaces'
* js/ref-namespaces:
  ref namespaces: tests
  ref namespaces: documentation
  ref namespaces: Support remote repositories via upload-pack and receive-pack
  ref namespaces: infrastructure
  Fix prefix handling in ref iteration functions
2011-08-17 17:35:38 -07:00
Dmitry Ivankov
3beb4fc461 doc/fast-import: document feature import-marks-if-exists
fast-import command-line option --import-marks-if-exists was introduced
in commit dded4f1 (fast-import: Introduce --import-marks-if-exists, 2011-01-15)

--import-marks option can be set via a "feature" command in a fast-import
stream and --import-marks-if-exists had support for such specification
from the very beginning too due to some shared codebase. Though the
documentation for this feature wasn't written in dded4f1.

Add the documentation for "feature import-marks-if-exists=<file>". Also add
a minimalistic test for it.

Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-17 16:51:49 -07:00
Junio C Hamano
1f2705e20f Merge branch 'jk/tag-list-multiple-patterns' into maint
* jk/tag-list-multiple-patterns:
  tag: accept multiple patterns for --list
2011-08-16 12:41:14 -07:00
Junio C Hamano
1320352501 Merge branch 'jl/submodule-update-quiet' into maint
* jl/submodule-update-quiet:
  submodule: update and add must honor --quiet flag
2011-08-16 12:41:14 -07:00
Junio C Hamano
f4af7f1963 Merge branch 'jl/submodule-add-relurl-wo-upstream' into maint
* jl/submodule-add-relurl-wo-upstream:
  submodule add: clean up duplicated code
  submodule add: allow relative repository path even when no url is set
  submodule add: test failure when url is not configured in superproject

Conflicts:
	git-submodule.sh
2011-08-16 12:41:13 -07:00
Junio C Hamano
64b9db5109 Merge branch 'js/ls-tree-error' into maint
* js/ls-tree-error:
  Ensure git ls-tree exits with a non-zero exit code if read_tree_recursive fails.
  Add a test to check that git ls-tree sets non-zero exit code on error.
2011-08-16 12:41:12 -07:00
Junio C Hamano
5480861c24 Merge branch 'jk/fast-export-quote-path' into maint
* jk/fast-export-quote-path:
  fast-export: quote paths in output
2011-08-16 12:41:12 -07:00
Junio C Hamano
7aa50897dd Merge branch 'jc/maint-reset-unmerged-path' into maint
* jc/maint-reset-unmerged-path:
  reset [<commit>] paths...: do not mishandle unmerged paths
2011-08-16 11:41:28 -07:00
Junio C Hamano
4a5a8008fd Merge branch 'jc/submodule-sync-no-auto-vivify' into maint
* jc/submodule-sync-no-auto-vivify:
  submodule add: always initialize .git/config entry
  submodule sync: do not auto-vivify uninteresting submodule
2011-08-16 11:41:26 -07:00
Junio C Hamano
d5c756e99e Merge branch 'bc/submodule-foreach-stdin-fix-1.7.4' into maint
* bc/submodule-foreach-stdin-fix-1.7.4:
  git-submodule.sh: preserve stdin for the command spawned by foreach
  t/t7407: demonstrate that the command called by 'submodule foreach' loses stdin
2011-08-16 11:23:26 -07:00
Junio C Hamano
824f4a9389 Merge branch 'aw/rebase-i-p' into maint
* aw/rebase-i-p:
  rebase -i -p: include non-first-parent commits in todo list
2011-08-16 11:23:25 -07:00
Junio C Hamano
e10e476fb1 Merge branch 'jk/combine-diff-binary-etc' into maint
* jk/combine-diff-binary-etc:
  combine-diff: respect textconv attributes
  refactor get_textconv to not require diff_filespec
  combine-diff: handle binary files as binary
  combine-diff: calculate mode_differs earlier
  combine-diff: split header printing into its own function
2011-08-16 11:23:24 -07:00
Fredrik Gustafsson
abc06822af rev-parse: add option --resolve-git-dir <path>
Check if <path> is a valid git-dir or a valid git-file that points
to a valid git-dir.

We want tests to be independent from the fact that a git-dir may
be a git-file. Thus we changed tests to use this feature.

Signed-off-by: Fredrik Gustafsson <iveqy@iveqy.com>
Mentored-by: Jens Lehmann <Jens.Lehmann@web.de>
Mentored-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-16 11:04:31 -07:00
Jonathan Nieder
127f045222 revert: plug memory leak in "cherry-pick root commit" codepath
The empty tree passed as common ancestor to merge_trees() when
cherry-picking a parentless commit is allocated on the heap and never
freed.  Leaking such a small one-time allocation is not a very big
problem, but now that "git cherry-pick" can cherry-pick multiple
commits it can start to add up.

Avoid the leak by storing the fake tree exactly once in the BSS
section (i.e., use a static).  While at it, let's add a test to make
sure cherry-picking multiple parentless commits continues to work.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-16 10:51:34 -07:00
Dmitry Ivankov
8fb3ad76b1 fast-import: prevent producing bad delta
To produce deltas for tree objects fast-import tracks two versions
of tree's entries - base and current one. Base version stands both
for a delta base of this tree, and for a entry inside a delta base
of a parent tree. So care should be taken to keep it in sync.

tree_content_set cuts away a whole subtree and replaces it with a
new one (or NULL for lazy load of a tree with known sha1). It
keeps a base sha1 for this subtree (needed for parent tree). And
here is the problem, 'subtree' tree root doesn't have the implied
base version entries.

Adjusting the subtree to include them would mean a deep rewrite of
subtree. Invalidating the subtree base version would mean recursive
invalidation of parents' base versions. So just mark this tree as
do-not-delta me. Abuse setuid bit for this purpose.

tree_content_replace is the same as tree_content_set except that is
is used to replace the root, so just clearing base sha1 here (instead
of setting the bit) is fine.

[di: log message]

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:40:01 -07:00
Dmitry Ivankov
9a0edb79f2 fast-import: add a test for tree delta base corruption
fast-import is able to write imported tree objects in delta format.
It holds a tree structure in memory where each tree entry may have
a delta base sha1 assigned. When delta base data is needed it is
reconstructed from this in-memory structure. Though sometimes the
delta base data doesn't match the delta base sha1 so wrong or even
corrupt pack is produced.

Add a small test that produces a corrupt pack. It uses just tree
copy and file modification commands aside from the very basic commit
and blob commands.

Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:40:00 -07:00
Elijah Newren
6d63070cac merge-recursive: Fix virtual merge base for rename/rename(1to2)/add-dest
Earlier in this series, the patch "merge-recursive: add handling for
rename/rename/add-dest/add-dest" added code to handle the rename on each
side of history also being involved in a rename/add conflict, but only
did so in the non-recursive case.  Add code for the recursive case,
ensuring that the "added" files are not simply deleted.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:40 -07:00
Elijah Newren
b630b81470 t6036: criss-cross + rename/rename(1to2)/add-dest + simple modify
This is another testcase trying to exercise the virtual merge base
creation in the rename/rename(1to2) code.  A testcase is added that we
should be able to merge cleanly, but which requires a virtual merge base
to be created that correctly handles rename/add-dest conflicts within the
rename/rename(1to2) testcase handling.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:40 -07:00
Elijah Newren
35a74abff3 merge-recursive: Avoid unnecessary file rewrites
Often times, a potential conflict at a path is resolved by merge-recursive
by using the content that was already present at that location.  In such
cases, we do not want to overwrite the content that is already present, as
that could trigger unnecessary recompilations.  One of the patches earlier
in this series ("merge-recursive: When we detect we can skip an update,
actually skip it") fixed the cases that involved content merges, but there
were a few other cases as well.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:40 -07:00
Elijah Newren
3e333a6146 t6022: Additional tests checking for unnecessary updates of files
I stumbled across a case, this one not involving a content merge, where
git currently rewrites a file unnecessarily.  A quick audit uncovered two
additional situations (also not involving content merges) with the same
problem.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:40 -07:00
Elijah Newren
f53d39778c merge-recursive: Fix spurious 'refusing to lose untracked file...' messages
Calling update_stages() before update_file() can sometimes result in git
thinking the file being updated is untracked (whenever update_stages
moves it to stage 3).  Reverse the call order, and add a big comment to
update_stages to hopefully prevent others from making the same mistake.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:40 -07:00
Elijah Newren
3f680ff0cf t6022: Add testcase for spurious "refusing to lose untracked" messages
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:39 -07:00
Jeff King
814f7d902b t3030: fix accidental success in symlink rename
In this test, we have merge two branches. On one branch, we
renamed "a" to "e". On the other, we renamed "a" to "e" and
then added a symlink pointing at "a" pointing to "e".

The results for the test indicate that the merge should
succeed, but also that "a" should no longer exist. Since
both sides renamed "a" to the same destination, we will end
up comparing those destinations for content.

But what about what's left? One side (the rename only),
replaced "a" with nothing. The other side replaced it with a
symlink. The common base must also be nothing, because any
"a" before this was meaningless (it was totally unrelated
content that ended up getting renamed).

The only sensible resolution is to keep the symlink. The
rename-only side didn't touch the content versus the common
base, and the other side added content. The 3-way merge
dictates that we take the side with a change.

And this gives the overall merge an intuitive result.  One
side made one change (a rename), and the other side made two
changes: an identical rename, and an addition (that just
happened to be at the same spot). The end result should
contain both changes.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:39 -07:00
Elijah Newren
3672c97148 merge-recursive: Fix working copy handling for rename/rename/add/add
If either side of a rename/rename(1to2) conflict is itself also involved
in a rename/add-dest conflict, then we need to make sure both the rename
and the added file appear in the working copy.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:39 -07:00
Elijah Newren
1ac91b32b5 merge-recursive: add handling for rename/rename/add-dest/add-dest
Each side of the rename in rename/rename(1to2) could potentially also be
involved in a rename/add conflict.  Ensure stages for such conflicts are
also recorded.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:39 -07:00
Elijah Newren
b70332520d merge-recursive: Make modify/delete handling code reusable
modify/delete and rename/delete share a lot of similarities; we'd like all
the criss-cross and D/F conflict handling specializations to be shared
between the two.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:39 -07:00
Elijah Newren
434b8525e7 merge-recursive: Consider modifications in rename/rename(2to1) conflicts
Our previous conflict resolution for renaming two different files to the
same name ignored the fact that each of those files may have modifications
from both sides of history to consider.  We need to do a three-way merge
for each of those files, and then handle the conflict of both sets of
merged contents trying to be recorded with the same name.

It is important to note that this changes our strategy in the recursive
case.  After doing a three-way content merge of each of the files
involved, we still are faced with the fact that we are trying to put both
of the results (including conflict markers) into the same path.  We could
do another two-way merge, but I think that becomes confusing.  Also,
taking a hint from the modify/delete and rename/delete cases we handled
earlier, a more useful "common ground" would be to keep the three-way
content merge but record it with the original filename.  The renames can
still be detected, we just allow it to be done in the o->call_depth=0
case.  This seems to result in simpler & easier to understand merge
conflicts as well, as evidenced by some of the changes needed in our
testsuite in t6036.  (However, it should be noted that this change will
cause problems those renames also occur along with a file being added
whose name matches the source of the rename.  Since git currently cannot
detect rename/add-source situations, though, this codepath is not
currently used for those cases anyway.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:39 -07:00
Elijah Newren
c52ff85d97 merge-recursive: Fix rename/rename(1to2) resolution for virtual merge base
When renaming one file to two files, we really should be doing a content
merge.  Also, in the recursive case, undoing the renames and recording the
merged file in the index with the source of the rename (while deleting
both destinations) allows the renames to be re-detected in the
non-recursive merge and will result in fewer spurious conflicts.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:38 -07:00
Elijah Newren
ec61d14963 merge-recursive: Fix modify/delete resolution in the recursive case
When o->call_depth>0 and we have conflicts, we try to find "middle ground"
when creating the virtual merge base.  In the case of content conflicts,
this can be done by doing a three-way content merge and using the result.
In all parts where the three-way content merge is clean, it is the correct
middle ground, and in parts where it conflicts there is no middle ground
but the conflict markers provide a good compromise since they are unlikely
to accidentally match any further changes.

In the case of a modify/delete conflict, we cannot do the same thing.
Accepting either endpoint as the resolution for the virtual merge base
runs the risk that when handling the non-recursive case we will silently
accept one person's resolution over another without flagging a conflict.
In this case, the closest "middle ground" we have is actually the merge
base of the candidate merge bases.  (We could alternatively attempt a
three way content merge using an empty file in place of the deleted file,
but that seems to be more work than necessary.)

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:38 -07:00
Elijah Newren
5b448b8530 merge-recursive: When we detect we can skip an update, actually skip it
In 882fd11 (merge-recursive: Delay content merging for renames 2010-09-20),
there was code that checked for whether we could skip updating a file in
the working directory, based on whether the merged version matched the
current working copy.  Due to the desire to handle directory/file conflicts
that were resolvable, that commit deferred content merging by first
updating the index with the unmerged entries and then moving the actual
merging (along with the skip-the-content-update check) to another function
that ran later in the merge process.  As part moving the content merging
code, a bug was introduced such that although the message about skipping
the update would be printed (whenever GIT_MERGE_VERBOSITY was sufficiently
high), the file would be unconditionally updated in the working copy
anyway.

When we detect that the file does not need to be updated in the working
copy, update the index appropriately and then return early before updating
the working copy.

Note that there was a similar change in b2c8c0a (merge-recursive: When we
detect we can skip an update, actually skip it 2011-02-28), but it was
reverted by 6db4105 (Revert "Merge branch 'en/merge-recursive'"
2011-05-19) since it did not fix both of the relevant types of unnecessary
update breakages and, worse, it made use of some band-aids that caused
other problems.  The reason this change works is due to the changes earlier
in this series to (a) record_df_conflict_files instead of just unlinking
them early, (b) allowing make_room_for_path() to remove D/F entries,
(c) the splitting of update_stages_and_entry() to have its functionality
called at different points, and (d) making the pathnames of the files
involved in the merge available to merge_content().

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:37 -07:00
Elijah Newren
3c217c077a merge-recursive: Provide more info in conflict markers with file renames
Whenever there are merge conflicts in file contents, we would mark the
different sides of the conflict with the two branches being merged.
However, when there is a rename involved as well, the branchname is not
sufficient to specify where the conflicting content came from.  In such
cases, mark the two sides of the conflict with branchname:filename rather
than just branchname.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:37 -07:00
Elijah Newren
51931bf08e merge-recursive: Improve handling of rename target vs. directory addition
When dealing with file merging and renames and D/F conflicts and possible
criss-cross merges (how's that for a corner case?), we did not do a
thorough job ensuring the index and working directory had the correct
contents.   Fix the logic in merge_content() to handle this.  Also,
correct some erroneous tests in t6022 that were expecting the wrong number
of unmerged index entries.  These changes fix one of the tests in t6042
(and almost fix another one from t6042 as well).

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:37 -07:00
Elijah Newren
0a6b87126e merge-recursive: Make dead code for rename/rename(2to1) conflicts undead
The code for rename_rename_2to1 conflicts (two files both being renamed to
the same filename) was dead since the rename/add path was always being
independently triggered for each of the renames instead.  Further,
reviving the dead code showed that it was inherently buggy and would
always segfault -- among a few other bugs.

Move the else-if branch for the rename/rename block before the rename/add
block to make sure it is checked first, and fix up the rename/rename(2to1)
code segments to make it handle most cases.  Work is still needed to
handle higher dimensional corner cases such as rename/rename/modify/modify
issues.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:37 -07:00
Elijah Newren
531357a4cc merge-recursive: Fix deletion of untracked file in rename/delete conflicts
In the recursive case (o->call_depth > 0), we do not modify the working
directory.  However, when o->call_depth==0, file renames can mean we need
to delete the old filename from the working copy.  Since there have been
lots of changes and mistakes here, let's go through the details.  Let's
start with a simple explanation of what we are trying to achieve:

  Original goal: If a file is renamed on the side of history being merged
  into head, the filename serving as the source of that rename needs to be
  removed from the working directory.

The path to getting the above statement implemented in merge-recursive took
several steps.  The relevant bits of code may be instructive to keep in
mind for the explanation, especially since an English-only description
involves double negatives that are hard to follow.  These bits of code are:
  int remove_file(..., const char *path, int no_wd)
  {
    ...
    int update_working_directory = !o->call_depth && !no_wd;
and
  remove_file(o, 1, ren1_src, <expression>);
Where the choice for <expression> has morphed over time:

65ac6e9 (merge-recursive: adjust to loosened "working file clobbered"
check 2006-10-27), introduced the "no_wd" parameter to remove_file() and
used "1" for <expression>.  This meant ren1_src was never deleted, leaving
it around in the working copy.

In 8371234 (Remove uncontested renamed files during merge. 2006-12-13),
<expression> was changed to "index_only" (where index_only ==
!!o->call_depth; see b7fa51da).   This was equivalent to using "0" for
<expression> (due to the early logic in remove_file), and is orthogonal to
the condition we actually want to check at this point; it resulted in the
source file being removed except when index_only was false.  This was
problematic because the file could have been renamed on the side of history
including head, in which case ren1_src could correspond to an untracked
file that should not be deleted.

In 183d797 (Keep untracked files not involved in a merge. 2007-02-04),
<expression> was changed to "index_only || stage == 3".  While this gives
correct behavior, the "index_only ||" portion of <expression> is
unnecessary and makes the code slightly harder to follow.

There were also two further changes to this expression, though without
any change in behavior.  First in b7fa51d (merge-recursive: get rid of the
index_only global variable 2008-09-02), it was changed to "o->call_depth
|| stage == 3".  (index_only == !!o->call_depth).  Later, in 41d70bd6
(merge-recursive: Small code clarification -- variable name and comments),
this was changed to "o->call_depth || renamed_stage == 2" (where stage was
renamed to other_stage and renamed_stage == other_stage ^ 1).

So we ended with <expression> being "o->call_depth || renamed_stage == 2".
But the "o->call_depth ||" piece was unnecessary.  We can remove it,
leaving us with <expression> being "renamed_stage == 2".  This doesn't
change behavior at all, but it makes the code clearer.  Which is good,
because it's about to get uglier.

  Corrected goal: If a file is renamed on the side of history being merged
  into head, the filename serving as the source of that rename needs to be
  removed from the working directory *IF* that file is tracked in head AND
  the file tracked in head is related to the original file.

Note that the only difference between the original goal and the corrected
goal is the two extra conditions added at the end.  The first condition is
relevant in a rename/delete conflict.  If the file was deleted on the
HEAD side of the merge and an untracked file of the same name was added to
the working copy, then without that extra condition the untracked file
will be erroneously deleted.  This changes <expression> to "renamed_stage
== 2 || !was_tracked(ren1_src)".

The second additional condition is relevant in two cases.

The first case the second condition can occur is when a file is deleted
and a completely different file is added with the same name.  To my
knowledge, merge-recursive has no mechanism for detecting deleted-and-
replaced-by-different-file cases, so I am simply punting on this
possibility.

The second case for the second condition to occur is when there is a
rename/rename/add-source conflict.  That is, when the original file was
renamed on both sides of history AND the original filename is being
re-used by some unrelated (but tracked) content.  This case also presents
some additional difficulties for us since we cannot currently detect these
rename/rename/add-source conflicts; as long as the rename detection logic
"optimizes" by ignoring filenames that are present at both ends of the
diff, these conflicts will go unnoticed.  However, rename/rename conflicts
are handled by an entirely separate codepath not being discussed here, so
this case is not relevant for the line of code under consideration.

In summary:
  Change <expression> from "o->call_depth || renamed_stage == 2" to
  "renamed_stage == 2 || !was_tracked(ren1_src)", in order to remove
  unnecessary code and avoid deleting untracked files.

96 lines of explanation in the changelog to describe a one-line fix...

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:36 -07:00
Elijah Newren
ed0148a520 merge-recursive: Allow make_room_for_path() to remove D/F entries
If there were several files conflicting below a directory corresponding
to a D/F conflict, and the file of that D/F conflict is in the way, we
want it to be removed.  Since files of D/F conflicts are handled last,
they can be reinstated later and possibly with a new unique name.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:36 -07:00
Elijah Newren
f0fd4d05e8 merge-recursive: Fix sorting order and directory change assumptions
We cannot assume that directory/file conflicts will appear in sorted
order; for example, 'letters.txt' comes between 'letters' and
'letters/file'.

Thanks to Johannes for a pointer about qsort stability issues with
Windows and suggested code change.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:34 -07:00
Elijah Newren
7b1c610f84 merge-recursive: Fix recursive case with D/F conflict via add/add conflict
When a D/F conflict is introduced via an add/add conflict, when
o->call_depth > 0 we need to ensure that the higher stage entry from the
base stage is removed.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:34 -07:00
Elijah Newren
7dd9c304be t6022: Add testcase for merging a renamed file with a simple change
This is a testcase that was broken by b2c8c0a (merge-recursive: When we
detect we can skip an update, actually skip it 2011-02-28) and fixed by
6db4105 (Revert "Merge branch 'en/merge-recursive'" 2011-05-19).  Include
this testcase to ensure we don't regress it again.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:33 -07:00
Elijah Newren
f1a0f457b3 t6022: New tests checking for unnecessary updates of files
This testcase was part of en/merge-recursive that was reverted in 6db4105
(Revert "Merge branch 'en/merge-recursive'" 2011-05-19).  While the other
changes in that series caused unfortunate breakage, this testcase is still
useful; reinstate it.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:33 -07:00
Elijah Newren
5b5261baab t6022: Remove unnecessary untracked files to make test cleaner
Since this test later does a git add -A, we should clean out unnecessary
untracked files as part of our cleanup.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:33 -07:00
Elijah Newren
0b35deb378 t6036: criss-cross + rename/rename(1to2)/add-source + modify/modify
This is another challenging testcase trying to exercise the virtual merge
base creation in the rename/rename(1to2) code.  A testcase is added that
we should be able to merge cleanly, but which requires a virtual merge
base to be created that is aware of rename/rename(1to2)/add-source
conflicts and can handle those.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:33 -07:00
Elijah Newren
a0d3311624 t6036: criss-cross w/ rename/rename(1to2)/modify+rename/rename(2to1)/modify
This test is mostly just designed for testing optimality of the virtual
merge base in the event of a rename/rename(1to2) conflict.  The current
choice for resolving this in git seems somewhat confusing and suboptimal.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:33 -07:00
Elijah Newren
827f2b7d29 t6036: tests for criss-cross merges with various directory/file conflicts
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:32 -07:00
Elijah Newren
96b079e5c9 t6036: criss-cross with weird content can fool git into clean merge
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:32 -07:00
Elijah Newren
fe7e9c23e4 t6036: Add differently resolved modify/delete conflict in criss-cross test
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:32 -07:00
Elijah Newren
c6966068fb t6042: Add failing testcases for rename/rename/add-{source,dest} conflicts
Add testcases that cover three failures with current git merge, all
involving renaming one file on both sides of history:

Case 1:
If a single file is renamed to two different filenames on different sides
of history, there should be a conflict.  Adding a new file on one of those
sides of history whose name happens to match the rename source should not
cause the merge to suddenly succeed.

Case 2:
If a single file is renamed on both sides of history but renamed
identically, there should not be a conflict.  This works fine.  However,
if one of those sides also added a new file that happened to match the
rename source, then that file should be left alone.  Currently, the
rename/rename conflict handling causes that new file to become untracked.

Case 3:
If a single file is renamed to two different filenames on different sides
of history, there should be a conflict.  This works currently.  However,
if those renames also involve rename/add conflicts (i.e. there are new
files on one side of history that match the destination of the rename of
the other side of history), then the resulting conflict should be recorded
in the index, showing that there were multiple files with a given filename.
Currently, git silently discards one of file versions.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:32 -07:00
Elijah Newren
f0b75fcc81 t6042: Ensure rename/rename conflicts leave index and workdir in sane state
rename/rename conflicts, both with one file being renamed to two different
files and with two files being renamed to the same file, should leave the
index and the working copy in a sane state with appropriate conflict
recording, auxiliary files, etc.  Git seems to handle one of the two cases
alright, but has some problems with the two files being renamed to one
case.  Add tests for both cases.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:32 -07:00
Elijah Newren
ac6e839241 t6042: Add tests for content issues with modify/rename/directory conflicts
Add testcases that cover a variety of merge issues with files being
renamed and modified on different sides of history, when there are
directories possibly conflicting with the rename location.

Case 1:
On one side of history, a file is modified and a new directory is added.
On the other side of history, the file is modified in a non-conflicting
way but is renamed to the location of the new directory.

Case 2:
[Same as case 1, but there is also a content conflict.  In detail:]
On one side of history, a file is modified and a new directory is added.
On the other side of history, the file is modified in a conflicting way
and it is renamed to the location of the new directory.

Case 3:
[Similar to case 1, but the "conflicting" directory is the directory
where the file original resided.  In detail:]
On one side of history, a file is modified.  On the other side of history,
the file is modified in a non-conflicting way, but the directory it was
under is removed and the file is renamed to the location of the directory
it used to reside in (i.e. 'sub/file' gets renamed to 'sub').  This is
flagged as a directory/rename conflict, but should be able to be resolved
since the directory can be cleanly removed by the merge.

One branch renames a file and makes a file where the directory the renamed
file used to be in, and the other branch updates the file in
place. Merging them should resolve it cleanly as long as the content level
change on the branches do not overlap and rename is detected, or should
leave conflict without losing information.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:31 -07:00
Elijah Newren
a0551f212e t6042: Add a testcase where undetected rename causes silent file deletion
There are cases where history should merge cleanly, and which current git
does merge cleanly despite not detecting a rename; however the merge
currently nukes files that should not be removed.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:31 -07:00
Elijah Newren
7b4ed5941c t6042: Add a pair of cases where undetected renames cause issues
An undetected rename can cause a silent success where a conflict should
have been detected, or can cause an erroneous conflict state where the
merge should have been resolvable.  Add testcases for both.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:31 -07:00
Elijah Newren
58040239f5 t6042: Add failing testcase for rename/modify/add-source conflict
If there is a cleanly resolvable rename/modify conflict AND there is a new
file introduced on the renamed side of the merge whose name happens to
match that of the source of the rename (but is otherwise unrelated to the
rename), then git fails to cleanly resolve the merge despite the fact that
the new file should not cause any problems.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:31 -07:00
Elijah Newren
695576fddd t6042: Add a testcase where git deletes an untracked file
Current git will nuke an untracked file during a rename/delete conflict if
(a) there is an untracked file whose name matches the source of a rename
and (b) the merge is done in a certain direction.  Add a simple testcase
demonstrating this bug.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-14 14:19:31 -07:00
Clemens Buchacher
0f64bfa956 ls-files: fix pathspec display on error
The following sequence of commands reveals an issue with error
reporting of relative paths:

 $ mkdir sub
 $ cd sub
 $ git ls-files --error-unmatch ../bbbbb
 error: pathspec 'b' did not match any file(s) known to git.
 $ git commit --error-unmatch ../bbbbb
 error: pathspec 'b' did not match any file(s) known to git.

This bug is visible only if the normalized path (i.e., the relative
path from the repository root) is longer than the prefix.
Otherwise, the code skips over the normalized path and reads from
an unused memory location which still contains a leftover of the
original command line argument.

So instead, use the existing facilities to deal with relative paths
correctly.

Also fix inconsistency between "checkout" and "commit", e.g.

    $ cd Documentation
    $ git checkout nosuch.txt
    error: pathspec 'Documentation/nosuch.txt' did not match...
    $ git commit nosuch.txt
    error: pathspec 'nosuch.txt' did not match...

by propagating the prefix down the codepath that reports the error.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 13:04:16 -07:00
Junio C Hamano
3f4ab62714 test: consolidate definition of $LF
As we seem to need this variable that holds a single LF character
in many places, define it in test-lib.sh and let the test scripts
use it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 13:02:47 -07:00
Roberto Tyley
7f684a2aff Tolerate zlib deflation with window size < 32Kb
Git currently reports loose objects as 'corrupt' if they've been
deflated using a window size less than 32Kb, because the
experimental_loose_object() function doesn't recognise the header
byte as a zlib header. This patch makes the function tolerant of
all valid window sizes (15-bit to 8-bit) - but doesn't sacrifice
it's accuracy in distingushing the standard loose-object format
from the experimental (now abandoned) format.

On memory constrained systems zlib may use a much smaller window
size - working on Agit, I found that Android uses a 4KB window;
giving a header byte of 0x48, not 0x78. Consequently all loose
objects generated appear 'corrupt', which is why Agit is a read-only
Git client at this time - I don't want my client to generate Git
repos that other clients treat as broken :(

This patch makes Git tolerant of different deflate settings - it
might appear that it changes experimental_loose_object() to the point
where it could incorrectly identify the experimental format as the
standard one, but the two criteria (bitmask & checksum) can only
give a false result for an experimental object where both of the
following are true:

1) object size is exactly 8 bytes when uncompressed (bitmask)
2) [single-byte in-pack git type&size header] * 256
   + [1st byte of the following zlib header] % 31 = 0 (checksum)

As it happens, for all possible combinations of valid object type
(1-4) and window bits (0-7), the only time when the checksum will be
divisible by 31 is for 0x1838 - ie object type *1*, a Commit - which,
due the fields all Commit objects must contain, could never be as
small as 8 bytes in size.

Given this, the combination of the two criteria (bitmask & checksum)
always correctly determines the buffer format, and is more tolerant
than the previous version.

The alternative to this patch is simply removing support for the
experimental format, which I am also totally cool with.

References:

Android uses a 4KB window for deflation:
http://android.git.kernel.org/?p=platform/libcore.git;a=blob;f=luni/src/main/native/java_util_zip_Deflater.cpp;h=c0b2feff196e63a7b85d97cf9ae5bb2583409c28;hb=refs/heads/gingerbread#l53

Code snippet searching for false positives with the zlib checksum:
https://gist.github.com/1118177

Signed-off-by: Roberto Tyley <roberto.tyley@guardian.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 13:02:47 -07:00
David Barr
0e8341f29d am: ignore leading whitespace before patch
Some web-based email clients prepend whitespace to raw message
transcripts to workaround content-sniffing in some browsers.  Adjust
the patch format detection logic to ignore leading whitespace.

So now you can apply patches from GMail with "git am" in three steps:

 1. choose "show original"
 2. tell the browser to "save as" (for example by pressing Ctrl+S)
 3. run "git am" on the saved file

This fixes a regression introduced by v1.6.4-rc0~15^2~2 (git-am
foreign patch support: autodetect some patch formats, 2009-05-27).
GMail support was first introduced to "git am" by v1.5.4-rc0~274^2
(Make mailsplit and mailinfo strip whitespace from the start of the
input, 2007-11-01).

Signed-off-by: David Barr <davidbarr@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 13:01:18 -07:00
Heiko Voigt
322bb6e12f add update 'none' flag to disable update of submodule by default
This is useful to mark a submodule as unneeded by default. When this
option is set and the user wants to work with such a submodule he
needs to configure 'submodule.<name>.update=checkout' or pass the
--checkout option. Then the submodule can be handled like a normal
submodule.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 12:27:30 -07:00
Dmitry Ivankov
53f53cff24 fsck: improve committer/author check
fsck allows a name with > character in it like "name> <email>". Also for
"name email>" fsck says "missing space before email".

More precisely, it seeks for a first '<', checks that ' ' preceeds it.
Then seeks to '<' or '>' and checks that it is the '>'. Missing space is
reported if either '<' is not found or it's not preceeded with ' '.

Change it to following. Seek to '<' or '>', check that it is '<' and is
preceeded with ' '. Seek to '<' or '>' and check that it is '>'. So now
"name> <email>" is rejected as "bad name". More strict name check is the
only change in what is accepted.

Report 'missing space' only if '<' is found and is not preceeded with a
space.

Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 12:21:07 -07:00
Dmitry Ivankov
e3c98120f5 fsck: add a few committer name tests
fsck reports "missing space before <email>" for committer string equal
to "name email>" or to "". It'd be nicer to say "missing email" for
the second string and "name is bad" (has > in it) for the first one.
Add a failing test for these messages.

For "name> <email>" no error is reported. Looks like a bug, so add
such a failing test."

Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 12:21:05 -07:00
Dmitry Ivankov
4b4963c0e1 fast-import: check committer name more strictly
The documentation declares following identity format:
(<name> SP)? LT <email> GT
where name is any string without LF and LT characters.
But fast-import just accepts any string up to first GT
instead of checking the whole format, and moreover just
writes it as is to the commit object.

git-fsck checks for [^<\n]* <[^<>\n]*> format. Note that the
space is mandatory. And the space quirk is already handled via
extending the string to the left when needed.

Modify fast-import input identity format to a slightly stricter
one - deny LF, LT and GT in both <name> and <email>. And check
for it.

This is stricter then git-fsck as fsck accepts "Name> <email>"
currently, but soon fsck check will be adjusted likewise.

Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 12:21:03 -07:00
Dmitry Ivankov
17fb00721b fast-import: don't fail on omitted committer name
fast-import format declares 'committer_name SP' to be optional in
'committer_name SP LT email GT'. But for a (commit) object SP is
obligatory while zero length committer_name is ok. git-fsck checks
that SP is present, so fast-import must prepend it if the name SP
part is omitted. It doesn't do so and thus for "LT email GT" ident
it writes a bad object.

Name cannot contain LT or GT, ident always comes after SP in fast-import.
So if ident starts with LT reuse the SP as if a valid 'SP LT email GT'
ident was passed.

This fixes a ident parsing bug for a well-formed fast-import input.
Though the parsing is still loose and can accept a ill-formed input.

Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 12:20:56 -07:00
Dmitry Ivankov
4cedb78cb5 fast-import: add input format tests
Documentation/git-fast-import.txt says that git-fast-import is strict
about it's input format. But committer/author field parsing is a bit
loose. Invalid values can be unnoticed and written out to the commit,
either with format-conforming input or with non-format-conforming one.

Add one passing and one failing test for empty/absent committer name
with well-formed input. And a failed test with unnoticed ill-formed
input.

Reported-by: SASAKI Suguru <sss.sonik@gmail.com>
Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 12:20:56 -07:00
Johannes Sixt
23ce5c39dc t3900: do not reference numbered arguments from the test script
The call to test_expect_success is nested inside a function, whose
arguments the test code wants to access. But it is not specified that any
unexpanded $1, $2, $3, etc in the test code will access the surrounding
function's arguments. Rather, they will access the arguments of the
function that happens to eval the test code.

In this case, the reference is intended to supply '-m message' to a call of
'git commit --squash'. Remove it because -m is optional and the test case
does not check for it. There are tests in t7500 that check combinations of
--squash and -m.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 11:11:14 -07:00
Junio C Hamano
b81b758d50 Merge branch 'jk/fast-export-quote-path'
* jk/fast-export-quote-path:
  fast-export: quote paths in output
2011-08-11 11:03:16 -07:00
Junio C Hamano
5fb249aec7 Merge branch 'rs/grep-function-context'
* rs/grep-function-context:
  grep: long context options
  grep: add option to show whole function as context
2011-08-11 11:03:09 -07:00
Jon Seymour
24c512803d bisect: add support for bisecting bare repositories
This enhances the support for bisecting history in bare repositories.

The "git bisect" command no longer needs to be run inside a repository
with a working tree; it defaults to --no-checkout when run in a bare
repository.

Two tests are included to demonstrate this behaviour.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-09 10:26:18 -07:00
Junio C Hamano
86c9cd8d25 Merge branch 'jl/submodule-update-quiet'
* jl/submodule-update-quiet:
  submodule: update and add must honor --quiet flag
2011-08-08 12:33:34 -07:00
Junio C Hamano
e85a43bc44 Merge branch 'js/ls-tree-error'
* js/ls-tree-error:
  Ensure git ls-tree exits with a non-zero exit code if read_tree_recursive fails.
  Add a test to check that git ls-tree sets non-zero exit code on error.
2011-08-08 12:33:34 -07:00
Junio C Hamano
75745bc704 Merge branch 'jk/reset-reflog-message-fix'
* jk/reset-reflog-message-fix:
  reset: give better reflog messages
2011-08-08 12:33:33 -07:00
Jonathan Nieder
a7c58f280a test: cope better with use of return for errors
In olden times, tests would quietly exit the script when they failed
at an inconvenient moment, which was a little disconcerting.
Therefore v0.99.5~24^2~4 (Trapping exit in tests, using return for
errors, 2005-08-10) switched to an idiom of using "return" instead,
wrapping evaluation of test code in a function to make that safe:

	test_run_ () {
		eval >&3 2>&4 "$1"
		eval_ret="$?"
		return 0
	}

Years later, the implementation of test_when_finished (v1.7.1.1~95,
2010-05-02) and v1.7.2-rc2~1^2~13 (test-lib: output a newline before
"ok" under a TAP harness, 2010-06-24) took advantage of test_run_ as a
place to put code shared by all test assertion functions, without
paying attention to the function's former purpose:

	test_run_ () {
		...
		eval >&3 2>&4 "$1"
		eval_ret=$?

		if should run cleanup
		then
			eval >&3 2>&4 "$test_cleanup"
		fi
		if TAP format requires a newline here
		then
			echo
		fi
		return 0
	}

That means cleanup commands and the newline to put TAP output at
column 0 are skipped when tests use "return" to fail early.  Fix it by
introducing a test_eval_ function to catch the "return", with a
comment explaining the new function's purpose for the next person who
might touch this code.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-08 11:28:42 -07:00
Jonathan Nieder
aa0bcf962a test: simplify return value of test_run_
As v0.99.5~24^2~4 (Trapping exit in tests, using return for errors,
2005-08-10) explains, callers to test_run_ (such as test_expect_code)
used to check the result from eval and the return value separately so
tests that fail early could be distinguished from tests that completed
normally with successful (nonzero) status.  Eventually tests that
succeed with nonzero status were phased out (see v1.7.4-rc0~65^2~19,
2010-10-03 and especially v1.5.5-rc0~271, 2008-02-01) but the weird
two-return-value calling convention lives on.

Let's get rid of it.  The new rule: test_run_ succeeds (returns 0)
if and only if the test succeeded.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-08 11:26:40 -07:00
Ramkumar Ramachandra
5a5d80f4ca revert: Introduce --continue to continue the operation
Introduce a new "git cherry-pick --continue" command which uses the
information in ".git/sequencer" to continue a cherry-pick that stopped
because of a conflict or other error.  It works by dropping the first
instruction from .git/sequencer/todo and performing the remaining
cherry-picks listed there, with options (think "-s" and "-X") from the
initial command listed in ".git/sequencer/opts".

So now you can do:

  $ git cherry-pick -Xpatience foo..bar
  ... description conflict in commit moo ...
  $ git cherry-pick --continue
  error: 'cherry-pick' is not possible because you have unmerged files.
  fatal: failed to resume cherry-pick
  $ echo resolved >conflictingfile
  $ git add conflictingfile && git commit
  $ git cherry-pick --continue; # resumes with the commit after "moo"

During the "git commit" stage, CHERRY_PICK_HEAD will aid by providing
the commit message from the conflicting "moo" commit.  Note that the
cherry-pick mechanism has no control at this stage, so the user is
free to violate anything that was specified during the first
cherry-pick invocation.  For example, if "-x" was specified during the
first cherry-pick invocation, the user is free to edit out the message
during commit time.  Note that the "--signoff" option specified at
cherry-pick invocation time is not reflected in the commit message
provided by CHERRY_PICK_HEAD; the user must take care to add
"--signoff" during the "git commit" invocation.

Helped-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-08 09:28:24 -07:00
Ramkumar Ramachandra
21afd08062 revert: Don't implicitly stomp pending sequencer operation
Protect the user from forgetting about a pending sequencer operation
by immediately erroring out when an existing cherry-pick or revert
operation is in progress like:

  $ git cherry-pick foo
  ... conflict ...
  $ git cherry-pick moo
  error: .git/sequencer already exists
  hint: A cherry-pick or revert is in progress
  hint: Use --reset to forget about it
  fatal: cherry-pick failed

A naive version of this would break the following established ways of
working:

  $ git cherry-pick foo
  ... conflict ...
  $ git reset --hard  # I actually meant "moo" when I said "foo"
  $ git cherry-pick moo

  $ git cherry-pick foo
  ... conflict ...
  $ git commit # commit the resolution
  $ git cherry-pick moo # New operation

However, the previous patches "reset: Make reset remove the sequencer
state" and "revert: Remove sequencer state when no commits are
pending" make sure that this does not happen.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-08 09:24:51 -07:00
Ramkumar Ramachandra
2d27daa91d revert: Remove sequencer state when no commits are pending
When cherry-pick or revert is called on a list of commits, and a
conflict encountered somewhere in the middle, the data in
".git/sequencer" is required to continue the operation.  However, when
a conflict is encountered in the very last commit, the user will have
to "continue" after resolving the conflict and committing just so that
the sequencer state is removed.  This is how the current "rebase -i"
script works as well.

  $ git cherry-pick foo..bar
  ... conflict encountered while picking "bar" ...
  $ echo "resolved" >problematicfile
  $ git add problematicfile
  $ git commit
  $ git cherry-pick --continue # This would be a no-op

Change this so that the sequencer state is cleared when a conflict is
encountered in the last commit.  Incidentally, this patch makes sure
that some existing tests don't break when features like "--reset" and
"--continue" are implemented later in the series.

A better way to implement this feature is to get the last "git commit"
to remove the sequencer state.  However, that requires tighter
coupling between "git commit" and the sequencer, a goal that can be
pursued once the sequencer is made more general.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-08 09:24:50 -07:00
Ramkumar Ramachandra
95eb88d8ee reset: Make reset remove the sequencer state
Years of muscle memory have trained users to use "git reset --hard" to
remove the branch state after any sort operation.  Make it also remove
the sequencer state to facilitate this established workflow:

  $ git cherry-pick foo..bar
  ... conflict encountered ...
  $ git reset --hard # Oops, I didn't mean that
  $ git cherry-pick quux..bar
  ... cherry-pick succeeded ...

Guard against accidental removal of the sequencer state by providing
one level of "undo".  In the first "reset" invocation,
".git/sequencer" is moved to ".git/sequencer-old"; it is completely
removed only in the second invocation.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-08 09:24:50 -07:00
Jeff King
6280dfdc3b fast-export: quote paths in output
Many pathnames in a fast-import stream need to be quoted. In
particular:

  1. Pathnames at the end of an "M" or "D" line need quoting
     if they contain a LF or start with double-quote.

  2. Pathnames on a "C" or "R" line need quoting as above,
     but also if they contain spaces.

For (1), we weren't quoting at all. For (2), we put
double-quotes around the paths to handle spaces, but ignored
the possibility that they would need further quoting.

This patch checks whether each pathname needs c-style
quoting, and uses it. This is slightly overkill for (1),
which doesn't actually need to quote many characters that
vanilla c-style quoting does. However, it shouldn't hurt, as
any implementation needs to be ready to handle quoted
strings anyway.

In addition to adding a test, we have to tweak a test which
blindly assumed that case (2) would always use
double-quotes, whether it needed to or not.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-05 15:56:54 -07:00
Michael Haggerty
f5114a40c0 git-check-attr: Normalize paths
Normalize the path arguments (relative to the working tree root, if
applicable) before looking up their attributes.  This requires passing
the prefix down the call chain.

This fixes two test cases for different reasons:

* "unnormalized paths" is fixed because the .gitattribute-file-seeking
  code is not confused into reading the top-level file twice.

* "relative paths" is fixed because the canonical pathnames are passed
  to get_check_attr() or get_all_attrs(), allowing them to match the
  pathname patterns as expected.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:57:18 -07:00
Michael Haggerty
0216af8356 git-check-attr: Demonstrate problems with relative paths
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:57:18 -07:00
Michael Haggerty
d4d4f8df14 git-check-attr: Demonstrate problems with unnormalized paths
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:57:17 -07:00
Michael Haggerty
fa92f3233c git-check-attr: test that no output is written to stderr
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:57:17 -07:00
Michael Haggerty
ca64d061e0 git-check-attr: Fix command-line handling to match docs
According to the git-check-attr synopsis, if the '--stdin' option is
used then no pathnames are expected on the command line.  Change the
behavior to match this description; namely, if '--stdin' is used but
not '--', then treat all command-line arguments as attribute names.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:53:20 -07:00
Michael Haggerty
c9d8f0ac3b git-check-attr: Drive two tests using the same raw data
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:53:20 -07:00
Michael Haggerty
4ca0f188f6 git-check-attr: Add an --all option to show all attributes
Add new usage patterns

    git check-attr [-a | --all] [--] pathname...
    git check-attr --stdin [-a | --all] < <list-of-paths>

which display all attributes associated with the specified file(s).

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:53:19 -07:00
Michael Haggerty
fdf6be8259 git-check-attr: Error out if no pathnames are specified
If no pathnames are passed as command-line arguments and the --stdin
option is not specified, fail with the error message "No file
specified".  Add tests of this behavior.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:53:19 -07:00
Michael Haggerty
09d7dd7ad6 git-check-attr: Add tests of command-line parsing
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:53:16 -07:00
Michael Haggerty
dcc04366a4 git-check-attr: Add missing "&&"
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:53:16 -07:00
Michael Haggerty
c0b13b21b8 Disallow the empty string as an attribute name
Previously, it was possible to have a line like "file.txt =foo" in a
.gitattribute file, after which an invocation like "git check-attr ''
-- file.txt" would succeed.  This patch disallows both constructs.

Please note that any existing .gitattributes file that tries to set an
empty attribute will now trigger the error message "error: : not a
valid attribute name" whereas previously the nonsense was allowed
through.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:53:15 -07:00
Ramkumar Ramachandra
26ae337be1 revert: Introduce --reset to remove sequencer state
To explicitly remove the sequencer state for a fresh cherry-pick or
revert invocation, introduce a new subcommand called "--reset" to
remove the sequencer state.

Take the opportunity to publicly expose the sequencer paths, and a
generic function called "remove_sequencer_state" that various git
programs can use to remove the sequencer state in a uniform manner;
"git reset" uses it later in this series.  Introducing this public API
is also in line with our long-term goal of eventually factoring out
functions from revert.c into a generic commit sequencer.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:41:21 -07:00
Ramkumar Ramachandra
6f0322633b revert: Save command-line options for continuing operation
In the same spirit as ".git/sequencer/head" and ".git/sequencer/todo",
introduce ".git/sequencer/opts" to persist the replay_opts structure
for continuing after a conflict resolution.  Use the gitconfig format
for this file so that it looks like:

  [options]
	  signoff = true
	  record-origin = true
	  mainline = 1
	  strategy = recursive
	  strategy-option = patience
	  strategy-option = ours

Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Helped-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:40:44 -07:00
Ramkumar Ramachandra
04d3d3cfc4 revert: Save data for continuing after conflict resolution
Ever since v1.7.2-rc1~4^2~7 (revert: allow cherry-picking more than
one commit, 2010-06-02), a single invocation of "git cherry-pick" or
"git revert" can perform picks of several individual commits.  To
implement features like "--continue" to continue the whole operation,
we will need to store some information about the state and the plan at
the beginning.  Introduce a ".git/sequencer/head" file to store this
state, and ".git/sequencer/todo" file to store the plan.  The head
file contains the SHA-1 of the HEAD before the start of the operation,
and the todo file contains an instruction sheet whose format is
inspired by the format of the "rebase -i" instruction sheet.  As a
result, a typical todo file looks like:

  pick 8537f0e submodule add: test failure when url is not configured
  pick 4d68932 submodule add: allow relative repository path
  pick f22a17e submodule add: clean up duplicated code
  pick 59a5775 make copy_ref globally available

Since SHA-1 hex is abbreviated using an find_unique_abbrev(), it is
unambiguous.  This does not guarantee that there will be no ambiguity
when more objects are added to the repository.

These two files alone are not enough to implement a "--continue" that
remembers the command-line options specified; later patches in the
series save them too.

These new files are unrelated to the existing .git/CHERRY_PICK_HEAD,
which will still be useful while committing after a conflict
resolution.

Inspired-by: Christian Couder <chriscool@tuxfamily.org>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:40:44 -07:00
Jon Seymour
b704a8b3fd bisect: add tests for the --no-checkout option.
These tests verify that git-bisect --no-checkout can successfully
bisect commit histories that reference damaged trees.

Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:37:20 -07:00
Jon Seymour
d3dfeedf2e bisect: add tests to document expected behaviour in presence of broken trees.
If the repo is broken, we expect bisect to fail.

Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:33:50 -07:00
Jon Seymour
4764f46492 bisect: move argument parsing before state modification.
Currently 'git bisect start' modifies some state prior to checking
that its arguments are valid.

This change moves argument validation before state modification
with the effect that state modification does not occur
unless argument validations succeeds.

An existing test is changed to check that new bisect state
is not created if arguments are invalid.

A new test is added to check that existing bisect state
is not modified if arguments are invalid.

Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:32:34 -07:00
Johannes Sixt
1b57e56c61 Skip archive --remote tests on Windows
These depend on a working git-upload-archive, which is broken on Windows,
because it depends on fork().

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-03 10:16:20 -07:00
Johannes Sixt
286e2b1a23 Make test number unique
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-03 10:14:50 -07:00
René Scharfe
ba8ea7496f grep: add option to show whole function as context
Add a new option, -W, to show the whole surrounding function of a match.

It uses the same regular expressions as -p and diff to find the beginning
of sections.

Currently it will not display comments in front of a function, but those
that are following one.  Despite this shortcoming it is already useful,
e.g. to simply see a more complete applicable context or to extract whole
functions.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-01 16:09:15 -07:00
Junio C Hamano
e06130c54c Merge branch 'vi/make-test-vector-less-specific'
* vi/make-test-vector-less-specific:
  tests: cleanup binary test vector files
2011-08-01 15:00:38 -07:00
Junio C Hamano
8ab19bc5de Merge branch 'jk/clone-detached'
* jk/clone-detached:
  clone: always fetch remote HEAD
  make copy_ref globally available
  consider only branches in guess_remote_head
  t: add tests for cloning remotes with detached HEAD
2011-08-01 15:00:35 -07:00
Junio C Hamano
59d9ba869e Merge branch 'sr/transport-helper-fix'
* sr/transport-helper-fix: (21 commits)
  transport-helper: die early on encountering deleted refs
  transport-helper: implement marks location as capability
  transport-helper: Use capname for refspec capability too
  transport-helper: change import semantics
  transport-helper: update ref status after push with export
  transport-helper: use the new done feature where possible
  transport-helper: check status code of finish_command
  transport-helper: factor out push_update_refs_status
  fast-export: support done feature
  fast-import: introduce 'done' command
  git-remote-testgit: fix error handling
  git-remote-testgit: only push for non-local repositories
  remote-curl: accept empty line as terminator
  remote-helpers: export GIT_DIR variable to helpers
  git_remote_helpers: push all refs during a non-local export
  transport-helper: don't feed bogus refs to export push
  git-remote-testgit: import non-HEAD refs
  t5800: document some non-functional parts of remote helpers
  t5800: use skip_all instead of prereq
  t5800: factor out some ref tests
  ...
2011-08-01 15:00:14 -07:00
Junio C Hamano
1df561fb48 Merge branch 'jc/maint-reset-unmerged-path'
* jc/maint-reset-unmerged-path:
  reset [<commit>] paths...: do not mishandle unmerged paths
2011-08-01 15:00:08 -07:00
Junio C Hamano
62607e4813 Merge branch 'jl/maint-fetch-recursive-fix' into maint
* jl/maint-fetch-recursive-fix:
  fetch: Also fetch submodules in subdirectories in on-demand mode
2011-08-01 14:44:17 -07:00
Junio C Hamano
055f2c5d34 Merge branch 'jc/maint-1.7.3-checkout-describe' into maint
* jc/maint-1.7.3-checkout-describe:
  checkout -b <name>: correctly detect existing branch
2011-08-01 14:43:18 -07:00
Pete Wyckoff
4e2e6ce450 git-p4: commit time should be most recent p4 change time
When importing a repo, the time on the initial commit had been
just "now".  But this causes problems when trying to share among
git-p4 repos that were created identically, although at different
times.  Instead, use the time in the top-most p4 change as the
time for the git import commit.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Acked-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-01 10:24:20 -07:00
Pete Wyckoff
eab30818a9 git-p4: one test missing config git-p4.skipSubmitEditCheck
Add this missing line in one of the tests.  Otherwise, on fast
machines, the following git-p4 commit will complain that nobody
edited the submission message.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Acked-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-01 10:24:15 -07:00
Pete Wyckoff
83cf0fe49f git-p4: add missing && in test
Signed-off-by: Pete Wyckoff <pw@padd.com>
Acked-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-01 10:23:54 -07:00
Pete Wyckoff
f40ae5cee6 git-p4: use test_when_finished in tests
Cleanup nicely when tests fail.  This avoids many duplicated
lines in the tests, and adds cleanup in a couple of tests that
did not have it.  When one fails, now all the rest will not
fail too.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Acked-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-01 10:23:38 -07:00
Junio C Hamano
b35acb5345 Merge branch 'maint'
* maint:
  Break down no-lstat() condition checks in verify_uptodate()
  t7400: fix bogus test failure with symlinked trash
  Documentation: clarify the invalidated tree entry format
2011-07-31 18:57:32 -07:00
Jeff King
dd008b3b11 t7400: fix bogus test failure with symlinked trash
One of the tests in t7400 fails if the trash directory has a
symlink anywhere in its path. E.g.:

  $ mkdir /tmp/git-test
  $ mkdir /tmp/git-test/real
  $ ln -s real /tmp/git-test/link

  $ ./t7400-submodule-basic --root=/tmp/git-test/real
  ...
  # passed all 44 test(s)

  $ ./t7400-submodule-basic --root=/tmp/git-test/link
  ...
  not ok - 41 use superproject as upstream when path is relative and no url is set there

The failing test does:

  git submodule add ../repo relative &&
  ...
  git submodule sync relative &&
  test "$(git config submodule.relative.url)" = "$submodurl/repo"

where $submodurl comes from the $TRASH_DIRECTORY the user
gave us. However, git will resolve symlinks when converting
the relative path into an absolute one, leading them to be
textually different (even though they point to the same
directory).

Fix this by asking pwd to canonicalize the name of the trash
directory for us.

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-31 18:40:34 -07:00
Jens Lehmann
7e60407f7a submodule: update and add must honor --quiet flag
When using the --quiet flag "git submodule update" and "git submodule add"
didn't behave as the documentation stated. They printed progress output
from the clone, even though they should only print error messages.

Fix that by passing the -q flag to git clone in module_clone() when the
GIT_QUIET variable is set. Two tests in t7400 have been modified to test
that behavior.

Reported-by: Daniel Holtmann-Rice <flyingtabmow@gmail.com>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-28 12:48:26 -07:00
Jon Seymour
04f89259a6 Ensure git ls-tree exits with a non-zero exit code if read_tree_recursive fails.
In the case of a corrupt repository, git ls-tree may report an error but
presently it exits with a code of 0.

This change uses the return code of read_tree_recursive instead.

Improved-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-25 10:50:11 -07:00
Junio C Hamano
4db0d0d1ba Merge branch 'maint'
* maint:
  tests: print failed test numbers at the end of the test run
2011-07-24 16:23:01 -07:00
Jens Lehmann
2579e1d293 tests: print failed test numbers at the end of the test run
On modern multi-core processors "make test" is often run in multiple jobs.
If one of them fails the test run does stop, but the concurrently running
tests finish their run. It is rather easy to find out which test failed by
doing a "ls -d t/trash*". But that only works when you don't use the "-i"
option to "make test" because you want to get an overview of all failing
tests. In that case all thrash directories are deleted end and the
information which tests failed is lost.

If one or more tests failed, print a list of them before the test summary:

failed test(s): t1000 t6500

fixed   0
success 7638
failed  3
broken  49
total   7723

This makes it possible to just run the test suite with -i and collect all
failed test scripts at the end for further examination.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-24 11:55:14 -07:00
Jon Seymour
6c1c14480d Add a test to check that git ls-tree sets non-zero exit code on error.
Expected to fail at this commit, fixed by subsequent commit.

Additional tests of adhoc or uncategorised nature should be added to this
file.

Improved-by: Jens Lehmann <Jens.Lehmann@web.de>
Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-24 11:48:24 -07:00
Junio C Hamano
22f41286be Merge branch 'dc/stash-con-untracked'
* dc/stash-con-untracked:
  stash: Add --include-untracked option to stash and remove all untracked files

Conflicts:
	git-stash.sh
2011-07-22 14:46:28 -07:00
Junio C Hamano
c56dce3b81 Merge branch 'jl/submodule-add-relurl-wo-upstream'
* jl/submodule-add-relurl-wo-upstream:
  submodule add: clean up duplicated code
  submodule add: allow relative repository path even when no url is set
  submodule add: test failure when url is not configured in superproject

Conflicts:
	git-submodule.sh
2011-07-22 14:24:35 -07:00
Jeff King
d04520e344 reset: give better reflog messages
The reset command creates its reflog entry from argv.
However, it does so after having run parse_options, which
means the only thing left in argv is any non-option
arguments. Thus you would end up with confusing reflog
entries like:

  $ git reset --hard HEAD^
  $ git reset --soft HEAD@{1}
  $ git log -2 -g --oneline
  8e46cad HEAD@{0}: HEAD@{1}: updating HEAD
  1eb9486 HEAD@{1}: HEAD^: updating HEAD

However, we must also consider that some scripts may set
GIT_REFLOG_ACTION before calling reset, and we need to show
their reflog action (with our text appended). For example:

  rebase -i (squash): updating HEAD

On top of that, we also set the ORIG_HEAD reflog action
(even though it doesn't generally exist). In that case, the
reset argument is somewhat meaningless, as it has nothing to
do with what's in ORIG_HEAD.

This patch changes the reset reflog code to show:

  $GIT_REFLOG_ACTION: updating {HEAD,ORIG_HEAD}

as before, but only if GIT_REFLOG_ACTION is set. Otherwise,
show:

   reset: moving to $rev

for HEAD, and:

   reset: updating ORIG_HEAD

for ORIG_HEAD (this is still somewhat superfluous, since we
are in the ORIG_HEAD reflog, obviously, but at least we now
mention which command was used to update it).

While we're at it, we can clean up the code a bit:

 - Use strbufs to make the message.

 - Use the "rev" parameter instead of showing all options.
   This makes more sense, since it is the only thing
   impacting the writing of the ref.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-22 13:54:57 -07:00
Josh Triplett
bf7930caa0 ref namespaces: tests
Test pushing, pulling, and mirroring of repositories with ref
namespaces.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-21 14:10:42 -07:00
Jeff King
5232586c79 improve httpd auth tests
These just checked that we could clone a repository when the
username and password were given in the URL; we should also
check that git will prompt when no or partial credentials
are given.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-20 11:38:34 -07:00
Vitaliy Ivanov
b5967f820c tests: cleanup binary test vector files
The test4012.png test vector file that was originally used for t4012 to
check operations on binary files was later reused in other tests, making
it no longer consistent to name it after a specific test. Rename it to more
generic "test-binary-1.png".

While at it, rename test9200b to "test-binary-2.png" (even though it is
only used by t9200).

Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 12:04:47 -07:00
Sverre Rabbelier
9504bc9d5a transport-helper: change import semantics
Currently the helper must somehow guess how many import statements to
read before it starts outputting its fast-export stream. This is
because the remote helper infrastructure runs fast-import only once,
so the helper is forced to output one stream for all import commands
it will receive. The only reason this worked in the past was because
only one ref was imported at a time.

Change the semantics of the import statement such that it matches
that of the push statement. That is, the import statement is followed
by a series of import statements that are terminated by a '\n'.

Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:48 -07:00
Sverre Rabbelier
be56862f19 fast-import: introduce 'done' command
Add a 'done' command that causes fast-import to stop reading from the
stream and exit.

If the new --done command line flag was passed on the command line
(or a "feature done" declaration included at the start of the stream),
make the 'done' command mandatory.  So "git fast-import --done"'s
input format will be prefix-free, making errors easier to detect when
they show up as early termination at some convenient time of the
upstream of a pipe writing to fast-import.

Another possible application of the 'done' command would to be allow a
fast-import stream that is only a small part of a larger encapsulating
stream to be easily parsed, leaving the file offset after the "done\n"
so the other application can pick up from there.  This patch does not
teach fast-import to do that --- fast-import still uses buffered input
(stdio).

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:47 -07:00
Jeff King
b4b872994b git_remote_helpers: push all refs during a non-local export
When a remote helper exports to a non-local git repo, the
steps are roughly:

  1. fast-export into a local staging area; the set of
     interesting refs is defined by what is in the fast-export
     stream

  2. git push from the staging area to the non-local repo

In the second step, we should explicitly push all refs, not
just matching ones. This will let us push refs that do not
yet exist in the remote repo.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:47 -07:00
Jeff King
3ea7d09461 transport-helper: don't feed bogus refs to export push
When we want to push to a remote helper that has the
"export" capability, we collect all of the refs we want to
push and then feed them to fast-export.

However, the list of refs is actually a list of remote refs,
not local refs. The mapped local refs are included via the
peer_ref pointer. So when we add an argument to our
fast-export command line, we must be sure to use the local
peer_ref name (and if there is no local name, it is because
we are not actually sending that ref, or we may not even
have the ref at all).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:47 -07:00
Jeff King
4e51ba238f git-remote-testgit: import non-HEAD refs
Upon receiving an "import" command, the testgit remote
helper would ignore the ref asked for by git and generate a
fast-export stream based on HEAD. Instead, we should
actually give git the ref it asked for.

This requires adding a new parameter to the export_repo
method in the remote-helpers python library, which may be
used by code outside of git.git. We use a default parameter
so that callers without the new parameter will get the same
behavior as before.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:47 -07:00
Jeff King
c00dd33b1f t5800: document some non-functional parts of remote helpers
These are all things one might expect to work in a helper
that is capable of handling multiple branches (which our
testgit helper in theory should be able to do, as it is
backed by git). All of these bugs are specific to the
import/export codepaths, so they don't affect helpers like
git-remote-curl that use fetch/push commands.

The first and fourth tests are about fetching and pushing
new refs, and demonstrate bugs in the git_remote_helpers
library (so they would be most likely to impact helpers for
other VCSs which import/export git).

The second test is about importing multiple refs; it
demonstrates a bug in git-remote-testgit, which is mostly
for exercising the test code. Therefore it probably doesn't
affect anyone in practice.

The third test demonstrates a bug in git's side of the
helper code when the upstream has added refs that we do not
have locally. This could impact git users who use remote
helpers to access foreign VCSs.

All of those bugs have fixes later in this series.

The fifth test is the most complex, and does not have a fix
in this series. It tests pushing a ref via the export
mechanism to a new name on the remote side (i.e.,
"git push $remote old:new").

The problem is that we push all of the work of generating
the export stream onto fast-export, but we have no way of
communicating to fast-export that this name mapping is
happening. So we tell fast-export to generate a stream with
the commits for "old", but we can't tell it to label them
all as "new".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:47 -07:00
Sverre Rabbelier
760fec7d7e t5800: use skip_all instead of prereq
All tests require python 2.4 or higher.

Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19 11:17:46 -07:00