1
0
mirror of https://github.com/git/git.git synced 2025-03-29 12:35:02 +00:00

8582 Commits

Author SHA1 Message Date
Nguyễn Thái Ngọc Duy
9f673f9477 gc: config option for running --auto in background
`gc --auto` takes time and can block the user temporarily (but not any
less annoyingly). Make it run in background on systems that support
it. The only thing lost with running in background is printouts. But
gc output is not really interesting. You can keep it in foreground by
changing gc.autodetach.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-10 10:46:37 -08:00
Nguyễn Thái Ngọc Duy
ff62eca7d1 fetch-pack: fix deepen shallow over smart http with no-done cap
In smart http, upload-pack adds new shallow lines at the beginning of
each rpc response. Only shallow lines from the first rpc call are
useful. After that they are thrown away. It's designed this way
because upload-pack is stateless and has no idea when its shallow
lines are helpful or not.

So after refs are negotiated with multi_ack_detailed and the server
thinks it learned enough, it sends "ACK obj-id ready", terminates the
rpc call and waits for the final rpc round. The client sends "done".
The server sends another response, which also has shallow lines at
the beginning, and the last "ACK obj-id" line.

When no-done is active, the last round is cut out, the server sends
"ACK obj-id ready" and "ACK obj-id" in the same rpc
response. fetch-pack is updated to recognize this and not send
"done". However it still tries to consume shallow lines, which are
never sent.

Update the code, make sure to skip consuming shallow lines when
no-done is enabled.

Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-10 10:21:33 -08:00
Nguyễn Thái Ngọc Duy
a87679339c test: rename http fetch and push test files
Make clear which one is for dumb protocol, which one is for smart from
their file name.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-10 10:21:06 -08:00
Jeff King
3bb486e439 tests: auto-set LIB_HTTPD_PORT from test name
We set the default apache port for each of the httpd tests
to the 4-digit test number of the test script. We want these
to remain unique so that the tests do not conflict with each
other when run in parallel.

Instead of doing it manually in each test script, let's just
set it from the test name at run time. This is simpler, and
is one less thing to be updated when test scripts are
renamed (e.g., when being re-rolled or when conflicting
after being merged with another topic).

Incidentally, this fixes a case where t5537 and t5538 used
the same port number (5537), and could conflict with each
other when run in parallel.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-10 10:20:45 -08:00
Junio C Hamano
c256661bbe Merge branch 'aj/ada-diff-word-pattern'
* aj/ada-diff-word-pattern:
  userdiff: update Ada patterns
2014-02-07 11:55:10 -08:00
Junio C Hamano
cdbf623254 check-attr: move to the top of working tree when in non-bare repository
Lasse Makholm noticed that running "git check-attr" from a place
totally unrelated to $GIT_DIR and $GIT_WORK_TREE does not give
expected results.  I think it is because the command does not say it
wants to call setup_work_tree().

We still need to support use cases where only a bare repository is
involved, so unconditionally requiring a working tree would not work
well.  Instead, make a call only in a non-bare repository.

We may want to see if we want to do a similar fix in the opposite
direction to check-ignore.  The command unconditionally requires a
working tree, but it should be usable in a bare repository just like
check-attr attempts to be.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-06 10:19:33 -08:00
Junio C Hamano
c4a7bce1b5 t0003: do not chdir the whole test process
Moving to some other directory and letting the remainder of the test
pieces to expect that they start there is a bad practice.  The test
that contains chdir itself may fail (or by mistake skipped via the
GIT_SKIP_TESTS mechanism) in which case the remainder may operate on
files in unexpected places.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-06 10:16:27 -08:00
Nguyễn Thái Ngọc Duy
b4b313f94a reset: support "--mixed --intent-to-add" mode
When --mixed is used, entries could be removed from index if the
target ref does not have them. When "reset" is used in preparation for
commit spliting (in a dirty worktree), it could be hard to track what
files to be added back. The new option --intent-to-add simplifies it
by marking all removed files intent-to-add.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
2014-02-05 16:44:51 -08:00
Junio C Hamano
a74a682b55 Merge branch 'ow/stash-with-ifs' into maint
The implementation of 'git stash $cmd "stash@{...}"' did not quote
the stash argument properly and left it split at IFS whitespace.

* ow/stash-with-ifs:
  stash: handle specifying stashes with $IFS
2014-02-05 14:03:20 -08:00
Junio C Hamano
3c864743a6 Merge branch 'js/lift-parent-count-limit' into maint
There is no reason to have a hardcoded upper limit of the number of
parents for an octopus merge, created via the graft mechanism, but
there was.

* js/lift-parent-count-limit:
  Remove the line length limit for graft files
2014-02-05 14:03:01 -08:00
Junio C Hamano
ee5788e306 Merge branch 'nd/add-empty-fix' into maint
"git add -A" (no other arguments) in a totally empty working tree
used to emit an error.

* nd/add-empty-fix:
  add: don't complain when adding empty project root
2014-02-05 14:02:44 -08:00
Junio C Hamano
d11ade701a Merge branch 'bc/log-decoration' into maint
"git log --decorate" did not handle a tag pointed by another tag
nicely.

* bc/log-decoration:
  log: properly handle decorations with chained tags
2014-02-05 14:02:05 -08:00
Junio C Hamano
a118beeddf Merge branch 'jl/commit-v-strip-marker' into maint
"git commit -v" appends the patch to the log message before
editing, and then removes the patch when the editor returned
control. However, the patch was not stripped correctly when the
first modified path was a submodule.

* jl/commit-v-strip-marker:
  commit -v: strip diffs and submodule shortlogs from the commit message
2014-02-05 14:01:09 -08:00
Junio C Hamano
1a111957b3 Merge branch 'tb/clone-ssh-with-colon-for-port' into maint
Remote repository URL expressed in scp-style host:path notation are
parsed more carefully (e.g. "foo/bar:baz" is local, "[::1]:/~user" asks
to connect to user's home directory on host at address ::1.

* tb/clone-ssh-with-colon-for-port:
  git_connect(): use common return point
  connect.c: refactor url parsing
  git_connect(): refactor the port handling for ssh
  git fetch: support host:/~repo
  t5500: add test cases for diag-url
  git fetch-pack: add --diag-url
  git_connect: factor out discovery of the protocol and its parts
  git_connect: remove artificial limit of a remote command
  t5601: add tests for ssh
  t5601: remove clear_ssh, refactor setup_ssh_wrapper
2014-02-05 13:59:16 -08:00
Adrian Johnson
39a87a29ce userdiff: update Ada patterns
- Allow extra space in "is new" and "is separate"
- Fix bug in word regex for numbers

Signed-off-by: Adrian Johnson <ajohnson@redneon.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-05 10:45:51 -08:00
Martin Erik Werner
655ee9ea3e setup: don't dereference in-tree symlinks for absolute paths
The prefix_path_gently() function currently applies real_path to
everything if given an absolute path, dereferencing symlinks both
outside and inside the work tree.

This causes most high-level functions to misbehave when acting on
symlinks given via absolute paths. For example

	$ git add /dir/repo/symlink

attempts to add the target of the symlink rather than the symlink
itself, which is usually not what the user intends to do.

In order to manipulate symlinks in the work tree using absolute paths,
symlinks should only be dereferenced outside the work tree.

Modify the prefix_path_gently() to first normalize the path in order to
make sure path levels are separated by '/', then pass the result to
'abspath_part_inside_repo' to find the part inside the work tree
(without dereferencing any symlinks inside the work tree).

For absolute paths, prefix_path_gently() did not, nor does now do, any
actual prefixing, hence the result from abspath_part_in_repo() is
returned as-is.

Fixes t0060-82 and t3004-5.

Signed-off-by: Martin Erik Werner <martinerikwerner@gmail.com>
Reviewed-by: Duy Nguyen <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-04 12:08:49 -08:00
Martin Erik Werner
e131daa4c6 t0060: add tests for prefix_path when path begins with work tree
One edge-case that isn't currently checked in the tests is the beginning
of the path matching the work tree, despite the target not actually
being the work tree, for example:

  path = /dir/repoa
  work_tree = /dir/repo

should fail since the path is outside the repo. However, if /dir/repoa
is in fact a symlink that points to /dir/repo, it should instead
succeed.

Add two tests covering these cases, since they might be potential
regression points.

Signed-off-by: Martin Erik Werner <martinerikwerner@gmail.com>
Reviewed-by: Duy Nguyen <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-04 12:08:47 -08:00
Martin Erik Werner
e5aa1fc472 t0060: add test for prefix_path when path == work tree
The current behaviour of prefix_path is to return an empty string if
prefixing and absolute path that only contains exactly the work tree.
This behaviour is a potential regression point.

Signed-off-by: Martin Erik Werner <martinerikwerner@gmail.com>
Reviewed-by: Duy Nguyen <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-04 11:25:33 -08:00
Martin Erik Werner
74af95d6aa t0060: add test for prefix_path on symlinks via absolute paths
When symlinks in the working tree are manipulated using the absolute
path, git dereferences them, and tries to manipulate the link target
instead.

This applies to most high-level commands but prefix_path is the common
denominator for all of them.

Add a known-breakage tests using the prefix_path function, which
currently uses real_path, causing the dereference.

Signed-off-by: Martin Erik Werner <martinerikwerner@gmail.com>
Reviewed-by: Duy Nguyen <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-04 11:25:15 -08:00
Junio C Hamano
f02033f1d0 t3004: add test for ls-files on symlinks via absolute paths
When symlinks in the working tree are manipulated using the absolute
path, git dereferences them, and tries to manipulate the link target
instead.

This causes most high-level functions to misbehave when acting on
symlinks given via absolute paths. For example

  $ git add /dir/repo/symlink

attempts to add the target of the symlink rather than the symlink
itself, which is usually not what the user intends to do.

This is a regression introduced by 18e051a:
  setup: translate symlinks in filename when using absolute paths
(which did not take symlinks inside the work tree into consideration).

Add a known-breakage test using the ls-files function, checking both if
the symlink leads to a target in the same directory, and a target in the
above directory.

Signed-off-by: Martin Erik Werner <martinerikwerner@gmail.com>
Tested-by: Martin Erik Werner <martinerikwerner@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-04 11:24:53 -08:00
Nguyễn Thái Ngọc Duy
b19c12e6ed t7101, t7014: rename test files to indicate what that file is for
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-04 10:49:10 -08:00
Junio C Hamano
3de92cd16d Merge branch 'jn/pager-lv-default-env'
A finishing touch to its test.

* jn/pager-lv-default-env:
  pager test: make fake pager consume all its input
2014-01-31 10:51:57 -08:00
Jonathan Nieder
52c02f658e pager test: make fake pager consume all its input
Otherwise there is a race: if 'git log' finishes writing before the
pager terminates and closes the pipe, all is well, and if the pager
finishes quickly enough then 'git log' terminates with SIGPIPE.

 died of signal 13 at /build/buildd/git-1.9~rc1/t/test-terminal.perl line 33.
 not ok 6 - LESS and LV envvars are set for pagination

Noticed on Ubuntu PPA builders, where the race was lost about half the
time.  Compare v1.7.0.2~6^2 (tests: Fix race condition in t7006-pager,
2010-02-22).

Reported-by: Anders Kaseorg <andersk@MIT.EDU>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-31 09:07:17 -08:00
Junio C Hamano
8bba7206b5 Merge branch 'as/tree-walk-fix-aggressive-short-cut'
* as/tree-walk-fix-aggressive-short-cut:
  tree_entry_interesting: match against all pathspecs
2014-01-27 10:48:32 -08:00
Junio C Hamano
cdc40bdb69 Merge branch 'jk/test-fixes'
* jk/test-fixes:
  t7700: do not use "touch" unnecessarily
  t7501: fix "empty commit" test with NO_PERL
2014-01-27 10:45:46 -08:00
Junio C Hamano
017f804efc Merge branch 'nd/negative-pathspec'
* nd/negative-pathspec:
  tree-walk.c: ignore trailing slash on submodule in tree_entry_interesting()
2014-01-27 10:45:44 -08:00
Junio C Hamano
523f0a25b9 Merge branch 'pw/git-p4'
Various "git p4" updates.

* pw/git-p4:
  git p4 doc: use two-line style for options with multiple spellings
  git p4 test: examine behavior with locked (+l) files
  git p4: fix an error message when "p4 where" fails
  git p4: handle files with wildcards when doing RCS scrubbing
  git p4 test: do not pollute /tmp
  git p4 test: run as user "author"
  git p4 test: is_cli_file_writeable succeeds
  git p4 test: explicitly check p4 wildcard delete
  git p4: work around p4 bug that causes empty symlinks
  git p4 test: ensure p4 symlink parsing works
  git p4 test: wildcards are supported
2014-01-27 10:45:41 -08:00
Junio C Hamano
a6bec00145 Merge branch 'jk/mark-edges-uninteresting'
Fix performance regression in v1.8.4.x and later.

* jk/mark-edges-uninteresting:
  list-objects: only look at cmdline trees with edge_hint
  t/perf: time rev-list with UNINTERESTING commits
2014-01-27 10:45:08 -08:00
Junio C Hamano
4e9f9320e3 Merge branch 'jk/interpret-branch-name-fix'
Fix a handful of bugs around interpreting $branch@{upstream}
notation and its lookalike, when $branch part has interesting
characters, e.g. "@", and ":".

* jk/interpret-branch-name-fix:
  interpret_branch_name: find all possible @-marks
  interpret_branch_name: avoid @{upstream} past colon
  interpret_branch_name: always respect "namelen" parameter
  interpret_branch_name: rename "cp" variable to "at"
  interpret_branch_name: factor out upstream handling
2014-01-27 10:44:21 -08:00
Junio C Hamano
f583ace157 Merge branch 'jk/allow-fetch-onelevel-refname'
"git clone" would fail to clone from a repository that has a ref
directly under "refs/", e.g. "refs/stash", because different
validation paths do different things on such a refname.  Loosen the
client side's validation to allow such a ref.

* jk/allow-fetch-onelevel-refname:
  fetch-pack: do not filter out one-level refs
2014-01-27 10:44:14 -08:00
Junio C Hamano
63763273de Merge branch 'jc/revision-range-unpeel'
"git log --left-right A...B" lost the "leftness" of commits
reachable from A when A is a tag as a side effect of a recent
bugfix.  This is a regression in 1.8.4.x series.

* jc/revision-range-unpeel:
  revision: propagate flag bits from tags to pointees
  revision: mark contents of an uninteresting tree uninteresting
2014-01-27 10:44:10 -08:00
Andy Spencer
e4ddb05720 tree_entry_interesting: match against all pathspecs
The current basedir compare aborts early in order to avoid futile
recursive searches. However, a match may still be found by another
pathspec. This can cause an error while checking out files from a branch
when using multiple pathspecs:

$ git checkout master -- 'a/*.txt' 'b/*.txt'
error: pathspec 'a/*.txt' did not match any file(s) known to git.

Signed-off-by: Andy Spencer <andy753421@gmail.com>
Acked-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-27 09:01:50 -08:00
Jeff King
a0332337be t7700: do not use "touch" unnecessarily
Some versions of touch (such as /usr/ucb/touch on Solaris)
do not know about the "-r" option. This would make sense as
a feature of test-chmtime, but fortunately this fix is even
easier.

The test does not care about the timestamp of the .keep file it
creates at all, only that it exists. For such a use case, with or
without portability issues around "-r", "touch" should not be used
in the first place.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-23 13:13:20 -08:00
Jeff King
088304bf73 t7501: fix "empty commit" test with NO_PERL
t7501.9 tries to check that "git commit" will fail when the
index is unchanged. It relies on previous tests not to have
modified the index. When it was originally written, this was
always the case. However, commit c65dc35 (t7501: test the
right kind of breakage, 2012-03-30) changed earlier tests (4
and 5) to leave a modification in the index.

We never noticed, however, because t7501.7, between the two,
clears the index state as a side effect. However, that test
depends on the PERL prerequisite, and so it does not always
run. Therefore if NO_PERL is set, we do not run the
intervening test, the index is left unclean, and t7501.9
fails.

We could fix this by moving t7501.9 up in the script.
However, this patch instead leaves it in place and adds a
"git reset" before the commit. This makes the test more
explicit about its preconditions, and will future-proof it
against any other changes in the test state.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-23 13:11:07 -08:00
Nguyễn Thái Ngọc Duy
74b4f7f277 tree-walk.c: ignore trailing slash on submodule in tree_entry_interesting()
We do ignore trailing slash on a directory, so pathspec "abc/" matches
directory "abc". A submodule is also a directory. Apply the same logic
to it. This makes "git log submodule-path" and "git log submodule-path/"
produce the same output.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-23 13:03:00 -08:00
Pete Wyckoff
3d5388afa8 git p4 test: examine behavior with locked (+l) files
The p4 server can enforce file locking, so that only one user
can edit a file at a time.  Git p4 is unable to submit changes
to locked files.  Currently it exits poorly.  Ideally it would
notice the locked condition and clean up nicely.

Add a bunch of tests that describe the problem, hoping that
fixes appear in the future.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-22 08:06:19 -08:00
Pete Wyckoff
79467e61aa git p4: handle files with wildcards when doing RCS scrubbing
Commit 9d7d446 (git p4: submit files with wildcards, 2012-04-29)
fixed problems with handling files that had p4 wildcard
characters, like "@" and "*".  But it missed one case, that of
RCS keyword scrubbing, which uses "p4 fstat" to extract type
information.  Fix it by calling wildcard_encode() on the raw
filename.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-22 08:06:19 -08:00
Pete Wyckoff
0cf1b72a38 git p4 test: do not pollute /tmp
Generating the submit template for p4 uses tempfile.mkstemp(),
which by default puts files in /tmp.  For a test that fails,
possibly on purpose, this is not cleaned up.  Run with TMPDIR
pointing into the trash directory so the temp files go away
with the test results.

To do this required some other minor changes.  First, the editor
is launched using system(editor + " " + template_file), using
shell expansion to build the command string.  This doesn't work
if editor has a space in it.  And is generally unwise as it's
easy to fool the shell into doing extra work.  Exec the args
directly, without shell expansion.

Second, without shell expansion, the trick of "P4EDITOR=:" used
in the tests doesn't work.  Use a real command, true, as the
non-interactive editor for testing.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-22 08:06:19 -08:00
Pete Wyckoff
0055b56e10 git p4 test: run as user "author"
The tests use author@example.com as the canonical submitter,
but he does not have an entry in the p4 users database.
This causes the generated change description to complain
that the git and p4 users disagree.  The complaint message
is still valid, but isn't useful in tests.  It was introduced
in 848de9c (git-p4: warn if git authorship won't be retained,
2011-05-13).

Fix t9813 to use @example.com instead of @localhost due to
change in p4_add_user().  Move the function into the git p4
test library so author can be added at initialization time.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-22 08:05:27 -08:00
Pete Wyckoff
0577849d2b git p4 test: is_cli_file_writeable succeeds
Commit e9df0f9 (git p4: cygwin p4 client does not mark read-only,
2013-01-26) fixed a problem with "test -w" on cygwin, but mistakenly
marked the new test as failing.  Fix this.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-22 08:05:26 -08:00
Pete Wyckoff
630c4f19f0 git p4 test: explicitly check p4 wildcard delete
There was no test where p4 deleted a file with a wildcard
character.  Make sure git p4 applies the wildcard decoding
properly when importing a delete that includes a wildcard.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-22 08:05:26 -08:00
Pete Wyckoff
40f846c35c git p4: work around p4 bug that causes empty symlinks
Damien Gérard highlights an interesting problem.  Some p4
repositories end up with symlinks that have an empty target.  It
is not possible to create this with current p4, but they do
indeed exist.

The effect in git p4 is that "p4 print" on the symlink returns an
empty string, confusing the curret symlink-handling code.

Such broken repositories cause problems in p4 as well, even with
no git involved.  In p4, syncing to a change that includes a
bogus symlink causes errors:

    //depot/empty-symlink - updating /home/me/p4/empty-symlink
    rename: /home/me/p4/empty-symlink: No such file or directory

and leaves no symlink.

In git, replicate the p4 behavior by ignoring these bad symlinks.
If, in a later p4 revision, the symlink happens to point to
something non-null, the symlink will be replaced properly.

Add a big test for all this too.

This happens to be a regression introduced by 1292df1 (git-p4:
Fix occasional truncation of symlink contents., 2013-08-08) and
appeared first in 1.8.5.  But it shows up only in p4 repositories
of dubious character, so can wait for a proper release.

Tested-by: Damien Gérard <damien@iwi.me>
Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-22 08:05:04 -08:00
Pete Wyckoff
a8d8e382a9 git p4 test: ensure p4 symlink parsing works
While this happens to work, there was no test to make sure
that the basic importing of a symlink from p4 to git functioned.

Add a simple test to create a symlink in p4 and import it into git,
then verify that the symlink exists and has the correct target.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-21 15:50:27 -08:00
Pete Wyckoff
16168986eb git p4 test: wildcards are supported
Since 9d57c4a (git p4: implement view spec wildcards with "p4
where", 2013-08-30), all the wildcard types should be supported.
Change must-fail tests to mark that they now pass.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-21 15:50:27 -08:00
Jeff King
ea97002fc9 t/perf: time rev-list with UNINTERESTING commits
We time a straight "rev-list --all" and its "--object"
counterpart, both going all the way to the root. However, we
do not time a partial history walk. This patch adds an
extreme case: a walk over a very small slice of history, but
with a very large set of UNINTERESTING tips. This is similar
to the connectivity check run by git on a small fetch, or
the walk done by any pre-receive hooks that want to check
incoming commits.

This test reveals a performance regression in git v1.8.4.2,
caused by fbd4a70 (list-objects: mark more commits as edges
in mark_edges_uninteresting, 2013-08-16):

Test                                             fbd4a703^         fbd4a703
------------------------------------------------------------------------------------------
0001.1: rev-list --all                           0.69(0.67+0.02)   0.69(0.68+0.01) +0.0%
0001.2: rev-list --all --objects                 3.47(3.44+0.02)   3.48(3.44+0.03) +0.3%
0001.4: rev-list $commit --not --all             0.04(0.04+0.00)   0.04(0.04+0.00) +0.0%
0001.5: rev-list --objects $commit --not --all   0.04(0.03+0.00)   0.27(0.24+0.02) +575.0%

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-21 14:46:17 -08:00
Junio C Hamano
92251b1b5b Merge branch 'nd/shallow-clone'
Fetching from a shallow-cloned repository used to be forbidden,
primarily because the codepaths involved were not carefully vetted
and we did not bother supporting such usage. This attempts to allow
object transfer out of a shallow-cloned repository in a controlled
way (i.e. the receiver become a shallow repository with truncated
history).

* nd/shallow-clone: (31 commits)
  t5537: fix incorrect expectation in test case 10
  shallow: remove unused code
  send-pack.c: mark a file-local function static
  git-clone.txt: remove shallow clone limitations
  prune: clean .git/shallow after pruning objects
  clone: use git protocol for cloning shallow repo locally
  send-pack: support pushing from a shallow clone via http
  receive-pack: support pushing to a shallow clone via http
  smart-http: support shallow fetch/clone
  remote-curl: pass ref SHA-1 to fetch-pack as well
  send-pack: support pushing to a shallow clone
  receive-pack: allow pushes that update .git/shallow
  connected.c: add new variant that runs with --shallow-file
  add GIT_SHALLOW_FILE to propagate --shallow-file to subprocesses
  receive/send-pack: support pushing from a shallow clone
  receive-pack: reorder some code in unpack()
  fetch: add --update-shallow to accept refs that update .git/shallow
  upload-pack: make sure deepening preserves shallow roots
  fetch: support fetching from a shallow repository
  clone: support remote shallow repository
  ...
2014-01-17 12:21:20 -08:00
David Aguilar
b814da891e pull: add pull.ff configuration
Add a `pull.ff` configuration option that is analogous
to the `merge.ff` option.

This allows us to control the fast-forward behavior for
pull-initiated merges only.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-15 16:01:06 -08:00
Junio C Hamano
a74352867e revision: propagate flag bits from tags to pointees
With the previous fix 895c5ba3 (revision: do not peel tags used in
range notation, 2013-09-19), handle_revision_arg() that processes
command line arguments for the "git log" family of commands no
longer directly places the object pointed by the tag in the pending
object array when it sees a tag object.  We used to place pointee
there after copying the flag bits like UNINTERESTING and
SYMMETRIC_LEFT.

This change meant that any flag that is relevant to later history
traversal must now be propagated to the pointed objects (most often
these are commits) while starting the traversal, which is partly
done by handle_commit() that is called from prepare_revision_walk().
We did propagate UNINTERESTING, but did not do so for others, most
notably SYMMETRIC_LEFT.  This caused "git log --left-right v1.0..."
(where "v1.0" is a tag) to start losing the "leftness" from the
commit the tag points at.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-15 15:53:51 -08:00
Junio C Hamano
2ac5e4470b revision: mark contents of an uninteresting tree uninteresting
"git rev-list --objects ^A^{tree} B^{tree}" ought to mean "I want a
list of objects inside B's tree, but please exclude the objects that
appear inside A's tree".

we see the top-level tree marked as uninteresting (i.e. ^A^{tree} in
the above example) and call mark_tree_uninteresting() on it; this
unfortunately prevents us from recursing into the tree and marking
the objects in the tree as uninteresting.

The reason why "git log ^A A" yields an empty set of commits,
i.e. we do not have a similar issue for commits, is because we call
mark_parents_uninteresting() after seeing an uninteresting commit.
The uninteresting-ness of the commit itself does not prevent its
parents from being marked as uninteresting.

Introduce mark_tree_contents_uninteresting() and structure the code
in handle_commit() in such a way that it makes it the responsibility
of the callchain leading to this function to mark commits, trees and
blobs as uninteresting, and also make it the responsibility of the
helpers called from this function to mark objects that are reachable
from them.

Note that this is a very old bug that probably dates back to the day
when "rev-list --objects" was introduced.  The line to clear
tree->object.parsed at the end of mark_tree_contents_uninteresting()
can be removed when this fix is merged to the codebase after
6e454b9a (clear parsed flag when we free tree buffers, 2013-06-05).

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-15 15:48:58 -08:00
Jeff King
9892d5d454 interpret_branch_name: find all possible @-marks
When we parse a string like "foo@{upstream}", we look for
the first "@"-sign, and check to see if it is an upstream
mark. However, since branch names can contain an @, we may
also see "@foo@{upstream}". In this case, we check only the
first @, and ignore the second. As a result, we do not find
the upstream.

We can solve this by iterating through all @-marks in the
string, and seeing if any is a legitimate upstream or
empty-at mark.

Another strategy would be to parse from the right-hand side
of the string. However, that does not work for the
"empty_at" case, which allows "@@{upstream}". We need to
find the left-most one in this case (and we then recurse as
"HEAD@{upstream}").

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-15 12:51:14 -08:00