Commit graph

5998 commits

Author SHA1 Message Date
Junio C Hamano
e147e9693a Merge branch 'cb/receive-pack-keep-errors' into maint
* cb/receive-pack-keep-errors:
  do not override receive-pack errors
2012-02-21 15:14:41 -08:00
Junio C Hamano
c7707a4354 Merge branch 'cb/transfer-no-progress' into maint
* cb/transfer-no-progress:
  push/fetch/clone --no-progress suppresses progress output
2012-02-21 15:14:37 -08:00
Junio C Hamano
0cfba96121 Merge branch 'jk/git-dir-lookup' into maint
* jk/git-dir-lookup:
  standardize and improve lookup rules for external local repos
2012-02-21 15:13:16 -08:00
Junio C Hamano
1e2545c687 Merge branch 'cb/maint-rev-list-verify-object' into maint
* cb/maint-rev-list-verify-object:
  git rev-list: fix invalid typecast
2012-02-21 14:59:35 -08:00
Junio C Hamano
c1ed5e6b14 Merge branch 'cb/maint-t5541-make-server-port-portable' into maint
* cb/maint-t5541-make-server-port-portable:
  t5541: check error message against the real port number used
2012-02-21 14:57:40 -08:00
Junio C Hamano
6f61eb2017 Merge branch 'jk/grep-binary-attribute' into maint
* jk/grep-binary-attribute:
  grep: pre-load userdiff drivers when threaded
  grep: load file data after checking binary-ness
  grep: respect diff attributes for binary-ness
  grep: cache userdiff_driver in grep_source
  grep: drop grep_buffer's "name" parameter
  convert git-grep to use grep_source interface
  grep: refactor the concept of "grep source" into an object
  grep: move sha1-reading mutex into low-level code
  grep: make locking flag global
2012-02-21 14:57:05 -08:00
Junio C Hamano
093b194cc5 Merge branch 'nd/diffstat-gramnum' into maint
* nd/diffstat-gramnum:
  Use correct grammar in diffstat summary line
2012-02-21 14:56:39 -08:00
Jakub Narebski
fc8fcd27e6 gitweb: Fix 'grep' search for multiple matches in file
Commit ff7f218 (gitweb: Fix file links in "grep" search, 2012-01-05),
added $file_href variable, to reduce duplication and have the fix
applied in single place.

Unfortunately it made variable defined inside the loop, not taking into
account the fact that $file_href was set only if file changed.
Therefore for files with multiple matches $file_href was undefined for
second and subsequent matches.

Fix this bug by moving $file_href declaration outside loop.

Adds tests for almost all forms of sarch in gitweb, which were missing
from testuite.  Note that it only tests if there are no warnings, and
it doesn't check that gitweb finds what it should find.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-19 22:21:35 -08:00
Junio C Hamano
147d071816 Merge branch 'jc/checkout-out-of-unborn' into maint
* jc/checkout-out-of-unborn:
  git checkout -b: allow switching out of an unborn branch
2012-02-16 14:18:06 -08:00
Junio C Hamano
6c63ab3ca7 Merge branch 'jc/maint-commit-ignore-i-t-a' into maint
* jc/maint-commit-ignore-i-t-a:
  commit: ignore intent-to-add entries instead of refusing

Conflicts:
	cache-tree.c
2012-02-16 14:08:00 -08:00
Junio C Hamano
a95750c4e8 Merge branch 'jk/maint-tag-show-fixes' into maint
* jk/maint-tag-show-fixes:
  tag: do not show non-tag contents with "-n"
  tag: die when listing missing or corrupt objects
  tag: fix output of "tag -n" when errors occur

Conflicts:
	t/t7004-tag.sh
2012-02-13 23:31:27 -08:00
Junio C Hamano
42e283a1bf Merge branch 'jn/merge-no-edit-fix' into maint
* jn/merge-no-edit-fix:
  merge: do not launch an editor on "--no-edit $tag"
2012-02-13 23:24:02 -08:00
Clemens Buchacher
ef7e93d908 do not override receive-pack errors
Receive runs rev-list --verify-objects in order to detect missing
objects. However, such errors are ignored and overridden later.
Instead, consequently ignore all update commands for which an error has
already been detected.

Some tests in t5504 are obsoleted by this change, because invalid
objects are detected even if fsck is not enabled. Instead, they now test
for different error messages depending on whether or not fsck is turned
on. A better fix would be to force a corruption that will be detected by
fsck but not by rev-list.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-13 13:29:08 -08:00
Clemens Buchacher
d202a513a4 t5541: check error message against the real port number used
Otherwise the test cannot be run with custom port set to LIB_HTTPD_PORT.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-13 13:25:40 -08:00
Clemens Buchacher
01fdc21f6e push/fetch/clone --no-progress suppresses progress output
By default, progress output is disabled if stderr is not a terminal.
The --progress option can be used to force progress output anyways.
Conversely, --no-progress does not force progress output. In particular,
if stderr is a terminal, progress output is enabled.

This is unintuitive. Change --no-progress to force output off.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-13 13:06:53 -08:00
Clemens Buchacher
cb8da70547 git rev-list: fix invalid typecast
git rev-list passes rev_list_info, not rev_list objects. Without this
fix, rev-list enables or disables the --verify-objects option depending
on a read from an undefined memory location.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-13 12:49:15 -08:00
Junio C Hamano
87cb3b82a4 Merge branch 'jc/parse-date-raw' into maint
* jc/parse-date-raw:
  parse_date(): '@' prefix forces git-timestamp
  parse_date(): allow ancient git-timestamp
2012-02-13 11:42:15 -08:00
Junio C Hamano
5a62b531ae Merge branch 'jc/merge-ff-only-stronger-than-signed-merge' into maint
* jc/merge-ff-only-stronger-than-signed-merge:
  merge: do not create a signed tag merge under --ff-only option
2012-02-13 11:42:11 -08:00
Junio C Hamano
8eb865ba8a Merge branch 'jc/branch-desc-typoavoidance' into maint
* jc/branch-desc-typoavoidance:
  branch --edit-description: protect against mistyped branch name
  tests: add write_script helper function
2012-02-13 11:42:07 -08:00
Ævar Arnfjörð Bjarmason
1f5ad6b1a7 t: use sane_unset instead of unset
Change several tests to use the sane_unset function introduced in
v1.7.3.1-35-g00648ba instead of the built-in unset function.

This fixes a failure I was having on t9130-git-svn-authors-file.sh on
Solaris, and prevents several other issues from occurring.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-13 02:29:15 -08:00
Ævar Arnfjörð Bjarmason
d24fbca7a5 Remove Git's support for smoke testing
I'm no longer running the Git smoke testing service at
smoke.git.nix.is due to Smolder being a fragile piece of software not
having time to follow through on making it easy for third parties to
run and submit their own smoke tests.

So remove the support in Git for sending smoke tests to
smoke.git.nix.is, it's still easy to modify the test suite to submit
smokes somewhere else.

This reverts the following commits:

    Revert "t/README: Add SMOKE_{COMMENT,TAGS}= to smoke_report target" -- e38efac87d
    Revert "t/README: Document the Smoke testing" -- d15e9ebc5c
    Revert "t/Makefile: Create test-results dir for smoke target" -- 617344d77b
    Revert "tests: Infrastructure for Git smoke testing" -- b6b84d1b74

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-13 02:29:07 -08:00
Junio C Hamano
4fed4c809a Merge branch 'jc/maint-request-pull-for-tag' into maint
* jc/maint-request-pull-for-tag:
  request-pull: explicitly ask tags/$name to be pulled
2012-02-10 13:59:02 -08:00
Junio C Hamano
184a7aa7bf Merge branch 'tr/grep-l-with-decoration' into maint
* tr/grep-l-with-decoration:
  grep: fix -l/-L interaction with decoration lines
2012-02-10 13:59:02 -08:00
Junio C Hamano
5febbda4e7 Merge branch 'jl/submodule-re-add' into maint
* jl/submodule-re-add:
  submodule add: fix breakage when re-adding a deep submodule
2012-02-10 13:59:01 -08:00
Junio C Hamano
38ca63f3c0 Merge branch 'da/maint-mergetool-twoway' into maint
* da/maint-mergetool-twoway:
  mergetool: Provide an empty file when needed
2012-02-10 13:59:01 -08:00
Junio C Hamano
3adab6f3a7 merge: do not launch an editor on "--no-edit $tag"
When the user explicitly asked us not to, don't launch an editor.

But do everything else the same way as the "edit" case, i.e. leave the
comment with verification result in the log template and record the
mergesig in the resulting merge commit for later inspection.

Based on initiail analysis by Jonathan Nieder.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-09 13:30:52 -08:00
Junio C Hamano
31fd8d72f2 tag: do not show non-tag contents with "-n"
"git tag -n" did not check the type of the object it is reading the top n
lines from. At least, avoid showing the beginning of trees and blobs when
dealing with lightweight tags that point at them.

As the payload of a tag and a commit look similar in that they both start
with a header block, which is skipped for the purpose of "-n" output,
followed by human readable text, allow the message of commit objects to be
shown just like the contents of tag objects. This avoids regression for
people who have been using "tag -n" to show the log messages of commits
that are pointed at by lightweight tags.

Test script is from Jeff King.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-08 20:44:39 -08:00
Junio C Hamano
3f6d56de5f commit: ignore intent-to-add entries instead of refusing
Originally, "git add -N" was introduced to help users from forgetting to
add new files to the index before they ran "git commit -a".  As an attempt
to help them further so that they do not forget to say "-a", "git commit"
to commit the index as-is was taught to error out, reminding the user that
they may have forgotten to add the final contents of the paths before
running the command.

This turned out to be a false "safety" that is useless.  If the user made
changes to already tracked paths and paths added with "git add -N", and
then ran "git add" to register the final contents of the paths added with
"git add -N", "git commit" will happily create a commit out of the index,
without including the local changes made to the already tracked paths. It
was not a useful "safety" measure to prevent "forgetful" mistakes from
happening.

It turns out that this behaviour is not just a useless false "safety", but
actively hurts use cases of "git add -N" that were discovered later and
have become popular, namely, to tell Git to be aware of these paths added
by "git add -N", so that commands like "git status" and "git diff" would
include them in their output, even though the user is not interested in
including them in the next commit they are going to make.

Fix this ancient UI mistake, and instead make a commit from the index
ignoring the paths added by "git add -N" without adding real contents.

Based on the work by Nguyễn Thái Ngọc Duy, and helped by injection of
sanity from Jonathan Nieder and others on the Git mailing list.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-07 12:14:40 -08:00
Junio C Hamano
abe199808c git checkout -b: allow switching out of an unborn branch
Running "git checkout -b another" immediately after "git init" when you do
not even have a commit on 'master' fails with:

    $ git checkout -b another
    fatal: You are on a branch yet to be born

This is unnecessary, if we redefine "git checkout -b $name" that does not
take any $start_point (which has to be a commit) as "I want to check out a
new branch $name from the state I am in".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 16:32:15 -08:00
Junio C Hamano
f2120eb4db Merge branch 'sp/smart-http-failure-to-push' into maint
* sp/smart-http-failure-to-push:
  remote-curl: Fix push status report when all branches fail
2012-02-05 23:58:43 -08:00
Junio C Hamano
e27d620e91 Merge branch 'jc/maint-log-first-parent-pathspec' into maint
* jc/maint-log-first-parent-pathspec:
  Making pathspec limited log play nicer with --first-parent
2012-02-05 23:58:42 -08:00
Junio C Hamano
4802997c75 Merge branch 'cb/push-quiet' into maint
* cb/push-quiet:
  t5541: avoid TAP test miscounting
  fix push --quiet: add 'quiet' capability to receive-pack
  server_supports(): parse feature list more carefully
2012-02-05 23:58:42 -08:00
Junio C Hamano
c2d17ba3db branch --edit-description: protect against mistyped branch name
It is very easy to mistype the branch name when editing its description,
e.g.

	$ git checkout -b my-topic master
	: work work work
	: now we are at a good point to switch working something else
	$ git checkout master
	: ah, let's write it down before we forget what we were doing
	$ git branch --edit-description my-tpoic

The command does not notice that branch 'my-tpoic' does not exist.  It is
not lost (it becomes description of an unborn my-tpoic branch), but is not
very useful.  So detect such a case and error out to reduce the grief
factor from this common mistake.

This incidentally also errors out --edit-description when the HEAD points
at an unborn branch (immediately after "init", or "checkout --orphan"),
because at that point, you do not even have any commit that is part of
your history and there is no point in describing how this particular
branch is different from the branch it forked off of, which is the useful
bit of information the branch description is designed to capture.

We may want to special case the unborn case later, but that is outside the
scope of this patch to prevent more common mistakes before 1.7.9 series
gains too much widespread use.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-05 17:28:03 -08:00
Junio C Hamano
b5c9f1c1b0 merge: do not create a signed tag merge under --ff-only option
Starting at release v1.7.9, if you ask to merge a signed tag, "git merge"
always creates a merge commit, even when the tag points at a commit that
happens to be a descendant of your current commit.

Unfortunately, this interacts rather badly for people who use --ff-only to
make sure that their branch is free of local developments. It used to be
possible to say:

	$ git checkout -b frotz v1.7.9~30
        $ git merge --ff-only v1.7.9

and expect that the resulting tip of frotz branch matches v1.7.9^0 (aka
the commit tagged as v1.7.9), but this fails with the updated Git with:

	fatal: Not possible to fast-forward, aborting.

because a merge that merges v1.7.9 tag to v1.7.9~30 cannot be created by
fast forwarding.

We could teach users that now they have to do

	$ git merge --ff-only v1.7.9^0

but it is far more pleasant for users if we DWIMmed this ourselves.

When an integrator pulls in a topic from a lieutenant via a signed tag,
even when the work done by the lieutenant happens to fast-forward, the
integrator wants to have a merge record, so the integrator will not be
asking for --ff-only when running "git pull" in such a case. Therefore,
this change should not regress the support for the use case v1.7.9 wanted
to add.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-05 16:30:26 -08:00
Nguyễn Thái Ngọc Duy
7f814632f5 Use correct grammar in diffstat summary line
"git diff --stat" and "git apply --stat" now learn to print the line
"%d files changed, %d insertions(+), %d deletions(-)" in singular form
whenever applicable. "0 insertions" and "0 deletions" are also omitted
unless they are both zero.

This matches how versions of "diffstat" that are not prehistoric produced
their output, and also makes this line translatable.

[jc: with help from Thomas Dickey in archaeology of "diffstat"]
[jc: squashed Jonathan's updates to illustrations in tutorials and a test]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-03 23:19:42 -08:00
Junio C Hamano
2c733fb24c parse_date(): '@' prefix forces git-timestamp
The only place that the issue this series addresses was observed
where we read "cat-file commit" output and put it in GIT_AUTHOR_DATE
in order to replay a commit with an ancient timestamp.

With the previous patch alone, "git commit --date='20100917 +0900'"
can be misinterpreted to mean an ancient timestamp, not September in
year 2010.  Guard this codepath by requring an extra '@' in front of
the raw git timestamp on the parsing side. This of course needs to
be compensated by updating get_author_ident_from_commit and the code
for "git commit --amend" to prepend '@' to the string read from the
existing commit in the GIT_AUTHOR_DATE environment variable.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-03 23:11:32 -08:00
Junio C Hamano
840c519d7e tests: add write_script helper function
Many of the scripts in the test suite write small helper
shell scripts to disk. It's best if these shell scripts
start with "#!$SHELL_PATH" rather than "#!/bin/sh", because
/bin/sh on some platforms is too buggy to be used.

However, it can be cumbersome to expand $SHELL_PATH, because
the usual recipe for writing a script is:

	cat >foo.sh <<-\EOF
	#!/bin/sh
	echo my arguments are "$@"
	EOF

To expand $SHELL_PATH, you have to either interpolate the
here-doc (which would require quoting "\$@"), or split the
creation into two commands (interpolating the $SHELL_PATH
line, but not the rest of the script). Let's provide a
helper function that makes that less syntactically painful.

While we're at it, this helper can also take care of the
"chmod +x" that typically comes after the creation of such a
script, saving the caller a line.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-03 23:01:07 -08:00
Jeff King
b3256eb8b3 standardize and improve lookup rules for external local repos
When you specify a local repository on the command line of
clone, ls-remote, upload-pack, receive-pack, or upload-archive,
or in a request to git-daemon, we perform a little bit of
lookup magic, doing things like looking in working trees for
.git directories and appending ".git" for bare repos.

For clone, this magic happens in get_repo_path. For
everything else, it happens in enter_repo. In both cases,
there are some ambiguous or confusing cases that aren't
handled well, and there is one case that is not handled the
same by both methods.

This patch tries to provide (and test!) standard, sensible
lookup rules for both code paths. The intended changes are:

  1. When looking up "foo", we have always preferred
     a working tree "foo" (containing "foo/.git" over the
     bare "foo.git". But we did not prefer a bare "foo" over
     "foo.git". With this patch, we do so.

  2. We would select directories that existed but didn't
     actually look like git repositories. With this patch,
     we make sure a selected directory looks like a git
     repo. Not only is this more sensible in general, but it
     will help anybody who is negatively affected by change
     (1) negatively (e.g., if they had "foo.git" next to its
     separate work tree "foo", and expect to keep finding
     "foo.git" when they reference "foo").

  3. The enter_repo code path would, given "foo", look for
     "foo.git/.git" (i.e., do the ".git" append magic even
     for a repo with working tree). The clone code path did
     not; with this patch, they now behave the same.

In the unlikely case of a working tree overlaying a bare
repo (i.e., a ".git" directory _inside_ a bare repo), we
continue to treat it as a working tree (prefering the
"inner" .git over the bare repo). This is mainly because the
combination seems nonsensical, and I'd rather stick with
existing behavior on the off chance that somebody is relying
on it.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-02 16:41:55 -08:00
Jeff King
41b59bfcb1 grep: respect diff attributes for binary-ness
There is currently no way for users to tell git-grep that a
particular path is or is not a binary file; instead, grep
always relies on its auto-detection (or the user specifying
"-a" to treat all binary-looking files like text).

This patch teaches git-grep to use the same attribute lookup
that is used by git-diff. We could add a new "grep" flag,
but that is unnecessarily complex and unlikely to be useful.
Despite the name, the "-diff" attribute (or "diff=foo" and
the associated diff.foo.binary config option) are really
about describing the contents of the path. It's simply
historical that diff was the only thing that cared about
these attributes in the past.

And if this simple approach turns out to be insufficient, we
still have a backwards-compatible path forward: we can add a
separate "grep" attribute, and fall back to respecting
"diff" if it is unset.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-02 10:36:08 -08:00
Junio C Hamano
2ad9ba0382 request-pull: explicitly ask tags/$name to be pulled
When asking for a tag to be pulled, disambiguate by leaving tags/ prefix
in front of the name of the tag. E.g.

    ... in the git repository at:

      git://example.com/git/git.git/ tags/v1.2.3

    for you to fetch changes up to 123456...

This way, older versions of "git pull" can be used to respond to such a
request more easily, as "git pull $URL v1.2.3" did not DWIM to fetch
v1.2.3 tag in older versions. Also this makes it clearer for humans that
the pull request is made for a tag and he should anticipate a signed one.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-31 21:27:58 -08:00
Jens Lehmann
1017c1abcb submodule add: fix breakage when re-adding a deep submodule
Since recently a submodule with name <name> has its git directory in the
.git/modules/<name> directory of the superproject while the work tree
contains a gitfile pointing there.

When the same submodule is added on a branch where it wasn't present so
far (it is not found in the .gitmodules file), the name is not initialized
from the path as it should. This leads to a wrong path entered in the
gitfile when the .git/modules/<name> directory is found, as this happily
uses the - now empty - name. It then always points only a single directory
up, even if we have a path deeper in the directory hierarchy.

Fix that by initializing the name of the submodule early in module_clone()
if module_name() returned an empty name and add a test to catch that bug.

Reported-by: Jehan Bing <jehan@orb.com>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-24 14:18:18 -08:00
David Aguilar
ec245ba049 mergetool: Provide an empty file when needed
Some merge tools cannot cope when $LOCAL, $BASE, or $REMOTE are missing.
$BASE can be missing when two branches independently add the same
filename.

Provide an empty file to make these tools happy.

When a delete/modify conflict occurs, $LOCAL and $REMOTE can also be
missing. We have special case code to handle such case so this change
may not affect that codepath, but try to be consistent and create an
empty file for them anyway.

Reported-by: Jason Wenger <jcwenger@gmail.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-23 11:50:22 -08:00
Albert Yale
50dd0f2fd9 grep: fix -l/-L interaction with decoration lines
In threaded mode, git-grep emits file breaks (enabled with context, -W
and --break) into the accumulation buffers even if they are not
required.  The output collection thread then uses skip_first_line to
skip the first such line in the output, which would otherwise be at
the very top.

This is wrong when the user also specified -l/-L/-c, in which case
every line is relevant.  While arguably giving these options together
doesn't make any sense, git-grep has always quietly accepted it.  So
do not skip anything in these cases.

Signed-off-by: Albert Yale <surfingalbert@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-23 10:49:34 -08:00
Shawn O. Pearce
5238cbf656 remote-curl: Fix push status report when all branches fail
The protocol between transport-helper.c and remote-curl requires
remote-curl to always print a blank line after the push command
has run. If the blank line is ommitted, transport-helper kills its
container process (the git push the user started) with exit(128)
and no message indicating a problem, assuming the helper already
printed reasonable error text to the console.

However if the remote rejects all branches with "ng" commands in the
report-status reply, send-pack terminates with non-zero status, and
in turn remote-curl exited with non-zero status before outputting
the blank line after the helper status printed by send-pack. No
error messages reach the user.

This caused users to see the following from git push over HTTP
when the remote side's update hook rejected the branch:

  $ git push http://... master
  Counting objects: 4, done.
  Delta compression using up to 6 threads.
  Compressing objects: 100% (2/2), done.
  Writing objects: 100% (3/3), 301 bytes, done.
  Total 3 (delta 0), reused 0 (delta 0)
  $

Always print a blank line after the send-pack process terminates,
ensuring the helper status report (if it was output) will be
correctly parsed by the calling transport-helper.c. This ensures
the helper doesn't abort before the status report can be shown to
the user.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-20 10:14:32 -08:00
Junio C Hamano
36ed1913e1 Making pathspec limited log play nicer with --first-parent
In a topic branch workflow, you often want to find the latest commit that
merged a side branch that touched a particular area of the system, so that
a new topic branch to work on that area can be forked from that commit.
For example, I wanted to find an appropriate fork-point to queue Luke's
changes related to git-p4 in contrib/fast-import/.

"git log --first-parent" traverses the first-parent chain, and "-m --stat"
shows the list of paths touched by commits including merge commits.  We
could ask the question this way:

    # What is the latest commit that touched that path?
    $ git log --first-parent --oneline -m --stat master |
      sed -e '/^ contrib\/fast-import\/git-p4 /q' | tail

The above finds that 8cbfc11 (Merge branch 'pw/p4-view-updates',
2012-01-06) was such a commit.

But a more natural way to spell this question is this:

    $ git log --first-parent --oneline -m --stat -1 master -- \
      contrib/fast-import/git-p4

Unfortunately, this does not work. It finds ecb7cf9 (git-p4: rewrite view
handling, 2012-01-02). This commit is a part of the merged topic branch
and is _not_ on the first-parent path from the 'master':

    $ git show-branch 8cbfc11 ecb7cf9
    ! [8cbfc11] Merge branch 'pw/p4-view-updates'
     ! [ecb7cf9] git-p4: rewrite view handling
    --
    -  [8cbfc11] Merge branch 'pw/p4-view-updates'
    +  [8cbfc11^2] git-p4: view spec documentation
    ++ [ecb7cf9] git-p4: rewrite view handling

The problem is caused by the merge simplification logic when it inspects
the merge commit 8cbfc11. In this case, the history leading to the tip of
'master' did not touch git-p4 since 'pw/p4-view-updates' topic forked, and
the result of the merge is simply a copy from the tip of the topic branch
in the view limited by the given pathspec.  The merge simplification logic
discards the history on the mainline side of the merge, and pretends as if
the sole parent of the merge is its second parent, i.e. the tip of the
topic. While this simplification is correct in the general case, it is at
least surprising if not outright wrong when the user explicitly asked to
show the first-parent history.

Here is an attempt to fix this issue, by not allowing us to compare the
merge result with anything but the first parent when --first-parent is in
effect, to avoid the history traversal veering off to the side branch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-19 16:18:27 -08:00
Junio C Hamano
d899cf559b Merge branch 'maint-1.7.7' into maint
* maint-1.7.7:
  Git 1.7.7.6
  diff-index: enable recursive pathspec matching in unpack_trees

Conflicts:
	GIT-VERSION-GEN
2012-01-18 15:48:46 -08:00
Nguyen Thai Ngoc Duy
5c8eeb83db diff-index: enable recursive pathspec matching in unpack_trees
The pathspec structure has a few bits of data to drive various operation
modes after we unified the pathspec matching logic in various codepaths.
For example, max_depth field is there so that "git grep" can limit the
output for files found in limited depth of tree traversal. Also in order
to show just the surface level differences in "git diff-tree", recursive
field stops us from descending into deeper level of the tree structure
when it is set to false, and this also affects pathspec matching when
we have wildcards in the pathspec.

The diff-index has always wanted the recursive behaviour, and wanted to
match pathspecs without any depth limit. But we forgot to do so when we
updated tree_entry_interesting() logic to unify the pathspec matching
logic.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-18 15:44:02 -08:00
Junio C Hamano
c74f97a624 Merge branch 'nd/pathspec-recursion-cleanup'
* nd/pathspec-recursion-cleanup:
  diff-index: enable recursive pathspec matching in unpack_trees
  Document limited recursion pathspec matching with wildcards
2012-01-18 15:16:43 -08:00
Junio C Hamano
05c65cb116 Merge branch 'tr/maint-word-diff-incomplete-line'
* tr/maint-word-diff-incomplete-line:
  word-diff: ignore '\ No newline at eof' marker
2012-01-18 15:16:19 -08:00
Nguyen Thai Ngoc Duy
4838237cb7 diff-index: enable recursive pathspec matching in unpack_trees
The pathspec structure has a few bits of data to drive various operation
modes after we unified the pathspec matching logic in various codepaths.
For example, max_depth field is there so that "git grep" can limit the
output for files found in limited depth of tree traversal. Also in order
to show just the surface level differences in "git diff-tree", recursive
field stops us from descending into deeper level of the tree structure
when it is set to false, and this also affects pathspec matching when
we have wildcards in the pathspec.

The diff-index has always wanted the recursive behaviour, and wanted to
match pathspecs without any depth limit. But we forgot to do so when we
updated tree_entry_interesting() logic to unify the pathspec matching
logic.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-16 14:17:18 -08:00