Thomas Gummerer [Sun, 19 Feb 2017 11:03:10 +0000 (11:03 +0000)]
stash: refactor stash_create
Refactor the internal stash_create function to use a -m flag for
specifying the message and -u flag to indicate whether untracked files
should be added to the stash.
This makes it easier to pass a pathspec argument to stash_create in the
next patch.
The user interface for git stash create stays the same.
Signed-off-by: Thomas Gummerer <redacted>
Signed-off-by: Junio C Hamano <redacted>
Thomas Gummerer [Sun, 19 Feb 2017 11:03:09 +0000 (11:03 +0000)]
stash: add test for the create command line arguments
Currently there is no test showing the expected behaviour of git stash
create's command line arguments. Add a test for that to show the
current expected behaviour and to make sure future refactorings don't
break those expectations.
Signed-off-by: Thomas Gummerer <redacted>
Signed-off-by: Junio C Hamano <redacted>
Thomas Gummerer [Sun, 19 Feb 2017 11:03:08 +0000 (11:03 +0000)]
stash: introduce push verb
Introduce a new git stash push verb in addition to git stash save. The
push verb is used to transition from the current command line arguments
to a more conventional way, in which the message is given as an argument
to the -m option.
This allows us to have pathspecs at the end of the command line
arguments like other Git commands do, so that the user can say which
subset of paths to stash (and leave others behind).
Helped-by: Junio C Hamano <redacted>
Signed-off-by: Thomas Gummerer <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jiang Xin [Sun, 19 Feb 2017 14:08:05 +0000 (22:08 +0800)]
Merge branch 'ko/merge-l10n' of https://github.com/changwoo/git-l10n-ko
* 'ko/merge-l10n' of https://github.com/changwoo/git-l10n-ko:
l10n: ko.po: Update Korean translation
Jiang Xin [Sun, 19 Feb 2017 14:04:41 +0000 (22:04 +0800)]
Merge branch 'master' of https://github.com/vnwildman/git
* 'master' of https://github.com/vnwildman/git:
l10n: vi.po (3139t): Updated 2 new messages for rc1
Changwoo Ryu [Sun, 19 Feb 2017 10:34:24 +0000 (19:34 +0900)]
l10n: ko.po: Update Korean translation
Signed-off-by: Changwoo Ryu <redacted>
Tran Ngoc Quan [Sat, 18 Feb 2017 00:18:54 +0000 (07:18 +0700)]
l10n: vi.po (3139t): Updated 2 new messages for rc1
Signed-off-by: Tran Ngoc Quan <redacted>
Grégoire Paris [Fri, 17 Feb 2017 23:37:00 +0000 (00:37 +0100)]
init: document dotfiles exclusion on template copy
Not just . and .., but any path that begins with dot is not copied
when copying the template directory to a new repository. You can
customize the template directory, copying some dotfiles might make
sense, but it's actually a good thing not to, because you would not
want to have your git directory copied in every git directory that
is created should you decide to put your template directory under
version control, for example. Plus, it might be used as a feature
by people who would want to exclude some files.
Signed-off-by: Grégoire Paris <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jean-Noel Avila [Fri, 17 Feb 2017 23:10:04 +0000 (00:10 +0100)]
l10n: fr.po: v2.12.0 round 2 3139t
Signed-off-by: Jean-Noel Avila <redacted>
Jeff King [Fri, 17 Feb 2017 21:07:49 +0000 (16:07 -0500)]
tempfile: set errno to a known value before calling ferror()
In close_tempfile(), we return an error if ferror()
indicated a previous failure, or if fclose() failed. In the
latter case, errno is set and it is useful for callers to
report it.
However, if _only_ ferror() triggers, then the value of
errno is based on whatever syscall happened to last fail,
which may not be related to our filehandle at all. A caller
cannot tell the difference between the two cases, and may
use "die_errno()" or similar to report a nonsense errno value.
One solution would be to actually pass back separate return
values for the two cases, so a caller can write a more
appropriate message for each case. But that makes the
interface clunky.
Instead, let's just set errno to the generic EIO in this case.
That's not as descriptive as we'd like, but at least it's
predictable. So it's better than the status quo in all cases
but one: when the last syscall really did involve a failure
on our filehandle, we'll be wiping that out. But that's a
fragile thing for us to rely on.
In any case, we'll let the errno result from fclose() take
precedence over our value, as we know that's recent and
accurate (and many I/O errors will persist through the
fclose anyway).
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Junio C Hamano [Fri, 17 Feb 2017 22:00:19 +0000 (14:00 -0800)]
Git 2.12-rc2
Signed-off-by: Junio C Hamano <redacted>
Johannes Schindelin [Fri, 17 Feb 2017 16:59:06 +0000 (17:59 +0100)]
rev-parse: fix several options when running in a subdirectory
In addition to making git_path() aware of certain file names that need
to be handled differently e.g. when running in worktrees, the commit
557bd833bb (git_path(): be aware of file relocation in $GIT_DIR,
2014-11-30) also snuck in a new option for `git rev-parse`:
`--git-path`.
On the face of it, there is no obvious bug in that commit's diff: it
faithfully calls git_path() on the argument and prints it out, i.e. `git
rev-parse --git-path <filename>` has the same precise behavior as
calling `git_path("<filename>")` in C.
The problem lies deeper, much deeper. In hindsight (which is always
unfair), implementing the .git/ directory discovery in
`setup_git_directory()` by changing the working directory may have
allowed us to avoid passing around a struct that contains information
about the current repository, but it bought us many, many problems.
In this case, when being called in a subdirectory, `git rev-parse`
changes the working directory to the top-level directory before calling
`git_path()`. In the new working directory, the result is correct. But
in the working directory of the calling script, it is incorrect.
Example: when calling `git rev-parse --git-path HEAD` in, say, the
Documentation/ subdirectory of Git's own source code, the string
`.git/HEAD` is printed.
Side note: that bug is hidden when running in a subdirectory of a
worktree that was added by the `git worktree` command: in that case, the
(correct) absolute path of the `HEAD` file is printed.
In the interest of time, this patch does not go the "correct" route to
introduce a struct with repository information (and removing global
state in the process), instead this patch chooses to detect when the
command was called in a subdirectory and forces the result to be an
absolute path.
While at it, we are also fixing the output of --git-common-dir and
--shared-index-path.
Lastly, please note that we reuse the same strbuf for all of the
relative_path() calls; this avoids frequent allocation (and duplicated
code), and it does not risk memory leaks, for two reasons: 1) the
cmd_rev_parse() function does not return anywhere between the use of
the new strbuf instance and its final release, and 2) git-rev-parse is
one of these "one-shot" programs in Git, i.e. it exits after running
for a very short time, meaning that all allocated memory is released
with the exit() call anyway.
Signed-off-by: Johannes Schindelin <redacted>
Signed-off-by: Junio C Hamano <redacted>
Michael Rappazzo [Fri, 17 Feb 2017 16:59:02 +0000 (17:59 +0100)]
rev-parse tests: add tests executed from a subdirectory
t2027-worktree-list has an incorrect expectation for --git-common-dir
which has been adjusted and marked to expect failure.
Some of the tests added have been marked to expect failure. These
demonstrate a problem with the way that some options to git rev-parse
behave when executed from a subdirectory of the main worktree.
[jes: fixed incorrect assumption that objects/ lives in the
worktree-specific git-dir (it lives in the common dir instead). Also
adjusted t1700 so that the test case does not *need* to be the last
one in that script.]
Signed-off-by: Michael Rappazzo <redacted>
Signed-off-by: Johannes Schindelin <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jiang Xin [Fri, 17 Feb 2017 17:00:54 +0000 (01:00 +0800)]
l10n: git.pot: v2.12.0 round 2 (2 new)
Generate po/git.pot from v2.12.0-rc1 for git v2.12.0 l10n round 2.
Signed-off-by: Jiang Xin <redacted>
Jiang Xin [Fri, 17 Feb 2017 16:59:51 +0000 (00:59 +0800)]
Merge branch 'master' of git://github.com/git-l10n/git-po
* 'master' of git://github.com/git-l10n/git-po:
l10n: vi.po: Updated Vietnamese translation (3137t)
l10n: update Catalan translation
l10n: sv.po: Update Swedish translation (3137t0f0u)
l10n: fr.po: v2.11-rc0 first round
l10n: ko.po: Update Korean translation
l10n: fr.po: Fix a typo in the French translation
l10n: fr.po: Remove gender specific adjectives
l10n: fr.po: Fix typos
l10n: git.pot: v2.12.0 round 1 (239 new, 15 removed)
l10n: bg: Updated Bulgarian translation (2913t+0f+0u)
l10n: fixes to Catalan translation
l10n: zh_CN: review for git v2.11.0 l10n
l10n: New Catalan translation maintainer
Jiang Xin [Fri, 17 Feb 2017 16:54:49 +0000 (00:54 +0800)]
Merge branch 'master' of https://github.com/vnwildman/git
* 'master' of https://github.com/vnwildman/git:
l10n: vi.po: Updated Vietnamese translation (3137t)
Jiang Xin [Fri, 17 Feb 2017 16:49:06 +0000 (00:49 +0800)]
Merge branch 'master' of https://github.com/Softcatala/git-po
* 'master' of https://github.com/Softcatala/git-po:
l10n: update Catalan translation
Tran Ngoc Quan [Fri, 17 Feb 2017 06:51:34 +0000 (13:51 +0700)]
l10n: vi.po: Updated Vietnamese translation (3137t)
Signed-off-by: Tran Ngoc Quan <redacted>
Junio C Hamano [Thu, 16 Feb 2017 22:46:35 +0000 (14:46 -0800)]
Hopefully the final batch of mini-topics before the final
Signed-off-by: Junio C Hamano <redacted>
Junio C Hamano [Thu, 16 Feb 2017 22:45:15 +0000 (14:45 -0800)]
Merge branch 'jk/tempfile-ferror-fclose-confusion'
Code clean-up.
* jk/tempfile-ferror-fclose-confusion:
tempfile: avoid "ferror | fclose" trick
Junio C Hamano [Thu, 16 Feb 2017 22:45:15 +0000 (14:45 -0800)]
Merge branch 'dp/submodule-doc-markup-fix'
Doc fix.
* dp/submodule-doc-markup-fix:
config.txt: fix formatting of submodule.alternateErrorStrategy section
Junio C Hamano [Thu, 16 Feb 2017 22:45:14 +0000 (14:45 -0800)]
Merge branch 'jk/reset-to-break-a-commit-doc-updated'
Doc update.
* jk/reset-to-break-a-commit-doc-updated:
reset: add an example of how to split a commit into two
Junio C Hamano [Thu, 16 Feb 2017 22:45:14 +0000 (14:45 -0800)]
Merge branch 'jk/reset-to-break-a-commit-doc'
Doc update.
* jk/reset-to-break-a-commit-doc:
Revert "reset: add an example of how to split a commit into two"
Junio C Hamano [Thu, 16 Feb 2017 22:45:13 +0000 (14:45 -0800)]
Merge branch 'js/mingw-isatty'
A hotfix for a topic already in 'master'.
* js/mingw-isatty:
mingw: make stderr unbuffered again
Junio C Hamano [Thu, 16 Feb 2017 22:45:13 +0000 (14:45 -0800)]
Merge branch 'rs/strbuf-cleanup-in-rmdir-recursively'
Code clean-up.
* rs/strbuf-cleanup-in-rmdir-recursively:
rm: reuse strbuf for all remove_dir_recursively() calls, again
Junio C Hamano [Thu, 16 Feb 2017 22:45:13 +0000 (14:45 -0800)]
Merge branch 'rs/ls-files-partial-optim'
"ls-files" run with pathspec has been micro-optimized to avoid
having to memmove(3) unnecessary bytes.
* rs/ls-files-partial-optim:
ls-files: move only kept cache entries in prune_cache()
ls-files: pass prefix length explicitly to prune_cache()
Junio C Hamano [Thu, 16 Feb 2017 22:45:13 +0000 (14:45 -0800)]
Merge branch 'rs/cocci-check-free-only-null'
A new coccinelle rule that catches a check of !pointer before the
pointer is free(3)d, which most likely is a bug.
* rs/cocci-check-free-only-null:
cocci: detect useless free(3) calls
Junio C Hamano [Thu, 16 Feb 2017 22:45:12 +0000 (14:45 -0800)]
Merge branch 'ls/p4-path-encoding'
When "git p4" imports changelist that removes paths, it failed to
convert pathnames when the p4 used encoding different from the one
used on the Git side. This has been corrected.
* ls/p4-path-encoding:
git-p4: fix git-p4.pathEncoding for removed files
Jeff King [Thu, 16 Feb 2017 21:31:40 +0000 (16:31 -0500)]
tempfile: avoid "ferror | fclose" trick
The current code wants to record an error condition from
either ferror() or fclose(), but makes sure that we always
call both functions. So it can't use logical-OR "||", which
would short-circuit when ferror() is true. Instead, it uses
bitwise-OR "|" to evaluate both functions and set one or
more bits in the "err" flag if they reported a failure.
Unlike logical-OR, though, bitwise-OR does not introduce a
sequence point, and the order of evaluation for its operands
is unspecified. So a compiler would be free to generate code
which calls fclose() first, and then ferror() on the
now-freed filehandle.
There's no indication that this has happened in practice,
but let's write it out in a way that follows the standard.
Noticed-by: Andreas Schwab <redacted>
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
David Pursehouse [Thu, 16 Feb 2017 05:05:35 +0000 (14:05 +0900)]
config.txt: fix formatting of submodule.alternateErrorStrategy section
Add missing `::` after the title.
Signed-off-by: David Pursehouse <redacted>
Acked-by: Stefan Beller <redacted>
Signed-off-by: Junio C Hamano <redacted>
Nguyễn Thái Ngọc Duy [Tue, 14 Feb 2017 09:54:49 +0000 (16:54 +0700)]
clean: use warning_errno() when appropriate
All these warning() calls are preceded by a system call. Report the
actual error to help the user understand why we fail to remove
something.
Signed-off-by: Nguyễn Thái Ngọc Duy <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jacob Keller [Thu, 16 Feb 2017 00:22:12 +0000 (16:22 -0800)]
reset: add an example of how to split a commit into two
It is often useful to break a commit into multiple parts that are more
logical separations. This can be tricky to learn how to do without the
brute-force method if re-writing code or commit messages from scratch.
Add a section to the git-reset documentation which shows an example
process for how to use git add -p and git commit -c HEAD@{1} to
interactively break a commit apart and re-use the original commit
message as a starting point when making the new commit message.
Signed-off-by: Jacob Keller <redacted>
Signed-off-by: Junio C Hamano <redacted>
Junio C Hamano [Thu, 16 Feb 2017 21:35:50 +0000 (13:35 -0800)]
Revert "reset: add an example of how to split a commit into two"
This reverts commit
7326451bedaa67d29afe02184b166e28d9393c91; a
better rewrite will be queued separately.
Maxim Moseychuk [Thu, 16 Feb 2017 17:07:12 +0000 (20:07 +0300)]
bisect_next_all: convert xsnprintf to xstrfmt
Git can't run bisect between 2048+ commits if use russian
translation, because the translated string is too long for the fixed
buffer it uses (this can be reproduced "LANG=ru_RU.UTF8 git bisect
start v4.9 v4.8" on linux sources).
Use xstrfmt() to format the message string to sufficiently sized
buffer instead to fix this.
Signed-off-by: Maxim Moseychuk <redacted>
Signed-off-by: Junio C Hamano <redacted>
Maxim Moseychuk [Thu, 16 Feb 2017 17:07:13 +0000 (20:07 +0300)]
stop_progress_msg: convert xsnprintf to xstrfmt
Simplify code by replacing buffer allocation with a call to xstrfmt().
Signed-off-by: Maxim Moseychuk <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jordi Mas [Thu, 16 Feb 2017 04:10:04 +0000 (05:10 +0100)]
l10n: update Catalan translation
Signed-off-by: Jordi Mas <redacted>
Junio C Hamano [Wed, 15 Feb 2017 22:58:25 +0000 (14:58 -0800)]
A bit more for -rc2
Junio C Hamano [Wed, 15 Feb 2017 22:56:41 +0000 (14:56 -0800)]
Merge branch 'tg/stash-doc-cleanup'
The documentation explained what "git stash" does to the working
tree (after stashing away the local changes) in terms of "reset
--hard", which was exposing an unnecessary implementation detail.
* tg/stash-doc-cleanup:
Documentation/stash: remove mention of git reset --hard
Junio C Hamano [Wed, 15 Feb 2017 22:56:40 +0000 (14:56 -0800)]
Merge branch 'jk/doc-submodule-markup-fix'
Doc markup fix.
* jk/doc-submodule-markup-fix:
docs/git-submodule: fix unbalanced quote
Junio C Hamano [Wed, 15 Feb 2017 22:56:40 +0000 (14:56 -0800)]
Merge branch 'jk/doc-remote-helpers-markup-fix'
Doc markup fix.
* jk/doc-remote-helpers-markup-fix:
docs/gitremote-helpers: fix unbalanced quotes
Jeff King [Wed, 15 Feb 2017 21:40:52 +0000 (16:40 -0500)]
show-branch: use skip_prefix to drop magic numbers
We make several starts_with() calls, only to advance
pointers. This is exactly what skip_prefix() is for, which
lets us avoid manually-counted magic numbers.
Helped-by: Pranit Bauva <redacted>
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Junio C Hamano [Wed, 15 Feb 2017 20:54:20 +0000 (12:54 -0800)]
Merge branch 'sb/doc-unify-bottom'
Doc clean-up.
* sb/doc-unify-bottom:
Documentation: unify bottom "part of git suite" lines
Junio C Hamano [Wed, 15 Feb 2017 20:54:19 +0000 (12:54 -0800)]
Merge branch 'sb/push-options-via-transport'
The push-options given via the "--push-options" option were not
passed through to external remote helpers such as "smart HTTP" that
are invoked via the transport helper.
* sb/push-options-via-transport:
push options: pass push options to the transport helper
Junio C Hamano [Wed, 15 Feb 2017 20:54:19 +0000 (12:54 -0800)]
Merge branch 'cw/completion'
More command line completion (in contrib/) for recent additions.
* cw/completion:
completion: recognize more long-options
completion: teach remote subcommands to complete options
completion: teach replace to complete options
completion: teach ls-remote to complete options
completion: improve bash completion for git-add
completion: add subcommand completion for rerere
completion: teach submodule subcommands to complete options
Junio C Hamano [Wed, 15 Feb 2017 20:54:19 +0000 (12:54 -0800)]
Merge branch 'rs/swap'
Code clean-up.
* rs/swap:
graph: use SWAP macro
diff: use SWAP macro
use SWAP macro
apply: use SWAP macro
add SWAP macro
Junio C Hamano [Wed, 15 Feb 2017 20:54:18 +0000 (12:54 -0800)]
Merge branch 'sb/submodule-doc'
Doc updates.
* sb/submodule-doc:
submodule update documentation: don't repeat ourselves
submodule documentation: add options to the subcommand
Jeff King [Tue, 14 Feb 2017 21:54:36 +0000 (16:54 -0500)]
grep: treat revs the same for --untracked as for --no-index
git-grep has always disallowed grepping in a tree (as
opposed to the working directory) with both --untracked
and --no-index. But we traditionally did so by first
collecting the revs, and then complaining when any were
provided.
The --no-index option recently learned to detect revs
much earlier. This has two user-visible effects:
- we don't bother to resolve revision names at all. So
when there's a rev/path ambiguity, we always choose to
treat it as a path.
- likewise, when you do specify a revision without "--",
the error you get is "no such path" and not "--untracked
cannot be used with revs".
The rationale for doing this with --no-index is that it is
meant to be used outside a repository, and so parsing revs
at all does not make sense.
This patch gives --untracked the same treatment. While it
_is_ meant to be used in a repository, it is explicitly
about grepping the non-repository contents. Telling the user
"we found a rev, but you are not allowed to use revs" is
not really helpful compared to "we treated your argument as
a path, and could not find it".
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jonathan Nieder [Tue, 14 Feb 2017 20:36:19 +0000 (15:36 -0500)]
remote helpers: avoid blind fall-back to ".git" when setting GIT_DIR
To push from or fetch to the current repository, remote helpers need
to know what repository that is. Accordingly, Git sets the GIT_DIR
environment variable to the path to the current repository when
invoking remote helpers.
There is a special case it does not handle: "git ls-remote" and "git
archive --remote" can be run to inspect a remote repository without
being run from any local repository. GIT_DIR is not useful in this
scenario:
- if we are not in a repository, we don't need to set GIT_DIR to
override an existing GIT_DIR value from the environment. If GIT_DIR
is present then we would be in a repository if it were valid and
would have called die() if it weren't.
- not setting GIT_DIR may cause a helper to do the usual discovery
walk to find the repository. But we know we're not in one, or we
would have found it ourselves. So in the worst case it may expend
a little extra effort to try to find a repository and fail (for
example, remote-curl would do this to try to find repository-level
configuration).
So leave GIT_DIR unset in this case. This makes GIT_DIR easier to
understand for remote helper authors and makes transport code less of
a special case for repository discovery.
Noticed using
b1ef400e (setup_git_env: avoid blind fall-back to
".git", 2016-10-20) from 'next':
$ cd /tmp
$ git ls-remote https://kernel.googlesource.com/pub/scm/git/git
fatal: BUG: setup_git_env called without repository
Helped-by: Jeff King <redacted>
Signed-off-by: Jonathan Nieder <redacted>
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jeff King [Tue, 14 Feb 2017 20:33:28 +0000 (15:33 -0500)]
remote: avoid reading $GIT_DIR config in non-repo
The "git ls-remote" command can be run outside of a
repository, but needs to look up configured remotes. The
config code is smart enough to handle this case itself, but
we also check the historical "branches" and "remotes" paths
in $GIT_DIR. The git_path() function causes us to blindly
look at ".git/remotes", even if we know we aren't in a git
repository.
For now, this is just an unlikely bug (you probably don't
have such a file if you're not in a repository), but it will
become more obvious once we merge
b1ef400ee (setup_git_env:
avoid blind fall-back to ".git", 2016-10-20):
[now]
$ git ls-remote
fatal: No remote configured to list refs from.
[with
b1ef400ee]
$ git ls-remote
fatal: BUG: setup_git_env called without repository
We can fix this by skipping these sources entirely when
we're outside of a repository.
The test is a little more complex than the demonstration
above. Rather than detect the correct behavior by parsing
the error message, we can actually set up a case where the
remote name we give is a valid repository, but
b1ef400ee
would cause us to die in the configuration step.
This test doesn't fail now, but it future-proofs us for the
b1ef400ee change.
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jeff King [Tue, 14 Feb 2017 17:27:45 +0000 (12:27 -0500)]
show-branch: store resolved head in heap buffer
We resolve HEAD and copy the result to a fixed-size buffer
with memcpy, never checking that it actually fits. This bug
dates back to
8098a178b (Add git-symbolic-ref, 2005-09-30).
Before that we used readlink(), which took a maximum buffer
size.
We can fix this by using resolve_refdup(), which duplicates
the buffer on the heap. That also lets us just check
for a NULL pointer to see if we have resolved HEAD, and
drop the extra head_p variable.
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jeff King [Tue, 14 Feb 2017 17:26:01 +0000 (12:26 -0500)]
show-branch: drop head_len variable
We copy the result of resolving HEAD into a buffer and keep
track of its length. But we never actually use the length
for anything besides the copy. Let's stop passing it around.
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jeff King [Tue, 14 Feb 2017 06:08:09 +0000 (01:08 -0500)]
grep: do not diagnose misspelt revs with --no-index
If we are using --no-index, then our arguments cannot be
revs in the first place. Not only is it pointless to
diagnose them, but if we are not in a repository, we should
not be trying to resolve any names.
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jeff King [Tue, 14 Feb 2017 06:07:29 +0000 (01:07 -0500)]
grep: avoid resolving revision names in --no-index case
We disallow the use of revisions with --no-index, but we
don't actually check and complain until well after we've
parsed the revisions.
This is the cause of a few problems:
1. We shouldn't be calling get_sha1() at all when we aren't
in a repository, as it might access the ref or object
databases. For now, this should generally just return
failure, but eventually it will become a BUG().
2. When there's a "--" disambiguator and you're outside a
repository, we'll complain early with "unable to resolve
revision". But we can give a much more specific error.
3. When there isn't a "--" disambiguator, we still do the
normal rev/path checks. This is silly, as we know we
cannot have any revs with --no-index. Everything we see
must be a path.
Outside of a repository this doesn't matter (since we
know it won't resolve), but inside one, we may complain
unnecessarily if a filename happens to also match a
refname.
This patch skips the get_sha1() call entirely in the
no-index case, and behaves as if it failed (with the
exception of giving a better error message).
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jeff King [Tue, 14 Feb 2017 06:05:55 +0000 (01:05 -0500)]
grep: fix "--" rev/pathspec disambiguation
If we see "git grep pattern rev -- file" then we apply the
usual rev/pathspec disambiguation rules: any "rev" before
the "--" must be a revision, and we do not need to apply the
verify_non_filename() check.
But there are two bugs here:
1. We keep a seen_dashdash flag to handle this case, but
we set it in the same left-to-right pass over the
arguments in which we parse "rev".
So when we see "rev", we do not yet know that there is
a "--", and we mistakenly complain if there is a
matching file.
We can fix this by making a preliminary pass over the
arguments to find the "--", and only then checking the rev
arguments.
2. If we can't resolve "rev" but there isn't a dashdash,
that's OK. We treat it like a path, and complain later
if it doesn't exist.
But if there _is_ a dashdash, then we know it must be a
rev, and should treat it as such, complaining if it
does not resolve. The current code instead ignores it
and tries to treat it like a path.
This patch fixes both bugs, and tries to comment the parsing
flow a bit better.
It adds tests that cover the two bugs, but also some related
situations (which already worked, but this confirms that our
fixes did not break anything).
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jeff King [Tue, 14 Feb 2017 06:04:17 +0000 (01:04 -0500)]
grep: re-order rev-parsing loop
We loop over the arguments, but every branch of the loop
hits either a "continue" or a "break". Surely we can make
this simpler.
The final conditional is:
if (arg is a rev) {
... handle rev ...
continue;
}
break;
We can rewrite this as:
if (arg is not a rev)
break;
... handle rev ...
That makes the flow a little bit simpler, and will make
things much easier to follow when we add more logic in
future patches.
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jonathan Tan [Tue, 14 Feb 2017 06:03:03 +0000 (01:03 -0500)]
grep: do not unnecessarily query repo for "--"
When running a command of the form
git grep --no-index pattern -- path
in the absence of a Git repository, an error message will be printed:
fatal: BUG: setup_git_env called without repository
This is because "git grep" tries to interpret "--" as a rev. "git grep"
has always tried to first interpret "--" as a rev for at least a few
years, but this issue was upgraded from a pessimization to a bug in
commit
59332d1 ("Resurrect "git grep --no-index"", 2010-02-06), which
calls get_sha1 regardless of whether --no-index was specified. This bug
appeared to be benign until commit
b1ef400 ("setup_git_env: avoid blind
fall-back to ".git"", 2016-10-20) when Git was taught to die in this
situation. (This "git grep" bug appears to be one of the bugs that
commit
b1ef400 is meant to flush out.)
Therefore, always interpret "--" as signaling the end of options,
instead of trying to interpret it as a rev first.
Signed-off-by: Jonathan Tan <redacted>
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jeff King [Tue, 14 Feb 2017 06:02:38 +0000 (01:02 -0500)]
grep: move thread initialization a little lower
Originally, we set up the threads for grep before parsing
the non-option arguments. In
53b8d931b (grep: disable
threading in non-worktree case, 2011-12-12), the thread code
got bumped lower in the function because it now needed to
know whether we got any revision arguments.
That put a big block of code in between the parsing of revs
and the parsing of pathspecs, both of which share some loop
variables. That makes it harder to read the code than the
original, where the shared loops were right next to each
other.
Let's bump the thread initialization until after all of the
parsing is done.
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Johannes Schindelin [Mon, 13 Feb 2017 22:34:06 +0000 (23:34 +0100)]
mingw: make stderr unbuffered again
When removing the hack for isatty(), we actually removed more than just
an isatty() hack: we removed the hack where internal data structures of
the MSVC runtime are modified in order to redirect stdout/stderr.
Instead of using that hack (that does not work with newer versions of
the runtime, anyway), we replaced it by reopening the respective file
descriptors.
What we forgot was to mark stderr as unbuffered again.
Reported by Hannes Sixt. Fixed with Jeff Hostetler's assistance.
Signed-off-by: Johannes Schindelin <redacted>
Tested-by: Johannes Sixt <redacted>
Signed-off-by: Junio C Hamano <redacted>
David Turner [Fri, 10 Feb 2017 21:28:22 +0000 (16:28 -0500)]
gc: ignore old gc.log files
A server can end up in a state where there are lots of unreferenced
loose objects (say, because many users are doing a bunch of rebasing
and pushing their rebased branches). Running "git gc --auto" in
this state would cause a gc.log file to be created, preventing
future auto gcs, causing pack files to pile up. Since many git
operations are O(n) in the number of pack files, this would lead to
poor performance.
Git should never get itself into a state where it refuses to do any
maintenance, just because at some point some piece of the maintenance
didn't make progress.
Teach Git to ignore gc.log files which are older than (by default)
one day old, which can be tweaked via the gc.logExpiry configuration
variable. That way, these pack files will get cleaned up, if
necessary, at least once per day. And operators who find a need for
more-frequent gcs can adjust gc.logExpiry to meet their needs.
There is also some cleanup: a successful manual gc, or a
warning-free auto gc with an old log file, will remove any old
gc.log files.
It might still happen that manual intervention is required
(e.g. because the repo is corrupt), but at the very least it won't
be because Git is too dumb to try again.
Signed-off-by: David Turner <redacted>
Helped-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Michael Haggerty [Thu, 9 Feb 2017 20:53:52 +0000 (21:53 +0100)]
read_loose_refs(): read refs using resolve_ref_recursively()
There is no need to call read_ref_full() or resolve_gitlink_ref() from
read_loose_refs(), because we already have a ref_store object in hand.
So we can call resolve_ref_recursively() ourselves. Happily, this
unifies the code for the submodule vs. non-submodule cases.
This requires resolve_ref_recursively() to be exposed to the refs
subsystem, though not to non-refs code.
Signed-off-by: Michael Haggerty <redacted>
Reviewed-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
SZEDER Gábor [Fri, 3 Feb 2017 02:53:54 +0000 (03:53 +0100)]
completion: remove redundant __gitcomp_nl() options from _git_commit()
Those two options are specifying the default values that
__gitcomp_nl() would use anyway when invoked with no options at all.
Signed-off-by: SZEDER Gábor <redacted>
Signed-off-by: Junio C Hamano <redacted>
René Scharfe [Sat, 11 Feb 2017 19:51:08 +0000 (20:51 +0100)]
rm: reuse strbuf for all remove_dir_recursively() calls, again
Don't throw the memory allocated for remove_dir_recursively() away after
a single call, use it for the other entries as well instead.
This change was done before in
deb8e15a (rm: reuse strbuf for all
remove_dir_recursively() calls), but was reverted as a side-effect of
55856a35 (rm: absorb a submodules git dir before deletion). Reinstate
the optimization.
Signed-off-by: Rene Scharfe <redacted>
Signed-off-by: Junio C Hamano <redacted>
Thomas Gummerer [Sun, 12 Feb 2017 21:54:14 +0000 (21:54 +0000)]
Documentation/stash: remove mention of git reset --hard
Don't mention git reset --hard in the documentation for git stash save.
It's an implementation detail that doesn't matter to the end user and
thus shouldn't be exposed to them. In addition it's not quite true for
git stash -p, and will not be true when a filename argument to limit the
stash to a few files is introduced.
Signed-off-by: Thomas Gummerer <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jeff King [Mon, 13 Feb 2017 21:05:49 +0000 (16:05 -0500)]
docs/git-submodule: fix unbalanced quote
The documentation gives an example of the submodule foreach
command that uses both backticks and single-quotes. We stick
the whole thing inside "+" markers to make it monospace, but
the inside punctuation still needs escaping. We handle the
backticks with "{backtick}", and use backslash-escaping for
the single-quotes.
But we missed the escaping on the second quote. Fortunately,
asciidoc renders this unbalanced quote as we want (showing
the quote), but asciidoctor does not. We could fix it by
adding the missing backslash.
However, let's take a step back. Even when rendered
correctly, it's hard to read a long command stuck into the
middle of a paragraph, and the important punctuation is hard
to notice. Let's instead bump it into its own single-line
code block. That makes both the source and the rendered
result more readable, and as a bonus we don't have to worry
about quoting at all.
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jeff King [Mon, 13 Feb 2017 20:38:35 +0000 (15:38 -0500)]
docs/gitremote-helpers: fix unbalanced quotes
Each of these options is missing the closing single-quote on
the option name. This understandably confuses asciidoc,
which ends up rendering a stray quote, like:
option cloning {'true|false}
Signed-off-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
SZEDER Gábor [Mon, 13 Feb 2017 19:20:36 +0000 (20:20 +0100)]
completion: restore removed line continuating backslash
Recent commit
1cd23e9e0 (completion: don't use __gitdir() for git
commands, 2017-02-03) rewrapped a couple of long lines, and while
doing so it inadvertently removed a '\' from the end of a line, thus
breaking completion for 'git config remote.name.push <TAB>'.
Signed-off-by: SZEDER Gábor <redacted>
Signed-off-by: Junio C Hamano <redacted>
René Scharfe [Fri, 10 Feb 2017 20:03:30 +0000 (21:03 +0100)]
ls-files: move only kept cache entries in prune_cache()
prune_cache() first identifies those entries at the start of the sorted
array that can be discarded. Then it moves the rest of the entries up.
Last it identifies the unwanted trailing entries among the moved ones
and cuts them off.
Change the order: Identify both start *and* end of the range to keep
first and then move only those entries to the top. The resulting code
is slightly shorter and a bit more efficient.
Signed-off-by: Rene Scharfe <redacted>
Reviewed-by: Brandon Williams <redacted>
Signed-off-by: Junio C Hamano <redacted>
René Scharfe [Fri, 10 Feb 2017 19:42:28 +0000 (20:42 +0100)]
ls-files: pass prefix length explicitly to prune_cache()
The function prune_cache() relies on the fact that it is only called on
max_prefix and sneakily uses the matching global variable max_prefix_len
directly. Tighten its interface by passing both the string and its
length as parameters. While at it move the NULL check into the function
to collect all cache-pruning related logic in one place.
Signed-off-by: Rene Scharfe <redacted>
Reviewed-by: Brandon Williams <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jiang Xin [Mon, 13 Feb 2017 16:19:11 +0000 (00:19 +0800)]
Merge branch 'master' of git://github.com/nafmo/git-l10n-sv
* 'master' of git://github.com/nafmo/git-l10n-sv:
l10n: sv.po: Update Swedish translation (3137t0f0u)
Jiang Xin [Mon, 13 Feb 2017 16:17:21 +0000 (00:17 +0800)]
Merge branch 'fr_v2.11.0_rnd1' of git://github.com/jnavila/git
* 'fr_v2.11.0_rnd1' of git://github.com/jnavila/git:
l10n: fr.po: v2.11-rc0 first round
l10n: fr.po: Fix a typo in the French translation
l10n: fr.po: Remove gender specific adjectives
l10n: fr.po: Fix typos
René Scharfe [Sat, 11 Feb 2017 13:58:44 +0000 (14:58 +0100)]
cocci: detect useless free(3) calls
Add a semantic patch for removing checks that cause free(3) to only be
called with a NULL pointer, as that must be a programming mistake.
Signed-off-by: Rene Scharfe <redacted>
Signed-off-by: Junio C Hamano <redacted>
Peter Krefting [Sat, 11 Feb 2017 19:19:48 +0000 (20:19 +0100)]
l10n: sv.po: Update Swedish translation (3137t0f0u)
Signed-off-by: Peter Krefting <redacted>
Jean-Noel Avila [Wed, 8 Feb 2017 20:36:33 +0000 (21:36 +0100)]
l10n: fr.po: v2.11-rc0 first round
Signed-off-by: Jean-Noel Avila <redacted>
Changwoo Ryu [Sat, 11 Feb 2017 02:29:32 +0000 (11:29 +0900)]
l10n: ko.po: Update Korean translation
Signed-off-by: Changwoo Ryu <redacted>
Jeff Hostetler [Fri, 10 Feb 2017 15:10:39 +0000 (16:10 +0100)]
preload-index: avoid lstat for skip-worktree items
Teach preload-index to avoid lstat() calls for index-entries
with skip-worktree bit set. This is a performance optimization.
During a sparse-checkout, the skip-worktree bit is set on items
that were not populated and therefore are not present in the
worktree. The per-thread preload-index loop performs a series
of tests on each index-entry as it attempts to compare the
worktree version with the index and mark them up-to-date.
This patch short-cuts that work.
On a Windows 10 system with a very large repo (450MB index)
and various levels of sparseness, performance was improved
in the {preloadindex=true, fscache=false} case by 80% and
in the {preloadindex=true, fscache=true} case by 20% for various
commands.
Signed-off-by: Jeff Hostetler <redacted>
Signed-off-by: Johannes Schindelin <redacted>
Signed-off-by: Junio C Hamano <redacted>
Lars Schneider [Thu, 9 Feb 2017 15:06:56 +0000 (16:06 +0100)]
git-p4: fix git-p4.pathEncoding for removed files
In
a9e38359e3 we taught git-p4 a way to re-encode path names from what
was used in Perforce to UTF-8. This path re-encoding worked properly for
"added" paths. "Removed" paths were not re-encoded and therefore
different from the "added" paths. Consequently, these files were not
removed in a git-p4 cloned Git repository because the path names did not
match.
Fix this by moving the re-encoding to a place that affects "added" and
"removed" paths. Add a test to demonstrate the issue.
Signed-off-by: Lars Schneider <redacted>
Reviewed-by: Luke Diamand <redacted>
Signed-off-by: Junio C Hamano <redacted>
Junio C Hamano [Thu, 9 Feb 2017 17:20:25 +0000 (09:20 -0800)]
connect.c: stop conflating ssh command names and overrides
dd33e07766 ("connect: Add the envvar GIT_SSH_VARIANT and ssh.variant
config", 2017-02-01) attempted to add support for configuration and
environment variable to override the different handling of
port_option and needs_batch settings suitable for variants of the
ssh implementation that was autodetected by looking at the ssh
command name. Because it piggybacked on the code that turns command
name to specific override (e.g. "plink.exe" and "plink" means
port_option needs to be set to 'P' instead of the default 'p'), yet
it defined a separate namespace for these overrides (e.g. "putty"
can be usable to signal that port_option needs to be 'P'), however,
it made the auto-detection based on the command name less robust
(e.g. the code now accepts "putty" as a SSH command name and applies
the same override).
Separate the code that interprets the override that was read from
the configuration & environment from the original code that handles
the command names, as they are in separate namespaces, to fix this
confusion.
This incidentally also makes it easier for future enhancement of the
override syntax (e.g. "port_option=p,needs_batch=1" may want to be
accepted as a more explicit syntax) without affecting the code for
auto-detection based on the command name.
While at it, update the return type of the handle_ssh_variant()
helper function to void; the caller does not use it, and the
function does not return any meaningful value.
Signed-off-by: Junio C Hamano <redacted>
Linus Torvalds [Wed, 8 Feb 2017 05:08:15 +0000 (21:08 -0800)]
pathspec: don't error out on all-exclusionary pathspec patterns
Instead of erroring out and telling the user that they should add a
positive pattern that covers everything else, just _do_ that.
For commands where we honor the current cwd by default (ie grep, ls-files
etc), we make that default positive pathspec be the current working
directory. And for commands that default to the whole project (ie diff,
log, etc), the default positive pathspec is the whole project.
Signed-off-by: Linus Torvalds <redacted>
Signed-off-by: Junio C Hamano <redacted>
Linus Torvalds [Wed, 8 Feb 2017 05:05:28 +0000 (21:05 -0800)]
pathspec magic: add '^' as alias for '!'
The choice of '!' for a negative pathspec ends up not only not matching
what we do for revisions, it's also a horrible character for shell
expansion since it needs quoting.
So add '^' as an alternative alias for an excluding pathspec entry.
Signed-off-by: Linus Torvalds <redacted>
Signed-off-by: Junio C Hamano <redacted>
Junio C Hamano [Fri, 10 Feb 2017 20:54:23 +0000 (12:54 -0800)]
Git 2.12-rc1
Signed-off-by: Junio C Hamano <redacted>
Junio C Hamano [Fri, 10 Feb 2017 20:52:27 +0000 (12:52 -0800)]
Merge branch 'nd/rev-list-all-includes-HEAD-doc'
Doc update.
* nd/rev-list-all-includes-HEAD-doc:
rev-list-options.txt: update --all about HEAD
Junio C Hamano [Fri, 10 Feb 2017 20:52:27 +0000 (12:52 -0800)]
Merge branch 'rs/fill-directory-optim'
Code clean-up.
* rs/fill-directory-optim:
dir: avoid allocation in fill_directory()
Junio C Hamano [Fri, 10 Feb 2017 20:52:26 +0000 (12:52 -0800)]
Merge branch 'jk/log-graph-name-only'
"git log --graph" did not work well with "--name-only", even though
other forms of "diff" output were handled correctly.
* jk/log-graph-name-only:
diff: print line prefix for --name-only output
Junio C Hamano [Fri, 10 Feb 2017 20:52:26 +0000 (12:52 -0800)]
Merge branch 'da/t7800-cleanup'
Test updates.
* da/t7800-cleanup:
t7800: replace "wc -l" with test_line_count
Junio C Hamano [Fri, 10 Feb 2017 20:52:26 +0000 (12:52 -0800)]
Merge branch 'dl/difftool-doc-no-gui-option'
Doc update.
* dl/difftool-doc-no-gui-option:
Document the --no-gui option in difftool
Junio C Hamano [Fri, 10 Feb 2017 20:52:25 +0000 (12:52 -0800)]
Merge branch 'js/difftool-builtin'
A few hot-fixes to C-rewrite of "git difftool".
* js/difftool-builtin:
t7800: simplify basic usage test
difftool: fix bug when printing usage
Junio C Hamano [Fri, 10 Feb 2017 20:52:25 +0000 (12:52 -0800)]
Merge branch 'rs/p5302-create-repositories-before-tests'
Adjust a perf test to new world order where commands that do
require a repository are really strict about having a repository.
* rs/p5302-create-repositories-before-tests:
p5302: create repositories for index-pack results explicitly
Junio C Hamano [Fri, 10 Feb 2017 20:52:25 +0000 (12:52 -0800)]
Merge branch 'ps/worktree-prune-help-fix'
Incorrect usage help message for "git worktree prune" has been fixed.
* ps/worktree-prune-help-fix:
worktree: fix option descriptions for `prune`
Junio C Hamano [Fri, 10 Feb 2017 20:52:24 +0000 (12:52 -0800)]
Merge branch 'ew/complete-svn-authorship-options'
Correct command line completion (in contrib/) on "git svn"
* ew/complete-svn-authorship-options:
completion: fix git svn authorship switches
Junio C Hamano [Fri, 10 Feb 2017 20:52:23 +0000 (12:52 -0800)]
Merge branch 'jk/reset-to-break-a-commit-doc'
A minor doc update.
* jk/reset-to-break-a-commit-doc:
reset: add an example of how to split a commit into two
Junio C Hamano [Fri, 10 Feb 2017 20:52:23 +0000 (12:52 -0800)]
Merge branch 'bw/push-submodule-only'
Add missing documentation update to a recent topic.
* bw/push-submodule-only:
completion: add completion for --recurse-submodules=only
doc: add doc for git-push --recurse-submodules=only
Michael Haggerty [Fri, 10 Feb 2017 11:16:18 +0000 (12:16 +0100)]
files_ref_store::submodule: use NULL for the main repository
The old practice of storing the empty string in this member for the main
repository was a holdover from before
00eebe3 (refs: create a base class
"ref_store" for files_ref_store, 2016-09-04), when the submodule was
stored in a flex array at the end of `struct files_ref_store`. Storing
NULL for this case is more idiomatic and a tiny bit less code.
Signed-off-by: Michael Haggerty <redacted>
Reviewed-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Michael Haggerty [Fri, 10 Feb 2017 11:16:17 +0000 (12:16 +0100)]
base_ref_store_init(): remove submodule argument
This is another step towards weakening the 1:1 relationship between
ref_stores and submodules.
Signed-off-by: Michael Haggerty <redacted>
Reviewed-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Michael Haggerty [Fri, 10 Feb 2017 11:16:16 +0000 (12:16 +0100)]
refs: push the submodule attribute down
Push the submodule attribute down from ref_store to files_ref_store.
This is another step towards loosening the 1:1 connection between
ref_stores and submodules.
Signed-off-by: Michael Haggerty <redacted>
Reviewed-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Michael Haggerty [Fri, 10 Feb 2017 11:16:15 +0000 (12:16 +0100)]
refs: store submodule ref stores in a hashmap
Aside from scaling better, this means that the submodule name needn't be
stored in the ref_store instance anymore (which will be changed in a
moment). This, in turn, will help loosen the strict 1:1 relationship
between ref_stores and submodules.
Signed-off-by: Michael Haggerty <redacted>
Reviewed-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Michael Haggerty [Fri, 10 Feb 2017 11:16:14 +0000 (12:16 +0100)]
register_ref_store(): new function
Move the responsibility for registering the ref_store for a submodule
from base_ref_store_init() to a new function, register_ref_store(). Call
the latter from ref_store_init().
Signed-off-by: Michael Haggerty <redacted>
Reviewed-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Michael Haggerty [Fri, 10 Feb 2017 11:16:13 +0000 (12:16 +0100)]
refs: remove some unnecessary handling of submodule == ""
The only external entry point to the ref_store lookup functions is
get_ref_store(), which ensures that submodule == "" is passed along as
NULL. So ref_store_init() and lookup_ref_store() don't have to handle
submodule being specified as the empty string.
Signed-off-by: Michael Haggerty <redacted>
Reviewed-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Michael Haggerty [Fri, 10 Feb 2017 11:16:12 +0000 (12:16 +0100)]
refs: make some ref_store lookup functions private
The following functions currently don't need to be exposed:
* ref_store_init()
* lookup_ref_store()
That might change in the future, but for now make them private.
Signed-off-by: Michael Haggerty <redacted>
Reviewed-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Michael Haggerty [Fri, 10 Feb 2017 11:16:11 +0000 (12:16 +0100)]
refs: reorder some function definitions
This avoids the need to add forward declarations in the next step.
Signed-off-by: Michael Haggerty <redacted>
Reviewed-by: Jeff King <redacted>
Signed-off-by: Junio C Hamano <redacted>
Jeff Hostetler [Thu, 9 Feb 2017 22:27:49 +0000 (23:27 +0100)]
mingw: use OpenSSL's SHA-1 routines
Use OpenSSL's SHA-1 routines rather than builtin block-sha1 routines.
This improves performance on SHA1 operations on Intel processors.
OpenSSL 1.0.2 has made considerable performance improvements and
support the Intel hardware acceleration features. See:
https://software.intel.com/en-us/articles/improving-openssl-performance
https://software.intel.com/en-us/articles/intel-sha-extensions
To test this I added/staged a single file in a gigantic
repository having a 450MB index file. The code in read-cache.c
verifies the header SHA as it reads the index and computes a new
header SHA as it writes out the new index. Therefore, in this test
the SHA code must process 900MB of data. Testing was done on an
Intel I7-4770 CPU @ 3.40GHz (Intel64, Family 6, Model 60) CPU.
The block-sha1 version averaged 5.27 seconds.
The OpenSSL version averaged 4.50 seconds.
================================================================
$ echo xxx >> project.mk
$ time /e/blk_sha/bin/git.exe add project.mk
real 0m5.207s
user 0m0.000s
sys 0m0.250s
$ echo xxx >> project.mk
$ time /e/blk_sha/bin/git.exe add project.mk
real 0m5.362s
user 0m0.015s
sys 0m0.234s
$ echo xxx >> project.mk
$ time /e/blk_sha/bin/git.exe add project.mk
real 0m5.300s
user 0m0.016s
sys 0m0.250s
$ echo xxx >> project.mk
$ time /e/blk_sha/bin/git.exe add project.mk
real 0m5.216s
user 0m0.000s
sys 0m0.250s
================================================================
$ echo xxx >> project.mk
$ time /e/openssl/bin/git.exe add project.mk
real 0m4.431s
user 0m0.000s
sys 0m0.250s
$ echo xxx >> project.mk
$ time /e/openssl/bin/git.exe add project.mk
real 0m4.478s
user 0m0.000s
sys 0m0.265s
$ echo xxx >> project.mk
$ time /e/openssl/bin/git.exe add project.mk
real 0m4.690s
user 0m0.000s
sys 0m0.250s
$ echo xxx >> project.mk
$ time /e/openssl/bin/git.exe add project.mk
real 0m4.420s
user 0m0.000s
sys 0m0.234s
================================================================
Signed-off-by: Jeff Hostetler <redacted>
Signed-off-by: Johannes Schindelin <redacted>
Signed-off-by: Junio C Hamano <redacted>