Jeff King [Wed, 10 Sep 2014 10:03:52 +0000 (06:03 -0400)]
refs: write packed_refs file using stdio
We write each line of a new packed-refs file individually
using a write() syscall (and sometimes 2, if the ref is
peeled). Since each line is only about 50-100 bytes long,
this creates a lot of system call overhead.
We can instead open a stdio handle around our descriptor and
use fprintf to write to it. The extra buffering is not a
problem for us, because nobody will read our new packed-refs
file until we call commit_lock_file (by which point we have
flushed everything).
On a pathological repository with 8.5 million refs, this
dropped the time to run `git pack-refs` from 20s to 6s.
Signed-off-by: Jeff King <peff@peff.net> Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jc/config-mak-document-darwin-vs-macosx:
config.mak.uname: add hint on uname_R for MacOS X
config.mak.uname: set NO_APPLE_COMMON_CRYPTO on older systems
Junio C Hamano [Tue, 9 Sep 2014 19:54:00 +0000 (12:54 -0700)]
Merge branch 'jk/stash-list-p'
Teach "git stash list -p" to show the difference between the base
commit version and the working tree version, which is in line with
what "git show" gives.
* jk/stash-list-p:
stash: default listing to working-tree diff
Junio C Hamano [Tue, 9 Sep 2014 19:53:58 +0000 (12:53 -0700)]
Merge branch 'jc/apply-ws-prefix'
Applying a patch not generated by Git in a subdirectory used to
check the whitespace breakage using the attributes for incorrect
paths. Also whitespace checks were performed even for paths
excluded via "git apply --exclude=<path>" mechanism.
* jc/apply-ws-prefix:
apply: omit ws check for excluded paths
apply: hoist use_patch() helper for path exclusion up
apply: use the right attribute for paths in non-Git patches
"git -c section.var command" and "git -c section.var= command"
should pass the configuration differently (the former should be
a boolean true, the latter should be an empty string).
* jk/command-line-config-empty-string:
config: teach "git -c" to recognize an empty string
Junio C Hamano [Tue, 9 Sep 2014 19:53:54 +0000 (12:53 -0700)]
Merge branch 'jc/not-mingw-cygwin'
We have been using NOT_{MINGW,CYGWIN} test prerequisites long
before Peff invented support for negated prerequisites e.g. !MINGW
and we still add more uses of the former. Convert them to the
latter to avoid confusion.
* jc/not-mingw-cygwin:
test prerequisites: enumerate with commas
test prerequisites: eradicate NOT_FOO
Junio C Hamano [Tue, 2 Sep 2014 20:27:45 +0000 (13:27 -0700)]
Merge branch 'rs/strbuf-getcwd'
Reduce the use of fixed sized buffer passed to getcwd() calls
by introducing xgetcwd() helper.
* rs/strbuf-getcwd:
use strbuf_add_absolute_path() to add absolute paths
abspath: convert absolute_path() to strbuf
use xgetcwd() to set $GIT_DIR
use xgetcwd() to get the current directory or die
wrapper: add xgetcwd()
abspath: convert real_path_internal() to strbuf
abspath: use strbuf_getcwd() to remember original working directory
setup: convert setup_git_directory_gently_1 et al. to strbuf
unix-sockets: use strbuf_getcwd()
strbuf: add strbuf_getcwd()
Junio C Hamano [Tue, 2 Sep 2014 20:27:12 +0000 (13:27 -0700)]
Merge branch 'bc/archive-pax-header-mode'
Implementations of "tar" that do not understand an extended pax
header would extract the contents of it in a regular file; make
sure the permission bits of this file follows the same tar.umask
configuration setting.
* bc/archive-pax-header-mode:
archive: honor tar.umask even for pax headers
Junio C Hamano [Tue, 2 Sep 2014 20:25:03 +0000 (13:25 -0700)]
Merge branch 'jk/pretty-empty-format'
"git log --pretty/format=" with an empty format string did not mean
the more obvious "No output whatsoever" but "Use default format",
which was counterintuitive.
* jk/pretty-empty-format:
pretty: make empty userformats truly empty
pretty: treat "--format=" as an empty userformat
revision: drop useless string offset when parsing "--pretty"
Junio C Hamano [Tue, 2 Sep 2014 20:23:19 +0000 (13:23 -0700)]
Merge branch 'mm/config-edit-global'
Start "git config --edit --global" from a skeletal per-user
configuration file contents, instead of a total blank, when the
user does not already have any. This immediately reduces the need
for a later "Have you forgotten setting core.user?" and we can add
more to the template as we gain more experience.
* mm/config-edit-global:
commit: advertise config --global --edit on guessed identity
home_config_paths(): let the caller ignore xdg path
config --global --edit: create a template file if needed
Junio C Hamano [Tue, 2 Sep 2014 20:20:12 +0000 (13:20 -0700)]
Merge branch 'jc/reopen-lock-file'
There are cases where you lock and open to write a file, close it to
show the updated contents to external processes, and then have to
update the file again while still holding the lock, but the lockfile
API lacked support for such an access pattern.
* jc/reopen-lock-file:
lockfile: allow reopening a closed but still locked file
René Scharfe [Mon, 28 Jul 2014 18:33:55 +0000 (20:33 +0200)]
abspath: convert absolute_path() to strbuf
Move most of the code of absolute_path() into the new function
strbuf_add_absolute_path() and in the process transform it to use
struct strbuf and xgetcwd() instead of a PATH_MAX-sized buffer,
which can be too small on some file systems.
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Mon, 28 Jul 2014 18:31:57 +0000 (20:31 +0200)]
use xgetcwd() to set $GIT_DIR
Instead of dying of a segmentation fault if getcwd() returns NULL, use
xgetcwd() to make sure to write a useful error message and then exit
in an orderly fashion.
Suggested-by: Jeff King <peff@peff.net> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Mon, 28 Jul 2014 18:30:39 +0000 (20:30 +0200)]
use xgetcwd() to get the current directory or die
Convert several calls of getcwd() and die() to use xgetcwd() instead.
This way we get rid of fixed-size buffers (which can be too small
depending on the used file system) and gain consistent error messages.
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Mon, 28 Jul 2014 18:26:40 +0000 (20:26 +0200)]
setup: convert setup_git_directory_gently_1 et al. to strbuf
Convert setup_git_directory_gently_1() and its helper functions
setup_explicit_git_dir(), setup_discovered_git_dir() and
setup_bare_git_dir() to use a struct strbuf to hold the current working
directory. Replacing the PATH_MAX-sized buffer used before removes a
path length limition on some file systems. The functions are converted
all in one go because they all read and write the variable cwd.
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Tony Finch [Fri, 1 Aug 2014 08:15:52 +0000 (09:15 +0100)]
imap-send: create target mailbox if it is missing
Some MUAs delete their "drafts" folder when it is empty, so
git imap-send should be able to create it if necessary.
This change checks that the folder exists immediately after
login and tries to create it if it is missing.
There was some vestigial code to handle a [TRYCREATE] response
from the server when an APPEND target is missing. However this
code never ran (the create and trycreate flags were never set)
and when I tried to make it run I found that the code had already
thrown away the contents of the message it was trying to append.
Signed-off-by: Tony Finch <dot@dotat.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Sat, 23 Aug 2014 05:26:51 +0000 (01:26 -0400)]
git-prompt: do not look for refs/stash in $GIT_DIR
Since dd0b72c (bash prompt: use bash builtins to check stash
state, 2011-04-01), git-prompt checks whether we have a
stash by looking for $GIT_DIR/refs/stash. Generally external
programs should never do this, because they would miss
packed-refs.
That commit claims that packed-refs does not pack
refs/stash, but that is not quite true. It does pack the
ref, but due to a bug, fails to prune the ref. When we fix
that bug, we would want to be doing the right thing here.
Signed-off-by: Jeff King <peff@peff.net> Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu> Reviewed-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Wed, 20 Aug 2014 02:14:30 +0000 (22:14 -0400)]
intersect_paths: respect mode in git's tree-sort
When we do a combined diff, we individually diff against
each parent, and then use intersect_paths to do a parallel
walk through the sorted results and come up with a final
list of interesting paths.
The sort order here is that returned by the diffs, which
means it is in git's tree-order which sorts sub-trees as if
their paths have "/" at the end. When we do our parallel
walk, we need to use a comparison function which provides
the same order.
Since 8518ff8 (combine-diff: optimize combine_diff_path sets
intersection, 2014-01-20), we use a simple strcmp to
compare the pathnames, and get this wrong. It's somewhat
hard to trigger because normally a diff does not produce
tree entries at all, and therefore the sort order is the
same as a strcmp. However, if the "-t" option is used with
the diff, then we will produce diff_filepairs for both trees
and files.
We can use base_name_compare to do the comparison, just as
the tree-diff code does. Even though what we have are not
technically base names (they are full paths within the
tree), the end result is the same (we do not care about
interior slashes at all, only about the final character).
However, since we do not have the length of each path
stored, we take a slight shortcut: if neither of the entries
is a sub-tree then the comparison is equivalent to a strcmp.
This lets us skip the extra strlen calls in the common case
without having to reimplement base_name_compare from
scratch.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Tue, 19 Aug 2014 06:12:03 +0000 (02:12 -0400)]
Makefile: make perf tests optional for profile build
The perf tests need a repository to operate on; if none is
defined, we fall back to the repository containing our build
directory. That fails, though, for an exported tarball of
git.git, which has no repository.
Since 5d7fd6d we run the perf tests as part of "make
profile". Therefore "make profile" fails out of the box on
released tarballs of v2.1.0.
We can fix this by making the perf tests optional; if they
are skipped, we still run the regular test suite, which
should give a lot of profile data (and is what we used to do
prior to 5d7fd6d anyway).
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Sat, 16 Aug 2014 21:48:33 +0000 (23:48 +0200)]
turn path macros into inline function
Use static inline functions instead of macros for has_dos_drive_prefix,
offset_1st_component, is_dir_sep and find_last_dir_sep in order to let
the compiler do type checking.
The definitions of offset_1st_component and is_dir_sep are switched
around because the former uses the latter.
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Sixt [Wed, 13 Aug 2014 19:30:11 +0000 (21:30 +0200)]
tests: fix negated test_i18ngrep calls
The helper function test_i18ngrep pretends that it found the expected
results when it is running under GETTEXT_POISON. For this reason, it must
not be used negated like so
! test_i18ngrep foo bar
because the test case would fail under GETTEXT_POISON. The function offers
a special syntax to test that a pattern is *not* found:
test_i18ngrep ! foo bar
Convert incorrect uses to this syntax.
Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sergey Organov [Mon, 11 Aug 2014 20:22:48 +0000 (00:22 +0400)]
Documentation/git-rebase.txt: -f forces a rebase that would otherwise be a no-op
"Current branch is a descendant of the commit you are rebasing onto"
does not necessarily mean "rebase" requires "--force". For a plain
vanilla "history flattening" rebase, the rebase can be done without
forcing if there is a merge between the tip of the branch being
rebased and the commit you are rebasing onto, even if the tip is
descendant of the other.
[jc: reworded both the text and the log description]
Signed-off-by: Sergey Organov <sorganov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Tue, 12 Aug 2014 04:34:53 +0000 (00:34 -0400)]
pack-objects: turn off bitmaps when we see --shallow lines
Reachability bitmaps do not work with shallow operations,
because they cache a view of the object reachability that
represents the true objects. Whereas a shallow repository
(or a shallow operation in a repository) is inherently
cutting off the object graph with a graft.
We explicitly disallow the use of bitmaps in shallow
repositories by checking is_repository_shallow(), and we
should continue to do that. However, we also want to
disallow bitmaps when we are serving a fetch to a shallow
client, since we momentarily take on their grafted view of
the world.
It used to be enough to call is_repository_shallow at the
start of pack-objects. Upload-pack wrote the other side's
shallow state to a temporary file and pointed the whole
pack-objects process at this state with "git --shallow-file",
and from the perspective of pack-objects, we really were
in a shallow repo. But since b790e0f (upload-pack: send
shallow info over stdin to pack-objects, 2014-03-11), we do
it differently: we send --shallow lines to pack-objects over
stdin, and it registers them itself.
This means that our is_repository_shallow check is way too
early (we have not been told about the shallowness yet), and
that it is insufficient (calling is_repository_shallow is
not enough, as the shallow grafts we register do not change
its return value). Instead, we can just turn off bitmaps
explicitly when we see these lines.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
utf8.c: fix strbuf_utf8_replace() consuming data beyond input string
The main loop in strbuf_utf8_replace() could summed up as:
while ('src' is still valid) {
1) advance 'src' to copy ANSI escape sequences
2) advance 'src' to copy/replace visible characters
}
The problem is after #1, 'src' may have reached the end of the string
(so 'src' points to NUL) and #2 will continue to copy that NUL as if
it's a normal character. Because the output is stored in a strbuf,
this NUL accounted in the 'len' field as well. Check after #1 and
break the loop if necessary.
The test does not look obvious, but the combination of %>>() should
make a call trace like this
where %C(auto)%d would insert a color reset escape sequence in the end
of the string given to strbuf_utf8_replace() and show_log() uses
fwrite() to send everything to stdout (including the incorrect NUL
inserted by strbuf_utf8_replace)
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Sat, 9 Aug 2014 17:43:29 +0000 (19:43 +0200)]
read-cache: check for leading symlinks when refreshing index
Don't add paths with leading symlinks to the index while refreshing; we
only track those symlinks themselves. We already ignore them while
preloading (see read_index_preload.c).
Reported-by: Nikolay Avdeev <avdeev@math.vsu.ru> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Lukas Fleischer [Sat, 2 Aug 2014 08:39:06 +0000 (10:39 +0200)]
bundle: fix exclusion of annotated tags
In commit c9a42c4 (bundle: allow rev-list options to exclude annotated
tags, 2009-01-02), support for excluding annotated tags outside the
specified date range was added. However, the wrong order of parameters
was chosen when calling memchr().
Fix this by swapping the character to search for with the maximum length
parameter. Also cover this behavior with an additional test.
Signed-off-by: Lukas Fleischer <git@cryptocrack.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Wed, 6 Aug 2014 18:35:25 +0000 (14:35 -0400)]
stash: default listing to working-tree diff
When you list stashes, you can provide arbitrary git-log
options to change the display. However, adding just "-p"
does nothing, because each stash is actually a merge commit.
This implementation detail is easy to forget, leading to
confused users who think "-p" is not working. We can make
this easier by defaulting to "--first-parent -m", which will
show the diff against the working tree. This omits the
index portion of the stash entirely, but it's simple and it
matches what "git stash show" provides.
People who are more clueful about stash's true form can use
"--cc" to override the "-m", and the "--first-parent" will
then do nothing. For diffs, it only affects non-combined
diffs, so "--cc" overrides it. And for the traversal, we are
walking the linear reflog anyway, so we do not even care
about the parents.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Wed, 6 Aug 2014 20:09:05 +0000 (13:09 -0700)]
apply: omit ws check for excluded paths
Whitespace breakages are checked while the patch is being parsed.
Disable them at the beginning of parse_chunk(), where each
individual patch is parsed, immediately after we learn the name of
the file the patch applies to and before we start parsing the diff
contained in the patch.
One may naively think that we should be able to not just skip the
whitespace checks but simply fast-forward to the next patch without
doing anything once use_patch() tells us that this patch is not
going to be used. But in reality we cannot really skip much of the
parsing in order to do such a "fast-forward", primarily because
parsing "@@ -k,l +m,n @@" lines and counting the input lines is how
we determine the boundaries of individual patches.
Junio C Hamano [Wed, 6 Aug 2014 21:26:24 +0000 (14:26 -0700)]
apply: use the right attribute for paths in non-Git patches
We parse each patchfile and find the name of the path the patch
applies to, and then use that name to consult the attribute system
to find the whitespace rules to be used, and also the target file
(either in the working tree or in the index) to replay the changes
against.
Unlike a Git-generated patch, a non-Git patch is taken to have the
pathnames relative to the current working directory. The names
found in such a patch are modified by prepending the prefix by the
prefix_patches() helper function introduced in 56185f49 (git-apply:
require -p<n> when working in a subdirectory., 2007-02-19).
However, this prefixing is done after the patch is fully parsed and
affects only what target files are patched. Because the attributes
are checked against the names found in the patch during the parsing,
not against the final pathname, the whitespace check that is done
during parsing ends up using attributes for a wrong path for non-Git
patches.
Fix this by doing the prefix much earlier, immediately after the
header part of each patch is parsed and we learn the name of the
path the patch affects.
imap-send doc: omit confusing "to use imap-send" modifier
It wouldn't make sense for these configuration variables to be
required for Git in general to function. 'Required' in this context
means required for git imap-send to work.
Noticed while trying to figure out what the sentence describing
imap.tunnel meant.
[jn: expanded to also simplify explanation of imap.folder and
imap.host in the same way]
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
projects / thirdparty / git.git / log
