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Before writing the shallow file, we stat() the existing file
to make sure it has not been updated since our operation
began. However, we do not do so under a lock, so there is a
possible race:
1. Process A takes the lock.
2. Process B calls check_shallow_file_for_update and finds
no update.
3. Process A commits the lockfile.
4. Process B takes the lock, then overwrite's process A's
changes.
We can fix this by doing our check while we hold the lock.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We sometimes write tempfiles of the form "shallow_XXXXXX"
during fetch/push operations with shallow repositories.
Under normal circumstances, we clean up the result when we
are done. However, we do no take steps to clean up after
ourselves when we exit due to die() or signal death.
This patch teaches the tempfile creation code to register
handlers to clean up after ourselves. To handle this, we
change the ownership semantics of the filename returned by
setup_temporary_shallow. It now keeps a copy of the filename
itself, and returns only a const pointer to it.
We can also do away with explicit tempfile removal in the
callers. They all exit not long after finishing with the
file, so they can rely on the auto-cleanup, simplifying the
code.
Note that we keep things simple and maintain only a single
filename to be cleaned. This is sufficient for the current
caller, but we future-proof it with a die("BUG").
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we are about to write the shallow file, we check that
it has not changed since we last read it. Instead of
hand-rolling this, we can use stat_validity. This is built
around the index stat-check, so it is more robust than just
checking the mtime, as we do now (it uses the same check as
we do for index files).
The new code also handles the case of a shallow file
appearing unexpectedly. With the current code, two
simultaneous processes making us shallow (e.g., two "git
fetch --depth=1" running at the same time in a non-shallow
repository) can race to overwrite each other.
As a bonus, we also remove a race in determining the stat
information of what we read (we stat and then open, leaving
a race window; instead we should open and then fstat the
descriptor).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git merge-base --octopus" used to leave cleaning up suboptimal
result to the caller, but now it does the clean-up itself.
* bm/merge-base-octopus-dedup:
merge-base --octopus: reduce the result from get_octopus_merge_bases()
merge-base: separate "--independent" codepath into its own helper
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"git log --left-right A...B" lost the "leftness" of commits
reachable from A when A is a tag as a side effect of a recent
bugfix. This is a regression in 1.8.4.x series.
* jc/revision-range-unpeel:
revision: propagate flag bits from tags to pointees
revision: mark contents of an uninteresting tree uninteresting
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"git clone" would fail to clone from a repository that has a ref
directly under "refs/", e.g. "refs/stash", because different
validation paths do different things on such a refname. Loosen the
client side's validation to allow such a ref.
* jk/allow-fetch-onelevel-refname:
fetch-pack: do not filter out one-level refs
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A handful of bugs around interpreting $branch@{upstream} notation
and its lookalike, when $branch part has interesting characters,
e.g. "@", and ":", have been fixed.
* jk/interpret-branch-name-fix:
interpret_branch_name: find all possible @-marks
interpret_branch_name: avoid @{upstream} past colon
interpret_branch_name: always respect "namelen" parameter
interpret_branch_name: rename "cp" variable to "at"
interpret_branch_name: factor out upstream handling
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A recent update to "git send-email" broke platforms where
/etc/ssl/certs/ directory exists but cannot be used as SSL_ca_path
(e.g. Fedora rawhide).
* rk/send-email-ssl-cert:
send-email: /etc/ssl/certs/ directory may not be usable as ca_path
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"git repack --max-pack-size=8g" stopped being parsed correctly when
the command was reimplemented in C.
* sb/repack-in-c:
repack: propagate pack-objects options as strings
repack: make parsed string options const-correct
repack: fix typo in max-pack-size option
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The pathspec matching code, while comparing two trees (e.g. "git
diff A B -- path1 path2") was too aggressive and failed to match
some paths when multiple pathspecs were involved.
* as/tree-walk-fix-aggressive-short-cut:
tree_entry_interesting: match against all pathspecs
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* 'master' of git://github.com/git-l10n/git-po:
l10n: de.po: correct message when hiding commits by craft
l10n: de.po: translate 28 new messages
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The recent translation was giving the idea that all commits
based on a graft were meant to be hidden. Make it clear that
it is the graft commit itself.
Reported-by: David Kastrup <dak@gnu.org>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
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Translate 28 new messages came from git.pot update in
df49095 (l10n: git.pot: v1.9 round 1 (27 new, 11 removed)
and d57b24b (l10n: git.pot: v1.9 round 2 (1 new)).
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
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* 'master' of git://github.com/git-l10n/git-po:
l10n: zh_CN.po: Disambiguation for rebase
l10n: zh_CN.po: translate 1 new message (2211t0f0u)
l10n: vi.po (2211t): Updated one new string
l10n: Update Swedish translation (2211t0f0u)
l10n: fr: 1.9rc2 2211t
l10n: git.pot: v1.9 round 2 (1 new)
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Various typofixes, all looked correct.
* ow/manpages-typofix:
Documentation: fix typos in man pages
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* aj/ada-diff-word-pattern:
userdiff: update Ada patterns
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* nd/tag-doc:
git-tag.txt: <commit> for --contains is optional
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Disambiguate the Chinese translation for "rebase", and update other
related entries.
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
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Signed-off-by: Øystein Walle <oystwa@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We wanted to call the upcoming release "Git 1.9", with its
maintenance track being "Git 1.9.1", "Git 1.9.2", etc., but various
third-party tools are reported to assume that there are at least
three dewey-decimal components in our version number.
Adjust the plan so that vX.Y.0 are feature releases while vX.Y.Z
(Z > 0) are maintenance releases.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The documentation to "git pull" hinted there is an "-m" option
because it incorrectly shared the documentation with "git merge".
* jc/maint-pull-docfix:
Documentation: "git pull" does not have the "-m" option
Documentation: exclude irrelevant options from "git pull"
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The implementation of 'git stash $cmd "stash@{...}"' did not quote
the stash argument properly and left it split at IFS whitespace.
* ow/stash-with-ifs:
stash: handle specifying stashes with $IFS
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There is no reason to have a hardcoded upper limit of the number of
parents for an octopus merge, created via the graft mechanism, but
there was.
* js/lift-parent-count-limit:
Remove the line length limit for graft files
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"git add -A" (no other arguments) in a totally empty working tree
used to emit an error.
* nd/add-empty-fix:
add: don't complain when adding empty project root
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"git log --decorate" did not handle a tag pointed by another tag
nicely.
* bc/log-decoration:
log: properly handle decorations with chained tags
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When we figure out how many file descriptors to allocate for
keeping packfiles open, a system with non-working getrlimit() could
cause us to die(), but because we make this call only to get a
rough estimate of how many is available and we do not even attempt
to use up all file descriptors available ourselves, it is nicer to
fall back to a reasonable low value rather than dying.
* jh/rlimit-nofile-fallback:
get_max_fd_limit(): fall back to OPEN_MAX upon getrlimit/sysconf failure
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"git commit -v" appends the patch to the log message before
editing, and then removes the patch when the editor returned
control. However, the patch was not stripped correctly when the
first modified path was a submodule.
* jl/commit-v-strip-marker:
commit -v: strip diffs and submodule shortlogs from the commit message
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SSL-related options were not passed correctly to underlying socket
layer in "git send-email".
* tr/send-email-ssl:
send-email: set SSL options through IO::Socket::SSL::set_client_defaults
send-email: --smtp-ssl-cert-path takes an argument
send-email: pass Debug to Net::SMTP::SSL::new
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Remote repository URL expressed in scp-style host:path notation are
parsed more carefully (e.g. "foo/bar:baz" is local, "[::1]:/~user" asks
to connect to user's home directory on host at address ::1.
* tb/clone-ssh-with-colon-for-port:
git_connect(): use common return point
connect.c: refactor url parsing
git_connect(): refactor the port handling for ssh
git fetch: support host:/~repo
t5500: add test cases for diag-url
git fetch-pack: add --diag-url
git_connect: factor out discovery of the protocol and its parts
git_connect: remove artificial limit of a remote command
t5601: add tests for ssh
t5601: remove clear_ssh, refactor setup_ssh_wrapper
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"git fetch --depth=0" was a no-op, and was silently ignored.
Diagnose it as an error.
* nd/transport-positive-depth-only:
clone,fetch: catch non positive --depth option value
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Finishing touches to the "rewrite repack in C" series.
* 'tb/repack-fix-renames' (early part):
repack.c: rename and unlink pack file if it exists
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When a repo was fully repacked, and is repacked again, we may run
into the situation that "new" packfiles have the same name as
already existing ones (traditionally packfiles have been named after
the list of names of objects in them, so repacking all the objects
in a single pack would have produced a packfile with the same name).
The logic is to rename the existing ones into filename like
"old-XXX", create the new ones and then remove the "old-" ones.
When something went wrong in the middle, this sequence is rolled
back by renaming the "old-" files back.
The renaming into "old-" did not work as intended, because
file_exists() was done on "XXX", not "pack-XXX". Also when rolling
back the change, the code tried to rename "old-pack-XXX" but the
saved ones are named "old-XXX", so this couldn't have worked.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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- Allow extra space in "is new" and "is separate"
- Fix bug in word regex for numbers
Signed-off-by: Adrian Johnson <ajohnson@redneon.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This goes far back to e84fb2f (branch --contains: default to HEAD -
2008-07-08) where the same parsing code is shared with
builtin/tag.c. git-branch.txt correctly states that <commit> for
--contains is optional while git-tag.txt does not. Correct it.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Update translation for git v1.9-rc2.
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
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* 'master' of git://github.com/nafmo/git-l10n-sv:
l10n: Update Swedish translation (2211t0f0u)
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* 'master' of git://github.com/vnwildman/git:
l10n: vi.po (2211t): Updated one new string
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Signed-off-by: Tran Ngoc Quan <vnwildman@gmail.com>
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Signed-off-by: Peter Krefting <peter@softwolves.pp.se>
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Signed-off-by: Jean-Noel Avila <jn.avila@free.fr>
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Generate po/git.pot from v1.9-rc2 for git v1.9 l10n round 2.
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* 'master' of git://github.com/git-l10n/git-po:
l10n: Bulgarian translation of git (222t21f1967u)
po/TEAMS: Added Bulgarian team
l10n: remove 2 blank translations on Danish, Dutch
l10n: zh_CN.po: translate 27 messages (2210t0f0u)
l10n: Update Swedish translation (2210t0f0u)
[fr] update french translation 2210/2210
l10n: vi.po (2210t): Updated git-core translation
l10n: git.pot: v1.9 round 1 (27 new, 11 removed)
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Jeff King
Junio C Hamano
Michael J Gruber
Ralf Thielow
Jiang Xin
Øystein Walle
Torsten Bögershausen
Adrian Johnson
Nguyễn Thái Ngọc Duy
Tran Ngoc Quan
Peter Krefting
Jean-Noel Avila