Recent update to Git LFS broke "git p4" by changing the output from
its "lfs pointer" subcommand.
* ls/p4-lfs:
git-p4: fix Git LFS pointer parsing
travis-ci: express Linux/OS X dependency versions more clearly
travis-ci: update Git-LFS and P4 to the latest version
Merge branch 'jk/push-client-deadlock-fix' into HEAD
Some Windows SDK lacks pthread_sigmask() implementation and fails
to compile the recently updated "git push" codepath that uses it.
* jk/push-client-deadlock-fix:
Windows: only add a no-op pthread_sigmask() when needed
Windows: add pthread_sigmask() that does nothing
t5504: drop sigpipe=ok from push tests
fetch-pack: isolate sigpipe in demuxer thread
send-pack: isolate sigpipe in demuxer thread
run-command: teach async threads to ignore SIGPIPE
send-pack: close demux pipe before finishing async process
The "user.useConfigOnly" configuration variable makes it an error
if users do not explicitly set user.name and user.email. However,
its check was not done early enough and allowed another error to
trigger, reporting that the default value we guessed from the
system setting was unusable. This was a suboptimal end-user
experience as we want the users to set user.name/user.email without
relying on the auto-detection at all.
* da/user-useconfigonly:
ident: give "please tell me" message upon useConfigOnly error
ident: check for useConfigOnly before auto-detection of name/email
The test scripts for "git p4" (but not "git p4" implementation
itself) has been updated so that they would work even on a system
where the installed version of Python is python 3.
* ld/p4-test-py3:
git-p4 tests: time_in_seconds should use $PYTHON_PATH
git-p4 tests: work with python3 as well as python2
git-p4 tests: cd to / before running python
Windows: only add a no-op pthread_sigmask() when needed
In f924b52 (Windows: add pthread_sigmask() that does nothing,
2016-05-01), we introduced a no-op for Windows. However, this breaks
building Git in Git for Windows' SDK because pthread_sigmask() is
already a no-op there, #define'd in the pthread_signal.h header in
/mingw64/x86_64-w64-mingw32/include/.
Let's wrap the definition of pthread_sigmask() in a guard that skips
it when compiling with MinGW-w64' headers.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'sb/submodule-path-misc-bugs' into maint
"git submodule" reports the paths of submodules the command
recurses into, but this was incorrect when the command was not run
from the root level of the superproject.
* sb/submodule-path-misc-bugs:
t7407: make expectation as clear as possible
submodule update: test recursive path reporting from subdirectory
submodule update: align reporting path for custom command execution
submodule status: correct path handling in recursive submodules
submodule update --init: correct path handling in recursive submodules
submodule foreach: correct path display in recursive submodules
Merge branch 'ky/imap-send-openssl-1.1.0' into maint
Upcoming OpenSSL 1.1.0 will break compilation b updating a few APIs
we use in imap-send, which has been adjusted for the change.
* ky/imap-send-openssl-1.1.0:
configure: remove checking for HMAC_CTX_cleanup
imap-send: avoid deprecated TLSv1_method()
imap-send: check NULL return of SSL_CTX_new()
imap-send: use HMAC() function provided by OpenSSL
Contributions-by: Matthieu Moy <Matthieu.Moy@imag.fr> Contributions-by: Stefan Tatschner <rumpelsepp@sevenbyte.org> Contributions-by: Simon P <simon.git@le-huit.fr> Contributions-by: Leander Hasty <leander@1stplayable.com> Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some multi-byte character encodings (such as Shift_JIS and GBK) have
characters whose final bytes is an ASCII '\' (0x5c), and they
will be displayed as funny-characters even if $fallback_encoding is
correct. This is because `highlight` command always expects UTF-8
encoded strings from STDIN.
On Cygwin, object creation uses the "create a temporary and then
rename it to the final name" pattern, not "create a temporary,
hardlink it to the final name and then unlink the temporary"
pattern.
This is necessary to use Git on Windows shared directories, and is
already enabled for the MinGW and plain Windows builds. It also
has been used in Cygwin packaged versions of Git for quite a while.
See http://thread.gmane.org/gmane.comp.version-control.git/291853
($gmane/275680, $gmane/291853).
"git config" had a codepath that tried to pass a NULL to
printf("%s"), which nobody seems to have noticed.
* jk/do-not-printf-NULL:
git_config_set_multivar_in_file: handle "unset" errors
git_config_set_multivar_in_file: all non-zero returns are errors
config: lower-case first word of error strings
Merge branch 'sb/submodule-helper-clone-regression-fix' into maint
A partial rewrite of "git submodule" in the 2.7 timeframe changed
the way the gitdir: pointer in the submodules point at the real
repository location to use absolute paths by accident. This has
been corrected.
* sb/submodule-helper-clone-regression-fix:
submodule--helper, module_clone: catch fprintf failure
submodule--helper: do not borrow absolute_path() result for too long
submodule--helper, module_clone: always operate on absolute paths
submodule--helper clone: create the submodule path just once
submodule--helper: fix potential NULL-dereference
recursive submodules: test for relative paths
Merge branch 'jk/branch-shortening-funny-symrefs' into maint
A change back in version 2.7 to "git branch" broke display of a
symbolic ref in a non-standard place in the refs/ hierarchy (we
expect symbolic refs to appear in refs/remotes/*/HEAD to point at
the primary branch the remote has, and as .git/HEAD to point at the
branch we locally checked out).
* jk/branch-shortening-funny-symrefs:
branch: fix shortening of non-remote symrefs
Merge branch 'es/format-patch-doc-hide-no-patch' into maint
"git format-patch --help" showed `-s` and `--no-patch` as if these
are valid options to the command. We already hide `--patch` option
from the documentation, because format-patch is about showing the
diff, and the documentation now hides these options as well.
* es/format-patch-doc-hide-no-patch:
git-format-patch.txt: don't show -s as shorthand for multiple options
When "git worktree" feature is in use, "git branch -m" renamed a
branch that is checked out in another worktree without adjusting
the HEAD symbolic ref for the worktree.
* ky/branch-m-worktree:
set_worktree_head_symref(): fix error message
branch -m: update all per-worktree HEADs
refs: add a new function set_worktree_head_symref
Merge branch 'jk/check-repository-format' into maint
The repository set-up sequence has been streamlined (the biggest
change is that there is no longer git_config_early()), so that we
do not attempt to look into refs/* when we know we do not have a
Git repository.
* jk/check-repository-format:
verify_repository_format: mark messages for translation
setup: drop repository_format_version global
setup: unify repository version callbacks
init: use setup.c's repo version verification
setup: refactor repo format reading and verification
config: drop git_config_early
check_repository_format_gently: stop using git_config_early
lazily load core.sharedrepository
wrap shared_repository global in get/set accessors
setup: document check_repository_format()
The last test added to 't5510-fetch' in 0898c9628104 (fetch: release
pack files before garbage-collecting, 2016-01-13) may sporadically
trigger following error message from the test harness:
rm: cannot remove 'trash directory.t5510-fetch/auto-gc/.git': Directory not empty
The test in question forces an auto-gc, which, if the system supports
it, runs in the background by default, and occasionally takes long
enough for the test to finish and for 'test_done' to start
housekeeping. This can lead to the test's 'git gc --auto' in the
background and 'test_done's 'rm -rf $trash' in the foreground racing
each other to create and delete files and directories. It might just
happen that 'git gc' re-creates a directory that 'rm -rf' already
visited and removed, which ultimately triggers the above error.
Disable detaching the auto-gc process to ensure that it finishes
before the test can continue, thus avoiding this racy situation.
Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
A previous change introduced a call to pthread_sigmask() in order to block
SIGPIPE in a thread. Since there are no signal facilities on Windows that
are similar to POSIX signals, just ignore the request to block the signal.
In the particular case, the effect of blocking SIGPIPE on POSIX is that
write() calls return EPIPE when the reader closes the pipe. This is how
write() behaves on Windows.
Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'tb/blame-force-read-cache-to-workaround-safe-crlf' into maint
When running "git blame $path" with unnormalized data in the index
for the path, the data in the working tree was blamed, even though
"git add" would not have changed what is already in the index, due
to "safe crlf" that disables the line-end conversion. It has been
corrected.
* tb/blame-force-read-cache-to-workaround-safe-crlf:
correct blame for files commited with CRLF
Merge branch 'sg/diff-multiple-identical-renames' into maint
"git diff -M" used to work better when two originally identical
files A and B got renamed to X/A and X/B by pairing A to X/A and B
to X/B, but this was broken in the 2.0 timeframe.
* sg/diff-multiple-identical-renames:
diffcore: fix iteration order of identical files during rename detection
0492eb48 (t9824: fix broken &&-chain in a subshell, 2016-04-24)
revealed a test that was broken from the beginning, as it expected a
wrong size. The expected size of the file under test is 39
bytes. The test checked that the size is 13 bytes, but this was not
noticed because it was breaking the &&-chain.
Fix the reference value to make the test pass.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git LFS 1.2.0 removed a preamble from the output of the 'git lfs pointer'
command [1] which broke the parsing of this output. Adjust the parser
to support the old and the new format.
Please note that this patch slightly changes the second return parameter
from a list of LF terminated strings to a single string that contains
a number of LF characters.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Helped-by: Sebastian Schuberth <sschuberth@gmail.com> Helped-by: Ben Woosley <ben.woosley@gmail.com> Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
travis-ci: express Linux/OS X dependency versions more clearly
The Git Travis CI OSX build always installs the latest versions of Git LFS and
Perforce via brew and the Linux build installs fixed versions. Consequently new
LFS/Perforce versions can break the OS X build even if there is no change in
Git.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-p4 tests: time_in_seconds should use $PYTHON_PATH
The time_in_seconds script should use $PYTHON_PATH, rather than
just hard-coded python, so that users can override which version
gets used, as is done for other python invocations.
Signed-off-by: Luke Diamand <luke@diamand.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-p4 tests: work with python3 as well as python2
Update the git-p4 tests so that they work with both
Python2 and Python3.
We have to be explicit about the difference between
Unicode text strings (Python3 default) and raw binary
strings which will be exchanged with Perforce.
Additionally, print always takes parentheses in Python3.
Signed-off-by: Luke Diamand <luke@diamand.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
difftool/mergetool: make the form of yes/no questions consistent
Every yes/no question in difftool/mergetool scripts has slightly
different form, and none of them is consistent with the form git
itself uses.
Make the form of all the questions consistent with the form used
by git.
Reviewed-by: John Keeping <john@keeping.me.uk> Signed-off-by: Nikola Forró <nforro@redhat.com> Acked-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge tag 'l10n-2.8.0-rnd3-fr' of git://github.com/git-l10n/git-po into maint
l10n-2.8.0-rnd3-fr
* tag 'l10n-2.8.0-rnd3-fr' of git://github.com/git-l10n/git-po:
l10n: fr: don't translate "merge" as a parameter
l10n: fr: change "id de clé" to match "id-clé"
l10n: fr: fix wrongly translated option name
l10n: fr: fix transcation of "dir"
Merge branch 'fr_v2.8.0_r3' of git://github.com/jnavila/git into maint
* 'fr_v2.8.0_r3' of git://github.com/jnavila/git:
l10n: fr: don't translate "merge" as a parameter
l10n: fr: change "id de clé" to match "id-clé"
l10n: fr: fix wrongly translated option name
l10n: fr: fix transcation of "dir"
mmap(win32): avoid copy-on-write when it is unnecessary
Often we are mmap()ing read-only. In those cases, it is wasteful to map in
copy-on-write mode. Even worse: it can cause errors where we run out of
space in the page file.
So let's be extra careful to map files in read-only mode whenever
possible.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
It is not really helpful when a `git fetch` fails with the message:
fatal: mmap failed: No error
In the particular instance encountered by a colleague of yours truly,
the Win32 error code was ERROR_COMMITMENT_LIMIT which means that the
page file is not big enough.
Let's make the message
fatal: mmap failed: File too large
instead, which is only marginally better, but which can be associated
with the appropriate work-around: setting `core.packedGitWindowSize` to
a relatively small value.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Its last call site was replaced by mks_tempfile_ts() in 284098f (diff:
use tempfile module - 2015-08-12) and there's a good chance
mks_tempfile_ts will continue to successfully handle this job. Delete
it.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
It was largely replaced by fnmatch_icase_mem() and its last use was in 84b8b5d (remove match_pathspec() in favor of match_pathspec_depth() -
2013-07-14).
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
These were added by 8bf4bec (add "ok=sigpipe" to
test_must_fail and use it to fix flaky tests, 2015-11-27)
because we would racily die via SIGPIPE when the pack was
rejected by the other side.
But since we have recently de-flaked send-pack, we should be
able to tighten up these tests (including re-adding the
expected output checks).
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
In commit 9ff18fa (fetch-pack: ignore SIGPIPE in sideband
demuxer, 2016-02-24), we started using sigchain_push() to
ignore SIGPIPE in the async demuxer thread. However, this is
rather clumsy, as it ignores SIGPIPE for the entire process,
including the main thread. At the time we didn't have any
per-thread signal support, but we now we do. Let's use it.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we get an error from pack-objects, we may exit
send_pack() early, before reading the server's status
response. In such a case, we may racily see SIGPIPE from our
async demuxer (which is trying to write that status back to
us), and we'd prefer to continue pushing the error up the
call stack, rather than taking down the whole process with
signal death.
This is safe to do because our demuxer just calls
recv_sideband, whose data writes are all done with
write_or_die(), which will notice SIGPIPE.
We do also write sideband 2 to stderr, and we would no
longer die on SIGPIPE there (if it were piped in the first
place, and if the piped program went away). But that's
probably a good thing, as it likewise should not abort the
push process at all (neither immediately by signal, nor
eventually by reporting failure back to the main thread).
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
run-command: teach async threads to ignore SIGPIPE
Async processes can be implemented as separate forked
processes, or as threads (depending on the NO_PTHREADS
setting). In the latter case, if an async thread gets
SIGPIPE, it takes down the whole process. This is obviously
bad if the main process was not otherwise going to die, but
even if we were going to die, it means the main process does
not have a chance to report a useful error message.
There's also the small matter that forked async processes
will not take the main process down on a signal, meaning git
will behave differently depending on the NO_PTHREADS
setting.
This patch fixes it by adding a new flag to "struct async"
to block SIGPIPE just in the async thread. In theory, this
should always be on (which makes async threads behave more
like async processes), but we would first want to make sure
that each async process we spawn is careful about checking
return codes from write() and would not spew endlessly into
a dead pipe. So let's start with it as optional, and we can
enable it for specific sites in future patches.
The natural name for this option would be "ignore_sigpipe",
since that's what it does for the threaded case. But since
that name might imply that we are ignoring it in all cases
(including the separate-process one), let's call it
"isolate_sigpipe". What we are really asking for is
isolation. I.e., not to have our main process taken down by
signals spawned by the async process. How that is
implemented is up to the run-command code.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
send-pack: close demux pipe before finishing async process
This fixes a deadlock on the client side when pushing a
large number of refs from a corrupted repo. There's a
reproduction script below, but let's start with a
human-readable explanation.
The client side of a push goes something like this:
1. Start an async process to demux sideband coming from
the server.
2. Run pack-objects to send the actual pack, and wait for
its status via finish_command().
3. If pack-objects failed, abort immediately.
4. If pack-objects succeeded, read the per-ref status from
the server, which is actually coming over a pipe from
the demux process started in step 1.
We run finish_async() to wait for and clean up the demux
process in two places. In step 3, if we see an error, we
want it to end early. And after step 4, it should be done
writing any data and we are just cleaning it up.
Let's focus on the error case first. We hand the output
descriptor to the server over to pack-objects. So by the
time it has returned an error to us, it has closed the
descriptor and the server has gotten EOF. The server will
mark all refs as failed with "unpacker error" and send us
back the status for each (followed by EOF).
This status goes to the demuxer thread, which relays it over
a pipe to the main thread. But the main thread never even
tries reading the status. It's trying to bail because of the
pack-objects error, and is waiting for the demuxer thread to
finish. If there are a small number of refs, that's OK; the
demuxer thread writes into the pipe buffer, sees EOF from
the server, and quits. But if there are a large number of
refs, it may block on write() back to the main thread,
leading to a deadlock (the main thread is waiting for the
demuxer to finish, the demuxer is waiting for the main
thread to read).
We can break this deadlock by closing the pipe between the
demuxer and the main thread before calling finish_async().
Then the demuxer gets a write() error and exits.
The non-error case usually just works, because we will have
read all of the data from the other side. We do close
demux.out already, but we only do so _after_ calling
finish_async(). This is OK because there shouldn't be any
more data coming from the server. But technically we've only
read to a flush packet, and a broken or malicious server
could be sending more cruft. In such a case, we would hit
the same deadlock. Closing the pipe first doesn't affect the
normal case, and means that for a cruft-sending server,
we'll notice a write() error rather than deadlocking.
Note that when write() sees this error, we'll actually
deliver SIGPIPE to the thread, which will take down the
whole process (unless we're compiled with NO_PTHREADS). This
isn't ideal, but it's an improvement over the status quo,
which is deadlocking. And SIGPIPE handling in async threads
is a bigger problem that we can deal with separately.
A simple reproduction for the error case is below. It's
technically racy (we could exit the main process and take
down the async thread with us before it even reads the
status), though in practice it seems to fail pretty
consistently.
git init repo &&
cd repo &&
# make some commits; we need two so we can simulate corruption
# in the history later.
git commit --allow-empty -m one &&
one=$(git rev-parse HEAD) &&
git commit --allow-empty -m two &&
two=$(git rev-parse HEAD) &&
# now make a ton of refs; our goal here is to overflow the pipe buffer
# when reporting the ref status, which will cause the demuxer to block
# on write()
for i in $(seq 20000); do
echo "create refs/heads/this-is-a-really-long-branch-name-$i $two"
done |
git update-ref --stdin &&
# now make a corruption in the history such that pack-objects will fail
rm -vf .git/objects/$(echo $one | sed 's}..}&/}') &&
# and then push the result
git init --bare dst.git &&
git push --mirror dst.git
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
When directories are moved using `git mv` all files in the directory
have been just moved, but no further action was taken on them. This
was done by assigning the mode = WORKING_DIRECTORY to the files
inside a moved directory.
submodules however need to update their link to the git directory as
well as updates to the .gitmodules file. By removing the condition of
`mode != INDEX` (the remaining modes are BOTH and WORKING_DIRECTORY) for
the required submodule actions, we perform these for submodules in a
moved directory.
Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'jv/merge-nothing-into-void' into maint
"git merge FETCH_HEAD" dereferenced NULL pointer when merging
nothing into an unborn history (which is arguably unusual usage,
which perhaps was the reason why nobody noticed it).
* jv/merge-nothing-into-void:
merge: fix NULL pointer dereference when merging nothing into void
When "git merge --squash" stopped due to conflict, the concluding
"git commit" failed to read in the SQUASH_MSG that shows the log
messages from all the squashed commits.
* ss/commit-squash-msg:
commit: do not lose SQUASH_MSG contents
The startup_info data, which records if we are working inside a
repository (among other things), are now uniformly available to Git
subcommand implementations, and Git avoids attempting to touch
references when we are not in a repository.
* jk/startup-info:
use setup_git_directory() in test-* programs
grep: turn off gitlink detection for --no-index
mailmap: do not resolve blobs in a non-repository
remote: don't resolve HEAD in non-repository
setup: set startup_info->have_repository more reliably
setup: make startup_info available everywhere
Merge branch 'jk/rev-parse-local-env-vars' into maint
The "--local-env-vars" and "--resolve-git-dir" options of "git
rev-parse" failed to work outside a repository when the command's
option parsing was rewritten in 1.8.5 era.
* jk/rev-parse-local-env-vars:
rev-parse: let some options run outside repository
t1515: add tests for rev-parse out-of-repo helpers
"git config --get-urlmatch", unlike other variants of the "git
config --get" family, did not signal error with its exit status
when there was no matching configuration.
* jk/config-get-urlmatch:
Documentation/git-config: fix --get-all description
Documentation/git-config: use bulleted list for exit codes
config: fail if --get-urlmatch finds no value
Remove extra + 1 from resp_len, the length of the byte sequence to be
Base64 encoded and passed to the server as the response. Or the response
incorrectly contains an extra \0.
Signed-off-by: Kazuki Yamaguchi <k@rhe.jp> Signed-off-by: Junio C Hamano <gitster@pobox.com>
imap-send: check for NOLOGIN capability only when using LOGIN command
Don't check for NOLOGIN (LOGINDISABLED) capability when imap.authMethod
is specified.
LOGINDISABLED capability doesn't forbid using AUTHENTICATE, so it should
be allowed, or we can't connect to IMAP servers which only accepts
AUTHENTICATE command.
Signed-off-by: Kazuki Yamaguchi <k@rhe.jp> Signed-off-by: Junio C Hamano <gitster@pobox.com>