Since 8de7eeb54b (compression: unify pack.compression configuration
parsing, 2016-11-15) the variables core_compression_level and
core_compression_seen are only set, but never read. Remove them.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The t5562 script occasionally takes 60 extra seconds to complete due to
a race condition in the invoke-with-content-length.pl helper.
The way it's supposed to work is this:
- we set up a SIGCLD handler
- we kick off http-backend and write to it with a set content-length,
but _don't_ close the pipe
- we sleep for 60 seconds, assuming that SIGCLD from http-backend
finishing will interrupt us
- after the sleep finishes (whetherby 60 seconds or because it was
interrupted by the signal), we check a flag to see if our SIGCLD
handler was called. If not, then we complain.
This usually completes immediately, because the signal interrupts our
sleep. But very occasionally the child process dies _before_ we hit the
sleep, so we don't realize it. The test still completes successfully
(because our $exited flag is set), but it takes an extra 60 seconds.
There's no way to check the flag and sleep atomically. So the best we
can do with this approach is to sleep in smaller chunks (say, 1 second)
and check the flag incrementally. Then we waste a maximum of 1 second if
we lose the race. This was proposed in:
https://lore.kernel.org/git/20190218205028.32486-1-max@max630.net/
and it does work. But we can do better.
Instead of blocking on sleep and waiting for the child signal to
interrupt us, we can block on the child exiting and set an alarm signal
to trigger the timeout.
This lets us exit the script immediately when the child behaves (with no
race possible), and wait a maximum of 60 seconds when it doesn't.
Note one small subtlety: perl is very willing to restart the waitpid()
call after the alarm is delivered, even if we've thrown an exception via
die. "perldoc -f alarm" claims you can get around this with an eval/die
combo (and even has some example code), but it doesn't seem to work for
me with waitpid(); instead, we continue waiting until the child exits.
So instead, we'll instruct the child process to exit in the alarm
handler itself. In the original code this was done by calling
close($out). That would continue to work, since our child is always
http-backend, which should exit when its stdin closes. But we can be
even more robust against a hung or confused child by sending a KILL
signal, which should terminate it immediately.
Reported-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Replace the catch-all error message with specific ones for opening and
duplicating by calling the wrappers xopen and xdup. The code becomes
easier to follow when error handling is reduced to two letters.
Remove the unnecessary mode parameter while at it -- we expect /dev/null
to already exist.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Back when a1be47e4 (hash-object: fix buffer reuse with --path in a
subdirectory, 2017-03-20) was written, the prefix_filename() helper
used a static piece of memory to the caller, making the caller
responsible for copying it, if it wants to keep it across another
call to the same function. Two callers of the prefix_filename() in
hash-object were made to xstrdup() the value obtained from it.
But in the same series, when e4da43b1 (prefix_filename: return newly
allocated string, 2017-03-20) changed the rule to gave the caller
possession of the memory, we forgot to revert one of the xstrdup()
changes, allowing the returned value to leak.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git bugreport writes bug report to the current directory by default,
instead of repository root.
Fix the documentation.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This script was added in f28ac70f48 (Move all dashed-form commands to
libexecdir, 2007-11-28) when commands such as "git-add" lived in the
bin directory, instead of the git exec directory.
This notice helped someone incorrectly installing version v1.6.0 and
later into a directory built for a pre-v1.6.0 git version.
We're now long past the point where anyone who'd be helped by this
warning is likely to be doing that, so let's just remove this check
and warning to simplify the Makefile.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In make_remote(), we store the return value of hashmap_put() and check
it using assert(), but don't otherwise use it. If Git is compiled with
NDEBUG, then the assert() becomes a noop, and nobody looks at the
variable at all. This causes some compilers to produce warnings.
Let's switch it instead to a BUG(). This accomplishes the same thing,
but is always compiled in (and we don't have to worry about the cost;
the check is cheap, and this is not a hot code path).
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Remove the trailing dot from the warning we emit about gc.log. It's
common for various terminal UX's to allow the user to select "words",
and by including the trailing dot a user wanting to select the path to
gc.log will need to manually remove the trailing dot.
Such a user would also probably need to adjust the path if it e.g. had
spaces in it, but this should address this very common case.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Suggested-by: Jan Judas <snugar.i@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the free_mailmap_entry() code added in 0925ce4d49 (Add map_user()
and clear_mailmap() to mailmap, 2009-02-08) the intent was clearly to
clear the "me" structure, but while we freed parts of the
mailmap_entry structure, we didn't free the structure itself. The same
goes for the "mailmap_info" structure.
This brings the number of SANITIZE=leak failures in t4203-mailmap.sh
down from 50 to 49. Not really progress as far as the number of
failures is concerned, but as far as I can tell this fixes all leaks
in mailmap.c itself. There's still users of it such as builtin/log.c
that call read_mailmap() without a clear_mailmap(), but that's on
them.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix a memory leak in a2ba162cda (object-info: support for retrieving
object info, 2021-04-20) which appears to have been based on a
misunderstanding of how the pkt-line.c API works. There is no need to
strdup() input to packet_writer_write(), it's just a printf()-like
format function.
This fixes a potentially large memory leak, since the number of OID
lines the "object-info" call can be arbitrarily large (or a small one
if the request is small).
This makes t5701-git-serve.sh pass again under SANITIZE=leak, as it
did before a2ba162cda.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Bruno Albuquerque <bga@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix syntax and correct the format of printf in MyFirstObjectWalk.txt
Signed-off-by: Zoker <kaixuanguiqu@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Pass the struct object_id on instead of just its hash member.
This is simpler and avoids the need to guess the algorithm.
Signed-off-by: René Scharfe <l.s.r@web.de>
Acked-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Only one of the callers of rev_is_head() provides two hashes to compare.
Move that check there and convert it to struct object_id.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add and apply a semantic patch for using xopen() instead of calling
open(2) and die() or die_errno() explicitly. This makes the error
messages more consistent and shortens the code.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the flags O_CREAT and O_EXCL are both given then open(2) is supposed
to create the file and error out if it already exists. The error
message in that case looks like this:
fatal: could not open 'foo' for writing: File exists
Without further context this is confusing: Why should the existence of
the file pose a problem? Isn't that a requirement for writing to it?
Add a more specific error message for that case to tell the user that we
actually don't expect the file to preexist, so the example becomes:
fatal: unable to create 'foo': File exists
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In test_atom(), we're piping the output of cat-file to tail(1),
thus, losing its exit status.
Let's use a temporary file to preserve git exit status code.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In t6300, some tests are guarded behind some prerequisites.
Thus, objects created by those tests ain't available if those
prerequisites are unsatistified. Attempting to run "cat-file"
on those objects will run into failure.
In fact, running t6300 in an environment without gpg(1),
we'll see those warnings:
fatal: Not a valid object name refs/tags/signed-empty
fatal: Not a valid object name refs/tags/signed-short
fatal: Not a valid object name refs/tags/signed-long
Let's put those commands into the real tests, in order to:
* skip their execution if prerequisites aren't satistified.
* check their exit status code
The expected value for objects with type: commit needs to be
computed outside the test because we can't rely on "$3" there.
Furthermore, to prevent the accidental usage of that computed
expected value, BUG out on unknown object's type.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 0696232390 (pack-redundant: fix crash when one packfile in repo,
2020-12-16) added one some new tests to t5323. At the time, the sub-repo
we used was called "master". But in a parallel branch, this was switched
to "main".
When the latter branch was merged in 27d7c8599b (Merge branch
'js/default-branch-name-tests-final-stretch', 2021-01-25), some of those
spots caused textual conflicts, but some (for tests that were far enough
away from other changed code) were just semantic. The merge resolution
fixed up most spots, but missed this one.
Even though this did impact actual code, it turned out not to fail the
tests. Running 'cd "$master_repo"' ended up staying in the same
directory, running the test in the main trash repo instead of the
sub-repo. But because the point of the test is checking behavior when
there are no packfiles, it worked in either repo (since both are empty
at this point in the script).
Reported-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The die() routine adds a "fatal: " prefix, there is no reason to add
another one. Fixes code added in e65123a71d (builtin rebase: support
`git rebase <upstream> <switch-to>`, 2018-09-04).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Set packet_trace_identity() for ls-remote. This replaces the generic
"git" identity in GIT_TRACE_PACKET=<file> traces to "ls-remote", e.g.:
[...] packet: upload-pack> version 2
[...] packet: upload-pack> agent=git/2.32.0-dev
[...] packet: ls-remote< version 2
[...] packet: ls-remote< agent=git/2.32.0-dev
Where in an "git ls-remote file://<path>" dialog ">" is the sender (or
"to the server") and "<" is the recipient (or "received by the
client").
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
On macOS, we use launchctl to manage the background maintenance
schedule. This uses a set of .plist files to describe the schedule, but
these files are also registered with 'launchctl bootstrap'. If multiple
'git maintenance start' commands run concurrently, then they can collide
replacing these schedule files and registering them with launchctl.
To avoid extra launchctl commands, do a check for the .plist files on
disk and check if they are registered using 'launchctl list <name>'.
This command will return with exit code 0 if it exists, or exit code 113
if it does not.
We can test this behavior using the GIT_TEST_MAINT_SCHEDULER environment
variable.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When two `git maintenance` processes try to write the `.plist` file, we
need to help them with serializing their efforts.
The 150ms time-out value was determined from thin air.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
On Windows, $(pwd) returns a drive-letter style path C:/foo, while $PWD
contains a POSIX style /c/foo path. When we want to interpolate the
current directory in the PATH variable, we must not use the C:/foo style,
because the meaning of the colon is ambiguous. Use the POSIX style.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The variable D is never defined in test t5582, more severely the test
fails if D is defined by something outside the test suite, so remove
this spurious line.
Signed-off-by: Mickey Endito <mickey.endito.2323@protonmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The rules creating the $(LIB_FILE) and $(XDIFF_LIB) archives used to
be:
$(QUIET_AR)$(RM) $@ && $(AR) $(ARFLAGS) $@ $^
until commit 7b76d6bf22 (Makefile: add and use the ".DELETE_ON_ERROR"
flag, 2021-06-29) removed the '$(RM) $@' part, claiming that "we can
rely on the "c" (create) being present in ARFLAGS", and (I presume)
assuming that it means that the named archive is created from scratch.
Unfortunately, that's not what the 'c' flag does, it merely "Suppress
the diagnostic message that is written to standard error by default
when the archive is created" [1]. Consequently, all object files that
are already present in an existing archive and are not replaced will
remain there. This leads to linker errors in back-to-back builds of
different revisions without a 'make clean' between them if source
files going into these archives are renamed in between:
# The last commit renaming files that go into 'libgit.a':
# bc62692757 (hash-lookup: rename from sha1-lookup, 2020-12-31)
# sha1-lookup.c => hash-lookup.c | 14 +++++++-------
# sha1-lookup.h => hash-lookup.h | 12 ++++++------
$ git checkout bc62692757^
HEAD is now at 7a7d992d0d sha1-lookup: rename `sha1_pos()` as `hash_pos()`
$ make
[...]
$ git checkout 7b76d6bf22
HEAD is now at 7b76d6bf22 Makefile: add and use the ".DELETE_ON_ERROR" flag
$ make
[...]
AR libgit.a
LINK git
/usr/bin/ld: libgit.a(hash-lookup.o): in function `bsearch_hash':
/home/szeder/src/git/hash-lookup.c:105: multiple definition of `bsearch_hash'; libgit.a(sha1-lookup.o):/home/szeder/src/git/sha1-lookup.c:105: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:2213: git] Error 1
Restore the original make rules to first remove $(LIB_FILE) and
$(XDIFF_LIB) and then create them from scratch to avoid these build
errors.
[1] Quoting POSIX at:
https://pubs.opengroup.org/onlinepubs/9699919799/utilities/ar.html
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The cleanup of old compat wrappers in bash completion caused a
regression on tcsh completion that still uses them.
Let's update the tcsh call site as well for addressing it.
Fixes: 441ecdab37 ("completion: bash: remove old compat wrappers")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
__gitcomp automatically adds a suffix, but __gitcomp_nl and others
don't, we need to specify a space by default.
Can be tested with:
git config branch.autoSetupMe<tab>
This fix only works for versions of bash greater than 4.0, before that
"local sfx" creates an empty string, therefore the unset expansion
doesn't work. The same happens in zsh.
Therefore we don't add the test for that for now.
The correct fix for all shells requires semantic changes in __gitcomp,
but that can be done later.
Cc: SZEDER Gábor <szeder.dev@gmail.com>
Tested-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Otherwise options of commands like 'for-each-ref' are not completed.
Tested-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We need to ignore options that don't start with -- as well.
Depending on the value of COMP_WORDBREAKS the last word could be
duplicated otherwise.
Can be tested with:
git merge -X diff-algorithm=<tab>
Tested-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Otherwise we are completely ignoring the --cur argument.
The issue can be tested with:
git clone --config=branch.<tab>
Reviewed-by: SZEDER Gábor <szeder.dev@gmail.com>
Tested-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Codepath to access recently added oidtree data structure had
to make unaligned accesses to oids, which has been corrected.
* rs/oidtree-alignment-fix:
oidtree: avoid unaligned access to crit-bit tree
Also fixed some typos reported by "git-po-helper".
Signed-off-by: Peter Krefting <peter@softwolves.pp.se>
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
The flexible array member "k" of struct cb_node is used to store the key
of the crit-bit tree node. It offers no alignment guarantees -- in fact
the current struct layout puts it one byte after a 4-byte aligned
address, i.e. guaranteed to be misaligned.
oidtree uses a struct object_id as cb_node key. Since cf0983213c (hash:
add an algo member to struct object_id, 2021-04-26) it requires 4-byte
alignment. The mismatch is reported by UndefinedBehaviorSanitizer at
runtime like this:
hash.h:277:2: runtime error: member access within misaligned address 0x00015000802d for type 'struct object_id', which requires 4 byte alignment
0x00015000802d: note: pointer points here
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
^
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior hash.h:277:2 in
We can fix that by:
1. eliminating the alignment requirement of struct object_id,
2. providing the alignment in struct cb_node, or
3. avoiding the issue by only using memcpy to access "k".
Currently we only store one of two values in "algo" in struct object_id.
We could use a uint8_t for that instead and widen it only once we add
support for our twohundredth algorithm or so. That would not only avoid
alignment issues, but also reduce the memory requirements for each
instance of struct object_id by ca. 9%.
Supporting keys with alignment requirements might be useful to spread
the use of crit-bit trees. It can be achieved by using a wider type for
"k" (e.g. uintmax_t), using different types for the members "byte" and
"otherbits" (e.g. uint16_t or uint32_t for each), or by avoiding the use
of flexible arrays like khash.h does.
This patch implements the third option, though, because it has the least
potential for causing side-effects and we're close to the next release.
If one of the other options is implemented later as well to get their
additional benefits we can get rid of the extra copies introduced here.
Reported-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Translate 48 new messages (5230t0f0u) for git 2.33.0, and also fixed
typos found by "git-po-helper".
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Signed-off-by: Fangyi Zhou <me@fangyi.io>
Format README.md using GFM (GitHub Flavored Markdown) syntax.
- In order to use more than 3 level headings, use ATX style headings
instead of setext style headings.
- In order to add highlights for code blocks, use fenced code blocks
instead of indented code blocks.
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
