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"git pull" had various corner cases that were not well thought out
around its --rebase backend, e.g. "git pull --ff-only" did not stop
but went ahead and rebased when the history on other side is not a
descendant of our history. The series tries to fix them up.
* en/pull-conflicting-options:
pull: fix handling of multiple heads
pull: update docs & code for option compatibility with rebasing
pull: abort by default when fast-forwarding is not possible
pull: make --rebase and --no-rebase override pull.ff=only
pull: since --ff-only overrides, handle it first
pull: abort if --ff-only is given and fast-forwarding is impossible
t7601: add tests of interactions with multiple merge heads and config
t7601: test interaction of merge/rebase/fast-forward flags and options
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Bugfix for common ancestor negotiation recently introduced in "git
push" codepath.
* jt/push-negotiation-fixes:
fetch: die on invalid --negotiation-tip hash
send-pack: fix push nego. when remote has refs
send-pack: fix push.negotiate with remote helper
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Input validation of "git pack-objects --stdin-packs" has been
corrected.
* ab/pack-stdin-packs-fix:
pack-objects: fix segfault in --stdin-packs option
pack-objects tests: cover blindspots in stdin handling
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Typofixes.
* en/typofixes:
merge-ort: fix completely wrong comment
trace2.h: fix trivial comment typo
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The unicode character width table (used for output alignment) has
been updated.
* cb/unicode-14:
unicode: update the width tables to Unicode 14
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Doc update.
* po/git-config-doc-mentions-help-c:
doc: config, tell readers of `git help --config`
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Header comment fix.
* kz/revindex-comment-fix:
pack-revindex.h: correct the time complexity descriptions
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Leakfix.
* cb/plug-leaks-in-alloca-emu-users:
t0000: avoid masking git exit value through pipes
tree-diff: fix leak when not HAVE_ALLOCA_H
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Doc update.
* ma/doc-git-version:
documentation: add documentation for 'git version'
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Code clean-up.
* rs/drop-core-compression-vars:
compression: drop write-only core_compression_* variables
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Test update.
* jk/t5562-racefix:
t5562: use alarm() to interrupt timed child-wait
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Code clean-up.
* rs/setup-use-xopen-and-xdup:
setup: use xopen and xdup in sanitize_stdfds
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Leakfix.
* jc/prefix-filename-allocates:
hash-object: prefix_filename() returns allocated memory these days
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Build simplification.
* ab/no-more-check-bindir:
Makefile: remove the check_bindir script
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Docfix.
* bs/doc-bugreport-outdir:
Documentation: fix default directory of git bugreport -o
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CI update.
* cb/ci-build-pedantic:
ci: run a pedantic build as part of the GitHub workflow
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Code cleanup.
* rs/archive-use-object-id:
archive: convert queue_directory to struct object_id
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Code cleanup.
* rs/show-branch-simplify:
show-branch: simplify rev_is_head()
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Build fix.
* cb/remote-ndebug-fix:
remote: avoid -Wunused-but-set-variable in gcc with -DNDEBUG
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Leakfix.
* ab/mailmap-leakfix:
mailmap.c: fix a memory leak in free_mailap_{info,entry}()
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A pathname in an advice message has been made cut-and-paste ready.
* ab/gc-log-rephrase:
gc: remove trailing dot from "gc.log" line
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Leakfix.
* ba/object-info:
protocol-caps.c: fix memory leak in send_info()
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Typofix.
* es/walken-tutorial-fix:
doc: fix syntax error and the format of printf
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Error diagnostics improvement.
* rs/xopen-reports-open-failures:
use xopen() to handle fatal open(2) failures
xopen: explicitly report creation failures
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Test fix.
* dd/t6300-wo-gpg-fix:
t6300: check for cat-file exit status code
t6300: don't run cat-file on non-existent object
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Leak fix.
* mh/credential-leakfix:
credential: fix leak in credential_apply_config()
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Test fix.
* jk/t5323-no-pack-test-fix:
t5323: drop mentions of "master"
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"git maintenance" scheduler fix for macOS.
* js/maintenance-launchctl-fix:
maintenance: skip bootout/bootstrap when plist is registered
maintenance: create `launchctl` configuration using a lock file
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Error message fix.
* ab/rebase-fatal-fatal-fix:
rebase: emit one "fatal" in "fatal: fatal: <error>"
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Debugging aid fix.
* ab/ls-remote-packet-trace:
ls-remote: set packet_trace_identity(<name>)
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Test fix.
* ga/send-email-sendmail-cmd:
t9001: PATH must not use Windows-style paths
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Test fix.
* me/t5582-cleanup:
t5582: remove spurious 'cd "$D"' line
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Build fix.
* sg/make-fix-ar-invocation:
Makefile: remove archives before manipulating them with 'ar'
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Update to the command line completion (in contrib/) for tcsh.
* ti/tcsh-completion-regression-fix:
completion: tcsh: Fix regression by drop of wrapper functions
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Command line completion updates.
* fc/completion-updates:
completion: bash: add correct suffix in variables
completion: bash: fix for multiple dash commands
completion: bash: fix for suboptions with value
completion: bash: fix prefix detection in branch.*
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Update FreeBSD CI job
* cb/ci-freebsd-update:
ci: update freebsd 12 cirrus job
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Code clean-up.
* cb/builtin-merge-format-string-fix:
builtin/merge: avoid -Wformat-extra-args from ancient Xcode
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Debugging aid.
* js/log-protocol-version:
connect, protocol: log negotiated protocol version
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Documentation updates.
* en/merge-strategy-docs:
Update error message and code comment
merge-strategies.txt: add coverage of the `ort` merge strategy
git-rebase.txt: correct out-of-date and misleading text about renames
merge-strategies.txt: fix simple capitalization error
merge-strategies.txt: avoid giving special preference to patience algorithm
merge-strategies.txt: do not imply using copy detection is desired
merge-strategies.txt: update wording for the resolve strategy
Documentation: edit awkward references to `git merge-recursive`
directory-rename-detection.txt: small updates due to merge-ort optimizations
git-rebase.txt: correct antiquated claims about --rebase-merges
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Doc update.
* ab/bundle-doc:
bundle doc: replace "basis" with "prerequsite(s)"
bundle doc: elaborate on rev<->ref restriction
bundle doc: elaborate on object prerequisites
bundle doc: rewrite the "DESCRIPTION" section
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Not sure what happened, but the comment is describing code elsewhere in
the file. Fix the comment to actually discuss the code that follows.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Released[0] after a long beta period and including several additional
zero/double width characters.
[0] https://home.unicode.org/announcing-the-unicode-standard-version-14-0/
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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9af0b8dbe2 (t0000-basic: more commit-tree tests., 2006-04-26) adds
tests for commit-tree that mask the return exit from git as described
in a378fee5b07 (Documentation: add shell guidelines, 2018-10-05).
Fix the tests, to avoid pipes by using a temporary file instead.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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b8ba412bf7 (tree-diff: avoid alloca for large allocations, 2016-06-07)
adds a way to route some bigger allocations out of the stack and free
them through the addition of two conveniently named macros, but leaves
the calls to free the xalloca part, which could be also in the heap,
if the system doesn't HAVE_ALLOCA_H (ex: macOS and other BSD).
Add the missing free call, xalloca_free(), which is a noop if we
allocated memory in the stack frame, but a real free() if we
allocated in the heap instead, and while at it, change the expression
to match in both macros for ease of readability.
This avoids a leak reported by LSAN while running t0000 but that
wouldn't fail the test (which is fixed in the next patch):
SUMMARY: LeakSanitizer: 1034 byte(s) leaked in 15 allocation(s).
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Time complexities for pack_pos_to_midx and midx_to_pack_pos are swapped,
correct it.
Signed-off-by: Kyle Zhao <kylezhao@tencent.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While 'git version' is probably the least complex git command,
it is a non-experimental user-facing builtin command. As such
it should have a help page.
Both `git help` and `git version` can be called as options
(`--help`/`--version`) that internally get converted to the
corresponding command. Add a small paragraph to
Documentation/git.txt describing how these two options
interact with each other and link to this help page for the
sub-options that `--version` can take. Well, currently there
is only one sub-option, but that could potentially increase
in future versions of Git.
Signed-off-by: Matthias Aßhauer <mha1993@live.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `git help` command gained the ability to list config variables in
3ac68a93fd (help: add --config to list all available config, 2018-05-26)
but failed to tell readers of the config documenation itself.
Provide that cross reference.
Signed-off-by: Philip Oakley <philipoakley@iee.email>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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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>
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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>
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Junio C Hamano
Elijah Newren
Carlo Marcelo Arenas Belón
Kyle Zhao
Matthias Aßhauer
Philip Oakley
René Scharfe
Jeff King