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When updating references via git-fetch(1), then by default we report to
the user which references have been changed. This output is formatted in
a nice table such that the different columns are aligned. Because the
first column contains abbreviated object IDs we thus need to iterate
over all refs which have changed and compute the minimum length for
their respective abbreviated hashes. While this effort makes sense in
most cases, it is wasteful when the user passes the `--quiet` flag: we
don't print the summary, but still compute the length.
Skip computing the summary width when the user asked for us to be quiet.
This gives us a speedup of nearly 10% when doing a mirror-fetch in a
repository with thousands of references being updated:
Benchmark 1: git fetch --quiet +refs/*:refs/* (HEAD~)
Time (mean ± σ): 96.078 s ± 0.508 s [User: 91.378 s, System: 10.870 s]
Range (min … max): 95.449 s … 96.760 s 5 runs
Benchmark 2: git fetch --quiet +refs/*:refs/* (HEAD)
Time (mean ± σ): 88.214 s ± 0.192 s [User: 83.274 s, System: 10.978 s]
Range (min … max): 87.998 s … 88.446 s 5 runs
Summary
'git fetch --quiet +refs/*:refs/* (HEAD)' ran
1.09 ± 0.01 times faster than 'git fetch --quiet +refs/*:refs/* (HEAD~)'
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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During packfile negotiation we iterate over all refs announced by the
remote side to check whether their IDs refer to commits already known to
us. If a commit is known to us already, then its date is a potential
cutoff point for commits we have in common with the remote side.
There is potentially a lot of commits announced by the remote depending
on how many refs there are in the remote repository, and for every one
of them we need to search for it in our object database and, if found,
parse the corresponding object to find out whether it is a candidate for
the cutoff date. This can be sped up by trying to look up commits via
the commit-graph first, which is a lot more efficient.
Benchmarks in a repository with about 2,1 million refs and an up-to-date
commit-graph show an almost 20% speedup when mirror-fetching:
Benchmark 1: git fetch +refs/*:refs/* (v2.35.0)
Time (mean ± σ): 115.587 s ± 2.009 s [User: 109.874 s, System: 11.305 s]
Range (min … max): 113.584 s … 118.820 s 5 runs
Benchmark 2: git fetch +refs/*:refs/* (HEAD)
Time (mean ± σ): 96.859 s ± 0.624 s [User: 91.948 s, System: 10.980 s]
Range (min … max): 96.180 s … 97.875 s 5 runs
Summary
'git fetch +refs/*:refs/* (HEAD)' ran
1.19 ± 0.02 times faster than 'git fetch +refs/*:refs/* (v2.35.0)'
Signed-off-by: Patrick Steinhardt <ps@pks.im>
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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Update the logic to compute alignment requirement for our mem-pool.
* jc/mem-pool-alignment:
mem-pool: don't assume uintmax_t is aligned enough for all types
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Mark in various places in the code that the sparse index and the
split index features are mutually incompatible.
* js/sparse-vs-split-index:
split-index: it really is incompatible with the sparse index
t1091: disable split index
sparse-index: sparse index is disallowed when split index is active
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Cloning from a repository that does not yet have any branches or
tags but has other refs resulted in a "remote transport reported
error", which has been corrected.
* jt/clone-not-quite-empty:
clone: support unusual remote ref configurations
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"git sparse-checkout init" failed to write into $GIT_DIR/info
directory when the repository was created without one, which has
been corrected to auto-create it.
* jt/sparse-checkout-leading-dir-fix:
sparse-checkout: create leading directory
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Leakfix.
* en/plug-leaks-in-merge:
merge: fix memory leaks in cmd_merge()
merge-ort: fix memory leak in merge_ort_internal()
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More "config-based hooks".
* ab/config-based-hooks-2:
run-command: remove old run_hook_{le,ve}() hook API
receive-pack: convert push-to-checkout hook to hook.h
read-cache: convert post-index-change to use hook.h
commit: convert {pre-commit,prepare-commit-msg} hook to hook.h
git-p4: use 'git hook' to run hooks
send-email: use 'git hook run' for 'sendemail-validate'
git hook run: add an --ignore-missing flag
hooks: convert worktree 'post-checkout' hook to hook library
hooks: convert non-worktree 'post-checkout' hook to hook library
merge: convert post-merge to use hook.h
am: convert applypatch-msg to use hook.h
rebase: convert pre-rebase to use hook.h
hook API: add a run_hooks_l() wrapper
am: convert {pre,post}-applypatch to use hook.h
gc: use hook library for pre-auto-gc hook
hook API: add a run_hooks() wrapper
hook: add 'run' subcommand
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The code path that verifies signatures made with ssh were made to
work better on a system with CRLF line endings.
* fs/ssh-signing-crlf:
gpg-interface: trim CR from ssh-keygen
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"git name-rev --stdin" does not behave like usual "--stdin" at
all. Start the process of renaming it to "--annotate-stdin".
* jc/name-rev-stdin:
name-rev.c: use strbuf_getline instead of limited size buffer
name-rev: deprecate --stdin in favor of --annotate-stdin
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"git fetch --negotiate-only" is an internal command used by "git
push" to figure out which part of our history is missing from the
other side. It should never recurse into submodules even when
fetch.recursesubmodules configuration variable is set, nor it
should trigger "gc". The code has been tightened up to ensure it
only does common ancestry discovery and nothing else.
* gc/fetch-negotiate-only-early-return:
fetch: help translators by reusing the same message template
fetch --negotiate-only: do not update submodules
fetch: skip tasks related to fetching objects
fetch: use goto cleanup in cmd_fetch()
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"git add -p" rewritten in C regressed hunk splitting in some cases,
which has been corrected.
* pw/add-p-hunk-split-fix:
builtin add -p: fix hunk splitting
t3701: clean up hunk splitting tests
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We explain that revs come first before the pathspec among command
line arguments, but did not spell out that dashed options come
before other args, which has been corrected.
* tl/doc-cli-options-first:
git-cli.txt: clarify "options first and then args"
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Doc update.
* po/readme-mention-contributor-hints:
README.md: add CodingGuidelines and a link for Translators
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The conditional inclusion mechanism of configuration files using
"[includeIf <condition>]" learns to base its decision on the
URL of the remote repository the repository interacts with.
* jt/conditional-config-on-remote-url:
config: include file if remote URL matches a glob
config: make git_config_include() static
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The merge-ort misbehaved when merge.renameLimit configuration is
set too low and failed to find all renames.
* en/merge-ort-restart-optim-fix:
merge-ort: avoid assuming all renames detected
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Avoid tests that are run under GIT_TRACE2 set from failing
unnecessarily.
* js/test-unset-trace2-parents:
test-lib: unset trace2 parent envvars
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git update-index --refresh" has been taught to deal better with
racy timestamps (just like "git status" already does).
* ms/update-index-racy:
update-index: refresh should rewrite index in case of racy timestamps
t7508: add tests capturing racy timestamp handling
t7508: fix bogus mtime verification
test-lib: introduce API for verifying file mtime
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Use the parse-options API in "git reflog" command.
* jc/reflog-parse-options:
builtin/reflog.c: use parse-options api for expire, delete subcommands
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Assorted updates to "git cat-file", especially "-h".
* ab/cat-file:
cat-file: s/_/-/ in typo'd usage_msg_optf() message
cat-file: don't whitespace-pad "(...)" in SYNOPSIS and usage output
cat-file: use GET_OID_ONLY_TO_DIE in --(textconv|filters)
object-name.c: don't have GET_OID_ONLY_TO_DIE imply *_QUIETLY
cat-file: correct and improve usage information
cat-file: fix remaining usage bugs
cat-file: make --batch-all-objects a CMDMODE
cat-file: move "usage" variable to cmd_cat_file()
cat-file docs: fix SYNOPSIS and "-h" output
parse-options API: add a usage_msg_optf()
cat-file tests: test messaging on bad objects/paths
cat-file tests: test bad usage
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Fix a hand-rolled alloca() imitation that may have violated
alignment requirement of data being sorted in compatibility
implementation of qsort_s() and stable qsort().
* jc/qsort-s-alignment-fix:
stable-qsort: avoid using potentially unaligned access
compat/qsort_s.c: avoid using potentially unaligned access
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"git apply" (ab)used the util pointer of the string-list to keep
track of how each symbolic link needs to be handled, which has been
simplified by using strset.
* rs/apply-symlinks-use-strset:
apply: use strsets to track symlinks
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Code clean-up.
* rs/grep-expr-cleanup:
grep: use grep_and_expr() in compile_pattern_and()
grep: extract grep_binexp() from grep_or_expr()
grep: use grep_not_expr() in compile_pattern_not()
grep: use grep_or_expr() in compile_pattern_or()
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* jh/p4-spawning-external-commands-cleanup:
git-p4: don't print shell commands as python lists
git-p4: pass command arguments as lists instead of using shell
git-p4: don't select shell mode using the type of the command argument
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* jh/p4-fix-use-of-process-error-exception:
git-p4: fix instantiation of CalledProcessError
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Code clean-up.
* jc/find-header:
receive-pack.c: consolidate find header logic
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"git pull --rebase" ignored the rebase.autostash configuration
variable when the remote history is a descendant of our history,
which has been corrected.
* pb/pull-rebase-autostash-fix:
pull --rebase: honor rebase.autostash when fast-forwarding
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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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Fix a regression in 2.35 that roke the use of "rebase" and "stash"
in a secondary worktree.
* en/keep-cwd:
sequencer, stash: fix running from worktree subdir
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Fix a regression in 2.35 that roke the use of "rebase" and "stash"
in a secondary worktree.
* en/keep-cwd:
sequencer, stash: fix running from worktree subdir
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The tree is not open for new development yet, but let's mark the
beginning of the new cycle before we start merging down regression
fix topics.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In commits bc3ae46b42 ("rebase: do not attempt to remove
startup_info->original_cwd", 2021-12-09) and 0fce211ccc ("stash: do not
attempt to remove startup_info->original_cwd", 2021-12-09), we wanted to
allow the subprocess to know which directory the parent process was
running from, so that the subprocess could protect it. However...
When run from a non-main worktree, setup_git_directory() will note
that the discovered git directory
(/PATH/TO/.git/worktree/non-main-worktree) does not match
DEFAULT_GIT_DIR_ENVIRONMENT (see setup_discovered_git_dir()), and
decide to set GIT_DIR in the environment. This matters because...
Whenever git is run with the GIT_DIR environment variable set, and
GIT_WORK_TREE not set, it presumes that '.' is the working tree. So...
This combination results in the subcommand being very confused about
the working tree. Fix it by also setting the GIT_WORK_TREE environment
variable along with setting cmd.dir.
A possibly more involved fix we could consider for later would be to
make setup.c set GIT_WORK_TREE whenever (a) it discovers both the git
directory and the working tree and (b) it decides to set GIT_DIR in the
environment. I did not attempt that here as such would be too big of a
change for a 2.35.1 release.
Test-case-by: Glen Choo <chooglen@google.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When cloning a branchless and tagless but not refless remote using
protocol v0 or v1, Git calls transport_fetch_refs() with an empty ref
list. This makes the clone fail with the message "remote transport
reported error".
Git should have refrained from calling transport_fetch_refs(), just like
it does in the case that the remote is refless. Therefore, teach Git to
do this.
In protocol v2, this does not happen because the client passes
ref-prefix arguments that filter out non-branches and non-tags in the
ref advertisement, making the remote appear empty.
Note that this bug concerns logic in builtin/clone.c and only affects
cloning, not fetching.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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mem_pool_alloc uses sizeof(uintmax_t) as a proxy for what should be
_Alignof(max_align_t) in C11. On most architectures this is sufficient
(though on m68k it is in fact overly strict, since the de-facto ABI,
which differs from the specified System V ABI, has the maximum alignment
of all types as 2 bytes), but on CHERI, and thus Arm's Morello
prototype, it is insufficient for any type that stores a pointer, which
must be aligned to 128 bits (on 64-bit architectures extended with
CHERI), whilst uintmax_t is a 64-bit integer.
Fix this by introducing our own approximation for max_align_t and a
means to compute _Alignof it without relying on C11. Currently this
union only contains uintmax_t and void *, but more types can be added as
needed.
Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com>
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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We added an unrelated sanity checking that leads to a BUG() while
plugging a leak, which triggered in a repository with symrefs in
the local branch namespace that point at a ref outside. Partially
revert the change to avoid triggering the BUG().
* ab/checkout-branch-info-leakfix:
checkout: avoid BUG() when hitting a broken repository
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l10n-2.35.0-rnd2
* tag 'l10n-2.35.0-rnd2' of git://github.com/git-l10n/git-po:
l10n: Update Catalan translation
l10n: zh_TW: v2.35.0 round 2 (0 untranslated)
l10n: Update Catalan translation
l10n: de.po: Update German translation
l10n: de.po: Fix translation for "'%s' is aliased to '%s'"
l10n: po-id for 2.35 (round 2)
l10n: Update Catalan translation
l10n: vi(5195t): Update for v2.35.0 round 2
l10n: batch update to fix typo in branch.c
l10n: git.pot: v2.35.0 round 2 (1 new, 1 removed)
l10n: bg.po: Updated Bulgarian translation (5195t)
l10n: zh_CN: v2.35.0 round 1
l10n: fr: v2.35.0 round 1
l10n: zh_TW: v2.35.0 round 1 (1 fuzzy)
l10n: po-id for 2.35 (round 1)
l10n: sv.po: Update Swedish translation (5196t0f0u)
l10n: sv.po: Fix typo
l10n: tr: v2.35.0 round 1
l10n: git.pot: v2.35.0 round 1 (126 new, 142 removed)
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... at least for now. So let's error out if we are even trying to
initialize the split index when the index is sparse, or when trying to
write the split index extension for a sparse index.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 61feddcdf28 (tests: disable GIT_TEST_SPLIT_INDEX for sparse index
tests, 2021-08-26), it was already called out that the split index
feature is incompatible with the sparse index feature, and its commit
message wondered aloud whether more checks would be required to ensure
that the split index and sparse index features aren't enabled at the
same time.
We are about to introduce such additional checks, and indeed, t1091
would utterly fail with them. Therefore, let's preemptively disable the
split index for the entirety of t1091.
This partially reverts above-mentioned patch because it covered only one
test case whereas we want to cover the entire test script.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 6e773527b6b (sparse-index: convert from full to sparse, 2021-03-30),
we introduced initial support for a sparse index, and were careful to
avoid converting to a sparse index in the presence of a split index.
However, when we _just_ read a freshly-initialized index, it might not
contain a split index even if _writing_ it will add one by virtue of
being asked for via the `GIT_TEST_SPLIT_INDEX` variable.
We did not notice any problems with checking _only_ for `split_index`
(and not `GIT_TEST_SPLIT_INDEX`) right until both
`vd/sparse-sparsity-fix-on-read` _and_ `vd/sparse-reset` were merged.
Those two topics' interplay triggers a bug in conjunction with running
t1091.15 when `GIT_TEST_SPLIT_INDEX=true` in the following way:
`vd/sparse-sparsity-fix-on-read` ensures that the index is made sparse
right after reading, and `vd/sparse-reset` ensures that the index is
made non-sparse again unless running in the `--soft` mode. Since the
split index feature is incompatible with the sparse index feature, we
see a symptom like this:
fatal: position for replacement 4 exceeds base index size 4
Let's fix this by avoiding the conversion to a sparse index when
`GIT_TEST_SPLIT_INDEX=true`.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Jordi Mas <jmas@softcatala.org>
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* 'l10n/zh_TW/220113' of github.com:l10n-tw/git-po:
l10n: zh_TW: v2.35.0 round 2 (0 untranslated)
l10n: zh_TW: v2.35.0 round 1 (1 fuzzy)
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When 9081a421 (checkout: fix "branch info" memory leaks, 2021-11-16)
cleaned up existing memory leaks, we added an unrelated sanity check
to ensure that a local branch is truly local and not a symref to
elsewhere that dies with BUG() otherwise. This was misguided in two
ways. First of all, such a tightening did not belong to a leak-fix
patch. And the condition it detected was *not* a bug in our program
but a problem in user data, where warning() or die() would have been
more appropriate.
As the condition is not fatal (the result of computing the local
branch name in the code that is involved in the faulty check is only
used as a textual label for the commit), let's revert the code to
the original state, i.e. strip "refs/heads/" to compute the local
branch name if possible, and otherwise leave it NULL. The consumer
of the information in merge_working_tree() is prepared to see NULL
in there and act accordingly.
cf. https://bugzilla.redhat.com/show_bug.cgi?id=2042920
Reported-by: Petr Šplíchal <psplicha@redhat.com>
Reported-by: Todd Zullinger <tmz@pobox.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There were two commit_lists created in cmd_merge() that were only
conditionally free()'d. Add a quick conditional call to
free_commit_list() for each of them at the end of the function.
Testing this commit against t6404 under valgrind shows that this patch
fixes the following two leaks:
16 bytes in 1 blocks are definitely lost in loss record 16 of 126
at 0x484086F: malloc (vg_replace_malloc.c:380)
by 0x69FFEB: do_xmalloc (wrapper.c:41)
by 0x6A0073: xmalloc (wrapper.c:62)
by 0x52A72D: commit_list_insert (commit.c:556)
by 0x47FC93: reduce_parents (merge.c:1114)
by 0x4801EE: collect_parents (merge.c:1214)
by 0x480B56: cmd_merge (merge.c:1465)
by 0x40686E: run_builtin (git.c:464)
by 0x406C51: handle_builtin (git.c:716)
by 0x406E96: run_argv (git.c:783)
by 0x40730A: cmd_main (git.c:914)
by 0x4E7DFA: main (common-main.c:56)
8 (16 direct, 32 indirect) bytes in 1 blocks are definitely lost in \
loss record 61 of 126
at 0x484086F: malloc (vg_replace_malloc.c:380)
by 0x69FFEB: do_xmalloc (wrapper.c:41)
by 0x6A0073: xmalloc (wrapper.c:62)
by 0x52A72D: commit_list_insert (commit.c:556)
by 0x52A8F2: commit_list_insert_by_date (commit.c:620)
by 0x5270AC: get_merge_bases_many_0 (commit-reach.c:413)
by 0x52716C: repo_get_merge_bases (commit-reach.c:438)
by 0x480E5A: cmd_merge (merge.c:1520)
by 0x40686E: run_builtin (git.c:464)
by 0x406C51: handle_builtin (git.c:716)
by 0x406E96: run_argv (git.c:783)
by 0x40730A: cmd_main (git.c:914)
There are still 3 leaks in chdir_notify_register() after this, but
chdir_notify_register() has been brought up on the list before and folks
were not a fan of fixing those, so I'm not touching them.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The documentation for merge_incore_recursive(), modelled after
merge_recursive(), notes that
merge_bases will be consumed (emptied) so make a copy if you need it
However, in merge_ort_internal() (which merge_incore_recursive() calls),
it runs
merged_merge_bases = pop_commit(&merge_bases);
...
for (iter = merge_bases; iter; iter = iter->next) {
...
}
In other words, it only consumes the *first* entry of merge_bases, and
the rest it iterates through. If it iterated through all of them, the
caller could be responsible for free'ing the memory. If it consumed all
of them, the current documentation would be correct and the callers
would need to do nothing. The current middle ground makes it impossible
for callers to avoid memory leaks, since any attempt to use the
merge_bases it passes in would result in a use-after-free.
It turns out this part of the code was copied from merge-recursive.c,
which has had the same bug for 15.5 years. However, since we are trying
to keep merge-recursive.c stable as we sunset it, let's just fix the
leak in in merge_ort_internal() by having it actually consume all the
elements of the merge_bases commit_list.
Testing this commit against t6404 (the first testcase specifically
about recursive merges) under valgrind shows that this patch fixes
the following leak:
32 (16 direct, 16 indirect) bytes in 1 blocks are definitely lost \
in loss record 49 of 126
at 0x484086F: malloc (vg_replace_malloc.c:380)
by 0x69FFEB: do_xmalloc (wrapper.c:41)
by 0x6A0073: xmalloc (wrapper.c:62)
by 0x52A72D: commit_list_insert (commit.c:556)
by 0x47EC86: try_merge_strategy (merge.c:751)
by 0x48143B: cmd_merge (merge.c:1679)
by 0x40686E: run_builtin (git.c:464)
by 0x406C51: handle_builtin (git.c:716)
by 0x406E96: run_argv (git.c:783)
by 0x40730A: cmd_main (git.c:914)
by 0x4E7DFA: main (common-main.c:56)
Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Used 1 translation from zh_CN. Thanks to zh_CN translation team!
Signed-off-by: Yi-Jyun Pan <pan93412@gmail.com>
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