Commit Graph

9800 Commits

Author SHA1 Message Date
Ævar Arnfjörð Bjarmason
7f14609e29 run-command API users: use strvec_push(), not argv construction
Change a pattern of hardcoding an "argv" array size, populating it and
assigning to the "argv" member of "struct child_process" to instead
use "strvec_push()" to add data to the "args" member.

As noted in the preceding commit this moves us further towards being
able to remove the "argv" member in a subsequent commit

These callers could have used strvec_pushl(), but moving to
strvec_push() makes the diff easier to read, and keeps the arguments
aligned as before.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-25 22:15:07 -08:00
Ævar Arnfjörð Bjarmason
2b7098936c run-command API users: use strvec_pushl(), not argv construction
Change a pattern of hardcoding an "argv" array size, populating it and
assigning to the "argv" member of "struct child_process" to instead
use "strvec_pushl()" to add data to the "args" member.

This implements the same behavior as before in fewer lines of code,
and moves us further towards being able to remove the "argv" member in
a subsequent commit.

Since we've entirely removed the "argv" variable(s) we can be sure
that no potential logic errors of the type discussed in a preceding
commit are being introduced here, i.e. ones where the local "argv" was
being modified after the assignment to "struct child_process"'s
"argv".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-25 22:15:07 -08:00
Ævar Arnfjörð Bjarmason
c8a4cd55d9 upload-archive: use regular "struct child_process" pattern
This pattern added [1] in seems to have been intentional, but since
[2] and [3] we've wanted do initialization of what's now the "struct
strvec" "args" and "env_array" members. Let's not trample on that
initialization here.

1. 1bc01efed1 (upload-archive: use start_command instead of fork,
   2011-11-19)
2. c460c0ecdc (run-command: store an optional argv_array, 2014-05-15)
3. 9a583dc39e (run-command: add env_array, an optional argv_array for
   env, 2014-10-19)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-25 22:15:07 -08:00
Eric Sunshine
33c997a411 worktree: stop being overly intimate with run_command() internals
add_worktree() reuses a `child_process` for three run_command()
invocations, but to do so, it has overly-intimate knowledge of
run-command.c internals. In particular, it knows that it must reset
child_process::argv to NULL for each subsequent invocation[*] in order
for start_command() to latch the newly-populated child_process::args for
each invocation, even though this behavior is not a part of the
documented API. Beyond having overly-intimate knowledge of run-command.c
internals, the reuse of one `child_process` for three run_command()
invocations smells like an unnecessary micro-optimization. Therefore,
stop sharing one `child_process` and instead use a new one for each
run_command() call.

[*] If child_process::argv is not reset to NULL, then subsequent
run_command() invocations will instead incorrectly access a dangling
pointer to freed memory which had been allocated by child_process::args
on the previous run. This is due to the following code in
start_command():

    if (!cmd->argv)
        cmd->argv = cmd->args.v;

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-25 22:15:07 -08:00
Junio C Hamano
ad03180c5c Merge branch 'ev/pull-already-up-to-date-is-noop' into maint
"git pull" with any strategy when the other side is behind us
should succeed as it is a no-op, but doesn't.

* ev/pull-already-up-to-date-is-noop:
  pull: should be noop when already-up-to-date
2021-11-23 14:48:04 -08:00
Han-Wen Nienhuys
7b089120d9 refs: drop force_create argument of create_reflog API
There is only one caller, builtin/checkout.c, and it hardcodes
force_create=1.

This argument was introduced in abd0cd3a30 (refs: new public ref function:
safe_create_reflog, 2015-07-21), which promised to immediately use it in a
follow-on commit, but that never happened.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-22 11:01:25 -08:00
Junio C Hamano
0f2140f105 Merge branch 'ev/pull-already-up-to-date-is-noop'
"git pull" with any strategy when the other side is behind us
should succeed as it is a no-op, but doesn't.

* ev/pull-already-up-to-date-is-noop:
  pull: should be noop when already-up-to-date
2021-11-21 21:57:04 -08:00
Mugdha Pattnaik
0adc8ba6ae submodule: absorb git dir instead of dying on deinit
Currently, running 'git submodule deinit' on repos where the
submodule's '.git' is a directory, aborts with a message that is not
exactly user friendly.

Let's change this to instead warn the user that the .git/ directory
has been absorbed into the superproject.
The rest of the deinit function can operate as it already does with
new-style submodules.

In one test, we used to require "git submodule deinit" to fail even
with the "--force" option when the submodule's .git/ directory is not
absorbed. Adjust it to expect the operation to pass.

Suggested-by: Atharva Raykar <raykar.ath@gmail.com>
Signed-off-by: Mugdha Pattnaik <mugdhapattnaik@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-19 09:19:54 -08:00
Alex Henrie
71076d0edd pull: don't say that merge is "the default strategy"
Git no longer has a default strategy for reconciling divergent branches,
because there's no way for Git to know which strategy is appropriate in
any particular situation.

The initially proposed version in [*], that eventually became
031e2f7a (pull: abort by default when fast-forwarding is not
possible, 2021-07-22), dropped this phrase from the message, but
it was left in the final version by accident.

* https://lore.kernel.org/git/20210627000855.530985-1-alexhenrie24@gmail.com/

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-19 09:14:15 -08:00
Erwin Villejo
ea1954af77 pull: should be noop when already-up-to-date
The already-up-to-date pull bug was fixed for --ff-only but it did not
include the case where --ff or --ff-only are not specified. This updates
the --ff-only fix to include the case where --ff or --ff-only are not
specified in command line flags or config.

Signed-off-by: Erwin Villejo <erwin.villejo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-18 14:38:53 -08:00
Ævar Arnfjörð Bjarmason
9081a421a6 checkout: fix "branch info" memory leaks
The "checkout" command is one of the main sources of leaks in the test
suite, let's fix the common ones by not leaking from the "struct
branch_info".

Doing this is rather straightforward, albeit verbose, we need to
xstrdup() constant strings going into the struct, and free() the ones
we clobber as we go along.

This also means that we can delete previous partial leak fixes in this
area, i.e. the "path_to_free" accounting added by 96ec7b1e70 (Convert
resolve_ref+xstrdup to new resolve_refdup function, 2011-12-13).

There was some discussion about whether "we should retain the "const
char *" here and cast at free() time, or have it be a "char *". Since
this is not a public API with any sort of API boundary let's use
"char *", as is already being done for the "refname" member of the
same struct.

The tests to mark as passing were found with:

    rm .prove; GIT_SKIP_TESTS=t0027 prove -j8 --state=save t[0-9]*.sh :: --immediate
    # apply & compile this change
    prove -j8 --state=failed :: --immediate

I.e. the ones that were newly passing when the --state=failed command
was run. I left out "t3040-subprojects-basic.sh" and
"t4131-apply-fake-ancestor.sh" to to optimization-level related
differences similar to the ones noted in[1], except that these would
be something the current 'linux-leaks' job would run into.

1. https://lore.kernel.org/git/cover-v3-0.6-00000000000-20211022T175227Z-avarab@gmail.com/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-18 14:32:26 -08:00
Junio C Hamano
2c0fa66bc8 Merge branch 'ab/fsck-unexpected-type'
Regression fix.

* ab/fsck-unexpected-type:
  object-file: free(*contents) only in read_loose_object() caller
  object-file: fix SEGV on free() regression in v2.34.0-rc2
2021-11-12 15:29:25 -08:00
Ævar Arnfjörð Bjarmason
16235e3b14 object-file: free(*contents) only in read_loose_object() caller
In the preceding commit a free() of uninitialized memory regression in
96e41f58fe (fsck: report invalid object type-path combinations,
2021-10-01) was fixed, but we'd still have an issue with leaking
memory from fsck_loose(). Let's fix that issue too.

That issue was introduced in my 31deb28f5e (fsck: don't hard die on
invalid object types, 2021-10-01). It can be reproduced under
SANITIZE=leak with the test I added in 093fffdfbe (fsck tests: add
test for fsck-ing an unknown type, 2021-10-01):

    ./t1450-fsck.sh --run=84 -vixd

In some sense it's not a problem, we lost the same amount of memory in
terms of things malloc'd and not free'd. It just moved from the "still
reachable" to "definitely lost" column in valgrind(1) nomenclature[1],
since we'd have die()'d before.

But now that we don't hard die() anymore in the library let's properly
free() it. Doing so makes this code much easier to follow, since we'll
now have one function owning the freeing of the "contents" variable,
not two.

For context on that memory management pattern the read_loose_object()
function was added in f6371f9210 (sha1_file: add read_loose_object()
function, 2017-01-13) and subsequently used in c68b489e56 (fsck:
parse loose object paths directly, 2017-01-13). The pattern of it
being the task of both sides to free() the memory has been there in
this form since its inception.

1. https://valgrind.org/docs/manual/mc-manual.html#mc-manual.leaks

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-11 13:40:43 -08:00
Junio C Hamano
c1d16cedd4 Merge branch 'ds/no-usable-cron-on-macos'
"git maintenance run" learned to use system supplied scheduler
backend, but cron on macOS turns out to be unusable for this
purpose.

* ds/no-usable-cron-on-macos:
  maintenance: disable cron on macOS
2021-11-10 15:01:20 -08:00
Junio C Hamano
7c7cf62c48 Merge branch 'jc/fix-pull-ff-only-when-already-up-to-date'
"git pull --ff-only" and "git pull --rebase --ff-only" should make
it a no-op to attempt pulling from a remote that is behind us, but
instead the command errored out by saying it was impossible to
fast-forward, which may technically be true, but not a useful thing
to diagnose as an error.  This has been corrected.

* jc/fix-pull-ff-only-when-already-up-to-date:
  pull: --ff-only should make it a noop when already-up-to-date
2021-11-10 15:01:19 -08:00
Robin Jarry
d34182b9e3 receive-pack: ignore SIGPIPE while reporting status to client
Before running the post-receive hook, status info is reported back to
the client. If a remote client exits before or during the status report,
receive-pack is killed by SIGPIPE and post-receive is never executed.

The post-receive hook is often used to send email notifications (see
contrib/hooks/post-receive-email), update bug trackers, start automatic
builds, etc. Not executing it after an interrupted yet "successful" push
can lead to inconsistencies.

Ignore SIGPIPE before reporting status to the client to increase the
chances of post-receive running if pre-receive was successful. This does
not guarantee 100% consistency but it should resist early disconnection
by the client.

Signed-off-by: Robin Jarry <robin@jarry.cc>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-10 13:43:04 -08:00
Derrick Stolee
689a2aa719 maintenance: disable cron on macOS
In eba1ba9 (maintenance: `git maintenance run` learned
`--scheduler=<scheduler>`, 2021-09-04), we introduced the ability to
specify a scheduler explicitly. This led to some extra checks around
whether an alternative scheduler was available. This added the
functionality of removing background maintenance from schedulers other
than the one selected.

On macOS, cron is technically available, but running 'crontab' triggers
a UI prompt asking for special permissions. This is the major reason why
launchctl is used as the default scheduler. The is_crontab_available()
method triggers this UI prompt, causing user disruption.

Remove this disruption by using an #ifdef to prevent running crontab
this way on macOS. This has the unfortunate downside that if a user
manually selects cron via the '--scheduler' option, then adjusting the
scheduler later will not remove the schedule from cron. The
'--scheduler' option ignores the is_available checks, which is how we
can get into this situation.

Extract the new check_crontab_process() method to avoid making the
'child' variable unused on macOS. The method is marked MAYBE_UNUSED
because it has no callers on macOS.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-10 11:20:20 -08:00
Junio C Hamano
a876f0b95c Merge branch 'ar/fix-git-pull-no-verify'
"git pull --no-verify" did not affect the underlying "git merge".

* ar/fix-git-pull-no-verify:
  pull: honor --no-verify and do not call the commit-msg hook
2021-11-04 12:07:46 -07:00
Junio C Hamano
e2a33ef9e2 Merge branch 'jx/message-fixes'
Fixes to recently added messages.

* jx/message-fixes:
  i18n: fix typos found during l10n for git 2.34.0
2021-11-03 13:32:28 -07:00
Thomas Weißschuh
e06c9e1df2 var: add GIT_DEFAULT_BRANCH variable
Introduce the logical variable GIT_DEFAULT_BRANCH which represents the
the default branch name that will be used by "git init".

Currently this variable is equivalent to
    git config init.defaultbranch || 'master'

This however will break if at one point the default branch is changed as
indicated by `default_branch_name_advice` in `refs.c`.

By providing this command ahead of time users of git can make their
code forward-compatible.

Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-03 13:25:36 -07:00
Junio C Hamano
7afb458e91 Merge branch 'gc/use-repo-settings'
It is wrong to read some settings directly from the config
subsystem, as things like feature.experimental can affect their
default values.

* gc/use-repo-settings:
  gc: perform incremental repack when implictly enabled
  fsck: verify multi-pack-index when implictly enabled
  fsck: verify commit graph when implicitly enabled
2021-11-01 13:48:08 -07:00
Junio C Hamano
b82299ec6f Merge branch 'ab/ignore-replace-while-working-on-commit-graph'
Teach "git commit-graph" command not to allow using replace objects
at all, as we do not use the commit-graph at runtime when we see
object replacement.

* ab/ignore-replace-while-working-on-commit-graph:
  commit-graph: don't consider "replace" objects with "verify"
  commit-graph tests: fix another graph_git_two_modes() helper
  commit-graph tests: fix error-hiding graph_git_two_modes() helper
2021-11-01 13:48:08 -07:00
Jiang Xin
f733719316 i18n: fix typos found during l10n for git 2.34.0
Emir and Jean-Noël reported typos in some i18n messages when preparing
l10n for git 2.34.0.

* Fix unstable spelling of config variable "gpg.ssh.defaultKeyCommand"
  which was introduced in commit fd9e226776 (ssh signing: retrieve a
  default key from ssh-agent, 2021-09-10).

* Add missing space between "with" and "--python" which was introduced
  in commit bd0708c7eb (ref-filter: add %(raw) atom, 2021-07-26).

* Fix unmatched single quote in 'builtin/index-pack.c' which was
  introduced in commit 8737dab346 (index-pack: refactor renaming in
  final(), 2021-09-09)

[1] https://github.com/git-l10n/git-po/pull/567

Reported-by: Emir Sarı <bitigchi@me.com>
Reported-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-31 22:49:49 -07:00
Junio C Hamano
f54c172bb3 Merge branch 'ks/submodule-add-message-fix'
Message regression fix.

* ks/submodule-add-message-fix:
  submodule: drop unused sm_name parameter from append_fetch_remotes()
  submodule--helper: fix incorrect newlines in an error message
2021-10-29 15:43:14 -07:00
Junio C Hamano
192a3fa31d Merge branch 'ab/plug-random-leaks'
Leakfix.

* ab/plug-random-leaks:
  reflog: free() ref given to us by dwim_log()
  submodule--helper: fix small memory leaks
  clone: fix a memory leak of the "git_dir" variable
  grep: fix a "path_list" memory leak
  grep: use object_array_clear() in cmd_grep()
  grep: prefer "struct grep_opt" over its "void *" equivalent
2021-10-29 15:43:13 -07:00
Junio C Hamano
c3673a8eb2 Merge branch 'ab/ref-filter-leakfix'
"git for-each-ref" family of commands were leaking the ref_sorting
instances that hold sorting keys specified by the user; this has
been corrected.

* ab/ref-filter-leakfix:
  branch: use ref_sorting_release()
  ref-filter API user: add and use a ref_sorting_release()
  tag: use a "goto cleanup" pattern, leak less memory
2021-10-29 15:43:12 -07:00
Junio C Hamano
735907bde1 Merge branch 'jk/http-push-status-fix'
"git push" client talking to an HTTP server did not diagnose the
lack of the final status report from the other side correctly,
which has been corrected.

* jk/http-push-status-fix:
  transport-helper: recognize "expecting report" error from send-pack
  send-pack: complain about "expecting report" with --helper-status
2021-10-29 15:43:12 -07:00
Junio C Hamano
361cb52383 pull: --ff-only should make it a noop when already-up-to-date
Earlier, we made sure that "git pull --ff-only" (and "git -c
pull.ff=only pull") errors out when our current HEAD is not an
ancestor of the tip of the history we are merging, but the condition
to trigger the error was implemented incorrectly.

Imagine you forked from a remote branch, built your history on top
of it, and then attempted to pull from them again.  If they have not
made any update in the meantime, our current HEAD is obviously not
their ancestor, and this new error triggers.

Without the --ff-only option, we just report that there is no need
to pull; we did the same historically with --ff-only, too.

Make sure we do not fail with the recently added check to restore
the historical behaviour.

Reported-by: Kenneth Arnold <ka37@calvin.edu>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-29 00:15:39 -07:00
Taylor Blau
ee4a1d63d7 builtin/multi-pack-index.c: don't leak concatenated options
The `multi-pack-index` builtin dynamically allocates an array of
command-line option for each of its separate modes by calling
add_common_options() to concatante the common options with sub-command
specific ones.

Because this operation allocates a new array, we have to be careful to
remember to free it. We already do this in the repack and write
sub-commands, but verify and expire don't. Rectify this by calling
FREE_AND_NULL as the other modes do.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-28 15:32:14 -07:00
Taylor Blau
e6432e0f1f builtin/repack.c: avoid leaking child arguments
`git repack` invokes a handful of child processes: one to write the
actual pack, and optionally ones to repack promisor objects and update
the MIDX.

Most of these are freed automatically by calling `start_command()` (which
invokes it on error) and `finish_command()` which calls it
automatically.

But repack_promisor_objects() can initialize a child_process, populate
its array of arguments, and then return from the function before even
calling start_command().

Make sure that the prepared list of arguments is freed by calling
child_process_clear() ourselves to avoid leaking memory along this path.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-28 15:31:51 -07:00
Sergey Organov
a8a6e0682d stash: get rid of unused argument in stash_staged()
Unused 'ps' argument was a left-over from original copy-paste of
stash_patch(). Removed.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-28 14:17:14 -07:00
Jean-Noël Avila
b7bf32b0c5 doc: fix git credential synopsis
The subcommand of git credential is not optional.

Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-28 09:57:09 -07:00
Alex Riesen
47bfdfb3fd pull: honor --no-verify and do not call the commit-msg hook
The option was incorrectly auto-translated to "--no-verify-signatures",
which causes the unexpected effect of the hook being called.
And an even more unexpected effect of disabling verification of signatures.

The manual page describes the option to behave same as the similarly
named option of "git merge", which seems to be the original intention
of this option in the "pull" command.

Signed-off-by: Alexander Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-28 09:52:09 -07:00
Taylor Blau
9e39acc94a builtin/pack-objects.c: don't leak memory via arguments
When constructing arguments to pass to setup_revision(), pack-objects
only frees the memory used by that array after calling
get_object_list().

Ensure that we call strvec_clear() whether or not we use the arguments
array by cleaning up whenever we exit the function (and rewriting one
early return to jump to a label which frees the memory and then
returns).

We could avoid setting this array up altogether unless we are in the
if-else block that calls get_object_list(), but setting up the argument
array is intermingled with lots of other side-effects, e.g.:

    if (exclude_promisor_objects) {
      use_internal_rev_list = 1;
      fetch_if_missing = 0;
      strvec_push(&rp, "--exclude-promisor-objects");
    }

So it would be awkward to check exclude_promisor_objects twice: first to
set use_internal_rev_list and fetch_if_missing, and then again above
get_object_list() to push the relevant argument onto the array.

Instead, leave the array's construction alone and make sure to free it
unconditionally.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-27 16:26:37 -07:00
Victoria Dye
71471b2a7c reset: preserve skip-worktree bit in mixed reset
Change `update_index_from_diff` to set `skip-worktree` when applicable for
new index entries. When `git reset --mixed <tree-ish>` is run, entries in
the index with differences between the pre-reset HEAD and reset <tree-ish>
are identified and handled with `update_index_from_diff`. For each file, a
new cache entry in inserted into the index, created from the <tree-ish> side
of the reset (without changing the working tree). However, the newly-created
entry must have `skip-worktree` explicitly set in either of the following
scenarios:

1. the file is in the current index and has `skip-worktree` set
2. the file is not in the current index but is outside of a defined sparse
   checkout definition

Not setting the `skip-worktree` bit leads to likely-undesirable results for
a user. It causes `skip-worktree` settings to disappear on the
"diff"-containing files (but *only* the diff-containing files), leading to
those files now showing modifications in `git status`. For example, when
running `git reset --mixed` in a sparse checkout, some file entries outside
of sparse checkout could show up as deleted, despite the user never deleting
anything (and not wanting them on-disk anyway).

Additionally, add a test to `t7102` to ensure `skip-worktree` is preserved
in a basic `git reset --mixed` scenario and update a failure-documenting
test from 19a0acc (t1092: test interesting sparse-checkout scenarios,
2021-01-23) with new expected behavior.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-27 15:05:11 -07:00
Jeff King
6b615dbece submodule: drop unused sm_name parameter from append_fetch_remotes()
Commit c21fb4676f (submodule--helper: fix incorrect newlines in an error
message, 2021-10-23) accidentally added a new, unused parameter while
changing the name and signature of show_fetch_remotes() to
append_fetch_remotes(). We can drop this to keep things simpler (and
satisfy -Wunused-parameter).

The error is likely because c21fb4676f is fixing a problem from
8c8195e9c3 (submodule--helper: introduce add-clone subcommand,
2021-07-10). An earlier iteration of that second commit introduced the
same unused parameter (though it was dropped before it finally made it
to 'next'), and the fix on top accidentally carried forward the extra
parameter.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-27 10:42:11 -07:00
Junio C Hamano
06355d72dc Merge branch 'ab/pkt-line-cleanup'
Code clean-up.

* ab/pkt-line-cleanup:
  pkt-line.[ch]: remove unused packet_read_line_buf()
  pkt-line.[ch]: remove unused packet_buf_write_len()
2021-10-25 16:07:00 -07:00
Junio C Hamano
54c4f8ce52 Merge branch 'ab/mark-leak-free-tests-more'
Bunch of tests are marked as "passing leak check".

* ab/mark-leak-free-tests-more:
  merge: add missing strbuf_release()
  ls-files: add missing string_list_clear()
  ls-files: fix a trivial dir_clear() leak
  tests: fix test-oid-array leak, test in SANITIZE=leak
  tests: fix a memory leak in test-oidtree.c
  tests: fix a memory leak in test-parse-options.c
  tests: fix a memory leak in test-prio-queue.c
2021-10-25 16:06:59 -07:00
Junio C Hamano
65ca3245f9 Merge branch 'ab/parse-options-cleanup'
Random changes to parse-options implementation.

* ab/parse-options-cleanup:
  parse-options: change OPT_{SHORT,UNSET} to an enum
  parse-options tests: test optname() output
  parse-options.[ch]: make opt{bug,name}() "static"
  commit-graph: stop using optname()
  parse-options.c: move optname() earlier in the file
  parse-options.h: make the "flags" in "struct option" an enum
  parse-options.c: use exhaustive "case" arms for "enum parse_opt_result"
  parse-options.[ch]: consistently use "enum parse_opt_result"
  parse-options.[ch]: consistently use "enum parse_opt_flags"
  parse-options.h: move PARSE_OPT_SHELL_EVAL between enums
2021-10-25 16:06:59 -07:00
Junio C Hamano
18c6653da0 Merge branch 'fs/ssh-signing'
Use ssh public crypto for object and push-cert signing.

* fs/ssh-signing:
  ssh signing: test that gpg fails for unknown keys
  ssh signing: tests for logs, tags & push certs
  ssh signing: duplicate t7510 tests for commits
  ssh signing: verify signatures using ssh-keygen
  ssh signing: provide a textual signing_key_id
  ssh signing: retrieve a default key from ssh-agent
  ssh signing: add ssh key format and signing code
  ssh signing: add test prereqs
  ssh signing: preliminary refactoring and clean-up
2021-10-25 16:06:58 -07:00
Junio C Hamano
061a21d36d Merge branch 'ab/fsck-unexpected-type'
"git fsck" has been taught to report mismatch between expected and
actual types of an object better.

* ab/fsck-unexpected-type:
  fsck: report invalid object type-path combinations
  fsck: don't hard die on invalid object types
  object-file.c: stop dying in parse_loose_header()
  object-file.c: return ULHR_TOO_LONG on "header too long"
  object-file.c: use "enum" return type for unpack_loose_header()
  object-file.c: simplify unpack_loose_short_header()
  object-file.c: make parse_loose_header_extended() public
  object-file.c: return -1, not "status" from unpack_loose_header()
  object-file.c: don't set "typep" when returning non-zero
  cat-file tests: test for current --allow-unknown-type behavior
  cat-file tests: add corrupt loose object test
  cat-file tests: test for missing/bogus object with -t, -s and -p
  cat-file tests: move bogus_* variable declarations earlier
  fsck tests: test for garbage appended to a loose object
  fsck tests: test current hash/type mismatch behavior
  fsck tests: refactor one test to use a sub-repo
  fsck tests: add test for fsck-ing an unknown type
2021-10-25 16:06:56 -07:00
Kaartic Sivaraam
c21fb4676f submodule--helper: fix incorrect newlines in an error message
A refactoring[1] done as part of the recent conversion of
'git submodule add' to builtin, changed the error message
shown when a Git directory already exists locally for a submodule
name. Before the refactoring, the error used to appear like so:

  --- START OF OUTPUT ---
  $ git submodule add ../sub/ subm
  A git directory for 'subm' is found locally with remote(s):
    origin        /me/git-repos-for-test/sub
  If you want to reuse this local git directory instead of cloning again from
    /me/git-repos-for-test/sub
  use the '--force' option. If the local git directory is not the correct repo
  or you are unsure what this means choose another name with the '--name' option.
  ---  END OF OUTPUT  ---

After the refactoring the error started appearing like so:

  --- START OF OUTPUT ---
  $ git submodule add ../sub/ subm
  A git directory for 'subm' is found locally with remote(s):  origin     /me/git-repos-for-test/sub
  fatal: If you want to reuse this local git directory instead of cloning again from
  /me/git-repos-for-test/sub
  use the '--force' option. If the local git directory is not the correct repo
  or if you are unsure what this means, choose another name with the '--name' option.

  ---  END OF OUTPUT  ---

As one could observe the remote information is printed along with the
first line rather than on its own line. Also, there's an additional
newline following output.

Make the error message consistent with the error message that used to be
printed before the refactoring.

This also moves the 'fatal:' prefix that appears in the middle of the
error message to the first line as it would more appropriate to have
it in the first line. The output after the change would look like:

  --- START OF OUTPUT ---
  $ git submodule add ../sub/ subm
  fatal: A git directory for 'subm' is found locally with remote(s):
    origin        /me/git-repos-for-test/sub
  If you want to reuse this local git directory instead of cloning again from
    /me/git-repos-for-test/sub
  use the '--force' option. If the local git directory is not the correct repo
  or you are unsure what this means choose another name with the '--name' option.
  ---  END OF OUTPUT  ---

[1]: https://lore.kernel.org/git/20210710074801.19917-5-raykar.ath@gmail.com/#t

Signed-off-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 23:01:56 -07:00
Ævar Arnfjörð Bjarmason
3c8150497f reflog: free() ref given to us by dwim_log()
When dwim_log() returns the "ref" is always ether NULL or an
xstrdup()'d string.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Ævar Arnfjörð Bjarmason
c270b055d9 submodule--helper: fix small memory leaks
Add a missing strbuf_release() and a clear_pathspec() to the
submodule--helper.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Ævar Arnfjörð Bjarmason
27ff1fbc5d clone: fix a memory leak of the "git_dir" variable
At this point in cmd_clone the "git_dir" is always either an
xstrdup()'d string, or something we got from mkpathdup(). Let's free()
it before we clobber it.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Ævar Arnfjörð Bjarmason
b202e51b15 grep: fix a "path_list" memory leak
Free the "path_list" used in builtin/grep.c, it was declared as
STRING_LIST_INIT_NODUP, let's change it to a STRING_LIST_INIT_DUP
since an early user in cmd_grep() appends a string passed via
parse-options.c to it, which needs to be duplicated.

Let's then convert the remaining callers to use
string_list_append_nodup() instead, allowing us to free the list.

This makes all the tests in t7811-grep-open.sh pass, 6/10 would fail
before this change. The only remaining failure would have been due to
a stray "git checkout" (which still leaks memory). In this case we can
use a "git reset --hard" instead, so let's do that, and move the
test_when_finished() above the code that would modify the relevant
file.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Ævar Arnfjörð Bjarmason
96c101257b grep: use object_array_clear() in cmd_grep()
Free the "struct object_array" before exiting. This makes grep tests
(e.g.  "t7815-grep-binary.sh") a bit happer under SANITIZE=leak.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Ævar Arnfjörð Bjarmason
a2fb7672c0 grep: prefer "struct grep_opt" over its "void *" equivalent
Stylistically fix up code added in bfac23d953 (grep: Fix two memory
leaks, 2010-01-30). We usually don't use the "arg" at all once we've
casted it to the struct we want, let's not do that here when we're
freeing it. Perhaps it was thought that a cast to "void *" would
otherwise be needed?

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Junio C Hamano
98e7ab6d42 for-each-ref: delay parsing of --sort=<atom> options
The for-each-ref family of commands invoke parsers immediately when
it sees each --sort=<atom> option, and die before even seeing the
other options on the command line when the <atom> is unrecognised.

Instead, accumulate them in a string list, and have them parsed into
a ref_sorting structure after the command line parsing is done.  As
a consequence, "git branch --sort=bogus -h" used to fail to give the
brief help, which arguably may have been a feature, now does so,
which is more consistent with how other options work.

The patch is smaller than the actual extent of the "damage" to the
codebase, thanks to the fact that the original code consistently
used OPT_REF_SORT() macro to handle command line options.  We only
needed to replace the variable used for the list, and implementation
of the callback function used in the macro.

The old rule was for the users of the API to:

 - Declare ref_sorting and ref_sorting_tail variables;

 - OPT_REF_SORT() macro will instantiate ref_sorting instance (which
   may barf and die) and append it to the tail;

 - Append to the tail each ref_sorting read from the configuration
   by parsing in the config callback (which may barf and die);

 - See if ref_sorting is null and use ref_sorting_default() instead.

Now the rule is not all that different but is simpler:

 - Declare ref_sorting_options string list.

 - OPT_REF_SORT() macro will append it to the string list;

 - Append to the string list the sort key read from the
   configuration;

 - call ref_sorting_options() to turn the string list to ref_sorting
   structure (which also deals with the default value).

As side effects, this change also cleans up a few issues:

 - 95be717c (parse_opt_ref_sorting: always use with NONEG flag,
   2019-03-20) muses that "git for-each-ref --no-sort" should simply
   clear the sort keys accumulated so far; it now does.

 - The implementation detail of "struct ref_sorting" and the helper
   function parse_ref_sorting() can now be private to the ref-filter
   API implementation.

 - If you set branch.sort to a bogus value, the any "git branch"
   invocation, not only the listing mode, would abort with the
   original code; now it doesn't

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-20 14:33:07 -07:00
Ævar Arnfjörð Bjarmason
d72d4f92e2 branch: use ref_sorting_release()
Use a ref_sorting_release() in branch.c to free the memory from the
ref_sorting_options(). This plugs the final in-tree memory leak of
that API.

In the preceding commit the "sorting" variable was left in the
cmd_branch() scope, even though that wasn't needed anymore. Move it to
the "else if (list)" scope instead. We can also move the "struct
string_list" only used for that branch to be declared in that block

That "struct ref_sorting" does not need to be "static" (and isn't
re-used). The "ref_sorting_options()" will return a valid one, we
don't need to make it "static" to have it zero'd out. That it was
static was another artifact of the pre-image of the preceding commit.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-20 11:36:13 -07:00
Ævar Arnfjörð Bjarmason
e5fb028688 ref-filter API user: add and use a ref_sorting_release()
Add a ref_sorting_release() and use it for some of the current API
users, the ref_sorting_default() function and its siblings will do a
malloc() which wasn't being free'd previously.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-20 11:36:13 -07:00
Ævar Arnfjörð Bjarmason
37766b61cd tag: use a "goto cleanup" pattern, leak less memory
Change cmd_tag() to free its "struct strbuf"'s instead of using an
UNLEAK() pattern. This changes code added in 886e1084d7 (builtin/:
add UNLEAKs, 2017-10-01).

As shown in the context of the declaration of the "struct
msg_arg" (which I'm changing to use a designated initializer while at
it, and to show the context in this change), that struct is just a
thin wrapper around an int and "struct strbuf".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-20 11:36:13 -07:00
Junio C Hamano
092228ee5c Merge branch 'jk/cat-file-batch-all-wo-replace'
"git cat-file --batch" with the "--batch-all-objects" option is
supposed to iterate over all the objects found in a repository, but
it used to translate these object names using the replace mechanism,
which defeats the point of enumerating all objects in the repository.
This has been corrected.

* jk/cat-file-batch-all-wo-replace:
  cat-file: use packed_object_info() for --batch-all-objects
  cat-file: split ordered/unordered batch-all-objects callbacks
  cat-file: disable refs/replace with --batch-all-objects
  cat-file: mention --unordered along with --batch-all-objects
  t1006: clean up broken objects
2021-10-18 15:47:57 -07:00
Junio C Hamano
a4b9fb6a5c Merge branch 'ab/designated-initializers-more'
Code clean-up.

* ab/designated-initializers-more:
  builtin/remote.c: add and use SHOW_INFO_INIT
  builtin/remote.c: add and use a REF_STATES_INIT
  urlmatch.[ch]: add and use URLMATCH_CONFIG_INIT
  builtin/blame.c: refactor commit_info_init() to COMMIT_INFO_INIT macro
  daemon.c: refactor hostinfo_init() to HOSTINFO_INIT macro
2021-10-18 15:47:57 -07:00
Junio C Hamano
0b69bb0fb1 Merge branch 'tb/repack-write-midx'
"git repack" has been taught to generate multi-pack reachability
bitmaps.

* tb/repack-write-midx:
  test-read-midx: fix leak of bitmap_index struct
  builtin/repack.c: pass `--refs-snapshot` when writing bitmaps
  builtin/repack.c: make largest pack preferred
  builtin/repack.c: support writing a MIDX while repacking
  builtin/repack.c: extract showing progress to a variable
  builtin/repack.c: rename variables that deal with non-kept packs
  builtin/repack.c: keep track of existing packs unconditionally
  midx: preliminary support for `--refs-snapshot`
  builtin/multi-pack-index.c: support `--stdin-packs` mode
  midx: expose `write_midx_file_only()` publicly
2021-10-18 15:47:57 -07:00
Junio C Hamano
223a1bfb58 Merge branch 'js/retire-preserve-merges'
The "--preserve-merges" option of "git rebase" has been removed.

* js/retire-preserve-merges:
  sequencer: restrict scope of a formerly public function
  rebase: remove a no-longer-used function
  rebase: stop mentioning the -p option in comments
  rebase: remove obsolete code comment
  rebase: drop the internal `rebase--interactive` command
  git-svn: drop support for `--preserve-merges`
  rebase: drop support for `--preserve-merges`
  pull: remove support for `--rebase=preserve`
  tests: stop testing `git rebase --preserve-merges`
  remote: warn about unhandled branch.<name>.rebase values
  t5520: do not use `pull.rebase=preserve`
2021-10-18 15:47:56 -07:00
Jeff King
e4c9538a9c send-pack: complain about "expecting report" with --helper-status
When pushing to a server which erroneously omits the final ref-status
report, the client side should complain about the refs for which we
didn't receive the status (because we can't just assume they were
updated). This works over most transports like ssh, but for http we'll
print a very misleading "Everything up-to-date".

It works for ssh because send-pack internally sets the status of each
ref to REF_STATUS_EXPECTING_REPORT, and then if the server doesn't tell
us about a particular ref, it will stay at that value. When we print the
final status table, we'll see that we're still on EXPECTING_REPORT and
complain then.

But for http, we go through remote-curl, which invokes send-pack with
"--stateless-rpc --helper-status". The latter option causes send-pack to
return a machine-readable list of ref statuses to the remote helper. But
ever since its inception in de1a2fdd38 (Smart push over HTTP: client
side, 2009-10-30), the send-pack code has simply omitted mention of any
ref which ended up in EXPECTING_REPORT.

In the remote helper, we then take the absence of any status report
from send-pack to mean that the ref was not even something we tried to
send, and thus it prints "Everything up-to-date". Fortunately it does
detect the eventual non-zero exit from send-pack, and propagates that in
its own non-zero exit code. So at least a careful script invoking "git
push" would notice the failure.  But sending the misleading message on
stderr is certainly confusing for humans (not to mention the
machine-readable "push --porcelain" output, though again, any careful
script should be checking the exit code from push, too).

Nobody seems to have noticed because the server in this instance has to
be misbehaving: it has promised to support the ref-status capability
(otherwise the client will not set EXPECTING_REPORT at all), but didn't
send us any. If the connection were simply cut, then send-pack would
complain about getting EOF while trying to read the status. But if the
server actually sends a flush packet (i.e., saying "now you have all of
the ref statuses" without actually sending any), then the client ends up
in this confused situation.

The fix is simple: we should return an error message from "send-pack
--helper-status", just like we would for any other error per-ref error
condition (in the test I included, the server simply omits all ref
status responses, but a more insidious version of this would skip only
some of them).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-18 13:26:52 -07:00
Sergey Organov
41a28eb6c1 stash: implement '--staged' option for 'push' and 'save'
Stash only the changes that are staged.

This mode allows to easily stash-out for later reuse some changes
unrelated to the current work in progress.

Unlike 'stash push --patch', --staged supports use of any tool to
select the changes to stash-out, including, but not limited to 'git
add --interactive'.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-18 13:09:21 -07:00
Glen Choo
a897ab7ed1 gc: perform incremental repack when implictly enabled
builtin/gc.c has two ways of checking if multi-pack-index is enabled:
- git_config_get_bool() in incremental_repack_auto_condition()
- the_repository->settings.core_multi_pack_index in
  maintenance_task_incremental_repack()

The two implementations have existed since the incremental-repack task
was introduced in e841a79a13 (maintenance: add incremental-repack auto
condition, 2020-09-25). These two values can diverge because
prepare_repo_settings() enables the feature in the_repository->settings
by default.

In the case where core.multiPackIndex is not set in the config, the auto
condition would fail, causing the incremental-repack task to not be
run. Because we always want to consider the default values, we should
always use the_repository->settings.

Standardize on using the_repository->settings.core_multi_pack_index to
check if multi-pack-index is enabled.

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-15 14:30:10 -07:00
Glen Choo
dc5570872f fsck: verify multi-pack-index when implictly enabled
Like the previous commit, change fsck to check the
"core_multi_pack_index" variable set in "repo-settings.c" instead of
reading the "core.multiPackIndex" config variable. This fixes a bug
where we wouldn't verify midx if the config key was missing. This bug
was introduced in 18e449f86b (midx: enable core.multiPackIndex by
default, 2020-09-25) where core.multiPackIndex was turned on by default.

Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-15 14:30:08 -07:00
Glen Choo
f30e4d854b fsck: verify commit graph when implicitly enabled
Change fsck to check the "core_commit_graph" variable set in
"repo-settings.c" instead of reading the "core.commitGraph" variable.
This fixes a bug where we wouldn't verify the commit-graph if the
config key was missing. This bug was introduced in
31b1de6a09 (commit-graph: turn on commit-graph by default, 2019-08-13),
where core.commitGraph was turned on by default.

Add tests to "t5318-commit-graph.sh" to verify that fsck checks the
commit-graph as expected for the 3 values of core.commitGraph. Also,
disable GIT_TEST_COMMIT_GRAPH in t/t0410-partial-clone.sh because some
test cases use fsck in ways that assume that commit-graph checking is
disabled.

Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-15 14:30:07 -07:00
Junio C Hamano
ed41385ad6 Merge branch 'ab/ignore-replace-while-working-on-commit-graph' into gc/use-repo-settings
* ab/ignore-replace-while-working-on-commit-graph:
  commit-graph: don't consider "replace" objects with "verify"
  commit-graph tests: fix another graph_git_two_modes() helper
  commit-graph tests: fix error-hiding graph_git_two_modes() helper
2021-10-15 14:30:00 -07:00
Ævar Arnfjörð Bjarmason
ec9a37d69b pkt-line.[ch]: remove unused packet_read_line_buf()
This function was added in 4981fe750b (pkt-line: share
buffer/descriptor reading implementation, 2013-02-23), but in
01f9ec64c8 (Use packet_reader instead of packet_read_line,
2018-12-29) the code that was using it was removed.

Since it's being removed we can in turn remove the "src" and "src_len"
arguments to packet_read(), all the remaining users just passed a
NULL/NULL pair to it.

That function is only a thin wrapper for packet_read_with_status()
which still needs those arguments, but for the thin packet_read()
convenience wrapper we can do away with it for now.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-15 13:09:40 -07:00
Ævar Arnfjörð Bjarmason
095d112f8c commit-graph: don't consider "replace" objects with "verify"
Extend the code added in d6538246d3 (commit-graph: not compatible
with replace objects, 2018-08-20) which ignored replace objects in the
"write" command to ignore it in the "verify" command too.

We can just move this assignment to the cmd_commit_graph(), it
dispatches to "write" and "verify", and we're unlikely to ever get a
sub-command that would like to consider replace refs.

This will make tests added in eddc1f556c (mktag tests: test
update-ref and reachable fsck, 2021-06-17) pass in combination with
the "GIT_TEST_COMMIT_GRAPH" mode added in 859fdc0c3c (commit-graph:
define GIT_TEST_COMMIT_GRAPH, 2018-08-29), except that mode is
currently broken (but is being fixed concurrently). See the discussion
starting at [1].

1. https://lore.kernel.org/git/87wnmihswp.fsf@evledraar.gmail.com/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-15 09:21:30 -07:00
Junio C Hamano
d7bc852151 Merge branch 'ab/align-parse-options-help'
When "git cmd -h" shows more than one line of usage text (e.g.
the cmd subcommand may take sub-sub-command), parse-options API
learned to align these lines, even across i18n/l10n.

* ab/align-parse-options-help:
  parse-options: properly align continued usage output
  git rev-parse --parseopt tests: add more usagestr tests
  send-pack: properly use parse_options() API for usage string
  parse-options API users: align usage output in C-strings
2021-10-13 15:15:58 -07:00
Junio C Hamano
62f035aee3 Merge branch 'ab/help-config-vars'
Teach "git help -c" into helping the command line completion of
configuration variables.

* ab/help-config-vars:
  help: move column config discovery to help.c library
  help / completion: make "git help" do the hard work
  help tests: test --config-for-completion option & output
  help: simplify by moving to OPT_CMDMODE()
  help: correct logic error in combining --all and --guides
  help: correct logic error in combining --all and --config
  help tests: add test for --config output
  help: correct usage & behavior of "git help --guides"
  help: correct the usage string in -h and documentation
2021-10-13 15:15:58 -07:00
Junio C Hamano
a5e61a4225 Merge branch 'ab/config-based-hooks-1'
Mostly preliminary clean-up in the hook API.

* ab/config-based-hooks-1:
  hook-list.h: add a generated list of hooks, like config-list.h
  hook.c users: use "hook_exists()" instead of "find_hook()"
  hook.c: add a hook_exists() wrapper and use it in bugreport.c
  hook.[ch]: move find_hook() from run-command.c to hook.c
  Makefile: remove an out-of-date comment
  Makefile: don't perform "mv $@+ $@" dance for $(GENERATED_H)
  Makefile: stop hardcoding {command,config}-list.h
  Makefile: mark "check" target as .PHONY
2021-10-13 15:15:57 -07:00
Junio C Hamano
a7c2daa06d Merge branch 'en/removing-untracked-fixes'
Various fixes in code paths that move untracked files away to make room.

* en/removing-untracked-fixes:
  Documentation: call out commands that nuke untracked files/directories
  Comment important codepaths regarding nuking untracked files/dirs
  unpack-trees: avoid nuking untracked dir in way of locally deleted file
  unpack-trees: avoid nuking untracked dir in way of unmerged file
  Change unpack_trees' 'reset' flag into an enum
  Remove ignored files by default when they are in the way
  unpack-trees: make dir an internal-only struct
  unpack-trees: introduce preserve_ignored to unpack_trees_options
  read-tree, merge-recursive: overwrite ignored files by default
  checkout, read-tree: fix leak of unpack_trees_options.dir
  t2500: add various tests for nuking untracked files
2021-10-13 15:15:57 -07:00
Junio C Hamano
2d498a7c89 Merge branch 'ds/add-rm-with-sparse-index'
"git add", "git mv", and "git rm" have been adjusted to avoid
updating paths outside of the sparse-checkout definition unless
the user specifies a "--sparse" option.

* ds/add-rm-with-sparse-index:
  advice: update message to suggest '--sparse'
  mv: refuse to move sparse paths
  rm: skip sparse paths with missing SKIP_WORKTREE
  rm: add --sparse option
  add: update --renormalize to skip sparse paths
  add: update --chmod to skip sparse paths
  add: implement the --sparse option
  add: skip tracked paths outside sparse-checkout cone
  add: fail when adding an untracked sparse file
  dir: fix pattern matching on dirs
  dir: select directories correctly
  t1092: behavior for adding sparse files
  t3705: test that 'sparse_entry' is unstaged
2021-10-13 15:15:56 -07:00
Junio C Hamano
ef09a7fbbe Merge branch 'da/difftool-dir-diff-symlink-fix' into maint
"git difftool --dir-diff" mishandled symbolic links.

* da/difftool-dir-diff-symlink-fix:
  difftool: fix symlink-file writing in dir-diff mode
2021-10-12 13:51:48 -07:00
Junio C Hamano
c365967f21 Merge branch 'jk/clone-unborn-head-in-bare' into maint
"git clone" from a repository whose HEAD is unborn into a bare
repository didn't follow the branch name the other side used, which
is corrected.

* jk/clone-unborn-head-in-bare:
  clone: handle unborn branch in bare repos
2021-10-12 13:51:47 -07:00
Junio C Hamano
e61304f21d Merge branch 'en/stash-df-fix' into maint
"git stash", where the tentative change involves changing a
directory to a file (or vice versa), was confused, which has been
corrected.

* en/stash-df-fix:
  stash: restore untracked files AFTER restoring tracked files
  stash: avoid feeding directories to update-index
  t3903: document a pair of directory/file bugs
2021-10-12 13:51:47 -07:00
Junio C Hamano
b809c3d900 Merge branch 'en/am-abort-fix' into maint
When "git am --abort" fails to abort correctly, it still exited
with exit status of 0, which has been corrected.

* en/am-abort-fix:
  am: fix incorrect exit status on am fail to abort
  t4151: add a few am --abort tests
  git-am.txt: clarify --abort behavior
2021-10-12 13:51:46 -07:00
Junio C Hamano
b5f309dc7f Merge branch 'ps/update-ref-batch-flush' into maint
"git update-ref --stdin" failed to flush its output as needed,
which potentially led the conversation to a deadlock.

* ps/update-ref-batch-flush:
  t1400: avoid SIGPIPE race condition on fifo
  update-ref: fix streaming of status updates
2021-10-12 13:51:46 -07:00
Junio C Hamano
6287460203 Merge branch 'tb/pack-finalize-ordering' into maint
The order in which various files that make up a single (conceptual)
packfile has been reevaluated and straightened up.  This matters in
correctness, as an incomplete set of files must not be shown to a
running Git.

* tb/pack-finalize-ordering:
  pack-objects: rename .idx files into place after .bitmap files
  pack-write: split up finish_tmp_packfile() function
  builtin/index-pack.c: move `.idx` files into place last
  index-pack: refactor renaming in final()
  builtin/repack.c: move `.idx` files into place last
  pack-write.c: rename `.idx` files after `*.rev`
  pack-write: refactor renaming in finish_tmp_packfile()
  bulk-checkin.c: store checksum directly
  pack.h: line-wrap the definition of finish_tmp_packfile()
2021-10-12 13:51:46 -07:00
Junio C Hamano
bf4ca3fdd2 Merge branch 'so/diff-index-regression-fix' into maint
Recent "diff -m" changes broke "gitk", which has been corrected.

* so/diff-index-regression-fix:
  diff-index: restore -c/--cc options handling
2021-10-12 13:51:44 -07:00
Junio C Hamano
48939c572c Merge branch 'tk/fast-export-anonymized-tag-fix' into maint
The output from "git fast-export", when its anonymization feature
is in use, showed an annotated tag incorrectly.

* tk/fast-export-anonymized-tag-fix:
  fast-export: fix anonymized tag using original length
2021-10-12 13:51:43 -07:00
Junio C Hamano
69247e283c Merge branch 'sg/column-nl' into maint
The parser for the "--nl" option of "git column" has been
corrected.

* sg/column-nl:
  column: fix parsing of the '--nl' option
2021-10-12 13:51:41 -07:00
Junio C Hamano
474e4f9b55 Merge branch 'rs/branch-allow-deleting-dangling' into maint
"git branch -D <branch>" used to refuse to remove a broken branch
ref that points at a missing commit, which has been corrected.

* rs/branch-allow-deleting-dangling:
  branch: allow deleting dangling branches with --force
2021-10-12 13:51:41 -07:00
Junio C Hamano
cd9a57f6a0 Merge branch 'mt/quiet-with-delayed-checkout' into maint
The delayed checkout code path in "git checkout" etc. were chatty
even when --quiet and/or --no-progress options were given.

* mt/quiet-with-delayed-checkout:
  checkout: make delayed checkout respect --quiet and --no-progress
2021-10-12 13:51:40 -07:00
Junio C Hamano
444b8548b1 Merge branch 'jk/commit-edit-fixup-fix' into maint
"git commit --fixup" now works with "--edit" again, after it was
broken in v2.32.

* jk/commit-edit-fixup-fix:
  commit: restore --edit when combined with --fixup
2021-10-12 13:51:38 -07:00
Junio C Hamano
b20f67a659 Merge branch 'en/pull-conflicting-options' into maint
"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
2021-10-12 13:51:36 -07:00
Junio C Hamano
6d71443d8e Merge branch 'jt/push-negotiation-fixes' into maint
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
2021-10-12 13:51:36 -07:00
Junio C Hamano
0a15e94e10 Merge branch 'ab/pack-stdin-packs-fix' into maint
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
2021-10-12 13:51:36 -07:00
Junio C Hamano
f72187eaf5 Merge branch 'jc/prefix-filename-allocates' into maint
Leakfix.

* jc/prefix-filename-allocates:
  hash-object: prefix_filename() returns allocated memory these days
2021-10-12 13:51:32 -07:00
Junio C Hamano
690bd356fe Merge branch 'rs/show-branch-simplify' into maint
Code cleanup.

* rs/show-branch-simplify:
  show-branch: simplify rev_is_head()
2021-10-12 13:51:31 -07:00
Junio C Hamano
49b7148778 Merge branch 'ab/gc-log-rephrase' into maint
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
2021-10-12 13:51:30 -07:00
Junio C Hamano
1c23cc1344 Merge branch 'rs/xopen-reports-open-failures' into maint
Error diagnostics improvement.

* rs/xopen-reports-open-failures:
  use xopen() to handle fatal open(2) failures
  xopen: explicitly report creation failures
2021-10-12 13:51:28 -07:00
Junio C Hamano
b40b6187e4 Merge branch 'js/maintenance-launchctl-fix' into maint
"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
2021-10-12 13:51:27 -07:00
Junio C Hamano
9b338cbefd Merge branch 'ab/rebase-fatal-fatal-fix' into maint
Error message fix.

* ab/rebase-fatal-fatal-fix:
  rebase: emit one "fatal" in "fatal: fatal: <error>"
2021-10-12 13:51:27 -07:00
Junio C Hamano
d79e73a833 Merge branch 'ab/ls-remote-packet-trace' into maint
Debugging aid fix.

* ab/ls-remote-packet-trace:
  ls-remote: set packet_trace_identity(<name>)
2021-10-12 13:51:26 -07:00
Junio C Hamano
6a0699bccc Merge branch 'cb/builtin-merge-format-string-fix' into maint
Code clean-up.

* cb/builtin-merge-format-string-fix:
  builtin/merge: avoid -Wformat-extra-args from ancient Xcode
2021-10-12 13:51:23 -07:00
Junio C Hamano
77357e806f Merge branch 'en/merge-strategy-docs' into maint
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
2021-10-12 13:51:22 -07:00
Junio C Hamano
1e50f2a689 Merge branch 'mr/bisect-in-c-4'
Message fix.

* mr/bisect-in-c-4:
  bisect--helper: add space between colon and following sentence
2021-10-11 10:21:49 -07:00
Junio C Hamano
0cc4ec1550 Merge branch 'da/difftool'
Code clean-up in "git difftool".

* da/difftool:
  difftool: add a missing space to the run_dir_diff() comments
  difftool: remove an unnecessary call to strbuf_release()
  difftool: refactor dir-diff to write files using helper functions
  difftool: create a tmpdir path without repeated slashes
2021-10-11 10:21:48 -07:00
Junio C Hamano
404c4a5462 Merge branch 'ab/designated-initializers'
Code clean-up.

* ab/designated-initializers:
  cbtree.h: define cb_init() in terms of CBTREE_INIT
  *.h: move some *_INIT to designated initializers
  *.h _INIT macros: don't specify fields equal to 0
  *.[ch] *_INIT macros: use { 0 } for a "zero out" idiom
  submodule-config.h: remove unused SUBMODULE_INIT macro
2021-10-11 10:21:48 -07:00
Junio C Hamano
f6c075ad71 Merge branch 'jk/ref-paranoia'
The ref iteration code used to optionally allow dangling refs to be
shown, which has been tightened up.

* jk/ref-paranoia:
  refs: drop "broken" flag from for_each_fullref_in()
  ref-filter: drop broken-ref code entirely
  ref-filter: stop setting FILTER_REFS_INCLUDE_BROKEN
  repack, prune: drop GIT_REF_PARANOIA settings
  refs: turn on GIT_REF_PARANOIA by default
  refs: omit dangling symrefs when using GIT_REF_PARANOIA
  refs: add DO_FOR_EACH_OMIT_DANGLING_SYMREFS flag
  refs-internal.h: reorganize DO_FOR_EACH_* flag documentation
  refs-internal.h: move DO_FOR_EACH_* flags next to each other
  t5312: be more assertive about command failure
  t5312: test non-destructive repack
  t5312: create bogus ref as necessary
  t5312: drop "verbose" helper
  t5600: provide detached HEAD for corruption failures
  t5516: don't use HEAD ref for invalid ref-deletion tests
  t7900: clean up some more broken refs
2021-10-11 10:21:47 -07:00
Junio C Hamano
9567a670d2 Merge branch 'tb/midx-write-propagate-namehash'
"git multi-pack-index write --bitmap" learns to propagate the
hashcache from original bitmap to resulting bitmap.

* tb/midx-write-propagate-namehash:
  t5326: test propagating hashcache values
  p5326: generate pack bitmaps before writing the MIDX bitmap
  p5326: don't set core.multiPackIndex unnecessarily
  p5326: create missing 'perf-tag' tag
  midx.c: respect 'pack.writeBitmapHashcache' when writing bitmaps
  pack-bitmap.c: propagate namehash values from existing bitmaps
  t/helper/test-bitmap.c: add 'dump-hashes' mode
2021-10-11 10:21:46 -07:00
Jeff King
bf972896d7 cat-file: use packed_object_info() for --batch-all-objects
When "cat-file --batch-all-objects" iterates over each object, it knows
where to find each one. But when we look up details of the object, we
don't use that information at all.

This patch teaches it to use the pack/offset pair when we're iterating
over objects in a pack. This yields a measurable speed improvement
(timings on a fully packed clone of linux.git):

  Benchmark #1: ./git.old cat-file --batch-all-objects --unordered --batch-check="%(objecttype) %(objectname)"
    Time (mean ± σ):      8.128 s ±  0.118 s    [User: 7.968 s, System: 0.156 s]
    Range (min … max):    8.007 s …  8.301 s    10 runs

  Benchmark #2: ./git.new cat-file --batch-all-objects --unordered --batch-check="%(objecttype) %(objectname)"
    Time (mean ± σ):      4.294 s ±  0.064 s    [User: 4.167 s, System: 0.125 s]
    Range (min … max):    4.227 s …  4.457 s    10 runs

  Summary
    './git.new cat-file --batch-all-objects --unordered --batch-check="%(objecttype) %(objectname)"' ran
      1.89 ± 0.04 times faster than './git.old cat-file --batch-all-objects --unordered --batch-check="%(objecttype) %(objectname)"

The implementation is pretty simple: we just call packed_object_info()
instead of oid_object_info_extended() when we can. Most of the changes
are just plumbing the pack/offset pair through the callstack. There is
one subtlety: replace lookups are not handled by packed_object_info().
But since those are disabled for --batch-all-objects, and since we'll
only have pack info when that option is in effect, we don't have to
worry about that.

There are a few limitations to this optimization which we could address
with further work:

 - I didn't bother recording when we found an object loose. Technically
   this could save us doing a fruitless lookup in the pack index. But
   opening and mmap-ing a loose object is so expensive in the first
   place that this doesn't matter much. And if your repository is large
   enough to care about per-object performance, most objects are going
   to be packed anyway.

 - This works only in --unordered mode. For the sorted mode, we'd have
   to record the pack/offset pair as part of our oid-collection. That's
   more code, plus at least 16 extra bytes of heap per object. It would
   probably still be a net win in runtime, but we'd need to measure.

 - For --batch, this still helps us with getting the object metadata,
   but we still do a from-scratch lookup for the object contents. This
   probably doesn't matter that much, because the lookup cost will be
   much smaller relative to the cost of actually unpacking and printing
   the objects.

   For small objects, we could probably swap out read_object_file() for
   using packed_object_info() with a "object_info.contentp" to get the
   contents. But we'd still need to deal with streaming for larger
   objects. A better path forward here is to teach the initial
   oid_object_info_extended() / packed_object_info() calls to retrieve
   the contents of smaller objects while they are already being
   accessed. That would save the extra lookup entirely. But it's a
   non-trivial feature to add to the object_info code, so I left it for
   now.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08 15:45:14 -07:00
Jeff King
818e393084 cat-file: split ordered/unordered batch-all-objects callbacks
When we originally added --batch-all-objects, it stuffed everything into
an oid_array(), and then iterated over that array with a callback to
write the actual output.

When we later added --unordered, that code path writes immediately as we
discover each object, but just calls the same batch_object_cb() as our
entry point to the writing code. That callback has a narrow interface;
it only receives the oid, but we know much more about each object in the
unordered write (which we'll make use of in the next patch). So let's
just call batch_object_write() directly. The callback wasn't saving us
much effort.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08 15:45:14 -07:00