Commit Graph

69453 Commits

Author SHA1 Message Date
Junio C Hamano
6cdb8cd693 Merge branch 'jk/avoid-redef-system-functions' into maint-2.39
The jk/avoid-redef-system-functions-2.30 topic pre-merged for more
recent codebase.

* jk/avoid-redef-system-functions:
2023-02-14 14:15:49 -08:00
Junio C Hamano
f3a28c2e09 Merge branch 'jk/avoid-redef-system-functions-2.30' into maint-2.39
Redefining system functions for a few functions did not follow our
usual "implement git_foo() and #define foo(args) git_foo(args)"
pattern, which has broken build for some folks.

* jk/avoid-redef-system-functions-2.30:
  git-compat-util: undefine system names before redeclaring them
  git-compat-util: avoid redefining system function names
2023-02-14 14:15:47 -08:00
Junio C Hamano
83d585a5b9 Merge branch 'tb/ci-concurrency' into maint-2.39
Avoid unnecessary builds in CI, with settings configured in
ci-config.

* tb/ci-concurrency:
  ci: avoid unnecessary builds
2023-02-14 14:15:46 -08:00
Junio C Hamano
f66b749c66 Merge branch 'cw/ci-whitespace' into maint-2.39
CI updates.  We probably want a clean-up to move the long shell
script embedded in yaml file into a separate file, but that can
come later.

* cw/ci-whitespace:
  ci (check-whitespace): move to actions/checkout@v3
  ci (check-whitespace): add links to job output
  ci (check-whitespace): suggest fixes for errors
2023-02-14 14:15:45 -08:00
Junio C Hamano
a9405a8d7d Merge branch 'js/ci-disable-cmake-by-default' into maint-2.39
Stop running win+VS build by default.

* js/ci-disable-cmake-by-default:
  ci: only run win+VS build & tests in Git for Windows' fork
2023-02-14 14:15:45 -08:00
Junio C Hamano
c867e4fa18 Sync with Git 2.39.2 2023-02-13 17:03:55 -08:00
Jeff King
d9ec3b0dc0 doc/ls-remote: clarify pattern format
We document that you can specify "refs" to ls-remote, but we don't
explain any further than that they are "matched" as patterns. Since this
can be interpreted in a lot of ways, let's clarify that they are
tail-matched globs.

Likewise, let's use the word "patterns" to refer to them consistently,
rather than "refs" (both here and in the quick "-h" help), and mention
more explicitly that only one pattern needs to be matched (though there
is also an example already that shows this in action).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10 21:57:51 -08:00
Jeff King
baebde7d19 doc/ls-remote: cosmetic cleanups for examples
There are effectively three example commands and their output, but
they're smushed together with no extra whitespace. Let's add some blank
lines to make them more readable.

Likewise, the first example uses "./." to refer to the path of the
current repository, which is somewhat distracting. That may have been
necessary back in 2005 when it was added, but we can just say "." these
days.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10 18:54:58 -08:00
René Scharfe
93ea118bed cache-tree: fix strbuf growth in prime_cache_tree_rec()
Use size_t to store the original length of the strbuf tree_len, as
that's the correct type.

Don't double the allocated size of the strbuf when adding a subdirectory
name.  And the chance of the trailing slash fitting in the slack left by
strbuf_add() is very high, so stop pre-growing the strbuf at all.

Suggested-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10 12:24:12 -08:00
Ævar Arnfjörð Bjarmason
dfd0a89374 cocci & cache.h: remove "USE_THE_INDEX_COMPATIBILITY_MACROS"
Have the last users of "USE_THE_INDEX_COMPATIBILITY_MACROS" use the
underlying *_index() variants instead. Now all previous users of
"USE_THE_INDEX_COMPATIBILITY_MACROS" have been migrated away from the
wrapper macros, and if applicable to use the "USE_THE_INDEX_VARIABLE"
added in [1].

Let's leave the "index-compatibility.cocci" in place, even though it
won't be doing anything on "master". It will benefit any out-of-tree
code that need to use these compatibility macros. We can eventually
remove it.

1. bdafeae0b9 (cache.h & test-tool.h: add & use
   "USE_THE_INDEX_VARIABLE", 2022-11-19)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10 11:38:40 -08:00
Ævar Arnfjörð Bjarmason
fcb864bce7 cache-tree API: remove redundant update_main_cache_tree()
Remove the redundant update_main_cache_tree() function, and make its
users use cache_tree_update() instead.

The behavior of populating the "the_index.cache_tree" if it wasn't
present already was needed when this function was introduced in [1],
but it hasn't been needed since [2]; The "cache_tree_update()" will
now lazy-allocate, so there's no need for the wrapper.

1. 996277c520 (Refactor cache_tree_update idiom from commit,
   2011-12-06)
2. fb0882648e (cache-tree: clean up cache_tree_update(), 2021-01-23)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10 11:38:14 -08:00
Ævar Arnfjörð Bjarmason
99370863e2 cocci & cache-tree.h: migrate "write_cache_as_tree" to "*_index_*"
Add a trivial rule for "write_cache_as_tree" to
"index-compatibility.cocci", and apply it. This was left out of the
rules added in 0e6550a2c6 (cocci: add a
index-compatibility.pending.cocci, 2022-11-19) because this
compatibility wrapper lived in "cache-tree.h", not "cache.h"

But it's like the other "USE_THE_INDEX_COMPATIBILITY_MACROS", so let's
migrate it too.

The replacement of "USE_THE_INDEX_COMPATIBILITY_MACROS" here with
"USE_THE_INDEX_VARIABLE" is a manual change on top, now that these
files only use "&the_index", and don't need any compatibility
macros (or functions).

The wrapping of some argument lists is likewise manual, as coccinelle
would otherwise give us overly long argument lists.

The reason for putting the "O" in the cocci rule on the "-" and "+"
lines is because I couldn't get correct whitespacing otherwise,
i.e. I'd end up with "oid,&the_index", not "oid, &the_index".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10 11:37:49 -08:00
Ævar Arnfjörð Bjarmason
babed893f5 cocci & cache.h: apply pending "index_cache_pos" rule
Apply the rule added in [1] to change "cache_name_pos" to
"index_name_pos", which allows us to get rid of another
"USE_THE_INDEX_COMPATIBILITY_MACROS" macro.

The replacement of "USE_THE_INDEX_COMPATIBILITY_MACROS" here with
"USE_THE_INDEX_VARIABLE" is a manual change on top, now that these
files only use "&the_index", and don't need any compatibility
macros (or functions).

1. 0e6550a2c6 (cocci: add a index-compatibility.pending.cocci,
   2022-11-19)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10 11:37:27 -08:00
Ævar Arnfjörð Bjarmason
cec13b9514 cocci & cache.h: fully apply "active_nr" part of index-compatibility
Apply the "active_nr" part of "index-compatibility.pending.cocci",
which was left out in [1] due to an in-flight conflict. As of [2] the
topic we conflicted with has been merged to "master", so we can fully
apply this rule.

1. dc594180d9 (cocci & cache.h: apply variable section of "pending"
   index-compatibility, 2022-11-19)
2. 9ea1378d04 (Merge branch 'ab/various-leak-fixes', 2022-12-14)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10 11:31:18 -08:00
Ævar Arnfjörð Bjarmason
6193aaa9f9 builtin/rm.c: use narrower "USE_THE_INDEX_VARIABLE"
Replace the "USE_THE_INDEX_COMPATIBILITY_MACROS" define with the
narrower "USE_THE_INDEX_VARIABLE". This could have been done in
07047d6829 (cocci: apply "pending" index-compatibility to some
"builtin/*.c", 2022-11-19), but I missed it at the time.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10 11:31:16 -08:00
Junio C Hamano
23c56f7bd5 The fifteenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-09 14:40:47 -08:00
Junio C Hamano
6d1b2e48fe Merge branch 'ew/free-island-marks'
"git pack-objects" learned to release delta-island bitmap data when
it is done using it, saving peak heap memory usage.

* ew/free-island-marks:
  delta-islands: free island_marks and bitmaps
2023-02-09 14:40:47 -08:00
Junio C Hamano
8a1d607877 Merge branch 'sk/winansi-createthread-fix'
Fix use of CreateThread() API call made early in the windows
start-up code.

* sk/winansi-createthread-fix:
  compat/winansi: check for errors of CreateThread() correctly
2023-02-09 14:40:47 -08:00
Junio C Hamano
4158b92f16 Merge branch 'hj/remove-msys-support'
Remove support for MSys, which now lags way behind MSys2.

* hj/remove-msys-support:
  mingw: remove msysGit/MSYS1 support
  mingw: remove duplicate `USE_NED_ALLOCATOR` directive
2023-02-09 14:40:47 -08:00
Junio C Hamano
a674c7edcf Merge branch 'jk/httpd-test-updates'
Test update.

* jk/httpd-test-updates:
  t/lib-httpd: increase ssl key size to 2048 bits
  t/lib-httpd: drop SSLMutex config
  t/lib-httpd: bump required apache version to 2.4
  t/lib-httpd: bump required apache version to 2.2
2023-02-09 14:40:47 -08:00
Junio C Hamano
2c91b13751 Merge branch 'gc/index-format-doc'
Doc update.

* gc/index-format-doc:
  docs: document zero bits in index "mode"
2023-02-09 14:40:46 -08:00
Elijah Newren
b2182a8730 name-rev: fix names by dropping taggerdate workaround
Commit 7550424804 ("name-rev: include taggerdate in considering the best
name", 2016-04-22) introduced the idea of using taggerdate in the
criteria for selecting the best name.  At the time, a certain commit in
linux.git -- namely, aed06b9cfcab -- was being named by name-rev as
    v4.6-rc1~9^2~792
which, while correct, was very suboptimal.  Some investigation found
that tweaking the MERGE_TRAVERSAL_WEIGHT to lower it could give
alternate answers such as
    v3.13-rc7~9^2~14^2~42
or
    v3.13~5^2~4^2~2^2~1^2~42
A manual solution involving looking at tagger dates came up with
    v3.13-rc1~65^2^2~42
which is much nicer.  That workaround was then implemented in name-rev.

Unfortunately, the taggerdate heuristic is causing bugs.  I was pointed
to a case in a private repository where name-rev reports a name of the
form
    v2022.10.02~86
when users expected to see one of the form
    v2022.10.01~2
(I've modified the names and numbers a bit from the real testcase.)  As
you can probably guess, v2022.10.01 was created after v2022.10.02 (by a
few hours), even though it pointed to an older commit.  While the
condition is unusual even in the repository in question, it is not the
only problematic set of tags in that repository.  The taggerdate logic
is causing problems.

Further, it turns out that this taggerdate heuristic isn't even helping
anymore.  Due to the fix to naming logic in 3656f84278 ("name-rev:
prefer shorter names over following merges", 2021-12-04), we get
improved names without the taggerdate heuristic.  For the original
commit of interest in linux.git, a modern git without the taggerdate
heuristic still provides the same optimal answer of interest, namely:
    v3.13-rc1~65^2^2~42

So, the taggerdate is no longer providing benefit, and it is causing
problems.  Simply get rid of it.

However, note that "taggerdate" as a variable is used to store things
besides a taggerdate these days.  Ever since commit ef1e74065c
("name-rev: favor describing with tags and use committer date to
tiebreak", 2017-03-29), this has been used to store committer dates and
there it is used as a fallback tiebreaker (as opposed to a primary
criteria overriding effective distance calculations).  We do not want to
remove that fallback tiebreaker, so not all instances of "taggerdate"
are removed in this change.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-09 09:01:36 -08:00
Andrei Rybak
93d52ed050 userdiff: support Java sealed classes
A new kind of class was added in Java 17 -- sealed classes.[1]  This
feature includes several new keywords that may appear in a declaration
of a class.  New modifiers before name of the class: "sealed" and
"non-sealed", and a clause after name of the class marked by keyword
"permits".

The current set of regular expressions in userdiff.c already allows the
modifier "sealed" and the "permits" clause, but not the modifier
"non-sealed", which is the first hyphenated keyword in Java.[2]  Allow
hyphen in the words that precede the name of type to match the
"non-sealed" modifier.

In new input file "java-sealed" for the test t4018-diff-funcname.sh, use
a Java code comment for the marker "RIGHT".  This workaround is needed,
because the name of the sealed class appears on the line of code that
has the "ChangeMe" marker.

[1] Detailed description in "JEP 409: Sealed Classes"
    https://openjdk.org/jeps/409
[2] "JEP draft: Keyword Management for the Java Language"
    https://openjdk.org/jeps/8223002

Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Reviewed-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-08 12:57:13 -08:00
Andrei Rybak
575e6fcfcc userdiff: support Java record types
A new kind of class was added in Java 16 -- records.[1]  The syntax of
records is similar to regular classes with one important distinction:
the name of the record class is followed by a mandatory list of
components.  The list is enclosed in parentheses, it may be empty, and
it may immediately follow the name of the class or type parameters, if
any, with or without separating whitespace.  For example:

    public record Example(int i, String s) {
    }

    public record WithTypeParameters<A, B>(A a, B b, String s) {
    }

    record SpaceBeforeComponents (String comp1, int comp2) {
    }

Support records in the builtin userdiff pattern for Java.  Add "record"
to the alternatives of keywords for kinds of class.

Allowing matching various possibilities for the type parameters and/or
list of the components of a record has already been covered by the
preceding patch.

[1] detailed description is available in "JEP 395: Records"
    https://openjdk.org/jeps/395

Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Reviewed-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-08 12:57:11 -08:00
Andrei Rybak
39226a8dac userdiff: support Java type parameters
A class or interface in Java can have type parameters following the name
in the declared type, surrounded by angle brackets (paired less than and
greater than signs).[2]   The type parameters -- `A` and `B` in the
examples -- may follow the class name immediately:

    public class ParameterizedClass<A, B> {
    }

or may be separated by whitespace:

    public class SpaceBeforeTypeParameters <A, B> {
    }

A part of the builtin userdiff pattern for Java matches declarations of
classes, enums, and interfaces.  The regular expression requires at
least one whitespace character after the name of the declared type.
This disallows matching for opening angle bracket of type parameters
immediately after the name of the type.  Mandatory whitespace after the
name of the type also disallows using the pattern in repositories with a
fairly common code style that puts braces for the body of a class on
separate lines:

    class WithLineBreakBeforeOpeningBrace
    {
    }

Support matching Java code in more diverse code styles and declarations
of classes and interfaces with type parameters immediately following the
name of the type in the builtin userdiff pattern for Java.  Do so by
just matching anything until the end of the line after the keywords for
the kind of type being declared.

[1] Since Java 5 released in 2004.
[2] Detailed description is available in the Java Language
    Specification, sections "Type Variables" and "Parameterized Types":
    https://docs.oracle.com/javase/specs/jls/se17/html/jls-4.html#jls-4.4

Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Reviewed-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-08 12:56:57 -08:00
Emily Shaffer
0414b3891c hook: support a --to-stdin=<path> option
Expose the "path_to_stdin" API added in the preceding commit in the
"git hook run" command.

For now we won't be using this command interface outside of the tests,
but exposing this functionality makes it easier to test the hook
API. The plan is to use this to extend the "sendemail-validate"
hook[1][2].

1. https://lore.kernel.org/git/ad152e25-4061-9955-d3e6-a2c8b1bd24e7@amd.com
2. https://lore.kernel.org/git/20230120012459.920932-1-michael.strawbridge@amd.com

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-08 12:50:03 -08:00
Emily Shaffer
96af564d27 sequencer: use the new hook API for the simpler "post-rewrite" call
Change the invocation of the "post-rewrite" hook added in
795160457d (sequencer (rebase -i): run the post-rewrite hook, if
needed, 2017-01-02) to use the new hook API.

This leaves the more complex "post-rewrite" invocation added in
a87a6f3c98 (commit: move post-rewrite code to libgit, 2017-11-17)
here in sequencer.c unconverted.

Here we can pass in a file's via the "in" file descriptor, in that
case we don't have a file, but will need to write_in_full() to an "in"
provide by the API. Support for that will be added to the hook API in
the future, but we're not there yet.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-08 12:50:03 -08:00
Emily Shaffer
917e080249 hook API: support passing stdin to hooks, convert am's 'post-rewrite'
Convert the invocation of the 'post-rewrite' hook run by 'git am' to
use the hook.h library. To do this we need to add a "path_to_stdin"
member to "struct run_hooks_opt".

In our API this is supported by asking for a file path, rather
than by reading stdin. Reading directly from stdin would involve caching
the entire stdin (to memory or to disk) once the hook API is made to
support "jobs" larger than 1, along with support for executing N hooks
at a time (i.e. the upcoming config-based hooks).

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-08 12:50:03 -08:00
Emily Shaffer
540267304d run-command: allow stdin for run_processes_parallel
While it makes sense not to inherit stdin from the parent process to
avoid deadlocking, it's not necessary to completely ban stdin to
children. An informed user should be able to configure stdin safely. By
setting `some_child.process.no_stdin=1` before calling `get_next_task()`
we provide a reasonable default behavior but enable users to set up
stdin streaming for themselves during the callback.

`some_child.process.stdout_to_stderr`, however, remains unmodifiable by
`get_next_task()` - the rest of the run_processes_parallel() API depends
on child output in stderr.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-08 12:50:03 -08:00
Ævar Arnfjörð Bjarmason
5123e6e7bd run-command.c: remove dead assignment in while-loop
Remove code that's been unused since it was added in
c553c72eed (run-command: add an asynchronous parallel child
processor, 2015-12-15).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-08 12:50:03 -08:00
Junio C Hamano
7876265d61 The fourteenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-08 09:14:51 -08:00
Junio C Hamano
3fe6612d4c Merge branch 'ds/scalar-ignore-cron-error'
Allow "scalar" to warn but continue when its periodic maintenance
feature cannot be enabled.

* ds/scalar-ignore-cron-error:
  scalar: only warn when background maintenance fails
  t921*: test scalar behavior starting maintenance
  t: allow 'scalar' in test_must_fail
2023-02-08 09:14:42 -08:00
Junio C Hamano
c6dea59323 Merge branch 'mh/doc-credential-cache-only-in-core'
Documentation clarification.

* mh/doc-credential-cache-only-in-core:
  Documentation: clarify that cache forgets credentials if the system restarts
2023-02-08 09:14:42 -08:00
Junio C Hamano
ad7fd3cc03 Merge branch 'gm/request-pull-with-non-pgp-signed-tags'
Adjust "git request-pull" to strip embedded signature from signed
tags to notice non-PGP signatures.

* gm/request-pull-with-non-pgp-signed-tags:
  request-pull: filter out SSH/X.509 tag signatures
2023-02-08 09:14:42 -08:00
Calvin Wan
d390e08076 Documentation: clarify multiple pushurls vs urls
In a remote with multiple configured URLs, `git remote -v` shows the
correct url that fetch uses. However, `git config remote.<remote>.url`
returns the last defined url instead. This discrepancy can cause
confusion for users with a remote defined as such, since any url
defined after the first essentially acts as a pushurl.

Add documentation to clarify how fetch interacts with multiple urls
and how push interacts with multiple pushurls and urls.

Add test affirming interaction between fetch and multiple urls.

Signed-off-by: Calvin Wan <calvinwan@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-07 11:02:27 -08:00
Ævar Arnfjörð Bjarmason
3eb1e1ca9a config.h: remove unused git_configset_add_parameters()
This function was removed in ecec57b3c9 (config: respect includes in
protected config, 2022-10-13), but its prototype was left here.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-07 10:50:27 -08:00
Ævar Arnfjörð Bjarmason
0c10ed19c4 commit.c: free() revs.commit in get_fork_point()
Fix a memory leak that's been with us since d96855ff51 (merge-base:
teach "--fork-point" mode, 2013-10-23).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 16:03:53 -08:00
Ævar Arnfjörð Bjarmason
a535040887 builtin/rebase.c: free() "options.strategy_opts"
When the "strategy_opts" member was added in ba1905a5fe (builtin
rebase: add support for custom merge strategies, 2018-09-04) the
corresponding free() for it at the end of cmd_rebase() wasn't added,
let's do so.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 16:03:53 -08:00
Ævar Arnfjörð Bjarmason
a5792e9d09 sequencer.c: always free() the "msgbuf" in do_pick_commit()
In [1] the strbuf_release(&msgbuf) was moved into this
do_pick_commit(), but didn't take into account the case of [2], where
we'd return before the strbuf_release(&msgbuf).

Then when the "fixup" support was added in [3] this leak got worse, as
in this error case we added another place where we'd "return" before
reaching the strbuf_release().

This changes the behavior so that we'll call
update_abort_safety_file() in these cases where we'd previously
"return", but as noted in [4] "update_abort_safety_file() is a no-op
when rebasing and you're changing code that is only run when
rebasing.". Here "no-op" refers to the early return in
update_abort_safety_file() if git_path_seq_dir() doesn't exist.

1. 452202c74b (sequencer: stop releasing the strbuf in
   write_message(), 2016-10-21)
2. f241ff0d0a (prepare the builtins for a libified merge_recursive(),
   2016-07-26)
3. 6e98de72c0 (sequencer (rebase -i): add support for the 'fixup' and
   'squash' commands, 2017-01-02)
4. https://lore.kernel.org/git/bcace50b-a4c3-c468-94a3-4fe0c62b3671@dunelm.org.uk/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 16:03:52 -08:00
Ævar Arnfjörð Bjarmason
94ad545d47 builtin/rebase.c: fix "options.onto_name" leak
Similar to the existing "squash_onto_name" added in [1] we need to
free() the xstrdup()'d "options.onto.name" added for "--keep-base" in
[2]..

1. 9dba809a69 (builtin rebase: support --root, 2018-09-04)
2. 414d924beb (rebase: teach rebase --keep-base, 2019-08-27)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 16:03:52 -08:00
Ævar Arnfjörð Bjarmason
a6a700a43c builtin/revert.c: move free-ing of "revs" to replay_opts_release()
In [1] and [2] I added the code being moved here to cmd_revert() and
cmd_cherry_pick(), now that we've got a "replay_opts_release()" for
the "struct replay_opts" it should know how to free these "revs",
rather than having these users reach into the struct to free its
individual members.

1. d1ec656d68 (cherry-pick: free "struct replay_opts" members,
   2022-11-08)
2. fd74ac95ac (revert: free "struct replay_opts" members, 2022-07-01)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 16:03:52 -08:00
Ævar Arnfjörð Bjarmason
9ff2f06069 sequencer API users: fix get_replay_opts() leaks
Make the replay_opts_release() function added in the preceding commit
non-static, and use it for freeing the "struct replay_opts"
constructed for "rebase" and "revert".

To safely call our new replay_opts_release() we'll need to stop
calling it in sequencer_remove_state(), and instead call it where we
allocate the "struct replay_opts" itself.

This is because in e.g. do_interactive_rebase() we construct a "struct
replay_opts" with "get_replay_opts()", and then call
"complete_action()". If we get far enough in that function without
encountering errors we'll call "pick_commits()" which (indirectly)
calls sequencer_remove_state() at the end.

But if we encounter errors anywhere along the way we'd punt out early,
and not free() the memory we allocated. Remembering whether we
previously called sequencer_remove_state() would be a hassle.

Using a FREE_AND_NULL() pattern would also work, as it would be safe
to call replay_opts_release() repeatedly. But let's fix this properly
instead, by having the owner of the data free() it.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 16:03:52 -08:00
Ævar Arnfjörð Bjarmason
6a09c3a9a6 sequencer.c: split up sequencer_remove_state()
Split off the free()-ing in sequencer_remove_state() into a utility
function, which will be adjusted and called independent of the other
code in sequencer_remove_state() in a subsequent commit.

The only functional change here is changing the "int" to a "size_t",
which is the correct type, as "xopts_nr" is a "size_t".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 16:03:52 -08:00
Ævar Arnfjörð Bjarmason
01fd5fb14b rebase: use "cleanup" pattern in do_interactive_rebase()
Use a "goto cleanup" pattern in do_interactive_rebase(). This
eliminates some duplicated free() code added in 53bbcfbde7 (rebase
-i: implement the main part of interactive rebase as a builtin,
2018-09-27), and sets us up for a subsequent commit which'll make
further use of the "cleanup" label.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 16:03:52 -08:00
Ævar Arnfjörð Bjarmason
c65d18cb52 push: free_refs() the "local_refs" in set_refspecs()
Fix a memory leak that's been with us since this code was added in
ca02465b41 (push: use remote.$name.push as a refmap, 2013-12-03).

The "remote = remote_get(...)" added in the same commit would seem to
leak based only on the context here, but that function is a wrapper
for sticking the remotes we fetch into "the_repository->remote_state".

See fd3cb0501e (remote: move static variables into per-repository
struct, 2021-11-17) for the addition of code in repository.c that
free's the "remote" allocated here.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:40 -08:00
Ævar Arnfjörð Bjarmason
aa561208d9 push: refactor refspec_append_mapped() for subsequent leak-fix
The set_refspecs() caller of refspec_append_mapped() (added in [1])
left open the question[2] of whether the "remote" we lazily fetch
might be NULL in the "[...]uniquely name our ref?" case, as
remote_get() can return NULL.

If we got past the "[...]uniquely name our ref?" case we'd have
already segfaulted if we tried to dereference it as
"remote->push.nr". In these cases the config mechanism & previous
remote validation will have bailed out earlier.

Let's refactor this code to clarify that, we'll now BUG() out if we
can't get a "remote", and will no longer retrieve it for these common
cases where we don't need it.

1. ca02465b41 (push: use remote.$name.push as a refmap, 2013-12-03)
2. https://lore.kernel.org/git/c0c07b89-7eaf-21cd-748e-e14ea57f09fd@web.de/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:40 -08:00
Ævar Arnfjörð Bjarmason
1fdd31cf52 receive-pack: release the linked "struct command *" list
Fix a memory leak that's been with us since this code was introduced
in [1]. Later in [2] we started using FLEX_ALLOC_MEM() to allocate the
"struct command *".

1. 575f497456 (Add first cut at "git-receive-pack", 2005-06-29)
2. eb1af2df0b (git-receive-pack: start parsing ref update commands,
   2005-06-29)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:40 -08:00
Ævar Arnfjörð Bjarmason
fb2ebe72a3 grep API: plug memory leaks by freeing "header_list"
When the "header_list" struct member was added in [1], freeing this
field was neglected. Fix that now, so that commands like

	./git -P log -1 --color=always --author=A origin/master

will run leak-free.

1. 80235ba79e ("log --author=me --grep=it" should find intersection,
   not union, 2010-01-17)

Helped-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:39 -08:00
Ævar Arnfjörð Bjarmason
891c9965fb grep.c: refactor free_grep_patterns()
Refactor the free_grep_patterns() function to split out the freeing of
the "struct grep_pat" it contains. Right now we're only freeing the
"pattern_list", but we should be freeing another member of the same
type, which we'll do in the subsequent commit.

Let's also replace the "return" if we don't have an
"opt->pattern_expression" with a conditional call of
free_pattern_expr().

Before db84376f98 (grep.c: remove "extended" in favor of
"pattern_expression", fix segfault, 2022-10-11) the pattern here was:

	if (!x)
		return;
	free_pattern_expr(y);

While at it, instead of:

	if (!x)
		return;
	free_pattern_expr(x);

Let's instead do:

	if (x)
		free_pattern_expr(x);

This will make it easier to free additional members from
free_grep_patterns() in the future.

Helped-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:39 -08:00
Ævar Arnfjörð Bjarmason
41211db10f builtin/merge.c: free "&buf" on "Your local changes..." error
Plug a memory leak introduced in [1], since that change didn't follow
the "goto done" pattern introduced in [2] we'd leak the "&buf" memory.

1. e4cdfe84a0 (merge: abort if index does not match HEAD for trivial
   merges, 2022-07-23)
2. d5a35c114a (Copy resolve_ref() return value for longer use,
   2011-11-13)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:39 -08:00