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11005 commits

Author SHA1 Message Date
Junio C Hamano
1f071460d3 Merge branch 'rs/ls-tree-path-expansion-fix' into maint-2.39
"git ls-tree --format='%(path) %(path)' $tree $path" showed the
path three times, which has been corrected.

* rs/ls-tree-path-expansion-fix:
  ls-tree: remove dead store and strbuf for quote_c_style()
  ls-tree: fix expansion of repeated %(path)
2023-02-14 14:15:52 -08:00
Junio C Hamano
7cbfd0e572 Merge branch 'ab/bundle-wo-args' into maint-2.39
Fix to a small regression in 2.38 days.

* ab/bundle-wo-args:
  bundle <cmd>: have usage_msg_opt() note the missing "<file>"
  builtin/bundle.c: remove superfluous "newargc" variable
  bundle: don't segfault on "git bundle <subcmd>"
2023-02-14 14:15:50 -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
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
fd2d4c135e gpg-interface: lazily initialize and read the configuration
Instead of forcing the porcelain commands to always read the
configuration variables related to the signing and verifying
signatures, lazily initialize the necessary subsystem on demand upon
the first use.

This hopefully would make it more future-proof as we do not have to
think and decide whether we should call git_gpg_config() in the
git_config() callback for each command.

A few git_config() callback functions that used to be custom
callbacks are now just a thin wrapper around git_default_config().
We could further remove, git_FOO_config and replace calls to
git_config(git_FOO_config) with git_config(git_default_config), but
to make it clear which ones are affected and the effect is only the
removal of git_gpg_config(), it is vastly preferred not to do such a
change in this step (they can be done on top once the dust settled).

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-09 17:01:27 -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
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
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
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
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
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
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
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
Ævar Arnfjörð Bjarmason
345e216f63 builtin/merge.c: use fixed strings, not "strbuf", fix leak
Follow-up 465028e0e2 (merge: add missing strbuf_release(),
2021-10-07) and address the "msg" memory leak in this block. We could
free "&msg" before the "goto done" here, but even better is to avoid
allocating it in the first place.

By repeating the "Fast-forward" string here we can avoid using a
"struct strbuf" altogether.

Suggested-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:39 -08:00
Ævar Arnfjörð Bjarmason
81559612a9 show-branch: free() allocated "head" before return
Stop leaking the "head" variable, which we've been leaking since it
was originally added in [1], and in its current form since [2]

1. ed378ec7e8 (Make ref resolution saner, 2006-09-11)
2. d9e557a320 (show-branch: store resolved head in heap buffer,
   2017-02-14).

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
9d01cfed69 commit-graph: fix a parse_options_concat() leak
When the parse_options_concat() was added to this file in
84e4484f12 (commit-graph: use parse_options_concat(), 2021-08-23) we
wouldn't free() it if we returned early in these cases.

Since "result" is 0 by default we can "goto cleanup" in both cases,
and only need to set "result" if write_commit_graph_reachable() fails.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:38 -08:00
Ævar Arnfjörð Bjarmason
9f24f3c719 worktree: fix a trivial leak in prune_worktrees()
We were leaking both the "struct strbuf" in prune_worktrees(), as well
as the "path" we got from should_prune_worktree(). Since these were
the only two uses of the "struct string_list" let's change it to a
"DUP" and push these to it with "string_list_append_nodup()".

For the string_list_append_nodup() we could also string_list_append()
the main_path.buf, and then strbuf_release(&main_path) right away. But
doing it this way avoids an allocation, as we already have the "struct
strbuf" prepared for appending to "kept".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:38 -08:00
Ævar Arnfjörð Bjarmason
90428ddccf repack: fix leaks on error with "goto cleanup"
In cmd_repack() when we hit an error, replace "return ret" with "goto
cleanup" to ensure we free the necessary data structures.

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 15:34:37 -08:00
Ævar Arnfjörð Bjarmason
486620ae0c name-rev: don't xstrdup() an already dup'd string
When "add_to_tip_table()" is called with a non-zero
"shorten_unambiguous" we always return an xstrdup()'d string, which
we'd then xstrdup() again, leaking memory. See [1] and [2] for how
this leak came about.

We could xstrdup() only if "shorten_unambiguous" wasn't true, but
let's instead inline this code, so that information on whether we need
to xstrdup() is contained within add_to_tip_table().

1. 98c5c4ad01 (name-rev: allow to specify a subpath for --refs
   option, 2013-06-18)
2. b23e0b9353 (name-rev: allow converting the exact object name at
   the tip of a ref, 2013-07-07)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:37 -08:00
Ævar Arnfjörð Bjarmason
7615cf94d2 various: add missing clear_pathspec(), fix leaks
Fix memory leaks resulting from a missing clear_pathspec().

- archive.c: Plug a leak in the "struct archiver_args", and
  clear_pathspec() the "pathspec" member that the "parse_pathspec_arg()"
  call in this function populates.

- builtin/clean.c: Fix a memory leak that's been with us since
  893d839970 (clean: convert to use parse_pathspec, 2013-07-14).

- builtin/reset.c: Add clear_pathspec() calls to cmd_reset(),
  including to the codepaths where we'd return early.

- builtin/stash.c: Call clear_pathspec() on the pathspec initialized
  in push_stash().

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:37 -08:00
Ævar Arnfjörð Bjarmason
81e5c39cf6 clone: use free() instead of UNLEAK()
Change an UNLEAK() added in 0c4542738e (clone: free or UNLEAK further
pointers when finished, 2021-03-14) to use a "to_free" pattern
instead. In this case the "repo" can be either this absolute_pathdup()
value, or in the "else if" branch seen in the context the the
"argv[0]" argument to "main()".

We can only free() the value in the former case, hence the "to_free"
pattern.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:37 -08:00
Ævar Arnfjörð Bjarmason
e8ed0a8ac5 commit-graph: use free_commit_graph() instead of UNLEAK()
In 0bfb48e672 (builtin/commit-graph.c: UNLEAK variables, 2018-10-03)
this was made to UNLEAK(), but we can just as easily invoke the
free_commit_graph() function added in c3756d5b7f (commit-graph: add
free_commit_graph, 2018-07-11) instead.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:34:36 -08:00
Ævar Arnfjörð Bjarmason
5a7d41d849 docs & comments: replace mentions of "git-add--interactive.perl"
Now that we've removed "git-add--interactive.perl" let's replace
mentions of it with "add-interactive.c". In the case of the "git add"
documentation we were using it as an example filename, so the mention
wasn't wrong, but using a dead file is slightly confusing.

The "borrowed" comment here likewise isn't wrong, but let's mention
the successor file instead. In the case of pathspec.c the implied TODO
item should refer to the current code (and the comment may not even be
current, I didn't check).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:03:34 -08:00
Ævar Arnfjörð Bjarmason
d21878f073 add API: remove run_add_interactive() wrapper function
Now that the Perl "git-add--interactive" has gone away in the
preceding commit we don't need to pass along our desire for a mode as
a string, and can instead directly use the "enum add_p_mode", see
d2a233cb8b (built-in add -p: prepare for patch modes other than
"stage", 2019-12-21) for its introduction.

As a result of that the run_add_interactive() function would become a
trivial wrapper which would only run run_add_i() if a 0 (or now,
"NULL") "patch_mode" was provided. Let's instead remove it, and have
the one callsite that wanted the "NULL" case (interactive_add())
handle it.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:03:34 -08:00
Ævar Arnfjörð Bjarmason
20b813d7d3 add: remove "add.interactive.useBuiltin" & Perl "git add--interactive"
Since [1] first released with Git v2.37.0 the built-in version of "add
-i" has been the default. That built-in implementation was added in
[2], first released with Git v2.25.0.

At this point enough time has passed to allow for finding any
remaining bugs in this new implementation, so let's remove the
fallback code.

As with similar migrations for "stash"[3] and "rebase"[4] we're
keeping a mention of "add.interactive.useBuiltin" in the
documentation, but adding a warning() to notify any outstanding users
that the built-in is now the default. As with [5] and [6] we should
follow-up in the future and eventually remove that warning.

1. 0527ccb1b5 (add -i: default to the built-in implementation,
   2021-11-30)
2. f83dff60a7 (Start to implement a built-in version of `git add
   --interactive`, 2019-11-13)
3. 8a2cd3f512 (stash: remove the stash.useBuiltin setting,
   2020-03-03)
4. d03ebd411c (rebase: remove the rebase.useBuiltin setting,
   2019-03-18)
5. deeaf5ee07 (stash: remove documentation for `stash.useBuiltin`,
   2022-01-27)
6. 9bcde4d531 (rebase: remove transitory rebase.useBuiltin setting &
   env, 2021-03-23)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 15:03:34 -08:00
René Scharfe
e65b868d07 pack-objects: use strcspn(3) in name_cmp_len()
Call strcspn(3) to find the length of a string terminated by NUL, NL or
slash instead of open-coding it.  Adopt its return type, size_t, to
support strings of arbitrary length.  Use that type in callers as well
for variables and function parameters that receive the return value.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 14:31:11 -08:00
Johannes Schindelin
3aef76ffd4 Sync with 2.38.4
* maint-2.38:
  Git 2.38.4
  Git 2.37.6
  Git 2.36.5
  Git 2.35.7
  Git 2.34.7
  http: support CURLOPT_PROTOCOLS_STR
  http: prefer CURLOPT_SEEKFUNCTION to CURLOPT_IOCTLFUNCTION
  http-push: prefer CURLOPT_UPLOAD to CURLOPT_PUT
  Git 2.33.7
  Git 2.32.6
  Git 2.31.7
  Git 2.30.8
  apply: fix writing behind newly created symbolic links
  dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS
  clone: delay picking a transport until after get_repo_path()
  t5619: demonstrate clone_local() with ambiguous transport
2023-02-06 09:43:39 +01:00
Johannes Schindelin
6487e9c459 Sync with 2.37.6
* maint-2.37:
  Git 2.37.6
  Git 2.36.5
  Git 2.35.7
  Git 2.34.7
  http: support CURLOPT_PROTOCOLS_STR
  http: prefer CURLOPT_SEEKFUNCTION to CURLOPT_IOCTLFUNCTION
  http-push: prefer CURLOPT_UPLOAD to CURLOPT_PUT
  Git 2.33.7
  Git 2.32.6
  Git 2.31.7
  Git 2.30.8
  apply: fix writing behind newly created symbolic links
  dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS
  clone: delay picking a transport until after get_repo_path()
  t5619: demonstrate clone_local() with ambiguous transport
2023-02-06 09:43:28 +01:00
Johannes Schindelin
16004682f9 Sync with 2.36.5
* maint-2.36:
  Git 2.36.5
  Git 2.35.7
  Git 2.34.7
  http: support CURLOPT_PROTOCOLS_STR
  http: prefer CURLOPT_SEEKFUNCTION to CURLOPT_IOCTLFUNCTION
  http-push: prefer CURLOPT_UPLOAD to CURLOPT_PUT
  Git 2.33.7
  Git 2.32.6
  Git 2.31.7
  Git 2.30.8
  apply: fix writing behind newly created symbolic links
  dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS
  clone: delay picking a transport until after get_repo_path()
  t5619: demonstrate clone_local() with ambiguous transport
2023-02-06 09:38:31 +01:00
Johannes Schindelin
40843216c5 Sync with 2.35.7
* maint-2.35:
  Git 2.35.7
  Git 2.34.7
  http: support CURLOPT_PROTOCOLS_STR
  http: prefer CURLOPT_SEEKFUNCTION to CURLOPT_IOCTLFUNCTION
  http-push: prefer CURLOPT_UPLOAD to CURLOPT_PUT
  Git 2.33.7
  Git 2.32.6
  Git 2.31.7
  Git 2.30.8
  apply: fix writing behind newly created symbolic links
  dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS
  clone: delay picking a transport until after get_repo_path()
  t5619: demonstrate clone_local() with ambiguous transport
2023-02-06 09:37:52 +01:00
Johannes Schindelin
6a53a59bf9 Sync with 2.34.7
* maint-2.34:
  Git 2.34.7
  http: support CURLOPT_PROTOCOLS_STR
  http: prefer CURLOPT_SEEKFUNCTION to CURLOPT_IOCTLFUNCTION
  http-push: prefer CURLOPT_UPLOAD to CURLOPT_PUT
  Git 2.33.7
  Git 2.32.6
  Git 2.31.7
  Git 2.30.8
  apply: fix writing behind newly created symbolic links
  dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS
  clone: delay picking a transport until after get_repo_path()
  t5619: demonstrate clone_local() with ambiguous transport
2023-02-06 09:29:44 +01:00
Johannes Schindelin
a7237f5ae9 Sync with 2.33.7
* maint-2.33:
  Git 2.33.7
  Git 2.32.6
  Git 2.31.7
  Git 2.30.8
  apply: fix writing behind newly created symbolic links
  dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS
  clone: delay picking a transport until after get_repo_path()
  t5619: demonstrate clone_local() with ambiguous transport
2023-02-06 09:29:16 +01:00
Johannes Schindelin
87248c5933 Sync with 2.32.6
* maint-2.32:
  Git 2.32.6
  Git 2.31.7
  Git 2.30.8
  apply: fix writing behind newly created symbolic links
  dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS
  clone: delay picking a transport until after get_repo_path()
  t5619: demonstrate clone_local() with ambiguous transport
2023-02-06 09:25:56 +01:00
Johannes Schindelin
aeb93d7da2 Sync with 2.31.7
* maint-2.31:
  Git 2.31.7
  Git 2.30.8
  apply: fix writing behind newly created symbolic links
  dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS
  clone: delay picking a transport until after get_repo_path()
  t5619: demonstrate clone_local() with ambiguous transport
2023-02-06 09:25:08 +01:00
Johannes Schindelin
e14d6b8408 Sync with 2.30.8
* maint-2.30:
  Git 2.30.8
  apply: fix writing behind newly created symbolic links
  dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS
  clone: delay picking a transport until after get_repo_path()
  t5619: demonstrate clone_local() with ambiguous transport
2023-02-06 09:24:06 +01:00
Eric Wong
647982bb71 delta-islands: free island_marks and bitmaps
On my mirror of linux.git forkgroup with 780 islands, this saves
nearly 4G of heap memory in pack-objects.  This savings only
benefits delta island users of pack bitmaps, as the process
would otherwise be exiting anyways.

However, there's probably not many delta island users, but the
majority of delta island users would also be pack bitmaps users.

Signed-off-by: Eric Wong <e@80x24.org>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-03 18:01:46 -08:00
Junio C Hamano
2c6e5b32aa Merge branch 'en/rebase-incompatible-opts'
"git rebase" often ignored incompatible options instead of
complaining, which has been corrected.

* en/rebase-incompatible-opts:
  rebase: provide better error message for apply options vs. merge config
  rebase: put rebase_options initialization in single place
  rebase: fix formatting of rebase --reapply-cherry-picks option in docs
  rebase: clarify the OPT_CMDMODE incompatibilities
  rebase: add coverage of other incompatible options
  rebase: fix incompatiblity checks for --[no-]reapply-cherry-picks
  rebase: fix docs about incompatibilities with --root
  rebase: remove --allow-empty-message from incompatible opts
  rebase: flag --apply and --merge as incompatible
  rebase: mark --update-refs as requiring the merge backend
2023-02-03 16:08:21 -08:00
Derrick Stolee
7f0cc04f2c fetch: fetch from an external bundle URI
When a user specifies a URI via 'git clone --bundle-uri', that URI may
be a bundle list that advertises a 'bundle.heuristic' value. In that
case, the Git client stores a 'fetch.bundleURI' config value storing
that URI.

Teach 'git fetch' to check for this config value and download bundles
from that URI before fetching from the Git remote(s). Likely, the bundle
provider has configured a heuristic (such as "creationToken") that will
allow the Git client to download only a portion of the bundles before
continuing the fetch.

Since this URI is completely independent of the remote server, we want
to be sure that we connect to the bundle URI before creating a
connection to the Git remote. We do not want to hold a stateful
connection for too long if we can avoid it.

To test that this works correctly, extend the previous tests that set
'fetch.bundleURI' to do follow-up fetches. The bundle list is updated
incrementally at each phase to demonstrate that the heuristic avoids
downloading older bundles. This includes the middle fetch downloading
the objects in bundle-3.bundle from the Git remote, and therefore not
needing that bundle in the third fetch.

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-31 08:57:48 -08:00
Derrick Stolee
4074d3c7e1 clone: set fetch.bundleURI if appropriate
Bundle providers may organize their bundle lists in a way that is
intended to improve incremental fetches, not just initial clones.
However, they do need to state that they have organized with that in
mind, or else the client will not expect to save time by downloading
bundles after the initial clone. This is done by specifying a
bundle.heuristic value.

There are two types of bundle lists: those at a static URI and those
that are advertised from a Git remote over protocol v2.

The new fetch.bundleURI config value applies for static bundle URIs that
are not advertised over protocol v2. If the user specifies a static URI
via 'git clone --bundle-uri', then Git can set this config as a reminder
for future 'git fetch' operations to check the bundle list before
connecting to the remote(s).

For lists provided over protocol v2, we will want to take a different
approach and create a property of the remote itself by creating a
remote.<id>.* type config key. That is not implemented in this change.

Later changes will update 'git fetch' to consume this option.

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-31 08:57:48 -08:00
Junio C Hamano
d26e26a3f5 Merge branch 'cw/fetch-remote-group-with-duplication'
"git fetch <group>", when "<group>" of remotes lists the same
remote twice, unnecessarily failed when parallel fetching was
enabled, which has been corrected.

* cw/fetch-remote-group-with-duplication:
  fetch: fix duplicate remote parallel fetch bug
2023-01-27 08:51:41 -08:00
Junio C Hamano
630ae5ee65 Merge branch 'jk/hash-object-literally-fd-leak'
Leakfix.

* jk/hash-object-literally-fd-leak:
  hash-object: fix descriptor leak with --literally
2023-01-27 08:51:41 -08:00
Junio C Hamano
ce400c9da9 Merge branch 'ab/cache-api-cleanup-users'
Updates the users of the cache API.

* ab/cache-api-cleanup-users:
  treewide: always have a valid "index_state.repo" member
2023-01-27 08:51:39 -08:00
Elijah Newren
eddfcd8ece rebase: provide better error message for apply options vs. merge config
When config which selects the merge backend (currently,
rebase.autosquash=true or rebase.updateRefs=true) conflicts with other
options on the command line (such as --whitespace=fix), make the error
message specifically call out the config option and specify how to
override that config option on the command line.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-25 09:20:53 -08:00
Elijah Newren
3dc55b2087 rebase: put rebase_options initialization in single place
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-25 09:20:53 -08:00
Elijah Newren
796abac7e1 rebase: add coverage of other incompatible options
The git-rebase manual noted several sets of incompatible options, but
we were missing tests for a few of these.  Further, we were missing
code checks for one of these, which could result in command line
options being silently ignored.

Also, note that adding a check for autosquash means that using
--whitespace=fix together with the config setting rebase.autosquash=true
will trigger an error.  A subsequent commit will improve the error
message.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-25 09:20:53 -08:00
Elijah Newren
ffeaca177a rebase: fix incompatiblity checks for --[no-]reapply-cherry-picks
--[no-]reapply-cherry-picks was traditionally only supported by the
sequencer.  Support was added for the apply backend, when --keep-base is
also specified, in commit ce5238a690 ("rebase --keep-base: imply
--reapply-cherry-picks", 2022-10-17).  Make the code error out when
--[no-]reapply-cherry-picks is specified AND the apply backend is used
AND --keep-base is not specified.  Also, clarify a number of comments
surrounding the interaction of these flags.

Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-25 09:20:53 -08:00
Elijah Newren
7d718c552b rebase: flag --apply and --merge as incompatible
Previously, we flagged options which implied --apply as being
incompatible with options which implied --merge.  But if both options
were given explicitly, then we didn't flag the incompatibility.  The
same is true with --apply and --interactive.  Add the check, and add
some testcases to verify these are also caught.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-25 09:20:52 -08:00
Elijah Newren
1207599e83 rebase: mark --update-refs as requiring the merge backend
--update-refs is built in terms of the sequencer, which requires the
merge backend.  It was already marked as incompatible with the apply
backend in the git-rebase manual, but the code didn't check for this
incompatibility and warn the user.  Check and error now.

While at it, fix a typo in t3422...and fix some misleading wording
(most options which used to be am-specific have since been implemented
in the merge backend as well).

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-25 09:20:52 -08:00
Taylor Blau
cf8f6ce02a clone: delay picking a transport until after get_repo_path()
In the previous commit, t5619 demonstrates an issue where two calls to
`get_repo_path()` could trick Git into using its local clone mechanism
in conjunction with a non-local transport.

That sequence is:

 - the starting state is that the local path https:/example.com/foo is a
   symlink that points to ../../../.git/modules/foo. So it's dangling.

 - get_repo_path() sees that no such path exists (because it's
   dangling), and thus we do not canonicalize it into an absolute path

 - because we're using --separate-git-dir, we create .git/modules/foo.
   Now our symlink is no longer dangling!

 - we pass the url to transport_get(), which sees it as an https URL.

 - we call get_repo_path() again, on the url. This second call was
   introduced by f38aa83f9a (use local cloning if insteadOf makes a
   local URL, 2014-07-17). The idea is that we want to pull the url
   fresh from the remote.c API, because it will apply any aliases.

And of course now it sees that there is a local file, which is a
mismatch with the transport we already selected.

The issue in the above sequence is calling `transport_get()` before
deciding whether or not the repository is indeed local, and not passing
in an absolute path if it is local.

This is reminiscent of a similar bug report in [1], where it was
suggested to perform the `insteadOf` lookup earlier. Taking that
approach may not be as straightforward, since the intent is to store the
original URL in the config, but to actually fetch from the insteadOf
one, so conflating the two early on is a non-starter.

Note: we pass the path returned by `get_repo_path(remote->url[0])`,
which should be the same as `repo_name` (aside from any `insteadOf`
rewrites).

We *could* pass `absolute_pathdup()` of the same argument, which
86521acaca (Bring local clone's origin URL in line with that of a remote
clone, 2008-09-01) indicates may differ depending on the presence of
".git/" for a non-bare repo. That matters for forming relative submodule
paths, but doesn't matter for the second call, since we're just feeding
it to the transport code, which is fine either way.

[1]: https://lore.kernel.org/git/CAMoD=Bi41mB3QRn3JdZL-FGHs4w3C2jGpnJB-CqSndO7FMtfzA@mail.gmail.com/

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-24 16:52:16 -08:00
Junio C Hamano
019a1031ea Merge branch 'jc/format-patch-v-unleak'
Plug a small leak.

* jc/format-patch-v-unleak:
  format-patch: unleak "-v <num>"
2023-01-23 13:39:52 -08:00
Junio C Hamano
cd37c45acf Merge branch 'ab/test-env-helper'
Remove "git env--helper" and demote it to a test-tool subcommand.

* ab/test-env-helper:
  env-helper: move this built-in to "test-tool env-helper"
2023-01-23 13:39:51 -08:00
Junio C Hamano
577bff3a81 Merge branch 'kn/attr-from-tree'
"git check-attr" learned to take an optional tree-ish to read the
.gitattributes file from.

* kn/attr-from-tree:
  attr: add flag `--source` to work with tree-ish
  t0003: move setup for `--all` into new block
2023-01-23 13:39:51 -08:00
Junio C Hamano
8a40af9cab Merge branch 'rs/ls-tree-path-expansion-fix'
"git ls-tree --format='%(path) %(path)' $tree $path" showed the
path three times, which has been corrected.

* rs/ls-tree-path-expansion-fix:
  ls-tree: remove dead store and strbuf for quote_c_style()
  ls-tree: fix expansion of repeated %(path)
2023-01-23 13:39:50 -08:00
Junio C Hamano
8844c1125e Merge branch 'ab/cache-api-cleanup'
Code clean-up to tighten the use of in-core index in the API.

* ab/cache-api-cleanup:
  cache API: add a "INDEX_STATE_INIT" macro/function, add release_index()
  read-cache.c: refactor set_new_index_sparsity() for subsequent commit
  sparse-index API: BUG() out on NULL ensure_full_index()
  sparse-index.c: expand_to_path() can assume non-NULL "istate"
  builtin/difftool.c: { 0 }-initialize rather than using memset()
2023-01-23 13:39:49 -08:00
Rubén Justo
7fb89047cc bisect: fix "reset" when branch is checked out elsewhere
Since 1d0fa89 (checkout: add --ignore-other-wortrees, 2015-01-03) we
have a safety valve in checkout/switch to prevent the same branch from
being checked out simultaneously in multiple worktrees.

If a branch is bisected in a worktree while also being checked out in
another worktree; when the bisection is finished, checking out the
branch back in the current worktree may fail.

Let's teach bisect to use the "--ignore-other-worktrees" flag.

Signed-off-by: Rubén Justo <rjusto@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-22 09:23:11 -08:00
Junio C Hamano
30b4e5c888 Merge branch 'ab/bisect-cleanup'
Code clean-up.

* ab/bisect-cleanup:
  bisect: no longer try to clean up left-over `.git/head-name` files
  bisect: remove Cogito-related code
  bisect run: fix the error message
  bisect: verify that a bogus option won't try to start a bisection
  bisect--helper: make the order consistently `argc, argv`
  bisect--helper: simplify exit code computation
2023-01-21 17:22:01 -08:00
Junio C Hamano
38a49aba90 Merge branch 'tl/ls-tree-code-clean-up'
Code clean-up.

* tl/ls-tree-code-clean-up:
  t3104: remove shift code in 'test_ls_tree_format'
  ls-tree: cleanup the redundant SPACE
  ls-tree: make "line_termination" less generic
  ls-tree: fold "show_tree_data" into "cb" struct
  ls-tree: use a "struct options"
  ls-tree: don't use "show_tree_data" for "fast" callbacks
2023-01-21 17:22:00 -08:00
Junio C Hamano
e28d5d2160 Merge branch 'pw/rebase-exec-cleanup'
Code clean-up.

* pw/rebase-exec-cleanup:
  rebase: cleanup "--exec" option handling
2023-01-21 17:22:00 -08:00
Junio C Hamano
df786f6efe Merge branch 'sk/merge-filtering-strategies-micro-optim'
Micro optimization.

* sk/merge-filtering-strategies-micro-optim:
  merge: break out of all_strategy loop when strategy is found
2023-01-21 17:21:59 -08:00
Junio C Hamano
60ce816cb6 Merge branch 'rs/dup-array'
Code cleaning.

* rs/dup-array:
  use DUP_ARRAY
  add DUP_ARRAY
  do full type check in BARF_UNLESS_COPYABLE
  factor out BARF_UNLESS_COPYABLE
  mingw: make argv2 in try_shell_exec() non-const
2023-01-21 17:21:58 -08:00
Calvin Wan
06a668cb90 fetch: fix duplicate remote parallel fetch bug
Fetching in parallel from a remote group with a duplicated remote results
in the following:

error: cannot lock ref '<ref>': is at <oid> but expected <oid>

This doesn't happen in serial since fetching from the same remote that
has already been fetched from is a noop. Therefore, remove any duplicated
remotes after remote groups are parsed.

Signed-off-by: Calvin Wan <calvinwan@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-19 14:41:48 -08:00
Jeff King
590b636737 hash-object: fix descriptor leak with --literally
In hash_object(), we open a descriptor for each file to hash (whether we
got the filename from the command line or --stdin-paths), but never
close it. For the traditional code path, which feeds the result to
index_fd(), this is OK; it closes the descriptor for us.

But 5ba9a93b39 (hash-object: add --literally option, 2014-09-11) added a
second code path, which does not close the descriptor. There we need to
do so ourselves.

You can see the problem in a clone of git.git like this:

  $ git ls-files -s | grep ^100644 | cut -f2 |
    git hash-object --stdin-paths --literally >/dev/null
  fatal: could not open 'builtin/var.c' for reading: Too many open files

After this patch, it completes successfully. I didn't bother with a
test, as it's a pain to deal with descriptor limits portably, and the
fix is so trivial.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-19 08:24:21 -08:00
Ævar Arnfjörð Bjarmason
6269f8eaad treewide: always have a valid "index_state.repo" member
When the "repo" member was added to "the_index" in [1] the
repo_read_index() was made to populate it, but the unpopulated
"the_index" variable didn't get the same treatment.

Let's do that in initialize_the_repository() when we set it up, and
likewise for all of the current callers initialized an empty "struct
index_state".

This simplifies code that needs to deal with "the_index" or a custom
"struct index_state", we no longer need to second-guess this part of
the "index_state" deep in the stack. A recent example of such
second-guessing is the "istate->repo ? istate->repo : the_repository"
code in [2]. We can now simply use "istate->repo".

We're doing this by making use of the INDEX_STATE_INIT() macro (and
corresponding function) added in [3], which now have mandatory "repo"
arguments.

Because we now call index_state_init() in repository.c's
initialize_the_repository() we don't need to handle the case where we
have a "repo->index" whose "repo" member doesn't match the "repo"
we're setting up, i.e. the "Complete the double-reference" code in
repo_read_index() being altered here. That logic was originally added
in [1], and was working around the lack of what we now have in
initialize_the_repository().

For "fsmonitor-settings.c" we can remove the initialization of a NULL
"r" argument to "the_repository". This was added back in [4], and was
needed at the time for callers that would pass us the "r" from an
"istate->repo". Before this change such a change to
"fsmonitor-settings.c" would segfault all over the test suite (e.g. in
t0002-gitfile.sh).

This change has wider eventual implications for
"fsmonitor-settings.c". The reason the other lazy loading behavior in
it is required (starting with "if (!r->settings.fsmonitor) ..." is
because of the previously passed "r" being "NULL".

I have other local changes on top of this which move its configuration
reading to "prepare_repo_settings()" in "repo-settings.c", as we could
now start to rely on it being called for our "r". But let's leave all
of that for now, and narrowly remove this particular part of the
lazy-loading.

1. 1fd9ae517c (repository: add repo reference to index_state,
   2021-01-23)
2. ee1f0c242e (read-cache: add index.skipHash config option,
   2023-01-06)
3. 2f6b1eb794 (cache API: add a "INDEX_STATE_INIT" macro/function,
   add release_index(), 2023-01-12)
4. 1e0ea5c431 (fsmonitor: config settings are repository-specific,
   2022-03-25)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-17 14:32:06 -08:00
Junio C Hamano
73f69f22e5 Merge branch 'ab/cache-api-cleanup' into ab/cache-api-cleanup-users
* ab/cache-api-cleanup:
  cache API: add a "INDEX_STATE_INIT" macro/function, add release_index()
  read-cache.c: refactor set_new_index_sparsity() for subsequent commit
  sparse-index API: BUG() out on NULL ensure_full_index()
  sparse-index.c: expand_to_path() can assume non-NULL "istate"
  builtin/difftool.c: { 0 }-initialize rather than using memset()
2023-01-17 14:31:26 -08:00
Junio C Hamano
eaebc89f88 Merge branch 'jk/strncmp-to-api-funcs'
Code clean-up.

* jk/strncmp-to-api-funcs:
  convert trivial uses of strncmp() to skip_prefix()
  convert trivial uses of strncmp() to starts_with()
2023-01-16 12:07:47 -08:00
Junio C Hamano
3ed618f28f Merge branch 'ar/dup-words-fixes'
Typofixes.

* ar/dup-words-fixes:
  *: fix typos which duplicate a word
2023-01-16 12:07:47 -08:00
Junio C Hamano
b242e89dff Merge branch 'tr/am--no-verify'
Conditionally skip the pre-applypatch and applypatch-msg hooks when
applying patches with 'git am'.

* tr/am--no-verify:
  am: allow passing --no-verify flag
2023-01-16 12:07:46 -08:00
Ævar Arnfjörð Bjarmason
2f6b1eb794 cache API: add a "INDEX_STATE_INIT" macro/function, add release_index()
Hopefully in some not so distant future, we'll get advantages from always
initializing the "repo" member of the "struct index_state". To make
that easier let's introduce an initialization macro & function.

The various ad-hoc initialization of the structure can then be changed
over to it, and we can remove the various "0" assignments in
discard_index() in favor of calling index_state_init() at the end.

While not strictly necessary, let's also change the CALLOC_ARRAY() of
various "struct index_state *" to use an ALLOC_ARRAY() followed by
index_state_init() instead.

We're then adding the release_index() function and converting some
callers (including some of these allocations) over to it if they
either won't need to use their "struct index_state" again, or are just
about to call index_state_init().

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-16 10:46:58 -08:00
Junio C Hamano
5b8db44bdd format-patch: unleak "-v <num>"
The "subject_prefix" member of "struct revision" usually is set to a
borrowed string (either a string literal like "PATCH" that appear in
the program text as a hardcoded default, or the value of
"format.subjectprefix") and is never freed when the containing
revision structure is released.  The "-v <num>" codepath however
violates this rule and stores a pointer to an allocated string to
this member, relinquishing the responsibility to free it when it is
done using the revision structure, leading to a small one-time leak.

Instead, keep track of the string it allocates to let the revision
structure borrow, and clean it up when it is done.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-16 10:31:45 -08:00
René Scharfe
c388fcda99 ls-tree: remove dead store and strbuf for quote_c_style()
Stop initializing "name" because it is set again before use.

Let quote_c_style() write directly to "sb" instead of taking a detour
through "quoted".  This avoids an allocation and a string copy.  The
result is the same because the function only appends.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-14 19:22:26 -08:00
René Scharfe
16fb5c54bd ls-tree: fix expansion of repeated %(path)
expand_show_tree() borrows the base strbuf given to us by read_tree() to
build the full path of the current entry when handling %(path).  Only
its indirect caller, show_tree_fmt(), removes the added entry name.
That works fine as long as %(path) is only included once in the format
string, but accumulates duplicates if it's repeated:

   $ git ls-tree --format='%(path) %(path) %(path)' HEAD M*
   Makefile MakefileMakefile MakefileMakefileMakefile

Reset the length after each use to get the same expansion every time;
here's the behavior with this patch:

   $ ./git ls-tree --format='%(path) %(path) %(path)' HEAD M*
   Makefile Makefile Makefile

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-14 19:22:26 -08:00
Ævar Arnfjörð Bjarmason
4a1baacd46 env-helper: move this built-in to "test-tool env-helper"
Since [1] there has been no reason for keeping "git env--helper" a
built-in. The reason it was a built-in to begin with was to support
the GIT_TEST_GETTEXT_POISON mode removed in that commit. I.e. unlike
the rest of "test-tool" it would potentially be called by the
installed git via "git-sh-i18n.sh".

As none of that applies since [1] we should stop carrying this
technical debt, and move it to t/helper/*. As this mostly move-only
change shows this has the nice bonus that we'll stop wasting time
translating the internal-only strings it emits.

Even though this was a built-in, it was intentionally never
documented, see its introduction in [2]. It never saw use outside of
the test suite, except for the "GIT_TEST_GETTEXT_POISON" use-case
noted above.

1. d162b25f95 (tests: remove support for GIT_TEST_GETTEXT_POISON,
   2021-01-20)
2. b4f207f339 (env--helper: new undocumented builtin wrapping
   git_env_*(), 2019-06-21)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-14 18:07:11 -08:00
Karthik Nayak
47cfc9bd7d attr: add flag --source to work with tree-ish
The contents of the .gitattributes files may evolve over time, but "git
check-attr" always checks attributes against them in the working tree
and/or in the index. It may be beneficial to optionally allow the users
to check attributes taken from a commit other than HEAD against paths.

Add a new flag `--source` which will allow users to check the
attributes against a commit (actually any tree-ish would do). When the
user uses this flag, we go through the stack of .gitattributes files but
instead of checking the current working tree and/or in the index, we
check the blobs from the provided tree-ish object. This allows the
command to also be used in bare repositories.

Since we use a tree-ish object, the user can pass "--source
HEAD:subdirectory" and all the attributes will be looked up as if
subdirectory was the root directory of the repository.

We cannot simply use the `<rev>:<path>` syntax without the `--source`
flag, similar to how it is used in `git show` because any non-flag
parameter before `--` is treated as an attribute and any parameter after
`--` is treated as a pathname.

The change involves creating a new function `read_attr_from_blob`, which
given the path reads the blob for the path against the provided source and
parses the attributes line by line. This function is plugged into
`read_attr()` function wherein we go through the stack of attributes
files.

Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Toon Claes <toon@iotcl.com>
Co-authored-by: toon@iotcl.com
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-14 08:49:55 -08:00
Teng Long
925a7c6b6b ls-tree: cleanup the redundant SPACE
An redundant space was found in ls-tree.c, which is no doubt
a small change, but it might be OK to make a commit on its own.

Signed-off-by: Teng Long <dyroneteng@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 15:09:23 -08:00
Ævar Arnfjörð Bjarmason
e6c75d8dd7 ls-tree: make "line_termination" less generic
The "ls-tree" command isn't capable of ending "lines" with anything
except '\n' or '\0', and in the latter case we can avoid calling
write_name_quoted_relative() entirely. Let's do that, less for
optimization and more for clarity, the write_name_quoted_relative()
API itself does much the same thing.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Teng Long <dyroneteng@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 15:09:23 -08:00
Ævar Arnfjörð Bjarmason
65d1f6c9fa ls-tree: fold "show_tree_data" into "cb" struct
After the the preceding two commits the only user of the
"show_tree_data" struct needed it along with the "options" member,
let's instead fold all of that into a "show_tree_data" struct that
we'll use only for that callback.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Teng Long <dyroneteng@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 15:09:23 -08:00
Ævar Arnfjörð Bjarmason
030a3d5d9e ls-tree: use a "struct options"
As a first step towards being able to turn this code into an API some
day let's change the "static" options in builtin/ls-tree.c into a
"struct ls_tree_options" that can be constructed dynamically without
the help of parse_options().

Because we're now using non-static variables for this we'll need to
clear_pathspec() at the end of cmd_ls_tree(), least various tests
start failing under SANITIZE=leak. The memory leak was already there
before, now it's just being brought to the surface.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Teng Long <dyroneteng@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 15:09:22 -08:00
Ævar Arnfjörð Bjarmason
7677417b57 ls-tree: don't use "show_tree_data" for "fast" callbacks
As noted in [1] the code that made it in as part of
9c4d58ff2c (ls-tree: split up "fast path" callbacks, 2022-03-23) was
a "maybe a good idea, maybe not" RFC-quality patch. I hadn't looked
very carefully at the resulting patterns.

The implementation shared the "struct show_tree_data data", which was
introduced in e81517155e (ls-tree: introduce struct "show_tree_data",
2022-03-23) both for use in 455923e0a1 (ls-tree: introduce "--format"
option, 2022-03-23), and because the "fat" callback hadn't been split
up as 9c4d58ff2c did.

Now that that's been done we can see that most of what
show_tree_common() was doing could be done lazily by the callbacks
themselves, who in the pre-image were often using an odd mis-match of
their own arguments and those same arguments stuck into the "data"
structure. Let's also have the callers initialize the "type", rather
than grabbing it from the "data" structure afterwards.

1. https://lore.kernel.org/git/cover-0.7-00000000000-20220310T134811Z-avarab@gmail.com/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Teng Long <dyronteng@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 15:09:22 -08:00
Johannes Schindelin
70d3dbfea9 bisect: remove Cogito-related code
Once upon a time, there was this idea that Git would not actually be a
single coherent program, but rather a set of low-level programs that
users cobble together via shell scripts, or develop high-level user
interfaces for Git, or both.

Cogito was such a high-level user interface, incidentally implemented
via shell scripts that cobble together Git calls.

It did turn out relatively quickly that Git would much rather provide a
useful high-level user interface itself.

As of April 19th, 2007, Cogito was therefore discontinued (see
https://lore.kernel.org/git/20070419124648.GL4489@pasky.or.cz/).

Nevertheless, for almost 15 years after that announcement, Git carried
special code in `git bisect` to accommodate Cogito.

Since it is beyond doubt that there are no more Cogito users, let's
remove the last remnant of Cogito-accommodating code.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 14:17:14 -08:00
Johannes Schindelin
4de06fbd56 bisect run: fix the error message
In d1bbbe45df (bisect--helper: reimplement `bisect_run` shell function
in C, 2021-09-13), we ported the `bisect run` subcommand to C, including
the part that prints out an error message when the implicit `git bisect
bad` or `git bisect good` failed.

However, the error message was supposed to print out whether the state
was "good" or "bad", but used a bogus (because non-populated) `args`
variable for it. This was fixed in [1], but as of [2] (when
`bisect--helper` was changed to the present `bisect-state') the error
message still talks about implementation details that should not
concern end users.

Fix that, and add a regression test to ensure that the intended form of
the error message.

1. 80c2e9657f (bisect--helper: report actual bisect_state() argument
   on error, 2022-01-18
2. f37d0bdd42 (bisect: fix output regressions in v2.30.0, 2022-11-10)

Helped-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 14:17:14 -08:00
Ævar Arnfjörð Bjarmason
6f97792285 bisect--helper: make the order consistently argc, argv
In C, the natural order is for `argc` to come before `argv` by virtue of
the `main()` function declaring the parameters in precisely that order.

It is confusing & distracting, then, when readers familiar with the C
language read code where that order is switched around.

Let's just change the order and avoid that type of developer friction.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 14:17:13 -08:00
Johannes Schindelin
7a8d7aaa47 bisect--helper: simplify exit code computation
We _already_ have a function to determine whether a given `enum
bisect_error` value is non-zero but still _actually_ indicates success.

Let's use it instead of duplicating the logic.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 14:17:13 -08:00
Phillip Wood
e57d2c5937 rebase: cleanup "--exec" option handling
When handling "--exec" rebase collects the commands into a struct
string_list, then prepends "exec " to each command creating a multi line
string and finally splits that string back into a list of commands. This
is an artifact of the scripted rebase and the need to support "rebase
--preserve-merges". Now that "--preserve-merges" no-longer exists we can
cleanup the way the argument is handled. There is no need to add the
"exec " prefix to the commands as that is added by todo_list_to_strbuf().

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 12:23:14 -08:00
Ævar Arnfjörð Bjarmason
0dda3ac925 builtin/difftool.c: { 0 }-initialize rather than using memset()
Refactor an initialization of a variable added in
03831ef7b5 (difftool: implement the functionality in the builtin,
2017-01-19). This refactoring makes a subsequent change smaller.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 10:36:57 -08:00
Seija Kijin
0c75692ebc merge: break out of all_strategy loop when strategy is found
Once we find a match, there is no point to try finding the second
match in the inner loop.  Break out of the loop once we find the
first match.

Signed-off-by: Seija Kijin <doremylover123@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 10:24:57 -08:00
René Scharfe
6e57841096 use DUP_ARRAY
Add a semantic patch for replace ALLOC_ARRAY+COPY_ARRAY with DUP_ARRAY
to reduce code duplication and apply its results.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-09 13:28:36 +09:00
Jeff King
d43b99322b convert trivial uses of strncmp() to skip_prefix()
As with the previous patch, using skip_prefix() is more readable and
less error-prone than a raw strncmp(), because it avoids a
manually-computed length. These cases differ from the previous patch
that uses starts_with() because they care about the value after the
matched prefix.

We can convert these to use skip_prefix() by introducing an extra
variable to hold the out-pointer.

Note in the case in ws.c that to get rid of the magic number "9"
completely, we also switch out "len" for recomputing the pointer
difference. These are equivalent because "len" is always "ep - string".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-08 10:34:37 +09:00
Jeff King
20869d1a1d convert trivial uses of strncmp() to starts_with()
It's more readable to use starts_with() instead of strncmp() to match a
prefix, as the latter requires a manually-computed length, and has the
funny "matching is zero" return value common to cmp functions.  This
patch converts several cases which were found with:

  git grep 'strncmp(.*, [0-9]*)'

But note that it doesn't convert all such cases. There are several where
the magic length number is repeated elsewhere in the code, like:

  /* handle "buf" which isn't NUL-terminated and might be too small */
  if (len >= 3 && !strncmp(buf, "foo", 3))

or:

  /* exact match for "foo", but within a larger string */
  if (end - buf == 3 && !strncmp(buf, "foo", 3))

While it would not produce the wrong outcome to use starts_with() in
these cases, we'd still be left with one instance of "3". We're better
to leave them for now, as the repeated "3" makes it clear that the two
are linked (there may be other refactorings that handle both, but
they're out of scope for this patch).

A few things to note while reading the patch:

  - all cases but one are trying to match, and so lose the extra "!".
    The case in the first hunk of urlmatch.c is not-matching, and hence
    gains a "!".

  - the case in remote-fd.c is matching the beginning of "connect foo",
    but we never look at str+8 to parse the "foo" part (which would make
    this a candidate for skip_prefix(), not starts_with()). This seems
    at first glance like a bug, but is a limitation of how remote-fd
    works.

  - the second hunk in urlmatch.c shows some cases adjacent to other
    strncmp() calls that are left. These are of the "exact match within
    a larger string" type, as described above.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-08 10:34:35 +09:00
Andrei Rybak
b39a84185e *: fix typos which duplicate a word
Fix typos in code comments which repeat various words.  Most of the
cases are simple in that they repeat a word that usually cannot be
repeated in a grammatically correct sentence.  Just remove the
incorrectly duplicated word in these cases and rewrap text, if needed.

A tricky case is usage of "that that", which is sometimes grammatically
correct.  However, an instance of this in "t7527-builtin-fsmonitor.sh"
doesn't need two words "that", because there is only one daemon being
discussed, so replace the second "that" with "the".

Reword code comment "entries exist on on-disk index" in function
update_one in file cache-tree.c, by replacing incorrect preposition "on"
with "in".

Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-08 10:28:34 +09:00