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2026-03-27Merge branch 'mf/apply-p-no-atoi'Junio C Hamano2-1/+43
"git apply -p<n>" parses <n> more carefully now. * mf/apply-p-no-atoi: apply.c: fix -p argument parsing
2026-03-27Merge branch 'gi/doc-boolean-config-typofix'Junio C Hamano1-1/+1
Doc typofix. * gi/doc-boolean-config-typofix: doc: add missing space on git-config page
2026-03-27Merge branch 'mr/merge-file-object-id-worktree-fix'Junio C Hamano2-1/+11
merge-file --object-id used to trigger a BUG when run in a linked worktree, which has been fixed. * mr/merge-file-object-id-worktree-fix: merge-file: fix BUG when --object-id is used in a worktree
2026-03-27Merge branch 'rs/prio-queue-to-commit-stack'Junio C Hamano3-19/+17
Uses of prio_queue as a LIFO stack of commits have been written with commit_stack. * rs/prio-queue-to-commit-stack: use commit_stack instead of prio_queue in LIFO mode
2026-03-27Merge branch 'ps/build-tweaks'Junio C Hamano49-99/+123
Tweak the build infrastructure by moving tools around. * ps/build-tweaks: meson: precompile "git-compat-util.h" meson: compile compatibility sources separately git-compat-util.h: move warning infra to prepare for PCHs builds: move build scripts into "tools/" contrib: move "update-unicode.sh" script into "tools/" contrib: move "coverage-diff.sh" script into "tools/" contrib: move "coccinelle/" directory into "tools/" Introduce new "tools/" directory
2026-03-27Merge branch 'jk/diff-highlight-identical-pairs'Junio C Hamano2-0/+23
The handling of the incomplete lines at the end by "git diff-highlight" has been fixed. * jk/diff-highlight-identical-pairs: contrib/diff-highlight: do not highlight identical pairs
2026-03-26Merge branch 'mf/format-patch-commit-list-format' into ↵Junio C Hamano6-14/+243
mf/format-patch-commit-list-format-doc * mf/format-patch-commit-list-format: format-patch: --commit-list-format without prefix format-patch: add preset for --commit-list-format format-patch: wrap generate_commit_list_cover() format.commitListFormat: strip meaning from empty docs/pretty-formats: add %(count) and %(total) format-patch: rename --cover-letter-format option format-patch: refactor generate_commit_list_cover pretty.c: better die message %(count) and %(total) docs: add usage for the cover-letter fmt feature format-patch: add commitListFormat config format-patch: add ability to use alt cover format format-patch: move cover letter summary generation pretty.c: add %(count) and %(total) placeholders
2026-03-26config: store allocated string in non-const pointerJeff King1-3/+4
When git-config matches a url, we copy the variable section name and store it in the "section" member of a urlmatch_config struct. That member is const, since the url-matcher will not touch it (and other callers really will have a const string). But that means that we have only a const pointer to our allocated string. We have to cast away the constness when we free it, and likewise when we assign NUL to tie off the "." separating the subsection and key. This latter happens implicitly via a strchr() call, but recent versions of glibc have added annotations that let the compiler detect that and complain. Let's keep our own "section" pointer for the non-const string, and then just point config.section at it. That avoids all of the casting, both explicit and implicit. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26rev-parse: avoid writing to const string for parent marksJeff King1-12/+13
The previous commit cleared up some const confusion in handling parent marks in revision.c, but we have roughly the same code duplicated in rev-parse. This one is much easier to fix, because the handling of the shortened string is all done in one place, after detecting any marks (but without shortening the string between marks). As a side note, I suspect this means that it behaves differently than the revision.c parser for weird stuff like "foo^!^@^-", but that is outside the scope of this patch. While we are here, let's also rename the variable "dotdot", which is totally misleading (and which we already fixed in revision.c long ago via f632dedd8d (handle_revision_arg: stop using "dotdot" as a generic pointer, 2017-05-19)). Doing that here makes the diff a little messier, but it also lets the compiler help us make sure we did not miss any stray mentions of the variable while we are changing its semantics. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26revision: avoid writing to const string for parent marksJeff King1-10/+15
We take in a "const char *", but may write a NUL into it when parsing parent marks like "foo^-", since we want to isolate "foo" as a string for further parsing. This is usually OK, as our "const" strings are often actually argv strings which are technically writeable, but we'd segfault with a string literal like: handle_revision_arg("HEAD^-", &revs, 0, 0); Similar to how we handled dotdot in a previous commit, we can avoid this by making a temporary copy of the left-hand side of the string. The cost should negligible compared to the rest of the parsing (like actually parsing commits to create their parent linked-lists). There is one slightly tricky thing, though. We parse some of the marks progressively, so that if we see "foo^!" for example, we'll strip that down to "foo" not just for calling add_parents_only(), but also for the rest of the function. That makes sense since we eventually want to pass "foo" to get_oid_with_context(). But it also means that we'll keep looking for other marks. In particular, "foo^-^!" is valid, though oddly "foo^!^-" would ignore the "^-". I'm not sure if this is a weird historical artifact of the implementation, or if there are important corner cases. So I've left the behavior unchanged. Each mark we find allocates a string with the mark stripped, which means we could allocate multiple times (and carry a free-able pointer for each to the end). But in practice we won't, because of the three marks, "^@" jumps immediately to the end without further parsing, and "^-^!" is nonsense that nobody would pass. So you'd get one allocation in general, and never more than two. Another obvious option would be to just copy "arg" up front and be OK with munging it. But that means we pay the cost even when we find no marks. We could make a single copy upon finding a mark and then munge, but that adds extra code to each site (checking whether somebody else allocated, and if not, adjusting our "mark" pointer to be relative to the copied string). I aimed for something that was clear and obvious, if a bit verbose. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26rev-parse: simplify dotdot parsingJeff King1-8/+7
The previous commit simplified the way that revision.c parses ".." and "..." range operators. But there's roughly similar code in rev-parse. This is less likely to trigger a segfault, as there is no library function which we'd pass a string literal to, but it still causes the compiler to complain about laundering away constness via strstr(). Let's give it the same treatment, copying the left-hand side of the range operator into its own string. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26revision: make handle_dotdot() interface less confusingJeff King1-23/+19
There are two very subtle bits to the way we parse ".." (and "...") range operators: 1. In handle_dotdot_1(), we assume that the incoming arguments "dotdot" and "arg" are part of the same string, with the first digit of the range-operator blanked to a NUL. Then when we want the full name (e.g., to report an error), we replace the NUL with a dot to restore the original string. 2. In handle_dotdot(), we take in a const string, but then we modify it by overwriting the range operator with a NUL. This has worked OK in practice since we tend to pass in buffers that are actually writeable (including argv), but segfaults with something like: handle_revision_arg("..HEAD", &revs, 0, 0); On top of that, building with recent versions of glibc causes the compiler to complain, because it notices when we use strchr() or strstr() to launder away constness (basically detecting the possibility of the segfault above via the type system). Instead of munging the buffer, let's instead make a temporary copy of the left-hand side of the range operator. That avoids any const violations, and lets us pass around the parsed elements independently: the left-hand side, the right-hand side, the number of dots (via the "symmetric" flag), and the original full string for error messages. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26fast-import: add 'abort-if-invalid' mode to '--signed-tags=<mode>'Justin Tobler2-4/+13
In git-fast-import(1), the 'abort-if-invalid' mode for the '--signed-commits' option verifies commit signatures during import and aborts the entire operation when verification fails. Extend the same behavior to signed tag objects by introducing an 'abort-if-invalid' mode for the '--signed-tags' option. Signed-off-by: Justin Tobler <jltobler@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26fast-import: add 'sign-if-invalid' mode to '--signed-tags=<mode>'Justin Tobler2-6/+55
With ee66c793f8 (fast-import: add mode to sign commits with invalid signatures, 2026-03-12), git-fast-import(1) learned to verify commit signatures during import and replace signatures that fail verification with a newly generated one. Extend the same behavior to signed tag objects by introducing a 'sign-if-invalid' mode for the '--signed-tags' option. Signed-off-by: Justin Tobler <jltobler@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26fast-import: add 'strip-if-invalid' mode to '--signed-tags=<mode>'Justin Tobler3-10/+110
With c20f112e51 (fast-import: add 'strip-if-invalid' mode to --signed-commits=<mode>, 2025-11-17), git-fast-import(1) learned to verify commit signatures during import and strip signatures that fail verification. Extend the same behavior to signed tag objects by introducing a 'strip-if-invalid' mode for the '--signed-tags' option. Signed-off-by: Justin Tobler <jltobler@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26fast-import: add 'abort-if-invalid' mode to '--signed-commits=<mode>'Justin Tobler6-3/+24
The '--signed-commits=<mode>' option for git-fast-import(1) configures how signed commits are handled when encountered. In cases where an invalid commit signature is encountered, a user may wish to abort the operation entirely. Introduce an 'abort-if-invalid' mode to do so. Signed-off-by: Justin Tobler <jltobler@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26fast-export: check for unsupported signing modes earlierJustin Tobler1-13/+2
The '--signed-{commits,tags}' options for git-fast-export(1) support only a subset of the modes accepted by git-fast-import(1). Unsupported modes such as 'strip-if-invalid' and 'sign-if-invalid' are accepted during option parsing, but cause the command to die later when a signed object is encountered. Instead, reject unsupported signing modes immediately after parsing the option. This treats them the same as other unknown modes and avoids deferring the error until object processing. This also removes duplicated checks in commit/tag handling code. Signed-off-by: Justin Tobler <jltobler@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26t5620: test backfill's unknown argument handlingDerrick Stolee2-0/+11
Before the recent changes to parse rev-list arguments inside of 'git backfill', the builtin would take arbitrary arguments without complaint (and ignore them). This was noticed and a patch was sent [1] which motivates this change. [1] https://lore.kernel.org/git/20260321031643.5185-1-r.siddharth.shrimali@gmail.com/ Note that the revision machinery can output an "ambiguous argument" warning if a value not starting with '--' is found and doesn't make sense as a reference or a pathspec. For unrecognized arguments starting with '--' we need to add logic into builtin/backfill.c to catch leftover arguments. Reported-by: Siddharth Shrimali <r.siddharth.shrimali@gmail.com> Signed-off-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26path-walk: support wildcard pathspecs for blob filteringDerrick Stolee2-13/+16
Previously, walk_objects_by_path() silently ignored pathspecs containing wildcards or magic by clearing them. This caused all blobs to be downloaded regardless of the given pathspec. Wildcard pathspecs like "d/file.*.txt" are useful for narrowing which blobs to process (e.g., during 'git backfill'). Support wildcard pathspecs by making two changes: 1. Add an 'exact_pathspecs' flag to path_walk_context. When the pathspec has no wildcards or magic, set this flag and use the existing fast-path prefix matching in add_tree_entries(). When wildcards are present, skip that block since prefix matching cannot handle glob patterns. 2. Add a match_pathspec() check in walk_path() to filter out blobs whose full path does not match the pathspec. This provides the actual blob-level filtering for wildcard pathspecs. Signed-off-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26backfill: work with prefix pathspecsDerrick Stolee4-11/+52
The previous change allowed specifying revision arguments over the 'git backfill' command-line. This created the opportunity for restricting the initial commit set by filtering the revision walk through a pathspec. Other than filtering the commit set (and thereby the root trees), this did not restrict the path-walk implementation of 'git backfill' and did not restrict the blobs that were downloaded to only those matching the pathspec. Update the path-walk API to accept certain kinds of pathspecs and to silently ignore anything too complex, for now. We will update this in the next change to properly restrict to even complex pathspecs. The current behavior focuses on pathspecs that match paths exactly. This includes exact filenames, including directory names as prefixes. Pathspecs containing wildcards or magic are cleared so the path walk downloads all blobs, as before. The reason for this restriction is to allow for a faster execution by pruning the path walk to only trees that could contribute towards one of those paths as a parent directory. The test directory 'd/f/' (next to 'd/file*.txt') was prepared in a previous commit to exercise the subtlety in prefix matching. Signed-off-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26backfill: accept revision argumentsDerrick Stolee3-7/+173
The existing implementation of 'git backfill' only includes downloading missing blobs reachable from HEAD. Advanced uses may desire more general commit limiting options, such as '--all' for all references, specifying a commit range via negative references, or specifying a recency of use such as with '--since=<date>'. All of these options are available if we use setup_revisions() to parse the unknown arguments with the revision machinery. This opens up a large number of possibilities, only a small set of which are tested here. For documentation, we avoid duplicating the option documentation and instead link to the documentation of 'git rev-list'. Note that these arguments currently allow specifying a pathspec, which modifies the commit history checks but does not limit the paths used in the backfill logic. This will be updated in a future change. Signed-off-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26t5620: prepare branched repo for revision testsDerrick Stolee1-2/+50
Prepare the test infrastructure for upcoming changes that teach 'git backfill' to accept revision arguments and pathspecs. Add test_tick before each commit in the setup loop so that commit dates are deterministic. This enables reliable testing with '--since'. Rename the 'd/e/' directory to 'd/f/' so that the prefix 'd/f' is ambiguous with the files 'd/file.*.txt'. This exercises the subtlety in prefix pathspec matching that will be added in a later commit. Create a branched version of the test repository (src-revs) with: - A 'side' branch merged into main, adding s/file.{1,2}.txt with two versions (4 new blobs, 52 total from main HEAD). - An unmerged 'other' branch adding o/file.{1,2}.txt (2 more blobs, 54 total reachable from --all). This structure makes --all, --first-parent, and --since produce meaningfully different results when used with 'git backfill'. Signed-off-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26revision: include object-name.hDerrick Stolee1-0/+1
The REV_INFO_INIT macro includes a use of the DEFAULT_ABBREV macro, which is defined in object-name.h. Include it in revision.h so consumers of REV_INFO_INIT do not need to include this hidden dependency. Signed-off-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26worktree: reject NULL worktree in get_worktree_git_dir()Phillip Wood2-2/+1
This removes the final dependence on "the_repository" in get_worktree_git_dir(). The last commit removed only caller that passed a NULL worktree. get_worktree_git_dir() has the following callers: - branch.c:prepare_checked_out_branches() which loops over all worktrees. - builtin/fsck.c:cmd_fsck() which loops over all worktrees. - builtin/receive-pack.c:update_worktree() which is called from update() only when "worktree" is non-NULL. - builtin/worktree.c:validate_no_submodules() which is called from check_clean_worktree() and move_worktree(), both of which supply a non-NULL worktree. - reachable.c:add_rebase_files() which loops over all worktrees. - revision.c:add_index_objects_to_pending() which loops over all worktrees. - worktree.c:is_current_worktree() which expects a non-NULL worktree. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26worktree add: stop reading ".git/HEAD"Phillip Wood2-35/+14
The function can_use_local_refs() prints a warning if there are no local branches and HEAD is invalid or points to an unborn branch. As part of the warning it prints the contents of ".git/HEAD". In a repository using the reftable backend HEAD is not stored in the filesystem so reading that file is pointless. In a repository using the files backend it is unclear how useful printing it is - it would be better to diagnose the problem for the user. For now, simplify the warning by not printing the file contents and adjust the relevant test case accordingly. Also fixup the test case to use test_grep so that anyone trying to debug a test failure in the future is not met by a wall of silence. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-26worktree: remove "the_repository" from is_current_worktree()Phillip Wood2-5/+5
The "is_current" member of struct worktree was added in 750e8a60d69 (worktree.c: mark current worktree, 2016-04-22) and was used in 8d9fdd7087d (worktree.c: check whether branch is rebased in another worktree, 2016-04-22) to optionally skip the current worktree when seeing if a branch is already checked out in die_if_checked_out(). To determine if a worktree is "current" is_current_worktree() compares the gitdir of the worktree to the gitdir of "the_repository" and returns true when they match. To get the gitdir of the worktree it calls get_workree_git_dir() which also depends on "the_repository". This means that even if "wt->path" matches "wt->repo->worktree" is_current_worktree(wt) will return false when "wt->repo" is not "the_repository". Consequently die_if_checked_out() will fail to skip such a worktree when checking if a branch is already checked out and may die errounously. Fix this by using the worktree's repository instance instead of "the_repository" when comparing gitdirs. The use of "the_repository" in is_current_wortree() comes from replacing get_git_dir() with repo_get_git_dir() in 246deeac951 (environment: make `get_git_dir()` accept a repository, 2024-09-12). In get_worktree_git_dir() it comes from replacing git_common_path() with repo_common_path() in 07242c2a5af (path: drop `git_common_path()` in favor of `repo_common_path()`, 2025-02-07). In both cases the replacements appear to have been mechanical. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25regexp: leave a pointer to resurrect workaround for HomebrewJunio C Hamano1-0/+5
Recently some GitHub CI jobs were broken by update on the platform side, which was eventually resolved by image rollback, but in the meantime Dscho invented a workaround patch to sidestep the broken part of the platform. Their future image update may contain the same bug, in which case the workaround may again become needed. As we do not want to be building with workaround that avoids system regexp library altogether unless the system is known to be broken, so short of an automated "detect broken system and apply workaround" mechanism, let's use the folks who are compiling the code to detect breakage on their system and cope with the breakage ;-) Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25Merge branch 'sa/replay-revert' into tc/replay-refJunio C Hamano7-99/+359
* sa/replay-revert: replay: add --revert mode to reverse commit changes sequencer: extract revert message formatting into shared function
2026-03-25replay: add --revert mode to reverse commit changesSiddharth Asthana5-67/+300
Add a `--revert <branch>` mode to git replay that undoes the changes introduced by the specified commits. Like --onto and --advance, --revert is a standalone mode: it takes a branch argument and updates that branch with the newly created revert commits. At GitLab, we need this in Gitaly for reverting commits directly on bare repositories without requiring a working tree checkout. The approach is the same as sequencer.c's do_pick_commit() -- cherry-pick and revert are just the same three-way merge with swapped arguments: - Cherry-pick: merge(ancestor=parent, ours=current, theirs=commit) - Revert: merge(ancestor=commit, ours=current, theirs=parent) We swap the base and pickme trees passed to merge_incore_nonrecursive() to reverse the diff direction. Reverts are processed newest-first (matching git revert behavior) to reduce conflicts by peeling off changes from the top. Each revert builds on the result of the previous one via the last_commit fallback in the main replay loop, rather than relying on the parent-mapping used for cherry-pick. Revert commit messages follow the usual git revert conventions: prefixed with "Revert" (or "Reapply" when reverting a revert), and including "This reverts commit <hash>.". The author is set to the current user rather than preserving the original author, matching git revert behavior. Helped-by: Christian Couder <christian.couder@gmail.com> Helped-by: Patrick Steinhardt <ps@pks.im> Helped-by: Elijah Newren <newren@gmail.com> Helped-by: Phillip Wood <phillip.wood123@gmail.com> Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Helped-by: Junio C Hamano <gitster@pobox.com> Helped-by: Toon Claes <toon@iotcl.com> Signed-off-by: Siddharth Asthana <siddharthasthana31@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25sequencer: extract revert message formatting into shared functionSiddharth Asthana2-32/+59
The logic for formatting revert commit messages (handling "Revert" and "Reapply" cases, appending "This reverts commit <ref>.", and handling merge-parent references) currently lives inline in do_pick_commit(). The upcoming replay --revert mode needs to reuse this logic. Extract all of this into a new sequencer_format_revert_message() function. The function takes a repository, the subject line, commit, parent, a use_commit_reference flag, and the output strbuf. It handles both regular reverts ("Revert "<subject>"") and revert-of-revert cases ("Reapply "<subject>""), and uses refer_to_commit() internally to format the commit reference. Update refer_to_commit() to take a struct repository parameter instead of relying on the_repository, and a bool instead of reading from replay_opts directly. This makes it usable from the new shared function without pulling in sequencer-specific state. Signed-off-by: Siddharth Asthana <siddharthasthana31@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25hook: reject unknown hook names in git-hook(1)Adrian Ratiu4-31/+100
Teach "git hook run" and "git hook list" to reject hook event names that are not recognized by Git. This helps catch typos such as "prereceive" when "pre-receive" was intended, since in 99% of the cases users want known (already-existing) hook names. The list of known hooks is derived from the generated hook-list.h (built from Documentation/githooks.adoc). This is why the Makefile is updated, so builtin/hook.c depends on hook-list.h. In meson the header is already a dependency for all builtins, no change required. The "--allow-unknown-hook-name" flag can be used to bypass this check. Suggested-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25hook: show disabled hooks in "git hook list"Adrian Ratiu4-28/+80
Disabled hooks were filtered out of the cache entirely, making them invisible to "git hook list". Keep them in the cache with a new "disabled" flag which is propagated to the respective struct hook. "git hook list" now shows disabled hooks as tab-separated columns, with the status as a prefix before the name (like scope with --show-scope). With --show-scope it looks like: $ git hook list --show-scope pre-commit global linter local disabled no-leaks hook from hookdir A disabled hook without a command issues a warning instead of the fatal "hook.X.command must be configured" error. We could also throw an error, however it seemd a bit excessive to me in this case. Suggested-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25hook: show config scope in git hook listAdrian Ratiu5-8/+63
Users running "git hook list" can see which hooks are configured but have no way to tell at which config scope (local, global, system...) each hook was defined. Store the scope from ctx->kvi->scope in the single-pass config callback, then carry it through the cache to the hook structs, so we can expose it to users via the "git hook list --show-scope" flag, which mirrors the existing git config --show-scope convention. Without the flag the output is unchanged. The scope is printed as a tab-separated prefix (like "git config --show-scope"), making it unambiguously machine-parseable even when the friendly name contains spaces. Example usage: $ git hook list --show-scope pre-commit global linter local no-leaks hook from hookdir Traditional hooks from the hookdir are unaffected by --show-scope since the config scope concept does not apply to them. Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25hook: introduce hook_config_cache_entry for per-hook dataAdrian Ratiu1-6/+22
Replace the bare `char *command` util pointer stored in each string_list item with a heap-allocated `struct hook_config_cache_entry` that carries that command string. This is just a refactoring with no behavior changes, to give the cache entry room to grow, so it can carry the additional hook metadata we'll be adding in the following commits. Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25t1800: add test to verify hook execution orderingAdrian Ratiu1-1/+28
There is a documented expectation that configured hooks are run before the hook from the hookdir. Add a test for it. While at it, I noticed that `git hook list -h` runs twice in the `git hook usage` test, so remove one invocation. Suggested-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25hook: make consistent use of friendly-name in docsAdrian Ratiu4-20/+20
Both `name` and `friendly-name` is being used. Standardize on `friendly-name` for consistency since name is rather generic, even when used in the hooks namespace. Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25hook: replace hook_list_clear() -> string_list_clear_func()Adrian Ratiu3-25/+37
Replace the custom function with string_list_clear_func() which is a more common pattern for clearing a string_list. To be able to do this, rework hook_clear() into hook_free(), so it can be passed to string_list_clear_func(). A slight complication is the need to keep a copy of the internal cb data free() pointer, however I think it's worth it since the API becomes cleaner, e.g. no more calls with NULL function args like hook_list_clear(hooks, NULL). In other words, the callers don't need to keep track of hook internal state to determine when cleanup is necessary or not (pass NULL) because each `struct hook` now owns its data_free callback. Suggested-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25hook: detect & emit two more bugsAdrian Ratiu1-0/+4
Trigger a bug when an unknown hook type is encountered while setting up hook execution. Also issue a bug if a configured hook is enabled without a cmd. Mostly useful for defensive coding. Suggested-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25hook: rename cb_data_free/alloc -> hook_data_free/allocAdrian Ratiu2-7/+7
Rename the hook callback function types to use the hook prefix. This is a style fix with no logic changes. Suggested-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25hook: fix minor style issuesAdrian Ratiu7-57/+61
Fix some minor style nits pointed out by Patrick, Junio and Eric: * Use CALLOC_ARRAY instead of xcalloc. * Init struct members during declaration. * Simplify if condition boolean logic. * Missing curly braces in if/else stmts. * Unnecessary header includes. * Capitalization and full-stop in error/warn messages. * Curly brace on separate line when defining struct. * Comment spelling: free'd -> freed. * Sort the included headers. * Blank line fixes to improve readability. These contain no logic changes, the code behaves the same as before. Suggested-by: Eric Sunshine <sunshine@sunshineco.com> Suggested-by: Junio C Hamano <gitster@pobox.com> Suggested-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25builtin/receive-pack: properly init receive_hook strbufAdrian Ratiu1-0/+1
The run_receive_hook() stack-allocated `struct receive_hook_feed_state` is a template with initial values for child states allocated on the heap for each hook process, by calling receive_hook_feed_state_alloc() when spinning up each hook child. All these values are already initialized to zero, however I forgot to properly initialize the strbuf, which I left NULL. This is more of a code cleanup because in practice it has no effect, the states used by the children are always initialized, however it's good to fix in case someone ends up accidentally dereferencing the NULL pointer in the future. Reported-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25hook: move unsorted_string_list_remove() to string-list.[ch]Adrian Ratiu3-11/+20
Move the convenience wrapper from hook to string-list since it's a more suitable place. Add a doc comment to the header. Also add a free_util arg to make the function more generic and make the API similar to other functions in string-list.h. Update the existing call-sites. Suggested-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25The 21st batchJunio C Hamano1-0/+4
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25Merge branch 'ps/object-counting'Junio C Hamano17-117/+300
The logic to count objects has been cleaned up. * ps/object-counting: odb: introduce generic object counting odb/source: introduce generic object counting object-file: generalize counting objects object-file: extract logic to approximate object count packfile: extract logic to count number of objects odb: stop including "odb/source.h"
2026-03-25Merge branch 'tb/incremental-midx-part-3.2'Junio C Hamano13-158/+891
Further work on incremental repacking using MIDX/bitmap * tb/incremental-midx-part-3.2: midx: enable reachability bitmaps during MIDX compaction midx: implement MIDX compaction t/helper/test-read-midx.c: plug memory leak when selecting layer midx-write.c: factor fanout layering from `compute_sorted_entries()` midx-write.c: enumerate `pack_int_id` values directly midx-write.c: extract `fill_pack_from_midx()` midx-write.c: introduce `midx_pack_perm()` helper midx: do not require packs to be sorted in lexicographic order midx-write.c: introduce `struct write_midx_opts` midx-write.c: don't use `pack_perm` when assigning `bitmap_pos` t/t5319-multi-pack-index.sh: fix copy-and-paste error in t5319.39 git-multi-pack-index(1): align SYNOPSIS with 'git multi-pack-index -h' git-multi-pack-index(1): remove non-existent incompatibility builtin/multi-pack-index.c: make '--progress' a common option midx: introduce `midx_get_checksum_hex()` midx: rename `get_midx_checksum()` to `midx_get_checksum_hash()` midx: mark `get_midx_checksum()` arguments as const
2026-03-25repo: show subcommand-specific help textMahi Kassa3-2/+24
Use subcommand-specific usage arrays for "git repo info" and "git repo structure" so that each command shows only its own synopsis in help output. Add tests to cover the subcommand help behavior. Signed-off-by: Mahi Kassa <mahlet.takassa@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-25repo: factor repo usage strings into shared macrosMahi Kassa1-4/+10
Factor the "git repo info" and "git repo structure" usage strings into shared macros so they can be reused in multiple usage arrays. This is a preparatory refactoring for subsequent changes to subcommand-specific help output. Signed-off-by: Mahi Kassa <mahlet.takassa@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-24t0061: simplify .bat testJeff King1-10/+2
The test added by 71f4960b91 (t0061: fix test for argv[0] with spaces (MINGW only), 2019-10-01) checks that we can use a .bat file with spaces as GIT_SSH. This is a good test in the sense that it's how the original bug was detected. And as the commit message there describes, there are some elements of the bug that are likely to come up with GIT_SSH and not elsewhere: namely that in addition to the .bat file having spaces, we must pass an argument with spaces (which happens naturally with ssh, since we pass the upload-pack shell command for the other side to run). But using GIT_SSH does complicate matters: 1. We actually run the ssh command _twice_, once to probe the ssh variant with "-G" in fill_ssh_args(), and then a second time to actually make the connection. So we have to account for that when checking the output. 2. Our fake ssh .bat file does not actually run ssh. So we expect the command to fail, but not before the .bat file has touched the "out" marker file that tells us it has run. This works now, but is fragile. In particular, the .bat file by default will echo commands it runs to stdout. From the perspective of the parent Git process, this is protocol-breaking garbage, and upon seeing it will die(). That is OK for now because we don't bother to do any cleanup of the child process. But there is a patch under discussion, dd3693eb08 (transport-helper, connect: use clean_on_exit to reap children on abnormal exit, 2026-03-12), which causes us to kill() the .bat process. This happens before it actually touches the "out" file, causing the test to fail. We can simplify this by just using the "test-tool run-command" helper. That lets us run whatever command we like with the arguments we want. The argument here has a space, which is enough to trigger the original bug that 71f4960b91 was testing. I verified that by reverting eb7c786314 (mingw: support spawning programs containing spaces in their names, 2019-07-16), the original fix, and confirming that the test fails (but succeeds without the revert). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-24replay: support replaying down from root commitToon Claes2-13/+24
git-replay(1) doesn't allow replaying commits all the way down to the root commit. Fix that. Signed-off-by: Toon Claes <toon@iotcl.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-24The 20th batchJunio C Hamano1-0/+30
Signed-off-by: Junio C Hamano <gitster@pobox.com>