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10 daysMerge branch 'jc/memzero-array'Junio C Hamano
Further application of MEMZERO_ARRAY() macro to the rest of the code base. * jc/memzero-array: cocci: use MEMZERO_ARRAY() a bit more coccicheck: emit the contents of cocci patch
10 daysMerge branch 'tc/memzero-array'Junio C Hamano
MEMZERO_ARRAY() helper is introduced to avoid clearing only the first N bytes of an N-element array whose elements are larger than a byte. * tc/memzero-array: contrib/coccinelle: pass include paths to spatch(1) git-compat-util: introduce MEMZERO_ARRAY() macro
11 daysMerge branch 'jc/macports-darwinports'Junio C Hamano
Makefile in-comment doc update. * jc/macports-darwinports: Makefile: help macOS novices by mentioning MacPorts
2025-12-16Merge branch 'rs/ban-mktemp'Junio C Hamano
Rewrite the only use of "mktemp()" that is subject to TOCTOU race and Stop using the insecure "mktemp()" function. * rs/ban-mktemp: compat: remove gitmkdtemp() banned.h: ban mktemp(3) compat: remove mingw_mktemp() compat: use git_mkdtemp() wrapper: add git_mkdtemp()
2025-12-16Merge branch 'ps/object-read-stream'Junio C Hamano
The "git_istream" abstraction has been revamped to make it easier to interface with pluggable object database design. * ps/object-read-stream: streaming: drop redundant type and size pointers streaming: move into object database subsystem streaming: refactor interface to be object-database-centric streaming: move logic to read packed objects streams into backend streaming: move logic to read loose objects streams into backend streaming: make the `odb_read_stream` definition public streaming: get rid of `the_repository` streaming: rely on object sources to create object stream packfile: introduce function to read object info from a store streaming: move zlib stream into backends streaming: create structure for filtered object streams streaming: create structure for packed object streams streaming: create structure for loose object streams streaming: create structure for in-core object streams streaming: allocate stream inside the backend-specific logic streaming: explicitly pass packfile info when streaming a packed object streaming: propagate final object type via the stream streaming: drop the `open()` callback function streaming: rename `git_istream` into `odb_read_stream`
2025-12-13coccicheck: emit the contents of cocci patchJunio C Hamano
Telling the user "you got some error messages" without showing what the errors are is almost useless in CI environment, as the errors cannot be examined without downloading build artifacts. Arrange it to spew out the output when it fails. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-12-12Makefile: help macOS novices by mentioning MacPortsJunio C Hamano
Since Aug 2006, the DarwinPorts project renamed themselves as MacPorts. Those who are not intimately familiar with the Opensource ecosystem around macOS from olden days, the name DarwinPorts may not ring a bell, even when they are using MacPorts. Signed-off-by: Junio C Hamano <gitster@pobox.com> Reviewed-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-12-11contrib/coccinelle: pass include paths to spatch(1)Toon Claes
In the previous commit a new coccinelle rule is added. But neiter `make coccicheck` nor `meson compile coccicheck` did detect a case in builtin/last-modified.c. This case involves the field `scratch` in `struct last_modified`. This field is of type `struct bitmap` and that struct has a member `eword_t *words`. Both are defined in `ewah/ewok.h`. Now, while builtin/last-modified.c does include that header (with the subdir in the #include directive), it seems coccinelle does not process it. So it's unaware of the type of `words` in the bitmap, and it doesn't recognize the rule from previous commit that uses: type T; T *ptr; Fix coccicheck by passing all possible include paths inside the Git project so spatch(1) can find the headers and can determine the types. Signed-off-by: Toon Claes <toon@iotcl.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-12-07compat: remove gitmkdtemp()René Scharfe
gitmkdtemp() has become a trivial wrapper around git_mkdtemp(). Remove this now unnecessary layer of indirection. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-12-05Merge branch 'js/strip-scalar-too'Junio C Hamano
"make strip" has been taught to strip "scalar" as well as "git". * js/strip-scalar-too: make strip: include `scalar`
2025-11-30Merge branch 'jk/asan-bonanza'Junio C Hamano
Various issues detected by Asan have been corrected. * jk/asan-bonanza: t: enable ASan's strict_string_checks option fsck: avoid parse_timestamp() on buffer that isn't NUL-terminated fsck: remove redundant date timestamp check fsck: avoid strcspn() in fsck_ident() fsck: assert newline presence in fsck_ident() cache-tree: avoid strtol() on non-string buffer Makefile: turn on NO_MMAP when building with ASan pack-bitmap: handle name-hash lookups in incremental bitmaps compat/mmap: mark unused argument in git_munmap()
2025-11-23streaming: move into object database subsystemPatrick Steinhardt
The "streaming" terminology is somewhat generic, so it may not be immediately obvious that "streaming.{c,h}" is specific to the object database. Rectify this by moving it into the "odb/" directory so that it can be immediately attributed to the object subsystem. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-11-18Makefile: turn on NO_MMAP when building with ASanJeff King
Git often uses mmap() to access on-disk files. This leaves a blind spot in our SANITIZE=address builds, since ASan does not seem to handle mmap at all. Nor does the OS notice most out-of-bounds access, since it tends to round up to the nearest page size (so depending on how big the map is, you might have to overrun it by up to 4095 bytes to trigger a segfault). The previous commit demonstrates a memory bug that we missed. We could have made a new test where the out-of-bounds access was much larger, or where the mapped file ended closer to a page boundary. But the point of running the test suite with sanitizers is to catch these problems without having to construct specific tests. Let's enable NO_MMAP for our ASan builds by default, which should give us better coverage. This does increase the memory usage of Git, since we're copying from the filesystem into heap. But the repositories in the test suite tend to be small, so the overhead isn't really noticeable (and ASan already has quite a performance penalty). There are a few other known bugs that this patch will help flush out. However, they aren't directly triggered in the test suite (yet). So it's safe to turn this on now without breaking the test suite, which will help us add new tests to demonstrate those other bugs as we fix them. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-11-17make strip: include `scalar`Johannes Schindelin
When Scalar was made a canonical part of Git in 7b5c93c6c68 (scalar: include in standard Git build & installation, 2022-09-02), it was added to all relevant Makefile targets except for the `strip` target. Let's correct that. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-11-16t/unit-tests: add UTF-8 width tests for CJK charsJiang Xin
The file "builtin/repo.c" uses utf8_strwidth() to calculate the display width of UTF-8 characters in a table, but the resulting output is still misaligned. Add test cases for both utf8_strwidth and utf8_strnwidth to verify that they correctly compute the display width for UTF-8 characters. Also updated the build configuration in Makefile and meson.build to include the new test suite in the build process. Signed-off-by: Jiang Xin <worldhello.net@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-29Merge branch 'tb/incremental-midx-part-3.1'Junio C Hamano
Clean-up "git repack" machinery to prepare for incremental update of midx files. * tb/incremental-midx-part-3.1: (49 commits) builtin/repack.c: clean up unused `#include`s repack: move `write_cruft_pack()` out of the builtin repack: move `write_filtered_pack()` out of the builtin repack: move `pack_kept_objects` to `struct pack_objects_args` repack: move `finish_pack_objects_cmd()` out of the builtin builtin/repack.c: pass `write_pack_opts` to `finish_pack_objects_cmd()` repack: extract `write_pack_opts_is_local()` repack: move `find_pack_prefix()` out of the builtin builtin/repack.c: use `write_pack_opts` within `write_cruft_pack()` builtin/repack.c: introduce `struct write_pack_opts` repack: 'write_midx_included_packs' API from the builtin builtin/repack.c: inline packs within `write_midx_included_packs()` builtin/repack.c: pass `repack_write_midx_opts` to `midx_included_packs` builtin/repack.c: inline `remove_redundant_bitmaps()` builtin/repack.c: reorder `remove_redundant_bitmaps()` repack: keep track of MIDX pack names using existing_packs builtin/repack.c: use a string_list for 'midx_pack_names' builtin/repack.c: extract opts struct for 'write_midx_included_packs()' builtin/repack.c: remove ref snapshotting from builtin repack: remove pack_geometry API from the builtin ...
2025-10-28Merge branch 'ps/ci-rust'Junio C Hamano
CI improvements to handle the recent Rust integration better. * ps/ci-rust: rust: support for Windows ci: verify minimum supported Rust version ci: check for common Rust mistakes via Clippy rust/varint: add safety comments ci: check formatting of our Rust code ci: deduplicate calls to `apt-get update`
2025-10-17Merge branch 'en/make-libgit-a'Junio C Hamano
Instead of three library archives (one for git, one for reftable, and one for xdiff), roll everything into a single libgit.a archive. This would help later effort to FFI into Rust. * en/make-libgit-a: make: delete REFTABLE_LIB, add reftable to LIB_OBJS make: delete XDIFF_LIB, add xdiff to LIB_OBJS
2025-10-16repack: move `write_cruft_pack()` out of the builtinTaylor Blau
In an identical fashion as the previous commit, move the function `write_cruft_pack()` into its own compilation unit, and make the function visible through the repack.h API. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-16repack: move `write_filtered_pack()` out of the builtinTaylor Blau
In a similar fashion as in previous commits, move the function `write_filtered_pack()` out of the builtin and into its own compilation unit. This function is now part of the repack.h API, but implemented in its own "repack-filtered.c" unit as it is a separate component from other kinds of repacking operations. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-16builtin/repack.c: remove ref snapshotting from builtinTaylor Blau
When writing a MIDX, 'git repack' takes a snapshot of the repository's references and writes the result out to a file, which it then passes to 'git multi-pack-index write' via the '--refs-snapshot'. This is done in order to make bitmap selections with respect to what we are packing, thus avoiding a race where an incoming reference update causes us to try and write a bitmap for a commit not present in the MIDX. Extract this functionality out into a new repack-midx.c compilation unit, and expose the necessary functions via the repack.h API. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-16repack: remove pack_geometry API from the builtinTaylor Blau
Now that the pack_geometry API is fully factored and isolated from the rest of the builtin, declare it within repack.h and move its implementation to "repack-geometry.c" as a separate component. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-16builtin/repack.c: remove "repack_promisor_objects()" from the builtinTaylor Blau
Now that we have properly factored the portion of the builtin which is responsible for repacking promisor objects, we can move that function (and associated dependencies) out of the builtin entirely. Similar to previous extractions, this function is declared in repack.h, but implemented in a separate repack-promisor.c file. This is done to separate promisor-specific repacking functionality from generic repack utilities (like "existing_packs", and "generated_pack" APIs). Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-16repack: introduce new compilation unitTaylor Blau
Over the years, builtin/repack.c has turned into a grab-bag of functionality powering the 'git repack' builtin. Among its many capabilities, it: - can build and spawn 'git pack-objects' commands, which in turn generate new packs - has infrastructure to manage the set of existing packs in a repository - has infrastructure to split a sequence of packs into a geometric progression based on object size - can manage both generating and combining cruft packs together - can write new MIDXs to name a few. As a result, this builtin has accumulated a lot of code, making adding new functionality difficult. In the future, 'repack' will learn how to manage a chain of incremental MIDXs, adding yet more functionality into the builtin. As a prerequisite step, let's first move some of the functionality in the builtin into its own repack.[ch]. This will be done over the course of many steps, since there are many individual components, some of which will end up in other, yet-to-exist compilation units of their own. Some of the code movement here is also non-trivial, so performing it in individual steps will make it easier to verify. Let's start by migrating 'struct pack_objects_args' (and the related corresponding pack_objects_args_release() function) into repack.h, and teach both the Makefile and Meson how to build the new compilation unit. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-15rust: support for WindowsPatrick Steinhardt
The initial patch series that introduced Rust into the core of Git only cared about macOS and Linux. This specifically leaves out Windows, which indeed fails to build right now due to two issues: - The Rust runtime requires `GetUserProfileDirectoryW()`, but we don't link against "userenv.dll". - The path of the Rust library built on Windows is different than on most other systems systems. Fix both of these issues to support Windows. Note that this commit fixes the Meson-based job in GitHub's CI. Meson auto-detects the availability of Rust, and as the Windows runner has Rust installed by default it already enabled Rust support there. But due to the above issues that job fails consistently. Install Rust on GitLab CI, as well, to improve test coverage there. Based-on-patch-by: Johannes Schindelin <johannes.schindelin@gmx.de> Based-on-patch-by: Ezekiel Newren <ezekielnewren@gmail.com> Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-13Merge branch 'kn/reftable-consistency-checks'Junio C Hamano
The reftable backend learned to sanity check its on-disk data more carefully. * kn/reftable-consistency-checks: refs/reftable: add fsck check for checking the table name reftable: add code to facilitate consistency checks fsck: order 'fsck_msg_type' alphabetically Documentation/fsck-msgids: remove duplicate msg id reftable: check for trailing newline in 'tables.list' refs: move consistency check msg to generic layer refs: remove unused headers
2025-10-08Merge branch 'ps/rust-balloon'Junio C Hamano
Dip our toes a bit to (optionally) use Rust implemented helper called from our C code. * ps/rust-balloon: ci: enable Rust for breaking-changes jobs ci: convert "pedantic" job into full build with breaking changes BreakingChanges: announce Rust becoming mandatory varint: reimplement as test balloon for Rust varint: use explicit width for integers help: report on whether or not Rust is enabled Makefile: introduce infrastructure to build internal Rust library Makefile: reorder sources after includes meson: add infrastructure to build internal Rust library
2025-10-07Merge branch 'ps/rust-balloon' into ps/ci-rustJunio C Hamano
* ps/rust-balloon: ci: enable Rust for breaking-changes jobs ci: convert "pedantic" job into full build with breaking changes BreakingChanges: announce Rust becoming mandatory varint: reimplement as test balloon for Rust varint: use explicit width for integers help: report on whether or not Rust is enabled Makefile: introduce infrastructure to build internal Rust library Makefile: reorder sources after includes meson: add infrastructure to build internal Rust library
2025-10-07reftable: add code to facilitate consistency checksKarthik Nayak
The `git refs verify` command is used to run consistency checks on the reference backends. This command is also invoked when users run 'git fsck'. While the files-backend has some fsck checks added, the reftable backend lacks such checks. Let's add the required infrastructure and a check to test for the files present in the reftable directory. Since the reftable library is treated as an independent library we should ensure that the library code works independently without knowledge about Git's internals. To do this, add both 'reftable/fsck.c' and 'reftable/reftable-fsck.h'. Which provide an entry point 'reftable_fsck_check' for running fsck checks over a provided reftable stack. The callee provides the function with callbacks to handle issue and information reporting. The added check, goes over all tables in the reftable stack validates that they have a valid name. It not, it raises an error. While here, move 'reftable/error.o' in the Makefile to retain lexicographic ordering. Signed-off-by: Karthik Nayak <karthik.188@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-03make: delete REFTABLE_LIB, add reftable to LIB_OBJSEzekiel Newren
Same idea as the previous commit except that I don't know when or if reftable will be turned into a Rust crate. Signed-off-by: Ezekiel Newren <ezekielnewren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-03make: delete XDIFF_LIB, add xdiff to LIB_OBJSEzekiel Newren
In a future patch series the 'xdiff' Rust crate will be added. Delete the creation of the static library file for xdiff to avoid a name conflict. This also moves toward the goal of Rust only needing to link against libgit.a. Changes to Meson are not required as the xdiff library is already included in Meson's libgit.a. xdiff-objs was a historical make target to allow building just the objects in xdiff. Since it was defined in terms of XDIFF_OBJS (which no longer exists) this convenience make target no longer makes sense. Remove it. Signed-off-by: Ezekiel Newren <ezekielnewren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-02Merge branch 'kh/you-still-use-whatchanged-fix'Junio C Hamano
The "do you still use it?" message given by a command that is deeply deprecated and allow us to suggest alternatives has been updated. * kh/you-still-use-whatchanged-fix: BreakingChanges: remove claim about whatchanged reports whatchanged: remove not-even-shorter clause whatchanged: hint about git-log(1) and aliasing you-still-use-that??: help the user help themselves t0014: test shadowing of aliases for a sample of builtins git: allow alias-shadowing deprecated builtins git: move seen-alias bookkeeping into handle_alias(...) git: add `deprecated` category to --list-cmds Makefile: don’t add whatchanged after it has been removed
2025-10-02Merge branch 'ms/refs-optimize'Junio C Hamano
"git refs optimize" is added for not very well explained reason despite it does the same thing as "git pack-refs"... * ms/refs-optimize: t: add test for git refs optimize subcommand t0601: refactor tests to be shareable builtin/refs: add optimize subcommand doc: pack-refs: factor out common options builtin/pack-refs: factor out core logic into a shared library builtin/pack-refs: convert to use the generic refs_optimize() API reftable-backend: implement 'optimize' action files-backend: implement 'optimize' action refs: add a generic 'optimize' API
2025-10-02varint: reimplement as test balloon for RustPatrick Steinhardt
Implement a trivial test balloon for our Rust build infrastructure by reimplementing the "varint.c" subsystem in Rust. This subsystem is chosen because it is trivial to convert and because it doesn't have any dependencies to other components of Git. If support for Rust is enabled, we stop compiling "varint.c" and instead compile and use "src/varint.rs". Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-02Makefile: introduce infrastructure to build internal Rust libraryPatrick Steinhardt
Introduce infrastructure to build the internal Rust library. This mirrors the infrastructure we have added to Meson in the preceding commit. Developers can enable the infrastructure by passing the new `WITH_RUST` build toggle. Inspired-by: Ezekiel Newren <ezekielnewren@gmail.com> Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-10-02Makefile: reorder sources after includesPatrick Steinhardt
In an upcoming change we'll make some of the sources compile conditionally based on whether or not `WITH_RUST` is defined. To let developers specify that flag in their "config.mak" we'll thus have to reorder our sources so that they come after the include of that file. Do so. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-09-19builtin/pack-refs: factor out core logic into a shared libraryMeet Soni
The implementation of `git pack-refs` is monolithic within `cmd_pack_refs()`, making it impossible to share its logic with other commands. To enable code reuse for the upcoming `git refs optimize` subcommand, refactor the core logic into a shared helper function. Split the original `builtin/pack-refs.c` file into two parts: - A new shared library file, `pack-refs.c`, which contains the core option parsing and packing logic in a new `pack_refs_core()` helper function. - The original `builtin/pack-refs.c`, which is now a thin wrapper responsible only for defining the `git pack-refs` command and calling the shared helper. A new `pack-refs.h` header is also introduced to define the public interface for this shared logic. Mentored-by: Patrick Steinhardt <ps@pks.im> Mentored-by: shejialuo <shejialuo@gmail.com> Signed-off-by: Meet Soni <meetsoni3017@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-09-17Makefile: don’t add whatchanged after it has been removedKristoffer Haugsbakk
07572f220a8 (whatchanged: remove when built with WITH_BREAKING_CHANGES, 2025-05-12) set up the removal of git-whatchanged(1) when `WITH_BREAKING_CHANGES` is active. Part of that work was removing it from `commands` in `git.c`. But the Makefile still lists it as a builtin. That leaves it in the limbo of being linked but not being callable; you get the generic error about not being able to call it as a *builtin*: $ git whatchanged fatal: cannot handle whatchanged as a builtin instead of the expected: $ git whatchanged git: 'whatchanged' is not a git command. See 'git --help'. Based-on-patch-by: Jeff King <peff@peff.net> Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-09-16object-file: relocate ODB transaction codeJustin Tobler
The bulk-checkin subsystem provides various functions to manage ODB transactions. Apart from {begin,end}_odb_transaction(), these functions are only used by the object-file subsystem to manage aspects of a transaction implementation specific to the files object source. Relocate all the transaction code in bulk-checkin to object-file. This simplifies the exposed transaction interface by reducing it to only {begin,end}_odb_transaction(). Function and type names are adjusted in the subsequent commit to better fit the new location. Signed-off-by: Justin Tobler <jltobler@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-09-08Merge branch 'tc/last-modified'Junio C Hamano
A new command "git last-modified" has been added to show the closest ancestor commit that touched each path. * tc/last-modified: last-modified: use Bloom filters when available t/perf: add last-modified perf script last-modified: new subcommand to show when files were last modified
2025-09-08Merge branch 'da/cargo-serialize'Junio C Hamano
Makefile tried to run multiple "cargo build" which would not work very well; serialize their execution to work it around. * da/cargo-serialize: Makefile: build libgit-rs and libgit-sys serially
2025-08-28last-modified: new subcommand to show when files were last modifiedToon Claes
Similar to git-blame(1), introduce a new subcommand git-last-modified(1). This command shows the most recent modification to paths in a tree. It does so by expanding the tree at a given commit, taking note of the current state of each path, and then walking backwards through history looking for commits where each path changed into its final commit ID. Based-on-patch-by: Jeff King <peff@peff.net> Improved-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Toon Claes <toon@iotcl.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-08-26Makefile: build libgit-rs and libgit-sys seriallyDavid Aguilar
"make -JN" with INCLUDE_LIBGIT_RS enabled causes cargo lock warnings and can trigger ld errors during the build. The build errors are caused by two inner "make" invocations getting triggered concurrently: once inside of libgit-sys and another inside of libgit-rs. Make libgit-rs depend on libgit-sys so that "make" prevents them from running concurrently. Apply the same logic to the test invocations. Use cargo's "--manifest-path" option instead of "cd" in the recipes. Signed-off-by: David Aguilar <davvid@gmail.com> Acked-by: Kyle Lippincott <spectral@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-08-25Merge branch 'lo/repo-info'Junio C Hamano
A new subcommand "git repo" gives users a way to grab various repository characteristics. * lo/repo-info: repo: add the --format flag repo: add the field layout.shallow repo: add the field layout.bare repo: add the field references.format repo: declare the repo command
2025-08-25Merge branch 'tc/diff-tree-max-depth'Junio C Hamano
"git diff-tree" learned "--max-depth" option. * tc/diff-tree-max-depth: diff: teach tree-diff a max-depth parameter within_depth: fix return for empty path combine-diff: zero memory used for callback filepairs
2025-08-17repo: declare the repo commandLucas Seiki Oshiro
Currently, `git rev-parse` covers a wide range of functionality not directly related to parsing revisions, as its name suggests. Over time, many features like parsing datestrings, options, paths, and others were added to it because there wasn't a more appropriate command to place them. Create a new Git command called `repo`. `git repo` will be the main command for obtaining the information about a repository (such as metadata and metrics). Also declare a subcommand for `repo` called `info`. `git repo info` will bring the functionality of retrieving repository-related information currently returned by `rev-parse`. Add the required documentation and build changes to enable usage of this subcommand. Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk> Helped-by: Junio C Hamano <gitster@pobox.com> Helped-by: Justin Tobler <jltobler@gmail.com> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Mentored-by: Karthik Nayak <karthik.188@gmail.com> Mentored-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Lucas Seiki Oshiro <lucasseikioshiro@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-08-07within_depth: fix return for empty pathToon Claes
The within_depth() function is used to check whether pathspecs limited by a max-depth parameter are acceptable. It takes a path to check, a maximum depth, and a "base" depth. It counts the components in the path (by counting slashes), adds them to the base, and compares them to the maximum. However, if the base does not have any slashes at all, we always return `true`. If the base depth is 0, then this is correct; no matter what the maximum is, we are always within it. However, if the base depth is greater than 0, then we might return an erroneous result. This ends up not causing any user-visible bugs in the current code. The call sites in dir.c always pass a base depth of 0, so are unaffected. But tree_entry_interesting() uses this function differently: it will pass the prefix of the current entry, along with a `1` if the entry is a directory, in essence checking whether items inside the entry would be of interest. It turns out not to make a difference in behavior, but the reasoning is complex. Given a tree like: file a/file a/b/file walking the tree and calling tree_entry_interesting() will yield the following results: (with max_depth=0): file: yes a: yes a/file: no a/b: no (with max_depth=1): file: yes a: yes a/file: yes a/b: no So we have inconsistent behavior in considering directories interesting. If they are at the edge of our depth but at the root, we will recurse into them, but then find all of their entries uninteresting (e.g., in the first case, we will look at "a" but find "a/*" uninteresting). But if they are at the edge of our depth and not at the root, then we will not recurse (in the second example, we do not even bother entering "a/b"). This turns out not to matter because the only caller which uses max-depth pathspecs is cmd_grep(), which only cares about blob entries. From its perspective, it is exactly the same to not recurse into a subtree, or to recurse and find that it contains no matching entries. Not recursing is merely an optimization. It is debatable whether tree_entry_interesting() should consider such an entry interesting. The only caller does not care if it sees the tree itself, and can benefit from the optimization. But if we add a "max-depth" limiter to regular diffs, then a diff with DIFF_OPT_TREE_IN_RECURSIVE would probably want to show the tree itself, but not what it contains. This patch just fixes within_depth(), which means we consider such entries uninteresting (and makes the current caller happy). If we want to change that in the future, then this fix is still the correct first step, as the current behavior is simply inconsistent. This has the effect the function tree_entry_interesting() now behaves like following on the first example: (with max_depth=0): file: yes a: no a/file: no a/b: no Meaning we won't step in "a/" no more to realize all "a/*" entries are uninterested, but we stop at the tree entry itself. Based-on-patch-by: Jeff King <peff@peff.net> Signed-off-by: Toon Claes <toon@iotcl.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-08-01Merge branch 'sk/reftable-clarify-tests'Junio C Hamano
The reftable unit tests are now ported to the "clar" unit testing framework. * sk/reftable-clarify-tests: t/unit-tests: finalize migration of reftable-related tests t/unit-tests: convert reftable stack test to use clar t/unit-tests: convert reftable record test to use clar t/unit-tests: convert reftable readwrite test to use clar t/unit-tests: convert reftable table test to use clar t/unit-tests: convert reftable pq test to use clar t/unit-tests: convert reftable merged test to use clar t/unit-tests: convert reftable block test to use clar t/unit-tests: convert reftable basics test to use clar test framework t/unit-tests: implement clar specific reftable test helper functions
2025-07-24t/unit-tests: finalize migration of reftable-related testsSeyi Kuforiji
The old `lib-reftable.{c,h}` implemented helper functions for our homegrown unit-testing framework. As part of migrating reftable-related tests to the Clar framework, Clar-specific versions of these functions in `lib-reftable-clar.{c,h}` were introduced. Now that all test files using these helpers have been converted to Clar, we can safely remove the original `lib-reftable.{c,h}` and rename the Clar- specific versions back to `lib-reftable.{c,h}`. This restores a clean and consistent naming scheme for shared test utilities. Finally, update our build system to reflect the changes made and remove redundant code related to the reftable tests and our old homegrown unit-testing setup. `test-lib.{c,h}` remains unchanged in our build system as some files particularly `t/helper/test-example-tap.c` depends on it in order to run, and removing that would be beyond the scope of this patch. Signed-off-by: Seyi Kuforiji <kuforiji98@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-07-24t/unit-tests: convert reftable stack test to use clarSeyi Kuforiji
Adapt reftable stack test file to use clar by using clar assertions where necessary. This marks the end of all unit tests migrated away from the `unit-tests/t-*.c` pattern, there are no longer any files matching that glob. Remove the sanity check for `t-*.c` files to prevent Meson configuration errors during CI and local builds. Signed-off-by: Seyi Kuforiji <kuforiji98@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>