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2025-09-29Merge branch 'jk/setup-revisions-freefix'Junio C Hamano1-3/+4
There are double frees and leaks around setup_revisions() API used in "git stash show", which has been fixed, and setup_revisions() API gained a wrapper to make it more ergonomic when using it with strvec-manged argc/argv pairs. * jk/setup-revisions-freefix: revision: retain argv NULL invariant in setup_revisions() treewide: pass strvecs around for setup_revisions_from_strvec() treewide: use setup_revisions_from_strvec() when we have a strvec revision: add wrapper to setup_revisions() from a strvec revision: manage memory ownership of argv in setup_revisions() stash: tell setup_revisions() to free our allocated strings
2025-09-29Merge branch 'pw/rebase-i-cleanup-fix'Junio C Hamano1-12/+0
"git rebase -i" failed to clean-up the commit log message when the command commits the final one in a chain of "fixup" commands, which has been corrected. * pw/rebase-i-cleanup-fix: sequencer: remove VERBATIM_MSG flag rebase -i: respect commit.cleanup when picking fixups
2025-09-22treewide: pass strvecs around for setup_revisions_from_strvec()Jeff King1-3/+4
The previous commit converted callers of setup_revisions() with a strvec to use the safer and easier _from_strvec() variant. Let's now convert spots that don't directly have a strvec, but receive an argc/argv pair that eventually comes from one. We'll instead pass the strvec down to the point where we call setup_revisions(). That makes these functions slightly less flexible if they were to grow other callers that don't use strvecs, but this rigidity is buying us some safety. It is only safe to pass the free_removed_argv_elements option to setup_revisions() if we know the elements of argv/argc are allocated on the heap. That isn't communicated in the type system when we are passed the bare elements. But if we get a strvec, we know that the elements are allocated strings. And at any rate, each of these modified functions has only a single caller (that has a strvec), so the loss of flexibility is unlikely to ever matter. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-09-18sequencer: remove VERBATIM_MSG flagPhillip Wood1-11/+0
As the last commit deleted the only user of VERBATIM_MSG remove it. This reverts remaining parts of commit f7d42ceec52 (rebase -i: do leave commit message intact in fixup! chains, 2021-01-28) that were not deleted by the last commit. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-09-18rebase -i: respect commit.cleanup when picking fixupsPhillip Wood1-1/+0
If the user uses a prepare-commit-msg hook to add comments to the commit message template and sets commit.cleanup to remove them when the commit is created then the comments will not be removed when rebase commits the final command in a chain of "fixup" commands[1]. This happens because f7d42ceec52 (rebase -i: do leave commit message intact in fixup! chains, 2021-01-28) started passing the VERBATIM_MSG flag when committing the final command in a chain of "fixup" commands. That change was added in response to a bug report[2] where the commit message was being cleaned up when it should not be. The cause of that bug was that before f7d42ceec52 the sequencer passed CLEANUP_MSG when committing the final fixup. That commit should have simply removed the CLEANUP_MSG flag, not changed it to VERBATIM_MSG. Using VERBATIM_MSG ignores the user's commit.cleanup config when committing the final fixup which means it behaves differently to an ordinary "pick" command which respects commit.cleanup. Fix this by not setting an explicit cleanup flag when committing the final fixup which matches the way "pick" commands behave. The test added in f7d42ceec52 is replaced with one that checks that "fixup" and "pick" commands do not clean up the message when commit.cleanup is not set and do clean up the message when it is set. [1] https://lore.kernel.org/git/CA+itcS3DxbgpFy2aPRvHQvTAYE=dU0kfeDdidVwWLU=rBAWR4w@mail.gmail.com [2] https://lore.kernel.org/git/CANVGpwZGbzYLMeMze64e_OU9p3bjyEgzC5thmNBr6LttBt+YGw@mail.gmail.com Reported-by: Simon Cheng <cyqsimon@gmail.com> Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-08-21Merge branch 'js/rebase-i-allow-drop-on-a-merge'Junio C Hamano1-0/+1
During interactive rebase, using 'drop' on a merge commit lead to an error, which was incorrect. * js/rebase-i-allow-drop-on-a-merge: rebase -i: permit 'drop' of a merge commit
2025-08-06rebase -i: permit 'drop' of a merge commitJohannes Sixt1-0/+1
4c063c82e9 (rebase -i: improve error message when picking merge, 2024-05-30) added advice texts for cases when a merge commit is passed as argument of sequencer command that cannot operate with a merge commit. However, it forgot about the 'drop' command, so that in this case the BUG() in the default branch is reached. Handle 'drop' like 'merge', i.e., permit it without a message. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-07-23config: drop `git_config_set_multivar_in_file_gently()` wrapperPatrick Steinhardt1-1/+1
In 036876a1067 (config: hide functions using `the_repository` by default, 2024-08-13) we have moved around a bunch of functions in the config subsystem that depend on `the_repository`. Those function have been converted into mere wrappers around their equivalent function that takes in a repository as parameter, and the intent was that we'll eventually remove those wrappers to make the dependency on the global repository variable explicit at the callsite. Follow through with that intent and remove `git_config_set_multivar_in_file_gently()`. All callsites are adjusted so that they use `repo_config_set_multivar_in_file_gently(the_repository, ...)` instead. While some callsites might already have a repository available, this mechanical conversion is the exact same as the current situation and thus cannot cause any regression. Those sites should eventually be cleaned up in a later patch series. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-07-23config: drop `git_config_set_in_file_gently()` wrapperPatrick Steinhardt1-14/+14
In 036876a1067 (config: hide functions using `the_repository` by default, 2024-08-13) we have moved around a bunch of functions in the config subsystem that depend on `the_repository`. Those function have been converted into mere wrappers around their equivalent function that takes in a repository as parameter, and the intent was that we'll eventually remove those wrappers to make the dependency on the global repository variable explicit at the callsite. Follow through with that intent and remove `git_config_set_in_file_gently()`. All callsites are adjusted so that they use `repo_config_set_in_file_gently(the_repository, ...)` instead. While some callsites might already have a repository available, this mechanical conversion is the exact same as the current situation and thus cannot cause any regression. Those sites should eventually be cleaned up in a later patch series. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-07-23config: drop `git_config_get_int()` wrapperPatrick Steinhardt1-1/+1
In 036876a1067 (config: hide functions using `the_repository` by default, 2024-08-13) we have moved around a bunch of functions in the config subsystem that depend on `the_repository`. Those function have been converted into mere wrappers around their equivalent function that takes in a repository as parameter, and the intent was that we'll eventually remove those wrappers to make the dependency on the global repository variable explicit at the callsite. Follow through with that intent and remove `git_config_get_int()`. All callsites are adjusted so that they use `repo_config_get_int(the_repository, ...)` instead. While some callsites might already have a repository available, this mechanical conversion is the exact same as the current situation and thus cannot cause any regression. Those sites should eventually be cleaned up in a later patch series. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-07-23config: drop `git_config_get_string()` wrapperPatrick Steinhardt1-1/+1
In 036876a1067 (config: hide functions using `the_repository` by default, 2024-08-13) we have moved around a bunch of functions in the config subsystem that depend on `the_repository`. Those function have been converted into mere wrappers around their equivalent function that takes in a repository as parameter, and the intent was that we'll eventually remove those wrappers to make the dependency on the global repository variable explicit at the callsite. Follow through with that intent and remove `git_config_get_string()`. All callsites are adjusted so that they use `repo_config_get_string(the_repository, ...)` instead. While some callsites might already have a repository available, this mechanical conversion is the exact same as the current situation and thus cannot cause any regression. Those sites should eventually be cleaned up in a later patch series. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-07-23config: drop `git_config()` wrapperPatrick Steinhardt1-1/+1
In 036876a1067 (config: hide functions using `the_repository` by default, 2024-08-13) we have moved around a bunch of functions in the config subsystem that depend on `the_repository`. Those function have been converted into mere wrappers around their equivalent function that takes in a repository as parameter, and the intent was that we'll eventually remove those wrappers to make the dependency on the global repository variable explicit at the callsite. Follow through with that intent and remove `git_config()`. All callsites are adjusted so that they use `repo_config(the_repository, ...)` instead. While some callsites might already have a repository available, this mechanical conversion is the exact same as the current situation and thus cannot cause any regression. Those sites should eventually be cleaned up in a later patch series. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-07-15Merge branch 'ps/object-store'Junio C Hamano1-4/+3
Code clean-up around object access API. * ps/object-store: odb: rename `read_object_with_reference()` odb: rename `pretend_object_file()` odb: rename `has_object()` odb: rename `repo_read_object_file()` odb: rename `oid_object_info()` odb: trivial refactorings to get rid of `the_repository` odb: get rid of `the_repository` when handling submodule sources odb: get rid of `the_repository` when handling the primary source odb: get rid of `the_repository` in `for_each()` functions odb: get rid of `the_repository` when handling alternates odb: get rid of `the_repository` in `odb_mkstemp()` odb: get rid of `the_repository` in `assert_oid_type()` odb: get rid of `the_repository` in `find_odb()` odb: introduce parent pointers object-store: rename files to "odb.{c,h}" object-store: rename `object_directory` to `odb_source` object-store: rename `raw_object_store` to `object_database`
2025-07-01odb: rename `oid_object_info()`Patrick Steinhardt1-3/+2
Rename `oid_object_info()` to `odb_read_object_info()` as well as their `_extended()` variant to match other functions related to the object database and our modern coding guidelines. Introduce compatibility wrappers so that any in-flight topics will continue to compile. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-07-01object-store: rename files to "odb.{c,h}"Patrick Steinhardt1-1/+1
In the preceding commits we have renamed the structures contained in "object-store.h" to `struct object_database` and `struct odb_backend`. As such, the code files "object-store.{c,h}" are confusingly named now. Rename them to "odb.{c,h}" accordingly. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-03sequencer: replace error() with BUG() in update_squash_messages ()Lidong Yan1-2/+4
In sequencer.c, caller only pass TODO_SQUASH or TODO_FIXUP to update_squash_messages(), any other command passed in should be considered as BUG. Replace `return error('unknown command')` with `BUG('not a FIXUP or SQUASH')`. Signed-off-by: Lidong Yan <502024330056@smail.nju.edu.cn> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-05-27Merge branch 'en/sequencer-comment-messages'Junio C Hamano1-5/+11
Prefix '#' to the commit title in the "rebase -i" todo file, just like a merge commit being replayed. * en/sequencer-comment-messages: sequencer: make it clearer that commit descriptions are just comments
2025-05-27Merge branch 'js/misc-fixes'Junio C Hamano1-3/+6
Assorted fixes for issues found with CodeQL. * js/misc-fixes: sequencer: stop pretending that an assignment is a condition bundle-uri: avoid using undefined output of `sscanf()` commit-graph: avoid using stale stack addresses trace2: avoid "futile conditional" Avoid redundant conditions fetch: avoid unnecessary work when there is no current branch has_dir_name(): make code more obvious upload-pack: rename `enum` to reflect the operation commit-graph: avoid malloc'ing a local variable fetch: carefully clear local variable's address after use commit: simplify code
2025-05-27Merge branch 'ly/sequencer-rearrange-leakfix'Junio C Hamano1-3/+5
Leakfix. * ly/sequencer-rearrange-leakfix: sequencer: fix memory leak if `todo_list_rearrange_squash()` failed
2025-05-19Merge branch 'jk/oidmap-cleanup'Junio C Hamano1-2/+2
Code cleanup. * jk/oidmap-cleanup: raw_object_store: drop extra pointer to replace_map oidmap: add size function oidmap: rename oidmap_free() to oidmap_clear()
2025-05-19Merge branch 'pw/sequencer-reflog-use-after-free'Junio C Hamano1-59/+57
Use-after-free fix in the sequencer. * pw/sequencer-reflog-use-after-free: sequencer: rework reflog message handling sequencer: move reflog message functions
2025-05-16sequencer: make it clearer that commit descriptions are just commentsElijah Newren1-5/+11
Every once in a while, users report that editing the commit summaries in the todo list does not get reflected in the rebase operation, suggesting that users are (a) only using one-line commit messages, and (b) not understanding that the commit summaries are merely helpful comments to help them find the right hashes. It may be difficult to correct users' poor commit messages, but we can at least try to make it clearer that the commit summaries are not directives of some sort by inserting a comment character. Hopefully that leads to them looking a little further and noticing the hints at the bottom to use 'reword' or 'edit' directives. Yes, this change may look funny at first since it hardcodes '#' rather than using comment_line_str. However: * comment_line_str exists to allow disambiguation between lines in a commit message and lines that are instructions to users editing the commit message. No such disambiguation is needed for these comments that occur on the same line after existing directives * the exact "comment" character(s) on regular pick lines used aren't actually important; I could have used anything, including completely random variable length text for each line and it'd work because we ignore everything after 'pick' and the hash. * The whole point of this change is to signal to users that they should NOT be editing any part of the line after the hash (and if they do so, their edits will be ignored), while the whole point of comment_line_str is to allow highly flexible editing. So making it more general by using comment_line_str actually feels counterproductive. * The character for merge directives absolutely must be '#'; that has been deeply hardcoded for a long time (see below), and will break if some other comment character is used instead. In a desire to have pick and merge directives be similar, I use the same comment character for both. * Perhaps merge directives could be fixed to not be inflexible about the comment character used, if someone feels highly motivated, but I think that should be done in a separate follow-on patch. Here are (some of?) the locations where '#' has already been hardcoded for a long time for merges: 1) In check_label_or_ref_arg(): case TODO_LABEL: /* * '#' is not a valid label as the merge command uses it to * separate merge parents from the commit subject. */ 2) In do_merge(): /* * For octopus merges, the arg starts with the list of revisions to be * merged. The list is optionally followed by '#' and the oneline. */ merge_arg_len = oneline_offset = arg_len; for (p = arg; p - arg < arg_len; p += strspn(p, " \t\n")) { if (!*p) break; if (*p == '#' && (!p[1] || isspace(p[1]))) { 3) In label_oid(): if ((buf->len == the_hash_algo->hexsz && !get_oid_hex(label, &dummy)) || (buf->len == 1 && *label == '#') || hashmap_get_from_hash(&state->labels, strihash(label), label)) { /* * If the label already exists, or if the label is a * valid full OID, or the label is a '#' (which we use * as a separator between merge heads and oneline), we * append a dash and a number to make it unique. */ Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-05-15sequencer: fix memory leak if `todo_list_rearrange_squash()` failedLidong Yan1-3/+5
In sequencer.c:todo_list_rearrange_squash, if it fails, memory allocated in `next`, `tail`, `subjects` and `subject2item` will leak. Jump to cleanup label before return could fix this leak problem. Signed-off-by: Lidong Yan <502024330056@smail.nju.edu.cn> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-05-15sequencer: stop pretending that an assignment is a conditionJohannes Schindelin1-3/+6
In 3e81bccdf3 (sequencer: factor out todo command name parsing, 2019-06-27), a `return` statement was introduced that basically was a long sequence of conditions, combined with `&&`, except for the last condition which is not really a condition but an assignment. The point of this construct was to return 1 (i.e. `true`) from the function if all of those conditions held true, and also assign the `bol` pointer to the end of the parsed command. Some static analyzers are really unhappy about such constructs. And human readers are at least puzzled, if not confused, by seeing a single `=` inside a chain of conditions where they would have expected to see `==` instead and, based on experience, immediately suspect a typo. Let's help all of this by turning this into the more verbose, more readable form of an `if` construct that both assigns the pointer as well as returns 1 if all of the conditions hold true. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-05-12oidmap: rename oidmap_free() to oidmap_clear()Jeff King1-2/+2
This function does not free the oidmap struct itself; it just drops all items from the map (using hashmap_clear_() internally). It should be called oidmap_clear(), per CodingGuidelines. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-05-09sequencer: rework reflog message handlingPhillip Wood1-26/+24
It has been reported that "git rebase --rebase-merges" can create corrupted reflog entries like e9c962f2ea0 HEAD@{8}: <binary>�: Merged in <branch> (pull request #4441) This is due to a use-after-free bug that happens because reflog_message() uses a static `struct strbuf` and is not called to update the current reflog message stored in `ctx->reflog_message` when creating the merge. This means `ctx->reflog_message` points to a stale reflog message that has been freed by subsequent call to reflog_message() by a command such as `reset` that used the return value directly rather than storing the result in `ctx->reflog_message`. Fix this by creating the reflog message nearer to where the commit is created and storing it in a local variable which is passed as an additional parameter to run_git_commit() rather than storing the message in `struct replay_ctx`. This makes it harder to forget to call `reflog_message()` before creating a commit and using a variable with a narrower scope means that a stale value cannot carried across a from one iteration of the loop to the next which should prevent any similar use-after-free bugs in the future. A existing test is modified to demonstrate that merges are now created with the correct reflog message. Reported-by: Kristoffer Haugsbakk <code@khaugsbakk.name> Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-05-09sequencer: move reflog message functionsPhillip Wood1-33/+33
In the next commit these functions will be called from pick_one_commit() so move them above that function to avoid a forward declaration. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-04-24Merge branch 'ps/object-file-cleanup'Junio C Hamano1-3/+3
Code clean-up. * ps/object-file-cleanup: object-store: merge "object-store-ll.h" and "object-store.h" object-store: remove global array of cached objects object: split out functions relating to object store subsystem object-file: drop `index_blob_stream()` object-file: split up concerns of `HASH_*` flags object-file: split out functions relating to object store subsystem object-file: move `xmmap()` into "wrapper.c" object-file: move `git_open_cloexec()` to "compat/open.c" object-file: move `safe_create_leading_directories()` into "path.c" object-file: move `mkdir_in_gitdir()` into "path.c"
2025-04-17Merge branch 'en/merge-recursive-debug'Junio C Hamano1-37/+21
Remove remnants of the recursive merge strategy backend, which was superseded by the ort merge strategy. * en/merge-recursive-debug: builtin/{merge,rebase,revert}: remove GIT_TEST_MERGE_ALGORITHM tests: remove GIT_TEST_MERGE_ALGORITHM and test_expect_merge_algorithm merge-recursive.[ch]: thoroughly debug these merge, sequencer: switch recursive merges over to ort sequencer: switch non-recursive merges over to ort merge-ort: enable diff-algorithms other than histogram builtin/merge-recursive: switch to using merge_ort_generic() checkout: replace merge_trees() with merge_ort_nonrecursive()
2025-04-15Merge branch 'ps/object-wo-the-repository'Junio C Hamano1-5/+5
The object layer has been updated to take an explicit repository instance as a parameter in more code paths. * ps/object-wo-the-repository: hash: stop depending on `the_repository` in `null_oid()` hash: fix "-Wsign-compare" warnings object-file: split out logic regarding hash algorithms delta-islands: stop depending on `the_repository` object-file-convert: stop depending on `the_repository` pack-bitmap-write: stop depending on `the_repository` pack-revindex: stop depending on `the_repository` pack-check: stop depending on `the_repository` environment: move access to "core.bigFileThreshold" into repo settings pack-write: stop depending on `the_repository` and `the_hash_algo` object: stop depending on `the_repository` csum-file: stop depending on `the_repository`
2025-04-15object-store: merge "object-store-ll.h" and "object-store.h"Patrick Steinhardt1-1/+1
The "object-store-ll.h" header has been introduced to keep transitive header dependendcies and compile times at bay. Now that we have created a new "object-store.c" file though we can easily move the last remaining additional bit of "object-store.h", the `odb_path_map`, out of the header. Do so. As the "object-store.h" header is now equivalent to its low-level alternative we drop the latter and inline it into the former. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-04-15object-file: move `safe_create_leading_directories()` into "path.c"Patrick Steinhardt1-2/+2
The `safe_create_leading_directories()` function and its relatives are located in "object-file.c", which is not a good fit as they provide generic functionality not related to objects at all. Move them into "path.c", which already hosts `safe_create_dir()` and its relative `safe_create_dir_in_gitdir()`. "path.c" is free of `the_repository`, but the moved functions depend on `the_repository` to read the "core.sharedRepository" config. Adapt the function signature to accept a repository as argument to fix the issue and adjust callers accordingly. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-04-08merge, sequencer: switch recursive merges over to ortElijah Newren1-15/+8
More precisely, replace calls to merge_recursive() with merge_ort_recursive(). Also change t7615 to quit calling out recursive; it is not needed anymore, and we are in fact using ort now. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-04-08sequencer: switch non-recursive merges over to ortElijah Newren1-22/+13
The do_recursive_merge() function, which is somewhat misleadingly named since its purpose in life is to do a *non*-recursive merge, had code to allow either using the recursive or ort backends. The default has been ort for a very long time, let's just remove the code path for allowing the recursive backend to be selected. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-03-21treewide: replace assert() with ASSERT() in special casesElijah Newren1-1/+1
When the compiler/linker cannot verify that an assert() invocation is free of side effects for us (e.g. because the assertion includes some kind of function call), replace the use of assert() with ASSERT(). Signed-off-by: Elijah Newren <newren@gmail.com> Acked-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-03-10hash: stop depending on `the_repository` in `null_oid()`Patrick Steinhardt1-5/+5
The `null_oid()` function returns the object ID that only consists of zeroes. Naturally, this ID also depends on the hash algorithm used, as the number of zeroes is different between SHA1 and SHA256. Consequently, the function returns the hash-algorithm-specific null object ID. This is currently done by depending on `the_hash_algo`, which implicitly makes us depend on `the_repository`. Refactor the function to instead pass in the hash algorithm for which we want to retrieve the null object ID. Adapt callsites accordingly by passing in `the_repository`, thus bubbling up the dependency on that global variable by one layer. There are a couple of trivial exceptions for subsystems that already got rid of `the_repository`. These subsystems instead use the repository that is available via the calling context: - "builtin/grep.c" - "grep.c" - "refs/debug.c" There are also two non-trivial exceptions: - "diff-no-index.c": Here we know that we may not have a repository initialized at all, so we cannot rely on `the_repository`. Instead, we adapt `diff_no_index()` to get a `struct git_hash_algo` as parameter. The only caller is located in "builtin/diff.c", where we know to call `repo_set_hash_algo()` in case we're running outside of a Git repository. Consequently, it is fine to continue passing `the_repository->hash_algo` even in this case. - "builtin/ls-files.c": There is an in-flight patch series that drops `USE_THE_REPOSITORY_VARIABLE` in this file, which causes a semantic conflict because we use `null_oid()` in `show_submodule()`. The value is passed to `repo_submodule_init()`, which may use the object ID to resolve a tree-ish in the superproject from which we want to read the submodule config. As such, the object ID should refer to an object in the superproject, and consequently we need to use its hash algorithm. This means that we could in theory just not bother about this edge case at all and just use `the_repository` in "diff-no-index.c". But doing so would feel misdesigned. Remove the `USE_THE_REPOSITORY_VARIABLE` preprocessor define in "hash.c". Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-02-11rebase -i: reword empty commit after fast-forwardPhillip Wood1-3/+9
When rebase rewords a commit it picks the commit and then runs "git commit --amend" to reword it. When the commit is picked the sequencer tries to reuse existing commits by fast-forwarding if the parents are unchanged. Rewording an empty commit that has been fast-forwarded fails because "git commit --amend" is called without "--allow-empty". This happens because when a commit is fast-forwarded the logic that checks whether we should pass "--allow-empty" is skipped. Fix this by always passing "--allow-empty" when rewording a commit. This is safe because we are amending a commit that has already been picked so if it had become empty when it was picked we'd have already returned an error. As "git commit" will happily create empty merge commits without "--allow-empty" we do not need to pass that flag when rewording merge commits. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-12-06global: mark code units that generate warnings with `-Wsign-compare`Patrick Steinhardt1-0/+1
Mark code units that generate warnings with `-Wsign-compare`. This allows for a structured approach to get rid of all such warnings over time in a way that can be easily measured. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-12-06Merge branch 'kh/sequencer-comment-char'Junio C Hamano1-10/+16
The sequencer failed to honor core.commentString in some places. * kh/sequencer-comment-char: sequencer: comment commit messages properly sequencer: comment `--reference` subject line properly sequencer: comment checked-out branch properly
2024-11-26sequencer: comment commit messages properlyKristoffer Haugsbakk1-4/+8
The rebase todo editor has commands like `fixup -c` which affects the commit messages of the rebased commits.[1] For example: pick hash1 <msg> fixup hash2 <msg> fixup -c hash3 <msg> This says that hash2 and hash3 should be squashed into hash1 and that hash3’s commit message should be used for the resulting commit. So the user is presented with an editor where the two first commit messages are commented out and the third is not. However this does not work if `core.commentChar`/`core.commentString` is in use since the comment char is hardcoded (#) in this `sequencer.c` function. As a result the first commit message will not be commented out. † 1: See 9e3cebd97cb (rebase -i: add fixup [-C | -c] command, 2021-01-29) Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Co-authored-by: Phillip Wood <phillip.wood@dunelm.org.uk> Reported-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-11-26sequencer: comment `--reference` subject line properlyKristoffer Haugsbakk1-4/+5
`git revert --reference <commit>` leaves behind a comment in the first line:[1] # *** SAY WHY WE ARE REVERTING ON THE TITLE LINE *** Meaning that the commit will just consist of the next line if the user exits the editor directly: This reverts commit <--format=reference commit> But the comment char here is hardcoded (#). Which means that the comment line will inadvertently be included in the commit message if `core.commentChar`/`core.commentString` is in use. † 1: See 43966ab3156 (revert: optionally refer to commit in the "reference" format, 2022-05-26) Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-11-26sequencer: comment checked-out branch properlyKristoffer Haugsbakk1-2/+3
`git rebase --update-ref` does not insert commands for dependent/sub- branches which are checked out.[1] Instead it leaves a comment about that fact. The comment char is hardcoded (#). In turn the comment line gets interpreted as an invalid command when `core.commentChar`/ `core.commentString` is in use. † 1: See 900b50c242 (rebase: add --update-refs option, 2022-07-19) Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-11-21refs: allow passing flags when setting up a transactionPatrick Steinhardt1-3/+3
Allow passing flags when setting up a transaction such that the behaviour of the transaction itself can be altered. This functionality will be used in a subsequent patch. Adapt callers accordingly. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-10-09rebase-merges: try and use branch names as labelsNicolas Guichard1-8/+17
When interactively rebasing merge commits, the commit message is parsed to extract a probably meaningful label name. For instance if the merge commit is “Merge branch 'feature0'”, then the rebase script will have thes lines: ``` label feature0 merge -C $sha feature0 # “Merge branch 'feature0' ``` This heuristic fails in the case of octopus merges or when the merge commit message is actually unrelated to the parent commits. An example that combines both is: ``` *---. 967bfa4 (HEAD -> integration) Integration |\ \ \ | | | * 2135be1 (feature2, feat2) Feature 2 | |_|/ |/| | | | * c88b01a Feature 1 | |/ |/| | * 75f3139 (feat0) Feature 0 |/ * 25c86d0 (main) Initial commit ``` yields the labels Integration, Integration-2 and Integration-3. Fix this by using a branch name for each merge commit's parent that is the tip of at least one branch, and falling back to a label derived from the merge commit message otherwise. In the example above, the labels become feat0, Integration and feature2. Signed-off-by: Nicolas Guichard <nicolas@guichard.eu> Acked-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-10-09rebase-update-refs: extract load_branch_decorationsNicolas Guichard1-10/+1
Extract load_branch_decorations from todo_list_add_update_ref_commands so it can be re-used in make_script_with_merges. Since it can now be called multiple times, use non-static lists and place it next to load_ref_decorations to re-use the decoration_loaded guard. Signed-off-by: Nicolas Guichard <nicolas@guichard.eu> Acked-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-08-28Merge branch 'mt/rebase-x-quiet'Junio C Hamano1-3/+4
"git rebase -x --quiet" was not quiet, which was corrected. * mt/rebase-x-quiet: rebase --exec: respect --quiet
2024-08-23Merge branch 'ps/config-wo-the-repository'Junio C Hamano1-3/+3
Use of API functions that implicitly depend on the_repository object in the config subsystem has been rewritten to pass a repository object through the callchain. * ps/config-wo-the-repository: config: hide functions using `the_repository` by default global: prepare for hiding away repo-less config functions config: don't depend on `the_repository` with branch conditions config: don't have setters depend on `the_repository` config: pass repo to functions that rename or copy sections config: pass repo to `git_die_config()` config: pass repo to `git_config_get_expiry_in_days()` config: pass repo to `git_config_get_expiry()` config: pass repo to `git_config_get_max_percent_split_change()` config: pass repo to `git_config_get_split_index()` config: pass repo to `git_config_get_index_threads()` config: expose `repo_config_clear()` config: introduce missing setters that take repo as parameter path: hide functions using `the_repository` by default path: stop relying on `the_repository` in `worktree_git_path()` path: stop relying on `the_repository` when reporting garbage hooks: remove implicit dependency on `the_repository` editor: do not rely on `the_repository` for interactive edits path: expose `do_git_common_path()` as `repo_common_pathv()` path: expose `do_git_path()` as `repo_git_pathv()`
2024-08-21rebase --exec: respect --quietMatheus Tavares1-3/+4
rebase --exec doesn't obey --quiet and ends up printing messages about the command being executed: git rebase HEAD~3 --quiet --exec true Executing: true Executing: true Executing: true Let's fix that by omitting the "Executing" messages when using --quiet. Furthermore, the sequencer code includes a few calls to term_clear_line(), which prints a special character sequence to erase the previous line displayed on stderr (even when nothing was printed yet). For an user running the command interactively, the net effect of calling this function with or without --quiet is the same as the characters are invisible in the terminal. However, when redirecting the output to a file or piping to another command, the presence of these invisible characters is noticeable, and it may break user expectation as --quiet is not being respected. We could skip the term_clear_line() calls when --quiet is used, like we are doing with the "Executing" messages, but it makes much more sense to condition the line cleaning upon stderr being TTY, since these characters are really only useful for TTY outputs. The added test checks for both these two changes. Reported-by: Lincoln Yuji <lincolnyuji@hotmail.com> Reported-by: Rodrigo Siqueira <siqueirajordao@riseup.net> Signed-off-by: Matheus Tavares <matheus.tavb@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-08-14sequencer: release todo list on error pathsPatrick Steinhardt1-19/+47
We're not releasing the `todo_list` in `sequencer_pick_revisions()` when hitting an error path. Restructure the function to have a common exit path such that we can easily clean up the list and thus plug this memory leak. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-08-14builtin/rebase: fix leaking `commit.gpgsign` valuePatrick Steinhardt1-0/+1
In `get_replay_opts()`, we override the `gpg_sign` field that already got populated by `sequencer_init_config()` in case the user has "commit.gpgsign" set in their config. This creates a memory leak because we overwrite the previously assigned value, which may have already pointed to an allocated string. Let's plug the memory leak by freeing the value before we overwrite it. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>