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2024-01-09Merge branch 'en/header-cleanup'Junio C Hamano
Remove unused header "#include". * en/header-cleanup: treewide: remove unnecessary includes in source files treewide: add direct includes currently only pulled in transitively trace2/tr2_tls.h: remove unnecessary include submodule-config.h: remove unnecessary include pkt-line.h: remove unnecessary include line-log.h: remove unnecessary include http.h: remove unnecessary include fsmonitor--daemon.h: remove unnecessary includes blame.h: remove unnecessary includes archive.h: remove unnecessary include treewide: remove unnecessary includes in source files treewide: remove unnecessary includes from header files
2024-01-03Merge branch 'la/trailer-cleanups'Junio C Hamano
Code clean-up. * la/trailer-cleanups: trailer: use offsets for trailer_start/trailer_end trailer: find the end of the log message commit: ignore_non_trailer computes number of bytes to ignore
2023-12-26treewide: remove unnecessary includes in source filesElijah Newren
Each of these were checked with gcc -E -I. ${SOURCE_FILE} | grep ${HEADER_FILE} to ensure that removing the direct inclusion of the header actually resulted in that header no longer being included at all (i.e. that no other header pulled it in transitively). ...except for a few cases where we verified that although the header was brought in transitively, nothing from it was directly used in that source file. These cases were: * builtin/credential-cache.c * builtin/pull.c * builtin/send-pack.c Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-10-30Merge branch 'jc/commit-new-underscore-index-fix'Junio C Hamano
Message fix. * jc/commit-new-underscore-index-fix: commit: do not use cryptic "new_index" in end-user facing messages
2023-10-21commit: ignore_non_trailer computes number of bytes to ignoreLinus Arver
ignore_non_trailer() returns the _number of bytes_ that should be ignored from the end of the log message. It does not by itself "ignore" anything. Rename this function to remove the leading "ignore" verb, to sound more like a quantity than an action. Signed-off-by: Linus Arver <linusa@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-10-18commit: do not use cryptic "new_index" in end-user facing messagesJunio C Hamano
These error messages say "new_index" as if that spelling has some significance to the end users (e.g. the file "$GIT_DIR/new_index" has some issues), but that is not the case at all. The i18n folks were made to include the word literally in the translated messages, which was not a good idea at all. Spell it "new index", as we are just telling the users that we failed to create a new index file. The term is expected to be translated to the end-users' languages, not left as if it were a literal file name. This dates all the way back to the first re-implemenation of "git commit" command in C (the scripted version did not have such wording in its error messages), in f5bbc322 (Port git commit to C., 2007-11-08). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-08Merge branch 'js/empty-index-fixes'Junio C Hamano
A few places failed to differenciate the case where the index is truly empty (nothing added) and we haven't yet read from the on-disk index file, which have been corrected. * js/empty-index-fixes: commit -a -m: allow the top-level tree to become empty again split-index: accept that a base index can be empty do_read_index(): always mark index as initialized unless erroring out
2023-07-06Merge branch 'gc/config-context'Junio C Hamano
Reduce reliance on a global state in the config reading API. * gc/config-context: config: pass source to config_parser_event_fn_t config: add kvi.path, use it to evaluate includes config.c: remove config_reader from configsets config: pass kvi to die_bad_number() trace2: plumb config kvi config.c: pass ctx with CLI config config: pass ctx with config files config.c: pass ctx in configsets config: add ctx arg to config_fn_t urlmatch.h: use config_fn_t type config: inline git_color_default_config
2023-07-06Merge branch 'cw/strbuf-cleanup'Junio C Hamano
Move functions that are not about pure string manipulation out of strbuf.[ch] * cw/strbuf-cleanup: strbuf: remove global variable path: move related function to path object-name: move related functions to object-name credential-store: move related functions to credential-store file abspath: move related functions to abspath strbuf: clarify dependency strbuf: clarify API boundary
2023-06-30Merge branch 'en/header-split-cache-h-part-3'Junio C Hamano
Header files cleanup. * en/header-split-cache-h-part-3: (28 commits) fsmonitor-ll.h: split this header out of fsmonitor.h hash-ll, hashmap: move oidhash() to hash-ll object-store-ll.h: split this header out of object-store.h khash: name the structs that khash declares merge-ll: rename from ll-merge git-compat-util.h: remove unneccessary include of wildmatch.h builtin.h: remove unneccessary includes list-objects-filter-options.h: remove unneccessary include diff.h: remove unnecessary include of oidset.h repository: remove unnecessary include of path.h log-tree: replace include of revision.h with simple forward declaration cache.h: remove this no-longer-used header read-cache*.h: move declarations for read-cache.c functions from cache.h repository.h: move declaration of the_index from cache.h merge.h: move declarations for merge.c from cache.h diff.h: move declaration for global in diff.c from cache.h preload-index.h: move declarations for preload-index.c from elsewhere sparse-index.h: move declarations for sparse-index.c from cache.h name-hash.h: move declarations for name-hash.c from cache.h run-command.h: move declarations for run-command.c from cache.h ...
2023-06-29commit -a -m: allow the top-level tree to become empty againJohannes Schindelin
In 03267e8656c (commit: discard partial cache before (re-)reading it, 2022-11-08), a memory leak was plugged by discarding any partial index before re-reading it. The problem with this memory leak fix is that it was based on an incomplete understanding of the logic introduced in 7168624c353 (Do not generate full commit log message if it is not going to be used, 2007-11-28). That logic was introduced to add a shortcut when committing without editing the commit message interactively. A part of that logic was to ensure that the index was read into memory: if (!active_nr && read_cache() < 0) die(...) Translation to English: If the index has not yet been read, read it, and if that fails, error out. That logic was incorrect, though: It used `!active_nr` as an indicator that the index was not yet read. Usually this is not a problem because in the vast majority of instances, the index contains at least one entry. And it was natural to do it this way because at the time that condition was introduced, the `index_state` structure had no explicit flag to indicate that it was initialized: This flag was only introduced in 913e0e99b6a (unpack_trees(): protect the handcrafted in-core index from read_cache(), 2008-08-23), but that commit did not adjust the code path where no index file was found and a new, pristine index was initialized. Now, when the index does not contain any entry (which is quite common in Git's test suite because it starts quite a many repositories from scratch), subsequent calls to `do_read_index()` will mistake the index not to be initialized, and read it again unnecessarily. This is a problem because after initializing the empty index e.g. the `cache_tree` in that index could have been initialized before a subsequent call to `do_read_index()` wants to ensure an initialized index. And if that subsequent call mistakes the index not to have been initialized, it would lead to leaked memory. The correct fix for that memory leak is to adjust the condition so that it does not mistake `active_nr == 0` to mean that the index has not yet been read. Using the `initialized` flag instead, we avoid that mistake, and as a bonus we can fix a bug at the same time that was introduced by the memory leak fix: When deleting all tracked files and then asking `git commit -a -m ...` to commit the result, Git would internally update the index, then discard and re-read the index undoing the update, and fail to commit anything. This fixes https://github.com/git-for-windows/git/issues/4462 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-29config: pass kvi to die_bad_number()Glen Choo
Plumb "struct key_value_info" through all code paths that end in die_bad_number(), which lets us remove the helper functions that read analogous values from "struct config_reader". As a result, nothing reads config_reader.config_kvi any more, so remove that too. In config.c, this requires changing the signature of git_configset_get_value() to 'return' "kvi" in an out parameter so that git_configset_get_<type>() can pass it to git_config_<type>(). Only numeric types will use "kvi", so for non-numeric types (e.g. git_configset_get_string()), pass NULL to indicate that the out parameter isn't needed. Outside of config.c, config callbacks now need to pass "ctx->kvi" to any of the git_config_<type>() functions that parse a config string into a number type. Included is a .cocci patch to make that refactor. The only exceptional case is builtin/config.c, where git_config_<type>() is called outside of a config callback (namely, on user-provided input), so config source information has never been available. In this case, die_bad_number() defaults to a generic, but perfectly descriptive message. Let's provide a safe, non-NULL for "kvi" anyway, but make sure not to change the message. Signed-off-by: Glen Choo <chooglen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-29config: add ctx arg to config_fn_tGlen Choo
Add a new "const struct config_context *ctx" arg to config_fn_t to hold additional information about the config iteration operation. config_context has a "struct key_value_info kvi" member that holds metadata about the config source being read (e.g. what kind of config source it is, the filename, etc). In this series, we're only interested in .kvi, so we could have just used "struct key_value_info" as an arg, but config_context makes it possible to add/adjust members in the future without changing the config_fn_t signature. We could also consider other ways of organizing the args (e.g. moving the config name and value into config_context or key_value_info), but in my experiments, the incremental benefit doesn't justify the added complexity (e.g. a config_fn_t will sometimes invoke another config_fn_t but with a different config value). In subsequent commits, the .kvi member will replace the global "struct config_reader" in config.c, making config iteration a global-free operation. It requires much more work for the machinery to provide meaningful values of .kvi, so for now, merely change the signature and call sites, pass NULL as a placeholder value, and don't rely on the arg in any meaningful way. Most of the changes are performed by contrib/coccinelle/config_fn_ctx.pending.cocci, which, for every config_fn_t: - Modifies the signature to accept "const struct config_context *ctx" - Passes "ctx" to any inner config_fn_t, if needed - Adds UNUSED attributes to "ctx", if needed Most config_fn_t instances are easily identified by seeing if they are called by the various config functions. Most of the remaining ones are manually named in the .cocci patch. Manual cleanups are still needed, but the majority of it is trivial; it's either adjusting config_fn_t that the .cocci patch didn't catch, or adding forward declarations of "struct config_context ctx" to make the signatures make sense. The non-trivial changes are in cases where we are invoking a config_fn_t outside of config machinery, and we now need to decide what value of "ctx" to pass. These cases are: - trace2/tr2_cfg.c:tr2_cfg_set_fl() This is indirectly called by git_config_set() so that the trace2 machinery can notice the new config values and update its settings using the tr2 config parsing function, i.e. tr2_cfg_cb(). - builtin/checkout.c:checkout_main() This calls git_xmerge_config() as a shorthand for parsing a CLI arg. This might be worth refactoring away in the future, since git_xmerge_config() can call git_default_config(), which can do much more than just parsing. Handle them by creating a KVI_INIT macro that initializes "struct key_value_info" to a reasonable default, and use that to construct the "ctx" arg. Signed-off-by: Glen Choo <chooglen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-26Merge branch 'jk/commit-use-no-divider-with-interpret-trailers'Junio C Hamano
When "git commit --trailer=..." invokes the interpret-trailers machinery, it knows what it feeds to interpret-trailers is a full log message without any patch, but failed to express that by passing the "--no-divider" option, which has been corrected. * jk/commit-use-no-divider-with-interpret-trailers: commit: pass --no-divider to interpret-trailers
2023-06-21repository: remove unnecessary include of path.hElijah Newren
This also made it clear that several .c files that depended upon path.h were missing a #include for it; add the missing includes while at it. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21cache.h: remove this no-longer-used headerElijah Newren
Since this header showed up in some places besides just #include statements, update/clean-up/remove those other places as well. Note that compat/fsmonitor/fsm-path-utils-darwin.c previously got away with violating the rule that all files must start with an include of git-compat-util.h (or a short-list of alternate headers that happen to include it first). This change exposed the violation and caused it to stop building correctly; fix it by having it include git-compat-util.h first, as per policy. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21read-cache*.h: move declarations for read-cache.c functions from cache.hElijah Newren
For the functions defined in read-cache.c, move their declarations from cache.h to a new header, read-cache-ll.h. Also move some related inline functions from cache.h to read-cache.h. The purpose of the read-cache-ll.h/read-cache.h split is that about 70% of the sites don't need the inline functions and the extra headers they include. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21preload-index.h: move declarations for preload-index.c from elsewhereElijah Newren
We already have a preload-index.c file; move the declarations for the functions in that file into a new preload-index.h. These were previously split between cache.h and repository.h. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21sparse-index.h: move declarations for sparse-index.c from cache.hElijah Newren
Note in particular that this reverses the decision made in 118a2e8bde0 ("cache: move ensure_full_index() to cache.h", 2021-04-01). Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21add: modify add_files_to_cache() to avoid globalsElijah Newren
The function add_files_to_cache() is used by all three of builtin/{add, checkout, commit}.c. That suggests this is common library code, and should be moved somewhere else, like read-cache.c. However, the function and its helpers made use of two global variables that made straight code movement difficult: * the_index * include_sparse The latter was perhaps more problematic since it was only accessible in builtin/add.c but was still affecting builtin/checkout.c and builtin/commit.c without this fact being very clear from the code. I'm not sure if the other two callers would want to add a `--sparse` flag similar to add.c to get non-default behavior, but exposing this dependence will help if we ever decide we do want to add such a flag. Modify add_files_to_cache() and its helpers to accept the necessary arguments instead of relying on globals. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-17commit: pass --no-divider to interpret-trailersJeff King
When git-commit sees any "--trailer" options, it passes the COMMIT_EDITMSG file through git-interpret-trailers. But it does so without passing --no-divider, which means that interpret-trailers will look for a "---" divider to signal the end of the commit message. That behavior doesn't make any sense in this context; we know we have a complete and solitary commit message, not something we have to further parse. And as a result, we'll do the wrong thing if the commit message contains a "---" marker (which otherwise is not syntactically significant), inserting any new trailers at the wrong spot. We can fix this by passing --no-divider. This is the exact situation for which it was added in 1688c9a489 (interpret-trailers: allow suppressing "---" divider, 2018-08-22). As noted in the message for that commit, it just adds the mechanism, and further patches were needed to trigger it from various callers. We did that back then in a few spots, like ffce7f590f (sequencer: ignore "---" divider when parsing trailers, 2018-08-22), but obviously missed this one. Reported-by: <eric.frederich@siemens.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-12strbuf: remove global variableCalvin Wan
As a library that only interacts with other primitives, strbuf should not utilize the comment_line_char global variable within its functions. Therefore, add an additional parameter for functions that use comment_line_char and refactor callers to pass it in instead. strbuf_stripspace() removes the skip_comments boolean and checks if comment_line_char is a non-NUL character to determine whether to skip comments or not. Signed-off-by: Calvin Wan <calvinwan@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-03surround %s with quotes when failed to lookup commitTeng Long
The output may become confusing to recognize if the user accidentally gave an extra opening space, like: $ git commit --fixup=" 6d6360b67e99c2fd82d64619c971fdede98ee74b" fatal: could not lookup commit 6d6360b67e99c2fd82d64619c971fdede98ee74b and it will be better if we surround the %s specifier with single quotes. Signed-off-by: Teng Long <dyroneteng@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-11editor: move editor-related functions and declarations into common fileElijah Newren
cache.h and strbuf.[ch] had editor-related functions. Move these into editor.[ch]. Signed-off-by: Elijah Newren <newren@gmail.com> Acked-by: Calvin Wan <calvinwan@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-11object-name.h: move declarations for object-name.c functions from cache.hElijah Newren
Signed-off-by: Elijah Newren <newren@gmail.com> Acked-by: Calvin Wan <calvinwan@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-11treewide: be explicit about dependence on advice.hElijah Newren
Dozens of files made use of advice functions, without explicitly including advice.h. This made it more difficult to find which files could remove a dependence on cache.h. Make C files explicitly include advice.h if they are using it. Signed-off-by: Elijah Newren <newren@gmail.com> Acked-by: Calvin Wan <calvinwan@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-04Merge branch 'ab/remove-implicit-use-of-the-repository' into ↵Junio C Hamano
en/header-split-cache-h * ab/remove-implicit-use-of-the-repository: libs: use "struct repository *" argument, not "the_repository" post-cocci: adjust comments for recent repo_* migration cocci: apply the "revision.h" part of "the_repository.pending" cocci: apply the "rerere.h" part of "the_repository.pending" cocci: apply the "refs.h" part of "the_repository.pending" cocci: apply the "promisor-remote.h" part of "the_repository.pending" cocci: apply the "packfile.h" part of "the_repository.pending" cocci: apply the "pretty.h" part of "the_repository.pending" cocci: apply the "object-store.h" part of "the_repository.pending" cocci: apply the "diff.h" part of "the_repository.pending" cocci: apply the "commit.h" part of "the_repository.pending" cocci: apply the "commit-reach.h" part of "the_repository.pending" cocci: apply the "cache.h" part of "the_repository.pending" cocci: add missing "the_repository" macros to "pending" cocci: sort "the_repository" rules by header cocci: fix incorrect & verbose "the_repository" rules cocci: remove dead rule from "the_repository.pending.cocci"
2023-03-28cocci: apply the "pretty.h" part of "the_repository.pending"Ævar Arnfjörð Bjarmason
Apply the part of "the_repository.pending.cocci" pertaining to "pretty.h". Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-28cocci: apply the "commit.h" part of "the_repository.pending"Ævar Arnfjörð Bjarmason
Apply the part of "the_repository.pending.cocci" pertaining to "commit.h". Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-28cocci: apply the "cache.h" part of "the_repository.pending"Ævar Arnfjörð Bjarmason
Apply the part of "the_repository.pending.cocci" pertaining to "cache.h". Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-21environment: move comment_line_char from cache.hElijah Newren
This is one step towards making strbuf.c not depend upon cache.h. Additional steps will follow in subsequent commits. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-21treewide: be explicit about dependence on gettext.hElijah Newren
Dozens of files made use of gettext functions, without explicitly including gettext.h. This made it more difficult to find which files could remove a dependence on cache.h. Make C files explicitly include gettext.h if they are using it. However, while compat/fsmonitor/fsm-ipc-darwin.c should also gain an include of gettext.h, it was left out to avoid conflicting with an in-flight topic. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-18Merge branch 'jc/gpg-lazy-init'Junio C Hamano
Instead of forcing each command to choose to honor GPG related configuration variables, make the subsystem lazily initialize itself. * jc/gpg-lazy-init: drop pure pass-through config callbacks gpg-interface: lazily initialize and read the configuration
2023-02-10cocci & cache.h: remove "USE_THE_INDEX_COMPATIBILITY_MACROS"Ævar Arnfjörð Bjarmason
Have the last users of "USE_THE_INDEX_COMPATIBILITY_MACROS" use the underlying *_index() variants instead. Now all previous users of "USE_THE_INDEX_COMPATIBILITY_MACROS" have been migrated away from the wrapper macros, and if applicable to use the "USE_THE_INDEX_VARIABLE" added in [1]. Let's leave the "index-compatibility.cocci" in place, even though it won't be doing anything on "master". It will benefit any out-of-tree code that need to use these compatibility macros. We can eventually remove it. 1. bdafeae0b9c (cache.h & test-tool.h: add & use "USE_THE_INDEX_VARIABLE", 2022-11-19) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10cache-tree API: remove redundant update_main_cache_tree()Ævar Arnfjörð Bjarmason
Remove the redundant update_main_cache_tree() function, and make its users use cache_tree_update() instead. The behavior of populating the "the_index.cache_tree" if it wasn't present already was needed when this function was introduced in [1], but it hasn't been needed since [2]; The "cache_tree_update()" will now lazy-allocate, so there's no need for the wrapper. 1. 996277c5206 (Refactor cache_tree_update idiom from commit, 2011-12-06) 2. fb0882648e0 (cache-tree: clean up cache_tree_update(), 2021-01-23) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10cocci & cache.h: fully apply "active_nr" part of index-compatibilityÆvar Arnfjörð Bjarmason
Apply the "active_nr" part of "index-compatibility.pending.cocci", which was left out in [1] due to an in-flight conflict. As of [2] the topic we conflicted with has been merged to "master", so we can fully apply this rule. 1. dc594180d9e (cocci & cache.h: apply variable section of "pending" index-compatibility, 2022-11-19) 2. 9ea1378d046 (Merge branch 'ab/various-leak-fixes', 2022-12-14) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-10gpg-interface: lazily initialize and read the configurationJunio C Hamano
Instead of forcing the porcelain commands to always read the configuration variables related to the signing and verifying signatures, lazily initialize the necessary subsystem on demand upon the first use. This hopefully would make it more future-proof as we do not have to think and decide whether we should call git_gpg_config() in the git_config() callback for each command. A few git_config() callback functions that used to be custom callbacks are now just a thin wrapper around git_default_config(). We could further remove, git_FOO_config and replace calls to git_config(git_FOO_config) with git_config(git_default_config), but to make it clear which ones are affected and the effect is only the removal of git_gpg_config(), it is vastly preferred not to do such a change in this step (they can be done on top once the dust settled). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-12-14Merge branch 'ab/various-leak-fixes'Junio C Hamano
Various leak fixes. * ab/various-leak-fixes: built-ins: use free() not UNLEAK() if trivial, rm dead code revert: fix parse_options_concat() leak cherry-pick: free "struct replay_opts" members rebase: don't leak on "--abort" connected.c: free the "struct packed_git" sequencer.c: fix "opts->strategy" leak in read_strategy_opts() ls-files: fix a --with-tree memory leak revision API: call graph_clear() in release_revisions() unpack-file: fix ancient leak in create_temp_file() built-ins & libs & helpers: add/move destructors, fix leaks dir.c: free "ident" and "exclude_per_dir" in "struct untracked_cache" read-cache.c: clear and free "sparse_checkout_patterns" commit: discard partial cache before (re-)reading it {reset,merge}: call discard_index() before returning tests: mark tests as passing with SANITIZE=leak
2022-11-21built-ins: use free() not UNLEAK() if trivial, rm dead codeÆvar Arnfjörð Bjarmason
For a lot of uses of UNLEAK() it would be quite tricky to release the memory involved, or we're missing the relevant *_(release|clear)() functions. But in these cases we have them already, and can just invoke them on the variable(s) involved, instead of UNLEAK(). For "builtin/worktree.c" the UNLEAK() was also added in [1], but the struct member it's unleaking was removed in [2]. The only non-"int" member of that structure is "const char *keep_locked", which comes to us via "argv" or a string literal[3]. We have good visibility via the compiler and tooling (e.g. SANITIZE=address) on bad free()-ing, but none on UNLEAK() we don't need anymore. So let's prefer releasing the memory when it's easy. For "bugreport", "worktree" and "config" we need to start using a "ret = ..." return pattern. For "builtin/bugreport.c" these UNLEAK() were added in [4], and for "builtin/config.c" in [1]. For "config" the code seen here was the only user of the "value" variable. For "ACTION_{RENAME,REMOVE}_SECTION" we need to be sure to return the right exit code in the cases where we were relying on falling through to the top-level. I think there's still a use-case for UNLEAK(), but hat it's changed since then. Using it so that "we can see the real leaks" is counter-productive in these cases. It's more useful to have UNLEAK() be a marker of the remaining odd cases where it's hard to free() the memory for whatever reason. With this change less than 20 of them remain in-tree. 1. 0e5bba53af7 (add UNLEAK annotation for reducing leak false positives, 2017-09-08) 2. d861d34a6ed (worktree: remove extra members from struct add_opts, 2018-04-24) 3. 0db4961c49b (worktree: teach `add` to accept --reason <string> with --lock, 2021-07-15) 4. 0e5bba53af7 and 00d8c311050 (commit: fix "author_ident" leak, 2022-05-12). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Taylor Blau <me@ttaylorr.com>
2022-11-21commit: discard partial cache before (re-)reading itÆvar Arnfjörð Bjarmason
The read_cache() in prepare_to_commit() would end up clobbering the pointer we had for a previously populated "the_index.cache_tree" in the very common case of "git commit" stressed by e.g. the tests being changed here. We'd populate "the_index.cache_tree" by calling "update_main_cache_tree" in prepare_index(), but would not end up with a "fully prepared" index. What constitutes an existing index is clearly overly fuzzy, here we'll check "active_nr" (aka "the_index.cache_nr"), but our "the_index.cache_tree" might have been malloc()'d already. Thus the code added in 11c8a74a64a (commit: write cache-tree data when writing index anyway, 2011-12-06) would end up allocating the "cache_tree", and would interact here with code added in 7168624c353 (Do not generate full commit log message if it is not going to be used, 2007-11-28). The result was a very common memory leak. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Taylor Blau <me@ttaylorr.com>
2022-11-21cocci: apply "pending" index-compatibility to some "builtin/*.c"Ævar Arnfjörð Bjarmason
Apply "index-compatibility.pending.cocci" rule to "builtin/*", but exclude those where we conflict with in-flight changes. As a result some of them end up using only "the_index", so let's have them use the more narrow "USE_THE_INDEX_VARIABLE" rather than "USE_THE_INDEX_COMPATIBILITY_MACROS". Manual changes not made by coccinelle, that were squashed in: * Whitespace-wrap argument lists for repo_hold_locked_index(), repo_read_index_preload() and repo_refresh_and_write_index(), in cases where the line became too long after the transformation. * Change "refresh_cache()" to "refresh_index()" in a comment in "builtin/update-index.c". * For those whose call was followed by perror("<macro-name>"), change it to perror("<function-name>"), referring to the new function. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-11-21cocci & cache.h: apply variable section of "pending" index-compatibilityÆvar Arnfjörð Bjarmason
Mostly apply the part of "index-compatibility.pending.cocci" that renames the global variables like "active_nr", which are a shorthand to referencing (in that case) a struct member as "the_index.cache_nr". In doing so move more of "index-compatibility.pending.cocci" to "index-compatibility.cocci". In the case of "active_nr" we'd have a textual conflict with "ab/various-leak-fixes" in "next"[1]. Let's exclude that specific case while moving the rule over from "pending". 1. 407b94280f8 (commit: discard partial cache before (re-)reading it, 2022-11-08) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-11-21cocci & cache.h: apply a selection of "pending" index-compatibilityÆvar Arnfjörð Bjarmason
Apply a selection of rules in "index-compatibility.pending.cocci" tree-wide, and in doing so migrate them to "index-compatibility.cocci". As in preceding commits the only manual changes here are the macro removals in "cache.h", and the update to the '*.cocci" rules. The rest of the C code changes are the result of applying those updated rules. Move rules for some rarely used cache compatibility macros from "index-compatibility.pending.cocci" to "index-compatibility.cocci" and apply them. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-11-21cocci & cache.h: remove rarely used "the_index" compat macrosÆvar Arnfjörð Bjarmason
Since 4aab5b46f44 (Make read-cache.c "the_index" free., 2007-04-01) we've been undergoing a slow migration away from these macros, but haven't made much progress since f8adbec9fea (cache.h: flip NO_THE_INDEX_COMPATIBILITY_MACROS switch, 2019-01-24). Let's move forward a bit by changing the users of those macros that are rare enough that we can convert them in one go, and then remove the compatibility shim. The only manual change to the C code here is to "cache.h", the rest is all the result of applying the new "index-compatibility.cocci". Even though it's a one-off, let's keep the coccinelle rules for now. We'll extend them in subsequent commits, and this will help anything that's in-flight or out-of-tree to migrate. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-10-28Merge branch 'ab/doc-synopsis-and-cmd-usage'Junio C Hamano
The short-help text shown by "git cmd -h" and the synopsis text shown at the beginning of "git help cmd" have been made more consistent. * ab/doc-synopsis-and-cmd-usage: (34 commits) tests: assert consistent whitespace in -h output tests: start asserting that *.txt SYNOPSIS matches -h output doc txt & -h consistency: make "worktree" consistent worktree: define subcommand -h in terms of command -h reflog doc: list real subcommands up-front doc txt & -h consistency: make "commit" consistent doc txt & -h consistency: make "diff-tree" consistent doc txt & -h consistency: use "[<label>...]" for "zero or more" doc txt & -h consistency: make "annotate" consistent doc txt & -h consistency: make "stash" consistent doc txt & -h consistency: add missing options doc txt & -h consistency: use "git foo" form, not "git-foo" doc txt & -h consistency: make "bundle" consistent doc txt & -h consistency: make "read-tree" consistent doc txt & -h consistency: make "rerere" consistent doc txt & -h consistency: add missing options and labels doc txt & -h consistency: make output order consistent doc txt & -h consistency: add or fix optional "--" syntax doc txt & -h consistency: fix mismatching labels doc SYNOPSIS & -h: use "-" to separate words in labels, not "_" ...
2022-10-13doc txt & -h consistency: make "commit" consistentÆvar Arnfjörð Bjarmason
Make the "-h" output of "git commit" consistent with the *.txt version by exhaustively listing the options that it takes. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-10-13doc txt & -h consistency: use "[<label>...]" for "zero or more"Ævar Arnfjörð Bjarmason
Correct uses of "<label>..." where we really meant to say "[<label>...]", i.e. the command in question taken an optional set of "<label>". As the CodingGuidelines notes "[o]ptional parts [should be] enclosed in square brackets". Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-10-06commit: avoid writing to global in option callbackJeff King
The callback function for --trailer writes directly to the global trailer_args and ignores opt->value completely. This is OK, since that's where we expect to find the value. But it does mean the option declaration isn't as clear. E.g., we have: OPT_BOOL(0, "reset-author", &renew_authorship, ...), OPT_CALLBACK_F(0, "trailer", NULL, ..., opt_pass_trailer) In the first one we can see where the result will be stored, but in the second, we get only NULL, and you have to go read the callback. Let's pass &trailer_args, and use it in the callback. As a bonus, this silences a -Wunused-parameter warning. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-06-08Merge branch 'ab/plug-leak-in-revisions'Junio C Hamano
Plug the memory leaks from the trickiest API of all, the revision walker. * ab/plug-leak-in-revisions: (27 commits) revisions API: add a TODO for diff_free(&revs->diffopt) revisions API: have release_revisions() release "topo_walk_info" revisions API: have release_revisions() release "date_mode" revisions API: call diff_free(&revs->pruning) in revisions_release() revisions API: release "reflog_info" in release revisions() revisions API: clear "boundary_commits" in release_revisions() revisions API: have release_revisions() release "prune_data" revisions API: have release_revisions() release "grep_filter" revisions API: have release_revisions() release "filter" revisions API: have release_revisions() release "cmdline" revisions API: have release_revisions() release "mailmap" revisions API: have release_revisions() release "commits" revisions API users: use release_revisions() for "prune_data" users revisions API users: use release_revisions() with UNLEAK() revisions API users: use release_revisions() in builtin/log.c revisions API users: use release_revisions() in http-push.c revisions API users: add "goto cleanup" for release_revisions() stash: always have the owner of "stash_info" free it revisions API users: use release_revisions() needing REV_INFO_INIT revision.[ch]: document and move code declared around "init" ...
2022-05-24Merge branch 'ab/commit-plug-leaks'Junio C Hamano
Leakfix in the top-level called-once function. * ab/commit-plug-leaks: commit: fix "author_ident" leak