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2023-01-17treewide: always have a valid "index_state.repo" memberÆvar Arnfjörð Bjarmason
When the "repo" member was added to "the_index" in [1] the repo_read_index() was made to populate it, but the unpopulated "the_index" variable didn't get the same treatment. Let's do that in initialize_the_repository() when we set it up, and likewise for all of the current callers initialized an empty "struct index_state". This simplifies code that needs to deal with "the_index" or a custom "struct index_state", we no longer need to second-guess this part of the "index_state" deep in the stack. A recent example of such second-guessing is the "istate->repo ? istate->repo : the_repository" code in [2]. We can now simply use "istate->repo". We're doing this by making use of the INDEX_STATE_INIT() macro (and corresponding function) added in [3], which now have mandatory "repo" arguments. Because we now call index_state_init() in repository.c's initialize_the_repository() we don't need to handle the case where we have a "repo->index" whose "repo" member doesn't match the "repo" we're setting up, i.e. the "Complete the double-reference" code in repo_read_index() being altered here. That logic was originally added in [1], and was working around the lack of what we now have in initialize_the_repository(). For "fsmonitor-settings.c" we can remove the initialization of a NULL "r" argument to "the_repository". This was added back in [4], and was needed at the time for callers that would pass us the "r" from an "istate->repo". Before this change such a change to "fsmonitor-settings.c" would segfault all over the test suite (e.g. in t0002-gitfile.sh). This change has wider eventual implications for "fsmonitor-settings.c". The reason the other lazy loading behavior in it is required (starting with "if (!r->settings.fsmonitor) ..." is because of the previously passed "r" being "NULL". I have other local changes on top of this which move its configuration reading to "prepare_repo_settings()" in "repo-settings.c", as we could now start to rely on it being called for our "r". But let's leave all of that for now, and narrowly remove this particular part of the lazy-loading. 1. 1fd9ae517c4 (repository: add repo reference to index_state, 2021-01-23) 2. ee1f0c242ef (read-cache: add index.skipHash config option, 2023-01-06) 3. 2f6b1eb794e (cache API: add a "INDEX_STATE_INIT" macro/function, add release_index(), 2023-01-12) 4. 1e0ea5c4316 (fsmonitor: config settings are repository-specific, 2022-03-25) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Acked-by: Derrick Stolee <derrickstolee@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-16cache API: add a "INDEX_STATE_INIT" macro/function, add release_index()Ævar Arnfjörð Bjarmason
Hopefully in some not so distant future, we'll get advantages from always initializing the "repo" member of the "struct index_state". To make that easier let's introduce an initialization macro & function. The various ad-hoc initialization of the structure can then be changed over to it, and we can remove the various "0" assignments in discard_index() in favor of calling index_state_init() at the end. While not strictly necessary, let's also change the CALLOC_ARRAY() of various "struct index_state *" to use an ALLOC_ARRAY() followed by index_state_init() instead. We're then adding the release_index() function and converting some callers (including some of these allocations) over to it if they either won't need to use their "struct index_state" again, or are just about to call index_state_init(). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Acked-by: Derrick Stolee <derrickstolee@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13builtin/difftool.c: { 0 }-initialize rather than using memset()Ævar Arnfjörð Bjarmason
Refactor an initialization of a variable added in 03831ef7b50 (difftool: implement the functionality in the builtin, 2017-01-19). This refactoring makes a subsequent change smaller. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Acked-by: Derrick Stolee <derrickstolee@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-11-21{builtin/*,repository}.c: add & use "USE_THE_INDEX_VARIABLE"Ævar Arnfjörð Bjarmason
Split up the "USE_THE_INDEX_COMPATIBILITY_MACROS" into that setting and a more narrow "USE_THE_INDEX_VARIABLE". In the case of these built-ins we only need "the_index" variable, but not the compatibility wrapper for functions we're not using. Let's then have some users of "USE_THE_INDEX_COMPATIBILITY_MACROS" use this more narrow and descriptive define. For context: The USE_THE_INDEX_COMPATIBILITY_MACROS macro was added to test-tool.h in f8adbec9fea (cache.h: flip NO_THE_INDEX_COMPATIBILITY_MACROS switch, 2019-01-24). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-10-30replace and remove run_command_v_opt()René Scharfe
Replace the remaining calls of run_command_v_opt() with run_command() calls and explict struct child_process variables. This is more verbose, but not by much overall. The code becomes more flexible, e.g. it's easy to extend to conditionally add a new argument. Then remove the now unused function and its own flag names, simplifying the run-command API. Suggested-by: Jeff King <peff@peff.net> Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Taylor Blau <me@ttaylorr.com>
2022-10-30use child_process member "args" instead of string array variableRené Scharfe
Use run_command() with a struct child_process variable and populate its "args" member directly instead of building a string array and passing it to run_command_v_opt(). This avoids the use of magic index numbers and makes simplifies the possible addition of more arguments in the future. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Taylor Blau <me@ttaylorr.com>
2022-09-14Merge branch 'ab/unused-annotation'Junio C Hamano
Undoes 'jk/unused-annotation' topic and redoes it to work around Coccinelle rules misfiring false positives in unrelated codepaths. * ab/unused-annotation: git-compat-util.h: use "deprecated" for UNUSED variables git-compat-util.h: use "UNUSED", not "UNUSED(var)"
2022-09-14Merge branch 'jk/unused-annotation'Junio C Hamano
Annotate function parameters that are not used (but cannot be removed for structural reasons), to prepare us to later compile with -Wunused warning turned on. * jk/unused-annotation: is_path_owned_by_current_uid(): mark "report" parameter as unused run-command: mark unused async callback parameters mark unused read_tree_recursive() callback parameters hashmap: mark unused callback parameters config: mark unused callback parameters streaming: mark unused virtual method parameters transport: mark bundle transport_options as unused refs: mark unused virtual method parameters refs: mark unused reflog callback parameters refs: mark unused each_ref_fn parameters git-compat-util: add UNUSED macro
2022-09-01git-compat-util.h: use "UNUSED", not "UNUSED(var)"Ævar Arnfjörð Bjarmason
As reported in [1] the "UNUSED(var)" macro introduced in 2174b8c75de (Merge branch 'jk/unused-annotation' into next, 2022-08-24) breaks coccinelle's parsing of our sources in files where it occurs. Let's instead partially go with the approach suggested in [2] of making this not take an argument. As noted in [1] "coccinelle" will ignore such tokens in argument lists that it doesn't know about, and it's less of a surprise to syntax highlighters. This undoes the "help us notice when a parameter marked as unused is actually use" part of 9b240347543 (git-compat-util: add UNUSED macro, 2022-08-19), a subsequent commit will further tweak the macro to implement a replacement for that functionality. 1. https://lore.kernel.org/git/220825.86ilmg4mil.gmgdl@evledraar.gmail.com/ 2. https://lore.kernel.org/git/220819.868rnk54ju.gmgdl@evledraar.gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-19hashmap: mark unused callback parametersJeff King
Hashmap comparison functions must conform to a particular callback interface, but many don't use all of their parameters. Especially the void cmp_data pointer, but some do not use keydata either (because they can easily form a full struct to pass when doing lookups). Let's mark these to make -Wunused-parameter happy. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-19parse-options: PARSE_OPT_KEEP_UNKNOWN only applies to --optionsSZEDER Gábor
The description of 'PARSE_OPT_KEEP_UNKNOWN' starts with "Keep unknown arguments instead of erroring out". This is a bit misleading, as this flag only applies to unknown --options, while non-option arguments are kept even without this flag. Update the description to clarify this, and rename the flag to PARSE_OPTIONS_KEEP_UNKNOWN_OPT to make this obvious just by looking at the flag name. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-06-02run-command API: rename "env_array" to "env"Ævar Arnfjörð Bjarmason
Start following-up on the rename mentioned in c7c4bdeccf3 (run-command API: remove "env" member, always use "env_array", 2021-11-25) of "env_array" to "env". The "env_array" name was picked in 19a583dc39e (run-command: add env_array, an optional argv_array for env, 2014-10-19) because "env" was taken. Let's not forever keep the oddity of "*_array" for this "struct strvec", but not for its "args" sibling. This commit is almost entirely made with a coccinelle rule[1]. The only manual change here is in run-command.h to rename the struct member itself and to change "env_array" to "env" in the CHILD_PROCESS_INIT initializer. The rest of this is all a result of applying [1]: * make contrib/coccinelle/run_command.cocci.patch * patch -p1 <contrib/coccinelle/run_command.cocci.patch * git add -u 1. cat contrib/coccinelle/run_command.pending.cocci @@ struct child_process E; @@ - E.env_array + E.env @@ struct child_process *E; @@ - E->env_array + E->env I've avoided changing any comments and derived variable names here, that will all be done in the next commit. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-02-04i18n: factorize more 'incompatible options' messagesJean-Noël Avila
Find more incompatible options to factorize. When more than two options are mutually exclusive, print the ones which are actually on the command line. Signed-off-by: Jean-Noël Avila <jn.avila@free.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-05i18n: turn "options are incompatible" into "cannot be used together"Jean-Noël Avila
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr> Reviewed-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-05i18n: refactor "%s, %s and %s are mutually exclusive"Jean-Noël Avila
Use placeholders for constant tokens. The strings are turned into "cannot be used together" Signed-off-by: Jean-Noël Avila <jn.avila@free.fr> Reviewed-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-25difftool: use "env_array" to simplify memory managementÆvar Arnfjörð Bjarmason
Amend code added in 03831ef7b50 (difftool: implement the functionality in the builtin, 2017-01-19) to use the "env_array" in the run_command.[ch] API. Now we no longer need to manage our own "index_env" buffer. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-11Merge branch 'da/difftool'Junio C Hamano
Code clean-up in "git difftool". * da/difftool: difftool: add a missing space to the run_dir_diff() comments difftool: remove an unnecessary call to strbuf_release() difftool: refactor dir-diff to write files using helper functions difftool: create a tmpdir path without repeated slashes
2021-10-03Merge branch 'bs/difftool-msg-tweak'Junio C Hamano
Message tweak. * bs/difftool-msg-tweak: difftool: fix word spacing in the usage strings
2021-10-03Merge branch 'da/difftool-dir-diff-symlink-fix'Junio C Hamano
"git difftool --dir-diff" mishandled symbolic links. * da/difftool-dir-diff-symlink-fix: difftool: fix symlink-file writing in dir-diff mode
2021-09-30difftool: add a missing space to the run_dir_diff() commentsDavid Aguilar
Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-30difftool: remove an unnecessary call to strbuf_release()David Aguilar
The `buf` strbuf is reused again later in the same function, so there is no benefit to calling strbuf_release(). The subsequent usage is already using strbuf_reset() to reset the buffer, so releasing it early is only going to lead to a wasteful reallocation. Remove the early call to strbuf_release(). The same strbuf is already cleaned up in the "finish:" section so nothing is leaked, either. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-30difftool: refactor dir-diff to write files using helper functionsDavid Aguilar
Add a helpers function to handle the unlinking and writing of the dir-diff submodule and symlink stand-in files. Use the helpers to implement the guts of the hashmap loops. This eliminate duplicate code and safeguards the submodules hashmap loop against the symlink-chasing behavior that 5bafb3576a (difftool: fix symlink-file writing in dir-diff mode, 2021-09-22) addressed. The submodules loop should not strictly require the unlink() call that this is introducing to them, but it does not necessarily hurt them either beyond the cost of the extra unlink(). Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-30difftool: create a tmpdir path without repeated slashesDavid Aguilar
The paths generated by difftool are passed to user-facing diff tools. Using paths with repeated slashes in them is a cosmetic blemish that is exposed to users and can be avoided. Use a strbuf to create the buffer used for the dir-diff tmpdir. Strip trailing slashes from the value read from TMPDIR to avoid repeated slashes in the generated paths. Adjust the error handling to avoid leaking strbufs and to avoid returning -1 to cmd_main(). Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-23Merge branch 'da/difftool-dir-diff-symlink-fix' into da/difftoolJunio C Hamano
* da/difftool-dir-diff-symlink-fix: difftool: fix symlink-file writing in dir-diff mode
2021-09-23difftool: fix symlink-file writing in dir-diff modeDavid Aguilar
The difftool dir-diff mode handles symlinks by replacing them with their readlink(2) values. This allows diff tools to see changes to symlinks as if they were regular text diffs with the old and new path values. This is analogous to what "git diff" displays when symlinks change. The temporary diff directories that are created initially contain symlinks because they get checked-out using a temporary index that retains the original symlinks as checked-in to the repository. A bug was introduced when difftool was rewritten in C that made difftool write the readlink(2) contents into the pointed-to file rather than the symlink itself. The write was going through the symlink and writing to its target rather than writing to the symlink path itself. Replace symlinks with raw text files by unlinking the symlink path before writing the readlink(2) content into them. When 18ec800512 (difftool: handle modified symlinks in dir-diff mode, 2017-03-15) added handling for modified symlinks this bug got recorded in the test suite. The tests included the pointed-to symlink target paths. These paths were being reported because difftool was erroneously writing to them, but they should have never been reported nor written. Correct the modified-symlinks test cases by removing the target files from the expected output. Add a test to ensure that symlinks are written with the readlink(2) values and that the target files contain their original content. Reported-by: Alan Blotz <work@blotz.org> Helped-by: Đoàn Trần Công Danh <congdanhqx@gmail.com> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-22difftool: fix word spacing in the usage stringsBagas Sanjaya
Remove spaces in `non - zero` and add a space between the diff format/mode and option parentheses in difftool's usage strings. Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12parse-options API: remove OPTION_ARGUMENT featureÆvar Arnfjörð Bjarmason
As was noted in 1a85b49b87a (parse-options: make OPT_ARGUMENT() more useful, 2019-03-14) there's only ever been one user of the OPT_ARGUMENT(), that user was added in 20de316e334 (difftool: allow running outside Git worktrees with --no-index, 2019-03-14). The OPT_ARGUMENT() feature itself was added way back in 580d5bffdea (parse-options: new option type to treat an option-like parameter as an argument., 2008-03-02), but as discussed in 1a85b49b87a wasn't used until 20de316e334 in 2019. Now that the preceding commit has migrated this code over to using "struct strvec" to manage the "args" member of a "struct child_process", we can just use that directly instead of relying on OPT_ARGUMENT. This has a minor change in behavior in that if we'll pass --no-index we'll now always pass it as the first argument, before we'd pass it in whatever position the caller did. Preserving this was the real value of OPT_ARGUMENT(), but as it turns out we didn't need that either. We can always inject it as the first argument, the other end will parse it just the same. Note that we cannot remove the "out" and "cpidx" members of "struct parse_opt_ctx_t" added in 580d5bffdea, while they were introduced with OPT_ARGUMENT() we since used them for other things. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12difftool: use run_command() API in run_file_diff()Ævar Arnfjörð Bjarmason
Change the run_file_diff() function to use the run_command() API directly, instead of invoking the run_command_v_opt_cd_env() wrapper. This allows it, like run_dir_diff(), to use the "args" from "struct strvec", instead of the "const char **argv" passed into cmd_difftool(). This will be used in the subsequent commit to get rid of OPT_ARGUMENT() from cmd_difftool(). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12difftool: prepare "diff" cmdline in cmd_difftool()Jeff King
We call into either run_dir_diff() or run_file_diff(), each of which sets up a child argv starting with "diff" and some hard-coded options (depending on which mode we're using). Let's extract that logic into the caller, which will make it easier to modify the options for cases which affect both functions. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12difftool: prepare "struct child_process" in cmd_difftool()Ævar Arnfjörð Bjarmason
Move the preparation of the "struct child_process" from run_dir_diff() to its only caller, cmd_difftool(). This is in preparation for migrating run_file_diff() to using the run_command() API directly, and to move more of the shared setup of the two to cmd_difftool(). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-08Merge branch 'ab/cmd-foo-should-return'Junio C Hamano
Code clean-up. * ab/cmd-foo-should-return: builtins + test helpers: use return instead of exit() in cmd_*
2021-06-09builtins + test helpers: use return instead of exit() in cmd_*Ævar Arnfjörð Bjarmason
Change various cmd_* functions that claim to return an "int" to use "return" instead of exit() to indicate an exit code. These were not marked with NORETURN, and by directly exit()-ing we'll skip the cleanup git.c would otherwise do (e.g. closing fd's, erroring if we can't). See run_builtin() in git.c. In the case of shell.c and sh-i18n--envsubst.c this was the result of an incomplete migration to using a cmd_main() in 3f2e2297b9 (add an extra level of indirection to main(), 2016-07-01). This was spotted by SunCC 12.5 on Solaris 10 (gcc210 on the gccfarm). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-16Merge branch 'mt/parallel-checkout-part-3'Junio C Hamano
The final part of "parallel checkout". * mt/parallel-checkout-part-3: ci: run test round with parallel-checkout enabled parallel-checkout: add tests related to .gitattributes t0028: extract encoding helpers to lib-encoding.sh parallel-checkout: add tests related to path collisions parallel-checkout: add tests for basic operations checkout-index: add parallel checkout support builtin/checkout.c: complete parallel checkout support make_transient_cache_entry(): optionally alloc from mem_pool
2021-05-05make_transient_cache_entry(): optionally alloc from mem_poolMatheus Tavares
Allow make_transient_cache_entry() to optionally receive a mem_pool struct in which it should allocate the entry. This will be used in the following patch, to store some transient entries which should persist until parallel checkout finishes. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-04-30Merge branch 'ds/sparse-index-protections'Junio C Hamano
Builds on top of the sparse-index infrastructure to mark operations that are not ready to mark with the sparse index, causing them to fall back on fully-populated index that they always have worked with. * ds/sparse-index-protections: (47 commits) name-hash: use expand_to_path() sparse-index: expand_to_path() name-hash: don't add directories to name_hash revision: ensure full index resolve-undo: ensure full index read-cache: ensure full index pathspec: ensure full index merge-recursive: ensure full index entry: ensure full index dir: ensure full index update-index: ensure full index stash: ensure full index rm: ensure full index merge-index: ensure full index ls-files: ensure full index grep: ensure full index fsck: ensure full index difftool: ensure full index commit: ensure full index checkout: ensure full index ...
2021-04-14difftool: ensure full indexDerrick Stolee
Before iterating over all cache entries, ensure that a sparse index has been expanded to a full one to avoid unexpected behavior. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-03-23entry: extract a header file for entry.c functionsMatheus Tavares
The declarations of entry.c's public functions and structures currently reside in cache.h. Although not many, they contribute to the size of cache.h and, when changed, cause the unnecessary recompilation of modules that don't really use these functions. So let's move them to a new entry.h header. While at it let's also move a comment related to checkout_entry() from entry.c to entry.h as it's more useful to describe the function there. Original-patch-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-11Use new HASHMAP_INIT macro to simplify hashmap initializationElijah Newren
Now that hashamp has lazy initialization and a HASHMAP_INIT macro, hashmaps allocated on the stack can be initialized without a call to hashmap_init() and in some cases makes the code a bit shorter. Convert some callsites over to take advantage of this. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-07-30strvec: rename struct fieldsJeff King
The "argc" and "argv" names made sense when the struct was argv_array, but now they're just confusing. Let's rename them to "nr" (which we use for counts elsewhere) and "v" (which is rather terse, but reads well when combined with typical variable names like "args.v"). Note that we have to update all of the callers immediately. Playing tricks with the preprocessor is hard here, because we wouldn't want to rewrite unrelated tokens. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-07-28strvec: fix indentation in renamed callsJeff King
Code which split an argv_array call across multiple lines, like: argv_array_pushl(&args, "one argument", "another argument", "and more", NULL); was recently mechanically renamed to use strvec, which results in mis-matched indentation like: strvec_pushl(&args, "one argument", "another argument", "and more", NULL); Let's fix these up to align the arguments with the opening paren. I did this manually by sifting through the results of: git jump grep 'strvec_.*,$' and liberally applying my editor's auto-format. Most of the changes are of the form shown above, though I also normalized a few that had originally used a single-tab indentation (rather than our usual style of aligning with the open paren). I also rewrapped a couple of obvious cases (e.g., where previously too-long lines became short enough to fit on one), but I wasn't aggressive about it. In cases broken to three or more lines, the grouping of arguments is sometimes meaningful, and it wasn't worth my time or reviewer time to ponder each case individually. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-07-28strvec: convert builtin/ callers away from argv_array nameJeff King
We eventually want to drop the argv_array name and just use strvec consistently. There's no particular reason we have to do it all at once, or care about interactions between converted and unconverted bits. Because of our preprocessor compat layer, the names are interchangeable to the compiler (so even a definition and declaration using different names is OK). This patch converts all of the files in builtin/ to keep the diff to a manageable size. The conversion was done purely mechanically with: git ls-files '*.c' '*.h' | xargs perl -i -pe ' s/ARGV_ARRAY/STRVEC/g; s/argv_array/strvec/g; ' and then selectively staging files with "git add builtin/". We'll deal with any indentation/style fallouts separately. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-07-28strvec: rename files from argv-array to strvecJeff King
This requires updating #include lines across the code-base, but that's all fairly mechanical, and was done with: git ls-files '*.c' '*.h' | xargs perl -i -pe 's/argv-array.h/strvec.h/' Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07hashmap: remove type arg from hashmap_{get,put,remove}_entryEric Wong
Since these macros already take a `keyvar' pointer of a known type, we can rely on OFFSETOF_VAR to get the correct offset without relying on non-portable `__typeof__' and `offsetof'. Argument order is also rearranged, so `keyvar' and `member' are sequential as they are used as: `keyvar->member' Signed-off-by: Eric Wong <e@80x24.org> Reviewed-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07OFFSETOF_VAR macro to simplify hashmap iteratorsEric Wong
While we cannot rely on a `__typeof__' operator being portable to use with `offsetof'; we can calculate the pointer offset using an existing pointer and the address of a member using pointer arithmetic for compilers without `__typeof__'. This allows us to simplify usage of hashmap iterator macros by not having to specify a type when a pointer of that type is already given. In the future, list iterator macros (e.g. list_for_each_entry) may also be implemented using OFFSETOF_VAR to save hackers the trouble of using container_of/list_entry macros and without relying on non-portable `__typeof__'. v3: use `__typeof__' to avoid clang warnings Signed-off-by: Eric Wong <e@80x24.org> Reviewed-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07hashmap: use *_entry APIs for iterationEric Wong
Inspired by list_for_each_entry in the Linux kernel. Once again, these are somewhat compromised usability-wise by compilers lacking __typeof__ support. Signed-off-by: Eric Wong <e@80x24.org> Reviewed-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07hashmap_cmp_fn takes hashmap_entry paramsEric Wong
Another step in eliminating the requirement of hashmap_entry being the first member of a struct. Signed-off-by: Eric Wong <e@80x24.org> Reviewed-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07hashmap_get{,_from_hash} return "struct hashmap_entry *"Eric Wong
Update callers to use hashmap_get_entry, hashmap_get_entry_from_hash or container_of as appropriate. This is another step towards eliminating the requirement of hashmap_entry being the first field in a struct. Signed-off-by: Eric Wong <e@80x24.org> Reviewed-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07hashmap_get takes "const struct hashmap_entry *"Eric Wong
This is less error-prone than "const void *" as the compiler now detects invalid types being passed. Signed-off-by: Eric Wong <e@80x24.org> Reviewed-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07hashmap_add takes "struct hashmap_entry *"Eric Wong
This is less error-prone than "void *" as the compiler now detects invalid types being passed. Signed-off-by: Eric Wong <e@80x24.org> Reviewed-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07hashmap_entry_init takes "struct hashmap_entry *"Eric Wong
C compilers do type checking to make life easier for us. So rely on that and update all hashmap_entry_init callers to take "struct hashmap_entry *" to avoid future bugs while improving safety and readability. Signed-off-by: Eric Wong <e@80x24.org> Reviewed-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>