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2023-06-13Merge branch 'jc/diff-s-with-other-options'Junio C Hamano
The "-s" (silent, squelch) option of the "diff" family of commands did not interact with other options that specify the output format well. This has been cleaned up so that it will clear all the formatting options given before. * jc/diff-s-with-other-options: diff: fix interaction between the "-s" option and other options
2023-05-15Merge branch 'jc/dirstat-plug-leaks'Junio C Hamano
"git diff --dirstat" leaked memory, which has been plugged. * jc/dirstat-plug-leaks: diff: plug leaks in dirstat diff: refactor common tail part of dirstat computation
2023-05-10Merge branch 'en/header-split-cache-h-part-2'Junio C Hamano
More header clean-up. * en/header-split-cache-h-part-2: (22 commits) reftable: ensure git-compat-util.h is the first (indirect) include diff.h: reduce unnecessary includes object-store.h: reduce unnecessary includes commit.h: reduce unnecessary includes fsmonitor: reduce includes of cache.h cache.h: remove unnecessary headers treewide: remove cache.h inclusion due to previous changes cache,tree: move basic name compare functions from read-cache to tree cache,tree: move cmp_cache_name_compare from tree.[ch] to read-cache.c hash-ll.h: split out of hash.h to remove dependency on repository.h tree-diff.c: move S_DIFFTREE_IFXMIN_NEQ define from cache.h dir.h: move DTYPE defines from cache.h versioncmp.h: move declarations for versioncmp.c functions from cache.h ws.h: move declarations for ws.c functions from cache.h match-trees.h: move declarations for match-trees.c functions from cache.h pkt-line.h: move declarations for pkt-line.c functions from cache.h base85.h: move declarations for base85.c functions from cache.h copy.h: move declarations for copy.c functions from cache.h server-info.h: move declarations for server-info.c functions from cache.h packfile.h: move pack_window and pack_entry from cache.h ...
2023-05-06diff: fix interaction between the "-s" option and other optionsJunio C Hamano
Sergey Organov noticed and reported "--patch --no-patch --raw" behaves differently from just "--raw". It turns out that there are a few interesting bugs in the implementation and documentation. * First, the documentation for "--no-patch" was unclear that it could be read to mean "--no-patch" countermands an earlier "--patch" but not other things. The intention of "--no-patch" ever since it was introduced at d09cd15d (diff: allow --no-patch as synonym for -s, 2013-07-16) was to serve as a synonym for "-s", so "--raw --patch --no-patch" should have produced no output, but it can be (mis)read to allow showing only "--raw" output. * Then the interaction between "-s" and other format options were poorly implemented. Modern versions of Git uses one bit each to represent formatting options like "--patch", "--stat" in a single output_format word, but for historical reasons, "-s" also is represented as another bit in the same word. This allows two interesting bugs to happen, and we have both X-<. (1) After setting a format bit, then setting NO_OUTPUT with "-s", the code to process another "--<format>" option drops the NO_OUTPUT bit to allow output to be shown again. However, the code to handle "-s" only set NO_OUTPUT without unsetting format bits set earlier, so the earlier format bit got revealed upon seeing the second "--<format>" option. This is the problem Sergey observed. (2) After setting NO_OUTPUT with "-s", code to process "--<format>" option can forget to unset NO_OUTPUT, leaving the command still silent. It is tempting to change the meaning of "--no-patch" to mean "disable only the patch format output" and reimplement "-s" as "not showing anything", but it would be an end-user visible change in behavior. Let's fix the interactions of these bits to first make "-s" work as intended. The fix is conceptually very simple. * Whenever we set DIFF_FORMAT_FOO because we saw the "--foo" option (e.g. DIFF_FORMAT_RAW is set when the "--raw" option is given), we make sure we drop DIFF_FORMAT_NO_OUTPUT. We forgot to do so in some of the options and caused (2) above. * When processing "-s" option, we should not just set DIFF_FORMAT_NO_OUTPUT bit, but clear other DIFF_FORMAT_* bits. We didn't do so and retained format bits set by options previously seen, causing (1) above. It is even more tempting to lose NO_OUTPUT bit and instead take output_format word being 0 as its replacement, but that would break the mechanism "git show" uses to default to "--patch" output, where the distinction between telling the command to be silent with "-s" and having no output format specified on the command line matters, and an explicit output format given on the command line should not be "combined" with the default "--patch" format. So, while we cannot lose the NO_OUTPUT bit, as a follow-up work, we may want to replace it with OPTION_GIVEN bit, and * make "--patch", "--raw", etc. set DIFF_FORMAT_$format bit and DIFF_FORMAT_OPTION_GIVEN bit on for each format. "--no-raw", etc. will set off DIFF_FORMAT_$format bit but still record the fact that we saw an option from the command line by setting DIFF_FORMAT_OPTION_GIVEN bit. * make "-s" (and its synonym "--no-patch") clear all other bits and set only the DIFF_FORMAT_OPTION_GIVEN bit on. which I suspect would make the code much cleaner without breaking any end-user expectations. Once that is in place, transitioning "--no-patch" to mean the counterpart of "--patch", just like "--no-raw" only defeats an earlier "--raw", would be quite simple at the code level. The social cost of migrating the end-user expectations might be too great for it to be worth, but at least the "GIVEN" bit clean-up alone may be worth it. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-05-06diff: plug leaks in dirstatJunio C Hamano
The array of dirstat_file contained in the dirstat_dir structure is not freed after the processing ends. Unfortunately, the member that points at the array, .files, is incremented as the gather_dirstat() function recursively walks it, and this needs to be plugged by remembering the beginning of the array before gather_dirstat() mucks with it and freeing it after we are done. We can mark t4047 as leak-free. t4000, which is marked as leak-free, now can exercise dirstat in it, which will happen next. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-05-06diff: refactor common tail part of dirstat computationJunio C Hamano
This will become useful when we plug leaks in these two functions. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-05-02Merge branch 'tb/ban-strtok'Junio C Hamano
Mark strtok() and strtok_r() to be banned. * tb/ban-strtok: banned.h: mark `strtok()` and `strtok_r()` as banned t/helper/test-json-writer.c: avoid using `strtok()` t/helper/test-oidmap.c: avoid using `strtok()` t/helper/test-hashmap.c: avoid using `strtok()` string-list: introduce `string_list_setlen()` string-list: multi-delimiter `string_list_split_in_place()`
2023-04-25Merge branch 'en/header-split-cache-h'Junio C Hamano
Header clean-up. * en/header-split-cache-h: (24 commits) protocol.h: move definition of DEFAULT_GIT_PORT from cache.h mailmap, quote: move declarations of global vars to correct unit treewide: reduce includes of cache.h in other headers treewide: remove double forward declaration of read_in_full cache.h: remove unnecessary includes treewide: remove cache.h inclusion due to pager.h changes pager.h: move declarations for pager.c functions from cache.h treewide: remove cache.h inclusion due to editor.h changes editor: move editor-related functions and declarations into common file treewide: remove cache.h inclusion due to object.h changes object.h: move some inline functions and defines from cache.h treewide: remove cache.h inclusion due to object-file.h changes object-file.h: move declarations for object-file.c functions from cache.h treewide: remove cache.h inclusion due to git-zlib changes git-zlib: move declarations for git-zlib functions from cache.h treewide: remove cache.h inclusion due to object-name.h changes object-name.h: move declarations for object-name.c functions from cache.h treewide: remove unnecessary cache.h inclusion treewide: be explicit about dependence on mem-pool.h treewide: be explicit about dependence on oid-array.h ...
2023-04-25string-list: multi-delimiter `string_list_split_in_place()`Taylor Blau
Enhance `string_list_split_in_place()` to accept multiple characters as delimiters instead of a single character. Instead of using `strchr(2)` to locate the first occurrence of the given delimiter character, `string_list_split_in_place_multi()` uses `strcspn(2)` to move past the initial segment of characters comprised of any characters in the delimiting set. When only a single delimiting character is provided, `strpbrk(2)` (which is implemented with `strcspn(2)`) has equivalent performance to `strchr(2)`. Modern `strcspn(2)` implementations treat an empty delimiter or the singleton delimiter as a special case and fall back to calling strchrnul(). Both glibc[1] and musl[2] implement `strcspn(2)` this way. This change is one step to removing `strtok(2)` from the tree. Note that `string_list_split_in_place()` is not a strict replacement for `strtok()`, since it will happily turn sequential delimiter characters into empty entries in the resulting string_list. For example: string_list_split_in_place(&xs, "foo:;:bar:;:baz", ":;", -1) would yield a string list of: ["foo", "", "", "bar", "", "", "baz"] Callers that wish to emulate the behavior of strtok(2) more directly should call `string_list_remove_empty_items()` after splitting. To avoid regressions for the new multi-character delimter cases, update t0063 in this patch as well. [1]: https://sourceware.org/git/?p=glibc.git;a=blob;f=string/strcspn.c;hb=glibc-2.37#l35 [2]: https://git.musl-libc.org/cgit/musl/tree/src/string/strcspn.c?h=v1.2.3#n11 Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-24ws.h: move declarations for ws.c functions from cache.hElijah Newren
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-24base85.h: move declarations for base85.c functions from cache.hElijah Newren
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-11pager.h: move declarations for pager.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>
2023-04-11object-file.h: move declarations for object-file.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>
2023-04-11object-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 oid-array.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 convert.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>
2023-04-06Merge branch 'en/header-split-cleanup'Junio C Hamano
Split key function and data structure definitions out of cache.h to new header files and adjust the users. * en/header-split-cleanup: csum-file.h: remove unnecessary inclusion of cache.h write-or-die.h: move declarations for write-or-die.c functions from cache.h treewide: remove cache.h inclusion due to setup.h changes setup.h: move declarations for setup.c functions from cache.h treewide: remove cache.h inclusion due to environment.h changes environment.h: move declarations for environment.c functions from cache.h treewide: remove unnecessary includes of cache.h wrapper.h: move declarations for wrapper.c functions from cache.h path.h: move function declarations for path.c functions from cache.h cache.h: remove expand_user_path() abspath.h: move absolute path functions from cache.h environment: move comment_line_char from cache.h treewide: remove unnecessary cache.h inclusion from several sources treewide: remove unnecessary inclusion of gettext.h treewide: be explicit about dependence on gettext.h treewide: remove unnecessary cache.h inclusion from a few headers
2023-04-06Merge branch 'ab/remove-implicit-use-of-the-repository'Junio C Hamano
Code clean-up around the use of the_repository. * 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"
2023-04-04Merge 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 "promisor-remote.h" part of "the_repository.pending"Ævar Arnfjörð Bjarmason
Apply the part of "the_repository.pending.cocci" pertaining to "promisor-remote.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>
2023-03-22Merge branch 'jk/format-patch-ignore-noprefix'Junio C Hamano
"git format-patch" honors the src/dst prefixes set to nonstandard values with configuration variables like "diff.noprefix", causing receiving end of the patch that expects the standard -p1 format to break. Teach "format-patch" to ignore end-user configuration and always use the standard prefixes. This is a backward compatibility breaking change. * jk/format-patch-ignore-noprefix: rebase: prefer --default-prefix to --{src,dst}-prefix for format-patch format-patch: add format.noprefix option format-patch: do not respect diff.noprefix diff: add --default-prefix option t4013: add tests for diff prefix options diff: factor out src/dst prefix setup
2023-03-21setup.h: move declarations for setup.c functions from cache.hElijah Newren
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-21environment.h: move declarations for environment.c functions from cache.hElijah Newren
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-21wrapper.h: move declarations for wrapper.c functions from cache.hElijah Newren
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-21abspath.h: move absolute path functions from cache.hElijah Newren
This is another step towards letting us remove the include of cache.h in strbuf.c. It does mean that we also need to add includes of abspath.h in a number of C files. 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 'en/header-cleanup'Junio C Hamano
Code clean-up to clarify the rule that "git-compat-util.h" must be the first to be included. * en/header-cleanup: diff.h: remove unnecessary include of object.h Remove unnecessary includes of builtin.h treewide: replace cache.h with more direct headers, where possible replace-object.h: move read_replace_refs declaration from cache.h to here object-store.h: move struct object_info from cache.h dir.h: refactor to no longer need to include cache.h object.h: stop depending on cache.h; make cache.h depend on object.h ident.h: move ident-related declarations out of cache.h pretty.h: move has_non_ascii() declaration from commit.h cache.h: remove dependence on hex.h; make other files include it explicitly hex.h: move some hex-related declarations from cache.h hash.h: move some oid-related declarations from cache.h alloc.h: move ALLOC_GROW() functions from cache.h treewide: remove unnecessary cache.h includes in source files treewide: remove unnecessary cache.h includes treewide: remove unnecessary git-compat-util.h includes in headers treewide: ensure one of the appropriate headers is sourced first
2023-03-09diff: add --default-prefix optionJeff King
You can change the output of prefixes with diff.noprefix and diff.mnemonicprefix, but there's no easy way to override them from the command-line. We do have "--no-prefix", but there's no way to get back to the default prefix. So let's add an option to do that. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-09diff: factor out src/dst prefix setupJeff King
We directly manipulate diffopt's a_prefix and b_prefix to set up either the default "a/foo" prefix or the "--no-prefix" variant. Although this is only a few lines, it's worth pulling these into their own functions. That lets us avoid one repetition already in this patch, but will also give us a cleaner interface for callers which want to tweak this setting. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-27Merge branch 'jc/diff-algo-attribute'Junio C Hamano
The "diff" drivers specified by the "diff" attribute attached to paths can now specify which algorithm (e.g. histogram) to use. * jc/diff-algo-attribute: diff: teach diff to read algorithm from diff driver diff: consolidate diff algorithm option parsing
2023-02-24cache.h: remove dependence on hex.h; make other files include it explicitlyElijah Newren
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-24alloc.h: move ALLOC_GROW() functions from cache.hElijah Newren
This allows us to replace includes of cache.h with includes of the much smaller alloc.h in many places. It does mean that we also need to add includes of alloc.h in a number of C files. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-21diff: teach diff to read algorithm from diff driverJohn Cai
It can be useful to specify diff algorithms per file type. For example, one may want to use the minimal diff algorithm for .json files, another for .c files, etc. The diff machinery already checks attributes for a diff driver. Teach the diff driver parser a new type "algorithm" to look for in the config, which will be used if a driver has been specified through the attributes. Enforce precedence of the diff algorithm by favoring the command line option, then looking at the driver attributes & config combination, then finally the diff.algorithm config. To enforce precedence order, use a new `ignore_driver_algorithm` member during options parsing to indicate the diff algorithm was set via command line args. Signed-off-by: John Cai <johncai86@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-21diff: consolidate diff algorithm option parsingJohn Cai
A subsequent commit will need the ability to tell if the diff algorithm was set through the command line through setting a new member of diff_options. While this logic can be added to the diff_opt_diff_algorithm() callback, the `--minimal` and `--histogram` options are handled via OPT_BIT without a callback. Remedy this by consolidating the options parsing logic for --minimal and --histogram into one callback. This way we can modify `diff_options` in that function. As an additional refactor, the logic that sets the diff algorithm in diff_opt_diff_algorithm() can be refactored into a helper that will allow multiple callsites to set the diff algorithm. Signed-off-by: John Cai <johncai86@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-16Merge branch 'jk/ext-diff-with-relative'Junio C Hamano
"git diff --relative" did not mix well with "git diff --ext-diff", which has been corrected. * jk/ext-diff-with-relative: diff: drop "name" parameter from prepare_temp_file() diff: clean up external-diff argv setup diff: use filespec path to set up tempfiles for ext-diff
2023-01-06diff: drop "name" parameter from prepare_temp_file()Jeff King
The prepare_temp_file() function takes a diff_filespec as well as a filename. But it is almost certainly an error to pass in a name that isn't the filespec's "path" parameter, since that is the only thing that reliably tells us how to find the content (and indeed, this was the source of a recently-fixed bug). So let's drop the redundant "name" parameter and just use one->path throughout the function. This simplifies the interface a little bit, and makes it impossible for calling code to get it wrong. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-06diff: clean up external-diff argv setupJeff King
Since the previous commit, setting up the tempfile for an external diff uses df->path from the diff_filespec, rather than the logical name. This means add_external_diff_name() does not need to take a "name" parameter at all, and we can drop it. And that in turn lets us simplify the conditional for handling renames (when the "other" name is non-NULL). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-06diff: use filespec path to set up tempfiles for ext-diffJeff King
When we're going to run an external diff, we have to make the contents of the pre- and post-images available either by dumping them to a tempfile, or by pointing at a valid file in the worktree. The logic of this is all handled by prepare_temp_file(), and we just pass in the filename and the diff_filespec. But there's a gotcha here. The "filename" we have is a logical filename and not necessarily a path on disk or in the repository. This matters in at least one case: when using "--relative", we may have a name like "foo", even though the file content is found at "subdir/foo". As a result, we look for the wrong path, fail to find "foo", and claim that the file has been deleted (passing "/dev/null" to the external diff, rather than the correct worktree path). We can fix this by passing the pathname from the diff_filespec, which should always be a full repository path (and that's what we want even if reusing a worktree file, since we're always operating from the top-level of the working tree). The breakage seems to go all the way back to cd676a5136 (diff --relative: output paths as relative to the current subdirectory, 2008-02-12). As far as I can tell, before then "name" would always have been the same as the filespec's "path". There are two related cases I looked at that aren't buggy: 1. the only other caller of prepare_temp_file() is run_textconv(). But it always passes the filespec's path field, so it's OK. 2. I wondered if file renames/copies might cause similar confusion. But they don't, because run_external_diff() receives two names in that case: "name" and "other", which correspond to the two sides of the diff. And we did correctly pass "other" when handling the post-image side. Barring the use of "--relative", that would always match "two->path", the path of the second filespec (and the rename destination). So the only bug is just the interaction with external diff drivers and --relative. Reported-by: Carl Baldwin <carl@ecbaldwin.net> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-12-26Merge branch 'pg/diff-stat-unmerged-regression-fix'Junio C Hamano
The output from "git diff --stat" on an unmerged path lost the terminating LF in Git 2.39, which has been corrected. * pg/diff-stat-unmerged-regression-fix: diff: fix regression with --stat and unmerged file
2022-12-26Merge branch 'jk/unused-post-2.39'Junio C Hamano
Code clean-up around unused function parameters. * jk/unused-post-2.39: userdiff: mark unused parameter in internal callback list-objects-filter: mark unused parameters in virtual functions diff: mark unused parameters in callbacks xdiff: mark unused parameter in xdl_call_hunk_func() xdiff: drop unused parameter in def_ff() ws: drop unused parameter from ws_blank_line() list-objects: drop process_gitlink() function blob: drop unused parts of parse_blob_buffer() ls-refs: use repository parameter to iterate refs
2022-12-19Merge branch 'rs/diff-parseopts'Junio C Hamano
The way the diff machinery prepares the options array for the parse_options API has been refactored to avoid resource leaks. * rs/diff-parseopts: diff: remove parseopts member from struct diff_options diff: use add_diff_options() in diff_opt_parse() diff: factor out add_diff_options()
2022-12-15diff: fix regression with --stat and unmerged filePeter Grayson
A regression was introduced in 12fc4ad89e (diff.c: use utf8_strwidth() to count display width, 2022-09-14) that causes missing newlines after "Unmerged" entries in `git diff --cached --stat` output. This problem affects v2.39.0-rc0 through v2.39.0. Add the missing newline along with a new test to cover this behavior. Signed-off-by: Peter Grayson <pete@jpgrayson.net> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-12-13diff: mark unused parameters in callbacksJeff King
The diff code provides a format_callback interface, but not every callback needs each parameter (e.g., the "opt" and "data" parameters are frequently left unused). Likewise for the output_prefix callback, the low-level change/add_remove interfaces, the callbacks used by xdi_diff(), etc. Mark unused arguments in the callback implementations to quiet -Wunused-parameter. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-12-13ws: drop unused parameter from ws_blank_line()Jeff King
We take a ws_rule parameter, but have never looked at it since the function was added in 877f23ccb8 (Teach "diff --check" about new blank lines at end, 2008-06-26). A comment in the function does mention how we _could_ use it, but nobody has felt the need to do so for over a decade. We could keep it around as reminder of what could be done, but the comment serves that purpose. And in the meantime, it triggers -Wunused-parameter. So let's drop it, which in turn allows us to drop similar arguments further up the callstack. I've left the comment intact. It does still say "ws_rule", but that name is used consistently in the whitespace code, so the meaning is clear. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-12-02diff: remove parseopts member from struct diff_optionsRené Scharfe
repo_diff_setup() builds the struct option array with git diff's command line options and stores a pointer to it in the parseopts member of struct diff_options. The array is freed by diff_setup_done(), but not by release_revisions(). Thus calling only repo_diff_setup() and release_revisions() leaks that array. We could free it in release_revisions() as well to plug that leak, but there is a better way: Only build it when needed. Absorb prep_parse_options() into the last place that uses the parseopts member of struct diff_options, add_diff_parseopts(), and get rid of said member. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-12-02diff: use add_diff_options() in diff_opt_parse()René Scharfe
Prepare the removal of the parseopts member of struct diff_options by using the API function add_diff_options() instead of accessing it directly to get the command line option definitions. Building the copy by concatenating with an empty option array is slightly awkward, but simpler than a non-concat version of add_diff_options() would be to use in places that need concatenation. Suggested-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-12-02diff: factor out add_diff_options()René Scharfe
Add a function for appending the parseopts member of struct diff_options to a struct option array. Use it in two sites instead of accessing the parseopts member directly. Decoupling callers from diff internals like that allows us to change the latter. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-11-28Merge branch 'sg/plug-line-log-leaks'Junio C Hamano
A handful of leaks in the line-log machinery have been plugged. * sg/plug-line-log-leaks: diff.c: use diff_free_queue() line-log: free the diff queues' arrays when processing merge commits line-log: free diff queue when processing non-merge commits
2022-11-09Merge branch 'rs/no-more-run-command-v'Taylor Blau
Simplify the run-command API. * rs/no-more-run-command-v: replace and remove run_command_v_opt() replace and remove run_command_v_opt_cd_env_tr2() replace and remove run_command_v_opt_tr2() replace and remove run_command_v_opt_cd_env() use child_process members "args" and "env" directly use child_process member "args" instead of string array variable sequencer: simplify building argument list in do_exec() bisect--helper: factor out do_bisect_run() bisect: simplify building "checkout" argument list am: simplify building "show" argument list run-command: fix return value comment merge: remove always-the-same "verbose" arguments