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2017-11-21Merge branch 'bp/fsmonitor'Libravatar Junio C Hamano1-0/+2
We learned to talk to watchman to speed up "git status" and other operations that need to see which paths have been modified. * bp/fsmonitor: fsmonitor: preserve utf8 filenames in fsmonitor-watchman log fsmonitor: read entirety of watchman output fsmonitor: MINGW support for watchman integration fsmonitor: add a performance test fsmonitor: add a sample integration script for Watchman fsmonitor: add test cases for fsmonitor extension split-index: disable the fsmonitor extension when running the split index test fsmonitor: add a test tool to dump the index extension update-index: add fsmonitor support to update-index ls-files: Add support in ls-files to display the fsmonitor valid bit fsmonitor: add documentation for the fsmonitor extension. fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files. update-index: add a new --force-write-index option preload-index: add override to enable testing preload-index bswap: add 64 bit endianness helper get_be64
2017-11-09Merge branch 'bw/diff-opt-impl-to-bitfields'Libravatar Junio C Hamano1-14/+16
A single-word "unsigned flags" in the diff options is being split into a structure with many bitfields. * bw/diff-opt-impl-to-bitfields: diff: make struct diff_flags members lowercase diff: remove DIFF_OPT_CLR macro diff: remove DIFF_OPT_SET macro diff: remove DIFF_OPT_TST macro diff: remove touched flags diff: add flag to indicate textconv was set via cmdline diff: convert flags to be stored in bitfields add, reset: use DIFF_OPT_SET macro to set a diff flag
2017-11-01diff: make struct diff_flags members lowercaseLibravatar Brandon Williams1-11/+11
Now that the flags stored in struct diff_flags are being accessed directly and not through macros, change all struct members from being uppercase to lowercase. This conversion is done using the following semantic patch: @@ expression E; @@ - E.RECURSIVE + E.recursive @@ expression E; @@ - E.TREE_IN_RECURSIVE + E.tree_in_recursive @@ expression E; @@ - E.BINARY + E.binary @@ expression E; @@ - E.TEXT + E.text @@ expression E; @@ - E.FULL_INDEX + E.full_index @@ expression E; @@ - E.SILENT_ON_REMOVE + E.silent_on_remove @@ expression E; @@ - E.FIND_COPIES_HARDER + E.find_copies_harder @@ expression E; @@ - E.FOLLOW_RENAMES + E.follow_renames @@ expression E; @@ - E.RENAME_EMPTY + E.rename_empty @@ expression E; @@ - E.HAS_CHANGES + E.has_changes @@ expression E; @@ - E.QUICK + E.quick @@ expression E; @@ - E.NO_INDEX + E.no_index @@ expression E; @@ - E.ALLOW_EXTERNAL + E.allow_external @@ expression E; @@ - E.EXIT_WITH_STATUS + E.exit_with_status @@ expression E; @@ - E.REVERSE_DIFF + E.reverse_diff @@ expression E; @@ - E.CHECK_FAILED + E.check_failed @@ expression E; @@ - E.RELATIVE_NAME + E.relative_name @@ expression E; @@ - E.IGNORE_SUBMODULES + E.ignore_submodules @@ expression E; @@ - E.DIRSTAT_CUMULATIVE + E.dirstat_cumulative @@ expression E; @@ - E.DIRSTAT_BY_FILE + E.dirstat_by_file @@ expression E; @@ - E.ALLOW_TEXTCONV + E.allow_textconv @@ expression E; @@ - E.TEXTCONV_SET_VIA_CMDLINE + E.textconv_set_via_cmdline @@ expression E; @@ - E.DIFF_FROM_CONTENTS + E.diff_from_contents @@ expression E; @@ - E.DIRTY_SUBMODULES + E.dirty_submodules @@ expression E; @@ - E.IGNORE_UNTRACKED_IN_SUBMODULES + E.ignore_untracked_in_submodules @@ expression E; @@ - E.IGNORE_DIRTY_SUBMODULES + E.ignore_dirty_submodules @@ expression E; @@ - E.OVERRIDE_SUBMODULE_CONFIG + E.override_submodule_config @@ expression E; @@ - E.DIRSTAT_BY_LINE + E.dirstat_by_line @@ expression E; @@ - E.FUNCCONTEXT + E.funccontext @@ expression E; @@ - E.PICKAXE_IGNORE_CASE + E.pickaxe_ignore_case @@ expression E; @@ - E.DEFAULT_FOLLOW_RENAMES + E.default_follow_renames Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01diff: remove DIFF_OPT_SET macroLibravatar Brandon Williams1-2/+2
Remove the `DIFF_OPT_SET` macro and instead set the flags directly. This conversion is done using the following semantic patch: @@ expression E; identifier fld; @@ - DIFF_OPT_SET(&E, fld) + E.flags.fld = 1 @@ type T; T *ptr; identifier fld; @@ - DIFF_OPT_SET(ptr, fld) + ptr->flags.fld = 1 Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01diff: remove DIFF_OPT_TST macroLibravatar Brandon Williams1-9/+10
Remove the `DIFF_OPT_TST` macro and instead access the flags directly. This conversion is done using the following semantic patch: @@ expression E; identifier fld; @@ - DIFF_OPT_TST(&E, fld) + E.flags.fld @@ type T; T *ptr; identifier fld; @@ - DIFF_OPT_TST(ptr, fld) + ptr->flags.fld Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01diff: convert flags to be stored in bitfieldsLibravatar Brandon Williams1-3/+4
We cannot add many more flags to the diff machinery due to the limitations of the number of flags that can be stored in a single unsigned int. In order to allow for more flags to be added to the diff machinery in the future this patch converts the flags to be stored in bitfields in 'struct diff_flags'. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert resolve_gitlink_ref to struct object_idLibravatar brian m. carlson1-1/+1
Convert the declaration and definition of resolve_gitlink_ref to use struct object_id and apply the following semantic patch: @@ expression E1, E2, E3; @@ - resolve_gitlink_ref(E1, E2, E3.hash) + resolve_gitlink_ref(E1, E2, &E3) @@ expression E1, E2, E3; @@ - resolve_gitlink_ref(E1, E2, E3->hash) + resolve_gitlink_ref(E1, E2, E3) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16Convert remaining callers of resolve_gitlink_ref to object_idLibravatar brian m. carlson1-2/+2
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-01fsmonitor: teach git to optionally utilize a file system monitor to speed up ↵Libravatar Ben Peart1-0/+2
detecting new or changed files. When the index is read from disk, the fsmonitor index extension is used to flag the last known potentially dirty index entries. The registered core.fsmonitor command is called with the time the index was last updated and returns the list of files changed since that time. This list is used to flag any additional dirty cache entries and untracked cache directories. We can then use this valid state to speed up preload_index(), ie_match_stat(), and refresh_cache_ent() as they do not need to lstat() files to detect potential changes for those entries marked CE_FSMONITOR_VALID. In addition, if the untracked cache is turned on valid_cached_dir() can skip checking directories for new or changed files as fsmonitor will invalidate the cache only for those directories that have been identified as having potential changes. To keep the CE_FSMONITOR_VALID state accurate during git operations; when git updates a cache entry to match the current state on disk, it will now set the CE_FSMONITOR_VALID bit. Inversely, anytime git changes a cache entry, the CE_FSMONITOR_VALID bit is cleared and the corresponding untracked cache directory is marked invalid. Signed-off-by: Ben Peart <benpeart@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24object_array: use `object_array_clear()`, not `free()`Libravatar Martin Ågren1-2/+1
Instead of freeing `foo.objects` for an object array `foo` (sometimes conditionally), call `object_array_clear(&foo)`. This means we don't poke as much into the implementation, which is already a good thing, but also that we release the individual entries as well, thereby fixing at least one memory-leak (in diff-lib.c). If someone is holding on to a pointer to an element's `name` or `path`, that is now a dangling pointer, i.e., we'd be turning an unpleasant situation into an outright bug. To the best of my understanding no such long-term pointers are being taken. The way we handle `study` in builting/reflog.c still looks like it might leak. That will be addressed in the next commit. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-24Merge branch 'ab/free-and-null'Libravatar Junio C Hamano1-2/+1
A common pattern to free a piece of memory and assign NULL to the pointer that used to point at it has been replaced with a new FREE_AND_NULL() macro. * ab/free-and-null: *.[ch] refactoring: make use of the FREE_AND_NULL() macro coccinelle: make use of the "expression" FREE_AND_NULL() rule coccinelle: add a rule to make "expression" code use FREE_AND_NULL() coccinelle: make use of the "type" FREE_AND_NULL() rule coccinelle: add a rule to make "type" code use FREE_AND_NULL() git-compat-util: add a FREE_AND_NULL() wrapper around free(ptr); ptr = NULL
2017-06-19Merge branch 'bw/object-id'Libravatar Junio C Hamano1-26/+26
Conversion from uchar[20] to struct object_id continues. * bw/object-id: (33 commits) diff: rename diff_fill_sha1_info to diff_fill_oid_info diffcore-rename: use is_empty_blob_oid tree-diff: convert path_appendnew to object_id tree-diff: convert diff_tree_paths to struct object_id tree-diff: convert try_to_follow_renames to struct object_id builtin/diff-tree: cleanup references to sha1 diff-tree: convert diff_tree_sha1 to struct object_id notes-merge: convert write_note_to_worktree to struct object_id notes-merge: convert verify_notes_filepair to struct object_id notes-merge: convert find_notes_merge_pair_ps to struct object_id notes-merge: convert merge_from_diffs to struct object_id notes-merge: convert notes_merge* to struct object_id tree-diff: convert diff_root_tree_sha1 to struct object_id combine-diff: convert find_paths_* to struct object_id combine-diff: convert diff_tree_combined to struct object_id diff: convert diff_flush_patch_id to struct object_id patch-ids: convert to struct object_id diff: finish conversion for prepare_temp_file to struct object_id diff: convert reuse_worktree_file to struct object_id diff: convert fill_filespec to struct object_id ...
2017-06-16coccinelle: make use of the "type" FREE_AND_NULL() ruleLibravatar Ævar Arnfjörð Bjarmason1-2/+1
Apply the result of the just-added coccinelle rule. This manually excludes a few occurrences, mostly things that resulted in many FREE_AND_NULL() on one line, that'll be manually fixed in a subsequent change. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13Merge branch 'jc/noent-notdir'Libravatar Junio C Hamano1-1/+1
Our code often opens a path to an optional file, to work on its contents when we can successfully open it. We can ignore a failure to open if such an optional file does not exist, but we do want to report a failure in opening for other reasons (e.g. we got an I/O error, or the file is there, but we lack the permission to open). The exact errors we need to ignore are ENOENT (obviously) and ENOTDIR (less obvious). Instead of repeating comparison of errno with these two constants, introduce a helper function to do so. * jc/noent-notdir: treewide: use is_missing_file_error() where ENOENT and ENOTDIR are checked compat-util: is_missing_file_error()
2017-06-02diff: convert fill_filespec to struct object_idLibravatar Brandon Williams1-1/+1
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-02diff: convert diff_change to struct object_idLibravatar Brandon Williams1-2/+2
Convert diff_change to take a struct object_id. In addition convert the function pointer type 'change_fn_t' to also take a struct object_id. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-02diff: convert run_diff_files to struct object_idLibravatar Brandon Williams1-6/+6
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-02diff: convert diff_addremove to struct object_idLibravatar Brandon Williams1-3/+3
Convert diff_addremove to take a struct object_id. In addtion convert the function pointer type 'add_remove_fn_t' to also take a struct object_id. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-02diff: convert diff_index_show_file to struct object_idLibravatar Brandon Williams1-5/+5
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-02diff: convert get_stat_data to struct object_idLibravatar Brandon Williams1-13/+13
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-30treewide: use is_missing_file_error() where ENOENT and ENOTDIR are checkedLibravatar Junio C Hamano1-1/+1
Using the is_missing_file_error() helper introduced in the previous step, update all hits from $ git grep -e ENOENT --and -e ENOTDIR There are codepaths that only check ENOENT, and it is possible that some of them should be checking both. Updating them is kept out of this step deliberately, as we do not want to change behaviour in this step. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08tree: convert parse_tree_indirect to struct object_idLibravatar brian m. carlson1-1/+1
Convert parse_tree_indirect to take a pointer to struct object_id. Update all the callers. This transformation was achieved using the following semantic patch and manual updates to the declaration and definition. Update builtin/checkout.c manually as well, since it uses a ternary expression not handled by the semantic patch. @@ expression E1; @@ - parse_tree_indirect(E1.hash) + parse_tree_indirect(&E1) @@ expression E1; @@ - parse_tree_indirect(E1->hash) + parse_tree_indirect(E1) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08diff-lib: convert do_diff_cache to struct object_idLibravatar brian m. carlson1-6/+6
This is needed to convert parse_tree_indirect. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-24commit: fix empty commit creation when there's no changes but ita entriesLibravatar Nguyễn Thái Ngọc Duy1-1/+3
If i-t-a entries are present and there is no change between the index and HEAD i-t-a entries, index_differs_from() still returns "dirty, new entries" (aka, the resulting commit is not empty), but cache-tree will skip i-t-a entries and produce the exact same tree of current commit. index_differs_from() is supposed to catch this so we can abort git-commit (unless --no-empty is specified). Update it to optionally ignore i-t-a entries when doing a diff between the index and HEAD so that it would return "no change" in this case and abort commit. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-24diff-lib: allow ita entries treated as "not yet exist in index"Libravatar Nguyễn Thái Ngọc Duy1-0/+14
When comparing the index and the working tree to show which paths are new, and comparing the tree recorded in the HEAD and the index to see if committing the contents recorded in the index would result in an empty commit, we would want the former comparison to say "these are new paths" and the latter to say "there is no change" for paths that are marked as intent-to-add. We made a similar attempt at d95d728a ("diff-lib.c: adjust position of i-t-a entries in diff", 2015-03-16), which redefined the semantics of these two comparison modes globally, which was a disaster and had to be reverted at 78cc1a54 ("Revert "diff-lib.c: adjust position of i-t-a entries in diff"", 2015-06-23). To make sure we do not repeat the same mistake, introduce a new internal diffopt option so that this different semantics can be asked for only by callers that ask it, while making sure other unaudited callers will get the same comparison result. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07cache: convert struct cache_entry to use struct object_idLibravatar brian m. carlson1-13/+18
Convert struct cache_entry to use struct object_id by applying the following semantic patch and the object_id transforms from contrib, plus the actual change to the struct: @@ struct cache_entry E1; @@ - E1.sha1 + E1.oid.hash @@ struct cache_entry *E1; @@ - E1->sha1 + E1->oid.hash Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-11-20Remove get_object_hash.Libravatar brian m. carlson1-1/+1
Convert all instances of get_object_hash to use an appropriate reference to the hash member of the oid member of struct object. This provides no functional change, as it is essentially a macro substitution. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jeff King <peff@peff.net>
2015-11-20Add several uses of get_object_hash.Libravatar brian m. carlson1-1/+1
Convert most instances where the sha1 member of struct object is dereferenced to use get_object_hash. Most instances that are passed to functions that have versions taking struct object_id, such as get_sha1_hex/get_oid_hex, or instances that can be trivially converted to use struct object_id instead, are not converted. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jeff King <peff@peff.net>
2015-06-25Merge branch 'nd/diff-i-t-a'Libravatar Junio C Hamano1-12/+0
* nd/diff-i-t-a: Revert "diff-lib.c: adjust position of i-t-a entries in diff"
2015-06-23Revert "diff-lib.c: adjust position of i-t-a entries in diff"Libravatar Junio C Hamano1-12/+0
This reverts commit d95d728aba06a34394d15466045cbdabdada58a2. It turns out that many other commands that need to interact with the result of running diff-files and diff-index, e.g. "git apply", "git rm", etc., need to be adjusted to the new world order it brings in. For example, it would break this sequence to correct a whitespace breakage in the parts you changed: git add -N file git diff --cached file | git apply --cached --whitespace=fix git checkout file In the old world order, "diff" showed a patch to modify an existing empty file by adding its full contents, and "apply" updated the index by modifying the existing empty blob (which is what an Intent-to-Add entry records in the index) with that patch. In the new world order, "diff" shows a patch to create a new file with its full contents, but because "apply" thinks that the i-t-a entry already exists in the index, it refused to accept a creation. Adjusting "apply" to this new world order is easy, but we need to assess the extent of the damage to the rest of the system the new world order brought in before going forward and adjust them all, after which we can resurrect the commit being reverted here. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-19Merge branch 'nd/diff-i-t-a'Libravatar Junio C Hamano1-0/+12
After "git add -N", the path appeared in output of "git diff HEAD" and "git diff --cached HEAD", leading "git status" to classify it as "Changes to be committed". Such a path, however, is not yet to be scheduled to be committed. "git diff" showed the change to the path as modification, not as a "new file", in the header of its output. Treat such paths as "yet to be added to the index but Git already know about them"; "git diff HEAD" and "git diff --cached HEAD" should not talk about them, and "git diff" should show them as new files yet to be added to the index. * nd/diff-i-t-a: diff-lib.c: adjust position of i-t-a entries in diff
2015-05-05Merge branch 'bc/object-id'Libravatar Junio C Hamano1-5/+5
Identify parts of the code that knows that we use SHA-1 hash to name our objects too much, and use (1) symbolic constants instead of hardcoded 20 as byte count and/or (2) use struct object_id instead of unsigned char [20] for object names. * bc/object-id: apply: convert threeway_stage to object_id patch-id: convert to use struct object_id commit: convert parts to struct object_id diff: convert struct combine_diff_path to object_id bulk-checkin.c: convert to use struct object_id zip: use GIT_SHA1_HEXSZ for trailers archive.c: convert to use struct object_id bisect.c: convert leaf functions to use struct object_id define utility functions for object IDs define a structure for object IDs
2015-03-23diff-lib.c: adjust position of i-t-a entries in diffLibravatar Nguyễn Thái Ngọc Duy1-0/+12
Entries added by "git add -N" are reminder for the user so that they don't forget to add them before committing. These entries appear in the index even though they are not real. Their presence in the index leads to a confusing "git status" like this: On branch master Changes to be committed: new file: foo Changes not staged for commit: modified: foo If you do a "git commit", "foo" will not be included even though "status" reports it as "to be committed". This patch changes the output to become On branch master Changes not staged for commit: new file: foo no changes added to commit The two hunks in diff-lib.c adjust "diff-index" and "diff-files" so that i-t-a entries appear as new files in diff-files and nothing in diff-index. Due to this change, diff-files may start to report "new files" for the first time. "add -u" needs to be told about this or it will die in denial, screaming "new files can't exist! Reality is wrong." Luckily, it's the only one among run_diff_files() callers that needs fixing. Now in the new world order, a hierarchy in the index that contain i-t-a paths is written out as a tree object as if these i-t-a entries do not exist, and comparing the index with such a tree object that would result from writing out the hierarchy will result in no difference. Update a test in t2203 that expected the i-t-a entries to appear as "added to the index" in the comparison to instead expect no output. An earlier change eec3e7e4 (cache-tree: invalidate i-t-a paths after generating trees, 2012-12-16) becomes an unnecessary pessimization in the new world order---a cache-tree in the index that corresponds to a hierarchy with i-t-a paths can now be marked as valid and record the object name of the tree that results from writing a tree object out of that hierarchy, as it will compare equal to that tree. Reverting the commit is left for the future, though, as it is purely a performance issue and no longer affects correctness. Helped-by: Michael J Gruber <git@drmicha.warpmail.net> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-13diff: convert struct combine_diff_path to object_idLibravatar brian m. carlson1-5/+5
Also, convert a constant to GIT_SHA1_HEXSZ. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-04run_diff_files(): clarify computation of sha1 validityLibravatar Junio C Hamano1-2/+6
Remove the need to have duplicated "if there is a change then feed null_sha1 and otherwise sha1 from the cache entry" for the "new" side of the diff by introducing two temporary variables to point at the object name of the old and the new side of the blobs. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-16Merge branch 'jk/diff-files-assume-unchanged'Libravatar Junio C Hamano1-12/+21
* jk/diff-files-assume-unchanged: run_diff_files: do not look at uninitialized stat data
2014-05-15run_diff_files: do not look at uninitialized stat dataLibravatar Jeff King1-12/+21
If we try to diff an index entry marked CE_VALID (because it was marked with --assume-unchanged), we do not bother even running stat() on the file to see if it was removed. This started long ago with 540e694 (Prevent diff machinery from examining assume-unchanged entries on worktree, 2009-08-11). However, the subsequent code may look at our "struct stat" and expect to find actual data; currently it will find whatever cruft was left on the stack. This can cause problems in two situations: 1. We call match_stat_with_submodule with the stat data, so a submodule may be erroneously marked as changed. 2. If --find-copies-harder is in effect, we pass all entries, even unchanged ones, to diff_change, so it can list them as rename/copy sources. Since we found no change, we assume that function will realize it and not actually display any diff output. However, we end up feeding it a bogus mode, leading it to sometimes claim there was a mode change. We can fix both by splitting the CE_VALID and regular code paths, and making sure only to look at the stat information in the latter. Furthermore, we push the declaration of our "struct stat" down into the code paths that actually set it, so we cannot accidentally access it uninitialized in future code. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-07Merge branch 'jc/hold-diff-remove-q-synonym-for-no-deletion'Libravatar Junio C Hamano1-3/+0
Remove a confusing and deprecated "-q" option from "git diff-files"; "git diff-files --diff-filter=d" can be used instead.
2014-03-05Merge branch 'ks/combine-diff'Libravatar Junio C Hamano1-2/+0
Teach combine-diff to honour the path-output-order imposed by diffcore-order, and optimize how matching paths are found in the N-way diffs made with parents. * ks/combine-diff: tests: add checking that combine-diff emits only correct paths combine-diff: simplify intersect_paths() further combine-diff: combine_diff_path.len is not needed anymore combine-diff: optimize combine_diff_path sets intersection diff test: add tests for combine-diff with orderfile diffcore-order: export generic ordering interface
2014-02-24combine-diff: combine_diff_path.len is not needed anymoreLibravatar Kirill Smelkov1-2/+0
The field was used in order to speed-up name comparison and also to mark removed paths by setting it to 0. Because the updated code does significantly less strcmp and also just removes paths from the list and free right after we know a path will not be needed, it is not needed anymore. Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-24pathspec: convert some match_pathspec_depth() to ce_path_match()Libravatar Nguyễn Thái Ngọc Duy1-2/+3
This helps reduce the number of match_pathspec_depth() call sites and show how match_pathspec_depth() is used. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-09Merge branch 'jl/submodule-mv'Libravatar Junio C Hamano1-2/+1
"git mv A B" when moving a submodule A does "the right thing", inclusing relocating its working tree and adjusting the paths in the .gitmodules file. * jl/submodule-mv: (53 commits) rm: delete .gitmodules entry of submodules removed from the work tree mv: update the path entry in .gitmodules for moved submodules submodule.c: add .gitmodules staging helper functions mv: move submodules using a gitfile mv: move submodules together with their work trees rm: do not set a variable twice without intermediate reading. t6131 - skip tests if on case-insensitive file system parse_pathspec: accept :(icase)path syntax pathspec: support :(glob) syntax pathspec: make --literal-pathspecs disable pathspec magic pathspec: support :(literal) syntax for noglob pathspec kill limit_pathspec_to_literal() as it's only used by parse_pathspec() parse_pathspec: preserve prefix length via PATHSPEC_PREFIX_ORIGIN parse_pathspec: make sure the prefix part is wildcard-free rename field "raw" to "_raw" in struct pathspec tree-diff: remove the use of pathspec's raw[] in follow-rename codepath remove match_pathspec() in favor of match_pathspec_depth() remove init_pathspec() in favor of parse_pathspec() remove diff_tree_{setup,release}_paths convert common_prefix() to use struct pathspec ...
2013-09-09Merge branch 'jc/diff-filter-negation'Libravatar Junio C Hamano1-5/+3
Teach "git diff --diff-filter" to express "I do not want to see these classes of changes" more directly by listing only the unwanted ones in lowercase (e.g. "--diff-filter=d" will show everything but deletion) and deprecate "diff-files -q" which did the same thing as "--diff-filter=d". * jc/diff-filter-negation: diff: deprecate -q option to diff-files diff: allow lowercase letter to specify what change class to exclude diff: reject unknown change class given to --diff-filter diff: preparse --diff-filter string argument diff: factor out match_filter() diff: pass the whole diff_options to diffcore_apply_filter()
2013-07-19diff: remove "diff-files -q" in a version of Git in a distant futureLibravatar Junio C Hamano1-3/+0
This was inherited from "show-diff -q" that was invented to tell comparison between the index and the working tree to ignore only removals in 2005. These days, it is spelled as "--diff-filter=d". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-19diff: deprecate -q option to diff-filesLibravatar Junio C Hamano1-5/+3
This reimplements the ancient "-q" option to "git diff-files" that was inherited from "show-diff -q" in terms of "--diff-filter=d". We will be deprecating the "-q" option, so let's issue a warning when we do so. Incidentally this also tentatively fixes "git diff --no-index" to honor "-q" and hide deletions; the use will get the same warning. We should remove the support for "-q" in a future version but it is not that urgent. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-15remove init_pathspec() in favor of parse_pathspec()Libravatar Nguyễn Thái Ngọc Duy1-1/+1
While at there, move free_pathspec() to pathspec.c Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-15parse_pathspec: add special flag for max_depth featureLibravatar Nguyễn Thái Ngọc Duy1-1/+0
match_pathspec_depth() and tree_entry_interesting() check max_depth field in order to support "git grep --max-depth". The feature activation is tied to "recursive" field, which led to some unwanted activation, e.g. 5c8eeb8 (diff-index: enable recursive pathspec matching in unpack_trees - 2012-01-15). This patch decouples the activation from "recursive" field, puts it in "magic" field instead. This makes sure that only "git grep" can activate this feature. And because parse_pathspec knows when the feature is not used, it does not need to sort pathspec (required for max_depth to work correctly). A small win for non-grep cases. Even though a new magic flag is introduced, no magic syntax is. The magic can be only enabled by parse_pathspec() caller. We might someday want to support ":(maxdepth:10)src." It all depends on actual use cases. max_depth feature cannot be enabled via init_pathspec() anymore. But that's ok because init_pathspec() is on its way to /dev/null. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02diff-lib, read-tree, unpack-trees: mark cache_entry array paramters constLibravatar René Scharfe1-1/+2
Change the type merge_fn_t to accept the array of cache_entry pointers as const pointers to const pointers. This documents the fact that the merge functions don't modify the cache_entry contents or replace any of the pointers in the array. Only a single cast is necessary in unpack_nondirectories because adding two const modifiers at once is not allowed in C. The cast is safe in that it doesn't mask any modfication; call_unpack_fn only needs the array for reading. Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02diff-lib, read-tree, unpack-trees: mark cache_entry pointers constLibravatar René Scharfe1-11/+12
Add const to struct cache_entry pointers throughout the tree which are only used for reading. This allows callers to pass in const pointers. Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-29diff: do not use null sha1 as a sentinel valueLibravatar Jeff King1-8/+12
The diff code represents paths using the diff_filespec struct. This struct has a sha1 to represent the sha1 of the content at that path, as well as a sha1_valid member which indicates whether its sha1 field is actually useful. If sha1_valid is not true, then the filespec represents a working tree file (e.g., for the no-index case, or for when the index is not up-to-date). The diff_filespec is only used internally, though. At the interfaces to the diff subsystem, callers feed the sha1 directly, and we create a diff_filespec from it. It's at that point that we look at the sha1 and decide whether it is valid or not; callers may pass the null sha1 as a sentinel value to indicate that it is not. We should not typically see the null sha1 coming from any other source (e.g., in the index itself, or from a tree). However, a corrupt tree might have a null sha1, which would cause "diff --patch" to accidentally diff the working tree version of a file instead of treating it as a blob. This patch extends the edges of the diff interface to accept a "sha1_valid" flag whenever we accept a sha1, and to use that flag when creating a filespec. In some cases, this means passing the flag through several layers, making the code change larger than would be desirable. One alternative would be to simply die() upon seeing corrupted trees with null sha1s. However, this fix more directly addresses the problem (while bogus sha1s in a tree are probably a bad thing, it is really the sentinel confusion sending us down the wrong code path that is what makes it devastating). And it means that git is more capable of examining and debugging these corrupted trees. For example, you can still "diff --raw" such a tree to find out when the bogus entry was introduced; you just cannot do a "--patch" diff (just as you could not with any other corrupted tree, as we do not have any content to diff). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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