2 * This handles recursive filename detection with exclude
3 * files, index knowledge etc..
5 * Copyright (C) Linus Torvalds, 2005-2006
6 * Junio Hamano, 2005-2006
11 #include "object-store.h"
14 #include "wildmatch.h"
18 #include "ewah/ewok.h"
19 #include "fsmonitor.h"
20 #include "submodule-config.h"
23 * Tells read_directory_recursive how a file or directory should be treated.
24 * Values are ordered by significance, e.g. if a directory contains both
25 * excluded and untracked files, it is listed as untracked because
26 * path_untracked > path_excluded.
36 * Support data structure for our opendir/readdir/closedir wrappers
40 struct untracked_cache_dir
*untracked
;
47 struct untracked_cache_dir
*ucd
;
50 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
51 struct index_state
*istate
, const char *path
, int len
,
52 struct untracked_cache_dir
*untracked
,
53 int check_only
, int stop_at_first_file
, const struct pathspec
*pathspec
);
54 static int resolve_dtype(int dtype
, struct index_state
*istate
,
55 const char *path
, int len
);
57 void dir_init(struct dir_struct
*dir
)
59 memset(dir
, 0, sizeof(*dir
));
63 readdir_skip_dot_and_dotdot(DIR *dirp
)
67 while ((e
= readdir(dirp
)) != NULL
) {
68 if (!is_dot_or_dotdot(e
->d_name
))
74 int count_slashes(const char *s
)
83 int fspathcmp(const char *a
, const char *b
)
85 return ignore_case
? strcasecmp(a
, b
) : strcmp(a
, b
);
88 int fspathncmp(const char *a
, const char *b
, size_t count
)
90 return ignore_case
? strncasecmp(a
, b
, count
) : strncmp(a
, b
, count
);
93 int git_fnmatch(const struct pathspec_item
*item
,
94 const char *pattern
, const char *string
,
98 if (ps_strncmp(item
, pattern
, string
, prefix
))
103 if (item
->flags
& PATHSPEC_ONESTAR
) {
104 int pattern_len
= strlen(++pattern
);
105 int string_len
= strlen(string
);
106 return string_len
< pattern_len
||
107 ps_strcmp(item
, pattern
,
108 string
+ string_len
- pattern_len
);
110 if (item
->magic
& PATHSPEC_GLOB
)
111 return wildmatch(pattern
, string
,
113 (item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0));
115 /* wildmatch has not learned no FNM_PATHNAME mode yet */
116 return wildmatch(pattern
, string
,
117 item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0);
120 static int fnmatch_icase_mem(const char *pattern
, int patternlen
,
121 const char *string
, int stringlen
,
125 struct strbuf pat_buf
= STRBUF_INIT
;
126 struct strbuf str_buf
= STRBUF_INIT
;
127 const char *use_pat
= pattern
;
128 const char *use_str
= string
;
130 if (pattern
[patternlen
]) {
131 strbuf_add(&pat_buf
, pattern
, patternlen
);
132 use_pat
= pat_buf
.buf
;
134 if (string
[stringlen
]) {
135 strbuf_add(&str_buf
, string
, stringlen
);
136 use_str
= str_buf
.buf
;
140 flags
|= WM_CASEFOLD
;
141 match_status
= wildmatch(use_pat
, use_str
, flags
);
143 strbuf_release(&pat_buf
);
144 strbuf_release(&str_buf
);
149 static size_t common_prefix_len(const struct pathspec
*pathspec
)
155 * ":(icase)path" is treated as a pathspec full of
156 * wildcard. In other words, only prefix is considered common
157 * prefix. If the pathspec is abc/foo abc/bar, running in
158 * subdir xyz, the common prefix is still xyz, not xyz/abc as
161 GUARD_PATHSPEC(pathspec
,
170 for (n
= 0; n
< pathspec
->nr
; n
++) {
171 size_t i
= 0, len
= 0, item_len
;
172 if (pathspec
->items
[n
].magic
& PATHSPEC_EXCLUDE
)
174 if (pathspec
->items
[n
].magic
& PATHSPEC_ICASE
)
175 item_len
= pathspec
->items
[n
].prefix
;
177 item_len
= pathspec
->items
[n
].nowildcard_len
;
178 while (i
< item_len
&& (n
== 0 || i
< max
)) {
179 char c
= pathspec
->items
[n
].match
[i
];
180 if (c
!= pathspec
->items
[0].match
[i
])
186 if (n
== 0 || len
< max
) {
196 * Returns a copy of the longest leading path common among all
199 char *common_prefix(const struct pathspec
*pathspec
)
201 unsigned long len
= common_prefix_len(pathspec
);
203 return len
? xmemdupz(pathspec
->items
[0].match
, len
) : NULL
;
206 int fill_directory(struct dir_struct
*dir
,
207 struct index_state
*istate
,
208 const struct pathspec
*pathspec
)
213 unsigned exclusive_flags
= DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
;
214 if ((dir
->flags
& exclusive_flags
) == exclusive_flags
)
215 BUG("DIR_SHOW_IGNORED and DIR_SHOW_IGNORED_TOO are exclusive");
218 * Calculate common prefix for the pathspec, and
219 * use that to optimize the directory walk
221 prefix_len
= common_prefix_len(pathspec
);
222 prefix
= prefix_len
? pathspec
->items
[0].match
: "";
224 /* Read the directory and prune it */
225 read_directory(dir
, istate
, prefix
, prefix_len
, pathspec
);
230 int within_depth(const char *name
, int namelen
,
231 int depth
, int max_depth
)
233 const char *cp
= name
, *cpe
= name
+ namelen
;
239 if (depth
> max_depth
)
246 * Read the contents of the blob with the given OID into a buffer.
247 * Append a trailing LF to the end if the last line doesn't have one.
250 * -1 when the OID is invalid or unknown or does not refer to a blob.
251 * 0 when the blob is empty.
252 * 1 along with { data, size } of the (possibly augmented) buffer
255 * Optionally updates the given oid_stat with the given OID (when valid).
257 static int do_read_blob(const struct object_id
*oid
, struct oid_stat
*oid_stat
,
258 size_t *size_out
, char **data_out
)
260 enum object_type type
;
267 data
= read_object_file(oid
, &type
, &sz
);
268 if (!data
|| type
!= OBJ_BLOB
) {
274 memset(&oid_stat
->stat
, 0, sizeof(oid_stat
->stat
));
275 oidcpy(&oid_stat
->oid
, oid
);
283 if (data
[sz
- 1] != '\n') {
284 data
= xrealloc(data
, st_add(sz
, 1));
288 *size_out
= xsize_t(sz
);
294 #define DO_MATCH_EXCLUDE (1<<0)
295 #define DO_MATCH_DIRECTORY (1<<1)
296 #define DO_MATCH_LEADING_PATHSPEC (1<<2)
299 * Does the given pathspec match the given name? A match is found if
301 * (1) the pathspec string is leading directory of 'name' ("RECURSIVELY"), or
302 * (2) the pathspec string has a leading part matching 'name' ("LEADING"), or
303 * (3) the pathspec string is a wildcard and matches 'name' ("WILDCARD"), or
304 * (4) the pathspec string is exactly the same as 'name' ("EXACT").
306 * Return value tells which case it was (1-4), or 0 when there is no match.
308 * It may be instructive to look at a small table of concrete examples
309 * to understand the differences between 1, 2, and 4:
312 * | a/b | a/b/ | a/b/c
313 * ------+-----------+-----------+------------
314 * a/b | EXACT | EXACT[1] | LEADING[2]
315 * Names a/b/ | RECURSIVE | EXACT | LEADING[2]
316 * a/b/c | RECURSIVE | RECURSIVE | EXACT
318 * [1] Only if DO_MATCH_DIRECTORY is passed; otherwise, this is NOT a match.
319 * [2] Only if DO_MATCH_LEADING_PATHSPEC is passed; otherwise, not a match.
321 static int match_pathspec_item(const struct index_state
*istate
,
322 const struct pathspec_item
*item
, int prefix
,
323 const char *name
, int namelen
, unsigned flags
)
325 /* name/namelen has prefix cut off by caller */
326 const char *match
= item
->match
+ prefix
;
327 int matchlen
= item
->len
- prefix
;
330 * The normal call pattern is:
331 * 1. prefix = common_prefix_len(ps);
332 * 2. prune something, or fill_directory
333 * 3. match_pathspec()
335 * 'prefix' at #1 may be shorter than the command's prefix and
336 * it's ok for #2 to match extra files. Those extras will be
339 * Suppose the pathspec is 'foo' and '../bar' running from
340 * subdir 'xyz'. The common prefix at #1 will be empty, thanks
341 * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The
342 * user does not want XYZ/foo, only the "foo" part should be
343 * case-insensitive. We need to filter out XYZ/foo here. In
344 * other words, we do not trust the caller on comparing the
345 * prefix part when :(icase) is involved. We do exact
346 * comparison ourselves.
348 * Normally the caller (common_prefix_len() in fact) does
349 * _exact_ matching on name[-prefix+1..-1] and we do not need
350 * to check that part. Be defensive and check it anyway, in
351 * case common_prefix_len is changed, or a new caller is
352 * introduced that does not use common_prefix_len.
354 * If the penalty turns out too high when prefix is really
355 * long, maybe change it to
356 * strncmp(match, name, item->prefix - prefix)
358 if (item
->prefix
&& (item
->magic
& PATHSPEC_ICASE
) &&
359 strncmp(item
->match
, name
- prefix
, item
->prefix
))
362 if (item
->attr_match_nr
&&
363 !match_pathspec_attrs(istate
, name
, namelen
, item
))
366 /* If the match was just the prefix, we matched */
368 return MATCHED_RECURSIVELY
;
370 if (matchlen
<= namelen
&& !ps_strncmp(item
, match
, name
, matchlen
)) {
371 if (matchlen
== namelen
)
372 return MATCHED_EXACTLY
;
374 if (match
[matchlen
-1] == '/' || name
[matchlen
] == '/')
375 return MATCHED_RECURSIVELY
;
376 } else if ((flags
& DO_MATCH_DIRECTORY
) &&
377 match
[matchlen
- 1] == '/' &&
378 namelen
== matchlen
- 1 &&
379 !ps_strncmp(item
, match
, name
, namelen
))
380 return MATCHED_EXACTLY
;
382 if (item
->nowildcard_len
< item
->len
&&
383 !git_fnmatch(item
, match
, name
,
384 item
->nowildcard_len
- prefix
))
385 return MATCHED_FNMATCH
;
387 /* Perform checks to see if "name" is a leading string of the pathspec */
388 if ( (flags
& DO_MATCH_LEADING_PATHSPEC
) &&
389 !(flags
& DO_MATCH_EXCLUDE
)) {
390 /* name is a literal prefix of the pathspec */
391 int offset
= name
[namelen
-1] == '/' ? 1 : 0;
392 if ((namelen
< matchlen
) &&
393 (match
[namelen
-offset
] == '/') &&
394 !ps_strncmp(item
, match
, name
, namelen
))
395 return MATCHED_RECURSIVELY_LEADING_PATHSPEC
;
397 /* name doesn't match up to the first wild character */
398 if (item
->nowildcard_len
< item
->len
&&
399 ps_strncmp(item
, match
, name
,
400 item
->nowildcard_len
- prefix
))
404 * name has no wildcard, and it didn't match as a leading
405 * pathspec so return.
407 if (item
->nowildcard_len
== item
->len
)
411 * Here is where we would perform a wildmatch to check if
412 * "name" can be matched as a directory (or a prefix) against
413 * the pathspec. Since wildmatch doesn't have this capability
414 * at the present we have to punt and say that it is a match,
415 * potentially returning a false positive
416 * The submodules themselves will be able to perform more
417 * accurate matching to determine if the pathspec matches.
419 return MATCHED_RECURSIVELY_LEADING_PATHSPEC
;
426 * do_match_pathspec() is meant to ONLY be called by
427 * match_pathspec_with_flags(); calling it directly risks pathspecs
428 * like ':!unwanted_path' being ignored.
430 * Given a name and a list of pathspecs, returns the nature of the
431 * closest (i.e. most specific) match of the name to any of the
434 * The caller typically calls this multiple times with the same
435 * pathspec and seen[] array but with different name/namelen
436 * (e.g. entries from the index) and is interested in seeing if and
437 * how each pathspec matches all the names it calls this function
438 * with. A mark is left in the seen[] array for each pathspec element
439 * indicating the closest type of match that element achieved, so if
440 * seen[n] remains zero after multiple invocations, that means the nth
441 * pathspec did not match any names, which could indicate that the
442 * user mistyped the nth pathspec.
444 static int do_match_pathspec(const struct index_state
*istate
,
445 const struct pathspec
*ps
,
446 const char *name
, int namelen
,
447 int prefix
, char *seen
,
450 int i
, retval
= 0, exclude
= flags
& DO_MATCH_EXCLUDE
;
462 if (!ps
->recursive
||
463 !(ps
->magic
& PATHSPEC_MAXDEPTH
) ||
465 return MATCHED_RECURSIVELY
;
467 if (within_depth(name
, namelen
, 0, ps
->max_depth
))
468 return MATCHED_EXACTLY
;
476 for (i
= ps
->nr
- 1; i
>= 0; i
--) {
479 if ((!exclude
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
) ||
480 ( exclude
&& !(ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)))
483 if (seen
&& seen
[i
] == MATCHED_EXACTLY
)
486 * Make exclude patterns optional and never report
487 * "pathspec ':(exclude)foo' matches no files"
489 if (seen
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)
490 seen
[i
] = MATCHED_FNMATCH
;
491 how
= match_pathspec_item(istate
, ps
->items
+i
, prefix
, name
,
494 (ps
->magic
& PATHSPEC_MAXDEPTH
) &&
495 ps
->max_depth
!= -1 &&
496 how
&& how
!= MATCHED_FNMATCH
) {
497 int len
= ps
->items
[i
].len
;
498 if (name
[len
] == '/')
500 if (within_depth(name
+len
, namelen
-len
, 0, ps
->max_depth
))
501 how
= MATCHED_EXACTLY
;
508 if (seen
&& seen
[i
] < how
)
515 static int match_pathspec_with_flags(const struct index_state
*istate
,
516 const struct pathspec
*ps
,
517 const char *name
, int namelen
,
518 int prefix
, char *seen
, unsigned flags
)
520 int positive
, negative
;
521 positive
= do_match_pathspec(istate
, ps
, name
, namelen
,
522 prefix
, seen
, flags
);
523 if (!(ps
->magic
& PATHSPEC_EXCLUDE
) || !positive
)
525 negative
= do_match_pathspec(istate
, ps
, name
, namelen
,
527 flags
| DO_MATCH_EXCLUDE
);
528 return negative
? 0 : positive
;
531 int match_pathspec(const struct index_state
*istate
,
532 const struct pathspec
*ps
,
533 const char *name
, int namelen
,
534 int prefix
, char *seen
, int is_dir
)
536 unsigned flags
= is_dir
? DO_MATCH_DIRECTORY
: 0;
537 return match_pathspec_with_flags(istate
, ps
, name
, namelen
,
538 prefix
, seen
, flags
);
542 * Check if a submodule is a superset of the pathspec
544 int submodule_path_match(const struct index_state
*istate
,
545 const struct pathspec
*ps
,
546 const char *submodule_name
,
549 int matched
= match_pathspec_with_flags(istate
, ps
, submodule_name
,
550 strlen(submodule_name
),
553 DO_MATCH_LEADING_PATHSPEC
);
557 int report_path_error(const char *ps_matched
,
558 const struct pathspec
*pathspec
)
561 * Make sure all pathspec matched; otherwise it is an error.
564 for (num
= 0; num
< pathspec
->nr
; num
++) {
565 int other
, found_dup
;
570 * The caller might have fed identical pathspec
571 * twice. Do not barf on such a mistake.
572 * FIXME: parse_pathspec should have eliminated
573 * duplicate pathspec.
575 for (found_dup
= other
= 0;
576 !found_dup
&& other
< pathspec
->nr
;
578 if (other
== num
|| !ps_matched
[other
])
580 if (!strcmp(pathspec
->items
[other
].original
,
581 pathspec
->items
[num
].original
))
583 * Ok, we have a match already.
590 error(_("pathspec '%s' did not match any file(s) known to git"),
591 pathspec
->items
[num
].original
);
598 * Return the length of the "simple" part of a path match limiter.
600 int simple_length(const char *match
)
605 unsigned char c
= *match
++;
607 if (c
== '\0' || is_glob_special(c
))
612 int no_wildcard(const char *string
)
614 return string
[simple_length(string
)] == '\0';
617 void parse_path_pattern(const char **pattern
,
622 const char *p
= *pattern
;
627 *flags
|= PATTERN_FLAG_NEGATIVE
;
631 if (len
&& p
[len
- 1] == '/') {
633 *flags
|= PATTERN_FLAG_MUSTBEDIR
;
635 for (i
= 0; i
< len
; i
++) {
640 *flags
|= PATTERN_FLAG_NODIR
;
641 *nowildcardlen
= simple_length(p
);
643 * we should have excluded the trailing slash from 'p' too,
644 * but that's one more allocation. Instead just make sure
645 * nowildcardlen does not exceed real patternlen
647 if (*nowildcardlen
> len
)
648 *nowildcardlen
= len
;
649 if (*p
== '*' && no_wildcard(p
+ 1))
650 *flags
|= PATTERN_FLAG_ENDSWITH
;
655 int pl_hashmap_cmp(const void *unused_cmp_data
,
656 const struct hashmap_entry
*a
,
657 const struct hashmap_entry
*b
,
660 const struct pattern_entry
*ee1
=
661 container_of(a
, struct pattern_entry
, ent
);
662 const struct pattern_entry
*ee2
=
663 container_of(b
, struct pattern_entry
, ent
);
665 size_t min_len
= ee1
->patternlen
<= ee2
->patternlen
670 return strncasecmp(ee1
->pattern
, ee2
->pattern
, min_len
);
671 return strncmp(ee1
->pattern
, ee2
->pattern
, min_len
);
674 static char *dup_and_filter_pattern(const char *pattern
)
678 char *result
= xstrdup(pattern
);
684 /* skip escape characters (once) */
704 static void add_pattern_to_hashsets(struct pattern_list
*pl
, struct path_pattern
*given
)
706 struct pattern_entry
*translated
;
709 const char *prev
, *cur
, *next
;
711 if (!pl
->use_cone_patterns
)
714 if (given
->flags
& PATTERN_FLAG_NEGATIVE
&&
715 given
->flags
& PATTERN_FLAG_MUSTBEDIR
&&
716 !strcmp(given
->pattern
, "/*")) {
721 if (!given
->flags
&& !strcmp(given
->pattern
, "/*")) {
726 if (given
->patternlen
< 2 ||
727 *given
->pattern
== '*' ||
728 strstr(given
->pattern
, "**")) {
729 /* Not a cone pattern. */
730 warning(_("unrecognized pattern: '%s'"), given
->pattern
);
734 prev
= given
->pattern
;
735 cur
= given
->pattern
+ 1;
736 next
= given
->pattern
+ 2;
739 /* Watch for glob characters '*', '\', '[', '?' */
740 if (!is_glob_special(*cur
))
743 /* But only if *prev != '\\' */
747 /* But allow the initial '\' */
749 is_glob_special(*next
))
752 /* But a trailing '/' then '*' is fine */
758 /* Not a cone pattern. */
759 warning(_("unrecognized pattern: '%s'"), given
->pattern
);
768 if (given
->patternlen
> 2 &&
769 !strcmp(given
->pattern
+ given
->patternlen
- 2, "/*")) {
770 if (!(given
->flags
& PATTERN_FLAG_NEGATIVE
)) {
771 /* Not a cone pattern. */
772 warning(_("unrecognized pattern: '%s'"), given
->pattern
);
776 truncated
= dup_and_filter_pattern(given
->pattern
);
778 translated
= xmalloc(sizeof(struct pattern_entry
));
779 translated
->pattern
= truncated
;
780 translated
->patternlen
= given
->patternlen
- 2;
781 hashmap_entry_init(&translated
->ent
,
783 strihash(translated
->pattern
) :
784 strhash(translated
->pattern
));
786 if (!hashmap_get_entry(&pl
->recursive_hashmap
,
787 translated
, ent
, NULL
)) {
788 /* We did not see the "parent" included */
789 warning(_("unrecognized negative pattern: '%s'"),
796 hashmap_add(&pl
->parent_hashmap
, &translated
->ent
);
797 hashmap_remove(&pl
->recursive_hashmap
, &translated
->ent
, &data
);
802 if (given
->flags
& PATTERN_FLAG_NEGATIVE
) {
803 warning(_("unrecognized negative pattern: '%s'"),
808 translated
= xmalloc(sizeof(struct pattern_entry
));
810 translated
->pattern
= dup_and_filter_pattern(given
->pattern
);
811 translated
->patternlen
= given
->patternlen
;
812 hashmap_entry_init(&translated
->ent
,
814 strihash(translated
->pattern
) :
815 strhash(translated
->pattern
));
817 hashmap_add(&pl
->recursive_hashmap
, &translated
->ent
);
819 if (hashmap_get_entry(&pl
->parent_hashmap
, translated
, ent
, NULL
)) {
820 /* we already included this at the parent level */
821 warning(_("your sparse-checkout file may have issues: pattern '%s' is repeated"),
823 hashmap_remove(&pl
->parent_hashmap
, &translated
->ent
, &data
);
831 warning(_("disabling cone pattern matching"));
832 hashmap_clear_and_free(&pl
->parent_hashmap
, struct pattern_entry
, ent
);
833 hashmap_clear_and_free(&pl
->recursive_hashmap
, struct pattern_entry
, ent
);
834 pl
->use_cone_patterns
= 0;
837 static int hashmap_contains_path(struct hashmap
*map
,
838 struct strbuf
*pattern
)
840 struct pattern_entry p
;
842 /* Check straight mapping */
843 p
.pattern
= pattern
->buf
;
844 p
.patternlen
= pattern
->len
;
845 hashmap_entry_init(&p
.ent
,
847 strihash(p
.pattern
) :
849 return !!hashmap_get_entry(map
, &p
, ent
, NULL
);
852 int hashmap_contains_parent(struct hashmap
*map
,
854 struct strbuf
*buffer
)
858 strbuf_setlen(buffer
, 0);
861 strbuf_addch(buffer
, '/');
863 strbuf_addstr(buffer
, path
);
865 slash_pos
= strrchr(buffer
->buf
, '/');
867 while (slash_pos
> buffer
->buf
) {
868 strbuf_setlen(buffer
, slash_pos
- buffer
->buf
);
870 if (hashmap_contains_path(map
, buffer
))
873 slash_pos
= strrchr(buffer
->buf
, '/');
879 void add_pattern(const char *string
, const char *base
,
880 int baselen
, struct pattern_list
*pl
, int srcpos
)
882 struct path_pattern
*pattern
;
887 parse_path_pattern(&string
, &patternlen
, &flags
, &nowildcardlen
);
888 if (flags
& PATTERN_FLAG_MUSTBEDIR
) {
889 FLEXPTR_ALLOC_MEM(pattern
, pattern
, string
, patternlen
);
891 pattern
= xmalloc(sizeof(*pattern
));
892 pattern
->pattern
= string
;
894 pattern
->patternlen
= patternlen
;
895 pattern
->nowildcardlen
= nowildcardlen
;
896 pattern
->base
= base
;
897 pattern
->baselen
= baselen
;
898 pattern
->flags
= flags
;
899 pattern
->srcpos
= srcpos
;
900 ALLOC_GROW(pl
->patterns
, pl
->nr
+ 1, pl
->alloc
);
901 pl
->patterns
[pl
->nr
++] = pattern
;
904 add_pattern_to_hashsets(pl
, pattern
);
907 static int read_skip_worktree_file_from_index(const struct index_state
*istate
,
909 size_t *size_out
, char **data_out
,
910 struct oid_stat
*oid_stat
)
915 pos
= index_name_pos(istate
, path
, len
);
918 if (!ce_skip_worktree(istate
->cache
[pos
]))
921 return do_read_blob(&istate
->cache
[pos
]->oid
, oid_stat
, size_out
, data_out
);
925 * Frees memory within pl which was allocated for exclude patterns and
926 * the file buffer. Does not free pl itself.
928 void clear_pattern_list(struct pattern_list
*pl
)
932 for (i
= 0; i
< pl
->nr
; i
++)
933 free(pl
->patterns
[i
]);
936 hashmap_clear_and_free(&pl
->recursive_hashmap
, struct pattern_entry
, ent
);
937 hashmap_clear_and_free(&pl
->parent_hashmap
, struct pattern_entry
, ent
);
939 memset(pl
, 0, sizeof(*pl
));
942 static void trim_trailing_spaces(char *buf
)
944 char *p
, *last_space
= NULL
;
946 for (p
= buf
; *p
; p
++)
966 * Given a subdirectory name and "dir" of the current directory,
967 * search the subdir in "dir" and return it, or create a new one if it
968 * does not exist in "dir".
970 * If "name" has the trailing slash, it'll be excluded in the search.
972 static struct untracked_cache_dir
*lookup_untracked(struct untracked_cache
*uc
,
973 struct untracked_cache_dir
*dir
,
974 const char *name
, int len
)
977 struct untracked_cache_dir
*d
;
980 if (len
&& name
[len
- 1] == '/')
984 while (last
> first
) {
985 int cmp
, next
= first
+ ((last
- first
) >> 1);
987 cmp
= strncmp(name
, d
->name
, len
);
988 if (!cmp
&& strlen(d
->name
) > len
)
1000 FLEX_ALLOC_MEM(d
, name
, name
, len
);
1002 ALLOC_GROW(dir
->dirs
, dir
->dirs_nr
+ 1, dir
->dirs_alloc
);
1003 MOVE_ARRAY(dir
->dirs
+ first
+ 1, dir
->dirs
+ first
,
1004 dir
->dirs_nr
- first
);
1006 dir
->dirs
[first
] = d
;
1010 static void do_invalidate_gitignore(struct untracked_cache_dir
*dir
)
1014 dir
->untracked_nr
= 0;
1015 for (i
= 0; i
< dir
->dirs_nr
; i
++)
1016 do_invalidate_gitignore(dir
->dirs
[i
]);
1019 static void invalidate_gitignore(struct untracked_cache
*uc
,
1020 struct untracked_cache_dir
*dir
)
1022 uc
->gitignore_invalidated
++;
1023 do_invalidate_gitignore(dir
);
1026 static void invalidate_directory(struct untracked_cache
*uc
,
1027 struct untracked_cache_dir
*dir
)
1032 * Invalidation increment here is just roughly correct. If
1033 * untracked_nr or any of dirs[].recurse is non-zero, we
1034 * should increment dir_invalidated too. But that's more
1038 uc
->dir_invalidated
++;
1041 dir
->untracked_nr
= 0;
1042 for (i
= 0; i
< dir
->dirs_nr
; i
++)
1043 dir
->dirs
[i
]->recurse
= 0;
1046 static int add_patterns_from_buffer(char *buf
, size_t size
,
1047 const char *base
, int baselen
,
1048 struct pattern_list
*pl
);
1051 * Given a file with name "fname", read it (either from disk, or from
1052 * an index if 'istate' is non-null), parse it and store the
1053 * exclude rules in "pl".
1055 * If "oid_stat" is not NULL, compute oid of the exclude file and fill
1056 * stat data from disk (only valid if add_patterns returns zero). If
1057 * oid_stat.valid is non-zero, "oid_stat" must contain good value as input.
1059 static int add_patterns(const char *fname
, const char *base
, int baselen
,
1060 struct pattern_list
*pl
, struct index_state
*istate
,
1061 struct oid_stat
*oid_stat
)
1069 fd
= open(fname
, O_RDONLY
);
1070 if (fd
< 0 || fstat(fd
, &st
) < 0) {
1072 warn_on_fopen_errors(fname
);
1077 r
= read_skip_worktree_file_from_index(istate
, fname
,
1083 size
= xsize_t(st
.st_size
);
1086 fill_stat_data(&oid_stat
->stat
, &st
);
1087 oidcpy(&oid_stat
->oid
, the_hash_algo
->empty_blob
);
1088 oid_stat
->valid
= 1;
1093 buf
= xmallocz(size
);
1094 if (read_in_full(fd
, buf
, size
) != size
) {
1103 if (oid_stat
->valid
&&
1104 !match_stat_data_racy(istate
, &oid_stat
->stat
, &st
))
1105 ; /* no content change, oid_stat->oid still good */
1107 (pos
= index_name_pos(istate
, fname
, strlen(fname
))) >= 0 &&
1108 !ce_stage(istate
->cache
[pos
]) &&
1109 ce_uptodate(istate
->cache
[pos
]) &&
1110 !would_convert_to_git(istate
, fname
))
1111 oidcpy(&oid_stat
->oid
,
1112 &istate
->cache
[pos
]->oid
);
1114 hash_object_file(the_hash_algo
, buf
, size
,
1115 "blob", &oid_stat
->oid
);
1116 fill_stat_data(&oid_stat
->stat
, &st
);
1117 oid_stat
->valid
= 1;
1121 add_patterns_from_buffer(buf
, size
, base
, baselen
, pl
);
1125 static int add_patterns_from_buffer(char *buf
, size_t size
,
1126 const char *base
, int baselen
,
1127 struct pattern_list
*pl
)
1132 hashmap_init(&pl
->recursive_hashmap
, pl_hashmap_cmp
, NULL
, 0);
1133 hashmap_init(&pl
->parent_hashmap
, pl_hashmap_cmp
, NULL
, 0);
1137 if (skip_utf8_bom(&buf
, size
))
1138 size
-= buf
- pl
->filebuf
;
1142 for (i
= 0; i
< size
; i
++) {
1143 if (buf
[i
] == '\n') {
1144 if (entry
!= buf
+ i
&& entry
[0] != '#') {
1145 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
1146 trim_trailing_spaces(entry
);
1147 add_pattern(entry
, base
, baselen
, pl
, lineno
);
1150 entry
= buf
+ i
+ 1;
1156 int add_patterns_from_file_to_list(const char *fname
, const char *base
,
1157 int baselen
, struct pattern_list
*pl
,
1158 struct index_state
*istate
)
1160 return add_patterns(fname
, base
, baselen
, pl
, istate
, NULL
);
1163 int add_patterns_from_blob_to_list(
1164 struct object_id
*oid
,
1165 const char *base
, int baselen
,
1166 struct pattern_list
*pl
)
1172 r
= do_read_blob(oid
, NULL
, &size
, &buf
);
1176 add_patterns_from_buffer(buf
, size
, base
, baselen
, pl
);
1180 struct pattern_list
*add_pattern_list(struct dir_struct
*dir
,
1181 int group_type
, const char *src
)
1183 struct pattern_list
*pl
;
1184 struct exclude_list_group
*group
;
1186 group
= &dir
->exclude_list_group
[group_type
];
1187 ALLOC_GROW(group
->pl
, group
->nr
+ 1, group
->alloc
);
1188 pl
= &group
->pl
[group
->nr
++];
1189 memset(pl
, 0, sizeof(*pl
));
1195 * Used to set up core.excludesfile and .git/info/exclude lists.
1197 static void add_patterns_from_file_1(struct dir_struct
*dir
, const char *fname
,
1198 struct oid_stat
*oid_stat
)
1200 struct pattern_list
*pl
;
1202 * catch setup_standard_excludes() that's called before
1203 * dir->untracked is assigned. That function behaves
1204 * differently when dir->untracked is non-NULL.
1206 if (!dir
->untracked
)
1207 dir
->unmanaged_exclude_files
++;
1208 pl
= add_pattern_list(dir
, EXC_FILE
, fname
);
1209 if (add_patterns(fname
, "", 0, pl
, NULL
, oid_stat
) < 0)
1210 die(_("cannot use %s as an exclude file"), fname
);
1213 void add_patterns_from_file(struct dir_struct
*dir
, const char *fname
)
1215 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
1216 add_patterns_from_file_1(dir
, fname
, NULL
);
1219 int match_basename(const char *basename
, int basenamelen
,
1220 const char *pattern
, int prefix
, int patternlen
,
1223 if (prefix
== patternlen
) {
1224 if (patternlen
== basenamelen
&&
1225 !fspathncmp(pattern
, basename
, basenamelen
))
1227 } else if (flags
& PATTERN_FLAG_ENDSWITH
) {
1228 /* "*literal" matching against "fooliteral" */
1229 if (patternlen
- 1 <= basenamelen
&&
1230 !fspathncmp(pattern
+ 1,
1231 basename
+ basenamelen
- (patternlen
- 1),
1235 if (fnmatch_icase_mem(pattern
, patternlen
,
1236 basename
, basenamelen
,
1243 int match_pathname(const char *pathname
, int pathlen
,
1244 const char *base
, int baselen
,
1245 const char *pattern
, int prefix
, int patternlen
,
1252 * match with FNM_PATHNAME; the pattern has base implicitly
1255 if (*pattern
== '/') {
1262 * baselen does not count the trailing slash. base[] may or
1263 * may not end with a trailing slash though.
1265 if (pathlen
< baselen
+ 1 ||
1266 (baselen
&& pathname
[baselen
] != '/') ||
1267 fspathncmp(pathname
, base
, baselen
))
1270 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
1271 name
= pathname
+ pathlen
- namelen
;
1275 * if the non-wildcard part is longer than the
1276 * remaining pathname, surely it cannot match.
1278 if (prefix
> namelen
)
1281 if (fspathncmp(pattern
, name
, prefix
))
1284 patternlen
-= prefix
;
1289 * If the whole pattern did not have a wildcard,
1290 * then our prefix match is all we need; we
1291 * do not need to call fnmatch at all.
1293 if (!patternlen
&& !namelen
)
1297 return fnmatch_icase_mem(pattern
, patternlen
,
1303 * Scan the given exclude list in reverse to see whether pathname
1304 * should be ignored. The first match (i.e. the last on the list), if
1305 * any, determines the fate. Returns the exclude_list element which
1306 * matched, or NULL for undecided.
1308 static struct path_pattern
*last_matching_pattern_from_list(const char *pathname
,
1310 const char *basename
,
1312 struct pattern_list
*pl
,
1313 struct index_state
*istate
)
1315 struct path_pattern
*res
= NULL
; /* undecided */
1319 return NULL
; /* undefined */
1321 for (i
= pl
->nr
- 1; 0 <= i
; i
--) {
1322 struct path_pattern
*pattern
= pl
->patterns
[i
];
1323 const char *exclude
= pattern
->pattern
;
1324 int prefix
= pattern
->nowildcardlen
;
1326 if (pattern
->flags
& PATTERN_FLAG_MUSTBEDIR
) {
1327 *dtype
= resolve_dtype(*dtype
, istate
, pathname
, pathlen
);
1328 if (*dtype
!= DT_DIR
)
1332 if (pattern
->flags
& PATTERN_FLAG_NODIR
) {
1333 if (match_basename(basename
,
1334 pathlen
- (basename
- pathname
),
1335 exclude
, prefix
, pattern
->patternlen
,
1343 assert(pattern
->baselen
== 0 ||
1344 pattern
->base
[pattern
->baselen
- 1] == '/');
1345 if (match_pathname(pathname
, pathlen
,
1347 pattern
->baselen
? pattern
->baselen
- 1 : 0,
1348 exclude
, prefix
, pattern
->patternlen
,
1358 * Scan the list of patterns to determine if the ordered list
1359 * of patterns matches on 'pathname'.
1361 * Return 1 for a match, 0 for not matched and -1 for undecided.
1363 enum pattern_match_result
path_matches_pattern_list(
1364 const char *pathname
, int pathlen
,
1365 const char *basename
, int *dtype
,
1366 struct pattern_list
*pl
,
1367 struct index_state
*istate
)
1369 struct path_pattern
*pattern
;
1370 struct strbuf parent_pathname
= STRBUF_INIT
;
1371 int result
= NOT_MATCHED
;
1372 const char *slash_pos
;
1374 if (!pl
->use_cone_patterns
) {
1375 pattern
= last_matching_pattern_from_list(pathname
, pathlen
, basename
,
1378 if (pattern
->flags
& PATTERN_FLAG_NEGATIVE
)
1390 strbuf_addch(&parent_pathname
, '/');
1391 strbuf_add(&parent_pathname
, pathname
, pathlen
);
1393 if (hashmap_contains_path(&pl
->recursive_hashmap
,
1394 &parent_pathname
)) {
1395 result
= MATCHED_RECURSIVE
;
1399 slash_pos
= strrchr(parent_pathname
.buf
, '/');
1401 if (slash_pos
== parent_pathname
.buf
) {
1402 /* include every file in root */
1407 strbuf_setlen(&parent_pathname
, slash_pos
- parent_pathname
.buf
);
1409 if (hashmap_contains_path(&pl
->parent_hashmap
, &parent_pathname
)) {
1414 if (hashmap_contains_parent(&pl
->recursive_hashmap
,
1417 result
= MATCHED_RECURSIVE
;
1420 strbuf_release(&parent_pathname
);
1424 static struct path_pattern
*last_matching_pattern_from_lists(
1425 struct dir_struct
*dir
, struct index_state
*istate
,
1426 const char *pathname
, int pathlen
,
1427 const char *basename
, int *dtype_p
)
1430 struct exclude_list_group
*group
;
1431 struct path_pattern
*pattern
;
1432 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
1433 group
= &dir
->exclude_list_group
[i
];
1434 for (j
= group
->nr
- 1; j
>= 0; j
--) {
1435 pattern
= last_matching_pattern_from_list(
1436 pathname
, pathlen
, basename
, dtype_p
,
1437 &group
->pl
[j
], istate
);
1446 * Loads the per-directory exclude list for the substring of base
1447 * which has a char length of baselen.
1449 static void prep_exclude(struct dir_struct
*dir
,
1450 struct index_state
*istate
,
1451 const char *base
, int baselen
)
1453 struct exclude_list_group
*group
;
1454 struct pattern_list
*pl
;
1455 struct exclude_stack
*stk
= NULL
;
1456 struct untracked_cache_dir
*untracked
;
1459 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1462 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1463 * which originate from directories not in the prefix of the
1464 * path being checked.
1466 while ((stk
= dir
->exclude_stack
) != NULL
) {
1467 if (stk
->baselen
<= baselen
&&
1468 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1470 pl
= &group
->pl
[dir
->exclude_stack
->exclude_ix
];
1471 dir
->exclude_stack
= stk
->prev
;
1472 dir
->pattern
= NULL
;
1473 free((char *)pl
->src
); /* see strbuf_detach() below */
1474 clear_pattern_list(pl
);
1479 /* Skip traversing into sub directories if the parent is excluded */
1484 * Lazy initialization. All call sites currently just
1485 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1486 * them seems lots of work for little benefit.
1488 if (!dir
->basebuf
.buf
)
1489 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1491 /* Read from the parent directories and push them down. */
1492 current
= stk
? stk
->baselen
: -1;
1493 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1495 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1499 while (current
< baselen
) {
1501 struct oid_stat oid_stat
;
1503 CALLOC_ARRAY(stk
, 1);
1508 cp
= strchr(base
+ current
+ 1, '/');
1510 die("oops in prep_exclude");
1513 lookup_untracked(dir
->untracked
, untracked
,
1515 cp
- base
- current
);
1517 stk
->prev
= dir
->exclude_stack
;
1518 stk
->baselen
= cp
- base
;
1519 stk
->exclude_ix
= group
->nr
;
1520 stk
->ucd
= untracked
;
1521 pl
= add_pattern_list(dir
, EXC_DIRS
, NULL
);
1522 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1523 assert(stk
->baselen
== dir
->basebuf
.len
);
1525 /* Abort if the directory is excluded */
1528 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1529 dir
->pattern
= last_matching_pattern_from_lists(dir
,
1531 dir
->basebuf
.buf
, stk
->baselen
- 1,
1532 dir
->basebuf
.buf
+ current
, &dt
);
1533 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1535 dir
->pattern
->flags
& PATTERN_FLAG_NEGATIVE
)
1536 dir
->pattern
= NULL
;
1538 dir
->exclude_stack
= stk
;
1543 /* Try to read per-directory file */
1544 oidclr(&oid_stat
.oid
);
1546 if (dir
->exclude_per_dir
&&
1548 * If we know that no files have been added in
1549 * this directory (i.e. valid_cached_dir() has
1550 * been executed and set untracked->valid) ..
1552 (!untracked
|| !untracked
->valid
||
1554 * .. and .gitignore does not exist before
1555 * (i.e. null exclude_oid). Then we can skip
1556 * loading .gitignore, which would result in
1559 !is_null_oid(&untracked
->exclude_oid
))) {
1561 * dir->basebuf gets reused by the traversal, but we
1562 * need fname to remain unchanged to ensure the src
1563 * member of each struct path_pattern correctly
1564 * back-references its source file. Other invocations
1565 * of add_pattern_list provide stable strings, so we
1566 * strbuf_detach() and free() here in the caller.
1568 struct strbuf sb
= STRBUF_INIT
;
1569 strbuf_addbuf(&sb
, &dir
->basebuf
);
1570 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1571 pl
->src
= strbuf_detach(&sb
, NULL
);
1572 add_patterns(pl
->src
, pl
->src
, stk
->baselen
, pl
, istate
,
1573 untracked
? &oid_stat
: NULL
);
1576 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1577 * will first be called in valid_cached_dir() then maybe many
1578 * times more in last_matching_pattern(). When the cache is
1579 * used, last_matching_pattern() will not be called and
1580 * reading .gitignore content will be a waste.
1582 * So when it's called by valid_cached_dir() and we can get
1583 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1584 * modified on work tree), we could delay reading the
1585 * .gitignore content until we absolutely need it in
1586 * last_matching_pattern(). Be careful about ignore rule
1587 * order, though, if you do that.
1590 !oideq(&oid_stat
.oid
, &untracked
->exclude_oid
)) {
1591 invalidate_gitignore(dir
->untracked
, untracked
);
1592 oidcpy(&untracked
->exclude_oid
, &oid_stat
.oid
);
1594 dir
->exclude_stack
= stk
;
1595 current
= stk
->baselen
;
1597 strbuf_setlen(&dir
->basebuf
, baselen
);
1601 * Loads the exclude lists for the directory containing pathname, then
1602 * scans all exclude lists to determine whether pathname is excluded.
1603 * Returns the exclude_list element which matched, or NULL for
1606 struct path_pattern
*last_matching_pattern(struct dir_struct
*dir
,
1607 struct index_state
*istate
,
1608 const char *pathname
,
1611 int pathlen
= strlen(pathname
);
1612 const char *basename
= strrchr(pathname
, '/');
1613 basename
= (basename
) ? basename
+1 : pathname
;
1615 prep_exclude(dir
, istate
, pathname
, basename
-pathname
);
1618 return dir
->pattern
;
1620 return last_matching_pattern_from_lists(dir
, istate
, pathname
, pathlen
,
1625 * Loads the exclude lists for the directory containing pathname, then
1626 * scans all exclude lists to determine whether pathname is excluded.
1627 * Returns 1 if true, otherwise 0.
1629 int is_excluded(struct dir_struct
*dir
, struct index_state
*istate
,
1630 const char *pathname
, int *dtype_p
)
1632 struct path_pattern
*pattern
=
1633 last_matching_pattern(dir
, istate
, pathname
, dtype_p
);
1635 return pattern
->flags
& PATTERN_FLAG_NEGATIVE
? 0 : 1;
1639 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1641 struct dir_entry
*ent
;
1643 FLEX_ALLOC_MEM(ent
, name
, pathname
, len
);
1648 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
,
1649 struct index_state
*istate
,
1650 const char *pathname
, int len
)
1652 if (index_file_exists(istate
, pathname
, len
, ignore_case
))
1655 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1656 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1659 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
,
1660 struct index_state
*istate
,
1661 const char *pathname
, int len
)
1663 if (!index_name_is_other(istate
, pathname
, len
))
1666 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1667 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1671 index_nonexistent
= 0,
1677 * Do not use the alphabetically sorted index to look up
1678 * the directory name; instead, use the case insensitive
1681 static enum exist_status
directory_exists_in_index_icase(struct index_state
*istate
,
1682 const char *dirname
, int len
)
1684 struct cache_entry
*ce
;
1686 if (index_dir_exists(istate
, dirname
, len
))
1687 return index_directory
;
1689 ce
= index_file_exists(istate
, dirname
, len
, ignore_case
);
1690 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1691 return index_gitdir
;
1693 return index_nonexistent
;
1697 * The index sorts alphabetically by entry name, which
1698 * means that a gitlink sorts as '\0' at the end, while
1699 * a directory (which is defined not as an entry, but as
1700 * the files it contains) will sort with the '/' at the
1703 static enum exist_status
directory_exists_in_index(struct index_state
*istate
,
1704 const char *dirname
, int len
)
1709 return directory_exists_in_index_icase(istate
, dirname
, len
);
1711 pos
= index_name_pos(istate
, dirname
, len
);
1714 while (pos
< istate
->cache_nr
) {
1715 const struct cache_entry
*ce
= istate
->cache
[pos
++];
1716 unsigned char endchar
;
1718 if (strncmp(ce
->name
, dirname
, len
))
1720 endchar
= ce
->name
[len
];
1724 return index_directory
;
1725 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1726 return index_gitdir
;
1728 return index_nonexistent
;
1732 * When we find a directory when traversing the filesystem, we
1733 * have three distinct cases:
1736 * - see it as a directory
1739 * and which one we choose depends on a combination of existing
1740 * git index contents and the flags passed into the directory
1741 * traversal routine.
1743 * Case 1: If we *already* have entries in the index under that
1744 * directory name, we always recurse into the directory to see
1747 * Case 2: If we *already* have that directory name as a gitlink,
1748 * we always continue to see it as a gitlink, regardless of whether
1749 * there is an actual git directory there or not (it might not
1750 * be checked out as a subproject!)
1752 * Case 3: if we didn't have it in the index previously, we
1753 * have a few sub-cases:
1755 * (a) if DIR_SHOW_OTHER_DIRECTORIES flag is set, we show it as
1756 * just a directory, unless DIR_HIDE_EMPTY_DIRECTORIES is
1757 * also true, in which case we need to check if it contains any
1758 * untracked and / or ignored files.
1759 * (b) if it looks like a git directory and we don't have the
1760 * DIR_NO_GITLINKS flag, then we treat it as a gitlink, and
1761 * show it as a directory.
1762 * (c) otherwise, we recurse into it.
1764 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1765 struct index_state
*istate
,
1766 struct untracked_cache_dir
*untracked
,
1767 const char *dirname
, int len
, int baselen
, int excluded
,
1768 const struct pathspec
*pathspec
)
1771 * WARNING: From this function, you can return path_recurse or you
1772 * can call read_directory_recursive() (or neither), but
1773 * you CAN'T DO BOTH.
1775 enum path_treatment state
;
1776 int matches_how
= 0;
1777 int nested_repo
= 0, check_only
, stop_early
;
1778 int old_ignored_nr
, old_untracked_nr
;
1779 /* The "len-1" is to strip the final '/' */
1780 enum exist_status status
= directory_exists_in_index(istate
, dirname
, len
-1);
1782 if (status
== index_directory
)
1783 return path_recurse
;
1784 if (status
== index_gitdir
)
1786 if (status
!= index_nonexistent
)
1787 BUG("Unhandled value for directory_exists_in_index: %d\n", status
);
1790 * We don't want to descend into paths that don't match the necessary
1791 * patterns. Clearly, if we don't have a pathspec, then we can't check
1792 * for matching patterns. Also, if (excluded) then we know we matched
1793 * the exclusion patterns so as an optimization we can skip checking
1794 * for matching patterns.
1796 if (pathspec
&& !excluded
) {
1797 matches_how
= match_pathspec_with_flags(istate
, pathspec
,
1801 DO_MATCH_LEADING_PATHSPEC
);
1807 if ((dir
->flags
& DIR_SKIP_NESTED_GIT
) ||
1808 !(dir
->flags
& DIR_NO_GITLINKS
)) {
1809 struct strbuf sb
= STRBUF_INIT
;
1810 strbuf_addstr(&sb
, dirname
);
1811 nested_repo
= is_nonbare_repository_dir(&sb
);
1812 strbuf_release(&sb
);
1815 if ((dir
->flags
& DIR_SKIP_NESTED_GIT
) ||
1816 (matches_how
== MATCHED_RECURSIVELY_LEADING_PATHSPEC
))
1818 return excluded
? path_excluded
: path_untracked
;
1821 if (!(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)) {
1823 (dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1824 (dir
->flags
& DIR_SHOW_IGNORED_TOO_MODE_MATCHING
)) {
1827 * This is an excluded directory and we are
1828 * showing ignored paths that match an exclude
1829 * pattern. (e.g. show directory as ignored
1830 * only if it matches an exclude pattern).
1831 * This path will either be 'path_excluded`
1832 * (if we are showing empty directories or if
1833 * the directory is not empty), or will be
1834 * 'path_none' (empty directory, and we are
1835 * not showing empty directories).
1837 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1838 return path_excluded
;
1840 if (read_directory_recursive(dir
, istate
, dirname
, len
,
1841 untracked
, 1, 1, pathspec
) == path_excluded
)
1842 return path_excluded
;
1846 return path_recurse
;
1849 assert(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
);
1852 * If we have a pathspec which could match something _below_ this
1853 * directory (e.g. when checking 'subdir/' having a pathspec like
1854 * 'subdir/some/deep/path/file' or 'subdir/widget-*.c'), then we
1857 if (matches_how
== MATCHED_RECURSIVELY_LEADING_PATHSPEC
)
1858 return path_recurse
;
1860 /* Special cases for where this directory is excluded/ignored */
1863 * If DIR_SHOW_OTHER_DIRECTORIES is set and we're not
1864 * hiding empty directories, there is no need to
1865 * recurse into an ignored directory.
1867 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1868 return path_excluded
;
1871 * Even if we are hiding empty directories, we can still avoid
1872 * recursing into ignored directories for DIR_SHOW_IGNORED_TOO
1873 * if DIR_SHOW_IGNORED_TOO_MODE_MATCHING is also set.
1875 if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1876 (dir
->flags
& DIR_SHOW_IGNORED_TOO_MODE_MATCHING
))
1877 return path_excluded
;
1881 * Other than the path_recurse case above, we only need to
1882 * recurse into untracked directories if any of the following
1884 * - DIR_SHOW_IGNORED (because then we need to determine if
1885 * there are ignored entries below)
1886 * - DIR_SHOW_IGNORED_TOO (same as above)
1887 * - DIR_HIDE_EMPTY_DIRECTORIES (because we have to determine if
1888 * the directory is empty)
1891 !(dir
->flags
& (DIR_SHOW_IGNORED
|
1892 DIR_SHOW_IGNORED_TOO
|
1893 DIR_HIDE_EMPTY_DIRECTORIES
))) {
1894 return path_untracked
;
1898 * Even if we don't want to know all the paths under an untracked or
1899 * ignored directory, we may still need to go into the directory to
1900 * determine if it is empty (because with DIR_HIDE_EMPTY_DIRECTORIES,
1901 * an empty directory should be path_none instead of path_excluded or
1904 check_only
= ((dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
) &&
1905 !(dir
->flags
& DIR_SHOW_IGNORED_TOO
));
1908 * However, there's another optimization possible as a subset of
1909 * check_only, based on the cases we have to consider:
1910 * A) Directory matches no exclude patterns:
1911 * * Directory is empty => path_none
1912 * * Directory has an untracked file under it => path_untracked
1913 * * Directory has only ignored files under it => path_excluded
1914 * B) Directory matches an exclude pattern:
1915 * * Directory is empty => path_none
1916 * * Directory has an untracked file under it => path_excluded
1917 * * Directory has only ignored files under it => path_excluded
1918 * In case A, we can exit as soon as we've found an untracked
1919 * file but otherwise have to walk all files. In case B, though,
1920 * we can stop at the first file we find under the directory.
1922 stop_early
= check_only
&& excluded
;
1925 * If /every/ file within an untracked directory is ignored, then
1926 * we want to treat the directory as ignored (for e.g. status
1927 * --porcelain), without listing the individual ignored files
1928 * underneath. To do so, we'll save the current ignored_nr, and
1929 * pop all the ones added after it if it turns out the entire
1930 * directory is ignored. Also, when DIR_SHOW_IGNORED_TOO and
1931 * !DIR_KEEP_UNTRACKED_CONTENTS then we don't want to show
1932 * untracked paths so will need to pop all those off the last
1933 * after we traverse.
1935 old_ignored_nr
= dir
->ignored_nr
;
1936 old_untracked_nr
= dir
->nr
;
1938 /* Actually recurse into dirname now, we'll fixup the state later. */
1939 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1940 dirname
+ baselen
, len
- baselen
);
1941 state
= read_directory_recursive(dir
, istate
, dirname
, len
, untracked
,
1942 check_only
, stop_early
, pathspec
);
1944 /* There are a variety of reasons we may need to fixup the state... */
1945 if (state
== path_excluded
) {
1946 /* state == path_excluded implies all paths under
1947 * dirname were ignored...
1949 * if running e.g. `git status --porcelain --ignored=matching`,
1950 * then we want to see the subpaths that are ignored.
1952 * if running e.g. just `git status --porcelain`, then
1953 * we just want the directory itself to be listed as ignored
1954 * and not the individual paths underneath.
1956 int want_ignored_subpaths
=
1957 ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1958 (dir
->flags
& DIR_SHOW_IGNORED_TOO_MODE_MATCHING
));
1960 if (want_ignored_subpaths
) {
1962 * with --ignored=matching, we want the subpaths
1963 * INSTEAD of the directory itself.
1968 for (i
= old_ignored_nr
+ 1; i
<dir
->ignored_nr
; ++i
)
1969 FREE_AND_NULL(dir
->ignored
[i
]);
1970 dir
->ignored_nr
= old_ignored_nr
;
1975 * We may need to ignore some of the untracked paths we found while
1976 * traversing subdirectories.
1978 if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1979 !(dir
->flags
& DIR_KEEP_UNTRACKED_CONTENTS
)) {
1981 for (i
= old_untracked_nr
+ 1; i
<dir
->nr
; ++i
)
1982 FREE_AND_NULL(dir
->entries
[i
]);
1983 dir
->nr
= old_untracked_nr
;
1987 * If there is nothing under the current directory and we are not
1988 * hiding empty directories, then we need to report on the
1989 * untracked or ignored status of the directory itself.
1991 if (state
== path_none
&& !(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1992 state
= excluded
? path_excluded
: path_untracked
;
1998 * This is an inexact early pruning of any recursive directory
1999 * reading - if the path cannot possibly be in the pathspec,
2000 * return true, and we'll skip it early.
2002 static int simplify_away(const char *path
, int pathlen
,
2003 const struct pathspec
*pathspec
)
2007 if (!pathspec
|| !pathspec
->nr
)
2010 GUARD_PATHSPEC(pathspec
,
2019 for (i
= 0; i
< pathspec
->nr
; i
++) {
2020 const struct pathspec_item
*item
= &pathspec
->items
[i
];
2021 int len
= item
->nowildcard_len
;
2025 if (!ps_strncmp(item
, item
->match
, path
, len
))
2033 * This function tells us whether an excluded path matches a
2034 * list of "interesting" pathspecs. That is, whether a path matched
2035 * by any of the pathspecs could possibly be ignored by excluding
2036 * the specified path. This can happen if:
2038 * 1. the path is mentioned explicitly in the pathspec
2040 * 2. the path is a directory prefix of some element in the
2043 static int exclude_matches_pathspec(const char *path
, int pathlen
,
2044 const struct pathspec
*pathspec
)
2048 if (!pathspec
|| !pathspec
->nr
)
2051 GUARD_PATHSPEC(pathspec
,
2059 for (i
= 0; i
< pathspec
->nr
; i
++) {
2060 const struct pathspec_item
*item
= &pathspec
->items
[i
];
2061 int len
= item
->nowildcard_len
;
2063 if (len
== pathlen
&&
2064 !ps_strncmp(item
, item
->match
, path
, pathlen
))
2066 if (len
> pathlen
&&
2067 item
->match
[pathlen
] == '/' &&
2068 !ps_strncmp(item
, item
->match
, path
, pathlen
))
2074 static int get_index_dtype(struct index_state
*istate
,
2075 const char *path
, int len
)
2078 const struct cache_entry
*ce
;
2080 ce
= index_file_exists(istate
, path
, len
, 0);
2082 if (!ce_uptodate(ce
))
2084 if (S_ISGITLINK(ce
->ce_mode
))
2087 * Nobody actually cares about the
2088 * difference between DT_LNK and DT_REG
2093 /* Try to look it up as a directory */
2094 pos
= index_name_pos(istate
, path
, len
);
2098 while (pos
< istate
->cache_nr
) {
2099 ce
= istate
->cache
[pos
++];
2100 if (strncmp(ce
->name
, path
, len
))
2102 if (ce
->name
[len
] > '/')
2104 if (ce
->name
[len
] < '/')
2106 if (!ce_uptodate(ce
))
2107 break; /* continue? */
2113 static int resolve_dtype(int dtype
, struct index_state
*istate
,
2114 const char *path
, int len
)
2118 if (dtype
!= DT_UNKNOWN
)
2120 dtype
= get_index_dtype(istate
, path
, len
);
2121 if (dtype
!= DT_UNKNOWN
)
2123 if (lstat(path
, &st
))
2125 if (S_ISREG(st
.st_mode
))
2127 if (S_ISDIR(st
.st_mode
))
2129 if (S_ISLNK(st
.st_mode
))
2134 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
2135 struct cached_dir
*cdir
,
2136 struct index_state
*istate
,
2137 struct strbuf
*path
,
2139 const struct pathspec
*pathspec
)
2142 * WARNING: From this function, you can return path_recurse or you
2143 * can call read_directory_recursive() (or neither), but
2144 * you CAN'T DO BOTH.
2146 strbuf_setlen(path
, baselen
);
2148 strbuf_addstr(path
, cdir
->file
);
2149 return path_untracked
;
2151 strbuf_addstr(path
, cdir
->ucd
->name
);
2152 /* treat_one_path() does this before it calls treat_directory() */
2153 strbuf_complete(path
, '/');
2154 if (cdir
->ucd
->check_only
)
2156 * check_only is set as a result of treat_directory() getting
2157 * to its bottom. Verify again the same set of directories
2158 * with check_only set.
2160 return read_directory_recursive(dir
, istate
, path
->buf
, path
->len
,
2161 cdir
->ucd
, 1, 0, pathspec
);
2163 * We get path_recurse in the first run when
2164 * directory_exists_in_index() returns index_nonexistent. We
2165 * are sure that new changes in the index does not impact the
2166 * outcome. Return now.
2168 return path_recurse
;
2171 static enum path_treatment
treat_path(struct dir_struct
*dir
,
2172 struct untracked_cache_dir
*untracked
,
2173 struct cached_dir
*cdir
,
2174 struct index_state
*istate
,
2175 struct strbuf
*path
,
2177 const struct pathspec
*pathspec
)
2179 int has_path_in_index
, dtype
, excluded
;
2182 return treat_path_fast(dir
, cdir
, istate
, path
,
2184 if (is_dot_or_dotdot(cdir
->d_name
) || !fspathcmp(cdir
->d_name
, ".git"))
2186 strbuf_setlen(path
, baselen
);
2187 strbuf_addstr(path
, cdir
->d_name
);
2188 if (simplify_away(path
->buf
, path
->len
, pathspec
))
2191 dtype
= resolve_dtype(cdir
->d_type
, istate
, path
->buf
, path
->len
);
2193 /* Always exclude indexed files */
2194 has_path_in_index
= !!index_file_exists(istate
, path
->buf
, path
->len
,
2196 if (dtype
!= DT_DIR
&& has_path_in_index
)
2200 * When we are looking at a directory P in the working tree,
2201 * there are three cases:
2203 * (1) P exists in the index. Everything inside the directory P in
2204 * the working tree needs to go when P is checked out from the
2207 * (2) P does not exist in the index, but there is P/Q in the index.
2208 * We know P will stay a directory when we check out the contents
2209 * of the index, but we do not know yet if there is a directory
2210 * P/Q in the working tree to be killed, so we need to recurse.
2212 * (3) P does not exist in the index, and there is no P/Q in the index
2213 * to require P to be a directory, either. Only in this case, we
2214 * know that everything inside P will not be killed without
2217 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
2218 (dtype
== DT_DIR
) &&
2219 !has_path_in_index
&&
2220 (directory_exists_in_index(istate
, path
->buf
, path
->len
) == index_nonexistent
))
2223 excluded
= is_excluded(dir
, istate
, path
->buf
, &dtype
);
2226 * Excluded? If we don't explicitly want to show
2227 * ignored files, ignore it
2229 if (excluded
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
2230 return path_excluded
;
2237 * WARNING: Do not ignore/amend the return value from
2238 * treat_directory(), and especially do not change it to return
2239 * path_recurse as that can cause exponential slowdown.
2240 * Instead, modify treat_directory() to return the right value.
2242 strbuf_addch(path
, '/');
2243 return treat_directory(dir
, istate
, untracked
,
2244 path
->buf
, path
->len
,
2245 baselen
, excluded
, pathspec
);
2249 !match_pathspec(istate
, pathspec
, path
->buf
, path
->len
,
2250 0 /* prefix */, NULL
/* seen */,
2254 return path_excluded
;
2255 return path_untracked
;
2259 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
2263 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
2264 dir
->untracked_alloc
);
2265 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
2268 static int valid_cached_dir(struct dir_struct
*dir
,
2269 struct untracked_cache_dir
*untracked
,
2270 struct index_state
*istate
,
2271 struct strbuf
*path
,
2280 * With fsmonitor, we can trust the untracked cache's valid field.
2282 refresh_fsmonitor(istate
);
2283 if (!(dir
->untracked
->use_fsmonitor
&& untracked
->valid
)) {
2284 if (lstat(path
->len
? path
->buf
: ".", &st
)) {
2285 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
2288 if (!untracked
->valid
||
2289 match_stat_data_racy(istate
, &untracked
->stat_data
, &st
)) {
2290 fill_stat_data(&untracked
->stat_data
, &st
);
2295 if (untracked
->check_only
!= !!check_only
)
2299 * prep_exclude will be called eventually on this directory,
2300 * but it's called much later in last_matching_pattern(). We
2301 * need it now to determine the validity of the cache for this
2302 * path. The next calls will be nearly no-op, the way
2303 * prep_exclude() is designed.
2305 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
2306 strbuf_addch(path
, '/');
2307 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
2308 strbuf_setlen(path
, path
->len
- 1);
2310 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
2312 /* hopefully prep_exclude() haven't invalidated this entry... */
2313 return untracked
->valid
;
2316 static int open_cached_dir(struct cached_dir
*cdir
,
2317 struct dir_struct
*dir
,
2318 struct untracked_cache_dir
*untracked
,
2319 struct index_state
*istate
,
2320 struct strbuf
*path
,
2325 memset(cdir
, 0, sizeof(*cdir
));
2326 cdir
->untracked
= untracked
;
2327 if (valid_cached_dir(dir
, untracked
, istate
, path
, check_only
))
2329 c_path
= path
->len
? path
->buf
: ".";
2330 cdir
->fdir
= opendir(c_path
);
2332 warning_errno(_("could not open directory '%s'"), c_path
);
2333 if (dir
->untracked
) {
2334 invalidate_directory(dir
->untracked
, untracked
);
2335 dir
->untracked
->dir_opened
++;
2342 static int read_cached_dir(struct cached_dir
*cdir
)
2347 de
= readdir_skip_dot_and_dotdot(cdir
->fdir
);
2349 cdir
->d_name
= NULL
;
2350 cdir
->d_type
= DT_UNKNOWN
;
2353 cdir
->d_name
= de
->d_name
;
2354 cdir
->d_type
= DTYPE(de
);
2357 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
2358 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
2368 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
2369 struct untracked_cache_dir
*d
= cdir
->untracked
;
2370 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
2376 static void close_cached_dir(struct cached_dir
*cdir
)
2379 closedir(cdir
->fdir
);
2381 * We have gone through this directory and found no untracked
2382 * entries. Mark it valid.
2384 if (cdir
->untracked
) {
2385 cdir
->untracked
->valid
= 1;
2386 cdir
->untracked
->recurse
= 1;
2390 static void add_path_to_appropriate_result_list(struct dir_struct
*dir
,
2391 struct untracked_cache_dir
*untracked
,
2392 struct cached_dir
*cdir
,
2393 struct index_state
*istate
,
2394 struct strbuf
*path
,
2396 const struct pathspec
*pathspec
,
2397 enum path_treatment state
)
2399 /* add the path to the appropriate result list */
2402 if (dir
->flags
& DIR_SHOW_IGNORED
)
2403 dir_add_name(dir
, istate
, path
->buf
, path
->len
);
2404 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
2405 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
2406 exclude_matches_pathspec(path
->buf
, path
->len
,
2408 dir_add_ignored(dir
, istate
, path
->buf
, path
->len
);
2411 case path_untracked
:
2412 if (dir
->flags
& DIR_SHOW_IGNORED
)
2414 dir_add_name(dir
, istate
, path
->buf
, path
->len
);
2416 add_untracked(untracked
, path
->buf
+ baselen
);
2425 * Read a directory tree. We currently ignore anything but
2426 * directories, regular files and symlinks. That's because git
2427 * doesn't handle them at all yet. Maybe that will change some
2430 * Also, we ignore the name ".git" (even if it is not a directory).
2431 * That likely will not change.
2433 * If 'stop_at_first_file' is specified, 'path_excluded' is returned
2434 * to signal that a file was found. This is the least significant value that
2435 * indicates that a file was encountered that does not depend on the order of
2436 * whether an untracked or excluded path was encountered first.
2438 * Returns the most significant path_treatment value encountered in the scan.
2439 * If 'stop_at_first_file' is specified, `path_excluded` is the most
2440 * significant path_treatment value that will be returned.
2443 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
2444 struct index_state
*istate
, const char *base
, int baselen
,
2445 struct untracked_cache_dir
*untracked
, int check_only
,
2446 int stop_at_first_file
, const struct pathspec
*pathspec
)
2449 * WARNING: Do NOT recurse unless path_recurse is returned from
2450 * treat_path(). Recursing on any other return value
2451 * can result in exponential slowdown.
2453 struct cached_dir cdir
;
2454 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
2455 struct strbuf path
= STRBUF_INIT
;
2457 strbuf_add(&path
, base
, baselen
);
2459 if (open_cached_dir(&cdir
, dir
, untracked
, istate
, &path
, check_only
))
2461 dir
->visited_directories
++;
2464 untracked
->check_only
= !!check_only
;
2466 while (!read_cached_dir(&cdir
)) {
2467 /* check how the file or directory should be treated */
2468 state
= treat_path(dir
, untracked
, &cdir
, istate
, &path
,
2470 dir
->visited_paths
++;
2472 if (state
> dir_state
)
2475 /* recurse into subdir if instructed by treat_path */
2476 if (state
== path_recurse
) {
2477 struct untracked_cache_dir
*ud
;
2478 ud
= lookup_untracked(dir
->untracked
, untracked
,
2480 path
.len
- baselen
);
2482 read_directory_recursive(dir
, istate
, path
.buf
,
2484 check_only
, stop_at_first_file
, pathspec
);
2485 if (subdir_state
> dir_state
)
2486 dir_state
= subdir_state
;
2489 !match_pathspec(istate
, pathspec
, path
.buf
, path
.len
,
2490 0 /* prefix */, NULL
,
2491 0 /* do NOT special case dirs */))
2496 if (stop_at_first_file
) {
2498 * If stopping at first file, then
2499 * signal that a file was found by
2500 * returning `path_excluded`. This is
2501 * to return a consistent value
2502 * regardless of whether an ignored or
2503 * excluded file happened to be
2506 * In current usage, the
2507 * `stop_at_first_file` is passed when
2508 * an ancestor directory has matched
2509 * an exclude pattern, so any found
2510 * files will be excluded.
2512 if (dir_state
>= path_excluded
) {
2513 dir_state
= path_excluded
;
2518 /* abort early if maximum state has been reached */
2519 if (dir_state
== path_untracked
) {
2521 add_untracked(untracked
, path
.buf
+ baselen
);
2524 /* skip the add_path_to_appropriate_result_list() */
2528 add_path_to_appropriate_result_list(dir
, untracked
, &cdir
,
2529 istate
, &path
, baselen
,
2532 close_cached_dir(&cdir
);
2534 strbuf_release(&path
);
2539 int cmp_dir_entry(const void *p1
, const void *p2
)
2541 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
2542 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
2544 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
2547 /* check if *out lexically strictly contains *in */
2548 int check_dir_entry_contains(const struct dir_entry
*out
, const struct dir_entry
*in
)
2550 return (out
->len
< in
->len
) &&
2551 (out
->name
[out
->len
- 1] == '/') &&
2552 !memcmp(out
->name
, in
->name
, out
->len
);
2555 static int treat_leading_path(struct dir_struct
*dir
,
2556 struct index_state
*istate
,
2557 const char *path
, int len
,
2558 const struct pathspec
*pathspec
)
2560 struct strbuf sb
= STRBUF_INIT
;
2561 struct strbuf subdir
= STRBUF_INIT
;
2562 int prevlen
, baselen
;
2564 struct cached_dir cdir
;
2565 enum path_treatment state
= path_none
;
2568 * For each directory component of path, we are going to check whether
2569 * that path is relevant given the pathspec. For example, if path is
2571 * then we will ask treat_path() whether we should go into foo, then
2572 * whether we should go into bar, then whether baz is relevant.
2573 * Checking each is important because e.g. if path is
2575 * then we need to check .git to know we shouldn't traverse it.
2576 * If the return from treat_path() is:
2577 * * path_none, for any path, we return false.
2578 * * path_recurse, for all path components, we return true
2579 * * <anything else> for some intermediate component, we make sure
2580 * to add that path to the relevant list but return false
2581 * signifying that we shouldn't recurse into it.
2584 while (len
&& path
[len
- 1] == '/')
2589 memset(&cdir
, 0, sizeof(cdir
));
2590 cdir
.d_type
= DT_DIR
;
2594 prevlen
= baselen
+ !!baselen
;
2595 cp
= path
+ prevlen
;
2596 cp
= memchr(cp
, '/', path
+ len
- cp
);
2600 baselen
= cp
- path
;
2602 strbuf_add(&sb
, path
, baselen
);
2603 if (!is_directory(sb
.buf
))
2606 strbuf_add(&sb
, path
, prevlen
);
2607 strbuf_reset(&subdir
);
2608 strbuf_add(&subdir
, path
+prevlen
, baselen
-prevlen
);
2609 cdir
.d_name
= subdir
.buf
;
2610 state
= treat_path(dir
, NULL
, &cdir
, istate
, &sb
, prevlen
, pathspec
);
2612 if (state
!= path_recurse
)
2613 break; /* do not recurse into it */
2615 break; /* finished checking */
2617 add_path_to_appropriate_result_list(dir
, NULL
, &cdir
, istate
,
2618 &sb
, baselen
, pathspec
,
2621 strbuf_release(&subdir
);
2622 strbuf_release(&sb
);
2623 return state
== path_recurse
;
2626 static const char *get_ident_string(void)
2628 static struct strbuf sb
= STRBUF_INIT
;
2633 if (uname(&uts
) < 0)
2634 die_errno(_("failed to get kernel name and information"));
2635 strbuf_addf(&sb
, "Location %s, system %s", get_git_work_tree(),
2640 static int ident_in_untracked(const struct untracked_cache
*uc
)
2643 * Previous git versions may have saved many NUL separated
2644 * strings in the "ident" field, but it is insane to manage
2645 * many locations, so just take care of the first one.
2648 return !strcmp(uc
->ident
.buf
, get_ident_string());
2651 static void set_untracked_ident(struct untracked_cache
*uc
)
2653 strbuf_reset(&uc
->ident
);
2654 strbuf_addstr(&uc
->ident
, get_ident_string());
2657 * This strbuf used to contain a list of NUL separated
2658 * strings, so save NUL too for backward compatibility.
2660 strbuf_addch(&uc
->ident
, 0);
2663 static void new_untracked_cache(struct index_state
*istate
)
2665 struct untracked_cache
*uc
= xcalloc(1, sizeof(*uc
));
2666 strbuf_init(&uc
->ident
, 100);
2667 uc
->exclude_per_dir
= ".gitignore";
2668 /* should be the same flags used by git-status */
2669 uc
->dir_flags
= DIR_SHOW_OTHER_DIRECTORIES
| DIR_HIDE_EMPTY_DIRECTORIES
;
2670 set_untracked_ident(uc
);
2671 istate
->untracked
= uc
;
2672 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2675 void add_untracked_cache(struct index_state
*istate
)
2677 if (!istate
->untracked
) {
2678 new_untracked_cache(istate
);
2680 if (!ident_in_untracked(istate
->untracked
)) {
2681 free_untracked_cache(istate
->untracked
);
2682 new_untracked_cache(istate
);
2687 void remove_untracked_cache(struct index_state
*istate
)
2689 if (istate
->untracked
) {
2690 free_untracked_cache(istate
->untracked
);
2691 istate
->untracked
= NULL
;
2692 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2696 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
2698 const struct pathspec
*pathspec
)
2700 struct untracked_cache_dir
*root
;
2701 static int untracked_cache_disabled
= -1;
2703 if (!dir
->untracked
)
2705 if (untracked_cache_disabled
< 0)
2706 untracked_cache_disabled
= git_env_bool("GIT_DISABLE_UNTRACKED_CACHE", 0);
2707 if (untracked_cache_disabled
)
2711 * We only support $GIT_DIR/info/exclude and core.excludesfile
2712 * as the global ignore rule files. Any other additions
2713 * (e.g. from command line) invalidate the cache. This
2714 * condition also catches running setup_standard_excludes()
2715 * before setting dir->untracked!
2717 if (dir
->unmanaged_exclude_files
)
2721 * Optimize for the main use case only: whole-tree git
2722 * status. More work involved in treat_leading_path() if we
2723 * use cache on just a subset of the worktree. pathspec
2724 * support could make the matter even worse.
2726 if (base_len
|| (pathspec
&& pathspec
->nr
))
2729 /* Different set of flags may produce different results */
2730 if (dir
->flags
!= dir
->untracked
->dir_flags
||
2732 * See treat_directory(), case index_nonexistent. Without
2733 * this flag, we may need to also cache .git file content
2734 * for the resolve_gitlink_ref() call, which we don't.
2736 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
2737 /* We don't support collecting ignore files */
2738 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
2739 DIR_COLLECT_IGNORED
)))
2743 * If we use .gitignore in the cache and now you change it to
2744 * .gitexclude, everything will go wrong.
2746 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
2747 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
2751 * EXC_CMDL is not considered in the cache. If people set it,
2754 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
2757 if (!ident_in_untracked(dir
->untracked
)) {
2758 warning(_("untracked cache is disabled on this system or location"));
2762 if (!dir
->untracked
->root
)
2763 FLEX_ALLOC_STR(dir
->untracked
->root
, name
, "");
2765 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2766 root
= dir
->untracked
->root
;
2767 if (!oideq(&dir
->ss_info_exclude
.oid
,
2768 &dir
->untracked
->ss_info_exclude
.oid
)) {
2769 invalidate_gitignore(dir
->untracked
, root
);
2770 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2772 if (!oideq(&dir
->ss_excludes_file
.oid
,
2773 &dir
->untracked
->ss_excludes_file
.oid
)) {
2774 invalidate_gitignore(dir
->untracked
, root
);
2775 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2778 /* Make sure this directory is not dropped out at saving phase */
2783 static void emit_traversal_statistics(struct dir_struct
*dir
,
2784 struct repository
*repo
,
2788 if (!trace2_is_enabled())
2792 trace2_data_string("read_directory", repo
, "path", "");
2794 struct strbuf tmp
= STRBUF_INIT
;
2795 strbuf_add(&tmp
, path
, path_len
);
2796 trace2_data_string("read_directory", repo
, "path", tmp
.buf
);
2797 strbuf_release(&tmp
);
2800 trace2_data_intmax("read_directory", repo
,
2801 "directories-visited", dir
->visited_directories
);
2802 trace2_data_intmax("read_directory", repo
,
2803 "paths-visited", dir
->visited_paths
);
2805 if (!dir
->untracked
)
2807 trace2_data_intmax("read_directory", repo
,
2808 "node-creation", dir
->untracked
->dir_created
);
2809 trace2_data_intmax("read_directory", repo
,
2810 "gitignore-invalidation",
2811 dir
->untracked
->gitignore_invalidated
);
2812 trace2_data_intmax("read_directory", repo
,
2813 "directory-invalidation",
2814 dir
->untracked
->dir_invalidated
);
2815 trace2_data_intmax("read_directory", repo
,
2816 "opendir", dir
->untracked
->dir_opened
);
2819 int read_directory(struct dir_struct
*dir
, struct index_state
*istate
,
2820 const char *path
, int len
, const struct pathspec
*pathspec
)
2822 struct untracked_cache_dir
*untracked
;
2824 trace2_region_enter("dir", "read_directory", istate
->repo
);
2825 dir
->visited_paths
= 0;
2826 dir
->visited_directories
= 0;
2828 if (has_symlink_leading_path(path
, len
)) {
2829 trace2_region_leave("dir", "read_directory", istate
->repo
);
2833 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2836 * make sure untracked cache code path is disabled,
2837 * e.g. prep_exclude()
2839 dir
->untracked
= NULL
;
2840 if (!len
|| treat_leading_path(dir
, istate
, path
, len
, pathspec
))
2841 read_directory_recursive(dir
, istate
, path
, len
, untracked
, 0, 0, pathspec
);
2842 QSORT(dir
->entries
, dir
->nr
, cmp_dir_entry
);
2843 QSORT(dir
->ignored
, dir
->ignored_nr
, cmp_dir_entry
);
2845 emit_traversal_statistics(dir
, istate
->repo
, path
, len
);
2847 trace2_region_leave("dir", "read_directory", istate
->repo
);
2848 if (dir
->untracked
) {
2849 static int force_untracked_cache
= -1;
2851 if (force_untracked_cache
< 0)
2852 force_untracked_cache
=
2853 git_env_bool("GIT_FORCE_UNTRACKED_CACHE", 0);
2854 if (force_untracked_cache
&&
2855 dir
->untracked
== istate
->untracked
&&
2856 (dir
->untracked
->dir_opened
||
2857 dir
->untracked
->gitignore_invalidated
||
2858 dir
->untracked
->dir_invalidated
))
2859 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2860 if (dir
->untracked
!= istate
->untracked
) {
2861 FREE_AND_NULL(dir
->untracked
);
2868 int file_exists(const char *f
)
2871 return lstat(f
, &sb
) == 0;
2874 int repo_file_exists(struct repository
*repo
, const char *path
)
2876 if (repo
!= the_repository
)
2877 BUG("do not know how to check file existence in arbitrary repo");
2879 return file_exists(path
);
2882 static int cmp_icase(char a
, char b
)
2887 return toupper(a
) - toupper(b
);
2892 * Given two normalized paths (a trailing slash is ok), if subdir is
2893 * outside dir, return -1. Otherwise return the offset in subdir that
2894 * can be used as relative path to dir.
2896 int dir_inside_of(const char *subdir
, const char *dir
)
2900 assert(dir
&& subdir
&& *dir
&& *subdir
);
2902 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2908 /* hel[p]/me vs hel[l]/yeah */
2909 if (*dir
&& *subdir
)
2913 return !*dir
? offset
: -1; /* same dir */
2915 /* foo/[b]ar vs foo/[] */
2916 if (is_dir_sep(dir
[-1]))
2917 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2919 /* foo[/]bar vs foo[] */
2920 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2923 int is_inside_dir(const char *dir
)
2932 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2937 int is_empty_dir(const char *path
)
2939 DIR *dir
= opendir(path
);
2946 e
= readdir_skip_dot_and_dotdot(dir
);
2954 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2958 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2959 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2960 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2961 struct object_id submodule_head
;
2963 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2964 !resolve_gitlink_ref(path
->buf
, "HEAD", &submodule_head
)) {
2965 /* Do not descend and nuke a nested git work tree. */
2971 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2972 dir
= opendir(path
->buf
);
2974 if (errno
== ENOENT
)
2975 return keep_toplevel
? -1 : 0;
2976 else if (errno
== EACCES
&& !keep_toplevel
)
2978 * An empty dir could be removable even if it
2981 return rmdir(path
->buf
);
2985 strbuf_complete(path
, '/');
2988 while ((e
= readdir_skip_dot_and_dotdot(dir
)) != NULL
) {
2991 strbuf_setlen(path
, len
);
2992 strbuf_addstr(path
, e
->d_name
);
2993 if (lstat(path
->buf
, &st
)) {
2994 if (errno
== ENOENT
)
2996 * file disappeared, which is what we
3001 } else if (S_ISDIR(st
.st_mode
)) {
3002 if (!remove_dir_recurse(path
, flag
, &kept_down
))
3003 continue; /* happy */
3004 } else if (!only_empty
&&
3005 (!unlink(path
->buf
) || errno
== ENOENT
)) {
3006 continue; /* happy, too */
3009 /* path too long, stat fails, or non-directory still exists */
3015 strbuf_setlen(path
, original_len
);
3016 if (!ret
&& !keep_toplevel
&& !kept_down
)
3017 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
3020 * report the uplevel that it is not an error that we
3021 * did not rmdir() our directory.
3027 int remove_dir_recursively(struct strbuf
*path
, int flag
)
3029 return remove_dir_recurse(path
, flag
, NULL
);
3032 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
3034 void setup_standard_excludes(struct dir_struct
*dir
)
3036 dir
->exclude_per_dir
= ".gitignore";
3038 /* core.excludesfile defaulting to $XDG_CONFIG_HOME/git/ignore */
3040 excludes_file
= xdg_config_home("ignore");
3041 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
3042 add_patterns_from_file_1(dir
, excludes_file
,
3043 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
3045 /* per repository user preference */
3046 if (startup_info
->have_repository
) {
3047 const char *path
= git_path_info_exclude();
3048 if (!access_or_warn(path
, R_OK
, 0))
3049 add_patterns_from_file_1(dir
, path
,
3050 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
3054 char *get_sparse_checkout_filename(void)
3056 return git_pathdup("info/sparse-checkout");
3059 int get_sparse_checkout_patterns(struct pattern_list
*pl
)
3062 char *sparse_filename
= get_sparse_checkout_filename();
3064 pl
->use_cone_patterns
= core_sparse_checkout_cone
;
3065 res
= add_patterns_from_file_to_list(sparse_filename
, "", 0, pl
, NULL
);
3067 free(sparse_filename
);
3071 int remove_path(const char *name
)
3075 if (unlink(name
) && !is_missing_file_error(errno
))
3078 slash
= strrchr(name
, '/');
3080 char *dirs
= xstrdup(name
);
3081 slash
= dirs
+ (slash
- name
);
3084 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
3091 * Frees memory within dir which was allocated, and resets fields for further
3092 * use. Does not free dir itself.
3094 void dir_clear(struct dir_struct
*dir
)
3097 struct exclude_list_group
*group
;
3098 struct pattern_list
*pl
;
3099 struct exclude_stack
*stk
;
3101 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
3102 group
= &dir
->exclude_list_group
[i
];
3103 for (j
= 0; j
< group
->nr
; j
++) {
3106 free((char *)pl
->src
);
3107 clear_pattern_list(pl
);
3112 for (i
= 0; i
< dir
->ignored_nr
; i
++)
3113 free(dir
->ignored
[i
]);
3114 for (i
= 0; i
< dir
->nr
; i
++)
3115 free(dir
->entries
[i
]);
3119 stk
= dir
->exclude_stack
;
3121 struct exclude_stack
*prev
= stk
->prev
;
3125 strbuf_release(&dir
->basebuf
);
3130 struct ondisk_untracked_cache
{
3131 struct stat_data info_exclude_stat
;
3132 struct stat_data excludes_file_stat
;
3136 #define ouc_offset(x) offsetof(struct ondisk_untracked_cache, x)
3139 int index
; /* number of written untracked_cache_dir */
3140 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
3141 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
3142 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
3144 struct strbuf sb_stat
;
3145 struct strbuf sb_sha1
;
3148 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
3150 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
3151 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
3152 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
3153 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
3154 to
->sd_dev
= htonl(from
->sd_dev
);
3155 to
->sd_ino
= htonl(from
->sd_ino
);
3156 to
->sd_uid
= htonl(from
->sd_uid
);
3157 to
->sd_gid
= htonl(from
->sd_gid
);
3158 to
->sd_size
= htonl(from
->sd_size
);
3161 static void write_one_dir(struct untracked_cache_dir
*untracked
,
3162 struct write_data
*wd
)
3164 struct stat_data stat_data
;
3165 struct strbuf
*out
= &wd
->out
;
3166 unsigned char intbuf
[16];
3167 unsigned int intlen
, value
;
3168 int i
= wd
->index
++;
3171 * untracked_nr should be reset whenever valid is clear, but
3174 if (!untracked
->valid
) {
3175 untracked
->untracked_nr
= 0;
3176 untracked
->check_only
= 0;
3179 if (untracked
->check_only
)
3180 ewah_set(wd
->check_only
, i
);
3181 if (untracked
->valid
) {
3182 ewah_set(wd
->valid
, i
);
3183 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
3184 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
3186 if (!is_null_oid(&untracked
->exclude_oid
)) {
3187 ewah_set(wd
->sha1_valid
, i
);
3188 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_oid
.hash
,
3189 the_hash_algo
->rawsz
);
3192 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
3193 strbuf_add(out
, intbuf
, intlen
);
3195 /* skip non-recurse directories */
3196 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
3197 if (untracked
->dirs
[i
]->recurse
)
3199 intlen
= encode_varint(value
, intbuf
);
3200 strbuf_add(out
, intbuf
, intlen
);
3202 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
3204 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
3205 strbuf_add(out
, untracked
->untracked
[i
],
3206 strlen(untracked
->untracked
[i
]) + 1);
3208 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
3209 if (untracked
->dirs
[i
]->recurse
)
3210 write_one_dir(untracked
->dirs
[i
], wd
);
3213 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
3215 struct ondisk_untracked_cache
*ouc
;
3216 struct write_data wd
;
3217 unsigned char varbuf
[16];
3219 const unsigned hashsz
= the_hash_algo
->rawsz
;
3221 CALLOC_ARRAY(ouc
, 1);
3222 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
3223 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
3224 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
3226 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
3227 strbuf_add(out
, varbuf
, varint_len
);
3228 strbuf_addbuf(out
, &untracked
->ident
);
3230 strbuf_add(out
, ouc
, sizeof(*ouc
));
3231 strbuf_add(out
, untracked
->ss_info_exclude
.oid
.hash
, hashsz
);
3232 strbuf_add(out
, untracked
->ss_excludes_file
.oid
.hash
, hashsz
);
3233 strbuf_add(out
, untracked
->exclude_per_dir
, strlen(untracked
->exclude_per_dir
) + 1);
3236 if (!untracked
->root
) {
3237 varint_len
= encode_varint(0, varbuf
);
3238 strbuf_add(out
, varbuf
, varint_len
);
3243 wd
.check_only
= ewah_new();
3244 wd
.valid
= ewah_new();
3245 wd
.sha1_valid
= ewah_new();
3246 strbuf_init(&wd
.out
, 1024);
3247 strbuf_init(&wd
.sb_stat
, 1024);
3248 strbuf_init(&wd
.sb_sha1
, 1024);
3249 write_one_dir(untracked
->root
, &wd
);
3251 varint_len
= encode_varint(wd
.index
, varbuf
);
3252 strbuf_add(out
, varbuf
, varint_len
);
3253 strbuf_addbuf(out
, &wd
.out
);
3254 ewah_serialize_strbuf(wd
.valid
, out
);
3255 ewah_serialize_strbuf(wd
.check_only
, out
);
3256 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
3257 strbuf_addbuf(out
, &wd
.sb_stat
);
3258 strbuf_addbuf(out
, &wd
.sb_sha1
);
3259 strbuf_addch(out
, '\0'); /* safe guard for string lists */
3261 ewah_free(wd
.valid
);
3262 ewah_free(wd
.check_only
);
3263 ewah_free(wd
.sha1_valid
);
3264 strbuf_release(&wd
.out
);
3265 strbuf_release(&wd
.sb_stat
);
3266 strbuf_release(&wd
.sb_sha1
);
3269 static void free_untracked(struct untracked_cache_dir
*ucd
)
3274 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
3275 free_untracked(ucd
->dirs
[i
]);
3276 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
3277 free(ucd
->untracked
[i
]);
3278 free(ucd
->untracked
);
3283 void free_untracked_cache(struct untracked_cache
*uc
)
3286 free_untracked(uc
->root
);
3292 struct untracked_cache_dir
**ucd
;
3293 struct ewah_bitmap
*check_only
;
3294 struct ewah_bitmap
*valid
;
3295 struct ewah_bitmap
*sha1_valid
;
3296 const unsigned char *data
;
3297 const unsigned char *end
;
3300 static void stat_data_from_disk(struct stat_data
*to
, const unsigned char *data
)
3302 memcpy(to
, data
, sizeof(*to
));
3303 to
->sd_ctime
.sec
= ntohl(to
->sd_ctime
.sec
);
3304 to
->sd_ctime
.nsec
= ntohl(to
->sd_ctime
.nsec
);
3305 to
->sd_mtime
.sec
= ntohl(to
->sd_mtime
.sec
);
3306 to
->sd_mtime
.nsec
= ntohl(to
->sd_mtime
.nsec
);
3307 to
->sd_dev
= ntohl(to
->sd_dev
);
3308 to
->sd_ino
= ntohl(to
->sd_ino
);
3309 to
->sd_uid
= ntohl(to
->sd_uid
);
3310 to
->sd_gid
= ntohl(to
->sd_gid
);
3311 to
->sd_size
= ntohl(to
->sd_size
);
3314 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
3315 struct read_data
*rd
)
3317 struct untracked_cache_dir ud
, *untracked
;
3318 const unsigned char *data
= rd
->data
, *end
= rd
->end
;
3319 const unsigned char *eos
;
3323 memset(&ud
, 0, sizeof(ud
));
3325 value
= decode_varint(&data
);
3329 ud
.untracked_alloc
= value
;
3330 ud
.untracked_nr
= value
;
3331 if (ud
.untracked_nr
)
3332 ALLOC_ARRAY(ud
.untracked
, ud
.untracked_nr
);
3334 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&data
);
3337 ALLOC_ARRAY(ud
.dirs
, ud
.dirs_nr
);
3339 eos
= memchr(data
, '\0', end
- data
);
3340 if (!eos
|| eos
== end
)
3343 *untracked_
= untracked
= xmalloc(st_add3(sizeof(*untracked
), eos
- data
, 1));
3344 memcpy(untracked
, &ud
, sizeof(ud
));
3345 memcpy(untracked
->name
, data
, eos
- data
+ 1);
3348 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
3349 eos
= memchr(data
, '\0', end
- data
);
3350 if (!eos
|| eos
== end
)
3352 untracked
->untracked
[i
] = xmemdupz(data
, eos
- data
);
3356 rd
->ucd
[rd
->index
++] = untracked
;
3359 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
3360 if (read_one_dir(untracked
->dirs
+ i
, rd
) < 0)
3366 static void set_check_only(size_t pos
, void *cb
)
3368 struct read_data
*rd
= cb
;
3369 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
3373 static void read_stat(size_t pos
, void *cb
)
3375 struct read_data
*rd
= cb
;
3376 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
3377 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
3378 rd
->data
= rd
->end
+ 1;
3381 stat_data_from_disk(&ud
->stat_data
, rd
->data
);
3382 rd
->data
+= sizeof(struct stat_data
);
3386 static void read_oid(size_t pos
, void *cb
)
3388 struct read_data
*rd
= cb
;
3389 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
3390 if (rd
->data
+ the_hash_algo
->rawsz
> rd
->end
) {
3391 rd
->data
= rd
->end
+ 1;
3394 hashcpy(ud
->exclude_oid
.hash
, rd
->data
);
3395 rd
->data
+= the_hash_algo
->rawsz
;
3398 static void load_oid_stat(struct oid_stat
*oid_stat
, const unsigned char *data
,
3399 const unsigned char *sha1
)
3401 stat_data_from_disk(&oid_stat
->stat
, data
);
3402 hashcpy(oid_stat
->oid
.hash
, sha1
);
3403 oid_stat
->valid
= 1;
3406 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
3408 struct untracked_cache
*uc
;
3409 struct read_data rd
;
3410 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
3414 const char *exclude_per_dir
;
3415 const unsigned hashsz
= the_hash_algo
->rawsz
;
3416 const unsigned offset
= sizeof(struct ondisk_untracked_cache
);
3417 const unsigned exclude_per_dir_offset
= offset
+ 2 * hashsz
;
3419 if (sz
<= 1 || end
[-1] != '\0')
3423 ident_len
= decode_varint(&next
);
3424 if (next
+ ident_len
> end
)
3426 ident
= (const char *)next
;
3429 if (next
+ exclude_per_dir_offset
+ 1 > end
)
3432 CALLOC_ARRAY(uc
, 1);
3433 strbuf_init(&uc
->ident
, ident_len
);
3434 strbuf_add(&uc
->ident
, ident
, ident_len
);
3435 load_oid_stat(&uc
->ss_info_exclude
,
3436 next
+ ouc_offset(info_exclude_stat
),
3438 load_oid_stat(&uc
->ss_excludes_file
,
3439 next
+ ouc_offset(excludes_file_stat
),
3440 next
+ offset
+ hashsz
);
3441 uc
->dir_flags
= get_be32(next
+ ouc_offset(dir_flags
));
3442 exclude_per_dir
= (const char *)next
+ exclude_per_dir_offset
;
3443 uc
->exclude_per_dir
= xstrdup(exclude_per_dir
);
3444 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
3445 next
+= exclude_per_dir_offset
+ strlen(exclude_per_dir
) + 1;
3449 len
= decode_varint(&next
);
3450 if (next
> end
|| len
== 0)
3453 rd
.valid
= ewah_new();
3454 rd
.check_only
= ewah_new();
3455 rd
.sha1_valid
= ewah_new();
3459 ALLOC_ARRAY(rd
.ucd
, len
);
3461 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
3465 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
3470 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
3475 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
3479 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
3480 rd
.data
= next
+ len
;
3481 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
3482 ewah_each_bit(rd
.sha1_valid
, read_oid
, &rd
);
3487 ewah_free(rd
.valid
);
3488 ewah_free(rd
.check_only
);
3489 ewah_free(rd
.sha1_valid
);
3492 free_untracked_cache(uc
);
3498 static void invalidate_one_directory(struct untracked_cache
*uc
,
3499 struct untracked_cache_dir
*ucd
)
3501 uc
->dir_invalidated
++;
3503 ucd
->untracked_nr
= 0;
3507 * Normally when an entry is added or removed from a directory,
3508 * invalidating that directory is enough. No need to touch its
3509 * ancestors. When a directory is shown as "foo/bar/" in git-status
3510 * however, deleting or adding an entry may have cascading effect.
3512 * Say the "foo/bar/file" has become untracked, we need to tell the
3513 * untracked_cache_dir of "foo" that "bar/" is not an untracked
3514 * directory any more (because "bar" is managed by foo as an untracked
3517 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
3518 * was the last untracked entry in the entire "foo", we should show
3519 * "foo/" instead. Which means we have to invalidate past "bar" up to
3522 * This function traverses all directories from root to leaf. If there
3523 * is a chance of one of the above cases happening, we invalidate back
3524 * to root. Otherwise we just invalidate the leaf. There may be a more
3525 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
3526 * detect these cases and avoid unnecessary invalidation, for example,
3527 * checking for the untracked entry named "bar/" in "foo", but for now
3528 * stick to something safe and simple.
3530 static int invalidate_one_component(struct untracked_cache
*uc
,
3531 struct untracked_cache_dir
*dir
,
3532 const char *path
, int len
)
3534 const char *rest
= strchr(path
, '/');
3537 int component_len
= rest
- path
;
3538 struct untracked_cache_dir
*d
=
3539 lookup_untracked(uc
, dir
, path
, component_len
);
3541 invalidate_one_component(uc
, d
, rest
+ 1,
3542 len
- (component_len
+ 1));
3544 invalidate_one_directory(uc
, dir
);
3548 invalidate_one_directory(uc
, dir
);
3549 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
3552 void untracked_cache_invalidate_path(struct index_state
*istate
,
3553 const char *path
, int safe_path
)
3555 if (!istate
->untracked
|| !istate
->untracked
->root
)
3557 if (!safe_path
&& !verify_path(path
, 0))
3559 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
3560 path
, strlen(path
));
3563 void untracked_cache_remove_from_index(struct index_state
*istate
,
3566 untracked_cache_invalidate_path(istate
, path
, 1);
3569 void untracked_cache_add_to_index(struct index_state
*istate
,
3572 untracked_cache_invalidate_path(istate
, path
, 1);
3575 static void connect_wt_gitdir_in_nested(const char *sub_worktree
,
3576 const char *sub_gitdir
)
3579 struct repository subrepo
;
3580 struct strbuf sub_wt
= STRBUF_INIT
;
3581 struct strbuf sub_gd
= STRBUF_INIT
;
3583 const struct submodule
*sub
;
3585 /* If the submodule has no working tree, we can ignore it. */
3586 if (repo_init(&subrepo
, sub_gitdir
, sub_worktree
))
3589 if (repo_read_index(&subrepo
) < 0)
3590 die(_("index file corrupt in repo %s"), subrepo
.gitdir
);
3592 for (i
= 0; i
< subrepo
.index
->cache_nr
; i
++) {
3593 const struct cache_entry
*ce
= subrepo
.index
->cache
[i
];
3595 if (!S_ISGITLINK(ce
->ce_mode
))
3598 while (i
+ 1 < subrepo
.index
->cache_nr
&&
3599 !strcmp(ce
->name
, subrepo
.index
->cache
[i
+ 1]->name
))
3601 * Skip entries with the same name in different stages
3602 * to make sure an entry is returned only once.
3606 sub
= submodule_from_path(&subrepo
, &null_oid
, ce
->name
);
3607 if (!sub
|| !is_submodule_active(&subrepo
, ce
->name
))
3608 /* .gitmodules broken or inactive sub */
3611 strbuf_reset(&sub_wt
);
3612 strbuf_reset(&sub_gd
);
3613 strbuf_addf(&sub_wt
, "%s/%s", sub_worktree
, sub
->path
);
3614 strbuf_addf(&sub_gd
, "%s/modules/%s", sub_gitdir
, sub
->name
);
3616 connect_work_tree_and_git_dir(sub_wt
.buf
, sub_gd
.buf
, 1);
3618 strbuf_release(&sub_wt
);
3619 strbuf_release(&sub_gd
);
3620 repo_clear(&subrepo
);
3623 void connect_work_tree_and_git_dir(const char *work_tree_
,
3624 const char *git_dir_
,
3625 int recurse_into_nested
)
3627 struct strbuf gitfile_sb
= STRBUF_INIT
;
3628 struct strbuf cfg_sb
= STRBUF_INIT
;
3629 struct strbuf rel_path
= STRBUF_INIT
;
3630 char *git_dir
, *work_tree
;
3632 /* Prepare .git file */
3633 strbuf_addf(&gitfile_sb
, "%s/.git", work_tree_
);
3634 if (safe_create_leading_directories_const(gitfile_sb
.buf
))
3635 die(_("could not create directories for %s"), gitfile_sb
.buf
);
3637 /* Prepare config file */
3638 strbuf_addf(&cfg_sb
, "%s/config", git_dir_
);
3639 if (safe_create_leading_directories_const(cfg_sb
.buf
))
3640 die(_("could not create directories for %s"), cfg_sb
.buf
);
3642 git_dir
= real_pathdup(git_dir_
, 1);
3643 work_tree
= real_pathdup(work_tree_
, 1);
3645 /* Write .git file */
3646 write_file(gitfile_sb
.buf
, "gitdir: %s",
3647 relative_path(git_dir
, work_tree
, &rel_path
));
3648 /* Update core.worktree setting */
3649 git_config_set_in_file(cfg_sb
.buf
, "core.worktree",
3650 relative_path(work_tree
, git_dir
, &rel_path
));
3652 strbuf_release(&gitfile_sb
);
3653 strbuf_release(&cfg_sb
);
3654 strbuf_release(&rel_path
);
3656 if (recurse_into_nested
)
3657 connect_wt_gitdir_in_nested(work_tree
, git_dir
);
3664 * Migrate the git directory of the given path from old_git_dir to new_git_dir.
3666 void relocate_gitdir(const char *path
, const char *old_git_dir
, const char *new_git_dir
)
3668 if (rename(old_git_dir
, new_git_dir
) < 0)
3669 die_errno(_("could not migrate git directory from '%s' to '%s'"),
3670 old_git_dir
, new_git_dir
);
3672 connect_work_tree_and_git_dir(path
, new_git_dir
, 0);