2 * This handles recursive filename detection with exclude
3 * files, index knowledge etc..
5 * See Documentation/technical/api-directory-listing.txt
7 * Copyright (C) Linus Torvalds, 2005-2006
8 * Junio Hamano, 2005-2006
10 #define NO_THE_INDEX_COMPATIBILITY_MACROS
15 #include "wildmatch.h"
19 #include "ewah/ewok.h"
22 * Tells read_directory_recursive how a file or directory should be treated.
23 * Values are ordered by significance, e.g. if a directory contains both
24 * excluded and untracked files, it is listed as untracked because
25 * path_untracked > path_excluded.
35 * Support data structure for our opendir/readdir/closedir wrappers
39 struct untracked_cache_dir
*untracked
;
45 struct untracked_cache_dir
*ucd
;
48 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
49 const char *path
, int len
, struct untracked_cache_dir
*untracked
,
50 int check_only
, const struct pathspec
*pathspec
);
51 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
52 const char *path
, int len
);
54 int fspathcmp(const char *a
, const char *b
)
56 return ignore_case
? strcasecmp(a
, b
) : strcmp(a
, b
);
59 int fspathncmp(const char *a
, const char *b
, size_t count
)
61 return ignore_case
? strncasecmp(a
, b
, count
) : strncmp(a
, b
, count
);
64 int git_fnmatch(const struct pathspec_item
*item
,
65 const char *pattern
, const char *string
,
69 if (ps_strncmp(item
, pattern
, string
, prefix
))
74 if (item
->flags
& PATHSPEC_ONESTAR
) {
75 int pattern_len
= strlen(++pattern
);
76 int string_len
= strlen(string
);
77 return string_len
< pattern_len
||
78 ps_strcmp(item
, pattern
,
79 string
+ string_len
- pattern_len
);
81 if (item
->magic
& PATHSPEC_GLOB
)
82 return wildmatch(pattern
, string
,
84 (item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0),
87 /* wildmatch has not learned no FNM_PATHNAME mode yet */
88 return wildmatch(pattern
, string
,
89 item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0,
93 static int fnmatch_icase_mem(const char *pattern
, int patternlen
,
94 const char *string
, int stringlen
,
98 struct strbuf pat_buf
= STRBUF_INIT
;
99 struct strbuf str_buf
= STRBUF_INIT
;
100 const char *use_pat
= pattern
;
101 const char *use_str
= string
;
103 if (pattern
[patternlen
]) {
104 strbuf_add(&pat_buf
, pattern
, patternlen
);
105 use_pat
= pat_buf
.buf
;
107 if (string
[stringlen
]) {
108 strbuf_add(&str_buf
, string
, stringlen
);
109 use_str
= str_buf
.buf
;
113 flags
|= WM_CASEFOLD
;
114 match_status
= wildmatch(use_pat
, use_str
, flags
, NULL
);
116 strbuf_release(&pat_buf
);
117 strbuf_release(&str_buf
);
122 static size_t common_prefix_len(const struct pathspec
*pathspec
)
128 * ":(icase)path" is treated as a pathspec full of
129 * wildcard. In other words, only prefix is considered common
130 * prefix. If the pathspec is abc/foo abc/bar, running in
131 * subdir xyz, the common prefix is still xyz, not xuz/abc as
134 GUARD_PATHSPEC(pathspec
,
143 for (n
= 0; n
< pathspec
->nr
; n
++) {
144 size_t i
= 0, len
= 0, item_len
;
145 if (pathspec
->items
[n
].magic
& PATHSPEC_EXCLUDE
)
147 if (pathspec
->items
[n
].magic
& PATHSPEC_ICASE
)
148 item_len
= pathspec
->items
[n
].prefix
;
150 item_len
= pathspec
->items
[n
].nowildcard_len
;
151 while (i
< item_len
&& (n
== 0 || i
< max
)) {
152 char c
= pathspec
->items
[n
].match
[i
];
153 if (c
!= pathspec
->items
[0].match
[i
])
159 if (n
== 0 || len
< max
) {
169 * Returns a copy of the longest leading path common among all
172 char *common_prefix(const struct pathspec
*pathspec
)
174 unsigned long len
= common_prefix_len(pathspec
);
176 return len
? xmemdupz(pathspec
->items
[0].match
, len
) : NULL
;
179 int fill_directory(struct dir_struct
*dir
, const struct pathspec
*pathspec
)
185 * Calculate common prefix for the pathspec, and
186 * use that to optimize the directory walk
188 prefix_len
= common_prefix_len(pathspec
);
189 prefix
= prefix_len
? pathspec
->items
[0].match
: "";
191 /* Read the directory and prune it */
192 read_directory(dir
, prefix
, prefix_len
, pathspec
);
197 int within_depth(const char *name
, int namelen
,
198 int depth
, int max_depth
)
200 const char *cp
= name
, *cpe
= name
+ namelen
;
206 if (depth
> max_depth
)
212 #define DO_MATCH_EXCLUDE (1<<0)
213 #define DO_MATCH_DIRECTORY (1<<1)
214 #define DO_MATCH_SUBMODULE (1<<2)
216 static int match_attrs(const char *name
, int namelen
,
217 const struct pathspec_item
*item
)
221 git_check_attr(name
, item
->attr_check
);
222 for (i
= 0; i
< item
->attr_match_nr
; i
++) {
225 enum attr_match_mode match_mode
;
227 value
= item
->attr_check
->items
[i
].value
;
228 match_mode
= item
->attr_match
[i
].match_mode
;
230 if (ATTR_TRUE(value
))
231 matched
= (match_mode
== MATCH_SET
);
232 else if (ATTR_FALSE(value
))
233 matched
= (match_mode
== MATCH_UNSET
);
234 else if (ATTR_UNSET(value
))
235 matched
= (match_mode
== MATCH_UNSPECIFIED
);
237 matched
= (match_mode
== MATCH_VALUE
&&
238 !strcmp(item
->attr_match
[i
].value
, value
));
247 * Does 'match' match the given name?
248 * A match is found if
250 * (1) the 'match' string is leading directory of 'name', or
251 * (2) the 'match' string is a wildcard and matches 'name', or
252 * (3) the 'match' string is exactly the same as 'name'.
254 * and the return value tells which case it was.
256 * It returns 0 when there is no match.
258 static int match_pathspec_item(const struct pathspec_item
*item
, int prefix
,
259 const char *name
, int namelen
, unsigned flags
)
261 /* name/namelen has prefix cut off by caller */
262 const char *match
= item
->match
+ prefix
;
263 int matchlen
= item
->len
- prefix
;
266 * The normal call pattern is:
267 * 1. prefix = common_prefix_len(ps);
268 * 2. prune something, or fill_directory
269 * 3. match_pathspec()
271 * 'prefix' at #1 may be shorter than the command's prefix and
272 * it's ok for #2 to match extra files. Those extras will be
275 * Suppose the pathspec is 'foo' and '../bar' running from
276 * subdir 'xyz'. The common prefix at #1 will be empty, thanks
277 * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The
278 * user does not want XYZ/foo, only the "foo" part should be
279 * case-insensitive. We need to filter out XYZ/foo here. In
280 * other words, we do not trust the caller on comparing the
281 * prefix part when :(icase) is involved. We do exact
282 * comparison ourselves.
284 * Normally the caller (common_prefix_len() in fact) does
285 * _exact_ matching on name[-prefix+1..-1] and we do not need
286 * to check that part. Be defensive and check it anyway, in
287 * case common_prefix_len is changed, or a new caller is
288 * introduced that does not use common_prefix_len.
290 * If the penalty turns out too high when prefix is really
291 * long, maybe change it to
292 * strncmp(match, name, item->prefix - prefix)
294 if (item
->prefix
&& (item
->magic
& PATHSPEC_ICASE
) &&
295 strncmp(item
->match
, name
- prefix
, item
->prefix
))
298 if (item
->attr_match_nr
&& !match_attrs(name
, namelen
, item
))
301 /* If the match was just the prefix, we matched */
303 return MATCHED_RECURSIVELY
;
305 if (matchlen
<= namelen
&& !ps_strncmp(item
, match
, name
, matchlen
)) {
306 if (matchlen
== namelen
)
307 return MATCHED_EXACTLY
;
309 if (match
[matchlen
-1] == '/' || name
[matchlen
] == '/')
310 return MATCHED_RECURSIVELY
;
311 } else if ((flags
& DO_MATCH_DIRECTORY
) &&
312 match
[matchlen
- 1] == '/' &&
313 namelen
== matchlen
- 1 &&
314 !ps_strncmp(item
, match
, name
, namelen
))
315 return MATCHED_EXACTLY
;
317 if (item
->nowildcard_len
< item
->len
&&
318 !git_fnmatch(item
, match
, name
,
319 item
->nowildcard_len
- prefix
))
320 return MATCHED_FNMATCH
;
322 /* Perform checks to see if "name" is a super set of the pathspec */
323 if (flags
& DO_MATCH_SUBMODULE
) {
324 /* name is a literal prefix of the pathspec */
325 if ((namelen
< matchlen
) &&
326 (match
[namelen
] == '/') &&
327 !ps_strncmp(item
, match
, name
, namelen
))
328 return MATCHED_RECURSIVELY
;
330 /* name" doesn't match up to the first wild character */
331 if (item
->nowildcard_len
< item
->len
&&
332 ps_strncmp(item
, match
, name
,
333 item
->nowildcard_len
- prefix
))
337 * Here is where we would perform a wildmatch to check if
338 * "name" can be matched as a directory (or a prefix) against
339 * the pathspec. Since wildmatch doesn't have this capability
340 * at the present we have to punt and say that it is a match,
341 * potentially returning a false positive
342 * The submodules themselves will be able to perform more
343 * accurate matching to determine if the pathspec matches.
345 return MATCHED_RECURSIVELY
;
352 * Given a name and a list of pathspecs, returns the nature of the
353 * closest (i.e. most specific) match of the name to any of the
356 * The caller typically calls this multiple times with the same
357 * pathspec and seen[] array but with different name/namelen
358 * (e.g. entries from the index) and is interested in seeing if and
359 * how each pathspec matches all the names it calls this function
360 * with. A mark is left in the seen[] array for each pathspec element
361 * indicating the closest type of match that element achieved, so if
362 * seen[n] remains zero after multiple invocations, that means the nth
363 * pathspec did not match any names, which could indicate that the
364 * user mistyped the nth pathspec.
366 static int do_match_pathspec(const struct pathspec
*ps
,
367 const char *name
, int namelen
,
368 int prefix
, char *seen
,
371 int i
, retval
= 0, exclude
= flags
& DO_MATCH_EXCLUDE
;
383 if (!ps
->recursive
||
384 !(ps
->magic
& PATHSPEC_MAXDEPTH
) ||
386 return MATCHED_RECURSIVELY
;
388 if (within_depth(name
, namelen
, 0, ps
->max_depth
))
389 return MATCHED_EXACTLY
;
397 for (i
= ps
->nr
- 1; i
>= 0; i
--) {
400 if ((!exclude
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
) ||
401 ( exclude
&& !(ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)))
404 if (seen
&& seen
[i
] == MATCHED_EXACTLY
)
407 * Make exclude patterns optional and never report
408 * "pathspec ':(exclude)foo' matches no files"
410 if (seen
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)
411 seen
[i
] = MATCHED_FNMATCH
;
412 how
= match_pathspec_item(ps
->items
+i
, prefix
, name
,
415 (ps
->magic
& PATHSPEC_MAXDEPTH
) &&
416 ps
->max_depth
!= -1 &&
417 how
&& how
!= MATCHED_FNMATCH
) {
418 int len
= ps
->items
[i
].len
;
419 if (name
[len
] == '/')
421 if (within_depth(name
+len
, namelen
-len
, 0, ps
->max_depth
))
422 how
= MATCHED_EXACTLY
;
429 if (seen
&& seen
[i
] < how
)
436 int match_pathspec(const struct pathspec
*ps
,
437 const char *name
, int namelen
,
438 int prefix
, char *seen
, int is_dir
)
440 int positive
, negative
;
441 unsigned flags
= is_dir
? DO_MATCH_DIRECTORY
: 0;
442 positive
= do_match_pathspec(ps
, name
, namelen
,
443 prefix
, seen
, flags
);
444 if (!(ps
->magic
& PATHSPEC_EXCLUDE
) || !positive
)
446 negative
= do_match_pathspec(ps
, name
, namelen
,
448 flags
| DO_MATCH_EXCLUDE
);
449 return negative
? 0 : positive
;
453 * Check if a submodule is a superset of the pathspec
455 int submodule_path_match(const struct pathspec
*ps
,
456 const char *submodule_name
,
459 int matched
= do_match_pathspec(ps
, submodule_name
,
460 strlen(submodule_name
),
467 int report_path_error(const char *ps_matched
,
468 const struct pathspec
*pathspec
,
472 * Make sure all pathspec matched; otherwise it is an error.
475 for (num
= 0; num
< pathspec
->nr
; num
++) {
476 int other
, found_dup
;
481 * The caller might have fed identical pathspec
482 * twice. Do not barf on such a mistake.
483 * FIXME: parse_pathspec should have eliminated
484 * duplicate pathspec.
486 for (found_dup
= other
= 0;
487 !found_dup
&& other
< pathspec
->nr
;
489 if (other
== num
|| !ps_matched
[other
])
491 if (!strcmp(pathspec
->items
[other
].original
,
492 pathspec
->items
[num
].original
))
494 * Ok, we have a match already.
501 error("pathspec '%s' did not match any file(s) known to git.",
502 pathspec
->items
[num
].original
);
509 * Return the length of the "simple" part of a path match limiter.
511 int simple_length(const char *match
)
516 unsigned char c
= *match
++;
518 if (c
== '\0' || is_glob_special(c
))
523 int no_wildcard(const char *string
)
525 return string
[simple_length(string
)] == '\0';
528 void parse_exclude_pattern(const char **pattern
,
533 const char *p
= *pattern
;
538 *flags
|= EXC_FLAG_NEGATIVE
;
542 if (len
&& p
[len
- 1] == '/') {
544 *flags
|= EXC_FLAG_MUSTBEDIR
;
546 for (i
= 0; i
< len
; i
++) {
551 *flags
|= EXC_FLAG_NODIR
;
552 *nowildcardlen
= simple_length(p
);
554 * we should have excluded the trailing slash from 'p' too,
555 * but that's one more allocation. Instead just make sure
556 * nowildcardlen does not exceed real patternlen
558 if (*nowildcardlen
> len
)
559 *nowildcardlen
= len
;
560 if (*p
== '*' && no_wildcard(p
+ 1))
561 *flags
|= EXC_FLAG_ENDSWITH
;
566 void add_exclude(const char *string
, const char *base
,
567 int baselen
, struct exclude_list
*el
, int srcpos
)
574 parse_exclude_pattern(&string
, &patternlen
, &flags
, &nowildcardlen
);
575 if (flags
& EXC_FLAG_MUSTBEDIR
) {
576 FLEXPTR_ALLOC_MEM(x
, pattern
, string
, patternlen
);
578 x
= xmalloc(sizeof(*x
));
581 x
->patternlen
= patternlen
;
582 x
->nowildcardlen
= nowildcardlen
;
584 x
->baselen
= baselen
;
587 ALLOC_GROW(el
->excludes
, el
->nr
+ 1, el
->alloc
);
588 el
->excludes
[el
->nr
++] = x
;
592 static void *read_skip_worktree_file_from_index(const struct index_state
*istate
,
593 const char *path
, size_t *size
,
594 struct sha1_stat
*sha1_stat
)
598 enum object_type type
;
602 pos
= index_name_pos(istate
, path
, len
);
605 if (!ce_skip_worktree(istate
->cache
[pos
]))
607 data
= read_sha1_file(istate
->cache
[pos
]->oid
.hash
, &type
, &sz
);
608 if (!data
|| type
!= OBJ_BLOB
) {
614 memset(&sha1_stat
->stat
, 0, sizeof(sha1_stat
->stat
));
615 hashcpy(sha1_stat
->sha1
, istate
->cache
[pos
]->oid
.hash
);
621 * Frees memory within el which was allocated for exclude patterns and
622 * the file buffer. Does not free el itself.
624 void clear_exclude_list(struct exclude_list
*el
)
628 for (i
= 0; i
< el
->nr
; i
++)
629 free(el
->excludes
[i
]);
633 memset(el
, 0, sizeof(*el
));
636 static void trim_trailing_spaces(char *buf
)
638 char *p
, *last_space
= NULL
;
640 for (p
= buf
; *p
; p
++)
660 * Given a subdirectory name and "dir" of the current directory,
661 * search the subdir in "dir" and return it, or create a new one if it
662 * does not exist in "dir".
664 * If "name" has the trailing slash, it'll be excluded in the search.
666 static struct untracked_cache_dir
*lookup_untracked(struct untracked_cache
*uc
,
667 struct untracked_cache_dir
*dir
,
668 const char *name
, int len
)
671 struct untracked_cache_dir
*d
;
674 if (len
&& name
[len
- 1] == '/')
678 while (last
> first
) {
679 int cmp
, next
= (last
+ first
) >> 1;
681 cmp
= strncmp(name
, d
->name
, len
);
682 if (!cmp
&& strlen(d
->name
) > len
)
694 FLEX_ALLOC_MEM(d
, name
, name
, len
);
696 ALLOC_GROW(dir
->dirs
, dir
->dirs_nr
+ 1, dir
->dirs_alloc
);
697 memmove(dir
->dirs
+ first
+ 1, dir
->dirs
+ first
,
698 (dir
->dirs_nr
- first
) * sizeof(*dir
->dirs
));
700 dir
->dirs
[first
] = d
;
704 static void do_invalidate_gitignore(struct untracked_cache_dir
*dir
)
708 dir
->untracked_nr
= 0;
709 for (i
= 0; i
< dir
->dirs_nr
; i
++)
710 do_invalidate_gitignore(dir
->dirs
[i
]);
713 static void invalidate_gitignore(struct untracked_cache
*uc
,
714 struct untracked_cache_dir
*dir
)
716 uc
->gitignore_invalidated
++;
717 do_invalidate_gitignore(dir
);
720 static void invalidate_directory(struct untracked_cache
*uc
,
721 struct untracked_cache_dir
*dir
)
724 uc
->dir_invalidated
++;
726 dir
->untracked_nr
= 0;
727 for (i
= 0; i
< dir
->dirs_nr
; i
++)
728 dir
->dirs
[i
]->recurse
= 0;
732 * Given a file with name "fname", read it (either from disk, or from
733 * an index if 'istate' is non-null), parse it and store the
734 * exclude rules in "el".
736 * If "ss" is not NULL, compute SHA-1 of the exclude file and fill
737 * stat data from disk (only valid if add_excludes returns zero). If
738 * ss_valid is non-zero, "ss" must contain good value as input.
740 static int add_excludes(const char *fname
, const char *base
, int baselen
,
741 struct exclude_list
*el
,
742 struct index_state
*istate
,
743 struct sha1_stat
*sha1_stat
)
746 int fd
, i
, lineno
= 1;
750 fd
= open(fname
, O_RDONLY
);
751 if (fd
< 0 || fstat(fd
, &st
) < 0) {
753 warn_on_inaccessible(fname
);
757 (buf
= read_skip_worktree_file_from_index(istate
, fname
, &size
, sha1_stat
)) == NULL
)
763 if (buf
[size
-1] != '\n') {
764 buf
= xrealloc(buf
, st_add(size
, 1));
768 size
= xsize_t(st
.st_size
);
771 fill_stat_data(&sha1_stat
->stat
, &st
);
772 hashcpy(sha1_stat
->sha1
, EMPTY_BLOB_SHA1_BIN
);
773 sha1_stat
->valid
= 1;
778 buf
= xmallocz(size
);
779 if (read_in_full(fd
, buf
, size
) != size
) {
788 if (sha1_stat
->valid
&&
789 !match_stat_data_racy(istate
, &sha1_stat
->stat
, &st
))
790 ; /* no content change, ss->sha1 still good */
792 (pos
= index_name_pos(istate
, fname
, strlen(fname
))) >= 0 &&
793 !ce_stage(istate
->cache
[pos
]) &&
794 ce_uptodate(istate
->cache
[pos
]) &&
795 !would_convert_to_git(fname
))
796 hashcpy(sha1_stat
->sha1
,
797 istate
->cache
[pos
]->oid
.hash
);
799 hash_sha1_file(buf
, size
, "blob", sha1_stat
->sha1
);
800 fill_stat_data(&sha1_stat
->stat
, &st
);
801 sha1_stat
->valid
= 1;
807 if (skip_utf8_bom(&buf
, size
))
808 size
-= buf
- el
->filebuf
;
812 for (i
= 0; i
< size
; i
++) {
813 if (buf
[i
] == '\n') {
814 if (entry
!= buf
+ i
&& entry
[0] != '#') {
815 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
816 trim_trailing_spaces(entry
);
817 add_exclude(entry
, base
, baselen
, el
, lineno
);
826 int add_excludes_from_file_to_list(const char *fname
, const char *base
,
827 int baselen
, struct exclude_list
*el
,
828 struct index_state
*istate
)
830 return add_excludes(fname
, base
, baselen
, el
, istate
, NULL
);
833 struct exclude_list
*add_exclude_list(struct dir_struct
*dir
,
834 int group_type
, const char *src
)
836 struct exclude_list
*el
;
837 struct exclude_list_group
*group
;
839 group
= &dir
->exclude_list_group
[group_type
];
840 ALLOC_GROW(group
->el
, group
->nr
+ 1, group
->alloc
);
841 el
= &group
->el
[group
->nr
++];
842 memset(el
, 0, sizeof(*el
));
848 * Used to set up core.excludesfile and .git/info/exclude lists.
850 static void add_excludes_from_file_1(struct dir_struct
*dir
, const char *fname
,
851 struct sha1_stat
*sha1_stat
)
853 struct exclude_list
*el
;
855 * catch setup_standard_excludes() that's called before
856 * dir->untracked is assigned. That function behaves
857 * differently when dir->untracked is non-NULL.
860 dir
->unmanaged_exclude_files
++;
861 el
= add_exclude_list(dir
, EXC_FILE
, fname
);
862 if (add_excludes(fname
, "", 0, el
, NULL
, sha1_stat
) < 0)
863 die("cannot use %s as an exclude file", fname
);
866 void add_excludes_from_file(struct dir_struct
*dir
, const char *fname
)
868 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
869 add_excludes_from_file_1(dir
, fname
, NULL
);
872 int match_basename(const char *basename
, int basenamelen
,
873 const char *pattern
, int prefix
, int patternlen
,
876 if (prefix
== patternlen
) {
877 if (patternlen
== basenamelen
&&
878 !fspathncmp(pattern
, basename
, basenamelen
))
880 } else if (flags
& EXC_FLAG_ENDSWITH
) {
881 /* "*literal" matching against "fooliteral" */
882 if (patternlen
- 1 <= basenamelen
&&
883 !fspathncmp(pattern
+ 1,
884 basename
+ basenamelen
- (patternlen
- 1),
888 if (fnmatch_icase_mem(pattern
, patternlen
,
889 basename
, basenamelen
,
896 int match_pathname(const char *pathname
, int pathlen
,
897 const char *base
, int baselen
,
898 const char *pattern
, int prefix
, int patternlen
,
905 * match with FNM_PATHNAME; the pattern has base implicitly
908 if (*pattern
== '/') {
915 * baselen does not count the trailing slash. base[] may or
916 * may not end with a trailing slash though.
918 if (pathlen
< baselen
+ 1 ||
919 (baselen
&& pathname
[baselen
] != '/') ||
920 fspathncmp(pathname
, base
, baselen
))
923 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
924 name
= pathname
+ pathlen
- namelen
;
928 * if the non-wildcard part is longer than the
929 * remaining pathname, surely it cannot match.
931 if (prefix
> namelen
)
934 if (fspathncmp(pattern
, name
, prefix
))
937 patternlen
-= prefix
;
942 * If the whole pattern did not have a wildcard,
943 * then our prefix match is all we need; we
944 * do not need to call fnmatch at all.
946 if (!patternlen
&& !namelen
)
950 return fnmatch_icase_mem(pattern
, patternlen
,
956 * Scan the given exclude list in reverse to see whether pathname
957 * should be ignored. The first match (i.e. the last on the list), if
958 * any, determines the fate. Returns the exclude_list element which
959 * matched, or NULL for undecided.
961 static struct exclude
*last_exclude_matching_from_list(const char *pathname
,
963 const char *basename
,
965 struct exclude_list
*el
,
966 struct index_state
*istate
)
968 struct exclude
*exc
= NULL
; /* undecided */
972 return NULL
; /* undefined */
974 for (i
= el
->nr
- 1; 0 <= i
; i
--) {
975 struct exclude
*x
= el
->excludes
[i
];
976 const char *exclude
= x
->pattern
;
977 int prefix
= x
->nowildcardlen
;
979 if (x
->flags
& EXC_FLAG_MUSTBEDIR
) {
980 if (*dtype
== DT_UNKNOWN
)
981 *dtype
= get_dtype(NULL
, istate
, pathname
, pathlen
);
982 if (*dtype
!= DT_DIR
)
986 if (x
->flags
& EXC_FLAG_NODIR
) {
987 if (match_basename(basename
,
988 pathlen
- (basename
- pathname
),
989 exclude
, prefix
, x
->patternlen
,
997 assert(x
->baselen
== 0 || x
->base
[x
->baselen
- 1] == '/');
998 if (match_pathname(pathname
, pathlen
,
999 x
->base
, x
->baselen
? x
->baselen
- 1 : 0,
1000 exclude
, prefix
, x
->patternlen
, x
->flags
)) {
1009 * Scan the list and let the last match determine the fate.
1010 * Return 1 for exclude, 0 for include and -1 for undecided.
1012 int is_excluded_from_list(const char *pathname
,
1013 int pathlen
, const char *basename
, int *dtype
,
1014 struct exclude_list
*el
, struct index_state
*istate
)
1016 struct exclude
*exclude
;
1017 exclude
= last_exclude_matching_from_list(pathname
, pathlen
, basename
,
1020 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1021 return -1; /* undecided */
1024 static struct exclude
*last_exclude_matching_from_lists(struct dir_struct
*dir
,
1025 struct index_state
*istate
,
1026 const char *pathname
, int pathlen
, const char *basename
,
1030 struct exclude_list_group
*group
;
1031 struct exclude
*exclude
;
1032 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
1033 group
= &dir
->exclude_list_group
[i
];
1034 for (j
= group
->nr
- 1; j
>= 0; j
--) {
1035 exclude
= last_exclude_matching_from_list(
1036 pathname
, pathlen
, basename
, dtype_p
,
1037 &group
->el
[j
], istate
);
1046 * Loads the per-directory exclude list for the substring of base
1047 * which has a char length of baselen.
1049 static void prep_exclude(struct dir_struct
*dir
,
1050 struct index_state
*istate
,
1051 const char *base
, int baselen
)
1053 struct exclude_list_group
*group
;
1054 struct exclude_list
*el
;
1055 struct exclude_stack
*stk
= NULL
;
1056 struct untracked_cache_dir
*untracked
;
1059 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1062 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1063 * which originate from directories not in the prefix of the
1064 * path being checked.
1066 while ((stk
= dir
->exclude_stack
) != NULL
) {
1067 if (stk
->baselen
<= baselen
&&
1068 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1070 el
= &group
->el
[dir
->exclude_stack
->exclude_ix
];
1071 dir
->exclude_stack
= stk
->prev
;
1072 dir
->exclude
= NULL
;
1073 free((char *)el
->src
); /* see strbuf_detach() below */
1074 clear_exclude_list(el
);
1079 /* Skip traversing into sub directories if the parent is excluded */
1084 * Lazy initialization. All call sites currently just
1085 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1086 * them seems lots of work for little benefit.
1088 if (!dir
->basebuf
.buf
)
1089 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1091 /* Read from the parent directories and push them down. */
1092 current
= stk
? stk
->baselen
: -1;
1093 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1095 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1099 while (current
< baselen
) {
1101 struct sha1_stat sha1_stat
;
1103 stk
= xcalloc(1, sizeof(*stk
));
1108 cp
= strchr(base
+ current
+ 1, '/');
1110 die("oops in prep_exclude");
1113 lookup_untracked(dir
->untracked
, untracked
,
1115 cp
- base
- current
);
1117 stk
->prev
= dir
->exclude_stack
;
1118 stk
->baselen
= cp
- base
;
1119 stk
->exclude_ix
= group
->nr
;
1120 stk
->ucd
= untracked
;
1121 el
= add_exclude_list(dir
, EXC_DIRS
, NULL
);
1122 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1123 assert(stk
->baselen
== dir
->basebuf
.len
);
1125 /* Abort if the directory is excluded */
1128 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1129 dir
->exclude
= last_exclude_matching_from_lists(dir
,
1131 dir
->basebuf
.buf
, stk
->baselen
- 1,
1132 dir
->basebuf
.buf
+ current
, &dt
);
1133 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1135 dir
->exclude
->flags
& EXC_FLAG_NEGATIVE
)
1136 dir
->exclude
= NULL
;
1138 dir
->exclude_stack
= stk
;
1143 /* Try to read per-directory file */
1144 hashclr(sha1_stat
.sha1
);
1145 sha1_stat
.valid
= 0;
1146 if (dir
->exclude_per_dir
&&
1148 * If we know that no files have been added in
1149 * this directory (i.e. valid_cached_dir() has
1150 * been executed and set untracked->valid) ..
1152 (!untracked
|| !untracked
->valid
||
1154 * .. and .gitignore does not exist before
1155 * (i.e. null exclude_sha1). Then we can skip
1156 * loading .gitignore, which would result in
1159 !is_null_sha1(untracked
->exclude_sha1
))) {
1161 * dir->basebuf gets reused by the traversal, but we
1162 * need fname to remain unchanged to ensure the src
1163 * member of each struct exclude correctly
1164 * back-references its source file. Other invocations
1165 * of add_exclude_list provide stable strings, so we
1166 * strbuf_detach() and free() here in the caller.
1168 struct strbuf sb
= STRBUF_INIT
;
1169 strbuf_addbuf(&sb
, &dir
->basebuf
);
1170 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1171 el
->src
= strbuf_detach(&sb
, NULL
);
1172 add_excludes(el
->src
, el
->src
, stk
->baselen
, el
, istate
,
1173 untracked
? &sha1_stat
: NULL
);
1176 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1177 * will first be called in valid_cached_dir() then maybe many
1178 * times more in last_exclude_matching(). When the cache is
1179 * used, last_exclude_matching() will not be called and
1180 * reading .gitignore content will be a waste.
1182 * So when it's called by valid_cached_dir() and we can get
1183 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1184 * modified on work tree), we could delay reading the
1185 * .gitignore content until we absolutely need it in
1186 * last_exclude_matching(). Be careful about ignore rule
1187 * order, though, if you do that.
1190 hashcmp(sha1_stat
.sha1
, untracked
->exclude_sha1
)) {
1191 invalidate_gitignore(dir
->untracked
, untracked
);
1192 hashcpy(untracked
->exclude_sha1
, sha1_stat
.sha1
);
1194 dir
->exclude_stack
= stk
;
1195 current
= stk
->baselen
;
1197 strbuf_setlen(&dir
->basebuf
, baselen
);
1201 * Loads the exclude lists for the directory containing pathname, then
1202 * scans all exclude lists to determine whether pathname is excluded.
1203 * Returns the exclude_list element which matched, or NULL for
1206 struct exclude
*last_exclude_matching(struct dir_struct
*dir
,
1207 struct index_state
*istate
,
1208 const char *pathname
,
1211 int pathlen
= strlen(pathname
);
1212 const char *basename
= strrchr(pathname
, '/');
1213 basename
= (basename
) ? basename
+1 : pathname
;
1215 prep_exclude(dir
, istate
, pathname
, basename
-pathname
);
1218 return dir
->exclude
;
1220 return last_exclude_matching_from_lists(dir
, istate
, pathname
, pathlen
,
1225 * Loads the exclude lists for the directory containing pathname, then
1226 * scans all exclude lists to determine whether pathname is excluded.
1227 * Returns 1 if true, otherwise 0.
1229 int is_excluded(struct dir_struct
*dir
, struct index_state
*istate
,
1230 const char *pathname
, int *dtype_p
)
1232 struct exclude
*exclude
=
1233 last_exclude_matching(dir
, istate
, pathname
, dtype_p
);
1235 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1239 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1241 struct dir_entry
*ent
;
1243 FLEX_ALLOC_MEM(ent
, name
, pathname
, len
);
1248 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
,
1249 struct index_state
*istate
,
1250 const char *pathname
, int len
)
1252 if (index_file_exists(istate
, pathname
, len
, ignore_case
))
1255 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1256 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1259 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
,
1260 struct index_state
*istate
,
1261 const char *pathname
, int len
)
1263 if (!index_name_is_other(istate
, pathname
, len
))
1266 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1267 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1271 index_nonexistent
= 0,
1277 * Do not use the alphabetically sorted index to look up
1278 * the directory name; instead, use the case insensitive
1281 static enum exist_status
directory_exists_in_index_icase(struct index_state
*istate
,
1282 const char *dirname
, int len
)
1284 struct cache_entry
*ce
;
1286 if (index_dir_exists(istate
, dirname
, len
))
1287 return index_directory
;
1289 ce
= index_file_exists(istate
, dirname
, len
, ignore_case
);
1290 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1291 return index_gitdir
;
1293 return index_nonexistent
;
1297 * The index sorts alphabetically by entry name, which
1298 * means that a gitlink sorts as '\0' at the end, while
1299 * a directory (which is defined not as an entry, but as
1300 * the files it contains) will sort with the '/' at the
1303 static enum exist_status
directory_exists_in_index(struct index_state
*istate
,
1304 const char *dirname
, int len
)
1309 return directory_exists_in_index_icase(istate
, dirname
, len
);
1311 pos
= index_name_pos(istate
, dirname
, len
);
1314 while (pos
< istate
->cache_nr
) {
1315 const struct cache_entry
*ce
= istate
->cache
[pos
++];
1316 unsigned char endchar
;
1318 if (strncmp(ce
->name
, dirname
, len
))
1320 endchar
= ce
->name
[len
];
1324 return index_directory
;
1325 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1326 return index_gitdir
;
1328 return index_nonexistent
;
1332 * When we find a directory when traversing the filesystem, we
1333 * have three distinct cases:
1336 * - see it as a directory
1339 * and which one we choose depends on a combination of existing
1340 * git index contents and the flags passed into the directory
1341 * traversal routine.
1343 * Case 1: If we *already* have entries in the index under that
1344 * directory name, we always recurse into the directory to see
1347 * Case 2: If we *already* have that directory name as a gitlink,
1348 * we always continue to see it as a gitlink, regardless of whether
1349 * there is an actual git directory there or not (it might not
1350 * be checked out as a subproject!)
1352 * Case 3: if we didn't have it in the index previously, we
1353 * have a few sub-cases:
1355 * (a) if "show_other_directories" is true, we show it as
1356 * just a directory, unless "hide_empty_directories" is
1357 * also true, in which case we need to check if it contains any
1358 * untracked and / or ignored files.
1359 * (b) if it looks like a git directory, and we don't have
1360 * 'no_gitlinks' set we treat it as a gitlink, and show it
1362 * (c) otherwise, we recurse into it.
1364 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1365 struct untracked_cache_dir
*untracked
,
1366 const char *dirname
, int len
, int baselen
, int exclude
,
1367 const struct pathspec
*pathspec
)
1369 /* The "len-1" is to strip the final '/' */
1370 switch (directory_exists_in_index(&the_index
, dirname
, len
-1)) {
1371 case index_directory
:
1372 return path_recurse
;
1377 case index_nonexistent
:
1378 if (dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)
1380 if (!(dir
->flags
& DIR_NO_GITLINKS
)) {
1381 unsigned char sha1
[20];
1382 if (resolve_gitlink_ref(dirname
, "HEAD", sha1
) == 0)
1383 return path_untracked
;
1385 return path_recurse
;
1388 /* This is the "show_other_directories" case */
1390 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1391 return exclude
? path_excluded
: path_untracked
;
1393 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1394 dirname
+ baselen
, len
- baselen
);
1395 return read_directory_recursive(dir
, dirname
, len
,
1396 untracked
, 1, pathspec
);
1400 * This is an inexact early pruning of any recursive directory
1401 * reading - if the path cannot possibly be in the pathspec,
1402 * return true, and we'll skip it early.
1404 static int simplify_away(const char *path
, int pathlen
,
1405 const struct pathspec
*pathspec
)
1409 if (!pathspec
|| !pathspec
->nr
)
1412 GUARD_PATHSPEC(pathspec
,
1421 for (i
= 0; i
< pathspec
->nr
; i
++) {
1422 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1423 int len
= item
->nowildcard_len
;
1427 if (!ps_strncmp(item
, item
->match
, path
, len
))
1435 * This function tells us whether an excluded path matches a
1436 * list of "interesting" pathspecs. That is, whether a path matched
1437 * by any of the pathspecs could possibly be ignored by excluding
1438 * the specified path. This can happen if:
1440 * 1. the path is mentioned explicitly in the pathspec
1442 * 2. the path is a directory prefix of some element in the
1445 static int exclude_matches_pathspec(const char *path
, int pathlen
,
1446 const struct pathspec
*pathspec
)
1450 if (!pathspec
|| !pathspec
->nr
)
1453 GUARD_PATHSPEC(pathspec
,
1461 for (i
= 0; i
< pathspec
->nr
; i
++) {
1462 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1463 int len
= item
->nowildcard_len
;
1465 if (len
== pathlen
&&
1466 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1468 if (len
> pathlen
&&
1469 item
->match
[pathlen
] == '/' &&
1470 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1476 static int get_index_dtype(struct index_state
*istate
,
1477 const char *path
, int len
)
1480 const struct cache_entry
*ce
;
1482 ce
= index_file_exists(istate
, path
, len
, 0);
1484 if (!ce_uptodate(ce
))
1486 if (S_ISGITLINK(ce
->ce_mode
))
1489 * Nobody actually cares about the
1490 * difference between DT_LNK and DT_REG
1495 /* Try to look it up as a directory */
1496 pos
= index_name_pos(istate
, path
, len
);
1500 while (pos
< istate
->cache_nr
) {
1501 ce
= istate
->cache
[pos
++];
1502 if (strncmp(ce
->name
, path
, len
))
1504 if (ce
->name
[len
] > '/')
1506 if (ce
->name
[len
] < '/')
1508 if (!ce_uptodate(ce
))
1509 break; /* continue? */
1515 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
1516 const char *path
, int len
)
1518 int dtype
= de
? DTYPE(de
) : DT_UNKNOWN
;
1521 if (dtype
!= DT_UNKNOWN
)
1523 dtype
= get_index_dtype(istate
, path
, len
);
1524 if (dtype
!= DT_UNKNOWN
)
1526 if (lstat(path
, &st
))
1528 if (S_ISREG(st
.st_mode
))
1530 if (S_ISDIR(st
.st_mode
))
1532 if (S_ISLNK(st
.st_mode
))
1537 static enum path_treatment
treat_one_path(struct dir_struct
*dir
,
1538 struct untracked_cache_dir
*untracked
,
1539 struct strbuf
*path
,
1541 const struct pathspec
*pathspec
,
1542 int dtype
, struct dirent
*de
)
1545 int has_path_in_index
= !!index_file_exists(&the_index
, path
->buf
, path
->len
, ignore_case
);
1547 if (dtype
== DT_UNKNOWN
)
1548 dtype
= get_dtype(de
, &the_index
, path
->buf
, path
->len
);
1550 /* Always exclude indexed files */
1551 if (dtype
!= DT_DIR
&& has_path_in_index
)
1555 * When we are looking at a directory P in the working tree,
1556 * there are three cases:
1558 * (1) P exists in the index. Everything inside the directory P in
1559 * the working tree needs to go when P is checked out from the
1562 * (2) P does not exist in the index, but there is P/Q in the index.
1563 * We know P will stay a directory when we check out the contents
1564 * of the index, but we do not know yet if there is a directory
1565 * P/Q in the working tree to be killed, so we need to recurse.
1567 * (3) P does not exist in the index, and there is no P/Q in the index
1568 * to require P to be a directory, either. Only in this case, we
1569 * know that everything inside P will not be killed without
1572 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
1573 (dtype
== DT_DIR
) &&
1574 !has_path_in_index
&&
1575 (directory_exists_in_index(&the_index
, path
->buf
, path
->len
) == index_nonexistent
))
1578 exclude
= is_excluded(dir
, &the_index
, path
->buf
, &dtype
);
1581 * Excluded? If we don't explicitly want to show
1582 * ignored files, ignore it
1584 if (exclude
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
1585 return path_excluded
;
1591 strbuf_addch(path
, '/');
1592 return treat_directory(dir
, untracked
, path
->buf
, path
->len
,
1593 baselen
, exclude
, pathspec
);
1596 return exclude
? path_excluded
: path_untracked
;
1600 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
1601 struct untracked_cache_dir
*untracked
,
1602 struct cached_dir
*cdir
,
1603 struct strbuf
*path
,
1605 const struct pathspec
*pathspec
)
1607 strbuf_setlen(path
, baselen
);
1609 strbuf_addstr(path
, cdir
->file
);
1610 return path_untracked
;
1612 strbuf_addstr(path
, cdir
->ucd
->name
);
1613 /* treat_one_path() does this before it calls treat_directory() */
1614 strbuf_complete(path
, '/');
1615 if (cdir
->ucd
->check_only
)
1617 * check_only is set as a result of treat_directory() getting
1618 * to its bottom. Verify again the same set of directories
1619 * with check_only set.
1621 return read_directory_recursive(dir
, path
->buf
, path
->len
,
1622 cdir
->ucd
, 1, pathspec
);
1624 * We get path_recurse in the first run when
1625 * directory_exists_in_index() returns index_nonexistent. We
1626 * are sure that new changes in the index does not impact the
1627 * outcome. Return now.
1629 return path_recurse
;
1632 static enum path_treatment
treat_path(struct dir_struct
*dir
,
1633 struct untracked_cache_dir
*untracked
,
1634 struct cached_dir
*cdir
,
1635 struct strbuf
*path
,
1637 const struct pathspec
*pathspec
)
1640 struct dirent
*de
= cdir
->de
;
1643 return treat_path_fast(dir
, untracked
, cdir
, path
,
1645 if (is_dot_or_dotdot(de
->d_name
) || !strcmp(de
->d_name
, ".git"))
1647 strbuf_setlen(path
, baselen
);
1648 strbuf_addstr(path
, de
->d_name
);
1649 if (simplify_away(path
->buf
, path
->len
, pathspec
))
1653 return treat_one_path(dir
, untracked
, path
, baselen
, pathspec
, dtype
, de
);
1656 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
1660 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
1661 dir
->untracked_alloc
);
1662 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
1665 static int valid_cached_dir(struct dir_struct
*dir
,
1666 struct untracked_cache_dir
*untracked
,
1667 struct strbuf
*path
,
1675 if (stat(path
->len
? path
->buf
: ".", &st
)) {
1676 invalidate_directory(dir
->untracked
, untracked
);
1677 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
1680 if (!untracked
->valid
||
1681 match_stat_data_racy(&the_index
, &untracked
->stat_data
, &st
)) {
1682 if (untracked
->valid
)
1683 invalidate_directory(dir
->untracked
, untracked
);
1684 fill_stat_data(&untracked
->stat_data
, &st
);
1688 if (untracked
->check_only
!= !!check_only
) {
1689 invalidate_directory(dir
->untracked
, untracked
);
1694 * prep_exclude will be called eventually on this directory,
1695 * but it's called much later in last_exclude_matching(). We
1696 * need it now to determine the validity of the cache for this
1697 * path. The next calls will be nearly no-op, the way
1698 * prep_exclude() is designed.
1700 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
1701 strbuf_addch(path
, '/');
1702 prep_exclude(dir
, &the_index
, path
->buf
, path
->len
);
1703 strbuf_setlen(path
, path
->len
- 1);
1705 prep_exclude(dir
, &the_index
, path
->buf
, path
->len
);
1707 /* hopefully prep_exclude() haven't invalidated this entry... */
1708 return untracked
->valid
;
1711 static int open_cached_dir(struct cached_dir
*cdir
,
1712 struct dir_struct
*dir
,
1713 struct untracked_cache_dir
*untracked
,
1714 struct strbuf
*path
,
1717 memset(cdir
, 0, sizeof(*cdir
));
1718 cdir
->untracked
= untracked
;
1719 if (valid_cached_dir(dir
, untracked
, path
, check_only
))
1721 cdir
->fdir
= opendir(path
->len
? path
->buf
: ".");
1723 dir
->untracked
->dir_opened
++;
1729 static int read_cached_dir(struct cached_dir
*cdir
)
1732 cdir
->de
= readdir(cdir
->fdir
);
1737 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
1738 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
1748 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
1749 struct untracked_cache_dir
*d
= cdir
->untracked
;
1750 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
1756 static void close_cached_dir(struct cached_dir
*cdir
)
1759 closedir(cdir
->fdir
);
1761 * We have gone through this directory and found no untracked
1762 * entries. Mark it valid.
1764 if (cdir
->untracked
) {
1765 cdir
->untracked
->valid
= 1;
1766 cdir
->untracked
->recurse
= 1;
1771 * Read a directory tree. We currently ignore anything but
1772 * directories, regular files and symlinks. That's because git
1773 * doesn't handle them at all yet. Maybe that will change some
1776 * Also, we ignore the name ".git" (even if it is not a directory).
1777 * That likely will not change.
1779 * Returns the most significant path_treatment value encountered in the scan.
1781 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
1782 const char *base
, int baselen
,
1783 struct untracked_cache_dir
*untracked
, int check_only
,
1784 const struct pathspec
*pathspec
)
1786 struct cached_dir cdir
;
1787 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
1788 struct strbuf path
= STRBUF_INIT
;
1790 strbuf_add(&path
, base
, baselen
);
1792 if (open_cached_dir(&cdir
, dir
, untracked
, &path
, check_only
))
1796 untracked
->check_only
= !!check_only
;
1798 while (!read_cached_dir(&cdir
)) {
1799 /* check how the file or directory should be treated */
1800 state
= treat_path(dir
, untracked
, &cdir
, &path
,
1803 if (state
> dir_state
)
1806 /* recurse into subdir if instructed by treat_path */
1807 if (state
== path_recurse
) {
1808 struct untracked_cache_dir
*ud
;
1809 ud
= lookup_untracked(dir
->untracked
, untracked
,
1811 path
.len
- baselen
);
1813 read_directory_recursive(dir
, path
.buf
,
1815 check_only
, pathspec
);
1816 if (subdir_state
> dir_state
)
1817 dir_state
= subdir_state
;
1821 /* abort early if maximum state has been reached */
1822 if (dir_state
== path_untracked
) {
1824 add_untracked(untracked
, path
.buf
+ baselen
);
1827 /* skip the dir_add_* part */
1831 /* add the path to the appropriate result list */
1834 if (dir
->flags
& DIR_SHOW_IGNORED
)
1835 dir_add_name(dir
, &the_index
, path
.buf
, path
.len
);
1836 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
1837 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
1838 exclude_matches_pathspec(path
.buf
, path
.len
,
1840 dir_add_ignored(dir
, &the_index
, path
.buf
, path
.len
);
1843 case path_untracked
:
1844 if (dir
->flags
& DIR_SHOW_IGNORED
)
1846 dir_add_name(dir
, &the_index
, path
.buf
, path
.len
);
1848 add_untracked(untracked
, path
.buf
+ baselen
);
1855 close_cached_dir(&cdir
);
1857 strbuf_release(&path
);
1862 static int cmp_name(const void *p1
, const void *p2
)
1864 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
1865 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
1867 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
1870 static int treat_leading_path(struct dir_struct
*dir
,
1871 const char *path
, int len
,
1872 const struct pathspec
*pathspec
)
1874 struct strbuf sb
= STRBUF_INIT
;
1875 int baselen
, rc
= 0;
1877 int old_flags
= dir
->flags
;
1879 while (len
&& path
[len
- 1] == '/')
1884 dir
->flags
&= ~DIR_SHOW_OTHER_DIRECTORIES
;
1886 cp
= path
+ baselen
+ !!baselen
;
1887 cp
= memchr(cp
, '/', path
+ len
- cp
);
1891 baselen
= cp
- path
;
1892 strbuf_setlen(&sb
, 0);
1893 strbuf_add(&sb
, path
, baselen
);
1894 if (!is_directory(sb
.buf
))
1896 if (simplify_away(sb
.buf
, sb
.len
, pathspec
))
1898 if (treat_one_path(dir
, NULL
, &sb
, baselen
, pathspec
,
1899 DT_DIR
, NULL
) == path_none
)
1900 break; /* do not recurse into it */
1901 if (len
<= baselen
) {
1903 break; /* finished checking */
1906 strbuf_release(&sb
);
1907 dir
->flags
= old_flags
;
1911 static const char *get_ident_string(void)
1913 static struct strbuf sb
= STRBUF_INIT
;
1918 if (uname(&uts
) < 0)
1919 die_errno(_("failed to get kernel name and information"));
1920 strbuf_addf(&sb
, "Location %s, system %s", get_git_work_tree(),
1925 static int ident_in_untracked(const struct untracked_cache
*uc
)
1928 * Previous git versions may have saved many NUL separated
1929 * strings in the "ident" field, but it is insane to manage
1930 * many locations, so just take care of the first one.
1933 return !strcmp(uc
->ident
.buf
, get_ident_string());
1936 static void set_untracked_ident(struct untracked_cache
*uc
)
1938 strbuf_reset(&uc
->ident
);
1939 strbuf_addstr(&uc
->ident
, get_ident_string());
1942 * This strbuf used to contain a list of NUL separated
1943 * strings, so save NUL too for backward compatibility.
1945 strbuf_addch(&uc
->ident
, 0);
1948 static void new_untracked_cache(struct index_state
*istate
)
1950 struct untracked_cache
*uc
= xcalloc(1, sizeof(*uc
));
1951 strbuf_init(&uc
->ident
, 100);
1952 uc
->exclude_per_dir
= ".gitignore";
1953 /* should be the same flags used by git-status */
1954 uc
->dir_flags
= DIR_SHOW_OTHER_DIRECTORIES
| DIR_HIDE_EMPTY_DIRECTORIES
;
1955 set_untracked_ident(uc
);
1956 istate
->untracked
= uc
;
1957 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1960 void add_untracked_cache(struct index_state
*istate
)
1962 if (!istate
->untracked
) {
1963 new_untracked_cache(istate
);
1965 if (!ident_in_untracked(istate
->untracked
)) {
1966 free_untracked_cache(istate
->untracked
);
1967 new_untracked_cache(istate
);
1972 void remove_untracked_cache(struct index_state
*istate
)
1974 if (istate
->untracked
) {
1975 free_untracked_cache(istate
->untracked
);
1976 istate
->untracked
= NULL
;
1977 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1981 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
1983 const struct pathspec
*pathspec
)
1985 struct untracked_cache_dir
*root
;
1987 if (!dir
->untracked
|| getenv("GIT_DISABLE_UNTRACKED_CACHE"))
1991 * We only support $GIT_DIR/info/exclude and core.excludesfile
1992 * as the global ignore rule files. Any other additions
1993 * (e.g. from command line) invalidate the cache. This
1994 * condition also catches running setup_standard_excludes()
1995 * before setting dir->untracked!
1997 if (dir
->unmanaged_exclude_files
)
2001 * Optimize for the main use case only: whole-tree git
2002 * status. More work involved in treat_leading_path() if we
2003 * use cache on just a subset of the worktree. pathspec
2004 * support could make the matter even worse.
2006 if (base_len
|| (pathspec
&& pathspec
->nr
))
2009 /* Different set of flags may produce different results */
2010 if (dir
->flags
!= dir
->untracked
->dir_flags
||
2012 * See treat_directory(), case index_nonexistent. Without
2013 * this flag, we may need to also cache .git file content
2014 * for the resolve_gitlink_ref() call, which we don't.
2016 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
2017 /* We don't support collecting ignore files */
2018 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
2019 DIR_COLLECT_IGNORED
)))
2023 * If we use .gitignore in the cache and now you change it to
2024 * .gitexclude, everything will go wrong.
2026 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
2027 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
2031 * EXC_CMDL is not considered in the cache. If people set it,
2034 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
2037 if (!ident_in_untracked(dir
->untracked
)) {
2038 warning(_("Untracked cache is disabled on this system or location."));
2042 if (!dir
->untracked
->root
) {
2043 const int len
= sizeof(*dir
->untracked
->root
);
2044 dir
->untracked
->root
= xmalloc(len
);
2045 memset(dir
->untracked
->root
, 0, len
);
2048 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2049 root
= dir
->untracked
->root
;
2050 if (hashcmp(dir
->ss_info_exclude
.sha1
,
2051 dir
->untracked
->ss_info_exclude
.sha1
)) {
2052 invalidate_gitignore(dir
->untracked
, root
);
2053 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2055 if (hashcmp(dir
->ss_excludes_file
.sha1
,
2056 dir
->untracked
->ss_excludes_file
.sha1
)) {
2057 invalidate_gitignore(dir
->untracked
, root
);
2058 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2061 /* Make sure this directory is not dropped out at saving phase */
2066 int read_directory(struct dir_struct
*dir
, const char *path
,
2067 int len
, const struct pathspec
*pathspec
)
2069 struct untracked_cache_dir
*untracked
;
2071 if (has_symlink_leading_path(path
, len
))
2074 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2077 * make sure untracked cache code path is disabled,
2078 * e.g. prep_exclude()
2080 dir
->untracked
= NULL
;
2081 if (!len
|| treat_leading_path(dir
, path
, len
, pathspec
))
2082 read_directory_recursive(dir
, path
, len
, untracked
, 0, pathspec
);
2083 QSORT(dir
->entries
, dir
->nr
, cmp_name
);
2084 QSORT(dir
->ignored
, dir
->ignored_nr
, cmp_name
);
2085 if (dir
->untracked
) {
2086 static struct trace_key trace_untracked_stats
= TRACE_KEY_INIT(UNTRACKED_STATS
);
2087 trace_printf_key(&trace_untracked_stats
,
2088 "node creation: %u\n"
2089 "gitignore invalidation: %u\n"
2090 "directory invalidation: %u\n"
2092 dir
->untracked
->dir_created
,
2093 dir
->untracked
->gitignore_invalidated
,
2094 dir
->untracked
->dir_invalidated
,
2095 dir
->untracked
->dir_opened
);
2096 if (dir
->untracked
== the_index
.untracked
&&
2097 (dir
->untracked
->dir_opened
||
2098 dir
->untracked
->gitignore_invalidated
||
2099 dir
->untracked
->dir_invalidated
))
2100 the_index
.cache_changed
|= UNTRACKED_CHANGED
;
2101 if (dir
->untracked
!= the_index
.untracked
) {
2102 free(dir
->untracked
);
2103 dir
->untracked
= NULL
;
2109 int file_exists(const char *f
)
2112 return lstat(f
, &sb
) == 0;
2115 static int cmp_icase(char a
, char b
)
2120 return toupper(a
) - toupper(b
);
2125 * Given two normalized paths (a trailing slash is ok), if subdir is
2126 * outside dir, return -1. Otherwise return the offset in subdir that
2127 * can be used as relative path to dir.
2129 int dir_inside_of(const char *subdir
, const char *dir
)
2133 assert(dir
&& subdir
&& *dir
&& *subdir
);
2135 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2141 /* hel[p]/me vs hel[l]/yeah */
2142 if (*dir
&& *subdir
)
2146 return !*dir
? offset
: -1; /* same dir */
2148 /* foo/[b]ar vs foo/[] */
2149 if (is_dir_sep(dir
[-1]))
2150 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2152 /* foo[/]bar vs foo[] */
2153 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2156 int is_inside_dir(const char *dir
)
2165 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2170 int is_empty_dir(const char *path
)
2172 DIR *dir
= opendir(path
);
2179 while ((e
= readdir(dir
)) != NULL
)
2180 if (!is_dot_or_dotdot(e
->d_name
)) {
2189 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2193 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2194 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2195 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2196 unsigned char submodule_head
[20];
2198 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2199 !resolve_gitlink_ref(path
->buf
, "HEAD", submodule_head
)) {
2200 /* Do not descend and nuke a nested git work tree. */
2206 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2207 dir
= opendir(path
->buf
);
2209 if (errno
== ENOENT
)
2210 return keep_toplevel
? -1 : 0;
2211 else if (errno
== EACCES
&& !keep_toplevel
)
2213 * An empty dir could be removable even if it
2216 return rmdir(path
->buf
);
2220 strbuf_complete(path
, '/');
2223 while ((e
= readdir(dir
)) != NULL
) {
2225 if (is_dot_or_dotdot(e
->d_name
))
2228 strbuf_setlen(path
, len
);
2229 strbuf_addstr(path
, e
->d_name
);
2230 if (lstat(path
->buf
, &st
)) {
2231 if (errno
== ENOENT
)
2233 * file disappeared, which is what we
2238 } else if (S_ISDIR(st
.st_mode
)) {
2239 if (!remove_dir_recurse(path
, flag
, &kept_down
))
2240 continue; /* happy */
2241 } else if (!only_empty
&&
2242 (!unlink(path
->buf
) || errno
== ENOENT
)) {
2243 continue; /* happy, too */
2246 /* path too long, stat fails, or non-directory still exists */
2252 strbuf_setlen(path
, original_len
);
2253 if (!ret
&& !keep_toplevel
&& !kept_down
)
2254 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
2257 * report the uplevel that it is not an error that we
2258 * did not rmdir() our directory.
2264 int remove_dir_recursively(struct strbuf
*path
, int flag
)
2266 return remove_dir_recurse(path
, flag
, NULL
);
2269 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
2271 void setup_standard_excludes(struct dir_struct
*dir
)
2273 dir
->exclude_per_dir
= ".gitignore";
2275 /* core.excludefile defaulting to $XDG_HOME/git/ignore */
2277 excludes_file
= xdg_config_home("ignore");
2278 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
2279 add_excludes_from_file_1(dir
, excludes_file
,
2280 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
2282 /* per repository user preference */
2283 if (startup_info
->have_repository
) {
2284 const char *path
= git_path_info_exclude();
2285 if (!access_or_warn(path
, R_OK
, 0))
2286 add_excludes_from_file_1(dir
, path
,
2287 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
2291 int remove_path(const char *name
)
2295 if (unlink(name
) && errno
!= ENOENT
&& errno
!= ENOTDIR
)
2298 slash
= strrchr(name
, '/');
2300 char *dirs
= xstrdup(name
);
2301 slash
= dirs
+ (slash
- name
);
2304 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
2311 * Frees memory within dir which was allocated for exclude lists and
2312 * the exclude_stack. Does not free dir itself.
2314 void clear_directory(struct dir_struct
*dir
)
2317 struct exclude_list_group
*group
;
2318 struct exclude_list
*el
;
2319 struct exclude_stack
*stk
;
2321 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
2322 group
= &dir
->exclude_list_group
[i
];
2323 for (j
= 0; j
< group
->nr
; j
++) {
2326 free((char *)el
->src
);
2327 clear_exclude_list(el
);
2332 stk
= dir
->exclude_stack
;
2334 struct exclude_stack
*prev
= stk
->prev
;
2338 strbuf_release(&dir
->basebuf
);
2341 struct ondisk_untracked_cache
{
2342 struct stat_data info_exclude_stat
;
2343 struct stat_data excludes_file_stat
;
2345 unsigned char info_exclude_sha1
[20];
2346 unsigned char excludes_file_sha1
[20];
2347 char exclude_per_dir
[FLEX_ARRAY
];
2350 #define ouc_size(len) (offsetof(struct ondisk_untracked_cache, exclude_per_dir) + len + 1)
2353 int index
; /* number of written untracked_cache_dir */
2354 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
2355 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
2356 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
2358 struct strbuf sb_stat
;
2359 struct strbuf sb_sha1
;
2362 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
2364 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
2365 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
2366 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
2367 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
2368 to
->sd_dev
= htonl(from
->sd_dev
);
2369 to
->sd_ino
= htonl(from
->sd_ino
);
2370 to
->sd_uid
= htonl(from
->sd_uid
);
2371 to
->sd_gid
= htonl(from
->sd_gid
);
2372 to
->sd_size
= htonl(from
->sd_size
);
2375 static void write_one_dir(struct untracked_cache_dir
*untracked
,
2376 struct write_data
*wd
)
2378 struct stat_data stat_data
;
2379 struct strbuf
*out
= &wd
->out
;
2380 unsigned char intbuf
[16];
2381 unsigned int intlen
, value
;
2382 int i
= wd
->index
++;
2385 * untracked_nr should be reset whenever valid is clear, but
2388 if (!untracked
->valid
) {
2389 untracked
->untracked_nr
= 0;
2390 untracked
->check_only
= 0;
2393 if (untracked
->check_only
)
2394 ewah_set(wd
->check_only
, i
);
2395 if (untracked
->valid
) {
2396 ewah_set(wd
->valid
, i
);
2397 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
2398 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
2400 if (!is_null_sha1(untracked
->exclude_sha1
)) {
2401 ewah_set(wd
->sha1_valid
, i
);
2402 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_sha1
, 20);
2405 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
2406 strbuf_add(out
, intbuf
, intlen
);
2408 /* skip non-recurse directories */
2409 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
2410 if (untracked
->dirs
[i
]->recurse
)
2412 intlen
= encode_varint(value
, intbuf
);
2413 strbuf_add(out
, intbuf
, intlen
);
2415 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
2417 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
2418 strbuf_add(out
, untracked
->untracked
[i
],
2419 strlen(untracked
->untracked
[i
]) + 1);
2421 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
2422 if (untracked
->dirs
[i
]->recurse
)
2423 write_one_dir(untracked
->dirs
[i
], wd
);
2426 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
2428 struct ondisk_untracked_cache
*ouc
;
2429 struct write_data wd
;
2430 unsigned char varbuf
[16];
2432 size_t len
= strlen(untracked
->exclude_per_dir
);
2434 FLEX_ALLOC_MEM(ouc
, exclude_per_dir
, untracked
->exclude_per_dir
, len
);
2435 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
2436 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
2437 hashcpy(ouc
->info_exclude_sha1
, untracked
->ss_info_exclude
.sha1
);
2438 hashcpy(ouc
->excludes_file_sha1
, untracked
->ss_excludes_file
.sha1
);
2439 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
2441 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
2442 strbuf_add(out
, varbuf
, varint_len
);
2443 strbuf_addbuf(out
, &untracked
->ident
);
2445 strbuf_add(out
, ouc
, ouc_size(len
));
2449 if (!untracked
->root
) {
2450 varint_len
= encode_varint(0, varbuf
);
2451 strbuf_add(out
, varbuf
, varint_len
);
2456 wd
.check_only
= ewah_new();
2457 wd
.valid
= ewah_new();
2458 wd
.sha1_valid
= ewah_new();
2459 strbuf_init(&wd
.out
, 1024);
2460 strbuf_init(&wd
.sb_stat
, 1024);
2461 strbuf_init(&wd
.sb_sha1
, 1024);
2462 write_one_dir(untracked
->root
, &wd
);
2464 varint_len
= encode_varint(wd
.index
, varbuf
);
2465 strbuf_add(out
, varbuf
, varint_len
);
2466 strbuf_addbuf(out
, &wd
.out
);
2467 ewah_serialize_strbuf(wd
.valid
, out
);
2468 ewah_serialize_strbuf(wd
.check_only
, out
);
2469 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
2470 strbuf_addbuf(out
, &wd
.sb_stat
);
2471 strbuf_addbuf(out
, &wd
.sb_sha1
);
2472 strbuf_addch(out
, '\0'); /* safe guard for string lists */
2474 ewah_free(wd
.valid
);
2475 ewah_free(wd
.check_only
);
2476 ewah_free(wd
.sha1_valid
);
2477 strbuf_release(&wd
.out
);
2478 strbuf_release(&wd
.sb_stat
);
2479 strbuf_release(&wd
.sb_sha1
);
2482 static void free_untracked(struct untracked_cache_dir
*ucd
)
2487 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
2488 free_untracked(ucd
->dirs
[i
]);
2489 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
2490 free(ucd
->untracked
[i
]);
2491 free(ucd
->untracked
);
2496 void free_untracked_cache(struct untracked_cache
*uc
)
2499 free_untracked(uc
->root
);
2505 struct untracked_cache_dir
**ucd
;
2506 struct ewah_bitmap
*check_only
;
2507 struct ewah_bitmap
*valid
;
2508 struct ewah_bitmap
*sha1_valid
;
2509 const unsigned char *data
;
2510 const unsigned char *end
;
2513 static void stat_data_from_disk(struct stat_data
*to
, const struct stat_data
*from
)
2515 to
->sd_ctime
.sec
= get_be32(&from
->sd_ctime
.sec
);
2516 to
->sd_ctime
.nsec
= get_be32(&from
->sd_ctime
.nsec
);
2517 to
->sd_mtime
.sec
= get_be32(&from
->sd_mtime
.sec
);
2518 to
->sd_mtime
.nsec
= get_be32(&from
->sd_mtime
.nsec
);
2519 to
->sd_dev
= get_be32(&from
->sd_dev
);
2520 to
->sd_ino
= get_be32(&from
->sd_ino
);
2521 to
->sd_uid
= get_be32(&from
->sd_uid
);
2522 to
->sd_gid
= get_be32(&from
->sd_gid
);
2523 to
->sd_size
= get_be32(&from
->sd_size
);
2526 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
2527 struct read_data
*rd
)
2529 struct untracked_cache_dir ud
, *untracked
;
2530 const unsigned char *next
, *data
= rd
->data
, *end
= rd
->end
;
2534 memset(&ud
, 0, sizeof(ud
));
2537 value
= decode_varint(&next
);
2541 ud
.untracked_alloc
= value
;
2542 ud
.untracked_nr
= value
;
2543 if (ud
.untracked_nr
)
2544 ALLOC_ARRAY(ud
.untracked
, ud
.untracked_nr
);
2548 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&next
);
2551 ALLOC_ARRAY(ud
.dirs
, ud
.dirs_nr
);
2554 len
= strlen((const char *)data
);
2555 next
= data
+ len
+ 1;
2558 *untracked_
= untracked
= xmalloc(st_add(sizeof(*untracked
), len
));
2559 memcpy(untracked
, &ud
, sizeof(ud
));
2560 memcpy(untracked
->name
, data
, len
+ 1);
2563 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
2564 len
= strlen((const char *)data
);
2565 next
= data
+ len
+ 1;
2568 untracked
->untracked
[i
] = xstrdup((const char*)data
);
2572 rd
->ucd
[rd
->index
++] = untracked
;
2575 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
2576 len
= read_one_dir(untracked
->dirs
+ i
, rd
);
2583 static void set_check_only(size_t pos
, void *cb
)
2585 struct read_data
*rd
= cb
;
2586 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2590 static void read_stat(size_t pos
, void *cb
)
2592 struct read_data
*rd
= cb
;
2593 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2594 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
2595 rd
->data
= rd
->end
+ 1;
2598 stat_data_from_disk(&ud
->stat_data
, (struct stat_data
*)rd
->data
);
2599 rd
->data
+= sizeof(struct stat_data
);
2603 static void read_sha1(size_t pos
, void *cb
)
2605 struct read_data
*rd
= cb
;
2606 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2607 if (rd
->data
+ 20 > rd
->end
) {
2608 rd
->data
= rd
->end
+ 1;
2611 hashcpy(ud
->exclude_sha1
, rd
->data
);
2615 static void load_sha1_stat(struct sha1_stat
*sha1_stat
,
2616 const struct stat_data
*stat
,
2617 const unsigned char *sha1
)
2619 stat_data_from_disk(&sha1_stat
->stat
, stat
);
2620 hashcpy(sha1_stat
->sha1
, sha1
);
2621 sha1_stat
->valid
= 1;
2624 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
2626 const struct ondisk_untracked_cache
*ouc
;
2627 struct untracked_cache
*uc
;
2628 struct read_data rd
;
2629 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
2633 if (sz
<= 1 || end
[-1] != '\0')
2637 ident_len
= decode_varint(&next
);
2638 if (next
+ ident_len
> end
)
2640 ident
= (const char *)next
;
2643 ouc
= (const struct ondisk_untracked_cache
*)next
;
2644 if (next
+ ouc_size(0) > end
)
2647 uc
= xcalloc(1, sizeof(*uc
));
2648 strbuf_init(&uc
->ident
, ident_len
);
2649 strbuf_add(&uc
->ident
, ident
, ident_len
);
2650 load_sha1_stat(&uc
->ss_info_exclude
, &ouc
->info_exclude_stat
,
2651 ouc
->info_exclude_sha1
);
2652 load_sha1_stat(&uc
->ss_excludes_file
, &ouc
->excludes_file_stat
,
2653 ouc
->excludes_file_sha1
);
2654 uc
->dir_flags
= get_be32(&ouc
->dir_flags
);
2655 uc
->exclude_per_dir
= xstrdup(ouc
->exclude_per_dir
);
2656 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
2657 next
+= ouc_size(strlen(ouc
->exclude_per_dir
));
2661 len
= decode_varint(&next
);
2662 if (next
> end
|| len
== 0)
2665 rd
.valid
= ewah_new();
2666 rd
.check_only
= ewah_new();
2667 rd
.sha1_valid
= ewah_new();
2671 ALLOC_ARRAY(rd
.ucd
, len
);
2673 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
2677 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
2682 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
2687 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
2691 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
2692 rd
.data
= next
+ len
;
2693 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
2694 ewah_each_bit(rd
.sha1_valid
, read_sha1
, &rd
);
2699 ewah_free(rd
.valid
);
2700 ewah_free(rd
.check_only
);
2701 ewah_free(rd
.sha1_valid
);
2704 free_untracked_cache(uc
);
2710 static void invalidate_one_directory(struct untracked_cache
*uc
,
2711 struct untracked_cache_dir
*ucd
)
2713 uc
->dir_invalidated
++;
2715 ucd
->untracked_nr
= 0;
2719 * Normally when an entry is added or removed from a directory,
2720 * invalidating that directory is enough. No need to touch its
2721 * ancestors. When a directory is shown as "foo/bar/" in git-status
2722 * however, deleting or adding an entry may have cascading effect.
2724 * Say the "foo/bar/file" has become untracked, we need to tell the
2725 * untracked_cache_dir of "foo" that "bar/" is not an untracked
2726 * directory any more (because "bar" is managed by foo as an untracked
2729 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
2730 * was the last untracked entry in the entire "foo", we should show
2731 * "foo/" instead. Which means we have to invalidate past "bar" up to
2734 * This function traverses all directories from root to leaf. If there
2735 * is a chance of one of the above cases happening, we invalidate back
2736 * to root. Otherwise we just invalidate the leaf. There may be a more
2737 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
2738 * detect these cases and avoid unnecessary invalidation, for example,
2739 * checking for the untracked entry named "bar/" in "foo", but for now
2740 * stick to something safe and simple.
2742 static int invalidate_one_component(struct untracked_cache
*uc
,
2743 struct untracked_cache_dir
*dir
,
2744 const char *path
, int len
)
2746 const char *rest
= strchr(path
, '/');
2749 int component_len
= rest
- path
;
2750 struct untracked_cache_dir
*d
=
2751 lookup_untracked(uc
, dir
, path
, component_len
);
2753 invalidate_one_component(uc
, d
, rest
+ 1,
2754 len
- (component_len
+ 1));
2756 invalidate_one_directory(uc
, dir
);
2760 invalidate_one_directory(uc
, dir
);
2761 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
2764 void untracked_cache_invalidate_path(struct index_state
*istate
,
2767 if (!istate
->untracked
|| !istate
->untracked
->root
)
2769 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
2770 path
, strlen(path
));
2773 void untracked_cache_remove_from_index(struct index_state
*istate
,
2776 untracked_cache_invalidate_path(istate
, path
);
2779 void untracked_cache_add_to_index(struct index_state
*istate
,
2782 untracked_cache_invalidate_path(istate
, path
);
2785 /* Update gitfile and core.worktree setting to connect work tree and git dir */
2786 void connect_work_tree_and_git_dir(const char *work_tree_
, const char *git_dir_
)
2788 struct strbuf gitfile_sb
= STRBUF_INIT
;
2789 struct strbuf cfg_sb
= STRBUF_INIT
;
2790 struct strbuf rel_path
= STRBUF_INIT
;
2791 char *git_dir
, *work_tree
;
2793 /* Prepare .git file */
2794 strbuf_addf(&gitfile_sb
, "%s/.git", work_tree_
);
2795 if (safe_create_leading_directories_const(gitfile_sb
.buf
))
2796 die(_("could not create directories for %s"), gitfile_sb
.buf
);
2798 /* Prepare config file */
2799 strbuf_addf(&cfg_sb
, "%s/config", git_dir_
);
2800 if (safe_create_leading_directories_const(cfg_sb
.buf
))
2801 die(_("could not create directories for %s"), cfg_sb
.buf
);
2803 git_dir
= real_pathdup(git_dir_
, 1);
2804 work_tree
= real_pathdup(work_tree_
, 1);
2806 /* Write .git file */
2807 write_file(gitfile_sb
.buf
, "gitdir: %s",
2808 relative_path(git_dir
, work_tree
, &rel_path
));
2809 /* Update core.worktree setting */
2810 git_config_set_in_file(cfg_sb
.buf
, "core.worktree",
2811 relative_path(work_tree
, git_dir
, &rel_path
));
2813 strbuf_release(&gitfile_sb
);
2814 strbuf_release(&cfg_sb
);
2815 strbuf_release(&rel_path
);
2821 * Migrate the git directory of the given path from old_git_dir to new_git_dir.
2823 void relocate_gitdir(const char *path
, const char *old_git_dir
, const char *new_git_dir
)
2825 if (rename(old_git_dir
, new_git_dir
) < 0)
2826 die_errno(_("could not migrate git directory from '%s' to '%s'"),
2827 old_git_dir
, new_git_dir
);
2829 connect_work_tree_and_git_dir(path
, new_git_dir
);