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 * the index if "check_index" is non-zero), 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
, int check_index
,
742 struct sha1_stat
*sha1_stat
)
745 int fd
, i
, lineno
= 1;
749 fd
= open(fname
, O_RDONLY
);
750 if (fd
< 0 || fstat(fd
, &st
) < 0) {
752 warn_on_inaccessible(fname
);
756 (buf
= read_skip_worktree_file_from_index(&the_index
, fname
, &size
, sha1_stat
)) == NULL
)
762 if (buf
[size
-1] != '\n') {
763 buf
= xrealloc(buf
, st_add(size
, 1));
767 size
= xsize_t(st
.st_size
);
770 fill_stat_data(&sha1_stat
->stat
, &st
);
771 hashcpy(sha1_stat
->sha1
, EMPTY_BLOB_SHA1_BIN
);
772 sha1_stat
->valid
= 1;
777 buf
= xmallocz(size
);
778 if (read_in_full(fd
, buf
, size
) != size
) {
787 if (sha1_stat
->valid
&&
788 !match_stat_data_racy(&the_index
, &sha1_stat
->stat
, &st
))
789 ; /* no content change, ss->sha1 still good */
790 else if (check_index
&&
791 (pos
= index_name_pos(&the_index
, fname
, strlen(fname
))) >= 0 &&
792 !ce_stage(the_index
.cache
[pos
]) &&
793 ce_uptodate(the_index
.cache
[pos
]) &&
794 !would_convert_to_git(fname
))
795 hashcpy(sha1_stat
->sha1
,
796 the_index
.cache
[pos
]->oid
.hash
);
798 hash_sha1_file(buf
, size
, "blob", sha1_stat
->sha1
);
799 fill_stat_data(&sha1_stat
->stat
, &st
);
800 sha1_stat
->valid
= 1;
806 if (skip_utf8_bom(&buf
, size
))
807 size
-= buf
- el
->filebuf
;
811 for (i
= 0; i
< size
; i
++) {
812 if (buf
[i
] == '\n') {
813 if (entry
!= buf
+ i
&& entry
[0] != '#') {
814 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
815 trim_trailing_spaces(entry
);
816 add_exclude(entry
, base
, baselen
, el
, lineno
);
825 int add_excludes_from_file_to_list(const char *fname
, const char *base
,
826 int baselen
, struct exclude_list
*el
,
829 return add_excludes(fname
, base
, baselen
, el
, check_index
, NULL
);
832 struct exclude_list
*add_exclude_list(struct dir_struct
*dir
,
833 int group_type
, const char *src
)
835 struct exclude_list
*el
;
836 struct exclude_list_group
*group
;
838 group
= &dir
->exclude_list_group
[group_type
];
839 ALLOC_GROW(group
->el
, group
->nr
+ 1, group
->alloc
);
840 el
= &group
->el
[group
->nr
++];
841 memset(el
, 0, sizeof(*el
));
847 * Used to set up core.excludesfile and .git/info/exclude lists.
849 static void add_excludes_from_file_1(struct dir_struct
*dir
, const char *fname
,
850 struct sha1_stat
*sha1_stat
)
852 struct exclude_list
*el
;
854 * catch setup_standard_excludes() that's called before
855 * dir->untracked is assigned. That function behaves
856 * differently when dir->untracked is non-NULL.
859 dir
->unmanaged_exclude_files
++;
860 el
= add_exclude_list(dir
, EXC_FILE
, fname
);
861 if (add_excludes(fname
, "", 0, el
, 0, sha1_stat
) < 0)
862 die("cannot use %s as an exclude file", fname
);
865 void add_excludes_from_file(struct dir_struct
*dir
, const char *fname
)
867 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
868 add_excludes_from_file_1(dir
, fname
, NULL
);
871 int match_basename(const char *basename
, int basenamelen
,
872 const char *pattern
, int prefix
, int patternlen
,
875 if (prefix
== patternlen
) {
876 if (patternlen
== basenamelen
&&
877 !fspathncmp(pattern
, basename
, basenamelen
))
879 } else if (flags
& EXC_FLAG_ENDSWITH
) {
880 /* "*literal" matching against "fooliteral" */
881 if (patternlen
- 1 <= basenamelen
&&
882 !fspathncmp(pattern
+ 1,
883 basename
+ basenamelen
- (patternlen
- 1),
887 if (fnmatch_icase_mem(pattern
, patternlen
,
888 basename
, basenamelen
,
895 int match_pathname(const char *pathname
, int pathlen
,
896 const char *base
, int baselen
,
897 const char *pattern
, int prefix
, int patternlen
,
904 * match with FNM_PATHNAME; the pattern has base implicitly
907 if (*pattern
== '/') {
914 * baselen does not count the trailing slash. base[] may or
915 * may not end with a trailing slash though.
917 if (pathlen
< baselen
+ 1 ||
918 (baselen
&& pathname
[baselen
] != '/') ||
919 fspathncmp(pathname
, base
, baselen
))
922 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
923 name
= pathname
+ pathlen
- namelen
;
927 * if the non-wildcard part is longer than the
928 * remaining pathname, surely it cannot match.
930 if (prefix
> namelen
)
933 if (fspathncmp(pattern
, name
, prefix
))
936 patternlen
-= prefix
;
941 * If the whole pattern did not have a wildcard,
942 * then our prefix match is all we need; we
943 * do not need to call fnmatch at all.
945 if (!patternlen
&& !namelen
)
949 return fnmatch_icase_mem(pattern
, patternlen
,
955 * Scan the given exclude list in reverse to see whether pathname
956 * should be ignored. The first match (i.e. the last on the list), if
957 * any, determines the fate. Returns the exclude_list element which
958 * matched, or NULL for undecided.
960 static struct exclude
*last_exclude_matching_from_list(const char *pathname
,
962 const char *basename
,
964 struct exclude_list
*el
)
966 struct exclude
*exc
= NULL
; /* undecided */
970 return NULL
; /* undefined */
972 for (i
= el
->nr
- 1; 0 <= i
; i
--) {
973 struct exclude
*x
= el
->excludes
[i
];
974 const char *exclude
= x
->pattern
;
975 int prefix
= x
->nowildcardlen
;
977 if (x
->flags
& EXC_FLAG_MUSTBEDIR
) {
978 if (*dtype
== DT_UNKNOWN
)
979 *dtype
= get_dtype(NULL
, &the_index
, pathname
, pathlen
);
980 if (*dtype
!= DT_DIR
)
984 if (x
->flags
& EXC_FLAG_NODIR
) {
985 if (match_basename(basename
,
986 pathlen
- (basename
- pathname
),
987 exclude
, prefix
, x
->patternlen
,
995 assert(x
->baselen
== 0 || x
->base
[x
->baselen
- 1] == '/');
996 if (match_pathname(pathname
, pathlen
,
997 x
->base
, x
->baselen
? x
->baselen
- 1 : 0,
998 exclude
, prefix
, x
->patternlen
, x
->flags
)) {
1007 * Scan the list and let the last match determine the fate.
1008 * Return 1 for exclude, 0 for include and -1 for undecided.
1010 int is_excluded_from_list(const char *pathname
,
1011 int pathlen
, const char *basename
, int *dtype
,
1012 struct exclude_list
*el
)
1014 struct exclude
*exclude
;
1015 exclude
= last_exclude_matching_from_list(pathname
, pathlen
, basename
, dtype
, el
);
1017 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1018 return -1; /* undecided */
1021 static struct exclude
*last_exclude_matching_from_lists(struct dir_struct
*dir
,
1022 const char *pathname
, int pathlen
, const char *basename
,
1026 struct exclude_list_group
*group
;
1027 struct exclude
*exclude
;
1028 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
1029 group
= &dir
->exclude_list_group
[i
];
1030 for (j
= group
->nr
- 1; j
>= 0; j
--) {
1031 exclude
= last_exclude_matching_from_list(
1032 pathname
, pathlen
, basename
, dtype_p
,
1042 * Loads the per-directory exclude list for the substring of base
1043 * which has a char length of baselen.
1045 static void prep_exclude(struct dir_struct
*dir
, const char *base
, int baselen
)
1047 struct exclude_list_group
*group
;
1048 struct exclude_list
*el
;
1049 struct exclude_stack
*stk
= NULL
;
1050 struct untracked_cache_dir
*untracked
;
1053 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1056 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1057 * which originate from directories not in the prefix of the
1058 * path being checked.
1060 while ((stk
= dir
->exclude_stack
) != NULL
) {
1061 if (stk
->baselen
<= baselen
&&
1062 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1064 el
= &group
->el
[dir
->exclude_stack
->exclude_ix
];
1065 dir
->exclude_stack
= stk
->prev
;
1066 dir
->exclude
= NULL
;
1067 free((char *)el
->src
); /* see strbuf_detach() below */
1068 clear_exclude_list(el
);
1073 /* Skip traversing into sub directories if the parent is excluded */
1078 * Lazy initialization. All call sites currently just
1079 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1080 * them seems lots of work for little benefit.
1082 if (!dir
->basebuf
.buf
)
1083 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1085 /* Read from the parent directories and push them down. */
1086 current
= stk
? stk
->baselen
: -1;
1087 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1089 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1093 while (current
< baselen
) {
1095 struct sha1_stat sha1_stat
;
1097 stk
= xcalloc(1, sizeof(*stk
));
1102 cp
= strchr(base
+ current
+ 1, '/');
1104 die("oops in prep_exclude");
1107 lookup_untracked(dir
->untracked
, untracked
,
1109 cp
- base
- current
);
1111 stk
->prev
= dir
->exclude_stack
;
1112 stk
->baselen
= cp
- base
;
1113 stk
->exclude_ix
= group
->nr
;
1114 stk
->ucd
= untracked
;
1115 el
= add_exclude_list(dir
, EXC_DIRS
, NULL
);
1116 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1117 assert(stk
->baselen
== dir
->basebuf
.len
);
1119 /* Abort if the directory is excluded */
1122 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1123 dir
->exclude
= last_exclude_matching_from_lists(dir
,
1124 dir
->basebuf
.buf
, stk
->baselen
- 1,
1125 dir
->basebuf
.buf
+ current
, &dt
);
1126 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1128 dir
->exclude
->flags
& EXC_FLAG_NEGATIVE
)
1129 dir
->exclude
= NULL
;
1131 dir
->exclude_stack
= stk
;
1136 /* Try to read per-directory file */
1137 hashclr(sha1_stat
.sha1
);
1138 sha1_stat
.valid
= 0;
1139 if (dir
->exclude_per_dir
&&
1141 * If we know that no files have been added in
1142 * this directory (i.e. valid_cached_dir() has
1143 * been executed and set untracked->valid) ..
1145 (!untracked
|| !untracked
->valid
||
1147 * .. and .gitignore does not exist before
1148 * (i.e. null exclude_sha1). Then we can skip
1149 * loading .gitignore, which would result in
1152 !is_null_sha1(untracked
->exclude_sha1
))) {
1154 * dir->basebuf gets reused by the traversal, but we
1155 * need fname to remain unchanged to ensure the src
1156 * member of each struct exclude correctly
1157 * back-references its source file. Other invocations
1158 * of add_exclude_list provide stable strings, so we
1159 * strbuf_detach() and free() here in the caller.
1161 struct strbuf sb
= STRBUF_INIT
;
1162 strbuf_addbuf(&sb
, &dir
->basebuf
);
1163 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1164 el
->src
= strbuf_detach(&sb
, NULL
);
1165 add_excludes(el
->src
, el
->src
, stk
->baselen
, el
, 1,
1166 untracked
? &sha1_stat
: NULL
);
1169 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1170 * will first be called in valid_cached_dir() then maybe many
1171 * times more in last_exclude_matching(). When the cache is
1172 * used, last_exclude_matching() will not be called and
1173 * reading .gitignore content will be a waste.
1175 * So when it's called by valid_cached_dir() and we can get
1176 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1177 * modified on work tree), we could delay reading the
1178 * .gitignore content until we absolutely need it in
1179 * last_exclude_matching(). Be careful about ignore rule
1180 * order, though, if you do that.
1183 hashcmp(sha1_stat
.sha1
, untracked
->exclude_sha1
)) {
1184 invalidate_gitignore(dir
->untracked
, untracked
);
1185 hashcpy(untracked
->exclude_sha1
, sha1_stat
.sha1
);
1187 dir
->exclude_stack
= stk
;
1188 current
= stk
->baselen
;
1190 strbuf_setlen(&dir
->basebuf
, baselen
);
1194 * Loads the exclude lists for the directory containing pathname, then
1195 * scans all exclude lists to determine whether pathname is excluded.
1196 * Returns the exclude_list element which matched, or NULL for
1199 struct exclude
*last_exclude_matching(struct dir_struct
*dir
,
1200 const char *pathname
,
1203 int pathlen
= strlen(pathname
);
1204 const char *basename
= strrchr(pathname
, '/');
1205 basename
= (basename
) ? basename
+1 : pathname
;
1207 prep_exclude(dir
, pathname
, basename
-pathname
);
1210 return dir
->exclude
;
1212 return last_exclude_matching_from_lists(dir
, pathname
, pathlen
,
1217 * Loads the exclude lists for the directory containing pathname, then
1218 * scans all exclude lists to determine whether pathname is excluded.
1219 * Returns 1 if true, otherwise 0.
1221 int is_excluded(struct dir_struct
*dir
, const char *pathname
, int *dtype_p
)
1223 struct exclude
*exclude
=
1224 last_exclude_matching(dir
, pathname
, dtype_p
);
1226 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1230 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1232 struct dir_entry
*ent
;
1234 FLEX_ALLOC_MEM(ent
, name
, pathname
, len
);
1239 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
,
1240 struct index_state
*istate
,
1241 const char *pathname
, int len
)
1243 if (index_file_exists(istate
, pathname
, len
, ignore_case
))
1246 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1247 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1250 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
,
1251 struct index_state
*istate
,
1252 const char *pathname
, int len
)
1254 if (!index_name_is_other(istate
, pathname
, len
))
1257 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1258 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1262 index_nonexistent
= 0,
1268 * Do not use the alphabetically sorted index to look up
1269 * the directory name; instead, use the case insensitive
1272 static enum exist_status
directory_exists_in_index_icase(struct index_state
*istate
,
1273 const char *dirname
, int len
)
1275 struct cache_entry
*ce
;
1277 if (index_dir_exists(istate
, dirname
, len
))
1278 return index_directory
;
1280 ce
= index_file_exists(istate
, dirname
, len
, ignore_case
);
1281 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1282 return index_gitdir
;
1284 return index_nonexistent
;
1288 * The index sorts alphabetically by entry name, which
1289 * means that a gitlink sorts as '\0' at the end, while
1290 * a directory (which is defined not as an entry, but as
1291 * the files it contains) will sort with the '/' at the
1294 static enum exist_status
directory_exists_in_index(struct index_state
*istate
,
1295 const char *dirname
, int len
)
1300 return directory_exists_in_index_icase(istate
, dirname
, len
);
1302 pos
= index_name_pos(istate
, dirname
, len
);
1305 while (pos
< istate
->cache_nr
) {
1306 const struct cache_entry
*ce
= istate
->cache
[pos
++];
1307 unsigned char endchar
;
1309 if (strncmp(ce
->name
, dirname
, len
))
1311 endchar
= ce
->name
[len
];
1315 return index_directory
;
1316 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1317 return index_gitdir
;
1319 return index_nonexistent
;
1323 * When we find a directory when traversing the filesystem, we
1324 * have three distinct cases:
1327 * - see it as a directory
1330 * and which one we choose depends on a combination of existing
1331 * git index contents and the flags passed into the directory
1332 * traversal routine.
1334 * Case 1: If we *already* have entries in the index under that
1335 * directory name, we always recurse into the directory to see
1338 * Case 2: If we *already* have that directory name as a gitlink,
1339 * we always continue to see it as a gitlink, regardless of whether
1340 * there is an actual git directory there or not (it might not
1341 * be checked out as a subproject!)
1343 * Case 3: if we didn't have it in the index previously, we
1344 * have a few sub-cases:
1346 * (a) if "show_other_directories" is true, we show it as
1347 * just a directory, unless "hide_empty_directories" is
1348 * also true, in which case we need to check if it contains any
1349 * untracked and / or ignored files.
1350 * (b) if it looks like a git directory, and we don't have
1351 * 'no_gitlinks' set we treat it as a gitlink, and show it
1353 * (c) otherwise, we recurse into it.
1355 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1356 struct untracked_cache_dir
*untracked
,
1357 const char *dirname
, int len
, int baselen
, int exclude
,
1358 const struct pathspec
*pathspec
)
1360 /* The "len-1" is to strip the final '/' */
1361 switch (directory_exists_in_index(&the_index
, dirname
, len
-1)) {
1362 case index_directory
:
1363 return path_recurse
;
1368 case index_nonexistent
:
1369 if (dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)
1371 if (!(dir
->flags
& DIR_NO_GITLINKS
)) {
1372 unsigned char sha1
[20];
1373 if (resolve_gitlink_ref(dirname
, "HEAD", sha1
) == 0)
1374 return path_untracked
;
1376 return path_recurse
;
1379 /* This is the "show_other_directories" case */
1381 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1382 return exclude
? path_excluded
: path_untracked
;
1384 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1385 dirname
+ baselen
, len
- baselen
);
1386 return read_directory_recursive(dir
, dirname
, len
,
1387 untracked
, 1, pathspec
);
1391 * This is an inexact early pruning of any recursive directory
1392 * reading - if the path cannot possibly be in the pathspec,
1393 * return true, and we'll skip it early.
1395 static int simplify_away(const char *path
, int pathlen
,
1396 const struct pathspec
*pathspec
)
1400 if (!pathspec
|| !pathspec
->nr
)
1403 GUARD_PATHSPEC(pathspec
,
1412 for (i
= 0; i
< pathspec
->nr
; i
++) {
1413 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1414 int len
= item
->nowildcard_len
;
1418 if (!ps_strncmp(item
, item
->match
, path
, len
))
1426 * This function tells us whether an excluded path matches a
1427 * list of "interesting" pathspecs. That is, whether a path matched
1428 * by any of the pathspecs could possibly be ignored by excluding
1429 * the specified path. This can happen if:
1431 * 1. the path is mentioned explicitly in the pathspec
1433 * 2. the path is a directory prefix of some element in the
1436 static int exclude_matches_pathspec(const char *path
, int pathlen
,
1437 const struct pathspec
*pathspec
)
1441 if (!pathspec
|| !pathspec
->nr
)
1444 GUARD_PATHSPEC(pathspec
,
1452 for (i
= 0; i
< pathspec
->nr
; i
++) {
1453 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1454 int len
= item
->nowildcard_len
;
1456 if (len
== pathlen
&&
1457 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1459 if (len
> pathlen
&&
1460 item
->match
[pathlen
] == '/' &&
1461 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1467 static int get_index_dtype(struct index_state
*istate
,
1468 const char *path
, int len
)
1471 const struct cache_entry
*ce
;
1473 ce
= index_file_exists(istate
, path
, len
, 0);
1475 if (!ce_uptodate(ce
))
1477 if (S_ISGITLINK(ce
->ce_mode
))
1480 * Nobody actually cares about the
1481 * difference between DT_LNK and DT_REG
1486 /* Try to look it up as a directory */
1487 pos
= index_name_pos(istate
, path
, len
);
1491 while (pos
< istate
->cache_nr
) {
1492 ce
= istate
->cache
[pos
++];
1493 if (strncmp(ce
->name
, path
, len
))
1495 if (ce
->name
[len
] > '/')
1497 if (ce
->name
[len
] < '/')
1499 if (!ce_uptodate(ce
))
1500 break; /* continue? */
1506 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
1507 const char *path
, int len
)
1509 int dtype
= de
? DTYPE(de
) : DT_UNKNOWN
;
1512 if (dtype
!= DT_UNKNOWN
)
1514 dtype
= get_index_dtype(istate
, path
, len
);
1515 if (dtype
!= DT_UNKNOWN
)
1517 if (lstat(path
, &st
))
1519 if (S_ISREG(st
.st_mode
))
1521 if (S_ISDIR(st
.st_mode
))
1523 if (S_ISLNK(st
.st_mode
))
1528 static enum path_treatment
treat_one_path(struct dir_struct
*dir
,
1529 struct untracked_cache_dir
*untracked
,
1530 struct strbuf
*path
,
1532 const struct pathspec
*pathspec
,
1533 int dtype
, struct dirent
*de
)
1536 int has_path_in_index
= !!index_file_exists(&the_index
, path
->buf
, path
->len
, ignore_case
);
1538 if (dtype
== DT_UNKNOWN
)
1539 dtype
= get_dtype(de
, &the_index
, path
->buf
, path
->len
);
1541 /* Always exclude indexed files */
1542 if (dtype
!= DT_DIR
&& has_path_in_index
)
1546 * When we are looking at a directory P in the working tree,
1547 * there are three cases:
1549 * (1) P exists in the index. Everything inside the directory P in
1550 * the working tree needs to go when P is checked out from the
1553 * (2) P does not exist in the index, but there is P/Q in the index.
1554 * We know P will stay a directory when we check out the contents
1555 * of the index, but we do not know yet if there is a directory
1556 * P/Q in the working tree to be killed, so we need to recurse.
1558 * (3) P does not exist in the index, and there is no P/Q in the index
1559 * to require P to be a directory, either. Only in this case, we
1560 * know that everything inside P will not be killed without
1563 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
1564 (dtype
== DT_DIR
) &&
1565 !has_path_in_index
&&
1566 (directory_exists_in_index(&the_index
, path
->buf
, path
->len
) == index_nonexistent
))
1569 exclude
= is_excluded(dir
, path
->buf
, &dtype
);
1572 * Excluded? If we don't explicitly want to show
1573 * ignored files, ignore it
1575 if (exclude
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
1576 return path_excluded
;
1582 strbuf_addch(path
, '/');
1583 return treat_directory(dir
, untracked
, path
->buf
, path
->len
,
1584 baselen
, exclude
, pathspec
);
1587 return exclude
? path_excluded
: path_untracked
;
1591 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
1592 struct untracked_cache_dir
*untracked
,
1593 struct cached_dir
*cdir
,
1594 struct strbuf
*path
,
1596 const struct pathspec
*pathspec
)
1598 strbuf_setlen(path
, baselen
);
1600 strbuf_addstr(path
, cdir
->file
);
1601 return path_untracked
;
1603 strbuf_addstr(path
, cdir
->ucd
->name
);
1604 /* treat_one_path() does this before it calls treat_directory() */
1605 strbuf_complete(path
, '/');
1606 if (cdir
->ucd
->check_only
)
1608 * check_only is set as a result of treat_directory() getting
1609 * to its bottom. Verify again the same set of directories
1610 * with check_only set.
1612 return read_directory_recursive(dir
, path
->buf
, path
->len
,
1613 cdir
->ucd
, 1, pathspec
);
1615 * We get path_recurse in the first run when
1616 * directory_exists_in_index() returns index_nonexistent. We
1617 * are sure that new changes in the index does not impact the
1618 * outcome. Return now.
1620 return path_recurse
;
1623 static enum path_treatment
treat_path(struct dir_struct
*dir
,
1624 struct untracked_cache_dir
*untracked
,
1625 struct cached_dir
*cdir
,
1626 struct strbuf
*path
,
1628 const struct pathspec
*pathspec
)
1631 struct dirent
*de
= cdir
->de
;
1634 return treat_path_fast(dir
, untracked
, cdir
, path
,
1636 if (is_dot_or_dotdot(de
->d_name
) || !strcmp(de
->d_name
, ".git"))
1638 strbuf_setlen(path
, baselen
);
1639 strbuf_addstr(path
, de
->d_name
);
1640 if (simplify_away(path
->buf
, path
->len
, pathspec
))
1644 return treat_one_path(dir
, untracked
, path
, baselen
, pathspec
, dtype
, de
);
1647 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
1651 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
1652 dir
->untracked_alloc
);
1653 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
1656 static int valid_cached_dir(struct dir_struct
*dir
,
1657 struct untracked_cache_dir
*untracked
,
1658 struct strbuf
*path
,
1666 if (stat(path
->len
? path
->buf
: ".", &st
)) {
1667 invalidate_directory(dir
->untracked
, untracked
);
1668 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
1671 if (!untracked
->valid
||
1672 match_stat_data_racy(&the_index
, &untracked
->stat_data
, &st
)) {
1673 if (untracked
->valid
)
1674 invalidate_directory(dir
->untracked
, untracked
);
1675 fill_stat_data(&untracked
->stat_data
, &st
);
1679 if (untracked
->check_only
!= !!check_only
) {
1680 invalidate_directory(dir
->untracked
, untracked
);
1685 * prep_exclude will be called eventually on this directory,
1686 * but it's called much later in last_exclude_matching(). We
1687 * need it now to determine the validity of the cache for this
1688 * path. The next calls will be nearly no-op, the way
1689 * prep_exclude() is designed.
1691 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
1692 strbuf_addch(path
, '/');
1693 prep_exclude(dir
, path
->buf
, path
->len
);
1694 strbuf_setlen(path
, path
->len
- 1);
1696 prep_exclude(dir
, path
->buf
, path
->len
);
1698 /* hopefully prep_exclude() haven't invalidated this entry... */
1699 return untracked
->valid
;
1702 static int open_cached_dir(struct cached_dir
*cdir
,
1703 struct dir_struct
*dir
,
1704 struct untracked_cache_dir
*untracked
,
1705 struct strbuf
*path
,
1708 memset(cdir
, 0, sizeof(*cdir
));
1709 cdir
->untracked
= untracked
;
1710 if (valid_cached_dir(dir
, untracked
, path
, check_only
))
1712 cdir
->fdir
= opendir(path
->len
? path
->buf
: ".");
1714 dir
->untracked
->dir_opened
++;
1720 static int read_cached_dir(struct cached_dir
*cdir
)
1723 cdir
->de
= readdir(cdir
->fdir
);
1728 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
1729 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
1739 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
1740 struct untracked_cache_dir
*d
= cdir
->untracked
;
1741 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
1747 static void close_cached_dir(struct cached_dir
*cdir
)
1750 closedir(cdir
->fdir
);
1752 * We have gone through this directory and found no untracked
1753 * entries. Mark it valid.
1755 if (cdir
->untracked
) {
1756 cdir
->untracked
->valid
= 1;
1757 cdir
->untracked
->recurse
= 1;
1762 * Read a directory tree. We currently ignore anything but
1763 * directories, regular files and symlinks. That's because git
1764 * doesn't handle them at all yet. Maybe that will change some
1767 * Also, we ignore the name ".git" (even if it is not a directory).
1768 * That likely will not change.
1770 * Returns the most significant path_treatment value encountered in the scan.
1772 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
1773 const char *base
, int baselen
,
1774 struct untracked_cache_dir
*untracked
, int check_only
,
1775 const struct pathspec
*pathspec
)
1777 struct cached_dir cdir
;
1778 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
1779 struct strbuf path
= STRBUF_INIT
;
1781 strbuf_add(&path
, base
, baselen
);
1783 if (open_cached_dir(&cdir
, dir
, untracked
, &path
, check_only
))
1787 untracked
->check_only
= !!check_only
;
1789 while (!read_cached_dir(&cdir
)) {
1790 /* check how the file or directory should be treated */
1791 state
= treat_path(dir
, untracked
, &cdir
, &path
,
1794 if (state
> dir_state
)
1797 /* recurse into subdir if instructed by treat_path */
1798 if (state
== path_recurse
) {
1799 struct untracked_cache_dir
*ud
;
1800 ud
= lookup_untracked(dir
->untracked
, untracked
,
1802 path
.len
- baselen
);
1804 read_directory_recursive(dir
, path
.buf
,
1806 check_only
, pathspec
);
1807 if (subdir_state
> dir_state
)
1808 dir_state
= subdir_state
;
1812 /* abort early if maximum state has been reached */
1813 if (dir_state
== path_untracked
) {
1815 add_untracked(untracked
, path
.buf
+ baselen
);
1818 /* skip the dir_add_* part */
1822 /* add the path to the appropriate result list */
1825 if (dir
->flags
& DIR_SHOW_IGNORED
)
1826 dir_add_name(dir
, &the_index
, path
.buf
, path
.len
);
1827 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
1828 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
1829 exclude_matches_pathspec(path
.buf
, path
.len
,
1831 dir_add_ignored(dir
, &the_index
, path
.buf
, path
.len
);
1834 case path_untracked
:
1835 if (dir
->flags
& DIR_SHOW_IGNORED
)
1837 dir_add_name(dir
, &the_index
, path
.buf
, path
.len
);
1839 add_untracked(untracked
, path
.buf
+ baselen
);
1846 close_cached_dir(&cdir
);
1848 strbuf_release(&path
);
1853 static int cmp_name(const void *p1
, const void *p2
)
1855 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
1856 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
1858 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
1861 static int treat_leading_path(struct dir_struct
*dir
,
1862 const char *path
, int len
,
1863 const struct pathspec
*pathspec
)
1865 struct strbuf sb
= STRBUF_INIT
;
1866 int baselen
, rc
= 0;
1868 int old_flags
= dir
->flags
;
1870 while (len
&& path
[len
- 1] == '/')
1875 dir
->flags
&= ~DIR_SHOW_OTHER_DIRECTORIES
;
1877 cp
= path
+ baselen
+ !!baselen
;
1878 cp
= memchr(cp
, '/', path
+ len
- cp
);
1882 baselen
= cp
- path
;
1883 strbuf_setlen(&sb
, 0);
1884 strbuf_add(&sb
, path
, baselen
);
1885 if (!is_directory(sb
.buf
))
1887 if (simplify_away(sb
.buf
, sb
.len
, pathspec
))
1889 if (treat_one_path(dir
, NULL
, &sb
, baselen
, pathspec
,
1890 DT_DIR
, NULL
) == path_none
)
1891 break; /* do not recurse into it */
1892 if (len
<= baselen
) {
1894 break; /* finished checking */
1897 strbuf_release(&sb
);
1898 dir
->flags
= old_flags
;
1902 static const char *get_ident_string(void)
1904 static struct strbuf sb
= STRBUF_INIT
;
1909 if (uname(&uts
) < 0)
1910 die_errno(_("failed to get kernel name and information"));
1911 strbuf_addf(&sb
, "Location %s, system %s", get_git_work_tree(),
1916 static int ident_in_untracked(const struct untracked_cache
*uc
)
1919 * Previous git versions may have saved many NUL separated
1920 * strings in the "ident" field, but it is insane to manage
1921 * many locations, so just take care of the first one.
1924 return !strcmp(uc
->ident
.buf
, get_ident_string());
1927 static void set_untracked_ident(struct untracked_cache
*uc
)
1929 strbuf_reset(&uc
->ident
);
1930 strbuf_addstr(&uc
->ident
, get_ident_string());
1933 * This strbuf used to contain a list of NUL separated
1934 * strings, so save NUL too for backward compatibility.
1936 strbuf_addch(&uc
->ident
, 0);
1939 static void new_untracked_cache(struct index_state
*istate
)
1941 struct untracked_cache
*uc
= xcalloc(1, sizeof(*uc
));
1942 strbuf_init(&uc
->ident
, 100);
1943 uc
->exclude_per_dir
= ".gitignore";
1944 /* should be the same flags used by git-status */
1945 uc
->dir_flags
= DIR_SHOW_OTHER_DIRECTORIES
| DIR_HIDE_EMPTY_DIRECTORIES
;
1946 set_untracked_ident(uc
);
1947 istate
->untracked
= uc
;
1948 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1951 void add_untracked_cache(struct index_state
*istate
)
1953 if (!istate
->untracked
) {
1954 new_untracked_cache(istate
);
1956 if (!ident_in_untracked(istate
->untracked
)) {
1957 free_untracked_cache(istate
->untracked
);
1958 new_untracked_cache(istate
);
1963 void remove_untracked_cache(struct index_state
*istate
)
1965 if (istate
->untracked
) {
1966 free_untracked_cache(istate
->untracked
);
1967 istate
->untracked
= NULL
;
1968 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1972 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
1974 const struct pathspec
*pathspec
)
1976 struct untracked_cache_dir
*root
;
1978 if (!dir
->untracked
|| getenv("GIT_DISABLE_UNTRACKED_CACHE"))
1982 * We only support $GIT_DIR/info/exclude and core.excludesfile
1983 * as the global ignore rule files. Any other additions
1984 * (e.g. from command line) invalidate the cache. This
1985 * condition also catches running setup_standard_excludes()
1986 * before setting dir->untracked!
1988 if (dir
->unmanaged_exclude_files
)
1992 * Optimize for the main use case only: whole-tree git
1993 * status. More work involved in treat_leading_path() if we
1994 * use cache on just a subset of the worktree. pathspec
1995 * support could make the matter even worse.
1997 if (base_len
|| (pathspec
&& pathspec
->nr
))
2000 /* Different set of flags may produce different results */
2001 if (dir
->flags
!= dir
->untracked
->dir_flags
||
2003 * See treat_directory(), case index_nonexistent. Without
2004 * this flag, we may need to also cache .git file content
2005 * for the resolve_gitlink_ref() call, which we don't.
2007 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
2008 /* We don't support collecting ignore files */
2009 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
2010 DIR_COLLECT_IGNORED
)))
2014 * If we use .gitignore in the cache and now you change it to
2015 * .gitexclude, everything will go wrong.
2017 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
2018 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
2022 * EXC_CMDL is not considered in the cache. If people set it,
2025 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
2028 if (!ident_in_untracked(dir
->untracked
)) {
2029 warning(_("Untracked cache is disabled on this system or location."));
2033 if (!dir
->untracked
->root
) {
2034 const int len
= sizeof(*dir
->untracked
->root
);
2035 dir
->untracked
->root
= xmalloc(len
);
2036 memset(dir
->untracked
->root
, 0, len
);
2039 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2040 root
= dir
->untracked
->root
;
2041 if (hashcmp(dir
->ss_info_exclude
.sha1
,
2042 dir
->untracked
->ss_info_exclude
.sha1
)) {
2043 invalidate_gitignore(dir
->untracked
, root
);
2044 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2046 if (hashcmp(dir
->ss_excludes_file
.sha1
,
2047 dir
->untracked
->ss_excludes_file
.sha1
)) {
2048 invalidate_gitignore(dir
->untracked
, root
);
2049 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2052 /* Make sure this directory is not dropped out at saving phase */
2057 int read_directory(struct dir_struct
*dir
, const char *path
,
2058 int len
, const struct pathspec
*pathspec
)
2060 struct untracked_cache_dir
*untracked
;
2062 if (has_symlink_leading_path(path
, len
))
2065 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2068 * make sure untracked cache code path is disabled,
2069 * e.g. prep_exclude()
2071 dir
->untracked
= NULL
;
2072 if (!len
|| treat_leading_path(dir
, path
, len
, pathspec
))
2073 read_directory_recursive(dir
, path
, len
, untracked
, 0, pathspec
);
2074 QSORT(dir
->entries
, dir
->nr
, cmp_name
);
2075 QSORT(dir
->ignored
, dir
->ignored_nr
, cmp_name
);
2076 if (dir
->untracked
) {
2077 static struct trace_key trace_untracked_stats
= TRACE_KEY_INIT(UNTRACKED_STATS
);
2078 trace_printf_key(&trace_untracked_stats
,
2079 "node creation: %u\n"
2080 "gitignore invalidation: %u\n"
2081 "directory invalidation: %u\n"
2083 dir
->untracked
->dir_created
,
2084 dir
->untracked
->gitignore_invalidated
,
2085 dir
->untracked
->dir_invalidated
,
2086 dir
->untracked
->dir_opened
);
2087 if (dir
->untracked
== the_index
.untracked
&&
2088 (dir
->untracked
->dir_opened
||
2089 dir
->untracked
->gitignore_invalidated
||
2090 dir
->untracked
->dir_invalidated
))
2091 the_index
.cache_changed
|= UNTRACKED_CHANGED
;
2092 if (dir
->untracked
!= the_index
.untracked
) {
2093 free(dir
->untracked
);
2094 dir
->untracked
= NULL
;
2100 int file_exists(const char *f
)
2103 return lstat(f
, &sb
) == 0;
2106 static int cmp_icase(char a
, char b
)
2111 return toupper(a
) - toupper(b
);
2116 * Given two normalized paths (a trailing slash is ok), if subdir is
2117 * outside dir, return -1. Otherwise return the offset in subdir that
2118 * can be used as relative path to dir.
2120 int dir_inside_of(const char *subdir
, const char *dir
)
2124 assert(dir
&& subdir
&& *dir
&& *subdir
);
2126 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2132 /* hel[p]/me vs hel[l]/yeah */
2133 if (*dir
&& *subdir
)
2137 return !*dir
? offset
: -1; /* same dir */
2139 /* foo/[b]ar vs foo/[] */
2140 if (is_dir_sep(dir
[-1]))
2141 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2143 /* foo[/]bar vs foo[] */
2144 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2147 int is_inside_dir(const char *dir
)
2156 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2161 int is_empty_dir(const char *path
)
2163 DIR *dir
= opendir(path
);
2170 while ((e
= readdir(dir
)) != NULL
)
2171 if (!is_dot_or_dotdot(e
->d_name
)) {
2180 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2184 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2185 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2186 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2187 unsigned char submodule_head
[20];
2189 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2190 !resolve_gitlink_ref(path
->buf
, "HEAD", submodule_head
)) {
2191 /* Do not descend and nuke a nested git work tree. */
2197 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2198 dir
= opendir(path
->buf
);
2200 if (errno
== ENOENT
)
2201 return keep_toplevel
? -1 : 0;
2202 else if (errno
== EACCES
&& !keep_toplevel
)
2204 * An empty dir could be removable even if it
2207 return rmdir(path
->buf
);
2211 strbuf_complete(path
, '/');
2214 while ((e
= readdir(dir
)) != NULL
) {
2216 if (is_dot_or_dotdot(e
->d_name
))
2219 strbuf_setlen(path
, len
);
2220 strbuf_addstr(path
, e
->d_name
);
2221 if (lstat(path
->buf
, &st
)) {
2222 if (errno
== ENOENT
)
2224 * file disappeared, which is what we
2229 } else if (S_ISDIR(st
.st_mode
)) {
2230 if (!remove_dir_recurse(path
, flag
, &kept_down
))
2231 continue; /* happy */
2232 } else if (!only_empty
&&
2233 (!unlink(path
->buf
) || errno
== ENOENT
)) {
2234 continue; /* happy, too */
2237 /* path too long, stat fails, or non-directory still exists */
2243 strbuf_setlen(path
, original_len
);
2244 if (!ret
&& !keep_toplevel
&& !kept_down
)
2245 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
2248 * report the uplevel that it is not an error that we
2249 * did not rmdir() our directory.
2255 int remove_dir_recursively(struct strbuf
*path
, int flag
)
2257 return remove_dir_recurse(path
, flag
, NULL
);
2260 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
2262 void setup_standard_excludes(struct dir_struct
*dir
)
2264 dir
->exclude_per_dir
= ".gitignore";
2266 /* core.excludefile defaulting to $XDG_HOME/git/ignore */
2268 excludes_file
= xdg_config_home("ignore");
2269 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
2270 add_excludes_from_file_1(dir
, excludes_file
,
2271 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
2273 /* per repository user preference */
2274 if (startup_info
->have_repository
) {
2275 const char *path
= git_path_info_exclude();
2276 if (!access_or_warn(path
, R_OK
, 0))
2277 add_excludes_from_file_1(dir
, path
,
2278 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
2282 int remove_path(const char *name
)
2286 if (unlink(name
) && errno
!= ENOENT
&& errno
!= ENOTDIR
)
2289 slash
= strrchr(name
, '/');
2291 char *dirs
= xstrdup(name
);
2292 slash
= dirs
+ (slash
- name
);
2295 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
2302 * Frees memory within dir which was allocated for exclude lists and
2303 * the exclude_stack. Does not free dir itself.
2305 void clear_directory(struct dir_struct
*dir
)
2308 struct exclude_list_group
*group
;
2309 struct exclude_list
*el
;
2310 struct exclude_stack
*stk
;
2312 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
2313 group
= &dir
->exclude_list_group
[i
];
2314 for (j
= 0; j
< group
->nr
; j
++) {
2317 free((char *)el
->src
);
2318 clear_exclude_list(el
);
2323 stk
= dir
->exclude_stack
;
2325 struct exclude_stack
*prev
= stk
->prev
;
2329 strbuf_release(&dir
->basebuf
);
2332 struct ondisk_untracked_cache
{
2333 struct stat_data info_exclude_stat
;
2334 struct stat_data excludes_file_stat
;
2336 unsigned char info_exclude_sha1
[20];
2337 unsigned char excludes_file_sha1
[20];
2338 char exclude_per_dir
[FLEX_ARRAY
];
2341 #define ouc_size(len) (offsetof(struct ondisk_untracked_cache, exclude_per_dir) + len + 1)
2344 int index
; /* number of written untracked_cache_dir */
2345 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
2346 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
2347 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
2349 struct strbuf sb_stat
;
2350 struct strbuf sb_sha1
;
2353 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
2355 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
2356 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
2357 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
2358 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
2359 to
->sd_dev
= htonl(from
->sd_dev
);
2360 to
->sd_ino
= htonl(from
->sd_ino
);
2361 to
->sd_uid
= htonl(from
->sd_uid
);
2362 to
->sd_gid
= htonl(from
->sd_gid
);
2363 to
->sd_size
= htonl(from
->sd_size
);
2366 static void write_one_dir(struct untracked_cache_dir
*untracked
,
2367 struct write_data
*wd
)
2369 struct stat_data stat_data
;
2370 struct strbuf
*out
= &wd
->out
;
2371 unsigned char intbuf
[16];
2372 unsigned int intlen
, value
;
2373 int i
= wd
->index
++;
2376 * untracked_nr should be reset whenever valid is clear, but
2379 if (!untracked
->valid
) {
2380 untracked
->untracked_nr
= 0;
2381 untracked
->check_only
= 0;
2384 if (untracked
->check_only
)
2385 ewah_set(wd
->check_only
, i
);
2386 if (untracked
->valid
) {
2387 ewah_set(wd
->valid
, i
);
2388 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
2389 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
2391 if (!is_null_sha1(untracked
->exclude_sha1
)) {
2392 ewah_set(wd
->sha1_valid
, i
);
2393 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_sha1
, 20);
2396 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
2397 strbuf_add(out
, intbuf
, intlen
);
2399 /* skip non-recurse directories */
2400 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
2401 if (untracked
->dirs
[i
]->recurse
)
2403 intlen
= encode_varint(value
, intbuf
);
2404 strbuf_add(out
, intbuf
, intlen
);
2406 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
2408 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
2409 strbuf_add(out
, untracked
->untracked
[i
],
2410 strlen(untracked
->untracked
[i
]) + 1);
2412 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
2413 if (untracked
->dirs
[i
]->recurse
)
2414 write_one_dir(untracked
->dirs
[i
], wd
);
2417 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
2419 struct ondisk_untracked_cache
*ouc
;
2420 struct write_data wd
;
2421 unsigned char varbuf
[16];
2423 size_t len
= strlen(untracked
->exclude_per_dir
);
2425 FLEX_ALLOC_MEM(ouc
, exclude_per_dir
, untracked
->exclude_per_dir
, len
);
2426 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
2427 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
2428 hashcpy(ouc
->info_exclude_sha1
, untracked
->ss_info_exclude
.sha1
);
2429 hashcpy(ouc
->excludes_file_sha1
, untracked
->ss_excludes_file
.sha1
);
2430 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
2432 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
2433 strbuf_add(out
, varbuf
, varint_len
);
2434 strbuf_addbuf(out
, &untracked
->ident
);
2436 strbuf_add(out
, ouc
, ouc_size(len
));
2440 if (!untracked
->root
) {
2441 varint_len
= encode_varint(0, varbuf
);
2442 strbuf_add(out
, varbuf
, varint_len
);
2447 wd
.check_only
= ewah_new();
2448 wd
.valid
= ewah_new();
2449 wd
.sha1_valid
= ewah_new();
2450 strbuf_init(&wd
.out
, 1024);
2451 strbuf_init(&wd
.sb_stat
, 1024);
2452 strbuf_init(&wd
.sb_sha1
, 1024);
2453 write_one_dir(untracked
->root
, &wd
);
2455 varint_len
= encode_varint(wd
.index
, varbuf
);
2456 strbuf_add(out
, varbuf
, varint_len
);
2457 strbuf_addbuf(out
, &wd
.out
);
2458 ewah_serialize_strbuf(wd
.valid
, out
);
2459 ewah_serialize_strbuf(wd
.check_only
, out
);
2460 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
2461 strbuf_addbuf(out
, &wd
.sb_stat
);
2462 strbuf_addbuf(out
, &wd
.sb_sha1
);
2463 strbuf_addch(out
, '\0'); /* safe guard for string lists */
2465 ewah_free(wd
.valid
);
2466 ewah_free(wd
.check_only
);
2467 ewah_free(wd
.sha1_valid
);
2468 strbuf_release(&wd
.out
);
2469 strbuf_release(&wd
.sb_stat
);
2470 strbuf_release(&wd
.sb_sha1
);
2473 static void free_untracked(struct untracked_cache_dir
*ucd
)
2478 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
2479 free_untracked(ucd
->dirs
[i
]);
2480 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
2481 free(ucd
->untracked
[i
]);
2482 free(ucd
->untracked
);
2487 void free_untracked_cache(struct untracked_cache
*uc
)
2490 free_untracked(uc
->root
);
2496 struct untracked_cache_dir
**ucd
;
2497 struct ewah_bitmap
*check_only
;
2498 struct ewah_bitmap
*valid
;
2499 struct ewah_bitmap
*sha1_valid
;
2500 const unsigned char *data
;
2501 const unsigned char *end
;
2504 static void stat_data_from_disk(struct stat_data
*to
, const struct stat_data
*from
)
2506 to
->sd_ctime
.sec
= get_be32(&from
->sd_ctime
.sec
);
2507 to
->sd_ctime
.nsec
= get_be32(&from
->sd_ctime
.nsec
);
2508 to
->sd_mtime
.sec
= get_be32(&from
->sd_mtime
.sec
);
2509 to
->sd_mtime
.nsec
= get_be32(&from
->sd_mtime
.nsec
);
2510 to
->sd_dev
= get_be32(&from
->sd_dev
);
2511 to
->sd_ino
= get_be32(&from
->sd_ino
);
2512 to
->sd_uid
= get_be32(&from
->sd_uid
);
2513 to
->sd_gid
= get_be32(&from
->sd_gid
);
2514 to
->sd_size
= get_be32(&from
->sd_size
);
2517 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
2518 struct read_data
*rd
)
2520 struct untracked_cache_dir ud
, *untracked
;
2521 const unsigned char *next
, *data
= rd
->data
, *end
= rd
->end
;
2525 memset(&ud
, 0, sizeof(ud
));
2528 value
= decode_varint(&next
);
2532 ud
.untracked_alloc
= value
;
2533 ud
.untracked_nr
= value
;
2534 if (ud
.untracked_nr
)
2535 ALLOC_ARRAY(ud
.untracked
, ud
.untracked_nr
);
2539 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&next
);
2542 ALLOC_ARRAY(ud
.dirs
, ud
.dirs_nr
);
2545 len
= strlen((const char *)data
);
2546 next
= data
+ len
+ 1;
2549 *untracked_
= untracked
= xmalloc(st_add(sizeof(*untracked
), len
));
2550 memcpy(untracked
, &ud
, sizeof(ud
));
2551 memcpy(untracked
->name
, data
, len
+ 1);
2554 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
2555 len
= strlen((const char *)data
);
2556 next
= data
+ len
+ 1;
2559 untracked
->untracked
[i
] = xstrdup((const char*)data
);
2563 rd
->ucd
[rd
->index
++] = untracked
;
2566 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
2567 len
= read_one_dir(untracked
->dirs
+ i
, rd
);
2574 static void set_check_only(size_t pos
, void *cb
)
2576 struct read_data
*rd
= cb
;
2577 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2581 static void read_stat(size_t pos
, void *cb
)
2583 struct read_data
*rd
= cb
;
2584 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2585 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
2586 rd
->data
= rd
->end
+ 1;
2589 stat_data_from_disk(&ud
->stat_data
, (struct stat_data
*)rd
->data
);
2590 rd
->data
+= sizeof(struct stat_data
);
2594 static void read_sha1(size_t pos
, void *cb
)
2596 struct read_data
*rd
= cb
;
2597 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2598 if (rd
->data
+ 20 > rd
->end
) {
2599 rd
->data
= rd
->end
+ 1;
2602 hashcpy(ud
->exclude_sha1
, rd
->data
);
2606 static void load_sha1_stat(struct sha1_stat
*sha1_stat
,
2607 const struct stat_data
*stat
,
2608 const unsigned char *sha1
)
2610 stat_data_from_disk(&sha1_stat
->stat
, stat
);
2611 hashcpy(sha1_stat
->sha1
, sha1
);
2612 sha1_stat
->valid
= 1;
2615 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
2617 const struct ondisk_untracked_cache
*ouc
;
2618 struct untracked_cache
*uc
;
2619 struct read_data rd
;
2620 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
2624 if (sz
<= 1 || end
[-1] != '\0')
2628 ident_len
= decode_varint(&next
);
2629 if (next
+ ident_len
> end
)
2631 ident
= (const char *)next
;
2634 ouc
= (const struct ondisk_untracked_cache
*)next
;
2635 if (next
+ ouc_size(0) > end
)
2638 uc
= xcalloc(1, sizeof(*uc
));
2639 strbuf_init(&uc
->ident
, ident_len
);
2640 strbuf_add(&uc
->ident
, ident
, ident_len
);
2641 load_sha1_stat(&uc
->ss_info_exclude
, &ouc
->info_exclude_stat
,
2642 ouc
->info_exclude_sha1
);
2643 load_sha1_stat(&uc
->ss_excludes_file
, &ouc
->excludes_file_stat
,
2644 ouc
->excludes_file_sha1
);
2645 uc
->dir_flags
= get_be32(&ouc
->dir_flags
);
2646 uc
->exclude_per_dir
= xstrdup(ouc
->exclude_per_dir
);
2647 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
2648 next
+= ouc_size(strlen(ouc
->exclude_per_dir
));
2652 len
= decode_varint(&next
);
2653 if (next
> end
|| len
== 0)
2656 rd
.valid
= ewah_new();
2657 rd
.check_only
= ewah_new();
2658 rd
.sha1_valid
= ewah_new();
2662 ALLOC_ARRAY(rd
.ucd
, len
);
2664 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
2668 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
2673 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
2678 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
2682 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
2683 rd
.data
= next
+ len
;
2684 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
2685 ewah_each_bit(rd
.sha1_valid
, read_sha1
, &rd
);
2690 ewah_free(rd
.valid
);
2691 ewah_free(rd
.check_only
);
2692 ewah_free(rd
.sha1_valid
);
2695 free_untracked_cache(uc
);
2701 static void invalidate_one_directory(struct untracked_cache
*uc
,
2702 struct untracked_cache_dir
*ucd
)
2704 uc
->dir_invalidated
++;
2706 ucd
->untracked_nr
= 0;
2710 * Normally when an entry is added or removed from a directory,
2711 * invalidating that directory is enough. No need to touch its
2712 * ancestors. When a directory is shown as "foo/bar/" in git-status
2713 * however, deleting or adding an entry may have cascading effect.
2715 * Say the "foo/bar/file" has become untracked, we need to tell the
2716 * untracked_cache_dir of "foo" that "bar/" is not an untracked
2717 * directory any more (because "bar" is managed by foo as an untracked
2720 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
2721 * was the last untracked entry in the entire "foo", we should show
2722 * "foo/" instead. Which means we have to invalidate past "bar" up to
2725 * This function traverses all directories from root to leaf. If there
2726 * is a chance of one of the above cases happening, we invalidate back
2727 * to root. Otherwise we just invalidate the leaf. There may be a more
2728 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
2729 * detect these cases and avoid unnecessary invalidation, for example,
2730 * checking for the untracked entry named "bar/" in "foo", but for now
2731 * stick to something safe and simple.
2733 static int invalidate_one_component(struct untracked_cache
*uc
,
2734 struct untracked_cache_dir
*dir
,
2735 const char *path
, int len
)
2737 const char *rest
= strchr(path
, '/');
2740 int component_len
= rest
- path
;
2741 struct untracked_cache_dir
*d
=
2742 lookup_untracked(uc
, dir
, path
, component_len
);
2744 invalidate_one_component(uc
, d
, rest
+ 1,
2745 len
- (component_len
+ 1));
2747 invalidate_one_directory(uc
, dir
);
2751 invalidate_one_directory(uc
, dir
);
2752 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
2755 void untracked_cache_invalidate_path(struct index_state
*istate
,
2758 if (!istate
->untracked
|| !istate
->untracked
->root
)
2760 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
2761 path
, strlen(path
));
2764 void untracked_cache_remove_from_index(struct index_state
*istate
,
2767 untracked_cache_invalidate_path(istate
, path
);
2770 void untracked_cache_add_to_index(struct index_state
*istate
,
2773 untracked_cache_invalidate_path(istate
, path
);
2776 /* Update gitfile and core.worktree setting to connect work tree and git dir */
2777 void connect_work_tree_and_git_dir(const char *work_tree_
, const char *git_dir_
)
2779 struct strbuf gitfile_sb
= STRBUF_INIT
;
2780 struct strbuf cfg_sb
= STRBUF_INIT
;
2781 struct strbuf rel_path
= STRBUF_INIT
;
2782 char *git_dir
, *work_tree
;
2784 /* Prepare .git file */
2785 strbuf_addf(&gitfile_sb
, "%s/.git", work_tree_
);
2786 if (safe_create_leading_directories_const(gitfile_sb
.buf
))
2787 die(_("could not create directories for %s"), gitfile_sb
.buf
);
2789 /* Prepare config file */
2790 strbuf_addf(&cfg_sb
, "%s/config", git_dir_
);
2791 if (safe_create_leading_directories_const(cfg_sb
.buf
))
2792 die(_("could not create directories for %s"), cfg_sb
.buf
);
2794 git_dir
= real_pathdup(git_dir_
, 1);
2795 work_tree
= real_pathdup(work_tree_
, 1);
2797 /* Write .git file */
2798 write_file(gitfile_sb
.buf
, "gitdir: %s",
2799 relative_path(git_dir
, work_tree
, &rel_path
));
2800 /* Update core.worktree setting */
2801 git_config_set_in_file(cfg_sb
.buf
, "core.worktree",
2802 relative_path(work_tree
, git_dir
, &rel_path
));
2804 strbuf_release(&gitfile_sb
);
2805 strbuf_release(&cfg_sb
);
2806 strbuf_release(&rel_path
);
2812 * Migrate the git directory of the given path from old_git_dir to new_git_dir.
2814 void relocate_gitdir(const char *path
, const char *old_git_dir
, const char *new_git_dir
)
2816 if (rename(old_git_dir
, new_git_dir
) < 0)
2817 die_errno(_("could not migrate git directory from '%s' to '%s'"),
2818 old_git_dir
, new_git_dir
);
2820 connect_work_tree_and_git_dir(path
, new_git_dir
);