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
16 #include "wildmatch.h"
20 #include "ewah/ewok.h"
21 #include "fsmonitor.h"
24 * Tells read_directory_recursive how a file or directory should be treated.
25 * Values are ordered by significance, e.g. if a directory contains both
26 * excluded and untracked files, it is listed as untracked because
27 * path_untracked > path_excluded.
37 * Support data structure for our opendir/readdir/closedir wrappers
41 struct untracked_cache_dir
*untracked
;
47 struct untracked_cache_dir
*ucd
;
50 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
51 struct index_state
*istate
, const char *path
, int len
,
52 struct untracked_cache_dir
*untracked
,
53 int check_only
, const struct pathspec
*pathspec
);
54 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
55 const char *path
, int len
);
57 int count_slashes(const char *s
)
66 int fspathcmp(const char *a
, const char *b
)
68 return ignore_case
? strcasecmp(a
, b
) : strcmp(a
, b
);
71 int fspathncmp(const char *a
, const char *b
, size_t count
)
73 return ignore_case
? strncasecmp(a
, b
, count
) : strncmp(a
, b
, count
);
76 int git_fnmatch(const struct pathspec_item
*item
,
77 const char *pattern
, const char *string
,
81 if (ps_strncmp(item
, pattern
, string
, prefix
))
86 if (item
->flags
& PATHSPEC_ONESTAR
) {
87 int pattern_len
= strlen(++pattern
);
88 int string_len
= strlen(string
);
89 return string_len
< pattern_len
||
90 ps_strcmp(item
, pattern
,
91 string
+ string_len
- pattern_len
);
93 if (item
->magic
& PATHSPEC_GLOB
)
94 return wildmatch(pattern
, string
,
96 (item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0));
98 /* wildmatch has not learned no FNM_PATHNAME mode yet */
99 return wildmatch(pattern
, string
,
100 item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0);
103 static int fnmatch_icase_mem(const char *pattern
, int patternlen
,
104 const char *string
, int stringlen
,
108 struct strbuf pat_buf
= STRBUF_INIT
;
109 struct strbuf str_buf
= STRBUF_INIT
;
110 const char *use_pat
= pattern
;
111 const char *use_str
= string
;
113 if (pattern
[patternlen
]) {
114 strbuf_add(&pat_buf
, pattern
, patternlen
);
115 use_pat
= pat_buf
.buf
;
117 if (string
[stringlen
]) {
118 strbuf_add(&str_buf
, string
, stringlen
);
119 use_str
= str_buf
.buf
;
123 flags
|= WM_CASEFOLD
;
124 match_status
= wildmatch(use_pat
, use_str
, flags
);
126 strbuf_release(&pat_buf
);
127 strbuf_release(&str_buf
);
132 static size_t common_prefix_len(const struct pathspec
*pathspec
)
138 * ":(icase)path" is treated as a pathspec full of
139 * wildcard. In other words, only prefix is considered common
140 * prefix. If the pathspec is abc/foo abc/bar, running in
141 * subdir xyz, the common prefix is still xyz, not xuz/abc as
144 GUARD_PATHSPEC(pathspec
,
153 for (n
= 0; n
< pathspec
->nr
; n
++) {
154 size_t i
= 0, len
= 0, item_len
;
155 if (pathspec
->items
[n
].magic
& PATHSPEC_EXCLUDE
)
157 if (pathspec
->items
[n
].magic
& PATHSPEC_ICASE
)
158 item_len
= pathspec
->items
[n
].prefix
;
160 item_len
= pathspec
->items
[n
].nowildcard_len
;
161 while (i
< item_len
&& (n
== 0 || i
< max
)) {
162 char c
= pathspec
->items
[n
].match
[i
];
163 if (c
!= pathspec
->items
[0].match
[i
])
169 if (n
== 0 || len
< max
) {
179 * Returns a copy of the longest leading path common among all
182 char *common_prefix(const struct pathspec
*pathspec
)
184 unsigned long len
= common_prefix_len(pathspec
);
186 return len
? xmemdupz(pathspec
->items
[0].match
, len
) : NULL
;
189 int fill_directory(struct dir_struct
*dir
,
190 struct index_state
*istate
,
191 const struct pathspec
*pathspec
)
197 * Calculate common prefix for the pathspec, and
198 * use that to optimize the directory walk
200 prefix_len
= common_prefix_len(pathspec
);
201 prefix
= prefix_len
? pathspec
->items
[0].match
: "";
203 /* Read the directory and prune it */
204 read_directory(dir
, istate
, prefix
, prefix_len
, pathspec
);
209 int within_depth(const char *name
, int namelen
,
210 int depth
, int max_depth
)
212 const char *cp
= name
, *cpe
= name
+ namelen
;
218 if (depth
> max_depth
)
224 #define DO_MATCH_EXCLUDE (1<<0)
225 #define DO_MATCH_DIRECTORY (1<<1)
226 #define DO_MATCH_SUBMODULE (1<<2)
228 static int match_attrs(const char *name
, int namelen
,
229 const struct pathspec_item
*item
)
233 git_check_attr(name
, item
->attr_check
);
234 for (i
= 0; i
< item
->attr_match_nr
; i
++) {
237 enum attr_match_mode match_mode
;
239 value
= item
->attr_check
->items
[i
].value
;
240 match_mode
= item
->attr_match
[i
].match_mode
;
242 if (ATTR_TRUE(value
))
243 matched
= (match_mode
== MATCH_SET
);
244 else if (ATTR_FALSE(value
))
245 matched
= (match_mode
== MATCH_UNSET
);
246 else if (ATTR_UNSET(value
))
247 matched
= (match_mode
== MATCH_UNSPECIFIED
);
249 matched
= (match_mode
== MATCH_VALUE
&&
250 !strcmp(item
->attr_match
[i
].value
, value
));
259 * Does 'match' match the given name?
260 * A match is found if
262 * (1) the 'match' string is leading directory of 'name', or
263 * (2) the 'match' string is a wildcard and matches 'name', or
264 * (3) the 'match' string is exactly the same as 'name'.
266 * and the return value tells which case it was.
268 * It returns 0 when there is no match.
270 static int match_pathspec_item(const struct pathspec_item
*item
, int prefix
,
271 const char *name
, int namelen
, unsigned flags
)
273 /* name/namelen has prefix cut off by caller */
274 const char *match
= item
->match
+ prefix
;
275 int matchlen
= item
->len
- prefix
;
278 * The normal call pattern is:
279 * 1. prefix = common_prefix_len(ps);
280 * 2. prune something, or fill_directory
281 * 3. match_pathspec()
283 * 'prefix' at #1 may be shorter than the command's prefix and
284 * it's ok for #2 to match extra files. Those extras will be
287 * Suppose the pathspec is 'foo' and '../bar' running from
288 * subdir 'xyz'. The common prefix at #1 will be empty, thanks
289 * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The
290 * user does not want XYZ/foo, only the "foo" part should be
291 * case-insensitive. We need to filter out XYZ/foo here. In
292 * other words, we do not trust the caller on comparing the
293 * prefix part when :(icase) is involved. We do exact
294 * comparison ourselves.
296 * Normally the caller (common_prefix_len() in fact) does
297 * _exact_ matching on name[-prefix+1..-1] and we do not need
298 * to check that part. Be defensive and check it anyway, in
299 * case common_prefix_len is changed, or a new caller is
300 * introduced that does not use common_prefix_len.
302 * If the penalty turns out too high when prefix is really
303 * long, maybe change it to
304 * strncmp(match, name, item->prefix - prefix)
306 if (item
->prefix
&& (item
->magic
& PATHSPEC_ICASE
) &&
307 strncmp(item
->match
, name
- prefix
, item
->prefix
))
310 if (item
->attr_match_nr
&& !match_attrs(name
, namelen
, item
))
313 /* If the match was just the prefix, we matched */
315 return MATCHED_RECURSIVELY
;
317 if (matchlen
<= namelen
&& !ps_strncmp(item
, match
, name
, matchlen
)) {
318 if (matchlen
== namelen
)
319 return MATCHED_EXACTLY
;
321 if (match
[matchlen
-1] == '/' || name
[matchlen
] == '/')
322 return MATCHED_RECURSIVELY
;
323 } else if ((flags
& DO_MATCH_DIRECTORY
) &&
324 match
[matchlen
- 1] == '/' &&
325 namelen
== matchlen
- 1 &&
326 !ps_strncmp(item
, match
, name
, namelen
))
327 return MATCHED_EXACTLY
;
329 if (item
->nowildcard_len
< item
->len
&&
330 !git_fnmatch(item
, match
, name
,
331 item
->nowildcard_len
- prefix
))
332 return MATCHED_FNMATCH
;
334 /* Perform checks to see if "name" is a super set of the pathspec */
335 if (flags
& DO_MATCH_SUBMODULE
) {
336 /* name is a literal prefix of the pathspec */
337 if ((namelen
< matchlen
) &&
338 (match
[namelen
] == '/') &&
339 !ps_strncmp(item
, match
, name
, namelen
))
340 return MATCHED_RECURSIVELY
;
342 /* name" doesn't match up to the first wild character */
343 if (item
->nowildcard_len
< item
->len
&&
344 ps_strncmp(item
, match
, name
,
345 item
->nowildcard_len
- prefix
))
349 * Here is where we would perform a wildmatch to check if
350 * "name" can be matched as a directory (or a prefix) against
351 * the pathspec. Since wildmatch doesn't have this capability
352 * at the present we have to punt and say that it is a match,
353 * potentially returning a false positive
354 * The submodules themselves will be able to perform more
355 * accurate matching to determine if the pathspec matches.
357 return MATCHED_RECURSIVELY
;
364 * Given a name and a list of pathspecs, returns the nature of the
365 * closest (i.e. most specific) match of the name to any of the
368 * The caller typically calls this multiple times with the same
369 * pathspec and seen[] array but with different name/namelen
370 * (e.g. entries from the index) and is interested in seeing if and
371 * how each pathspec matches all the names it calls this function
372 * with. A mark is left in the seen[] array for each pathspec element
373 * indicating the closest type of match that element achieved, so if
374 * seen[n] remains zero after multiple invocations, that means the nth
375 * pathspec did not match any names, which could indicate that the
376 * user mistyped the nth pathspec.
378 static int do_match_pathspec(const struct pathspec
*ps
,
379 const char *name
, int namelen
,
380 int prefix
, char *seen
,
383 int i
, retval
= 0, exclude
= flags
& DO_MATCH_EXCLUDE
;
395 if (!ps
->recursive
||
396 !(ps
->magic
& PATHSPEC_MAXDEPTH
) ||
398 return MATCHED_RECURSIVELY
;
400 if (within_depth(name
, namelen
, 0, ps
->max_depth
))
401 return MATCHED_EXACTLY
;
409 for (i
= ps
->nr
- 1; i
>= 0; i
--) {
412 if ((!exclude
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
) ||
413 ( exclude
&& !(ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)))
416 if (seen
&& seen
[i
] == MATCHED_EXACTLY
)
419 * Make exclude patterns optional and never report
420 * "pathspec ':(exclude)foo' matches no files"
422 if (seen
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)
423 seen
[i
] = MATCHED_FNMATCH
;
424 how
= match_pathspec_item(ps
->items
+i
, prefix
, name
,
427 (ps
->magic
& PATHSPEC_MAXDEPTH
) &&
428 ps
->max_depth
!= -1 &&
429 how
&& how
!= MATCHED_FNMATCH
) {
430 int len
= ps
->items
[i
].len
;
431 if (name
[len
] == '/')
433 if (within_depth(name
+len
, namelen
-len
, 0, ps
->max_depth
))
434 how
= MATCHED_EXACTLY
;
441 if (seen
&& seen
[i
] < how
)
448 int match_pathspec(const struct pathspec
*ps
,
449 const char *name
, int namelen
,
450 int prefix
, char *seen
, int is_dir
)
452 int positive
, negative
;
453 unsigned flags
= is_dir
? DO_MATCH_DIRECTORY
: 0;
454 positive
= do_match_pathspec(ps
, name
, namelen
,
455 prefix
, seen
, flags
);
456 if (!(ps
->magic
& PATHSPEC_EXCLUDE
) || !positive
)
458 negative
= do_match_pathspec(ps
, name
, namelen
,
460 flags
| DO_MATCH_EXCLUDE
);
461 return negative
? 0 : positive
;
465 * Check if a submodule is a superset of the pathspec
467 int submodule_path_match(const struct pathspec
*ps
,
468 const char *submodule_name
,
471 int matched
= do_match_pathspec(ps
, submodule_name
,
472 strlen(submodule_name
),
479 int report_path_error(const char *ps_matched
,
480 const struct pathspec
*pathspec
,
484 * Make sure all pathspec matched; otherwise it is an error.
487 for (num
= 0; num
< pathspec
->nr
; num
++) {
488 int other
, found_dup
;
493 * The caller might have fed identical pathspec
494 * twice. Do not barf on such a mistake.
495 * FIXME: parse_pathspec should have eliminated
496 * duplicate pathspec.
498 for (found_dup
= other
= 0;
499 !found_dup
&& other
< pathspec
->nr
;
501 if (other
== num
|| !ps_matched
[other
])
503 if (!strcmp(pathspec
->items
[other
].original
,
504 pathspec
->items
[num
].original
))
506 * Ok, we have a match already.
513 error("pathspec '%s' did not match any file(s) known to git.",
514 pathspec
->items
[num
].original
);
521 * Return the length of the "simple" part of a path match limiter.
523 int simple_length(const char *match
)
528 unsigned char c
= *match
++;
530 if (c
== '\0' || is_glob_special(c
))
535 int no_wildcard(const char *string
)
537 return string
[simple_length(string
)] == '\0';
540 void parse_exclude_pattern(const char **pattern
,
545 const char *p
= *pattern
;
550 *flags
|= EXC_FLAG_NEGATIVE
;
554 if (len
&& p
[len
- 1] == '/') {
556 *flags
|= EXC_FLAG_MUSTBEDIR
;
558 for (i
= 0; i
< len
; i
++) {
563 *flags
|= EXC_FLAG_NODIR
;
564 *nowildcardlen
= simple_length(p
);
566 * we should have excluded the trailing slash from 'p' too,
567 * but that's one more allocation. Instead just make sure
568 * nowildcardlen does not exceed real patternlen
570 if (*nowildcardlen
> len
)
571 *nowildcardlen
= len
;
572 if (*p
== '*' && no_wildcard(p
+ 1))
573 *flags
|= EXC_FLAG_ENDSWITH
;
578 void add_exclude(const char *string
, const char *base
,
579 int baselen
, struct exclude_list
*el
, int srcpos
)
586 parse_exclude_pattern(&string
, &patternlen
, &flags
, &nowildcardlen
);
587 if (flags
& EXC_FLAG_MUSTBEDIR
) {
588 FLEXPTR_ALLOC_MEM(x
, pattern
, string
, patternlen
);
590 x
= xmalloc(sizeof(*x
));
593 x
->patternlen
= patternlen
;
594 x
->nowildcardlen
= nowildcardlen
;
596 x
->baselen
= baselen
;
599 ALLOC_GROW(el
->excludes
, el
->nr
+ 1, el
->alloc
);
600 el
->excludes
[el
->nr
++] = x
;
604 static void *read_skip_worktree_file_from_index(const struct index_state
*istate
,
605 const char *path
, size_t *size
,
606 struct sha1_stat
*sha1_stat
)
610 enum object_type type
;
614 pos
= index_name_pos(istate
, path
, len
);
617 if (!ce_skip_worktree(istate
->cache
[pos
]))
619 data
= read_sha1_file(istate
->cache
[pos
]->oid
.hash
, &type
, &sz
);
620 if (!data
|| type
!= OBJ_BLOB
) {
626 memset(&sha1_stat
->stat
, 0, sizeof(sha1_stat
->stat
));
627 hashcpy(sha1_stat
->sha1
, istate
->cache
[pos
]->oid
.hash
);
633 * Frees memory within el which was allocated for exclude patterns and
634 * the file buffer. Does not free el itself.
636 void clear_exclude_list(struct exclude_list
*el
)
640 for (i
= 0; i
< el
->nr
; i
++)
641 free(el
->excludes
[i
]);
645 memset(el
, 0, sizeof(*el
));
648 static void trim_trailing_spaces(char *buf
)
650 char *p
, *last_space
= NULL
;
652 for (p
= buf
; *p
; p
++)
672 * Given a subdirectory name and "dir" of the current directory,
673 * search the subdir in "dir" and return it, or create a new one if it
674 * does not exist in "dir".
676 * If "name" has the trailing slash, it'll be excluded in the search.
678 static struct untracked_cache_dir
*lookup_untracked(struct untracked_cache
*uc
,
679 struct untracked_cache_dir
*dir
,
680 const char *name
, int len
)
683 struct untracked_cache_dir
*d
;
686 if (len
&& name
[len
- 1] == '/')
690 while (last
> first
) {
691 int cmp
, next
= (last
+ first
) >> 1;
693 cmp
= strncmp(name
, d
->name
, len
);
694 if (!cmp
&& strlen(d
->name
) > len
)
706 FLEX_ALLOC_MEM(d
, name
, name
, len
);
708 ALLOC_GROW(dir
->dirs
, dir
->dirs_nr
+ 1, dir
->dirs_alloc
);
709 memmove(dir
->dirs
+ first
+ 1, dir
->dirs
+ first
,
710 (dir
->dirs_nr
- first
) * sizeof(*dir
->dirs
));
712 dir
->dirs
[first
] = d
;
716 static void do_invalidate_gitignore(struct untracked_cache_dir
*dir
)
720 dir
->untracked_nr
= 0;
721 for (i
= 0; i
< dir
->dirs_nr
; i
++)
722 do_invalidate_gitignore(dir
->dirs
[i
]);
725 static void invalidate_gitignore(struct untracked_cache
*uc
,
726 struct untracked_cache_dir
*dir
)
728 uc
->gitignore_invalidated
++;
729 do_invalidate_gitignore(dir
);
732 static void invalidate_directory(struct untracked_cache
*uc
,
733 struct untracked_cache_dir
*dir
)
736 uc
->dir_invalidated
++;
738 dir
->untracked_nr
= 0;
739 for (i
= 0; i
< dir
->dirs_nr
; i
++)
740 dir
->dirs
[i
]->recurse
= 0;
744 * Given a file with name "fname", read it (either from disk, or from
745 * an index if 'istate' is non-null), parse it and store the
746 * exclude rules in "el".
748 * If "ss" is not NULL, compute SHA-1 of the exclude file and fill
749 * stat data from disk (only valid if add_excludes returns zero). If
750 * ss_valid is non-zero, "ss" must contain good value as input.
752 static int add_excludes(const char *fname
, const char *base
, int baselen
,
753 struct exclude_list
*el
,
754 struct index_state
*istate
,
755 struct sha1_stat
*sha1_stat
)
758 int fd
, i
, lineno
= 1;
762 fd
= open(fname
, O_RDONLY
);
763 if (fd
< 0 || fstat(fd
, &st
) < 0) {
765 warn_on_fopen_errors(fname
);
769 (buf
= read_skip_worktree_file_from_index(istate
, fname
, &size
, sha1_stat
)) == NULL
)
775 if (buf
[size
-1] != '\n') {
776 buf
= xrealloc(buf
, st_add(size
, 1));
780 size
= xsize_t(st
.st_size
);
783 fill_stat_data(&sha1_stat
->stat
, &st
);
784 hashcpy(sha1_stat
->sha1
, EMPTY_BLOB_SHA1_BIN
);
785 sha1_stat
->valid
= 1;
790 buf
= xmallocz(size
);
791 if (read_in_full(fd
, buf
, size
) != size
) {
800 if (sha1_stat
->valid
&&
801 !match_stat_data_racy(istate
, &sha1_stat
->stat
, &st
))
802 ; /* no content change, ss->sha1 still good */
804 (pos
= index_name_pos(istate
, fname
, strlen(fname
))) >= 0 &&
805 !ce_stage(istate
->cache
[pos
]) &&
806 ce_uptodate(istate
->cache
[pos
]) &&
807 !would_convert_to_git(istate
, fname
))
808 hashcpy(sha1_stat
->sha1
,
809 istate
->cache
[pos
]->oid
.hash
);
811 hash_sha1_file(buf
, size
, "blob", sha1_stat
->sha1
);
812 fill_stat_data(&sha1_stat
->stat
, &st
);
813 sha1_stat
->valid
= 1;
819 if (skip_utf8_bom(&buf
, size
))
820 size
-= buf
- el
->filebuf
;
824 for (i
= 0; i
< size
; i
++) {
825 if (buf
[i
] == '\n') {
826 if (entry
!= buf
+ i
&& entry
[0] != '#') {
827 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
828 trim_trailing_spaces(entry
);
829 add_exclude(entry
, base
, baselen
, el
, lineno
);
838 int add_excludes_from_file_to_list(const char *fname
, const char *base
,
839 int baselen
, struct exclude_list
*el
,
840 struct index_state
*istate
)
842 return add_excludes(fname
, base
, baselen
, el
, istate
, NULL
);
845 struct exclude_list
*add_exclude_list(struct dir_struct
*dir
,
846 int group_type
, const char *src
)
848 struct exclude_list
*el
;
849 struct exclude_list_group
*group
;
851 group
= &dir
->exclude_list_group
[group_type
];
852 ALLOC_GROW(group
->el
, group
->nr
+ 1, group
->alloc
);
853 el
= &group
->el
[group
->nr
++];
854 memset(el
, 0, sizeof(*el
));
860 * Used to set up core.excludesfile and .git/info/exclude lists.
862 static void add_excludes_from_file_1(struct dir_struct
*dir
, const char *fname
,
863 struct sha1_stat
*sha1_stat
)
865 struct exclude_list
*el
;
867 * catch setup_standard_excludes() that's called before
868 * dir->untracked is assigned. That function behaves
869 * differently when dir->untracked is non-NULL.
872 dir
->unmanaged_exclude_files
++;
873 el
= add_exclude_list(dir
, EXC_FILE
, fname
);
874 if (add_excludes(fname
, "", 0, el
, NULL
, sha1_stat
) < 0)
875 die("cannot use %s as an exclude file", fname
);
878 void add_excludes_from_file(struct dir_struct
*dir
, const char *fname
)
880 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
881 add_excludes_from_file_1(dir
, fname
, NULL
);
884 int match_basename(const char *basename
, int basenamelen
,
885 const char *pattern
, int prefix
, int patternlen
,
888 if (prefix
== patternlen
) {
889 if (patternlen
== basenamelen
&&
890 !fspathncmp(pattern
, basename
, basenamelen
))
892 } else if (flags
& EXC_FLAG_ENDSWITH
) {
893 /* "*literal" matching against "fooliteral" */
894 if (patternlen
- 1 <= basenamelen
&&
895 !fspathncmp(pattern
+ 1,
896 basename
+ basenamelen
- (patternlen
- 1),
900 if (fnmatch_icase_mem(pattern
, patternlen
,
901 basename
, basenamelen
,
908 int match_pathname(const char *pathname
, int pathlen
,
909 const char *base
, int baselen
,
910 const char *pattern
, int prefix
, int patternlen
,
917 * match with FNM_PATHNAME; the pattern has base implicitly
920 if (*pattern
== '/') {
927 * baselen does not count the trailing slash. base[] may or
928 * may not end with a trailing slash though.
930 if (pathlen
< baselen
+ 1 ||
931 (baselen
&& pathname
[baselen
] != '/') ||
932 fspathncmp(pathname
, base
, baselen
))
935 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
936 name
= pathname
+ pathlen
- namelen
;
940 * if the non-wildcard part is longer than the
941 * remaining pathname, surely it cannot match.
943 if (prefix
> namelen
)
946 if (fspathncmp(pattern
, name
, prefix
))
949 patternlen
-= prefix
;
954 * If the whole pattern did not have a wildcard,
955 * then our prefix match is all we need; we
956 * do not need to call fnmatch at all.
958 if (!patternlen
&& !namelen
)
962 return fnmatch_icase_mem(pattern
, patternlen
,
968 * Scan the given exclude list in reverse to see whether pathname
969 * should be ignored. The first match (i.e. the last on the list), if
970 * any, determines the fate. Returns the exclude_list element which
971 * matched, or NULL for undecided.
973 static struct exclude
*last_exclude_matching_from_list(const char *pathname
,
975 const char *basename
,
977 struct exclude_list
*el
,
978 struct index_state
*istate
)
980 struct exclude
*exc
= NULL
; /* undecided */
984 return NULL
; /* undefined */
986 for (i
= el
->nr
- 1; 0 <= i
; i
--) {
987 struct exclude
*x
= el
->excludes
[i
];
988 const char *exclude
= x
->pattern
;
989 int prefix
= x
->nowildcardlen
;
991 if (x
->flags
& EXC_FLAG_MUSTBEDIR
) {
992 if (*dtype
== DT_UNKNOWN
)
993 *dtype
= get_dtype(NULL
, istate
, pathname
, pathlen
);
994 if (*dtype
!= DT_DIR
)
998 if (x
->flags
& EXC_FLAG_NODIR
) {
999 if (match_basename(basename
,
1000 pathlen
- (basename
- pathname
),
1001 exclude
, prefix
, x
->patternlen
,
1009 assert(x
->baselen
== 0 || x
->base
[x
->baselen
- 1] == '/');
1010 if (match_pathname(pathname
, pathlen
,
1011 x
->base
, x
->baselen
? x
->baselen
- 1 : 0,
1012 exclude
, prefix
, x
->patternlen
, x
->flags
)) {
1021 * Scan the list and let the last match determine the fate.
1022 * Return 1 for exclude, 0 for include and -1 for undecided.
1024 int is_excluded_from_list(const char *pathname
,
1025 int pathlen
, const char *basename
, int *dtype
,
1026 struct exclude_list
*el
, struct index_state
*istate
)
1028 struct exclude
*exclude
;
1029 exclude
= last_exclude_matching_from_list(pathname
, pathlen
, basename
,
1032 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1033 return -1; /* undecided */
1036 static struct exclude
*last_exclude_matching_from_lists(struct dir_struct
*dir
,
1037 struct index_state
*istate
,
1038 const char *pathname
, int pathlen
, const char *basename
,
1042 struct exclude_list_group
*group
;
1043 struct exclude
*exclude
;
1044 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
1045 group
= &dir
->exclude_list_group
[i
];
1046 for (j
= group
->nr
- 1; j
>= 0; j
--) {
1047 exclude
= last_exclude_matching_from_list(
1048 pathname
, pathlen
, basename
, dtype_p
,
1049 &group
->el
[j
], istate
);
1058 * Loads the per-directory exclude list for the substring of base
1059 * which has a char length of baselen.
1061 static void prep_exclude(struct dir_struct
*dir
,
1062 struct index_state
*istate
,
1063 const char *base
, int baselen
)
1065 struct exclude_list_group
*group
;
1066 struct exclude_list
*el
;
1067 struct exclude_stack
*stk
= NULL
;
1068 struct untracked_cache_dir
*untracked
;
1071 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1074 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1075 * which originate from directories not in the prefix of the
1076 * path being checked.
1078 while ((stk
= dir
->exclude_stack
) != NULL
) {
1079 if (stk
->baselen
<= baselen
&&
1080 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1082 el
= &group
->el
[dir
->exclude_stack
->exclude_ix
];
1083 dir
->exclude_stack
= stk
->prev
;
1084 dir
->exclude
= NULL
;
1085 free((char *)el
->src
); /* see strbuf_detach() below */
1086 clear_exclude_list(el
);
1091 /* Skip traversing into sub directories if the parent is excluded */
1096 * Lazy initialization. All call sites currently just
1097 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1098 * them seems lots of work for little benefit.
1100 if (!dir
->basebuf
.buf
)
1101 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1103 /* Read from the parent directories and push them down. */
1104 current
= stk
? stk
->baselen
: -1;
1105 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1107 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1111 while (current
< baselen
) {
1113 struct sha1_stat sha1_stat
;
1115 stk
= xcalloc(1, sizeof(*stk
));
1120 cp
= strchr(base
+ current
+ 1, '/');
1122 die("oops in prep_exclude");
1125 lookup_untracked(dir
->untracked
, untracked
,
1127 cp
- base
- current
);
1129 stk
->prev
= dir
->exclude_stack
;
1130 stk
->baselen
= cp
- base
;
1131 stk
->exclude_ix
= group
->nr
;
1132 stk
->ucd
= untracked
;
1133 el
= add_exclude_list(dir
, EXC_DIRS
, NULL
);
1134 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1135 assert(stk
->baselen
== dir
->basebuf
.len
);
1137 /* Abort if the directory is excluded */
1140 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1141 dir
->exclude
= last_exclude_matching_from_lists(dir
,
1143 dir
->basebuf
.buf
, stk
->baselen
- 1,
1144 dir
->basebuf
.buf
+ current
, &dt
);
1145 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1147 dir
->exclude
->flags
& EXC_FLAG_NEGATIVE
)
1148 dir
->exclude
= NULL
;
1150 dir
->exclude_stack
= stk
;
1155 /* Try to read per-directory file */
1156 hashclr(sha1_stat
.sha1
);
1157 sha1_stat
.valid
= 0;
1158 if (dir
->exclude_per_dir
&&
1160 * If we know that no files have been added in
1161 * this directory (i.e. valid_cached_dir() has
1162 * been executed and set untracked->valid) ..
1164 (!untracked
|| !untracked
->valid
||
1166 * .. and .gitignore does not exist before
1167 * (i.e. null exclude_sha1). Then we can skip
1168 * loading .gitignore, which would result in
1171 !is_null_sha1(untracked
->exclude_sha1
))) {
1173 * dir->basebuf gets reused by the traversal, but we
1174 * need fname to remain unchanged to ensure the src
1175 * member of each struct exclude correctly
1176 * back-references its source file. Other invocations
1177 * of add_exclude_list provide stable strings, so we
1178 * strbuf_detach() and free() here in the caller.
1180 struct strbuf sb
= STRBUF_INIT
;
1181 strbuf_addbuf(&sb
, &dir
->basebuf
);
1182 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1183 el
->src
= strbuf_detach(&sb
, NULL
);
1184 add_excludes(el
->src
, el
->src
, stk
->baselen
, el
, istate
,
1185 untracked
? &sha1_stat
: NULL
);
1188 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1189 * will first be called in valid_cached_dir() then maybe many
1190 * times more in last_exclude_matching(). When the cache is
1191 * used, last_exclude_matching() will not be called and
1192 * reading .gitignore content will be a waste.
1194 * So when it's called by valid_cached_dir() and we can get
1195 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1196 * modified on work tree), we could delay reading the
1197 * .gitignore content until we absolutely need it in
1198 * last_exclude_matching(). Be careful about ignore rule
1199 * order, though, if you do that.
1202 hashcmp(sha1_stat
.sha1
, untracked
->exclude_sha1
)) {
1203 invalidate_gitignore(dir
->untracked
, untracked
);
1204 hashcpy(untracked
->exclude_sha1
, sha1_stat
.sha1
);
1206 dir
->exclude_stack
= stk
;
1207 current
= stk
->baselen
;
1209 strbuf_setlen(&dir
->basebuf
, baselen
);
1213 * Loads the exclude lists for the directory containing pathname, then
1214 * scans all exclude lists to determine whether pathname is excluded.
1215 * Returns the exclude_list element which matched, or NULL for
1218 struct exclude
*last_exclude_matching(struct dir_struct
*dir
,
1219 struct index_state
*istate
,
1220 const char *pathname
,
1223 int pathlen
= strlen(pathname
);
1224 const char *basename
= strrchr(pathname
, '/');
1225 basename
= (basename
) ? basename
+1 : pathname
;
1227 prep_exclude(dir
, istate
, pathname
, basename
-pathname
);
1230 return dir
->exclude
;
1232 return last_exclude_matching_from_lists(dir
, istate
, pathname
, pathlen
,
1237 * Loads the exclude lists for the directory containing pathname, then
1238 * scans all exclude lists to determine whether pathname is excluded.
1239 * Returns 1 if true, otherwise 0.
1241 int is_excluded(struct dir_struct
*dir
, struct index_state
*istate
,
1242 const char *pathname
, int *dtype_p
)
1244 struct exclude
*exclude
=
1245 last_exclude_matching(dir
, istate
, pathname
, dtype_p
);
1247 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1251 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1253 struct dir_entry
*ent
;
1255 FLEX_ALLOC_MEM(ent
, name
, pathname
, len
);
1260 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
,
1261 struct index_state
*istate
,
1262 const char *pathname
, int len
)
1264 if (index_file_exists(istate
, pathname
, len
, ignore_case
))
1267 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1268 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1271 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
,
1272 struct index_state
*istate
,
1273 const char *pathname
, int len
)
1275 if (!index_name_is_other(istate
, pathname
, len
))
1278 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1279 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1283 index_nonexistent
= 0,
1289 * Do not use the alphabetically sorted index to look up
1290 * the directory name; instead, use the case insensitive
1293 static enum exist_status
directory_exists_in_index_icase(struct index_state
*istate
,
1294 const char *dirname
, int len
)
1296 struct cache_entry
*ce
;
1298 if (index_dir_exists(istate
, dirname
, len
))
1299 return index_directory
;
1301 ce
= index_file_exists(istate
, dirname
, len
, ignore_case
);
1302 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1303 return index_gitdir
;
1305 return index_nonexistent
;
1309 * The index sorts alphabetically by entry name, which
1310 * means that a gitlink sorts as '\0' at the end, while
1311 * a directory (which is defined not as an entry, but as
1312 * the files it contains) will sort with the '/' at the
1315 static enum exist_status
directory_exists_in_index(struct index_state
*istate
,
1316 const char *dirname
, int len
)
1321 return directory_exists_in_index_icase(istate
, dirname
, len
);
1323 pos
= index_name_pos(istate
, dirname
, len
);
1326 while (pos
< istate
->cache_nr
) {
1327 const struct cache_entry
*ce
= istate
->cache
[pos
++];
1328 unsigned char endchar
;
1330 if (strncmp(ce
->name
, dirname
, len
))
1332 endchar
= ce
->name
[len
];
1336 return index_directory
;
1337 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1338 return index_gitdir
;
1340 return index_nonexistent
;
1344 * When we find a directory when traversing the filesystem, we
1345 * have three distinct cases:
1348 * - see it as a directory
1351 * and which one we choose depends on a combination of existing
1352 * git index contents and the flags passed into the directory
1353 * traversal routine.
1355 * Case 1: If we *already* have entries in the index under that
1356 * directory name, we always recurse into the directory to see
1359 * Case 2: If we *already* have that directory name as a gitlink,
1360 * we always continue to see it as a gitlink, regardless of whether
1361 * there is an actual git directory there or not (it might not
1362 * be checked out as a subproject!)
1364 * Case 3: if we didn't have it in the index previously, we
1365 * have a few sub-cases:
1367 * (a) if "show_other_directories" is true, we show it as
1368 * just a directory, unless "hide_empty_directories" is
1369 * also true, in which case we need to check if it contains any
1370 * untracked and / or ignored files.
1371 * (b) if it looks like a git directory, and we don't have
1372 * 'no_gitlinks' set we treat it as a gitlink, and show it
1374 * (c) otherwise, we recurse into it.
1376 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1377 struct index_state
*istate
,
1378 struct untracked_cache_dir
*untracked
,
1379 const char *dirname
, int len
, int baselen
, int exclude
,
1380 const struct pathspec
*pathspec
)
1382 /* The "len-1" is to strip the final '/' */
1383 switch (directory_exists_in_index(istate
, dirname
, len
-1)) {
1384 case index_directory
:
1385 return path_recurse
;
1390 case index_nonexistent
:
1391 if (dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)
1393 if (!(dir
->flags
& DIR_NO_GITLINKS
)) {
1394 unsigned char sha1
[20];
1395 if (resolve_gitlink_ref(dirname
, "HEAD", sha1
) == 0)
1396 return path_untracked
;
1398 return path_recurse
;
1401 /* This is the "show_other_directories" case */
1403 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1404 return exclude
? path_excluded
: path_untracked
;
1406 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1407 dirname
+ baselen
, len
- baselen
);
1408 return read_directory_recursive(dir
, istate
, dirname
, len
,
1409 untracked
, 1, pathspec
);
1413 * This is an inexact early pruning of any recursive directory
1414 * reading - if the path cannot possibly be in the pathspec,
1415 * return true, and we'll skip it early.
1417 static int simplify_away(const char *path
, int pathlen
,
1418 const struct pathspec
*pathspec
)
1422 if (!pathspec
|| !pathspec
->nr
)
1425 GUARD_PATHSPEC(pathspec
,
1434 for (i
= 0; i
< pathspec
->nr
; i
++) {
1435 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1436 int len
= item
->nowildcard_len
;
1440 if (!ps_strncmp(item
, item
->match
, path
, len
))
1448 * This function tells us whether an excluded path matches a
1449 * list of "interesting" pathspecs. That is, whether a path matched
1450 * by any of the pathspecs could possibly be ignored by excluding
1451 * the specified path. This can happen if:
1453 * 1. the path is mentioned explicitly in the pathspec
1455 * 2. the path is a directory prefix of some element in the
1458 static int exclude_matches_pathspec(const char *path
, int pathlen
,
1459 const struct pathspec
*pathspec
)
1463 if (!pathspec
|| !pathspec
->nr
)
1466 GUARD_PATHSPEC(pathspec
,
1474 for (i
= 0; i
< pathspec
->nr
; i
++) {
1475 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1476 int len
= item
->nowildcard_len
;
1478 if (len
== pathlen
&&
1479 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1481 if (len
> pathlen
&&
1482 item
->match
[pathlen
] == '/' &&
1483 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1489 static int get_index_dtype(struct index_state
*istate
,
1490 const char *path
, int len
)
1493 const struct cache_entry
*ce
;
1495 ce
= index_file_exists(istate
, path
, len
, 0);
1497 if (!ce_uptodate(ce
))
1499 if (S_ISGITLINK(ce
->ce_mode
))
1502 * Nobody actually cares about the
1503 * difference between DT_LNK and DT_REG
1508 /* Try to look it up as a directory */
1509 pos
= index_name_pos(istate
, path
, len
);
1513 while (pos
< istate
->cache_nr
) {
1514 ce
= istate
->cache
[pos
++];
1515 if (strncmp(ce
->name
, path
, len
))
1517 if (ce
->name
[len
] > '/')
1519 if (ce
->name
[len
] < '/')
1521 if (!ce_uptodate(ce
))
1522 break; /* continue? */
1528 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
1529 const char *path
, int len
)
1531 int dtype
= de
? DTYPE(de
) : DT_UNKNOWN
;
1534 if (dtype
!= DT_UNKNOWN
)
1536 dtype
= get_index_dtype(istate
, path
, len
);
1537 if (dtype
!= DT_UNKNOWN
)
1539 if (lstat(path
, &st
))
1541 if (S_ISREG(st
.st_mode
))
1543 if (S_ISDIR(st
.st_mode
))
1545 if (S_ISLNK(st
.st_mode
))
1550 static enum path_treatment
treat_one_path(struct dir_struct
*dir
,
1551 struct untracked_cache_dir
*untracked
,
1552 struct index_state
*istate
,
1553 struct strbuf
*path
,
1555 const struct pathspec
*pathspec
,
1556 int dtype
, struct dirent
*de
)
1559 int has_path_in_index
= !!index_file_exists(istate
, path
->buf
, path
->len
, ignore_case
);
1561 if (dtype
== DT_UNKNOWN
)
1562 dtype
= get_dtype(de
, istate
, path
->buf
, path
->len
);
1564 /* Always exclude indexed files */
1565 if (dtype
!= DT_DIR
&& has_path_in_index
)
1569 * When we are looking at a directory P in the working tree,
1570 * there are three cases:
1572 * (1) P exists in the index. Everything inside the directory P in
1573 * the working tree needs to go when P is checked out from the
1576 * (2) P does not exist in the index, but there is P/Q in the index.
1577 * We know P will stay a directory when we check out the contents
1578 * of the index, but we do not know yet if there is a directory
1579 * P/Q in the working tree to be killed, so we need to recurse.
1581 * (3) P does not exist in the index, and there is no P/Q in the index
1582 * to require P to be a directory, either. Only in this case, we
1583 * know that everything inside P will not be killed without
1586 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
1587 (dtype
== DT_DIR
) &&
1588 !has_path_in_index
&&
1589 (directory_exists_in_index(istate
, path
->buf
, path
->len
) == index_nonexistent
))
1592 exclude
= is_excluded(dir
, istate
, path
->buf
, &dtype
);
1595 * Excluded? If we don't explicitly want to show
1596 * ignored files, ignore it
1598 if (exclude
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
1599 return path_excluded
;
1605 strbuf_addch(path
, '/');
1606 return treat_directory(dir
, istate
, untracked
, path
->buf
, path
->len
,
1607 baselen
, exclude
, pathspec
);
1610 return exclude
? path_excluded
: path_untracked
;
1614 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
1615 struct untracked_cache_dir
*untracked
,
1616 struct cached_dir
*cdir
,
1617 struct index_state
*istate
,
1618 struct strbuf
*path
,
1620 const struct pathspec
*pathspec
)
1622 strbuf_setlen(path
, baselen
);
1624 strbuf_addstr(path
, cdir
->file
);
1625 return path_untracked
;
1627 strbuf_addstr(path
, cdir
->ucd
->name
);
1628 /* treat_one_path() does this before it calls treat_directory() */
1629 strbuf_complete(path
, '/');
1630 if (cdir
->ucd
->check_only
)
1632 * check_only is set as a result of treat_directory() getting
1633 * to its bottom. Verify again the same set of directories
1634 * with check_only set.
1636 return read_directory_recursive(dir
, istate
, path
->buf
, path
->len
,
1637 cdir
->ucd
, 1, pathspec
);
1639 * We get path_recurse in the first run when
1640 * directory_exists_in_index() returns index_nonexistent. We
1641 * are sure that new changes in the index does not impact the
1642 * outcome. Return now.
1644 return path_recurse
;
1647 static enum path_treatment
treat_path(struct dir_struct
*dir
,
1648 struct untracked_cache_dir
*untracked
,
1649 struct cached_dir
*cdir
,
1650 struct index_state
*istate
,
1651 struct strbuf
*path
,
1653 const struct pathspec
*pathspec
)
1656 struct dirent
*de
= cdir
->de
;
1659 return treat_path_fast(dir
, untracked
, cdir
, istate
, path
,
1661 if (is_dot_or_dotdot(de
->d_name
) || !strcmp(de
->d_name
, ".git"))
1663 strbuf_setlen(path
, baselen
);
1664 strbuf_addstr(path
, de
->d_name
);
1665 if (simplify_away(path
->buf
, path
->len
, pathspec
))
1669 return treat_one_path(dir
, untracked
, istate
, path
, baselen
, pathspec
, dtype
, de
);
1672 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
1676 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
1677 dir
->untracked_alloc
);
1678 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
1681 static int valid_cached_dir(struct dir_struct
*dir
,
1682 struct untracked_cache_dir
*untracked
,
1683 struct index_state
*istate
,
1684 struct strbuf
*path
,
1693 * With fsmonitor, we can trust the untracked cache's valid field.
1695 refresh_fsmonitor(istate
);
1696 if (!(dir
->untracked
->use_fsmonitor
&& untracked
->valid
)) {
1697 if (stat(path
->len
? path
->buf
: ".", &st
)) {
1698 invalidate_directory(dir
->untracked
, untracked
);
1699 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
1702 if (!untracked
->valid
||
1703 match_stat_data_racy(istate
, &untracked
->stat_data
, &st
)) {
1704 if (untracked
->valid
)
1705 invalidate_directory(dir
->untracked
, untracked
);
1706 fill_stat_data(&untracked
->stat_data
, &st
);
1711 if (untracked
->check_only
!= !!check_only
) {
1712 invalidate_directory(dir
->untracked
, untracked
);
1717 * prep_exclude will be called eventually on this directory,
1718 * but it's called much later in last_exclude_matching(). We
1719 * need it now to determine the validity of the cache for this
1720 * path. The next calls will be nearly no-op, the way
1721 * prep_exclude() is designed.
1723 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
1724 strbuf_addch(path
, '/');
1725 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
1726 strbuf_setlen(path
, path
->len
- 1);
1728 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
1730 /* hopefully prep_exclude() haven't invalidated this entry... */
1731 return untracked
->valid
;
1734 static int open_cached_dir(struct cached_dir
*cdir
,
1735 struct dir_struct
*dir
,
1736 struct untracked_cache_dir
*untracked
,
1737 struct index_state
*istate
,
1738 struct strbuf
*path
,
1741 memset(cdir
, 0, sizeof(*cdir
));
1742 cdir
->untracked
= untracked
;
1743 if (valid_cached_dir(dir
, untracked
, istate
, path
, check_only
))
1745 cdir
->fdir
= opendir(path
->len
? path
->buf
: ".");
1747 dir
->untracked
->dir_opened
++;
1753 static int read_cached_dir(struct cached_dir
*cdir
)
1756 cdir
->de
= readdir(cdir
->fdir
);
1761 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
1762 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
1772 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
1773 struct untracked_cache_dir
*d
= cdir
->untracked
;
1774 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
1780 static void close_cached_dir(struct cached_dir
*cdir
)
1783 closedir(cdir
->fdir
);
1785 * We have gone through this directory and found no untracked
1786 * entries. Mark it valid.
1788 if (cdir
->untracked
) {
1789 cdir
->untracked
->valid
= 1;
1790 cdir
->untracked
->recurse
= 1;
1795 * Read a directory tree. We currently ignore anything but
1796 * directories, regular files and symlinks. That's because git
1797 * doesn't handle them at all yet. Maybe that will change some
1800 * Also, we ignore the name ".git" (even if it is not a directory).
1801 * That likely will not change.
1803 * Returns the most significant path_treatment value encountered in the scan.
1805 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
1806 struct index_state
*istate
, const char *base
, int baselen
,
1807 struct untracked_cache_dir
*untracked
, int check_only
,
1808 const struct pathspec
*pathspec
)
1810 struct cached_dir cdir
;
1811 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
1812 struct strbuf path
= STRBUF_INIT
;
1814 strbuf_add(&path
, base
, baselen
);
1816 if (open_cached_dir(&cdir
, dir
, untracked
, istate
, &path
, check_only
))
1820 untracked
->check_only
= !!check_only
;
1822 while (!read_cached_dir(&cdir
)) {
1823 /* check how the file or directory should be treated */
1824 state
= treat_path(dir
, untracked
, &cdir
, istate
, &path
,
1827 if (state
> dir_state
)
1830 /* recurse into subdir if instructed by treat_path */
1831 if ((state
== path_recurse
) ||
1832 ((state
== path_untracked
) &&
1833 (dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1834 (get_dtype(cdir
.de
, istate
, path
.buf
, path
.len
) == DT_DIR
))) {
1835 struct untracked_cache_dir
*ud
;
1836 ud
= lookup_untracked(dir
->untracked
, untracked
,
1838 path
.len
- baselen
);
1840 read_directory_recursive(dir
, istate
, path
.buf
,
1842 check_only
, pathspec
);
1843 if (subdir_state
> dir_state
)
1844 dir_state
= subdir_state
;
1848 /* abort early if maximum state has been reached */
1849 if (dir_state
== path_untracked
) {
1851 add_untracked(untracked
, path
.buf
+ baselen
);
1854 /* skip the dir_add_* part */
1858 /* add the path to the appropriate result list */
1861 if (dir
->flags
& DIR_SHOW_IGNORED
)
1862 dir_add_name(dir
, istate
, path
.buf
, path
.len
);
1863 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
1864 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
1865 exclude_matches_pathspec(path
.buf
, path
.len
,
1867 dir_add_ignored(dir
, istate
, path
.buf
, path
.len
);
1870 case path_untracked
:
1871 if (dir
->flags
& DIR_SHOW_IGNORED
)
1873 dir_add_name(dir
, istate
, path
.buf
, path
.len
);
1875 add_untracked(untracked
, path
.buf
+ baselen
);
1882 close_cached_dir(&cdir
);
1884 strbuf_release(&path
);
1889 int cmp_dir_entry(const void *p1
, const void *p2
)
1891 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
1892 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
1894 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
1897 /* check if *out lexically strictly contains *in */
1898 int check_dir_entry_contains(const struct dir_entry
*out
, const struct dir_entry
*in
)
1900 return (out
->len
< in
->len
) &&
1901 (out
->name
[out
->len
- 1] == '/') &&
1902 !memcmp(out
->name
, in
->name
, out
->len
);
1905 static int treat_leading_path(struct dir_struct
*dir
,
1906 struct index_state
*istate
,
1907 const char *path
, int len
,
1908 const struct pathspec
*pathspec
)
1910 struct strbuf sb
= STRBUF_INIT
;
1911 int baselen
, rc
= 0;
1913 int old_flags
= dir
->flags
;
1915 while (len
&& path
[len
- 1] == '/')
1920 dir
->flags
&= ~DIR_SHOW_OTHER_DIRECTORIES
;
1922 cp
= path
+ baselen
+ !!baselen
;
1923 cp
= memchr(cp
, '/', path
+ len
- cp
);
1927 baselen
= cp
- path
;
1928 strbuf_setlen(&sb
, 0);
1929 strbuf_add(&sb
, path
, baselen
);
1930 if (!is_directory(sb
.buf
))
1932 if (simplify_away(sb
.buf
, sb
.len
, pathspec
))
1934 if (treat_one_path(dir
, NULL
, istate
, &sb
, baselen
, pathspec
,
1935 DT_DIR
, NULL
) == path_none
)
1936 break; /* do not recurse into it */
1937 if (len
<= baselen
) {
1939 break; /* finished checking */
1942 strbuf_release(&sb
);
1943 dir
->flags
= old_flags
;
1947 static const char *get_ident_string(void)
1949 static struct strbuf sb
= STRBUF_INIT
;
1954 if (uname(&uts
) < 0)
1955 die_errno(_("failed to get kernel name and information"));
1956 strbuf_addf(&sb
, "Location %s, system %s", get_git_work_tree(),
1961 static int ident_in_untracked(const struct untracked_cache
*uc
)
1964 * Previous git versions may have saved many NUL separated
1965 * strings in the "ident" field, but it is insane to manage
1966 * many locations, so just take care of the first one.
1969 return !strcmp(uc
->ident
.buf
, get_ident_string());
1972 static void set_untracked_ident(struct untracked_cache
*uc
)
1974 strbuf_reset(&uc
->ident
);
1975 strbuf_addstr(&uc
->ident
, get_ident_string());
1978 * This strbuf used to contain a list of NUL separated
1979 * strings, so save NUL too for backward compatibility.
1981 strbuf_addch(&uc
->ident
, 0);
1984 static void new_untracked_cache(struct index_state
*istate
)
1986 struct untracked_cache
*uc
= xcalloc(1, sizeof(*uc
));
1987 strbuf_init(&uc
->ident
, 100);
1988 uc
->exclude_per_dir
= ".gitignore";
1989 /* should be the same flags used by git-status */
1990 uc
->dir_flags
= DIR_SHOW_OTHER_DIRECTORIES
| DIR_HIDE_EMPTY_DIRECTORIES
;
1991 set_untracked_ident(uc
);
1992 istate
->untracked
= uc
;
1993 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1996 void add_untracked_cache(struct index_state
*istate
)
1998 if (!istate
->untracked
) {
1999 new_untracked_cache(istate
);
2001 if (!ident_in_untracked(istate
->untracked
)) {
2002 free_untracked_cache(istate
->untracked
);
2003 new_untracked_cache(istate
);
2008 void remove_untracked_cache(struct index_state
*istate
)
2010 if (istate
->untracked
) {
2011 free_untracked_cache(istate
->untracked
);
2012 istate
->untracked
= NULL
;
2013 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2017 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
2019 const struct pathspec
*pathspec
)
2021 struct untracked_cache_dir
*root
;
2023 if (!dir
->untracked
|| getenv("GIT_DISABLE_UNTRACKED_CACHE"))
2027 * We only support $GIT_DIR/info/exclude and core.excludesfile
2028 * as the global ignore rule files. Any other additions
2029 * (e.g. from command line) invalidate the cache. This
2030 * condition also catches running setup_standard_excludes()
2031 * before setting dir->untracked!
2033 if (dir
->unmanaged_exclude_files
)
2037 * Optimize for the main use case only: whole-tree git
2038 * status. More work involved in treat_leading_path() if we
2039 * use cache on just a subset of the worktree. pathspec
2040 * support could make the matter even worse.
2042 if (base_len
|| (pathspec
&& pathspec
->nr
))
2045 /* Different set of flags may produce different results */
2046 if (dir
->flags
!= dir
->untracked
->dir_flags
||
2048 * See treat_directory(), case index_nonexistent. Without
2049 * this flag, we may need to also cache .git file content
2050 * for the resolve_gitlink_ref() call, which we don't.
2052 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
2053 /* We don't support collecting ignore files */
2054 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
2055 DIR_COLLECT_IGNORED
)))
2059 * If we use .gitignore in the cache and now you change it to
2060 * .gitexclude, everything will go wrong.
2062 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
2063 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
2067 * EXC_CMDL is not considered in the cache. If people set it,
2070 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
2073 if (!ident_in_untracked(dir
->untracked
)) {
2074 warning(_("Untracked cache is disabled on this system or location."));
2078 if (!dir
->untracked
->root
) {
2079 const int len
= sizeof(*dir
->untracked
->root
);
2080 dir
->untracked
->root
= xmalloc(len
);
2081 memset(dir
->untracked
->root
, 0, len
);
2084 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2085 root
= dir
->untracked
->root
;
2086 if (hashcmp(dir
->ss_info_exclude
.sha1
,
2087 dir
->untracked
->ss_info_exclude
.sha1
)) {
2088 invalidate_gitignore(dir
->untracked
, root
);
2089 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2091 if (hashcmp(dir
->ss_excludes_file
.sha1
,
2092 dir
->untracked
->ss_excludes_file
.sha1
)) {
2093 invalidate_gitignore(dir
->untracked
, root
);
2094 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2097 /* Make sure this directory is not dropped out at saving phase */
2102 int read_directory(struct dir_struct
*dir
, struct index_state
*istate
,
2103 const char *path
, int len
, const struct pathspec
*pathspec
)
2105 struct untracked_cache_dir
*untracked
;
2107 if (has_symlink_leading_path(path
, len
))
2110 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2113 * make sure untracked cache code path is disabled,
2114 * e.g. prep_exclude()
2116 dir
->untracked
= NULL
;
2117 if (!len
|| treat_leading_path(dir
, istate
, path
, len
, pathspec
))
2118 read_directory_recursive(dir
, istate
, path
, len
, untracked
, 0, pathspec
);
2119 QSORT(dir
->entries
, dir
->nr
, cmp_dir_entry
);
2120 QSORT(dir
->ignored
, dir
->ignored_nr
, cmp_dir_entry
);
2123 * If DIR_SHOW_IGNORED_TOO is set, read_directory_recursive() will
2124 * also pick up untracked contents of untracked dirs; by default
2125 * we discard these, but given DIR_KEEP_UNTRACKED_CONTENTS we do not.
2127 if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
2128 !(dir
->flags
& DIR_KEEP_UNTRACKED_CONTENTS
)) {
2131 /* remove from dir->entries untracked contents of untracked dirs */
2132 for (i
= j
= 0; j
< dir
->nr
; j
++) {
2134 check_dir_entry_contains(dir
->entries
[i
- 1], dir
->entries
[j
])) {
2135 FREE_AND_NULL(dir
->entries
[j
]);
2137 dir
->entries
[i
++] = dir
->entries
[j
];
2144 if (dir
->untracked
) {
2145 static struct trace_key trace_untracked_stats
= TRACE_KEY_INIT(UNTRACKED_STATS
);
2146 trace_printf_key(&trace_untracked_stats
,
2147 "node creation: %u\n"
2148 "gitignore invalidation: %u\n"
2149 "directory invalidation: %u\n"
2151 dir
->untracked
->dir_created
,
2152 dir
->untracked
->gitignore_invalidated
,
2153 dir
->untracked
->dir_invalidated
,
2154 dir
->untracked
->dir_opened
);
2155 if (dir
->untracked
== istate
->untracked
&&
2156 (dir
->untracked
->dir_opened
||
2157 dir
->untracked
->gitignore_invalidated
||
2158 dir
->untracked
->dir_invalidated
))
2159 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2160 if (dir
->untracked
!= istate
->untracked
) {
2161 FREE_AND_NULL(dir
->untracked
);
2167 int file_exists(const char *f
)
2170 return lstat(f
, &sb
) == 0;
2173 static int cmp_icase(char a
, char b
)
2178 return toupper(a
) - toupper(b
);
2183 * Given two normalized paths (a trailing slash is ok), if subdir is
2184 * outside dir, return -1. Otherwise return the offset in subdir that
2185 * can be used as relative path to dir.
2187 int dir_inside_of(const char *subdir
, const char *dir
)
2191 assert(dir
&& subdir
&& *dir
&& *subdir
);
2193 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2199 /* hel[p]/me vs hel[l]/yeah */
2200 if (*dir
&& *subdir
)
2204 return !*dir
? offset
: -1; /* same dir */
2206 /* foo/[b]ar vs foo/[] */
2207 if (is_dir_sep(dir
[-1]))
2208 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2210 /* foo[/]bar vs foo[] */
2211 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2214 int is_inside_dir(const char *dir
)
2223 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2228 int is_empty_dir(const char *path
)
2230 DIR *dir
= opendir(path
);
2237 while ((e
= readdir(dir
)) != NULL
)
2238 if (!is_dot_or_dotdot(e
->d_name
)) {
2247 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2251 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2252 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2253 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2254 unsigned char submodule_head
[20];
2256 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2257 !resolve_gitlink_ref(path
->buf
, "HEAD", submodule_head
)) {
2258 /* Do not descend and nuke a nested git work tree. */
2264 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2265 dir
= opendir(path
->buf
);
2267 if (errno
== ENOENT
)
2268 return keep_toplevel
? -1 : 0;
2269 else if (errno
== EACCES
&& !keep_toplevel
)
2271 * An empty dir could be removable even if it
2274 return rmdir(path
->buf
);
2278 strbuf_complete(path
, '/');
2281 while ((e
= readdir(dir
)) != NULL
) {
2283 if (is_dot_or_dotdot(e
->d_name
))
2286 strbuf_setlen(path
, len
);
2287 strbuf_addstr(path
, e
->d_name
);
2288 if (lstat(path
->buf
, &st
)) {
2289 if (errno
== ENOENT
)
2291 * file disappeared, which is what we
2296 } else if (S_ISDIR(st
.st_mode
)) {
2297 if (!remove_dir_recurse(path
, flag
, &kept_down
))
2298 continue; /* happy */
2299 } else if (!only_empty
&&
2300 (!unlink(path
->buf
) || errno
== ENOENT
)) {
2301 continue; /* happy, too */
2304 /* path too long, stat fails, or non-directory still exists */
2310 strbuf_setlen(path
, original_len
);
2311 if (!ret
&& !keep_toplevel
&& !kept_down
)
2312 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
2315 * report the uplevel that it is not an error that we
2316 * did not rmdir() our directory.
2322 int remove_dir_recursively(struct strbuf
*path
, int flag
)
2324 return remove_dir_recurse(path
, flag
, NULL
);
2327 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
2329 void setup_standard_excludes(struct dir_struct
*dir
)
2331 dir
->exclude_per_dir
= ".gitignore";
2333 /* core.excludefile defaulting to $XDG_HOME/git/ignore */
2335 excludes_file
= xdg_config_home("ignore");
2336 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
2337 add_excludes_from_file_1(dir
, excludes_file
,
2338 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
2340 /* per repository user preference */
2341 if (startup_info
->have_repository
) {
2342 const char *path
= git_path_info_exclude();
2343 if (!access_or_warn(path
, R_OK
, 0))
2344 add_excludes_from_file_1(dir
, path
,
2345 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
2349 int remove_path(const char *name
)
2353 if (unlink(name
) && !is_missing_file_error(errno
))
2356 slash
= strrchr(name
, '/');
2358 char *dirs
= xstrdup(name
);
2359 slash
= dirs
+ (slash
- name
);
2362 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
2369 * Frees memory within dir which was allocated for exclude lists and
2370 * the exclude_stack. Does not free dir itself.
2372 void clear_directory(struct dir_struct
*dir
)
2375 struct exclude_list_group
*group
;
2376 struct exclude_list
*el
;
2377 struct exclude_stack
*stk
;
2379 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
2380 group
= &dir
->exclude_list_group
[i
];
2381 for (j
= 0; j
< group
->nr
; j
++) {
2384 free((char *)el
->src
);
2385 clear_exclude_list(el
);
2390 stk
= dir
->exclude_stack
;
2392 struct exclude_stack
*prev
= stk
->prev
;
2396 strbuf_release(&dir
->basebuf
);
2399 struct ondisk_untracked_cache
{
2400 struct stat_data info_exclude_stat
;
2401 struct stat_data excludes_file_stat
;
2403 unsigned char info_exclude_sha1
[20];
2404 unsigned char excludes_file_sha1
[20];
2405 char exclude_per_dir
[FLEX_ARRAY
];
2408 #define ouc_offset(x) offsetof(struct ondisk_untracked_cache, x)
2409 #define ouc_size(len) (ouc_offset(exclude_per_dir) + len + 1)
2412 int index
; /* number of written untracked_cache_dir */
2413 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
2414 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
2415 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
2417 struct strbuf sb_stat
;
2418 struct strbuf sb_sha1
;
2421 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
2423 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
2424 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
2425 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
2426 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
2427 to
->sd_dev
= htonl(from
->sd_dev
);
2428 to
->sd_ino
= htonl(from
->sd_ino
);
2429 to
->sd_uid
= htonl(from
->sd_uid
);
2430 to
->sd_gid
= htonl(from
->sd_gid
);
2431 to
->sd_size
= htonl(from
->sd_size
);
2434 static void write_one_dir(struct untracked_cache_dir
*untracked
,
2435 struct write_data
*wd
)
2437 struct stat_data stat_data
;
2438 struct strbuf
*out
= &wd
->out
;
2439 unsigned char intbuf
[16];
2440 unsigned int intlen
, value
;
2441 int i
= wd
->index
++;
2444 * untracked_nr should be reset whenever valid is clear, but
2447 if (!untracked
->valid
) {
2448 untracked
->untracked_nr
= 0;
2449 untracked
->check_only
= 0;
2452 if (untracked
->check_only
)
2453 ewah_set(wd
->check_only
, i
);
2454 if (untracked
->valid
) {
2455 ewah_set(wd
->valid
, i
);
2456 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
2457 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
2459 if (!is_null_sha1(untracked
->exclude_sha1
)) {
2460 ewah_set(wd
->sha1_valid
, i
);
2461 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_sha1
, 20);
2464 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
2465 strbuf_add(out
, intbuf
, intlen
);
2467 /* skip non-recurse directories */
2468 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
2469 if (untracked
->dirs
[i
]->recurse
)
2471 intlen
= encode_varint(value
, intbuf
);
2472 strbuf_add(out
, intbuf
, intlen
);
2474 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
2476 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
2477 strbuf_add(out
, untracked
->untracked
[i
],
2478 strlen(untracked
->untracked
[i
]) + 1);
2480 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
2481 if (untracked
->dirs
[i
]->recurse
)
2482 write_one_dir(untracked
->dirs
[i
], wd
);
2485 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
2487 struct ondisk_untracked_cache
*ouc
;
2488 struct write_data wd
;
2489 unsigned char varbuf
[16];
2491 size_t len
= strlen(untracked
->exclude_per_dir
);
2493 FLEX_ALLOC_MEM(ouc
, exclude_per_dir
, untracked
->exclude_per_dir
, len
);
2494 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
2495 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
2496 hashcpy(ouc
->info_exclude_sha1
, untracked
->ss_info_exclude
.sha1
);
2497 hashcpy(ouc
->excludes_file_sha1
, untracked
->ss_excludes_file
.sha1
);
2498 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
2500 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
2501 strbuf_add(out
, varbuf
, varint_len
);
2502 strbuf_addbuf(out
, &untracked
->ident
);
2504 strbuf_add(out
, ouc
, ouc_size(len
));
2507 if (!untracked
->root
) {
2508 varint_len
= encode_varint(0, varbuf
);
2509 strbuf_add(out
, varbuf
, varint_len
);
2514 wd
.check_only
= ewah_new();
2515 wd
.valid
= ewah_new();
2516 wd
.sha1_valid
= ewah_new();
2517 strbuf_init(&wd
.out
, 1024);
2518 strbuf_init(&wd
.sb_stat
, 1024);
2519 strbuf_init(&wd
.sb_sha1
, 1024);
2520 write_one_dir(untracked
->root
, &wd
);
2522 varint_len
= encode_varint(wd
.index
, varbuf
);
2523 strbuf_add(out
, varbuf
, varint_len
);
2524 strbuf_addbuf(out
, &wd
.out
);
2525 ewah_serialize_strbuf(wd
.valid
, out
);
2526 ewah_serialize_strbuf(wd
.check_only
, out
);
2527 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
2528 strbuf_addbuf(out
, &wd
.sb_stat
);
2529 strbuf_addbuf(out
, &wd
.sb_sha1
);
2530 strbuf_addch(out
, '\0'); /* safe guard for string lists */
2532 ewah_free(wd
.valid
);
2533 ewah_free(wd
.check_only
);
2534 ewah_free(wd
.sha1_valid
);
2535 strbuf_release(&wd
.out
);
2536 strbuf_release(&wd
.sb_stat
);
2537 strbuf_release(&wd
.sb_sha1
);
2540 static void free_untracked(struct untracked_cache_dir
*ucd
)
2545 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
2546 free_untracked(ucd
->dirs
[i
]);
2547 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
2548 free(ucd
->untracked
[i
]);
2549 free(ucd
->untracked
);
2554 void free_untracked_cache(struct untracked_cache
*uc
)
2557 free_untracked(uc
->root
);
2563 struct untracked_cache_dir
**ucd
;
2564 struct ewah_bitmap
*check_only
;
2565 struct ewah_bitmap
*valid
;
2566 struct ewah_bitmap
*sha1_valid
;
2567 const unsigned char *data
;
2568 const unsigned char *end
;
2571 static void stat_data_from_disk(struct stat_data
*to
, const unsigned char *data
)
2573 memcpy(to
, data
, sizeof(*to
));
2574 to
->sd_ctime
.sec
= ntohl(to
->sd_ctime
.sec
);
2575 to
->sd_ctime
.nsec
= ntohl(to
->sd_ctime
.nsec
);
2576 to
->sd_mtime
.sec
= ntohl(to
->sd_mtime
.sec
);
2577 to
->sd_mtime
.nsec
= ntohl(to
->sd_mtime
.nsec
);
2578 to
->sd_dev
= ntohl(to
->sd_dev
);
2579 to
->sd_ino
= ntohl(to
->sd_ino
);
2580 to
->sd_uid
= ntohl(to
->sd_uid
);
2581 to
->sd_gid
= ntohl(to
->sd_gid
);
2582 to
->sd_size
= ntohl(to
->sd_size
);
2585 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
2586 struct read_data
*rd
)
2588 struct untracked_cache_dir ud
, *untracked
;
2589 const unsigned char *next
, *data
= rd
->data
, *end
= rd
->end
;
2593 memset(&ud
, 0, sizeof(ud
));
2596 value
= decode_varint(&next
);
2600 ud
.untracked_alloc
= value
;
2601 ud
.untracked_nr
= value
;
2602 if (ud
.untracked_nr
)
2603 ALLOC_ARRAY(ud
.untracked
, ud
.untracked_nr
);
2607 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&next
);
2610 ALLOC_ARRAY(ud
.dirs
, ud
.dirs_nr
);
2613 len
= strlen((const char *)data
);
2614 next
= data
+ len
+ 1;
2617 *untracked_
= untracked
= xmalloc(st_add(sizeof(*untracked
), len
));
2618 memcpy(untracked
, &ud
, sizeof(ud
));
2619 memcpy(untracked
->name
, data
, len
+ 1);
2622 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
2623 len
= strlen((const char *)data
);
2624 next
= data
+ len
+ 1;
2627 untracked
->untracked
[i
] = xstrdup((const char*)data
);
2631 rd
->ucd
[rd
->index
++] = untracked
;
2634 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
2635 len
= read_one_dir(untracked
->dirs
+ i
, rd
);
2642 static void set_check_only(size_t pos
, void *cb
)
2644 struct read_data
*rd
= cb
;
2645 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2649 static void read_stat(size_t pos
, void *cb
)
2651 struct read_data
*rd
= cb
;
2652 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2653 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
2654 rd
->data
= rd
->end
+ 1;
2657 stat_data_from_disk(&ud
->stat_data
, rd
->data
);
2658 rd
->data
+= sizeof(struct stat_data
);
2662 static void read_sha1(size_t pos
, void *cb
)
2664 struct read_data
*rd
= cb
;
2665 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2666 if (rd
->data
+ 20 > rd
->end
) {
2667 rd
->data
= rd
->end
+ 1;
2670 hashcpy(ud
->exclude_sha1
, rd
->data
);
2674 static void load_sha1_stat(struct sha1_stat
*sha1_stat
,
2675 const unsigned char *data
,
2676 const unsigned char *sha1
)
2678 stat_data_from_disk(&sha1_stat
->stat
, data
);
2679 hashcpy(sha1_stat
->sha1
, sha1
);
2680 sha1_stat
->valid
= 1;
2683 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
2685 struct untracked_cache
*uc
;
2686 struct read_data rd
;
2687 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
2690 const char *exclude_per_dir
;
2692 if (sz
<= 1 || end
[-1] != '\0')
2696 ident_len
= decode_varint(&next
);
2697 if (next
+ ident_len
> end
)
2699 ident
= (const char *)next
;
2702 if (next
+ ouc_size(0) > end
)
2705 uc
= xcalloc(1, sizeof(*uc
));
2706 strbuf_init(&uc
->ident
, ident_len
);
2707 strbuf_add(&uc
->ident
, ident
, ident_len
);
2708 load_sha1_stat(&uc
->ss_info_exclude
,
2709 next
+ ouc_offset(info_exclude_stat
),
2710 next
+ ouc_offset(info_exclude_sha1
));
2711 load_sha1_stat(&uc
->ss_excludes_file
,
2712 next
+ ouc_offset(excludes_file_stat
),
2713 next
+ ouc_offset(excludes_file_sha1
));
2714 uc
->dir_flags
= get_be32(next
+ ouc_offset(dir_flags
));
2715 exclude_per_dir
= (const char *)next
+ ouc_offset(exclude_per_dir
);
2716 uc
->exclude_per_dir
= xstrdup(exclude_per_dir
);
2717 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
2718 next
+= ouc_size(strlen(exclude_per_dir
));
2722 len
= decode_varint(&next
);
2723 if (next
> end
|| len
== 0)
2726 rd
.valid
= ewah_new();
2727 rd
.check_only
= ewah_new();
2728 rd
.sha1_valid
= ewah_new();
2732 ALLOC_ARRAY(rd
.ucd
, len
);
2734 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
2738 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
2743 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
2748 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
2752 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
2753 rd
.data
= next
+ len
;
2754 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
2755 ewah_each_bit(rd
.sha1_valid
, read_sha1
, &rd
);
2760 ewah_free(rd
.valid
);
2761 ewah_free(rd
.check_only
);
2762 ewah_free(rd
.sha1_valid
);
2765 free_untracked_cache(uc
);
2771 static void invalidate_one_directory(struct untracked_cache
*uc
,
2772 struct untracked_cache_dir
*ucd
)
2774 uc
->dir_invalidated
++;
2776 ucd
->untracked_nr
= 0;
2780 * Normally when an entry is added or removed from a directory,
2781 * invalidating that directory is enough. No need to touch its
2782 * ancestors. When a directory is shown as "foo/bar/" in git-status
2783 * however, deleting or adding an entry may have cascading effect.
2785 * Say the "foo/bar/file" has become untracked, we need to tell the
2786 * untracked_cache_dir of "foo" that "bar/" is not an untracked
2787 * directory any more (because "bar" is managed by foo as an untracked
2790 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
2791 * was the last untracked entry in the entire "foo", we should show
2792 * "foo/" instead. Which means we have to invalidate past "bar" up to
2795 * This function traverses all directories from root to leaf. If there
2796 * is a chance of one of the above cases happening, we invalidate back
2797 * to root. Otherwise we just invalidate the leaf. There may be a more
2798 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
2799 * detect these cases and avoid unnecessary invalidation, for example,
2800 * checking for the untracked entry named "bar/" in "foo", but for now
2801 * stick to something safe and simple.
2803 static int invalidate_one_component(struct untracked_cache
*uc
,
2804 struct untracked_cache_dir
*dir
,
2805 const char *path
, int len
)
2807 const char *rest
= strchr(path
, '/');
2810 int component_len
= rest
- path
;
2811 struct untracked_cache_dir
*d
=
2812 lookup_untracked(uc
, dir
, path
, component_len
);
2814 invalidate_one_component(uc
, d
, rest
+ 1,
2815 len
- (component_len
+ 1));
2817 invalidate_one_directory(uc
, dir
);
2821 invalidate_one_directory(uc
, dir
);
2822 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
2825 void untracked_cache_invalidate_path(struct index_state
*istate
,
2828 if (!istate
->untracked
|| !istate
->untracked
->root
)
2830 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
2831 path
, strlen(path
));
2834 void untracked_cache_remove_from_index(struct index_state
*istate
,
2837 untracked_cache_invalidate_path(istate
, path
);
2840 void untracked_cache_add_to_index(struct index_state
*istate
,
2843 untracked_cache_invalidate_path(istate
, path
);
2846 /* Update gitfile and core.worktree setting to connect work tree and git dir */
2847 void connect_work_tree_and_git_dir(const char *work_tree_
, const char *git_dir_
)
2849 struct strbuf gitfile_sb
= STRBUF_INIT
;
2850 struct strbuf cfg_sb
= STRBUF_INIT
;
2851 struct strbuf rel_path
= STRBUF_INIT
;
2852 char *git_dir
, *work_tree
;
2854 /* Prepare .git file */
2855 strbuf_addf(&gitfile_sb
, "%s/.git", work_tree_
);
2856 if (safe_create_leading_directories_const(gitfile_sb
.buf
))
2857 die(_("could not create directories for %s"), gitfile_sb
.buf
);
2859 /* Prepare config file */
2860 strbuf_addf(&cfg_sb
, "%s/config", git_dir_
);
2861 if (safe_create_leading_directories_const(cfg_sb
.buf
))
2862 die(_("could not create directories for %s"), cfg_sb
.buf
);
2864 git_dir
= real_pathdup(git_dir_
, 1);
2865 work_tree
= real_pathdup(work_tree_
, 1);
2867 /* Write .git file */
2868 write_file(gitfile_sb
.buf
, "gitdir: %s",
2869 relative_path(git_dir
, work_tree
, &rel_path
));
2870 /* Update core.worktree setting */
2871 git_config_set_in_file(cfg_sb
.buf
, "core.worktree",
2872 relative_path(work_tree
, git_dir
, &rel_path
));
2874 strbuf_release(&gitfile_sb
);
2875 strbuf_release(&cfg_sb
);
2876 strbuf_release(&rel_path
);
2882 * Migrate the git directory of the given path from old_git_dir to new_git_dir.
2884 void relocate_gitdir(const char *path
, const char *old_git_dir
, const char *new_git_dir
)
2886 if (rename(old_git_dir
, new_git_dir
) < 0)
2887 die_errno(_("could not migrate git directory from '%s' to '%s'"),
2888 old_git_dir
, new_git_dir
);
2890 connect_work_tree_and_git_dir(path
, new_git_dir
);