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
, int stop_at_first_file
, 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
)
738 * Invalidation increment here is just roughly correct. If
739 * untracked_nr or any of dirs[].recurse is non-zero, we
740 * should increment dir_invalidated too. But that's more
744 uc
->dir_invalidated
++;
747 dir
->untracked_nr
= 0;
748 for (i
= 0; i
< dir
->dirs_nr
; i
++)
749 dir
->dirs
[i
]->recurse
= 0;
753 * Given a file with name "fname", read it (either from disk, or from
754 * an index if 'istate' is non-null), parse it and store the
755 * exclude rules in "el".
757 * If "ss" is not NULL, compute SHA-1 of the exclude file and fill
758 * stat data from disk (only valid if add_excludes returns zero). If
759 * ss_valid is non-zero, "ss" must contain good value as input.
761 static int add_excludes(const char *fname
, const char *base
, int baselen
,
762 struct exclude_list
*el
,
763 struct index_state
*istate
,
764 struct sha1_stat
*sha1_stat
)
767 int fd
, i
, lineno
= 1;
771 fd
= open(fname
, O_RDONLY
);
772 if (fd
< 0 || fstat(fd
, &st
) < 0) {
774 warn_on_fopen_errors(fname
);
778 (buf
= read_skip_worktree_file_from_index(istate
, fname
, &size
, sha1_stat
)) == NULL
)
784 if (buf
[size
-1] != '\n') {
785 buf
= xrealloc(buf
, st_add(size
, 1));
789 size
= xsize_t(st
.st_size
);
792 fill_stat_data(&sha1_stat
->stat
, &st
);
793 hashcpy(sha1_stat
->sha1
, EMPTY_BLOB_SHA1_BIN
);
794 sha1_stat
->valid
= 1;
799 buf
= xmallocz(size
);
800 if (read_in_full(fd
, buf
, size
) != size
) {
809 if (sha1_stat
->valid
&&
810 !match_stat_data_racy(istate
, &sha1_stat
->stat
, &st
))
811 ; /* no content change, ss->sha1 still good */
813 (pos
= index_name_pos(istate
, fname
, strlen(fname
))) >= 0 &&
814 !ce_stage(istate
->cache
[pos
]) &&
815 ce_uptodate(istate
->cache
[pos
]) &&
816 !would_convert_to_git(istate
, fname
))
817 hashcpy(sha1_stat
->sha1
,
818 istate
->cache
[pos
]->oid
.hash
);
820 hash_sha1_file(buf
, size
, "blob", sha1_stat
->sha1
);
821 fill_stat_data(&sha1_stat
->stat
, &st
);
822 sha1_stat
->valid
= 1;
828 if (skip_utf8_bom(&buf
, size
))
829 size
-= buf
- el
->filebuf
;
833 for (i
= 0; i
< size
; i
++) {
834 if (buf
[i
] == '\n') {
835 if (entry
!= buf
+ i
&& entry
[0] != '#') {
836 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
837 trim_trailing_spaces(entry
);
838 add_exclude(entry
, base
, baselen
, el
, lineno
);
847 int add_excludes_from_file_to_list(const char *fname
, const char *base
,
848 int baselen
, struct exclude_list
*el
,
849 struct index_state
*istate
)
851 return add_excludes(fname
, base
, baselen
, el
, istate
, NULL
);
854 struct exclude_list
*add_exclude_list(struct dir_struct
*dir
,
855 int group_type
, const char *src
)
857 struct exclude_list
*el
;
858 struct exclude_list_group
*group
;
860 group
= &dir
->exclude_list_group
[group_type
];
861 ALLOC_GROW(group
->el
, group
->nr
+ 1, group
->alloc
);
862 el
= &group
->el
[group
->nr
++];
863 memset(el
, 0, sizeof(*el
));
869 * Used to set up core.excludesfile and .git/info/exclude lists.
871 static void add_excludes_from_file_1(struct dir_struct
*dir
, const char *fname
,
872 struct sha1_stat
*sha1_stat
)
874 struct exclude_list
*el
;
876 * catch setup_standard_excludes() that's called before
877 * dir->untracked is assigned. That function behaves
878 * differently when dir->untracked is non-NULL.
881 dir
->unmanaged_exclude_files
++;
882 el
= add_exclude_list(dir
, EXC_FILE
, fname
);
883 if (add_excludes(fname
, "", 0, el
, NULL
, sha1_stat
) < 0)
884 die("cannot use %s as an exclude file", fname
);
887 void add_excludes_from_file(struct dir_struct
*dir
, const char *fname
)
889 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
890 add_excludes_from_file_1(dir
, fname
, NULL
);
893 int match_basename(const char *basename
, int basenamelen
,
894 const char *pattern
, int prefix
, int patternlen
,
897 if (prefix
== patternlen
) {
898 if (patternlen
== basenamelen
&&
899 !fspathncmp(pattern
, basename
, basenamelen
))
901 } else if (flags
& EXC_FLAG_ENDSWITH
) {
902 /* "*literal" matching against "fooliteral" */
903 if (patternlen
- 1 <= basenamelen
&&
904 !fspathncmp(pattern
+ 1,
905 basename
+ basenamelen
- (patternlen
- 1),
909 if (fnmatch_icase_mem(pattern
, patternlen
,
910 basename
, basenamelen
,
917 int match_pathname(const char *pathname
, int pathlen
,
918 const char *base
, int baselen
,
919 const char *pattern
, int prefix
, int patternlen
,
926 * match with FNM_PATHNAME; the pattern has base implicitly
929 if (*pattern
== '/') {
936 * baselen does not count the trailing slash. base[] may or
937 * may not end with a trailing slash though.
939 if (pathlen
< baselen
+ 1 ||
940 (baselen
&& pathname
[baselen
] != '/') ||
941 fspathncmp(pathname
, base
, baselen
))
944 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
945 name
= pathname
+ pathlen
- namelen
;
949 * if the non-wildcard part is longer than the
950 * remaining pathname, surely it cannot match.
952 if (prefix
> namelen
)
955 if (fspathncmp(pattern
, name
, prefix
))
958 patternlen
-= prefix
;
963 * If the whole pattern did not have a wildcard,
964 * then our prefix match is all we need; we
965 * do not need to call fnmatch at all.
967 if (!patternlen
&& !namelen
)
971 return fnmatch_icase_mem(pattern
, patternlen
,
977 * Scan the given exclude list in reverse to see whether pathname
978 * should be ignored. The first match (i.e. the last on the list), if
979 * any, determines the fate. Returns the exclude_list element which
980 * matched, or NULL for undecided.
982 static struct exclude
*last_exclude_matching_from_list(const char *pathname
,
984 const char *basename
,
986 struct exclude_list
*el
,
987 struct index_state
*istate
)
989 struct exclude
*exc
= NULL
; /* undecided */
993 return NULL
; /* undefined */
995 for (i
= el
->nr
- 1; 0 <= i
; i
--) {
996 struct exclude
*x
= el
->excludes
[i
];
997 const char *exclude
= x
->pattern
;
998 int prefix
= x
->nowildcardlen
;
1000 if (x
->flags
& EXC_FLAG_MUSTBEDIR
) {
1001 if (*dtype
== DT_UNKNOWN
)
1002 *dtype
= get_dtype(NULL
, istate
, pathname
, pathlen
);
1003 if (*dtype
!= DT_DIR
)
1007 if (x
->flags
& EXC_FLAG_NODIR
) {
1008 if (match_basename(basename
,
1009 pathlen
- (basename
- pathname
),
1010 exclude
, prefix
, x
->patternlen
,
1018 assert(x
->baselen
== 0 || x
->base
[x
->baselen
- 1] == '/');
1019 if (match_pathname(pathname
, pathlen
,
1020 x
->base
, x
->baselen
? x
->baselen
- 1 : 0,
1021 exclude
, prefix
, x
->patternlen
, x
->flags
)) {
1030 * Scan the list and let the last match determine the fate.
1031 * Return 1 for exclude, 0 for include and -1 for undecided.
1033 int is_excluded_from_list(const char *pathname
,
1034 int pathlen
, const char *basename
, int *dtype
,
1035 struct exclude_list
*el
, struct index_state
*istate
)
1037 struct exclude
*exclude
;
1038 exclude
= last_exclude_matching_from_list(pathname
, pathlen
, basename
,
1041 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1042 return -1; /* undecided */
1045 static struct exclude
*last_exclude_matching_from_lists(struct dir_struct
*dir
,
1046 struct index_state
*istate
,
1047 const char *pathname
, int pathlen
, const char *basename
,
1051 struct exclude_list_group
*group
;
1052 struct exclude
*exclude
;
1053 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
1054 group
= &dir
->exclude_list_group
[i
];
1055 for (j
= group
->nr
- 1; j
>= 0; j
--) {
1056 exclude
= last_exclude_matching_from_list(
1057 pathname
, pathlen
, basename
, dtype_p
,
1058 &group
->el
[j
], istate
);
1067 * Loads the per-directory exclude list for the substring of base
1068 * which has a char length of baselen.
1070 static void prep_exclude(struct dir_struct
*dir
,
1071 struct index_state
*istate
,
1072 const char *base
, int baselen
)
1074 struct exclude_list_group
*group
;
1075 struct exclude_list
*el
;
1076 struct exclude_stack
*stk
= NULL
;
1077 struct untracked_cache_dir
*untracked
;
1080 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1083 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1084 * which originate from directories not in the prefix of the
1085 * path being checked.
1087 while ((stk
= dir
->exclude_stack
) != NULL
) {
1088 if (stk
->baselen
<= baselen
&&
1089 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1091 el
= &group
->el
[dir
->exclude_stack
->exclude_ix
];
1092 dir
->exclude_stack
= stk
->prev
;
1093 dir
->exclude
= NULL
;
1094 free((char *)el
->src
); /* see strbuf_detach() below */
1095 clear_exclude_list(el
);
1100 /* Skip traversing into sub directories if the parent is excluded */
1105 * Lazy initialization. All call sites currently just
1106 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1107 * them seems lots of work for little benefit.
1109 if (!dir
->basebuf
.buf
)
1110 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1112 /* Read from the parent directories and push them down. */
1113 current
= stk
? stk
->baselen
: -1;
1114 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1116 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1120 while (current
< baselen
) {
1122 struct sha1_stat sha1_stat
;
1124 stk
= xcalloc(1, sizeof(*stk
));
1129 cp
= strchr(base
+ current
+ 1, '/');
1131 die("oops in prep_exclude");
1134 lookup_untracked(dir
->untracked
, untracked
,
1136 cp
- base
- current
);
1138 stk
->prev
= dir
->exclude_stack
;
1139 stk
->baselen
= cp
- base
;
1140 stk
->exclude_ix
= group
->nr
;
1141 stk
->ucd
= untracked
;
1142 el
= add_exclude_list(dir
, EXC_DIRS
, NULL
);
1143 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1144 assert(stk
->baselen
== dir
->basebuf
.len
);
1146 /* Abort if the directory is excluded */
1149 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1150 dir
->exclude
= last_exclude_matching_from_lists(dir
,
1152 dir
->basebuf
.buf
, stk
->baselen
- 1,
1153 dir
->basebuf
.buf
+ current
, &dt
);
1154 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1156 dir
->exclude
->flags
& EXC_FLAG_NEGATIVE
)
1157 dir
->exclude
= NULL
;
1159 dir
->exclude_stack
= stk
;
1164 /* Try to read per-directory file */
1165 hashclr(sha1_stat
.sha1
);
1166 sha1_stat
.valid
= 0;
1167 if (dir
->exclude_per_dir
&&
1169 * If we know that no files have been added in
1170 * this directory (i.e. valid_cached_dir() has
1171 * been executed and set untracked->valid) ..
1173 (!untracked
|| !untracked
->valid
||
1175 * .. and .gitignore does not exist before
1176 * (i.e. null exclude_sha1). Then we can skip
1177 * loading .gitignore, which would result in
1180 !is_null_sha1(untracked
->exclude_sha1
))) {
1182 * dir->basebuf gets reused by the traversal, but we
1183 * need fname to remain unchanged to ensure the src
1184 * member of each struct exclude correctly
1185 * back-references its source file. Other invocations
1186 * of add_exclude_list provide stable strings, so we
1187 * strbuf_detach() and free() here in the caller.
1189 struct strbuf sb
= STRBUF_INIT
;
1190 strbuf_addbuf(&sb
, &dir
->basebuf
);
1191 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1192 el
->src
= strbuf_detach(&sb
, NULL
);
1193 add_excludes(el
->src
, el
->src
, stk
->baselen
, el
, istate
,
1194 untracked
? &sha1_stat
: NULL
);
1197 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1198 * will first be called in valid_cached_dir() then maybe many
1199 * times more in last_exclude_matching(). When the cache is
1200 * used, last_exclude_matching() will not be called and
1201 * reading .gitignore content will be a waste.
1203 * So when it's called by valid_cached_dir() and we can get
1204 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1205 * modified on work tree), we could delay reading the
1206 * .gitignore content until we absolutely need it in
1207 * last_exclude_matching(). Be careful about ignore rule
1208 * order, though, if you do that.
1211 hashcmp(sha1_stat
.sha1
, untracked
->exclude_sha1
)) {
1212 invalidate_gitignore(dir
->untracked
, untracked
);
1213 hashcpy(untracked
->exclude_sha1
, sha1_stat
.sha1
);
1215 dir
->exclude_stack
= stk
;
1216 current
= stk
->baselen
;
1218 strbuf_setlen(&dir
->basebuf
, baselen
);
1222 * Loads the exclude lists for the directory containing pathname, then
1223 * scans all exclude lists to determine whether pathname is excluded.
1224 * Returns the exclude_list element which matched, or NULL for
1227 struct exclude
*last_exclude_matching(struct dir_struct
*dir
,
1228 struct index_state
*istate
,
1229 const char *pathname
,
1232 int pathlen
= strlen(pathname
);
1233 const char *basename
= strrchr(pathname
, '/');
1234 basename
= (basename
) ? basename
+1 : pathname
;
1236 prep_exclude(dir
, istate
, pathname
, basename
-pathname
);
1239 return dir
->exclude
;
1241 return last_exclude_matching_from_lists(dir
, istate
, pathname
, pathlen
,
1246 * Loads the exclude lists for the directory containing pathname, then
1247 * scans all exclude lists to determine whether pathname is excluded.
1248 * Returns 1 if true, otherwise 0.
1250 int is_excluded(struct dir_struct
*dir
, struct index_state
*istate
,
1251 const char *pathname
, int *dtype_p
)
1253 struct exclude
*exclude
=
1254 last_exclude_matching(dir
, istate
, pathname
, dtype_p
);
1256 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1260 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1262 struct dir_entry
*ent
;
1264 FLEX_ALLOC_MEM(ent
, name
, pathname
, len
);
1269 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
,
1270 struct index_state
*istate
,
1271 const char *pathname
, int len
)
1273 if (index_file_exists(istate
, pathname
, len
, ignore_case
))
1276 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1277 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1280 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
,
1281 struct index_state
*istate
,
1282 const char *pathname
, int len
)
1284 if (!index_name_is_other(istate
, pathname
, len
))
1287 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1288 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1292 index_nonexistent
= 0,
1298 * Do not use the alphabetically sorted index to look up
1299 * the directory name; instead, use the case insensitive
1302 static enum exist_status
directory_exists_in_index_icase(struct index_state
*istate
,
1303 const char *dirname
, int len
)
1305 struct cache_entry
*ce
;
1307 if (index_dir_exists(istate
, dirname
, len
))
1308 return index_directory
;
1310 ce
= index_file_exists(istate
, dirname
, len
, ignore_case
);
1311 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1312 return index_gitdir
;
1314 return index_nonexistent
;
1318 * The index sorts alphabetically by entry name, which
1319 * means that a gitlink sorts as '\0' at the end, while
1320 * a directory (which is defined not as an entry, but as
1321 * the files it contains) will sort with the '/' at the
1324 static enum exist_status
directory_exists_in_index(struct index_state
*istate
,
1325 const char *dirname
, int len
)
1330 return directory_exists_in_index_icase(istate
, dirname
, len
);
1332 pos
= index_name_pos(istate
, dirname
, len
);
1335 while (pos
< istate
->cache_nr
) {
1336 const struct cache_entry
*ce
= istate
->cache
[pos
++];
1337 unsigned char endchar
;
1339 if (strncmp(ce
->name
, dirname
, len
))
1341 endchar
= ce
->name
[len
];
1345 return index_directory
;
1346 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1347 return index_gitdir
;
1349 return index_nonexistent
;
1353 * When we find a directory when traversing the filesystem, we
1354 * have three distinct cases:
1357 * - see it as a directory
1360 * and which one we choose depends on a combination of existing
1361 * git index contents and the flags passed into the directory
1362 * traversal routine.
1364 * Case 1: If we *already* have entries in the index under that
1365 * directory name, we always recurse into the directory to see
1368 * Case 2: If we *already* have that directory name as a gitlink,
1369 * we always continue to see it as a gitlink, regardless of whether
1370 * there is an actual git directory there or not (it might not
1371 * be checked out as a subproject!)
1373 * Case 3: if we didn't have it in the index previously, we
1374 * have a few sub-cases:
1376 * (a) if "show_other_directories" is true, we show it as
1377 * just a directory, unless "hide_empty_directories" is
1378 * also true, in which case we need to check if it contains any
1379 * untracked and / or ignored files.
1380 * (b) if it looks like a git directory, and we don't have
1381 * 'no_gitlinks' set we treat it as a gitlink, and show it
1383 * (c) otherwise, we recurse into it.
1385 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1386 struct index_state
*istate
,
1387 struct untracked_cache_dir
*untracked
,
1388 const char *dirname
, int len
, int baselen
, int exclude
,
1389 const struct pathspec
*pathspec
)
1391 /* The "len-1" is to strip the final '/' */
1392 switch (directory_exists_in_index(istate
, dirname
, len
-1)) {
1393 case index_directory
:
1394 return path_recurse
;
1399 case index_nonexistent
:
1400 if (dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)
1403 (dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1404 (dir
->flags
& DIR_SHOW_IGNORED_TOO_MODE_MATCHING
)) {
1407 * This is an excluded directory and we are
1408 * showing ignored paths that match an exclude
1409 * pattern. (e.g. show directory as ignored
1410 * only if it matches an exclude pattern).
1411 * This path will either be 'path_excluded`
1412 * (if we are showing empty directories or if
1413 * the directory is not empty), or will be
1414 * 'path_none' (empty directory, and we are
1415 * not showing empty directories).
1417 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1418 return path_excluded
;
1420 if (read_directory_recursive(dir
, istate
, dirname
, len
,
1421 untracked
, 1, 1, pathspec
) == path_excluded
)
1422 return path_excluded
;
1426 if (!(dir
->flags
& DIR_NO_GITLINKS
)) {
1427 struct object_id oid
;
1428 if (resolve_gitlink_ref(dirname
, "HEAD", &oid
) == 0)
1429 return exclude
? path_excluded
: path_untracked
;
1431 return path_recurse
;
1434 /* This is the "show_other_directories" case */
1436 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1437 return exclude
? path_excluded
: path_untracked
;
1439 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1440 dirname
+ baselen
, len
- baselen
);
1443 * If this is an excluded directory, then we only need to check if
1444 * the directory contains any files.
1446 return read_directory_recursive(dir
, istate
, dirname
, len
,
1447 untracked
, 1, exclude
, pathspec
);
1451 * This is an inexact early pruning of any recursive directory
1452 * reading - if the path cannot possibly be in the pathspec,
1453 * return true, and we'll skip it early.
1455 static int simplify_away(const char *path
, int pathlen
,
1456 const struct pathspec
*pathspec
)
1460 if (!pathspec
|| !pathspec
->nr
)
1463 GUARD_PATHSPEC(pathspec
,
1472 for (i
= 0; i
< pathspec
->nr
; i
++) {
1473 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1474 int len
= item
->nowildcard_len
;
1478 if (!ps_strncmp(item
, item
->match
, path
, len
))
1486 * This function tells us whether an excluded path matches a
1487 * list of "interesting" pathspecs. That is, whether a path matched
1488 * by any of the pathspecs could possibly be ignored by excluding
1489 * the specified path. This can happen if:
1491 * 1. the path is mentioned explicitly in the pathspec
1493 * 2. the path is a directory prefix of some element in the
1496 static int exclude_matches_pathspec(const char *path
, int pathlen
,
1497 const struct pathspec
*pathspec
)
1501 if (!pathspec
|| !pathspec
->nr
)
1504 GUARD_PATHSPEC(pathspec
,
1512 for (i
= 0; i
< pathspec
->nr
; i
++) {
1513 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1514 int len
= item
->nowildcard_len
;
1516 if (len
== pathlen
&&
1517 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1519 if (len
> pathlen
&&
1520 item
->match
[pathlen
] == '/' &&
1521 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1527 static int get_index_dtype(struct index_state
*istate
,
1528 const char *path
, int len
)
1531 const struct cache_entry
*ce
;
1533 ce
= index_file_exists(istate
, path
, len
, 0);
1535 if (!ce_uptodate(ce
))
1537 if (S_ISGITLINK(ce
->ce_mode
))
1540 * Nobody actually cares about the
1541 * difference between DT_LNK and DT_REG
1546 /* Try to look it up as a directory */
1547 pos
= index_name_pos(istate
, path
, len
);
1551 while (pos
< istate
->cache_nr
) {
1552 ce
= istate
->cache
[pos
++];
1553 if (strncmp(ce
->name
, path
, len
))
1555 if (ce
->name
[len
] > '/')
1557 if (ce
->name
[len
] < '/')
1559 if (!ce_uptodate(ce
))
1560 break; /* continue? */
1566 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
1567 const char *path
, int len
)
1569 int dtype
= de
? DTYPE(de
) : DT_UNKNOWN
;
1572 if (dtype
!= DT_UNKNOWN
)
1574 dtype
= get_index_dtype(istate
, path
, len
);
1575 if (dtype
!= DT_UNKNOWN
)
1577 if (lstat(path
, &st
))
1579 if (S_ISREG(st
.st_mode
))
1581 if (S_ISDIR(st
.st_mode
))
1583 if (S_ISLNK(st
.st_mode
))
1588 static enum path_treatment
treat_one_path(struct dir_struct
*dir
,
1589 struct untracked_cache_dir
*untracked
,
1590 struct index_state
*istate
,
1591 struct strbuf
*path
,
1593 const struct pathspec
*pathspec
,
1594 int dtype
, struct dirent
*de
)
1597 int has_path_in_index
= !!index_file_exists(istate
, path
->buf
, path
->len
, ignore_case
);
1598 enum path_treatment path_treatment
;
1600 if (dtype
== DT_UNKNOWN
)
1601 dtype
= get_dtype(de
, istate
, path
->buf
, path
->len
);
1603 /* Always exclude indexed files */
1604 if (dtype
!= DT_DIR
&& has_path_in_index
)
1608 * When we are looking at a directory P in the working tree,
1609 * there are three cases:
1611 * (1) P exists in the index. Everything inside the directory P in
1612 * the working tree needs to go when P is checked out from the
1615 * (2) P does not exist in the index, but there is P/Q in the index.
1616 * We know P will stay a directory when we check out the contents
1617 * of the index, but we do not know yet if there is a directory
1618 * P/Q in the working tree to be killed, so we need to recurse.
1620 * (3) P does not exist in the index, and there is no P/Q in the index
1621 * to require P to be a directory, either. Only in this case, we
1622 * know that everything inside P will not be killed without
1625 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
1626 (dtype
== DT_DIR
) &&
1627 !has_path_in_index
&&
1628 (directory_exists_in_index(istate
, path
->buf
, path
->len
) == index_nonexistent
))
1631 exclude
= is_excluded(dir
, istate
, path
->buf
, &dtype
);
1634 * Excluded? If we don't explicitly want to show
1635 * ignored files, ignore it
1637 if (exclude
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
1638 return path_excluded
;
1644 strbuf_addch(path
, '/');
1645 path_treatment
= treat_directory(dir
, istate
, untracked
,
1646 path
->buf
, path
->len
,
1647 baselen
, exclude
, pathspec
);
1649 * If 1) we only want to return directories that
1650 * match an exclude pattern and 2) this directory does
1651 * not match an exclude pattern but all of its
1652 * contents are excluded, then indicate that we should
1653 * recurse into this directory (instead of marking the
1654 * directory itself as an ignored path).
1657 path_treatment
== path_excluded
&&
1658 (dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1659 (dir
->flags
& DIR_SHOW_IGNORED_TOO_MODE_MATCHING
))
1660 return path_recurse
;
1661 return path_treatment
;
1664 return exclude
? path_excluded
: path_untracked
;
1668 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
1669 struct untracked_cache_dir
*untracked
,
1670 struct cached_dir
*cdir
,
1671 struct index_state
*istate
,
1672 struct strbuf
*path
,
1674 const struct pathspec
*pathspec
)
1676 strbuf_setlen(path
, baselen
);
1678 strbuf_addstr(path
, cdir
->file
);
1679 return path_untracked
;
1681 strbuf_addstr(path
, cdir
->ucd
->name
);
1682 /* treat_one_path() does this before it calls treat_directory() */
1683 strbuf_complete(path
, '/');
1684 if (cdir
->ucd
->check_only
)
1686 * check_only is set as a result of treat_directory() getting
1687 * to its bottom. Verify again the same set of directories
1688 * with check_only set.
1690 return read_directory_recursive(dir
, istate
, path
->buf
, path
->len
,
1691 cdir
->ucd
, 1, 0, pathspec
);
1693 * We get path_recurse in the first run when
1694 * directory_exists_in_index() returns index_nonexistent. We
1695 * are sure that new changes in the index does not impact the
1696 * outcome. Return now.
1698 return path_recurse
;
1701 static enum path_treatment
treat_path(struct dir_struct
*dir
,
1702 struct untracked_cache_dir
*untracked
,
1703 struct cached_dir
*cdir
,
1704 struct index_state
*istate
,
1705 struct strbuf
*path
,
1707 const struct pathspec
*pathspec
)
1710 struct dirent
*de
= cdir
->de
;
1713 return treat_path_fast(dir
, untracked
, cdir
, istate
, path
,
1715 if (is_dot_or_dotdot(de
->d_name
) || !fspathcmp(de
->d_name
, ".git"))
1717 strbuf_setlen(path
, baselen
);
1718 strbuf_addstr(path
, de
->d_name
);
1719 if (simplify_away(path
->buf
, path
->len
, pathspec
))
1723 return treat_one_path(dir
, untracked
, istate
, path
, baselen
, pathspec
, dtype
, de
);
1726 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
1730 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
1731 dir
->untracked_alloc
);
1732 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
1735 static int valid_cached_dir(struct dir_struct
*dir
,
1736 struct untracked_cache_dir
*untracked
,
1737 struct index_state
*istate
,
1738 struct strbuf
*path
,
1747 * With fsmonitor, we can trust the untracked cache's valid field.
1749 refresh_fsmonitor(istate
);
1750 if (!(dir
->untracked
->use_fsmonitor
&& untracked
->valid
)) {
1751 if (lstat(path
->len
? path
->buf
: ".", &st
)) {
1752 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
1755 if (!untracked
->valid
||
1756 match_stat_data_racy(istate
, &untracked
->stat_data
, &st
)) {
1757 fill_stat_data(&untracked
->stat_data
, &st
);
1762 if (untracked
->check_only
!= !!check_only
)
1766 * prep_exclude will be called eventually on this directory,
1767 * but it's called much later in last_exclude_matching(). We
1768 * need it now to determine the validity of the cache for this
1769 * path. The next calls will be nearly no-op, the way
1770 * prep_exclude() is designed.
1772 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
1773 strbuf_addch(path
, '/');
1774 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
1775 strbuf_setlen(path
, path
->len
- 1);
1777 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
1779 /* hopefully prep_exclude() haven't invalidated this entry... */
1780 return untracked
->valid
;
1783 static int open_cached_dir(struct cached_dir
*cdir
,
1784 struct dir_struct
*dir
,
1785 struct untracked_cache_dir
*untracked
,
1786 struct index_state
*istate
,
1787 struct strbuf
*path
,
1792 memset(cdir
, 0, sizeof(*cdir
));
1793 cdir
->untracked
= untracked
;
1794 if (valid_cached_dir(dir
, untracked
, istate
, path
, check_only
))
1796 c_path
= path
->len
? path
->buf
: ".";
1797 cdir
->fdir
= opendir(c_path
);
1799 warning_errno(_("could not open directory '%s'"), c_path
);
1800 if (dir
->untracked
) {
1801 invalidate_directory(dir
->untracked
, untracked
);
1802 dir
->untracked
->dir_opened
++;
1809 static int read_cached_dir(struct cached_dir
*cdir
)
1812 cdir
->de
= readdir(cdir
->fdir
);
1817 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
1818 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
1828 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
1829 struct untracked_cache_dir
*d
= cdir
->untracked
;
1830 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
1836 static void close_cached_dir(struct cached_dir
*cdir
)
1839 closedir(cdir
->fdir
);
1841 * We have gone through this directory and found no untracked
1842 * entries. Mark it valid.
1844 if (cdir
->untracked
) {
1845 cdir
->untracked
->valid
= 1;
1846 cdir
->untracked
->recurse
= 1;
1851 * Read a directory tree. We currently ignore anything but
1852 * directories, regular files and symlinks. That's because git
1853 * doesn't handle them at all yet. Maybe that will change some
1856 * Also, we ignore the name ".git" (even if it is not a directory).
1857 * That likely will not change.
1859 * If 'stop_at_first_file' is specified, 'path_excluded' is returned
1860 * to signal that a file was found. This is the least significant value that
1861 * indicates that a file was encountered that does not depend on the order of
1862 * whether an untracked or exluded path was encountered first.
1864 * Returns the most significant path_treatment value encountered in the scan.
1865 * If 'stop_at_first_file' is specified, `path_excluded` is the most
1866 * significant path_treatment value that will be returned.
1869 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
1870 struct index_state
*istate
, const char *base
, int baselen
,
1871 struct untracked_cache_dir
*untracked
, int check_only
,
1872 int stop_at_first_file
, const struct pathspec
*pathspec
)
1874 struct cached_dir cdir
;
1875 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
1876 struct strbuf path
= STRBUF_INIT
;
1878 strbuf_add(&path
, base
, baselen
);
1880 if (open_cached_dir(&cdir
, dir
, untracked
, istate
, &path
, check_only
))
1884 untracked
->check_only
= !!check_only
;
1886 while (!read_cached_dir(&cdir
)) {
1887 /* check how the file or directory should be treated */
1888 state
= treat_path(dir
, untracked
, &cdir
, istate
, &path
,
1891 if (state
> dir_state
)
1894 /* recurse into subdir if instructed by treat_path */
1895 if ((state
== path_recurse
) ||
1896 ((state
== path_untracked
) &&
1897 (dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1898 (get_dtype(cdir
.de
, istate
, path
.buf
, path
.len
) == DT_DIR
))) {
1899 struct untracked_cache_dir
*ud
;
1900 ud
= lookup_untracked(dir
->untracked
, untracked
,
1902 path
.len
- baselen
);
1904 read_directory_recursive(dir
, istate
, path
.buf
,
1906 check_only
, stop_at_first_file
, pathspec
);
1907 if (subdir_state
> dir_state
)
1908 dir_state
= subdir_state
;
1912 if (stop_at_first_file
) {
1914 * If stopping at first file, then
1915 * signal that a file was found by
1916 * returning `path_excluded`. This is
1917 * to return a consistent value
1918 * regardless of whether an ignored or
1919 * excluded file happened to be
1922 * In current usage, the
1923 * `stop_at_first_file` is passed when
1924 * an ancestor directory has matched
1925 * an exclude pattern, so any found
1926 * files will be excluded.
1928 if (dir_state
>= path_excluded
) {
1929 dir_state
= path_excluded
;
1934 /* abort early if maximum state has been reached */
1935 if (dir_state
== path_untracked
) {
1937 add_untracked(untracked
, path
.buf
+ baselen
);
1940 /* skip the dir_add_* part */
1944 /* add the path to the appropriate result list */
1947 if (dir
->flags
& DIR_SHOW_IGNORED
)
1948 dir_add_name(dir
, istate
, path
.buf
, path
.len
);
1949 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
1950 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
1951 exclude_matches_pathspec(path
.buf
, path
.len
,
1953 dir_add_ignored(dir
, istate
, path
.buf
, path
.len
);
1956 case path_untracked
:
1957 if (dir
->flags
& DIR_SHOW_IGNORED
)
1959 dir_add_name(dir
, istate
, path
.buf
, path
.len
);
1961 add_untracked(untracked
, path
.buf
+ baselen
);
1968 close_cached_dir(&cdir
);
1970 strbuf_release(&path
);
1975 int cmp_dir_entry(const void *p1
, const void *p2
)
1977 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
1978 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
1980 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
1983 /* check if *out lexically strictly contains *in */
1984 int check_dir_entry_contains(const struct dir_entry
*out
, const struct dir_entry
*in
)
1986 return (out
->len
< in
->len
) &&
1987 (out
->name
[out
->len
- 1] == '/') &&
1988 !memcmp(out
->name
, in
->name
, out
->len
);
1991 static int treat_leading_path(struct dir_struct
*dir
,
1992 struct index_state
*istate
,
1993 const char *path
, int len
,
1994 const struct pathspec
*pathspec
)
1996 struct strbuf sb
= STRBUF_INIT
;
1997 int baselen
, rc
= 0;
1999 int old_flags
= dir
->flags
;
2001 while (len
&& path
[len
- 1] == '/')
2006 dir
->flags
&= ~DIR_SHOW_OTHER_DIRECTORIES
;
2008 cp
= path
+ baselen
+ !!baselen
;
2009 cp
= memchr(cp
, '/', path
+ len
- cp
);
2013 baselen
= cp
- path
;
2014 strbuf_setlen(&sb
, 0);
2015 strbuf_add(&sb
, path
, baselen
);
2016 if (!is_directory(sb
.buf
))
2018 if (simplify_away(sb
.buf
, sb
.len
, pathspec
))
2020 if (treat_one_path(dir
, NULL
, istate
, &sb
, baselen
, pathspec
,
2021 DT_DIR
, NULL
) == path_none
)
2022 break; /* do not recurse into it */
2023 if (len
<= baselen
) {
2025 break; /* finished checking */
2028 strbuf_release(&sb
);
2029 dir
->flags
= old_flags
;
2033 static const char *get_ident_string(void)
2035 static struct strbuf sb
= STRBUF_INIT
;
2040 if (uname(&uts
) < 0)
2041 die_errno(_("failed to get kernel name and information"));
2042 strbuf_addf(&sb
, "Location %s, system %s", get_git_work_tree(),
2047 static int ident_in_untracked(const struct untracked_cache
*uc
)
2050 * Previous git versions may have saved many NUL separated
2051 * strings in the "ident" field, but it is insane to manage
2052 * many locations, so just take care of the first one.
2055 return !strcmp(uc
->ident
.buf
, get_ident_string());
2058 static void set_untracked_ident(struct untracked_cache
*uc
)
2060 strbuf_reset(&uc
->ident
);
2061 strbuf_addstr(&uc
->ident
, get_ident_string());
2064 * This strbuf used to contain a list of NUL separated
2065 * strings, so save NUL too for backward compatibility.
2067 strbuf_addch(&uc
->ident
, 0);
2070 static void new_untracked_cache(struct index_state
*istate
)
2072 struct untracked_cache
*uc
= xcalloc(1, sizeof(*uc
));
2073 strbuf_init(&uc
->ident
, 100);
2074 uc
->exclude_per_dir
= ".gitignore";
2075 /* should be the same flags used by git-status */
2076 uc
->dir_flags
= DIR_SHOW_OTHER_DIRECTORIES
| DIR_HIDE_EMPTY_DIRECTORIES
;
2077 set_untracked_ident(uc
);
2078 istate
->untracked
= uc
;
2079 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2082 void add_untracked_cache(struct index_state
*istate
)
2084 if (!istate
->untracked
) {
2085 new_untracked_cache(istate
);
2087 if (!ident_in_untracked(istate
->untracked
)) {
2088 free_untracked_cache(istate
->untracked
);
2089 new_untracked_cache(istate
);
2094 void remove_untracked_cache(struct index_state
*istate
)
2096 if (istate
->untracked
) {
2097 free_untracked_cache(istate
->untracked
);
2098 istate
->untracked
= NULL
;
2099 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2103 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
2105 const struct pathspec
*pathspec
)
2107 struct untracked_cache_dir
*root
;
2109 if (!dir
->untracked
|| getenv("GIT_DISABLE_UNTRACKED_CACHE"))
2113 * We only support $GIT_DIR/info/exclude and core.excludesfile
2114 * as the global ignore rule files. Any other additions
2115 * (e.g. from command line) invalidate the cache. This
2116 * condition also catches running setup_standard_excludes()
2117 * before setting dir->untracked!
2119 if (dir
->unmanaged_exclude_files
)
2123 * Optimize for the main use case only: whole-tree git
2124 * status. More work involved in treat_leading_path() if we
2125 * use cache on just a subset of the worktree. pathspec
2126 * support could make the matter even worse.
2128 if (base_len
|| (pathspec
&& pathspec
->nr
))
2131 /* Different set of flags may produce different results */
2132 if (dir
->flags
!= dir
->untracked
->dir_flags
||
2134 * See treat_directory(), case index_nonexistent. Without
2135 * this flag, we may need to also cache .git file content
2136 * for the resolve_gitlink_ref() call, which we don't.
2138 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
2139 /* We don't support collecting ignore files */
2140 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
2141 DIR_COLLECT_IGNORED
)))
2145 * If we use .gitignore in the cache and now you change it to
2146 * .gitexclude, everything will go wrong.
2148 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
2149 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
2153 * EXC_CMDL is not considered in the cache. If people set it,
2156 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
2159 if (!ident_in_untracked(dir
->untracked
)) {
2160 warning(_("Untracked cache is disabled on this system or location."));
2164 if (!dir
->untracked
->root
) {
2165 const int len
= sizeof(*dir
->untracked
->root
);
2166 dir
->untracked
->root
= xmalloc(len
);
2167 memset(dir
->untracked
->root
, 0, len
);
2170 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2171 root
= dir
->untracked
->root
;
2172 if (hashcmp(dir
->ss_info_exclude
.sha1
,
2173 dir
->untracked
->ss_info_exclude
.sha1
)) {
2174 invalidate_gitignore(dir
->untracked
, root
);
2175 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2177 if (hashcmp(dir
->ss_excludes_file
.sha1
,
2178 dir
->untracked
->ss_excludes_file
.sha1
)) {
2179 invalidate_gitignore(dir
->untracked
, root
);
2180 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2183 /* Make sure this directory is not dropped out at saving phase */
2188 int read_directory(struct dir_struct
*dir
, struct index_state
*istate
,
2189 const char *path
, int len
, const struct pathspec
*pathspec
)
2191 struct untracked_cache_dir
*untracked
;
2193 if (has_symlink_leading_path(path
, len
))
2196 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2199 * make sure untracked cache code path is disabled,
2200 * e.g. prep_exclude()
2202 dir
->untracked
= NULL
;
2203 if (!len
|| treat_leading_path(dir
, istate
, path
, len
, pathspec
))
2204 read_directory_recursive(dir
, istate
, path
, len
, untracked
, 0, 0, pathspec
);
2205 QSORT(dir
->entries
, dir
->nr
, cmp_dir_entry
);
2206 QSORT(dir
->ignored
, dir
->ignored_nr
, cmp_dir_entry
);
2209 * If DIR_SHOW_IGNORED_TOO is set, read_directory_recursive() will
2210 * also pick up untracked contents of untracked dirs; by default
2211 * we discard these, but given DIR_KEEP_UNTRACKED_CONTENTS we do not.
2213 if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
2214 !(dir
->flags
& DIR_KEEP_UNTRACKED_CONTENTS
)) {
2217 /* remove from dir->entries untracked contents of untracked dirs */
2218 for (i
= j
= 0; j
< dir
->nr
; j
++) {
2220 check_dir_entry_contains(dir
->entries
[i
- 1], dir
->entries
[j
])) {
2221 FREE_AND_NULL(dir
->entries
[j
]);
2223 dir
->entries
[i
++] = dir
->entries
[j
];
2230 if (dir
->untracked
) {
2231 static struct trace_key trace_untracked_stats
= TRACE_KEY_INIT(UNTRACKED_STATS
);
2232 trace_printf_key(&trace_untracked_stats
,
2233 "node creation: %u\n"
2234 "gitignore invalidation: %u\n"
2235 "directory invalidation: %u\n"
2237 dir
->untracked
->dir_created
,
2238 dir
->untracked
->gitignore_invalidated
,
2239 dir
->untracked
->dir_invalidated
,
2240 dir
->untracked
->dir_opened
);
2241 if (dir
->untracked
== istate
->untracked
&&
2242 (dir
->untracked
->dir_opened
||
2243 dir
->untracked
->gitignore_invalidated
||
2244 dir
->untracked
->dir_invalidated
))
2245 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2246 if (dir
->untracked
!= istate
->untracked
) {
2247 FREE_AND_NULL(dir
->untracked
);
2253 int file_exists(const char *f
)
2256 return lstat(f
, &sb
) == 0;
2259 static int cmp_icase(char a
, char b
)
2264 return toupper(a
) - toupper(b
);
2269 * Given two normalized paths (a trailing slash is ok), if subdir is
2270 * outside dir, return -1. Otherwise return the offset in subdir that
2271 * can be used as relative path to dir.
2273 int dir_inside_of(const char *subdir
, const char *dir
)
2277 assert(dir
&& subdir
&& *dir
&& *subdir
);
2279 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2285 /* hel[p]/me vs hel[l]/yeah */
2286 if (*dir
&& *subdir
)
2290 return !*dir
? offset
: -1; /* same dir */
2292 /* foo/[b]ar vs foo/[] */
2293 if (is_dir_sep(dir
[-1]))
2294 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2296 /* foo[/]bar vs foo[] */
2297 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2300 int is_inside_dir(const char *dir
)
2309 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2314 int is_empty_dir(const char *path
)
2316 DIR *dir
= opendir(path
);
2323 while ((e
= readdir(dir
)) != NULL
)
2324 if (!is_dot_or_dotdot(e
->d_name
)) {
2333 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2337 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2338 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2339 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2340 struct object_id submodule_head
;
2342 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2343 !resolve_gitlink_ref(path
->buf
, "HEAD", &submodule_head
)) {
2344 /* Do not descend and nuke a nested git work tree. */
2350 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2351 dir
= opendir(path
->buf
);
2353 if (errno
== ENOENT
)
2354 return keep_toplevel
? -1 : 0;
2355 else if (errno
== EACCES
&& !keep_toplevel
)
2357 * An empty dir could be removable even if it
2360 return rmdir(path
->buf
);
2364 strbuf_complete(path
, '/');
2367 while ((e
= readdir(dir
)) != NULL
) {
2369 if (is_dot_or_dotdot(e
->d_name
))
2372 strbuf_setlen(path
, len
);
2373 strbuf_addstr(path
, e
->d_name
);
2374 if (lstat(path
->buf
, &st
)) {
2375 if (errno
== ENOENT
)
2377 * file disappeared, which is what we
2382 } else if (S_ISDIR(st
.st_mode
)) {
2383 if (!remove_dir_recurse(path
, flag
, &kept_down
))
2384 continue; /* happy */
2385 } else if (!only_empty
&&
2386 (!unlink(path
->buf
) || errno
== ENOENT
)) {
2387 continue; /* happy, too */
2390 /* path too long, stat fails, or non-directory still exists */
2396 strbuf_setlen(path
, original_len
);
2397 if (!ret
&& !keep_toplevel
&& !kept_down
)
2398 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
2401 * report the uplevel that it is not an error that we
2402 * did not rmdir() our directory.
2408 int remove_dir_recursively(struct strbuf
*path
, int flag
)
2410 return remove_dir_recurse(path
, flag
, NULL
);
2413 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
2415 void setup_standard_excludes(struct dir_struct
*dir
)
2417 dir
->exclude_per_dir
= ".gitignore";
2419 /* core.excludefile defaulting to $XDG_HOME/git/ignore */
2421 excludes_file
= xdg_config_home("ignore");
2422 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
2423 add_excludes_from_file_1(dir
, excludes_file
,
2424 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
2426 /* per repository user preference */
2427 if (startup_info
->have_repository
) {
2428 const char *path
= git_path_info_exclude();
2429 if (!access_or_warn(path
, R_OK
, 0))
2430 add_excludes_from_file_1(dir
, path
,
2431 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
2435 int remove_path(const char *name
)
2439 if (unlink(name
) && !is_missing_file_error(errno
))
2442 slash
= strrchr(name
, '/');
2444 char *dirs
= xstrdup(name
);
2445 slash
= dirs
+ (slash
- name
);
2448 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
2455 * Frees memory within dir which was allocated for exclude lists and
2456 * the exclude_stack. Does not free dir itself.
2458 void clear_directory(struct dir_struct
*dir
)
2461 struct exclude_list_group
*group
;
2462 struct exclude_list
*el
;
2463 struct exclude_stack
*stk
;
2465 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
2466 group
= &dir
->exclude_list_group
[i
];
2467 for (j
= 0; j
< group
->nr
; j
++) {
2470 free((char *)el
->src
);
2471 clear_exclude_list(el
);
2476 stk
= dir
->exclude_stack
;
2478 struct exclude_stack
*prev
= stk
->prev
;
2482 strbuf_release(&dir
->basebuf
);
2485 struct ondisk_untracked_cache
{
2486 struct stat_data info_exclude_stat
;
2487 struct stat_data excludes_file_stat
;
2489 unsigned char info_exclude_sha1
[20];
2490 unsigned char excludes_file_sha1
[20];
2491 char exclude_per_dir
[FLEX_ARRAY
];
2494 #define ouc_offset(x) offsetof(struct ondisk_untracked_cache, x)
2495 #define ouc_size(len) (ouc_offset(exclude_per_dir) + len + 1)
2498 int index
; /* number of written untracked_cache_dir */
2499 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
2500 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
2501 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
2503 struct strbuf sb_stat
;
2504 struct strbuf sb_sha1
;
2507 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
2509 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
2510 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
2511 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
2512 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
2513 to
->sd_dev
= htonl(from
->sd_dev
);
2514 to
->sd_ino
= htonl(from
->sd_ino
);
2515 to
->sd_uid
= htonl(from
->sd_uid
);
2516 to
->sd_gid
= htonl(from
->sd_gid
);
2517 to
->sd_size
= htonl(from
->sd_size
);
2520 static void write_one_dir(struct untracked_cache_dir
*untracked
,
2521 struct write_data
*wd
)
2523 struct stat_data stat_data
;
2524 struct strbuf
*out
= &wd
->out
;
2525 unsigned char intbuf
[16];
2526 unsigned int intlen
, value
;
2527 int i
= wd
->index
++;
2530 * untracked_nr should be reset whenever valid is clear, but
2533 if (!untracked
->valid
) {
2534 untracked
->untracked_nr
= 0;
2535 untracked
->check_only
= 0;
2538 if (untracked
->check_only
)
2539 ewah_set(wd
->check_only
, i
);
2540 if (untracked
->valid
) {
2541 ewah_set(wd
->valid
, i
);
2542 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
2543 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
2545 if (!is_null_sha1(untracked
->exclude_sha1
)) {
2546 ewah_set(wd
->sha1_valid
, i
);
2547 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_sha1
, 20);
2550 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
2551 strbuf_add(out
, intbuf
, intlen
);
2553 /* skip non-recurse directories */
2554 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
2555 if (untracked
->dirs
[i
]->recurse
)
2557 intlen
= encode_varint(value
, intbuf
);
2558 strbuf_add(out
, intbuf
, intlen
);
2560 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
2562 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
2563 strbuf_add(out
, untracked
->untracked
[i
],
2564 strlen(untracked
->untracked
[i
]) + 1);
2566 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
2567 if (untracked
->dirs
[i
]->recurse
)
2568 write_one_dir(untracked
->dirs
[i
], wd
);
2571 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
2573 struct ondisk_untracked_cache
*ouc
;
2574 struct write_data wd
;
2575 unsigned char varbuf
[16];
2577 size_t len
= strlen(untracked
->exclude_per_dir
);
2579 FLEX_ALLOC_MEM(ouc
, exclude_per_dir
, untracked
->exclude_per_dir
, len
);
2580 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
2581 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
2582 hashcpy(ouc
->info_exclude_sha1
, untracked
->ss_info_exclude
.sha1
);
2583 hashcpy(ouc
->excludes_file_sha1
, untracked
->ss_excludes_file
.sha1
);
2584 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
2586 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
2587 strbuf_add(out
, varbuf
, varint_len
);
2588 strbuf_addbuf(out
, &untracked
->ident
);
2590 strbuf_add(out
, ouc
, ouc_size(len
));
2593 if (!untracked
->root
) {
2594 varint_len
= encode_varint(0, varbuf
);
2595 strbuf_add(out
, varbuf
, varint_len
);
2600 wd
.check_only
= ewah_new();
2601 wd
.valid
= ewah_new();
2602 wd
.sha1_valid
= ewah_new();
2603 strbuf_init(&wd
.out
, 1024);
2604 strbuf_init(&wd
.sb_stat
, 1024);
2605 strbuf_init(&wd
.sb_sha1
, 1024);
2606 write_one_dir(untracked
->root
, &wd
);
2608 varint_len
= encode_varint(wd
.index
, varbuf
);
2609 strbuf_add(out
, varbuf
, varint_len
);
2610 strbuf_addbuf(out
, &wd
.out
);
2611 ewah_serialize_strbuf(wd
.valid
, out
);
2612 ewah_serialize_strbuf(wd
.check_only
, out
);
2613 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
2614 strbuf_addbuf(out
, &wd
.sb_stat
);
2615 strbuf_addbuf(out
, &wd
.sb_sha1
);
2616 strbuf_addch(out
, '\0'); /* safe guard for string lists */
2618 ewah_free(wd
.valid
);
2619 ewah_free(wd
.check_only
);
2620 ewah_free(wd
.sha1_valid
);
2621 strbuf_release(&wd
.out
);
2622 strbuf_release(&wd
.sb_stat
);
2623 strbuf_release(&wd
.sb_sha1
);
2626 static void free_untracked(struct untracked_cache_dir
*ucd
)
2631 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
2632 free_untracked(ucd
->dirs
[i
]);
2633 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
2634 free(ucd
->untracked
[i
]);
2635 free(ucd
->untracked
);
2640 void free_untracked_cache(struct untracked_cache
*uc
)
2643 free_untracked(uc
->root
);
2649 struct untracked_cache_dir
**ucd
;
2650 struct ewah_bitmap
*check_only
;
2651 struct ewah_bitmap
*valid
;
2652 struct ewah_bitmap
*sha1_valid
;
2653 const unsigned char *data
;
2654 const unsigned char *end
;
2657 static void stat_data_from_disk(struct stat_data
*to
, const unsigned char *data
)
2659 memcpy(to
, data
, sizeof(*to
));
2660 to
->sd_ctime
.sec
= ntohl(to
->sd_ctime
.sec
);
2661 to
->sd_ctime
.nsec
= ntohl(to
->sd_ctime
.nsec
);
2662 to
->sd_mtime
.sec
= ntohl(to
->sd_mtime
.sec
);
2663 to
->sd_mtime
.nsec
= ntohl(to
->sd_mtime
.nsec
);
2664 to
->sd_dev
= ntohl(to
->sd_dev
);
2665 to
->sd_ino
= ntohl(to
->sd_ino
);
2666 to
->sd_uid
= ntohl(to
->sd_uid
);
2667 to
->sd_gid
= ntohl(to
->sd_gid
);
2668 to
->sd_size
= ntohl(to
->sd_size
);
2671 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
2672 struct read_data
*rd
)
2674 struct untracked_cache_dir ud
, *untracked
;
2675 const unsigned char *next
, *data
= rd
->data
, *end
= rd
->end
;
2679 memset(&ud
, 0, sizeof(ud
));
2682 value
= decode_varint(&next
);
2686 ud
.untracked_alloc
= value
;
2687 ud
.untracked_nr
= value
;
2688 if (ud
.untracked_nr
)
2689 ALLOC_ARRAY(ud
.untracked
, ud
.untracked_nr
);
2693 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&next
);
2696 ALLOC_ARRAY(ud
.dirs
, ud
.dirs_nr
);
2699 len
= strlen((const char *)data
);
2700 next
= data
+ len
+ 1;
2703 *untracked_
= untracked
= xmalloc(st_add(sizeof(*untracked
), len
));
2704 memcpy(untracked
, &ud
, sizeof(ud
));
2705 memcpy(untracked
->name
, data
, len
+ 1);
2708 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
2709 len
= strlen((const char *)data
);
2710 next
= data
+ len
+ 1;
2713 untracked
->untracked
[i
] = xstrdup((const char*)data
);
2717 rd
->ucd
[rd
->index
++] = untracked
;
2720 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
2721 len
= read_one_dir(untracked
->dirs
+ i
, rd
);
2728 static void set_check_only(size_t pos
, void *cb
)
2730 struct read_data
*rd
= cb
;
2731 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2735 static void read_stat(size_t pos
, void *cb
)
2737 struct read_data
*rd
= cb
;
2738 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2739 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
2740 rd
->data
= rd
->end
+ 1;
2743 stat_data_from_disk(&ud
->stat_data
, rd
->data
);
2744 rd
->data
+= sizeof(struct stat_data
);
2748 static void read_sha1(size_t pos
, void *cb
)
2750 struct read_data
*rd
= cb
;
2751 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2752 if (rd
->data
+ 20 > rd
->end
) {
2753 rd
->data
= rd
->end
+ 1;
2756 hashcpy(ud
->exclude_sha1
, rd
->data
);
2760 static void load_sha1_stat(struct sha1_stat
*sha1_stat
,
2761 const unsigned char *data
,
2762 const unsigned char *sha1
)
2764 stat_data_from_disk(&sha1_stat
->stat
, data
);
2765 hashcpy(sha1_stat
->sha1
, sha1
);
2766 sha1_stat
->valid
= 1;
2769 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
2771 struct untracked_cache
*uc
;
2772 struct read_data rd
;
2773 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
2776 const char *exclude_per_dir
;
2778 if (sz
<= 1 || end
[-1] != '\0')
2782 ident_len
= decode_varint(&next
);
2783 if (next
+ ident_len
> end
)
2785 ident
= (const char *)next
;
2788 if (next
+ ouc_size(0) > end
)
2791 uc
= xcalloc(1, sizeof(*uc
));
2792 strbuf_init(&uc
->ident
, ident_len
);
2793 strbuf_add(&uc
->ident
, ident
, ident_len
);
2794 load_sha1_stat(&uc
->ss_info_exclude
,
2795 next
+ ouc_offset(info_exclude_stat
),
2796 next
+ ouc_offset(info_exclude_sha1
));
2797 load_sha1_stat(&uc
->ss_excludes_file
,
2798 next
+ ouc_offset(excludes_file_stat
),
2799 next
+ ouc_offset(excludes_file_sha1
));
2800 uc
->dir_flags
= get_be32(next
+ ouc_offset(dir_flags
));
2801 exclude_per_dir
= (const char *)next
+ ouc_offset(exclude_per_dir
);
2802 uc
->exclude_per_dir
= xstrdup(exclude_per_dir
);
2803 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
2804 next
+= ouc_size(strlen(exclude_per_dir
));
2808 len
= decode_varint(&next
);
2809 if (next
> end
|| len
== 0)
2812 rd
.valid
= ewah_new();
2813 rd
.check_only
= ewah_new();
2814 rd
.sha1_valid
= ewah_new();
2818 ALLOC_ARRAY(rd
.ucd
, len
);
2820 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
2824 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
2829 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
2834 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
2838 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
2839 rd
.data
= next
+ len
;
2840 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
2841 ewah_each_bit(rd
.sha1_valid
, read_sha1
, &rd
);
2846 ewah_free(rd
.valid
);
2847 ewah_free(rd
.check_only
);
2848 ewah_free(rd
.sha1_valid
);
2851 free_untracked_cache(uc
);
2857 static void invalidate_one_directory(struct untracked_cache
*uc
,
2858 struct untracked_cache_dir
*ucd
)
2860 uc
->dir_invalidated
++;
2862 ucd
->untracked_nr
= 0;
2866 * Normally when an entry is added or removed from a directory,
2867 * invalidating that directory is enough. No need to touch its
2868 * ancestors. When a directory is shown as "foo/bar/" in git-status
2869 * however, deleting or adding an entry may have cascading effect.
2871 * Say the "foo/bar/file" has become untracked, we need to tell the
2872 * untracked_cache_dir of "foo" that "bar/" is not an untracked
2873 * directory any more (because "bar" is managed by foo as an untracked
2876 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
2877 * was the last untracked entry in the entire "foo", we should show
2878 * "foo/" instead. Which means we have to invalidate past "bar" up to
2881 * This function traverses all directories from root to leaf. If there
2882 * is a chance of one of the above cases happening, we invalidate back
2883 * to root. Otherwise we just invalidate the leaf. There may be a more
2884 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
2885 * detect these cases and avoid unnecessary invalidation, for example,
2886 * checking for the untracked entry named "bar/" in "foo", but for now
2887 * stick to something safe and simple.
2889 static int invalidate_one_component(struct untracked_cache
*uc
,
2890 struct untracked_cache_dir
*dir
,
2891 const char *path
, int len
)
2893 const char *rest
= strchr(path
, '/');
2896 int component_len
= rest
- path
;
2897 struct untracked_cache_dir
*d
=
2898 lookup_untracked(uc
, dir
, path
, component_len
);
2900 invalidate_one_component(uc
, d
, rest
+ 1,
2901 len
- (component_len
+ 1));
2903 invalidate_one_directory(uc
, dir
);
2907 invalidate_one_directory(uc
, dir
);
2908 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
2911 void untracked_cache_invalidate_path(struct index_state
*istate
,
2912 const char *path
, int safe_path
)
2914 if (!istate
->untracked
|| !istate
->untracked
->root
)
2916 if (!safe_path
&& !verify_path(path
))
2918 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
2919 path
, strlen(path
));
2922 void untracked_cache_remove_from_index(struct index_state
*istate
,
2925 untracked_cache_invalidate_path(istate
, path
, 1);
2928 void untracked_cache_add_to_index(struct index_state
*istate
,
2931 untracked_cache_invalidate_path(istate
, path
, 1);
2934 /* Update gitfile and core.worktree setting to connect work tree and git dir */
2935 void connect_work_tree_and_git_dir(const char *work_tree_
, const char *git_dir_
)
2937 struct strbuf gitfile_sb
= STRBUF_INIT
;
2938 struct strbuf cfg_sb
= STRBUF_INIT
;
2939 struct strbuf rel_path
= STRBUF_INIT
;
2940 char *git_dir
, *work_tree
;
2942 /* Prepare .git file */
2943 strbuf_addf(&gitfile_sb
, "%s/.git", work_tree_
);
2944 if (safe_create_leading_directories_const(gitfile_sb
.buf
))
2945 die(_("could not create directories for %s"), gitfile_sb
.buf
);
2947 /* Prepare config file */
2948 strbuf_addf(&cfg_sb
, "%s/config", git_dir_
);
2949 if (safe_create_leading_directories_const(cfg_sb
.buf
))
2950 die(_("could not create directories for %s"), cfg_sb
.buf
);
2952 git_dir
= real_pathdup(git_dir_
, 1);
2953 work_tree
= real_pathdup(work_tree_
, 1);
2955 /* Write .git file */
2956 write_file(gitfile_sb
.buf
, "gitdir: %s",
2957 relative_path(git_dir
, work_tree
, &rel_path
));
2958 /* Update core.worktree setting */
2959 git_config_set_in_file(cfg_sb
.buf
, "core.worktree",
2960 relative_path(work_tree
, git_dir
, &rel_path
));
2962 strbuf_release(&gitfile_sb
);
2963 strbuf_release(&cfg_sb
);
2964 strbuf_release(&rel_path
);
2970 * Migrate the git directory of the given path from old_git_dir to new_git_dir.
2972 void relocate_gitdir(const char *path
, const char *old_git_dir
, const char *new_git_dir
)
2974 if (rename(old_git_dir
, new_git_dir
) < 0)
2975 die_errno(_("could not migrate git directory from '%s' to '%s'"),
2976 old_git_dir
, new_git_dir
);
2978 connect_work_tree_and_git_dir(path
, new_git_dir
);