2 * This handles recursive filename detection with exclude
3 * files, index knowledge etc..
5 * See Documentation/technical/api-directory-listing.txt
7 * Copyright (C) Linus Torvalds, 2005-2006
8 * Junio Hamano, 2005-2006
10 #define NO_THE_INDEX_COMPATIBILITY_MACROS
15 #include "wildmatch.h"
19 #include "ewah/ewok.h"
22 * Tells read_directory_recursive how a file or directory should be treated.
23 * Values are ordered by significance, e.g. if a directory contains both
24 * excluded and untracked files, it is listed as untracked because
25 * path_untracked > path_excluded.
35 * Support data structure for our opendir/readdir/closedir wrappers
39 struct untracked_cache_dir
*untracked
;
45 struct untracked_cache_dir
*ucd
;
48 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
49 struct index_state
*istate
, const char *path
, int len
,
50 struct untracked_cache_dir
*untracked
,
51 int check_only
, const struct pathspec
*pathspec
);
52 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
53 const char *path
, int len
);
55 int count_slashes(const char *s
)
64 int fspathcmp(const char *a
, const char *b
)
66 return ignore_case
? strcasecmp(a
, b
) : strcmp(a
, b
);
69 int fspathncmp(const char *a
, const char *b
, size_t count
)
71 return ignore_case
? strncasecmp(a
, b
, count
) : strncmp(a
, b
, count
);
74 int git_fnmatch(const struct pathspec_item
*item
,
75 const char *pattern
, const char *string
,
79 if (ps_strncmp(item
, pattern
, string
, prefix
))
84 if (item
->flags
& PATHSPEC_ONESTAR
) {
85 int pattern_len
= strlen(++pattern
);
86 int string_len
= strlen(string
);
87 return string_len
< pattern_len
||
88 ps_strcmp(item
, pattern
,
89 string
+ string_len
- pattern_len
);
91 if (item
->magic
& PATHSPEC_GLOB
)
92 return wildmatch(pattern
, string
,
94 (item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0));
96 /* wildmatch has not learned no FNM_PATHNAME mode yet */
97 return wildmatch(pattern
, string
,
98 item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0);
101 static int fnmatch_icase_mem(const char *pattern
, int patternlen
,
102 const char *string
, int stringlen
,
106 struct strbuf pat_buf
= STRBUF_INIT
;
107 struct strbuf str_buf
= STRBUF_INIT
;
108 const char *use_pat
= pattern
;
109 const char *use_str
= string
;
111 if (pattern
[patternlen
]) {
112 strbuf_add(&pat_buf
, pattern
, patternlen
);
113 use_pat
= pat_buf
.buf
;
115 if (string
[stringlen
]) {
116 strbuf_add(&str_buf
, string
, stringlen
);
117 use_str
= str_buf
.buf
;
121 flags
|= WM_CASEFOLD
;
122 match_status
= wildmatch(use_pat
, use_str
, flags
);
124 strbuf_release(&pat_buf
);
125 strbuf_release(&str_buf
);
130 static size_t common_prefix_len(const struct pathspec
*pathspec
)
136 * ":(icase)path" is treated as a pathspec full of
137 * wildcard. In other words, only prefix is considered common
138 * prefix. If the pathspec is abc/foo abc/bar, running in
139 * subdir xyz, the common prefix is still xyz, not xuz/abc as
142 GUARD_PATHSPEC(pathspec
,
151 for (n
= 0; n
< pathspec
->nr
; n
++) {
152 size_t i
= 0, len
= 0, item_len
;
153 if (pathspec
->items
[n
].magic
& PATHSPEC_EXCLUDE
)
155 if (pathspec
->items
[n
].magic
& PATHSPEC_ICASE
)
156 item_len
= pathspec
->items
[n
].prefix
;
158 item_len
= pathspec
->items
[n
].nowildcard_len
;
159 while (i
< item_len
&& (n
== 0 || i
< max
)) {
160 char c
= pathspec
->items
[n
].match
[i
];
161 if (c
!= pathspec
->items
[0].match
[i
])
167 if (n
== 0 || len
< max
) {
177 * Returns a copy of the longest leading path common among all
180 char *common_prefix(const struct pathspec
*pathspec
)
182 unsigned long len
= common_prefix_len(pathspec
);
184 return len
? xmemdupz(pathspec
->items
[0].match
, len
) : NULL
;
187 int fill_directory(struct dir_struct
*dir
,
188 struct index_state
*istate
,
189 const struct pathspec
*pathspec
)
195 * Calculate common prefix for the pathspec, and
196 * use that to optimize the directory walk
198 prefix_len
= common_prefix_len(pathspec
);
199 prefix
= prefix_len
? pathspec
->items
[0].match
: "";
201 /* Read the directory and prune it */
202 read_directory(dir
, istate
, prefix
, prefix_len
, pathspec
);
207 int within_depth(const char *name
, int namelen
,
208 int depth
, int max_depth
)
210 const char *cp
= name
, *cpe
= name
+ namelen
;
216 if (depth
> max_depth
)
222 #define DO_MATCH_EXCLUDE (1<<0)
223 #define DO_MATCH_DIRECTORY (1<<1)
224 #define DO_MATCH_SUBMODULE (1<<2)
226 static int match_attrs(const char *name
, int namelen
,
227 const struct pathspec_item
*item
)
231 git_check_attr(name
, item
->attr_check
);
232 for (i
= 0; i
< item
->attr_match_nr
; i
++) {
235 enum attr_match_mode match_mode
;
237 value
= item
->attr_check
->items
[i
].value
;
238 match_mode
= item
->attr_match
[i
].match_mode
;
240 if (ATTR_TRUE(value
))
241 matched
= (match_mode
== MATCH_SET
);
242 else if (ATTR_FALSE(value
))
243 matched
= (match_mode
== MATCH_UNSET
);
244 else if (ATTR_UNSET(value
))
245 matched
= (match_mode
== MATCH_UNSPECIFIED
);
247 matched
= (match_mode
== MATCH_VALUE
&&
248 !strcmp(item
->attr_match
[i
].value
, value
));
257 * Does 'match' match the given name?
258 * A match is found if
260 * (1) the 'match' string is leading directory of 'name', or
261 * (2) the 'match' string is a wildcard and matches 'name', or
262 * (3) the 'match' string is exactly the same as 'name'.
264 * and the return value tells which case it was.
266 * It returns 0 when there is no match.
268 static int match_pathspec_item(const struct pathspec_item
*item
, int prefix
,
269 const char *name
, int namelen
, unsigned flags
)
271 /* name/namelen has prefix cut off by caller */
272 const char *match
= item
->match
+ prefix
;
273 int matchlen
= item
->len
- prefix
;
276 * The normal call pattern is:
277 * 1. prefix = common_prefix_len(ps);
278 * 2. prune something, or fill_directory
279 * 3. match_pathspec()
281 * 'prefix' at #1 may be shorter than the command's prefix and
282 * it's ok for #2 to match extra files. Those extras will be
285 * Suppose the pathspec is 'foo' and '../bar' running from
286 * subdir 'xyz'. The common prefix at #1 will be empty, thanks
287 * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The
288 * user does not want XYZ/foo, only the "foo" part should be
289 * case-insensitive. We need to filter out XYZ/foo here. In
290 * other words, we do not trust the caller on comparing the
291 * prefix part when :(icase) is involved. We do exact
292 * comparison ourselves.
294 * Normally the caller (common_prefix_len() in fact) does
295 * _exact_ matching on name[-prefix+1..-1] and we do not need
296 * to check that part. Be defensive and check it anyway, in
297 * case common_prefix_len is changed, or a new caller is
298 * introduced that does not use common_prefix_len.
300 * If the penalty turns out too high when prefix is really
301 * long, maybe change it to
302 * strncmp(match, name, item->prefix - prefix)
304 if (item
->prefix
&& (item
->magic
& PATHSPEC_ICASE
) &&
305 strncmp(item
->match
, name
- prefix
, item
->prefix
))
308 if (item
->attr_match_nr
&& !match_attrs(name
, namelen
, item
))
311 /* If the match was just the prefix, we matched */
313 return MATCHED_RECURSIVELY
;
315 if (matchlen
<= namelen
&& !ps_strncmp(item
, match
, name
, matchlen
)) {
316 if (matchlen
== namelen
)
317 return MATCHED_EXACTLY
;
319 if (match
[matchlen
-1] == '/' || name
[matchlen
] == '/')
320 return MATCHED_RECURSIVELY
;
321 } else if ((flags
& DO_MATCH_DIRECTORY
) &&
322 match
[matchlen
- 1] == '/' &&
323 namelen
== matchlen
- 1 &&
324 !ps_strncmp(item
, match
, name
, namelen
))
325 return MATCHED_EXACTLY
;
327 if (item
->nowildcard_len
< item
->len
&&
328 !git_fnmatch(item
, match
, name
,
329 item
->nowildcard_len
- prefix
))
330 return MATCHED_FNMATCH
;
332 /* Perform checks to see if "name" is a super set of the pathspec */
333 if (flags
& DO_MATCH_SUBMODULE
) {
334 /* name is a literal prefix of the pathspec */
335 if ((namelen
< matchlen
) &&
336 (match
[namelen
] == '/') &&
337 !ps_strncmp(item
, match
, name
, namelen
))
338 return MATCHED_RECURSIVELY
;
340 /* name" doesn't match up to the first wild character */
341 if (item
->nowildcard_len
< item
->len
&&
342 ps_strncmp(item
, match
, name
,
343 item
->nowildcard_len
- prefix
))
347 * Here is where we would perform a wildmatch to check if
348 * "name" can be matched as a directory (or a prefix) against
349 * the pathspec. Since wildmatch doesn't have this capability
350 * at the present we have to punt and say that it is a match,
351 * potentially returning a false positive
352 * The submodules themselves will be able to perform more
353 * accurate matching to determine if the pathspec matches.
355 return MATCHED_RECURSIVELY
;
362 * Given a name and a list of pathspecs, returns the nature of the
363 * closest (i.e. most specific) match of the name to any of the
366 * The caller typically calls this multiple times with the same
367 * pathspec and seen[] array but with different name/namelen
368 * (e.g. entries from the index) and is interested in seeing if and
369 * how each pathspec matches all the names it calls this function
370 * with. A mark is left in the seen[] array for each pathspec element
371 * indicating the closest type of match that element achieved, so if
372 * seen[n] remains zero after multiple invocations, that means the nth
373 * pathspec did not match any names, which could indicate that the
374 * user mistyped the nth pathspec.
376 static int do_match_pathspec(const struct pathspec
*ps
,
377 const char *name
, int namelen
,
378 int prefix
, char *seen
,
381 int i
, retval
= 0, exclude
= flags
& DO_MATCH_EXCLUDE
;
393 if (!ps
->recursive
||
394 !(ps
->magic
& PATHSPEC_MAXDEPTH
) ||
396 return MATCHED_RECURSIVELY
;
398 if (within_depth(name
, namelen
, 0, ps
->max_depth
))
399 return MATCHED_EXACTLY
;
407 for (i
= ps
->nr
- 1; i
>= 0; i
--) {
410 if ((!exclude
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
) ||
411 ( exclude
&& !(ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)))
414 if (seen
&& seen
[i
] == MATCHED_EXACTLY
)
417 * Make exclude patterns optional and never report
418 * "pathspec ':(exclude)foo' matches no files"
420 if (seen
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)
421 seen
[i
] = MATCHED_FNMATCH
;
422 how
= match_pathspec_item(ps
->items
+i
, prefix
, name
,
425 (ps
->magic
& PATHSPEC_MAXDEPTH
) &&
426 ps
->max_depth
!= -1 &&
427 how
&& how
!= MATCHED_FNMATCH
) {
428 int len
= ps
->items
[i
].len
;
429 if (name
[len
] == '/')
431 if (within_depth(name
+len
, namelen
-len
, 0, ps
->max_depth
))
432 how
= MATCHED_EXACTLY
;
439 if (seen
&& seen
[i
] < how
)
446 int match_pathspec(const struct pathspec
*ps
,
447 const char *name
, int namelen
,
448 int prefix
, char *seen
, int is_dir
)
450 int positive
, negative
;
451 unsigned flags
= is_dir
? DO_MATCH_DIRECTORY
: 0;
452 positive
= do_match_pathspec(ps
, name
, namelen
,
453 prefix
, seen
, flags
);
454 if (!(ps
->magic
& PATHSPEC_EXCLUDE
) || !positive
)
456 negative
= do_match_pathspec(ps
, name
, namelen
,
458 flags
| DO_MATCH_EXCLUDE
);
459 return negative
? 0 : positive
;
463 * Check if a submodule is a superset of the pathspec
465 int submodule_path_match(const struct pathspec
*ps
,
466 const char *submodule_name
,
469 int matched
= do_match_pathspec(ps
, submodule_name
,
470 strlen(submodule_name
),
477 int report_path_error(const char *ps_matched
,
478 const struct pathspec
*pathspec
,
482 * Make sure all pathspec matched; otherwise it is an error.
485 for (num
= 0; num
< pathspec
->nr
; num
++) {
486 int other
, found_dup
;
491 * The caller might have fed identical pathspec
492 * twice. Do not barf on such a mistake.
493 * FIXME: parse_pathspec should have eliminated
494 * duplicate pathspec.
496 for (found_dup
= other
= 0;
497 !found_dup
&& other
< pathspec
->nr
;
499 if (other
== num
|| !ps_matched
[other
])
501 if (!strcmp(pathspec
->items
[other
].original
,
502 pathspec
->items
[num
].original
))
504 * Ok, we have a match already.
511 error("pathspec '%s' did not match any file(s) known to git.",
512 pathspec
->items
[num
].original
);
519 * Return the length of the "simple" part of a path match limiter.
521 int simple_length(const char *match
)
526 unsigned char c
= *match
++;
528 if (c
== '\0' || is_glob_special(c
))
533 int no_wildcard(const char *string
)
535 return string
[simple_length(string
)] == '\0';
538 void parse_exclude_pattern(const char **pattern
,
543 const char *p
= *pattern
;
548 *flags
|= EXC_FLAG_NEGATIVE
;
552 if (len
&& p
[len
- 1] == '/') {
554 *flags
|= EXC_FLAG_MUSTBEDIR
;
556 for (i
= 0; i
< len
; i
++) {
561 *flags
|= EXC_FLAG_NODIR
;
562 *nowildcardlen
= simple_length(p
);
564 * we should have excluded the trailing slash from 'p' too,
565 * but that's one more allocation. Instead just make sure
566 * nowildcardlen does not exceed real patternlen
568 if (*nowildcardlen
> len
)
569 *nowildcardlen
= len
;
570 if (*p
== '*' && no_wildcard(p
+ 1))
571 *flags
|= EXC_FLAG_ENDSWITH
;
576 void add_exclude(const char *string
, const char *base
,
577 int baselen
, struct exclude_list
*el
, int srcpos
)
584 parse_exclude_pattern(&string
, &patternlen
, &flags
, &nowildcardlen
);
585 if (flags
& EXC_FLAG_MUSTBEDIR
) {
586 FLEXPTR_ALLOC_MEM(x
, pattern
, string
, patternlen
);
588 x
= xmalloc(sizeof(*x
));
591 x
->patternlen
= patternlen
;
592 x
->nowildcardlen
= nowildcardlen
;
594 x
->baselen
= baselen
;
597 ALLOC_GROW(el
->excludes
, el
->nr
+ 1, el
->alloc
);
598 el
->excludes
[el
->nr
++] = x
;
602 static void *read_skip_worktree_file_from_index(const struct index_state
*istate
,
603 const char *path
, size_t *size
,
604 struct sha1_stat
*sha1_stat
)
608 enum object_type type
;
612 pos
= index_name_pos(istate
, path
, len
);
615 if (!ce_skip_worktree(istate
->cache
[pos
]))
617 data
= read_sha1_file(istate
->cache
[pos
]->oid
.hash
, &type
, &sz
);
618 if (!data
|| type
!= OBJ_BLOB
) {
624 memset(&sha1_stat
->stat
, 0, sizeof(sha1_stat
->stat
));
625 hashcpy(sha1_stat
->sha1
, istate
->cache
[pos
]->oid
.hash
);
631 * Frees memory within el which was allocated for exclude patterns and
632 * the file buffer. Does not free el itself.
634 void clear_exclude_list(struct exclude_list
*el
)
638 for (i
= 0; i
< el
->nr
; i
++)
639 free(el
->excludes
[i
]);
643 memset(el
, 0, sizeof(*el
));
646 static void trim_trailing_spaces(char *buf
)
648 char *p
, *last_space
= NULL
;
650 for (p
= buf
; *p
; p
++)
670 * Given a subdirectory name and "dir" of the current directory,
671 * search the subdir in "dir" and return it, or create a new one if it
672 * does not exist in "dir".
674 * If "name" has the trailing slash, it'll be excluded in the search.
676 static struct untracked_cache_dir
*lookup_untracked(struct untracked_cache
*uc
,
677 struct untracked_cache_dir
*dir
,
678 const char *name
, int len
)
681 struct untracked_cache_dir
*d
;
684 if (len
&& name
[len
- 1] == '/')
688 while (last
> first
) {
689 int cmp
, next
= (last
+ first
) >> 1;
691 cmp
= strncmp(name
, d
->name
, len
);
692 if (!cmp
&& strlen(d
->name
) > len
)
704 FLEX_ALLOC_MEM(d
, name
, name
, len
);
706 ALLOC_GROW(dir
->dirs
, dir
->dirs_nr
+ 1, dir
->dirs_alloc
);
707 memmove(dir
->dirs
+ first
+ 1, dir
->dirs
+ first
,
708 (dir
->dirs_nr
- first
) * sizeof(*dir
->dirs
));
710 dir
->dirs
[first
] = d
;
714 static void do_invalidate_gitignore(struct untracked_cache_dir
*dir
)
718 dir
->untracked_nr
= 0;
719 for (i
= 0; i
< dir
->dirs_nr
; i
++)
720 do_invalidate_gitignore(dir
->dirs
[i
]);
723 static void invalidate_gitignore(struct untracked_cache
*uc
,
724 struct untracked_cache_dir
*dir
)
726 uc
->gitignore_invalidated
++;
727 do_invalidate_gitignore(dir
);
730 static void invalidate_directory(struct untracked_cache
*uc
,
731 struct untracked_cache_dir
*dir
)
734 uc
->dir_invalidated
++;
736 dir
->untracked_nr
= 0;
737 for (i
= 0; i
< dir
->dirs_nr
; i
++)
738 dir
->dirs
[i
]->recurse
= 0;
742 * Given a file with name "fname", read it (either from disk, or from
743 * an index if 'istate' is non-null), parse it and store the
744 * exclude rules in "el".
746 * If "ss" is not NULL, compute SHA-1 of the exclude file and fill
747 * stat data from disk (only valid if add_excludes returns zero). If
748 * ss_valid is non-zero, "ss" must contain good value as input.
750 static int add_excludes(const char *fname
, const char *base
, int baselen
,
751 struct exclude_list
*el
,
752 struct index_state
*istate
,
753 struct sha1_stat
*sha1_stat
)
756 int fd
, i
, lineno
= 1;
760 fd
= open(fname
, O_RDONLY
);
761 if (fd
< 0 || fstat(fd
, &st
) < 0) {
763 warn_on_fopen_errors(fname
);
767 (buf
= read_skip_worktree_file_from_index(istate
, fname
, &size
, sha1_stat
)) == NULL
)
773 if (buf
[size
-1] != '\n') {
774 buf
= xrealloc(buf
, st_add(size
, 1));
778 size
= xsize_t(st
.st_size
);
781 fill_stat_data(&sha1_stat
->stat
, &st
);
782 hashcpy(sha1_stat
->sha1
, EMPTY_BLOB_SHA1_BIN
);
783 sha1_stat
->valid
= 1;
788 buf
= xmallocz(size
);
789 if (read_in_full(fd
, buf
, size
) != size
) {
798 if (sha1_stat
->valid
&&
799 !match_stat_data_racy(istate
, &sha1_stat
->stat
, &st
))
800 ; /* no content change, ss->sha1 still good */
802 (pos
= index_name_pos(istate
, fname
, strlen(fname
))) >= 0 &&
803 !ce_stage(istate
->cache
[pos
]) &&
804 ce_uptodate(istate
->cache
[pos
]) &&
805 !would_convert_to_git(fname
))
806 hashcpy(sha1_stat
->sha1
,
807 istate
->cache
[pos
]->oid
.hash
);
809 hash_sha1_file(buf
, size
, "blob", sha1_stat
->sha1
);
810 fill_stat_data(&sha1_stat
->stat
, &st
);
811 sha1_stat
->valid
= 1;
817 if (skip_utf8_bom(&buf
, size
))
818 size
-= buf
- el
->filebuf
;
822 for (i
= 0; i
< size
; i
++) {
823 if (buf
[i
] == '\n') {
824 if (entry
!= buf
+ i
&& entry
[0] != '#') {
825 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
826 trim_trailing_spaces(entry
);
827 add_exclude(entry
, base
, baselen
, el
, lineno
);
836 int add_excludes_from_file_to_list(const char *fname
, const char *base
,
837 int baselen
, struct exclude_list
*el
,
838 struct index_state
*istate
)
840 return add_excludes(fname
, base
, baselen
, el
, istate
, NULL
);
843 struct exclude_list
*add_exclude_list(struct dir_struct
*dir
,
844 int group_type
, const char *src
)
846 struct exclude_list
*el
;
847 struct exclude_list_group
*group
;
849 group
= &dir
->exclude_list_group
[group_type
];
850 ALLOC_GROW(group
->el
, group
->nr
+ 1, group
->alloc
);
851 el
= &group
->el
[group
->nr
++];
852 memset(el
, 0, sizeof(*el
));
858 * Used to set up core.excludesfile and .git/info/exclude lists.
860 static void add_excludes_from_file_1(struct dir_struct
*dir
, const char *fname
,
861 struct sha1_stat
*sha1_stat
)
863 struct exclude_list
*el
;
865 * catch setup_standard_excludes() that's called before
866 * dir->untracked is assigned. That function behaves
867 * differently when dir->untracked is non-NULL.
870 dir
->unmanaged_exclude_files
++;
871 el
= add_exclude_list(dir
, EXC_FILE
, fname
);
872 if (add_excludes(fname
, "", 0, el
, NULL
, sha1_stat
) < 0)
873 die("cannot use %s as an exclude file", fname
);
876 void add_excludes_from_file(struct dir_struct
*dir
, const char *fname
)
878 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
879 add_excludes_from_file_1(dir
, fname
, NULL
);
882 int match_basename(const char *basename
, int basenamelen
,
883 const char *pattern
, int prefix
, int patternlen
,
886 if (prefix
== patternlen
) {
887 if (patternlen
== basenamelen
&&
888 !fspathncmp(pattern
, basename
, basenamelen
))
890 } else if (flags
& EXC_FLAG_ENDSWITH
) {
891 /* "*literal" matching against "fooliteral" */
892 if (patternlen
- 1 <= basenamelen
&&
893 !fspathncmp(pattern
+ 1,
894 basename
+ basenamelen
- (patternlen
- 1),
898 if (fnmatch_icase_mem(pattern
, patternlen
,
899 basename
, basenamelen
,
906 int match_pathname(const char *pathname
, int pathlen
,
907 const char *base
, int baselen
,
908 const char *pattern
, int prefix
, int patternlen
,
915 * match with FNM_PATHNAME; the pattern has base implicitly
918 if (*pattern
== '/') {
925 * baselen does not count the trailing slash. base[] may or
926 * may not end with a trailing slash though.
928 if (pathlen
< baselen
+ 1 ||
929 (baselen
&& pathname
[baselen
] != '/') ||
930 fspathncmp(pathname
, base
, baselen
))
933 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
934 name
= pathname
+ pathlen
- namelen
;
938 * if the non-wildcard part is longer than the
939 * remaining pathname, surely it cannot match.
941 if (prefix
> namelen
)
944 if (fspathncmp(pattern
, name
, prefix
))
947 patternlen
-= prefix
;
952 * If the whole pattern did not have a wildcard,
953 * then our prefix match is all we need; we
954 * do not need to call fnmatch at all.
956 if (!patternlen
&& !namelen
)
960 return fnmatch_icase_mem(pattern
, patternlen
,
966 * Scan the given exclude list in reverse to see whether pathname
967 * should be ignored. The first match (i.e. the last on the list), if
968 * any, determines the fate. Returns the exclude_list element which
969 * matched, or NULL for undecided.
971 static struct exclude
*last_exclude_matching_from_list(const char *pathname
,
973 const char *basename
,
975 struct exclude_list
*el
,
976 struct index_state
*istate
)
978 struct exclude
*exc
= NULL
; /* undecided */
982 return NULL
; /* undefined */
984 for (i
= el
->nr
- 1; 0 <= i
; i
--) {
985 struct exclude
*x
= el
->excludes
[i
];
986 const char *exclude
= x
->pattern
;
987 int prefix
= x
->nowildcardlen
;
989 if (x
->flags
& EXC_FLAG_MUSTBEDIR
) {
990 if (*dtype
== DT_UNKNOWN
)
991 *dtype
= get_dtype(NULL
, istate
, pathname
, pathlen
);
992 if (*dtype
!= DT_DIR
)
996 if (x
->flags
& EXC_FLAG_NODIR
) {
997 if (match_basename(basename
,
998 pathlen
- (basename
- pathname
),
999 exclude
, prefix
, x
->patternlen
,
1007 assert(x
->baselen
== 0 || x
->base
[x
->baselen
- 1] == '/');
1008 if (match_pathname(pathname
, pathlen
,
1009 x
->base
, x
->baselen
? x
->baselen
- 1 : 0,
1010 exclude
, prefix
, x
->patternlen
, x
->flags
)) {
1019 * Scan the list and let the last match determine the fate.
1020 * Return 1 for exclude, 0 for include and -1 for undecided.
1022 int is_excluded_from_list(const char *pathname
,
1023 int pathlen
, const char *basename
, int *dtype
,
1024 struct exclude_list
*el
, struct index_state
*istate
)
1026 struct exclude
*exclude
;
1027 exclude
= last_exclude_matching_from_list(pathname
, pathlen
, basename
,
1030 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1031 return -1; /* undecided */
1034 static struct exclude
*last_exclude_matching_from_lists(struct dir_struct
*dir
,
1035 struct index_state
*istate
,
1036 const char *pathname
, int pathlen
, const char *basename
,
1040 struct exclude_list_group
*group
;
1041 struct exclude
*exclude
;
1042 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
1043 group
= &dir
->exclude_list_group
[i
];
1044 for (j
= group
->nr
- 1; j
>= 0; j
--) {
1045 exclude
= last_exclude_matching_from_list(
1046 pathname
, pathlen
, basename
, dtype_p
,
1047 &group
->el
[j
], istate
);
1056 * Loads the per-directory exclude list for the substring of base
1057 * which has a char length of baselen.
1059 static void prep_exclude(struct dir_struct
*dir
,
1060 struct index_state
*istate
,
1061 const char *base
, int baselen
)
1063 struct exclude_list_group
*group
;
1064 struct exclude_list
*el
;
1065 struct exclude_stack
*stk
= NULL
;
1066 struct untracked_cache_dir
*untracked
;
1069 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1072 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1073 * which originate from directories not in the prefix of the
1074 * path being checked.
1076 while ((stk
= dir
->exclude_stack
) != NULL
) {
1077 if (stk
->baselen
<= baselen
&&
1078 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1080 el
= &group
->el
[dir
->exclude_stack
->exclude_ix
];
1081 dir
->exclude_stack
= stk
->prev
;
1082 dir
->exclude
= NULL
;
1083 free((char *)el
->src
); /* see strbuf_detach() below */
1084 clear_exclude_list(el
);
1089 /* Skip traversing into sub directories if the parent is excluded */
1094 * Lazy initialization. All call sites currently just
1095 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1096 * them seems lots of work for little benefit.
1098 if (!dir
->basebuf
.buf
)
1099 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1101 /* Read from the parent directories and push them down. */
1102 current
= stk
? stk
->baselen
: -1;
1103 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1105 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1109 while (current
< baselen
) {
1111 struct sha1_stat sha1_stat
;
1113 stk
= xcalloc(1, sizeof(*stk
));
1118 cp
= strchr(base
+ current
+ 1, '/');
1120 die("oops in prep_exclude");
1123 lookup_untracked(dir
->untracked
, untracked
,
1125 cp
- base
- current
);
1127 stk
->prev
= dir
->exclude_stack
;
1128 stk
->baselen
= cp
- base
;
1129 stk
->exclude_ix
= group
->nr
;
1130 stk
->ucd
= untracked
;
1131 el
= add_exclude_list(dir
, EXC_DIRS
, NULL
);
1132 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1133 assert(stk
->baselen
== dir
->basebuf
.len
);
1135 /* Abort if the directory is excluded */
1138 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1139 dir
->exclude
= last_exclude_matching_from_lists(dir
,
1141 dir
->basebuf
.buf
, stk
->baselen
- 1,
1142 dir
->basebuf
.buf
+ current
, &dt
);
1143 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1145 dir
->exclude
->flags
& EXC_FLAG_NEGATIVE
)
1146 dir
->exclude
= NULL
;
1148 dir
->exclude_stack
= stk
;
1153 /* Try to read per-directory file */
1154 hashclr(sha1_stat
.sha1
);
1155 sha1_stat
.valid
= 0;
1156 if (dir
->exclude_per_dir
&&
1158 * If we know that no files have been added in
1159 * this directory (i.e. valid_cached_dir() has
1160 * been executed and set untracked->valid) ..
1162 (!untracked
|| !untracked
->valid
||
1164 * .. and .gitignore does not exist before
1165 * (i.e. null exclude_sha1). Then we can skip
1166 * loading .gitignore, which would result in
1169 !is_null_sha1(untracked
->exclude_sha1
))) {
1171 * dir->basebuf gets reused by the traversal, but we
1172 * need fname to remain unchanged to ensure the src
1173 * member of each struct exclude correctly
1174 * back-references its source file. Other invocations
1175 * of add_exclude_list provide stable strings, so we
1176 * strbuf_detach() and free() here in the caller.
1178 struct strbuf sb
= STRBUF_INIT
;
1179 strbuf_addbuf(&sb
, &dir
->basebuf
);
1180 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1181 el
->src
= strbuf_detach(&sb
, NULL
);
1182 add_excludes(el
->src
, el
->src
, stk
->baselen
, el
, istate
,
1183 untracked
? &sha1_stat
: NULL
);
1186 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1187 * will first be called in valid_cached_dir() then maybe many
1188 * times more in last_exclude_matching(). When the cache is
1189 * used, last_exclude_matching() will not be called and
1190 * reading .gitignore content will be a waste.
1192 * So when it's called by valid_cached_dir() and we can get
1193 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1194 * modified on work tree), we could delay reading the
1195 * .gitignore content until we absolutely need it in
1196 * last_exclude_matching(). Be careful about ignore rule
1197 * order, though, if you do that.
1200 hashcmp(sha1_stat
.sha1
, untracked
->exclude_sha1
)) {
1201 invalidate_gitignore(dir
->untracked
, untracked
);
1202 hashcpy(untracked
->exclude_sha1
, sha1_stat
.sha1
);
1204 dir
->exclude_stack
= stk
;
1205 current
= stk
->baselen
;
1207 strbuf_setlen(&dir
->basebuf
, baselen
);
1211 * Loads the exclude lists for the directory containing pathname, then
1212 * scans all exclude lists to determine whether pathname is excluded.
1213 * Returns the exclude_list element which matched, or NULL for
1216 struct exclude
*last_exclude_matching(struct dir_struct
*dir
,
1217 struct index_state
*istate
,
1218 const char *pathname
,
1221 int pathlen
= strlen(pathname
);
1222 const char *basename
= strrchr(pathname
, '/');
1223 basename
= (basename
) ? basename
+1 : pathname
;
1225 prep_exclude(dir
, istate
, pathname
, basename
-pathname
);
1228 return dir
->exclude
;
1230 return last_exclude_matching_from_lists(dir
, istate
, pathname
, pathlen
,
1235 * Loads the exclude lists for the directory containing pathname, then
1236 * scans all exclude lists to determine whether pathname is excluded.
1237 * Returns 1 if true, otherwise 0.
1239 int is_excluded(struct dir_struct
*dir
, struct index_state
*istate
,
1240 const char *pathname
, int *dtype_p
)
1242 struct exclude
*exclude
=
1243 last_exclude_matching(dir
, istate
, pathname
, dtype_p
);
1245 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1249 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1251 struct dir_entry
*ent
;
1253 FLEX_ALLOC_MEM(ent
, name
, pathname
, len
);
1258 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
,
1259 struct index_state
*istate
,
1260 const char *pathname
, int len
)
1262 if (index_file_exists(istate
, pathname
, len
, ignore_case
))
1265 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1266 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1269 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
,
1270 struct index_state
*istate
,
1271 const char *pathname
, int len
)
1273 if (!index_name_is_other(istate
, pathname
, len
))
1276 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1277 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1281 index_nonexistent
= 0,
1287 * Do not use the alphabetically sorted index to look up
1288 * the directory name; instead, use the case insensitive
1291 static enum exist_status
directory_exists_in_index_icase(struct index_state
*istate
,
1292 const char *dirname
, int len
)
1294 struct cache_entry
*ce
;
1296 if (index_dir_exists(istate
, dirname
, len
))
1297 return index_directory
;
1299 ce
= index_file_exists(istate
, dirname
, len
, ignore_case
);
1300 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1301 return index_gitdir
;
1303 return index_nonexistent
;
1307 * The index sorts alphabetically by entry name, which
1308 * means that a gitlink sorts as '\0' at the end, while
1309 * a directory (which is defined not as an entry, but as
1310 * the files it contains) will sort with the '/' at the
1313 static enum exist_status
directory_exists_in_index(struct index_state
*istate
,
1314 const char *dirname
, int len
)
1319 return directory_exists_in_index_icase(istate
, dirname
, len
);
1321 pos
= index_name_pos(istate
, dirname
, len
);
1324 while (pos
< istate
->cache_nr
) {
1325 const struct cache_entry
*ce
= istate
->cache
[pos
++];
1326 unsigned char endchar
;
1328 if (strncmp(ce
->name
, dirname
, len
))
1330 endchar
= ce
->name
[len
];
1334 return index_directory
;
1335 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1336 return index_gitdir
;
1338 return index_nonexistent
;
1342 * When we find a directory when traversing the filesystem, we
1343 * have three distinct cases:
1346 * - see it as a directory
1349 * and which one we choose depends on a combination of existing
1350 * git index contents and the flags passed into the directory
1351 * traversal routine.
1353 * Case 1: If we *already* have entries in the index under that
1354 * directory name, we always recurse into the directory to see
1357 * Case 2: If we *already* have that directory name as a gitlink,
1358 * we always continue to see it as a gitlink, regardless of whether
1359 * there is an actual git directory there or not (it might not
1360 * be checked out as a subproject!)
1362 * Case 3: if we didn't have it in the index previously, we
1363 * have a few sub-cases:
1365 * (a) if "show_other_directories" is true, we show it as
1366 * just a directory, unless "hide_empty_directories" is
1367 * also true, in which case we need to check if it contains any
1368 * untracked and / or ignored files.
1369 * (b) if it looks like a git directory, and we don't have
1370 * 'no_gitlinks' set we treat it as a gitlink, and show it
1372 * (c) otherwise, we recurse into it.
1374 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1375 struct index_state
*istate
,
1376 struct untracked_cache_dir
*untracked
,
1377 const char *dirname
, int len
, int baselen
, int exclude
,
1378 const struct pathspec
*pathspec
)
1380 /* The "len-1" is to strip the final '/' */
1381 switch (directory_exists_in_index(istate
, dirname
, len
-1)) {
1382 case index_directory
:
1383 return path_recurse
;
1388 case index_nonexistent
:
1389 if (dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)
1391 if (!(dir
->flags
& DIR_NO_GITLINKS
)) {
1392 unsigned char sha1
[20];
1393 if (resolve_gitlink_ref(dirname
, "HEAD", sha1
) == 0)
1394 return path_untracked
;
1396 return path_recurse
;
1399 /* This is the "show_other_directories" case */
1401 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1402 return exclude
? path_excluded
: path_untracked
;
1404 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1405 dirname
+ baselen
, len
- baselen
);
1406 return read_directory_recursive(dir
, istate
, dirname
, len
,
1407 untracked
, 1, pathspec
);
1411 * This is an inexact early pruning of any recursive directory
1412 * reading - if the path cannot possibly be in the pathspec,
1413 * return true, and we'll skip it early.
1415 static int simplify_away(const char *path
, int pathlen
,
1416 const struct pathspec
*pathspec
)
1420 if (!pathspec
|| !pathspec
->nr
)
1423 GUARD_PATHSPEC(pathspec
,
1432 for (i
= 0; i
< pathspec
->nr
; i
++) {
1433 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1434 int len
= item
->nowildcard_len
;
1438 if (!ps_strncmp(item
, item
->match
, path
, len
))
1446 * This function tells us whether an excluded path matches a
1447 * list of "interesting" pathspecs. That is, whether a path matched
1448 * by any of the pathspecs could possibly be ignored by excluding
1449 * the specified path. This can happen if:
1451 * 1. the path is mentioned explicitly in the pathspec
1453 * 2. the path is a directory prefix of some element in the
1456 static int exclude_matches_pathspec(const char *path
, int pathlen
,
1457 const struct pathspec
*pathspec
)
1461 if (!pathspec
|| !pathspec
->nr
)
1464 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
;
1476 if (len
== pathlen
&&
1477 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1479 if (len
> pathlen
&&
1480 item
->match
[pathlen
] == '/' &&
1481 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1487 static int get_index_dtype(struct index_state
*istate
,
1488 const char *path
, int len
)
1491 const struct cache_entry
*ce
;
1493 ce
= index_file_exists(istate
, path
, len
, 0);
1495 if (!ce_uptodate(ce
))
1497 if (S_ISGITLINK(ce
->ce_mode
))
1500 * Nobody actually cares about the
1501 * difference between DT_LNK and DT_REG
1506 /* Try to look it up as a directory */
1507 pos
= index_name_pos(istate
, path
, len
);
1511 while (pos
< istate
->cache_nr
) {
1512 ce
= istate
->cache
[pos
++];
1513 if (strncmp(ce
->name
, path
, len
))
1515 if (ce
->name
[len
] > '/')
1517 if (ce
->name
[len
] < '/')
1519 if (!ce_uptodate(ce
))
1520 break; /* continue? */
1526 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
1527 const char *path
, int len
)
1529 int dtype
= de
? DTYPE(de
) : DT_UNKNOWN
;
1532 if (dtype
!= DT_UNKNOWN
)
1534 dtype
= get_index_dtype(istate
, path
, len
);
1535 if (dtype
!= DT_UNKNOWN
)
1537 if (lstat(path
, &st
))
1539 if (S_ISREG(st
.st_mode
))
1541 if (S_ISDIR(st
.st_mode
))
1543 if (S_ISLNK(st
.st_mode
))
1548 static enum path_treatment
treat_one_path(struct dir_struct
*dir
,
1549 struct untracked_cache_dir
*untracked
,
1550 struct index_state
*istate
,
1551 struct strbuf
*path
,
1553 const struct pathspec
*pathspec
,
1554 int dtype
, struct dirent
*de
)
1557 int has_path_in_index
= !!index_file_exists(istate
, path
->buf
, path
->len
, ignore_case
);
1559 if (dtype
== DT_UNKNOWN
)
1560 dtype
= get_dtype(de
, istate
, path
->buf
, path
->len
);
1562 /* Always exclude indexed files */
1563 if (dtype
!= DT_DIR
&& has_path_in_index
)
1567 * When we are looking at a directory P in the working tree,
1568 * there are three cases:
1570 * (1) P exists in the index. Everything inside the directory P in
1571 * the working tree needs to go when P is checked out from the
1574 * (2) P does not exist in the index, but there is P/Q in the index.
1575 * We know P will stay a directory when we check out the contents
1576 * of the index, but we do not know yet if there is a directory
1577 * P/Q in the working tree to be killed, so we need to recurse.
1579 * (3) P does not exist in the index, and there is no P/Q in the index
1580 * to require P to be a directory, either. Only in this case, we
1581 * know that everything inside P will not be killed without
1584 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
1585 (dtype
== DT_DIR
) &&
1586 !has_path_in_index
&&
1587 (directory_exists_in_index(istate
, path
->buf
, path
->len
) == index_nonexistent
))
1590 exclude
= is_excluded(dir
, istate
, path
->buf
, &dtype
);
1593 * Excluded? If we don't explicitly want to show
1594 * ignored files, ignore it
1596 if (exclude
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
1597 return path_excluded
;
1603 strbuf_addch(path
, '/');
1604 return treat_directory(dir
, istate
, untracked
, path
->buf
, path
->len
,
1605 baselen
, exclude
, pathspec
);
1608 return exclude
? path_excluded
: path_untracked
;
1612 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
1613 struct untracked_cache_dir
*untracked
,
1614 struct cached_dir
*cdir
,
1615 struct index_state
*istate
,
1616 struct strbuf
*path
,
1618 const struct pathspec
*pathspec
)
1620 strbuf_setlen(path
, baselen
);
1622 strbuf_addstr(path
, cdir
->file
);
1623 return path_untracked
;
1625 strbuf_addstr(path
, cdir
->ucd
->name
);
1626 /* treat_one_path() does this before it calls treat_directory() */
1627 strbuf_complete(path
, '/');
1628 if (cdir
->ucd
->check_only
)
1630 * check_only is set as a result of treat_directory() getting
1631 * to its bottom. Verify again the same set of directories
1632 * with check_only set.
1634 return read_directory_recursive(dir
, istate
, path
->buf
, path
->len
,
1635 cdir
->ucd
, 1, pathspec
);
1637 * We get path_recurse in the first run when
1638 * directory_exists_in_index() returns index_nonexistent. We
1639 * are sure that new changes in the index does not impact the
1640 * outcome. Return now.
1642 return path_recurse
;
1645 static enum path_treatment
treat_path(struct dir_struct
*dir
,
1646 struct untracked_cache_dir
*untracked
,
1647 struct cached_dir
*cdir
,
1648 struct index_state
*istate
,
1649 struct strbuf
*path
,
1651 const struct pathspec
*pathspec
)
1654 struct dirent
*de
= cdir
->de
;
1657 return treat_path_fast(dir
, untracked
, cdir
, istate
, path
,
1659 if (is_dot_or_dotdot(de
->d_name
) || !strcmp(de
->d_name
, ".git"))
1661 strbuf_setlen(path
, baselen
);
1662 strbuf_addstr(path
, de
->d_name
);
1663 if (simplify_away(path
->buf
, path
->len
, pathspec
))
1667 return treat_one_path(dir
, untracked
, istate
, path
, baselen
, pathspec
, dtype
, de
);
1670 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
1674 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
1675 dir
->untracked_alloc
);
1676 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
1679 static int valid_cached_dir(struct dir_struct
*dir
,
1680 struct untracked_cache_dir
*untracked
,
1681 struct index_state
*istate
,
1682 struct strbuf
*path
,
1690 if (stat(path
->len
? path
->buf
: ".", &st
)) {
1691 invalidate_directory(dir
->untracked
, untracked
);
1692 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
1695 if (!untracked
->valid
||
1696 match_stat_data_racy(istate
, &untracked
->stat_data
, &st
)) {
1697 if (untracked
->valid
)
1698 invalidate_directory(dir
->untracked
, untracked
);
1699 fill_stat_data(&untracked
->stat_data
, &st
);
1703 if (untracked
->check_only
!= !!check_only
) {
1704 invalidate_directory(dir
->untracked
, untracked
);
1709 * prep_exclude will be called eventually on this directory,
1710 * but it's called much later in last_exclude_matching(). We
1711 * need it now to determine the validity of the cache for this
1712 * path. The next calls will be nearly no-op, the way
1713 * prep_exclude() is designed.
1715 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
1716 strbuf_addch(path
, '/');
1717 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
1718 strbuf_setlen(path
, path
->len
- 1);
1720 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
1722 /* hopefully prep_exclude() haven't invalidated this entry... */
1723 return untracked
->valid
;
1726 static int open_cached_dir(struct cached_dir
*cdir
,
1727 struct dir_struct
*dir
,
1728 struct untracked_cache_dir
*untracked
,
1729 struct index_state
*istate
,
1730 struct strbuf
*path
,
1733 memset(cdir
, 0, sizeof(*cdir
));
1734 cdir
->untracked
= untracked
;
1735 if (valid_cached_dir(dir
, untracked
, istate
, path
, check_only
))
1737 cdir
->fdir
= opendir(path
->len
? path
->buf
: ".");
1739 dir
->untracked
->dir_opened
++;
1745 static int read_cached_dir(struct cached_dir
*cdir
)
1748 cdir
->de
= readdir(cdir
->fdir
);
1753 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
1754 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
1764 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
1765 struct untracked_cache_dir
*d
= cdir
->untracked
;
1766 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
1772 static void close_cached_dir(struct cached_dir
*cdir
)
1775 closedir(cdir
->fdir
);
1777 * We have gone through this directory and found no untracked
1778 * entries. Mark it valid.
1780 if (cdir
->untracked
) {
1781 cdir
->untracked
->valid
= 1;
1782 cdir
->untracked
->recurse
= 1;
1787 * Read a directory tree. We currently ignore anything but
1788 * directories, regular files and symlinks. That's because git
1789 * doesn't handle them at all yet. Maybe that will change some
1792 * Also, we ignore the name ".git" (even if it is not a directory).
1793 * That likely will not change.
1795 * Returns the most significant path_treatment value encountered in the scan.
1797 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
1798 struct index_state
*istate
, const char *base
, int baselen
,
1799 struct untracked_cache_dir
*untracked
, int check_only
,
1800 const struct pathspec
*pathspec
)
1802 struct cached_dir cdir
;
1803 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
1804 struct strbuf path
= STRBUF_INIT
;
1806 strbuf_add(&path
, base
, baselen
);
1808 if (open_cached_dir(&cdir
, dir
, untracked
, istate
, &path
, check_only
))
1812 untracked
->check_only
= !!check_only
;
1814 while (!read_cached_dir(&cdir
)) {
1815 /* check how the file or directory should be treated */
1816 state
= treat_path(dir
, untracked
, &cdir
, istate
, &path
,
1819 if (state
> dir_state
)
1822 /* recurse into subdir if instructed by treat_path */
1823 if ((state
== path_recurse
) ||
1824 ((state
== path_untracked
) &&
1825 (dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1826 (get_dtype(cdir
.de
, istate
, path
.buf
, path
.len
) == DT_DIR
))) {
1827 struct untracked_cache_dir
*ud
;
1828 ud
= lookup_untracked(dir
->untracked
, untracked
,
1830 path
.len
- baselen
);
1832 read_directory_recursive(dir
, istate
, path
.buf
,
1834 check_only
, pathspec
);
1835 if (subdir_state
> dir_state
)
1836 dir_state
= subdir_state
;
1840 /* abort early if maximum state has been reached */
1841 if (dir_state
== path_untracked
) {
1843 add_untracked(untracked
, path
.buf
+ baselen
);
1846 /* skip the dir_add_* part */
1850 /* add the path to the appropriate result list */
1853 if (dir
->flags
& DIR_SHOW_IGNORED
)
1854 dir_add_name(dir
, istate
, path
.buf
, path
.len
);
1855 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
1856 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
1857 exclude_matches_pathspec(path
.buf
, path
.len
,
1859 dir_add_ignored(dir
, istate
, path
.buf
, path
.len
);
1862 case path_untracked
:
1863 if (dir
->flags
& DIR_SHOW_IGNORED
)
1865 dir_add_name(dir
, istate
, path
.buf
, path
.len
);
1867 add_untracked(untracked
, path
.buf
+ baselen
);
1874 close_cached_dir(&cdir
);
1876 strbuf_release(&path
);
1881 int cmp_dir_entry(const void *p1
, const void *p2
)
1883 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
1884 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
1886 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
1889 /* check if *out lexically strictly contains *in */
1890 int check_dir_entry_contains(const struct dir_entry
*out
, const struct dir_entry
*in
)
1892 return (out
->len
< in
->len
) &&
1893 (out
->name
[out
->len
- 1] == '/') &&
1894 !memcmp(out
->name
, in
->name
, out
->len
);
1897 static int treat_leading_path(struct dir_struct
*dir
,
1898 struct index_state
*istate
,
1899 const char *path
, int len
,
1900 const struct pathspec
*pathspec
)
1902 struct strbuf sb
= STRBUF_INIT
;
1903 int baselen
, rc
= 0;
1905 int old_flags
= dir
->flags
;
1907 while (len
&& path
[len
- 1] == '/')
1912 dir
->flags
&= ~DIR_SHOW_OTHER_DIRECTORIES
;
1914 cp
= path
+ baselen
+ !!baselen
;
1915 cp
= memchr(cp
, '/', path
+ len
- cp
);
1919 baselen
= cp
- path
;
1920 strbuf_setlen(&sb
, 0);
1921 strbuf_add(&sb
, path
, baselen
);
1922 if (!is_directory(sb
.buf
))
1924 if (simplify_away(sb
.buf
, sb
.len
, pathspec
))
1926 if (treat_one_path(dir
, NULL
, istate
, &sb
, baselen
, pathspec
,
1927 DT_DIR
, NULL
) == path_none
)
1928 break; /* do not recurse into it */
1929 if (len
<= baselen
) {
1931 break; /* finished checking */
1934 strbuf_release(&sb
);
1935 dir
->flags
= old_flags
;
1939 static const char *get_ident_string(void)
1941 static struct strbuf sb
= STRBUF_INIT
;
1946 if (uname(&uts
) < 0)
1947 die_errno(_("failed to get kernel name and information"));
1948 strbuf_addf(&sb
, "Location %s, system %s", get_git_work_tree(),
1953 static int ident_in_untracked(const struct untracked_cache
*uc
)
1956 * Previous git versions may have saved many NUL separated
1957 * strings in the "ident" field, but it is insane to manage
1958 * many locations, so just take care of the first one.
1961 return !strcmp(uc
->ident
.buf
, get_ident_string());
1964 static void set_untracked_ident(struct untracked_cache
*uc
)
1966 strbuf_reset(&uc
->ident
);
1967 strbuf_addstr(&uc
->ident
, get_ident_string());
1970 * This strbuf used to contain a list of NUL separated
1971 * strings, so save NUL too for backward compatibility.
1973 strbuf_addch(&uc
->ident
, 0);
1976 static void new_untracked_cache(struct index_state
*istate
)
1978 struct untracked_cache
*uc
= xcalloc(1, sizeof(*uc
));
1979 strbuf_init(&uc
->ident
, 100);
1980 uc
->exclude_per_dir
= ".gitignore";
1981 /* should be the same flags used by git-status */
1982 uc
->dir_flags
= DIR_SHOW_OTHER_DIRECTORIES
| DIR_HIDE_EMPTY_DIRECTORIES
;
1983 set_untracked_ident(uc
);
1984 istate
->untracked
= uc
;
1985 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1988 void add_untracked_cache(struct index_state
*istate
)
1990 if (!istate
->untracked
) {
1991 new_untracked_cache(istate
);
1993 if (!ident_in_untracked(istate
->untracked
)) {
1994 free_untracked_cache(istate
->untracked
);
1995 new_untracked_cache(istate
);
2000 void remove_untracked_cache(struct index_state
*istate
)
2002 if (istate
->untracked
) {
2003 free_untracked_cache(istate
->untracked
);
2004 istate
->untracked
= NULL
;
2005 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2009 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
2011 const struct pathspec
*pathspec
)
2013 struct untracked_cache_dir
*root
;
2015 if (!dir
->untracked
|| getenv("GIT_DISABLE_UNTRACKED_CACHE"))
2019 * We only support $GIT_DIR/info/exclude and core.excludesfile
2020 * as the global ignore rule files. Any other additions
2021 * (e.g. from command line) invalidate the cache. This
2022 * condition also catches running setup_standard_excludes()
2023 * before setting dir->untracked!
2025 if (dir
->unmanaged_exclude_files
)
2029 * Optimize for the main use case only: whole-tree git
2030 * status. More work involved in treat_leading_path() if we
2031 * use cache on just a subset of the worktree. pathspec
2032 * support could make the matter even worse.
2034 if (base_len
|| (pathspec
&& pathspec
->nr
))
2037 /* Different set of flags may produce different results */
2038 if (dir
->flags
!= dir
->untracked
->dir_flags
||
2040 * See treat_directory(), case index_nonexistent. Without
2041 * this flag, we may need to also cache .git file content
2042 * for the resolve_gitlink_ref() call, which we don't.
2044 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
2045 /* We don't support collecting ignore files */
2046 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
2047 DIR_COLLECT_IGNORED
)))
2051 * If we use .gitignore in the cache and now you change it to
2052 * .gitexclude, everything will go wrong.
2054 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
2055 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
2059 * EXC_CMDL is not considered in the cache. If people set it,
2062 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
2065 if (!ident_in_untracked(dir
->untracked
)) {
2066 warning(_("Untracked cache is disabled on this system or location."));
2070 if (!dir
->untracked
->root
) {
2071 const int len
= sizeof(*dir
->untracked
->root
);
2072 dir
->untracked
->root
= xmalloc(len
);
2073 memset(dir
->untracked
->root
, 0, len
);
2076 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2077 root
= dir
->untracked
->root
;
2078 if (hashcmp(dir
->ss_info_exclude
.sha1
,
2079 dir
->untracked
->ss_info_exclude
.sha1
)) {
2080 invalidate_gitignore(dir
->untracked
, root
);
2081 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2083 if (hashcmp(dir
->ss_excludes_file
.sha1
,
2084 dir
->untracked
->ss_excludes_file
.sha1
)) {
2085 invalidate_gitignore(dir
->untracked
, root
);
2086 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2089 /* Make sure this directory is not dropped out at saving phase */
2094 int read_directory(struct dir_struct
*dir
, struct index_state
*istate
,
2095 const char *path
, int len
, const struct pathspec
*pathspec
)
2097 struct untracked_cache_dir
*untracked
;
2099 if (has_symlink_leading_path(path
, len
))
2102 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2105 * make sure untracked cache code path is disabled,
2106 * e.g. prep_exclude()
2108 dir
->untracked
= NULL
;
2109 if (!len
|| treat_leading_path(dir
, istate
, path
, len
, pathspec
))
2110 read_directory_recursive(dir
, istate
, path
, len
, untracked
, 0, pathspec
);
2111 QSORT(dir
->entries
, dir
->nr
, cmp_dir_entry
);
2112 QSORT(dir
->ignored
, dir
->ignored_nr
, cmp_dir_entry
);
2115 * If DIR_SHOW_IGNORED_TOO is set, read_directory_recursive() will
2116 * also pick up untracked contents of untracked dirs; by default
2117 * we discard these, but given DIR_KEEP_UNTRACKED_CONTENTS we do not.
2119 if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
2120 !(dir
->flags
& DIR_KEEP_UNTRACKED_CONTENTS
)) {
2123 /* remove from dir->entries untracked contents of untracked dirs */
2124 for (i
= j
= 0; j
< dir
->nr
; j
++) {
2126 check_dir_entry_contains(dir
->entries
[i
- 1], dir
->entries
[j
])) {
2127 free(dir
->entries
[j
]);
2128 dir
->entries
[j
] = NULL
;
2130 dir
->entries
[i
++] = dir
->entries
[j
];
2137 if (dir
->untracked
) {
2138 static struct trace_key trace_untracked_stats
= TRACE_KEY_INIT(UNTRACKED_STATS
);
2139 trace_printf_key(&trace_untracked_stats
,
2140 "node creation: %u\n"
2141 "gitignore invalidation: %u\n"
2142 "directory invalidation: %u\n"
2144 dir
->untracked
->dir_created
,
2145 dir
->untracked
->gitignore_invalidated
,
2146 dir
->untracked
->dir_invalidated
,
2147 dir
->untracked
->dir_opened
);
2148 if (dir
->untracked
== istate
->untracked
&&
2149 (dir
->untracked
->dir_opened
||
2150 dir
->untracked
->gitignore_invalidated
||
2151 dir
->untracked
->dir_invalidated
))
2152 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2153 if (dir
->untracked
!= istate
->untracked
) {
2154 free(dir
->untracked
);
2155 dir
->untracked
= NULL
;
2161 int file_exists(const char *f
)
2164 return lstat(f
, &sb
) == 0;
2167 static int cmp_icase(char a
, char b
)
2172 return toupper(a
) - toupper(b
);
2177 * Given two normalized paths (a trailing slash is ok), if subdir is
2178 * outside dir, return -1. Otherwise return the offset in subdir that
2179 * can be used as relative path to dir.
2181 int dir_inside_of(const char *subdir
, const char *dir
)
2185 assert(dir
&& subdir
&& *dir
&& *subdir
);
2187 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2193 /* hel[p]/me vs hel[l]/yeah */
2194 if (*dir
&& *subdir
)
2198 return !*dir
? offset
: -1; /* same dir */
2200 /* foo/[b]ar vs foo/[] */
2201 if (is_dir_sep(dir
[-1]))
2202 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2204 /* foo[/]bar vs foo[] */
2205 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2208 int is_inside_dir(const char *dir
)
2217 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2222 int is_empty_dir(const char *path
)
2224 DIR *dir
= opendir(path
);
2231 while ((e
= readdir(dir
)) != NULL
)
2232 if (!is_dot_or_dotdot(e
->d_name
)) {
2241 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2245 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2246 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2247 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2248 unsigned char submodule_head
[20];
2250 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2251 !resolve_gitlink_ref(path
->buf
, "HEAD", submodule_head
)) {
2252 /* Do not descend and nuke a nested git work tree. */
2258 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2259 dir
= opendir(path
->buf
);
2261 if (errno
== ENOENT
)
2262 return keep_toplevel
? -1 : 0;
2263 else if (errno
== EACCES
&& !keep_toplevel
)
2265 * An empty dir could be removable even if it
2268 return rmdir(path
->buf
);
2272 strbuf_complete(path
, '/');
2275 while ((e
= readdir(dir
)) != NULL
) {
2277 if (is_dot_or_dotdot(e
->d_name
))
2280 strbuf_setlen(path
, len
);
2281 strbuf_addstr(path
, e
->d_name
);
2282 if (lstat(path
->buf
, &st
)) {
2283 if (errno
== ENOENT
)
2285 * file disappeared, which is what we
2290 } else if (S_ISDIR(st
.st_mode
)) {
2291 if (!remove_dir_recurse(path
, flag
, &kept_down
))
2292 continue; /* happy */
2293 } else if (!only_empty
&&
2294 (!unlink(path
->buf
) || errno
== ENOENT
)) {
2295 continue; /* happy, too */
2298 /* path too long, stat fails, or non-directory still exists */
2304 strbuf_setlen(path
, original_len
);
2305 if (!ret
&& !keep_toplevel
&& !kept_down
)
2306 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
2309 * report the uplevel that it is not an error that we
2310 * did not rmdir() our directory.
2316 int remove_dir_recursively(struct strbuf
*path
, int flag
)
2318 return remove_dir_recurse(path
, flag
, NULL
);
2321 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
2323 void setup_standard_excludes(struct dir_struct
*dir
)
2325 dir
->exclude_per_dir
= ".gitignore";
2327 /* core.excludefile defaulting to $XDG_HOME/git/ignore */
2329 excludes_file
= xdg_config_home("ignore");
2330 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
2331 add_excludes_from_file_1(dir
, excludes_file
,
2332 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
2334 /* per repository user preference */
2335 if (startup_info
->have_repository
) {
2336 const char *path
= git_path_info_exclude();
2337 if (!access_or_warn(path
, R_OK
, 0))
2338 add_excludes_from_file_1(dir
, path
,
2339 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
2343 int remove_path(const char *name
)
2347 if (unlink(name
) && !is_missing_file_error(errno
))
2350 slash
= strrchr(name
, '/');
2352 char *dirs
= xstrdup(name
);
2353 slash
= dirs
+ (slash
- name
);
2356 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
2363 * Frees memory within dir which was allocated for exclude lists and
2364 * the exclude_stack. Does not free dir itself.
2366 void clear_directory(struct dir_struct
*dir
)
2369 struct exclude_list_group
*group
;
2370 struct exclude_list
*el
;
2371 struct exclude_stack
*stk
;
2373 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
2374 group
= &dir
->exclude_list_group
[i
];
2375 for (j
= 0; j
< group
->nr
; j
++) {
2378 free((char *)el
->src
);
2379 clear_exclude_list(el
);
2384 stk
= dir
->exclude_stack
;
2386 struct exclude_stack
*prev
= stk
->prev
;
2390 strbuf_release(&dir
->basebuf
);
2393 struct ondisk_untracked_cache
{
2394 struct stat_data info_exclude_stat
;
2395 struct stat_data excludes_file_stat
;
2397 unsigned char info_exclude_sha1
[20];
2398 unsigned char excludes_file_sha1
[20];
2399 char exclude_per_dir
[FLEX_ARRAY
];
2402 #define ouc_size(len) (offsetof(struct ondisk_untracked_cache, exclude_per_dir) + len + 1)
2405 int index
; /* number of written untracked_cache_dir */
2406 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
2407 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
2408 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
2410 struct strbuf sb_stat
;
2411 struct strbuf sb_sha1
;
2414 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
2416 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
2417 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
2418 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
2419 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
2420 to
->sd_dev
= htonl(from
->sd_dev
);
2421 to
->sd_ino
= htonl(from
->sd_ino
);
2422 to
->sd_uid
= htonl(from
->sd_uid
);
2423 to
->sd_gid
= htonl(from
->sd_gid
);
2424 to
->sd_size
= htonl(from
->sd_size
);
2427 static void write_one_dir(struct untracked_cache_dir
*untracked
,
2428 struct write_data
*wd
)
2430 struct stat_data stat_data
;
2431 struct strbuf
*out
= &wd
->out
;
2432 unsigned char intbuf
[16];
2433 unsigned int intlen
, value
;
2434 int i
= wd
->index
++;
2437 * untracked_nr should be reset whenever valid is clear, but
2440 if (!untracked
->valid
) {
2441 untracked
->untracked_nr
= 0;
2442 untracked
->check_only
= 0;
2445 if (untracked
->check_only
)
2446 ewah_set(wd
->check_only
, i
);
2447 if (untracked
->valid
) {
2448 ewah_set(wd
->valid
, i
);
2449 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
2450 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
2452 if (!is_null_sha1(untracked
->exclude_sha1
)) {
2453 ewah_set(wd
->sha1_valid
, i
);
2454 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_sha1
, 20);
2457 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
2458 strbuf_add(out
, intbuf
, intlen
);
2460 /* skip non-recurse directories */
2461 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
2462 if (untracked
->dirs
[i
]->recurse
)
2464 intlen
= encode_varint(value
, intbuf
);
2465 strbuf_add(out
, intbuf
, intlen
);
2467 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
2469 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
2470 strbuf_add(out
, untracked
->untracked
[i
],
2471 strlen(untracked
->untracked
[i
]) + 1);
2473 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
2474 if (untracked
->dirs
[i
]->recurse
)
2475 write_one_dir(untracked
->dirs
[i
], wd
);
2478 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
2480 struct ondisk_untracked_cache
*ouc
;
2481 struct write_data wd
;
2482 unsigned char varbuf
[16];
2484 size_t len
= strlen(untracked
->exclude_per_dir
);
2486 FLEX_ALLOC_MEM(ouc
, exclude_per_dir
, untracked
->exclude_per_dir
, len
);
2487 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
2488 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
2489 hashcpy(ouc
->info_exclude_sha1
, untracked
->ss_info_exclude
.sha1
);
2490 hashcpy(ouc
->excludes_file_sha1
, untracked
->ss_excludes_file
.sha1
);
2491 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
2493 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
2494 strbuf_add(out
, varbuf
, varint_len
);
2495 strbuf_addbuf(out
, &untracked
->ident
);
2497 strbuf_add(out
, ouc
, ouc_size(len
));
2501 if (!untracked
->root
) {
2502 varint_len
= encode_varint(0, varbuf
);
2503 strbuf_add(out
, varbuf
, varint_len
);
2508 wd
.check_only
= ewah_new();
2509 wd
.valid
= ewah_new();
2510 wd
.sha1_valid
= ewah_new();
2511 strbuf_init(&wd
.out
, 1024);
2512 strbuf_init(&wd
.sb_stat
, 1024);
2513 strbuf_init(&wd
.sb_sha1
, 1024);
2514 write_one_dir(untracked
->root
, &wd
);
2516 varint_len
= encode_varint(wd
.index
, varbuf
);
2517 strbuf_add(out
, varbuf
, varint_len
);
2518 strbuf_addbuf(out
, &wd
.out
);
2519 ewah_serialize_strbuf(wd
.valid
, out
);
2520 ewah_serialize_strbuf(wd
.check_only
, out
);
2521 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
2522 strbuf_addbuf(out
, &wd
.sb_stat
);
2523 strbuf_addbuf(out
, &wd
.sb_sha1
);
2524 strbuf_addch(out
, '\0'); /* safe guard for string lists */
2526 ewah_free(wd
.valid
);
2527 ewah_free(wd
.check_only
);
2528 ewah_free(wd
.sha1_valid
);
2529 strbuf_release(&wd
.out
);
2530 strbuf_release(&wd
.sb_stat
);
2531 strbuf_release(&wd
.sb_sha1
);
2534 static void free_untracked(struct untracked_cache_dir
*ucd
)
2539 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
2540 free_untracked(ucd
->dirs
[i
]);
2541 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
2542 free(ucd
->untracked
[i
]);
2543 free(ucd
->untracked
);
2548 void free_untracked_cache(struct untracked_cache
*uc
)
2551 free_untracked(uc
->root
);
2557 struct untracked_cache_dir
**ucd
;
2558 struct ewah_bitmap
*check_only
;
2559 struct ewah_bitmap
*valid
;
2560 struct ewah_bitmap
*sha1_valid
;
2561 const unsigned char *data
;
2562 const unsigned char *end
;
2565 static void stat_data_from_disk(struct stat_data
*to
, const struct stat_data
*from
)
2567 to
->sd_ctime
.sec
= get_be32(&from
->sd_ctime
.sec
);
2568 to
->sd_ctime
.nsec
= get_be32(&from
->sd_ctime
.nsec
);
2569 to
->sd_mtime
.sec
= get_be32(&from
->sd_mtime
.sec
);
2570 to
->sd_mtime
.nsec
= get_be32(&from
->sd_mtime
.nsec
);
2571 to
->sd_dev
= get_be32(&from
->sd_dev
);
2572 to
->sd_ino
= get_be32(&from
->sd_ino
);
2573 to
->sd_uid
= get_be32(&from
->sd_uid
);
2574 to
->sd_gid
= get_be32(&from
->sd_gid
);
2575 to
->sd_size
= get_be32(&from
->sd_size
);
2578 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
2579 struct read_data
*rd
)
2581 struct untracked_cache_dir ud
, *untracked
;
2582 const unsigned char *next
, *data
= rd
->data
, *end
= rd
->end
;
2586 memset(&ud
, 0, sizeof(ud
));
2589 value
= decode_varint(&next
);
2593 ud
.untracked_alloc
= value
;
2594 ud
.untracked_nr
= value
;
2595 if (ud
.untracked_nr
)
2596 ALLOC_ARRAY(ud
.untracked
, ud
.untracked_nr
);
2600 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&next
);
2603 ALLOC_ARRAY(ud
.dirs
, ud
.dirs_nr
);
2606 len
= strlen((const char *)data
);
2607 next
= data
+ len
+ 1;
2610 *untracked_
= untracked
= xmalloc(st_add(sizeof(*untracked
), len
));
2611 memcpy(untracked
, &ud
, sizeof(ud
));
2612 memcpy(untracked
->name
, data
, len
+ 1);
2615 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
2616 len
= strlen((const char *)data
);
2617 next
= data
+ len
+ 1;
2620 untracked
->untracked
[i
] = xstrdup((const char*)data
);
2624 rd
->ucd
[rd
->index
++] = untracked
;
2627 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
2628 len
= read_one_dir(untracked
->dirs
+ i
, rd
);
2635 static void set_check_only(size_t pos
, void *cb
)
2637 struct read_data
*rd
= cb
;
2638 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2642 static void read_stat(size_t pos
, void *cb
)
2644 struct read_data
*rd
= cb
;
2645 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2646 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
2647 rd
->data
= rd
->end
+ 1;
2650 stat_data_from_disk(&ud
->stat_data
, (struct stat_data
*)rd
->data
);
2651 rd
->data
+= sizeof(struct stat_data
);
2655 static void read_sha1(size_t pos
, void *cb
)
2657 struct read_data
*rd
= cb
;
2658 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2659 if (rd
->data
+ 20 > rd
->end
) {
2660 rd
->data
= rd
->end
+ 1;
2663 hashcpy(ud
->exclude_sha1
, rd
->data
);
2667 static void load_sha1_stat(struct sha1_stat
*sha1_stat
,
2668 const struct stat_data
*stat
,
2669 const unsigned char *sha1
)
2671 stat_data_from_disk(&sha1_stat
->stat
, stat
);
2672 hashcpy(sha1_stat
->sha1
, sha1
);
2673 sha1_stat
->valid
= 1;
2676 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
2678 const struct ondisk_untracked_cache
*ouc
;
2679 struct untracked_cache
*uc
;
2680 struct read_data rd
;
2681 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
2685 if (sz
<= 1 || end
[-1] != '\0')
2689 ident_len
= decode_varint(&next
);
2690 if (next
+ ident_len
> end
)
2692 ident
= (const char *)next
;
2695 ouc
= (const struct ondisk_untracked_cache
*)next
;
2696 if (next
+ ouc_size(0) > end
)
2699 uc
= xcalloc(1, sizeof(*uc
));
2700 strbuf_init(&uc
->ident
, ident_len
);
2701 strbuf_add(&uc
->ident
, ident
, ident_len
);
2702 load_sha1_stat(&uc
->ss_info_exclude
, &ouc
->info_exclude_stat
,
2703 ouc
->info_exclude_sha1
);
2704 load_sha1_stat(&uc
->ss_excludes_file
, &ouc
->excludes_file_stat
,
2705 ouc
->excludes_file_sha1
);
2706 uc
->dir_flags
= get_be32(&ouc
->dir_flags
);
2707 uc
->exclude_per_dir
= xstrdup(ouc
->exclude_per_dir
);
2708 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
2709 next
+= ouc_size(strlen(ouc
->exclude_per_dir
));
2713 len
= decode_varint(&next
);
2714 if (next
> end
|| len
== 0)
2717 rd
.valid
= ewah_new();
2718 rd
.check_only
= ewah_new();
2719 rd
.sha1_valid
= ewah_new();
2723 ALLOC_ARRAY(rd
.ucd
, len
);
2725 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
2729 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
2734 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
2739 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
2743 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
2744 rd
.data
= next
+ len
;
2745 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
2746 ewah_each_bit(rd
.sha1_valid
, read_sha1
, &rd
);
2751 ewah_free(rd
.valid
);
2752 ewah_free(rd
.check_only
);
2753 ewah_free(rd
.sha1_valid
);
2756 free_untracked_cache(uc
);
2762 static void invalidate_one_directory(struct untracked_cache
*uc
,
2763 struct untracked_cache_dir
*ucd
)
2765 uc
->dir_invalidated
++;
2767 ucd
->untracked_nr
= 0;
2771 * Normally when an entry is added or removed from a directory,
2772 * invalidating that directory is enough. No need to touch its
2773 * ancestors. When a directory is shown as "foo/bar/" in git-status
2774 * however, deleting or adding an entry may have cascading effect.
2776 * Say the "foo/bar/file" has become untracked, we need to tell the
2777 * untracked_cache_dir of "foo" that "bar/" is not an untracked
2778 * directory any more (because "bar" is managed by foo as an untracked
2781 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
2782 * was the last untracked entry in the entire "foo", we should show
2783 * "foo/" instead. Which means we have to invalidate past "bar" up to
2786 * This function traverses all directories from root to leaf. If there
2787 * is a chance of one of the above cases happening, we invalidate back
2788 * to root. Otherwise we just invalidate the leaf. There may be a more
2789 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
2790 * detect these cases and avoid unnecessary invalidation, for example,
2791 * checking for the untracked entry named "bar/" in "foo", but for now
2792 * stick to something safe and simple.
2794 static int invalidate_one_component(struct untracked_cache
*uc
,
2795 struct untracked_cache_dir
*dir
,
2796 const char *path
, int len
)
2798 const char *rest
= strchr(path
, '/');
2801 int component_len
= rest
- path
;
2802 struct untracked_cache_dir
*d
=
2803 lookup_untracked(uc
, dir
, path
, component_len
);
2805 invalidate_one_component(uc
, d
, rest
+ 1,
2806 len
- (component_len
+ 1));
2808 invalidate_one_directory(uc
, dir
);
2812 invalidate_one_directory(uc
, dir
);
2813 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
2816 void untracked_cache_invalidate_path(struct index_state
*istate
,
2819 if (!istate
->untracked
|| !istate
->untracked
->root
)
2821 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
2822 path
, strlen(path
));
2825 void untracked_cache_remove_from_index(struct index_state
*istate
,
2828 untracked_cache_invalidate_path(istate
, path
);
2831 void untracked_cache_add_to_index(struct index_state
*istate
,
2834 untracked_cache_invalidate_path(istate
, path
);
2837 /* Update gitfile and core.worktree setting to connect work tree and git dir */
2838 void connect_work_tree_and_git_dir(const char *work_tree_
, const char *git_dir_
)
2840 struct strbuf gitfile_sb
= STRBUF_INIT
;
2841 struct strbuf cfg_sb
= STRBUF_INIT
;
2842 struct strbuf rel_path
= STRBUF_INIT
;
2843 char *git_dir
, *work_tree
;
2845 /* Prepare .git file */
2846 strbuf_addf(&gitfile_sb
, "%s/.git", work_tree_
);
2847 if (safe_create_leading_directories_const(gitfile_sb
.buf
))
2848 die(_("could not create directories for %s"), gitfile_sb
.buf
);
2850 /* Prepare config file */
2851 strbuf_addf(&cfg_sb
, "%s/config", git_dir_
);
2852 if (safe_create_leading_directories_const(cfg_sb
.buf
))
2853 die(_("could not create directories for %s"), cfg_sb
.buf
);
2855 git_dir
= real_pathdup(git_dir_
, 1);
2856 work_tree
= real_pathdup(work_tree_
, 1);
2858 /* Write .git file */
2859 write_file(gitfile_sb
.buf
, "gitdir: %s",
2860 relative_path(git_dir
, work_tree
, &rel_path
));
2861 /* Update core.worktree setting */
2862 git_config_set_in_file(cfg_sb
.buf
, "core.worktree",
2863 relative_path(work_tree
, git_dir
, &rel_path
));
2865 strbuf_release(&gitfile_sb
);
2866 strbuf_release(&cfg_sb
);
2867 strbuf_release(&rel_path
);
2873 * Migrate the git directory of the given path from old_git_dir to new_git_dir.
2875 void relocate_gitdir(const char *path
, const char *old_git_dir
, const char *new_git_dir
)
2877 if (rename(old_git_dir
, new_git_dir
) < 0)
2878 die_errno(_("could not migrate git directory from '%s' to '%s'"),
2879 old_git_dir
, new_git_dir
);
2881 connect_work_tree_and_git_dir(path
, new_git_dir
);