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
13 #include "wildmatch.h"
17 #include "ewah/ewok.h"
20 * Tells read_directory_recursive how a file or directory should be treated.
21 * Values are ordered by significance, e.g. if a directory contains both
22 * excluded and untracked files, it is listed as untracked because
23 * path_untracked > path_excluded.
33 * Support data structure for our opendir/readdir/closedir wrappers
37 struct untracked_cache_dir
*untracked
;
43 struct untracked_cache_dir
*ucd
;
46 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
47 const char *path
, int len
, struct untracked_cache_dir
*untracked
,
48 int check_only
, const struct pathspec
*pathspec
);
49 static int get_dtype(struct dirent
*de
, const char *path
, int len
);
51 int fspathcmp(const char *a
, const char *b
)
53 return ignore_case
? strcasecmp(a
, b
) : strcmp(a
, b
);
56 int fspathncmp(const char *a
, const char *b
, size_t count
)
58 return ignore_case
? strncasecmp(a
, b
, count
) : strncmp(a
, b
, count
);
61 int git_fnmatch(const struct pathspec_item
*item
,
62 const char *pattern
, const char *string
,
66 if (ps_strncmp(item
, pattern
, string
, prefix
))
71 if (item
->flags
& PATHSPEC_ONESTAR
) {
72 int pattern_len
= strlen(++pattern
);
73 int string_len
= strlen(string
);
74 return string_len
< pattern_len
||
75 ps_strcmp(item
, pattern
,
76 string
+ string_len
- pattern_len
);
78 if (item
->magic
& PATHSPEC_GLOB
)
79 return wildmatch(pattern
, string
,
81 (item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0),
84 /* wildmatch has not learned no FNM_PATHNAME mode yet */
85 return wildmatch(pattern
, string
,
86 item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0,
90 static int fnmatch_icase_mem(const char *pattern
, int patternlen
,
91 const char *string
, int stringlen
,
95 struct strbuf pat_buf
= STRBUF_INIT
;
96 struct strbuf str_buf
= STRBUF_INIT
;
97 const char *use_pat
= pattern
;
98 const char *use_str
= string
;
100 if (pattern
[patternlen
]) {
101 strbuf_add(&pat_buf
, pattern
, patternlen
);
102 use_pat
= pat_buf
.buf
;
104 if (string
[stringlen
]) {
105 strbuf_add(&str_buf
, string
, stringlen
);
106 use_str
= str_buf
.buf
;
110 flags
|= WM_CASEFOLD
;
111 match_status
= wildmatch(use_pat
, use_str
, flags
, NULL
);
113 strbuf_release(&pat_buf
);
114 strbuf_release(&str_buf
);
119 static size_t common_prefix_len(const struct pathspec
*pathspec
)
125 * ":(icase)path" is treated as a pathspec full of
126 * wildcard. In other words, only prefix is considered common
127 * prefix. If the pathspec is abc/foo abc/bar, running in
128 * subdir xyz, the common prefix is still xyz, not xuz/abc as
131 GUARD_PATHSPEC(pathspec
,
139 for (n
= 0; n
< pathspec
->nr
; n
++) {
140 size_t i
= 0, len
= 0, item_len
;
141 if (pathspec
->items
[n
].magic
& PATHSPEC_EXCLUDE
)
143 if (pathspec
->items
[n
].magic
& PATHSPEC_ICASE
)
144 item_len
= pathspec
->items
[n
].prefix
;
146 item_len
= pathspec
->items
[n
].nowildcard_len
;
147 while (i
< item_len
&& (n
== 0 || i
< max
)) {
148 char c
= pathspec
->items
[n
].match
[i
];
149 if (c
!= pathspec
->items
[0].match
[i
])
155 if (n
== 0 || len
< max
) {
165 * Returns a copy of the longest leading path common among all
168 char *common_prefix(const struct pathspec
*pathspec
)
170 unsigned long len
= common_prefix_len(pathspec
);
172 return len
? xmemdupz(pathspec
->items
[0].match
, len
) : NULL
;
175 int fill_directory(struct dir_struct
*dir
, const struct pathspec
*pathspec
)
181 * Calculate common prefix for the pathspec, and
182 * use that to optimize the directory walk
184 prefix_len
= common_prefix_len(pathspec
);
185 prefix
= prefix_len
? pathspec
->items
[0].match
: "";
187 /* Read the directory and prune it */
188 read_directory(dir
, prefix
, prefix_len
, pathspec
);
193 int within_depth(const char *name
, int namelen
,
194 int depth
, int max_depth
)
196 const char *cp
= name
, *cpe
= name
+ namelen
;
202 if (depth
> max_depth
)
208 #define DO_MATCH_EXCLUDE (1<<0)
209 #define DO_MATCH_DIRECTORY (1<<1)
210 #define DO_MATCH_SUBMODULE (1<<2)
213 * Does 'match' match the given name?
214 * A match is found if
216 * (1) the 'match' string is leading directory of 'name', or
217 * (2) the 'match' string is a wildcard and matches 'name', or
218 * (3) the 'match' string is exactly the same as 'name'.
220 * and the return value tells which case it was.
222 * It returns 0 when there is no match.
224 static int match_pathspec_item(const struct pathspec_item
*item
, int prefix
,
225 const char *name
, int namelen
, unsigned flags
)
227 /* name/namelen has prefix cut off by caller */
228 const char *match
= item
->match
+ prefix
;
229 int matchlen
= item
->len
- prefix
;
232 * The normal call pattern is:
233 * 1. prefix = common_prefix_len(ps);
234 * 2. prune something, or fill_directory
235 * 3. match_pathspec()
237 * 'prefix' at #1 may be shorter than the command's prefix and
238 * it's ok for #2 to match extra files. Those extras will be
241 * Suppose the pathspec is 'foo' and '../bar' running from
242 * subdir 'xyz'. The common prefix at #1 will be empty, thanks
243 * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The
244 * user does not want XYZ/foo, only the "foo" part should be
245 * case-insensitive. We need to filter out XYZ/foo here. In
246 * other words, we do not trust the caller on comparing the
247 * prefix part when :(icase) is involved. We do exact
248 * comparison ourselves.
250 * Normally the caller (common_prefix_len() in fact) does
251 * _exact_ matching on name[-prefix+1..-1] and we do not need
252 * to check that part. Be defensive and check it anyway, in
253 * case common_prefix_len is changed, or a new caller is
254 * introduced that does not use common_prefix_len.
256 * If the penalty turns out too high when prefix is really
257 * long, maybe change it to
258 * strncmp(match, name, item->prefix - prefix)
260 if (item
->prefix
&& (item
->magic
& PATHSPEC_ICASE
) &&
261 strncmp(item
->match
, name
- prefix
, item
->prefix
))
264 /* If the match was just the prefix, we matched */
266 return MATCHED_RECURSIVELY
;
268 if (matchlen
<= namelen
&& !ps_strncmp(item
, match
, name
, matchlen
)) {
269 if (matchlen
== namelen
)
270 return MATCHED_EXACTLY
;
272 if (match
[matchlen
-1] == '/' || name
[matchlen
] == '/')
273 return MATCHED_RECURSIVELY
;
274 } else if ((flags
& DO_MATCH_DIRECTORY
) &&
275 match
[matchlen
- 1] == '/' &&
276 namelen
== matchlen
- 1 &&
277 !ps_strncmp(item
, match
, name
, namelen
))
278 return MATCHED_EXACTLY
;
280 if (item
->nowildcard_len
< item
->len
&&
281 !git_fnmatch(item
, match
, name
,
282 item
->nowildcard_len
- prefix
))
283 return MATCHED_FNMATCH
;
285 /* Perform checks to see if "name" is a super set of the pathspec */
286 if (flags
& DO_MATCH_SUBMODULE
) {
287 /* name is a literal prefix of the pathspec */
288 if ((namelen
< matchlen
) &&
289 (match
[namelen
] == '/') &&
290 !ps_strncmp(item
, match
, name
, namelen
))
291 return MATCHED_RECURSIVELY
;
293 /* name" doesn't match up to the first wild character */
294 if (item
->nowildcard_len
< item
->len
&&
295 ps_strncmp(item
, match
, name
,
296 item
->nowildcard_len
- prefix
))
300 * Here is where we would perform a wildmatch to check if
301 * "name" can be matched as a directory (or a prefix) against
302 * the pathspec. Since wildmatch doesn't have this capability
303 * at the present we have to punt and say that it is a match,
304 * potentially returning a false positive
305 * The submodules themselves will be able to perform more
306 * accurate matching to determine if the pathspec matches.
308 return MATCHED_RECURSIVELY
;
315 * Given a name and a list of pathspecs, returns the nature of the
316 * closest (i.e. most specific) match of the name to any of the
319 * The caller typically calls this multiple times with the same
320 * pathspec and seen[] array but with different name/namelen
321 * (e.g. entries from the index) and is interested in seeing if and
322 * how each pathspec matches all the names it calls this function
323 * with. A mark is left in the seen[] array for each pathspec element
324 * indicating the closest type of match that element achieved, so if
325 * seen[n] remains zero after multiple invocations, that means the nth
326 * pathspec did not match any names, which could indicate that the
327 * user mistyped the nth pathspec.
329 static int do_match_pathspec(const struct pathspec
*ps
,
330 const char *name
, int namelen
,
331 int prefix
, char *seen
,
334 int i
, retval
= 0, exclude
= flags
& DO_MATCH_EXCLUDE
;
345 if (!ps
->recursive
||
346 !(ps
->magic
& PATHSPEC_MAXDEPTH
) ||
348 return MATCHED_RECURSIVELY
;
350 if (within_depth(name
, namelen
, 0, ps
->max_depth
))
351 return MATCHED_EXACTLY
;
359 for (i
= ps
->nr
- 1; i
>= 0; i
--) {
362 if ((!exclude
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
) ||
363 ( exclude
&& !(ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)))
366 if (seen
&& seen
[i
] == MATCHED_EXACTLY
)
369 * Make exclude patterns optional and never report
370 * "pathspec ':(exclude)foo' matches no files"
372 if (seen
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)
373 seen
[i
] = MATCHED_FNMATCH
;
374 how
= match_pathspec_item(ps
->items
+i
, prefix
, name
,
377 (ps
->magic
& PATHSPEC_MAXDEPTH
) &&
378 ps
->max_depth
!= -1 &&
379 how
&& how
!= MATCHED_FNMATCH
) {
380 int len
= ps
->items
[i
].len
;
381 if (name
[len
] == '/')
383 if (within_depth(name
+len
, namelen
-len
, 0, ps
->max_depth
))
384 how
= MATCHED_EXACTLY
;
391 if (seen
&& seen
[i
] < how
)
398 int match_pathspec(const struct pathspec
*ps
,
399 const char *name
, int namelen
,
400 int prefix
, char *seen
, int is_dir
)
402 int positive
, negative
;
403 unsigned flags
= is_dir
? DO_MATCH_DIRECTORY
: 0;
404 positive
= do_match_pathspec(ps
, name
, namelen
,
405 prefix
, seen
, flags
);
406 if (!(ps
->magic
& PATHSPEC_EXCLUDE
) || !positive
)
408 negative
= do_match_pathspec(ps
, name
, namelen
,
410 flags
| DO_MATCH_EXCLUDE
);
411 return negative
? 0 : positive
;
415 * Check if a submodule is a superset of the pathspec
417 int submodule_path_match(const struct pathspec
*ps
,
418 const char *submodule_name
,
421 int matched
= do_match_pathspec(ps
, submodule_name
,
422 strlen(submodule_name
),
429 int report_path_error(const char *ps_matched
,
430 const struct pathspec
*pathspec
,
434 * Make sure all pathspec matched; otherwise it is an error.
437 for (num
= 0; num
< pathspec
->nr
; num
++) {
438 int other
, found_dup
;
443 * The caller might have fed identical pathspec
444 * twice. Do not barf on such a mistake.
445 * FIXME: parse_pathspec should have eliminated
446 * duplicate pathspec.
448 for (found_dup
= other
= 0;
449 !found_dup
&& other
< pathspec
->nr
;
451 if (other
== num
|| !ps_matched
[other
])
453 if (!strcmp(pathspec
->items
[other
].original
,
454 pathspec
->items
[num
].original
))
456 * Ok, we have a match already.
463 error("pathspec '%s' did not match any file(s) known to git.",
464 pathspec
->items
[num
].original
);
471 * Return the length of the "simple" part of a path match limiter.
473 int simple_length(const char *match
)
478 unsigned char c
= *match
++;
480 if (c
== '\0' || is_glob_special(c
))
485 int no_wildcard(const char *string
)
487 return string
[simple_length(string
)] == '\0';
490 void parse_exclude_pattern(const char **pattern
,
495 const char *p
= *pattern
;
500 *flags
|= EXC_FLAG_NEGATIVE
;
504 if (len
&& p
[len
- 1] == '/') {
506 *flags
|= EXC_FLAG_MUSTBEDIR
;
508 for (i
= 0; i
< len
; i
++) {
513 *flags
|= EXC_FLAG_NODIR
;
514 *nowildcardlen
= simple_length(p
);
516 * we should have excluded the trailing slash from 'p' too,
517 * but that's one more allocation. Instead just make sure
518 * nowildcardlen does not exceed real patternlen
520 if (*nowildcardlen
> len
)
521 *nowildcardlen
= len
;
522 if (*p
== '*' && no_wildcard(p
+ 1))
523 *flags
|= EXC_FLAG_ENDSWITH
;
528 void add_exclude(const char *string
, const char *base
,
529 int baselen
, struct exclude_list
*el
, int srcpos
)
536 parse_exclude_pattern(&string
, &patternlen
, &flags
, &nowildcardlen
);
537 if (flags
& EXC_FLAG_MUSTBEDIR
) {
538 FLEXPTR_ALLOC_MEM(x
, pattern
, string
, patternlen
);
540 x
= xmalloc(sizeof(*x
));
543 x
->patternlen
= patternlen
;
544 x
->nowildcardlen
= nowildcardlen
;
546 x
->baselen
= baselen
;
549 ALLOC_GROW(el
->excludes
, el
->nr
+ 1, el
->alloc
);
550 el
->excludes
[el
->nr
++] = x
;
554 static void *read_skip_worktree_file_from_index(const char *path
, size_t *size
,
555 struct sha1_stat
*sha1_stat
)
559 enum object_type type
;
563 pos
= cache_name_pos(path
, len
);
566 if (!ce_skip_worktree(active_cache
[pos
]))
568 data
= read_sha1_file(active_cache
[pos
]->oid
.hash
, &type
, &sz
);
569 if (!data
|| type
!= OBJ_BLOB
) {
575 memset(&sha1_stat
->stat
, 0, sizeof(sha1_stat
->stat
));
576 hashcpy(sha1_stat
->sha1
, active_cache
[pos
]->oid
.hash
);
582 * Frees memory within el which was allocated for exclude patterns and
583 * the file buffer. Does not free el itself.
585 void clear_exclude_list(struct exclude_list
*el
)
589 for (i
= 0; i
< el
->nr
; i
++)
590 free(el
->excludes
[i
]);
594 memset(el
, 0, sizeof(*el
));
597 static void trim_trailing_spaces(char *buf
)
599 char *p
, *last_space
= NULL
;
601 for (p
= buf
; *p
; p
++)
621 * Given a subdirectory name and "dir" of the current directory,
622 * search the subdir in "dir" and return it, or create a new one if it
623 * does not exist in "dir".
625 * If "name" has the trailing slash, it'll be excluded in the search.
627 static struct untracked_cache_dir
*lookup_untracked(struct untracked_cache
*uc
,
628 struct untracked_cache_dir
*dir
,
629 const char *name
, int len
)
632 struct untracked_cache_dir
*d
;
635 if (len
&& name
[len
- 1] == '/')
639 while (last
> first
) {
640 int cmp
, next
= (last
+ first
) >> 1;
642 cmp
= strncmp(name
, d
->name
, len
);
643 if (!cmp
&& strlen(d
->name
) > len
)
655 FLEX_ALLOC_MEM(d
, name
, name
, len
);
657 ALLOC_GROW(dir
->dirs
, dir
->dirs_nr
+ 1, dir
->dirs_alloc
);
658 memmove(dir
->dirs
+ first
+ 1, dir
->dirs
+ first
,
659 (dir
->dirs_nr
- first
) * sizeof(*dir
->dirs
));
661 dir
->dirs
[first
] = d
;
665 static void do_invalidate_gitignore(struct untracked_cache_dir
*dir
)
669 dir
->untracked_nr
= 0;
670 for (i
= 0; i
< dir
->dirs_nr
; i
++)
671 do_invalidate_gitignore(dir
->dirs
[i
]);
674 static void invalidate_gitignore(struct untracked_cache
*uc
,
675 struct untracked_cache_dir
*dir
)
677 uc
->gitignore_invalidated
++;
678 do_invalidate_gitignore(dir
);
681 static void invalidate_directory(struct untracked_cache
*uc
,
682 struct untracked_cache_dir
*dir
)
685 uc
->dir_invalidated
++;
687 dir
->untracked_nr
= 0;
688 for (i
= 0; i
< dir
->dirs_nr
; i
++)
689 dir
->dirs
[i
]->recurse
= 0;
693 * Given a file with name "fname", read it (either from disk, or from
694 * the index if "check_index" is non-zero), parse it and store the
695 * exclude rules in "el".
697 * If "ss" is not NULL, compute SHA-1 of the exclude file and fill
698 * stat data from disk (only valid if add_excludes returns zero). If
699 * ss_valid is non-zero, "ss" must contain good value as input.
701 static int add_excludes(const char *fname
, const char *base
, int baselen
,
702 struct exclude_list
*el
, int check_index
,
703 struct sha1_stat
*sha1_stat
)
706 int fd
, i
, lineno
= 1;
710 fd
= open(fname
, O_RDONLY
);
711 if (fd
< 0 || fstat(fd
, &st
) < 0) {
713 warn_on_inaccessible(fname
);
717 (buf
= read_skip_worktree_file_from_index(fname
, &size
, sha1_stat
)) == NULL
)
723 if (buf
[size
-1] != '\n') {
724 buf
= xrealloc(buf
, st_add(size
, 1));
728 size
= xsize_t(st
.st_size
);
731 fill_stat_data(&sha1_stat
->stat
, &st
);
732 hashcpy(sha1_stat
->sha1
, EMPTY_BLOB_SHA1_BIN
);
733 sha1_stat
->valid
= 1;
738 buf
= xmallocz(size
);
739 if (read_in_full(fd
, buf
, size
) != size
) {
748 if (sha1_stat
->valid
&&
749 !match_stat_data_racy(&the_index
, &sha1_stat
->stat
, &st
))
750 ; /* no content change, ss->sha1 still good */
751 else if (check_index
&&
752 (pos
= cache_name_pos(fname
, strlen(fname
))) >= 0 &&
753 !ce_stage(active_cache
[pos
]) &&
754 ce_uptodate(active_cache
[pos
]) &&
755 !would_convert_to_git(fname
))
756 hashcpy(sha1_stat
->sha1
,
757 active_cache
[pos
]->oid
.hash
);
759 hash_sha1_file(buf
, size
, "blob", sha1_stat
->sha1
);
760 fill_stat_data(&sha1_stat
->stat
, &st
);
761 sha1_stat
->valid
= 1;
767 if (skip_utf8_bom(&buf
, size
))
768 size
-= buf
- el
->filebuf
;
772 for (i
= 0; i
< size
; i
++) {
773 if (buf
[i
] == '\n') {
774 if (entry
!= buf
+ i
&& entry
[0] != '#') {
775 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
776 trim_trailing_spaces(entry
);
777 add_exclude(entry
, base
, baselen
, el
, lineno
);
786 int add_excludes_from_file_to_list(const char *fname
, const char *base
,
787 int baselen
, struct exclude_list
*el
,
790 return add_excludes(fname
, base
, baselen
, el
, check_index
, NULL
);
793 struct exclude_list
*add_exclude_list(struct dir_struct
*dir
,
794 int group_type
, const char *src
)
796 struct exclude_list
*el
;
797 struct exclude_list_group
*group
;
799 group
= &dir
->exclude_list_group
[group_type
];
800 ALLOC_GROW(group
->el
, group
->nr
+ 1, group
->alloc
);
801 el
= &group
->el
[group
->nr
++];
802 memset(el
, 0, sizeof(*el
));
808 * Used to set up core.excludesfile and .git/info/exclude lists.
810 static void add_excludes_from_file_1(struct dir_struct
*dir
, const char *fname
,
811 struct sha1_stat
*sha1_stat
)
813 struct exclude_list
*el
;
815 * catch setup_standard_excludes() that's called before
816 * dir->untracked is assigned. That function behaves
817 * differently when dir->untracked is non-NULL.
820 dir
->unmanaged_exclude_files
++;
821 el
= add_exclude_list(dir
, EXC_FILE
, fname
);
822 if (add_excludes(fname
, "", 0, el
, 0, sha1_stat
) < 0)
823 die("cannot use %s as an exclude file", fname
);
826 void add_excludes_from_file(struct dir_struct
*dir
, const char *fname
)
828 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
829 add_excludes_from_file_1(dir
, fname
, NULL
);
832 int match_basename(const char *basename
, int basenamelen
,
833 const char *pattern
, int prefix
, int patternlen
,
836 if (prefix
== patternlen
) {
837 if (patternlen
== basenamelen
&&
838 !fspathncmp(pattern
, basename
, basenamelen
))
840 } else if (flags
& EXC_FLAG_ENDSWITH
) {
841 /* "*literal" matching against "fooliteral" */
842 if (patternlen
- 1 <= basenamelen
&&
843 !fspathncmp(pattern
+ 1,
844 basename
+ basenamelen
- (patternlen
- 1),
848 if (fnmatch_icase_mem(pattern
, patternlen
,
849 basename
, basenamelen
,
856 int match_pathname(const char *pathname
, int pathlen
,
857 const char *base
, int baselen
,
858 const char *pattern
, int prefix
, int patternlen
,
865 * match with FNM_PATHNAME; the pattern has base implicitly
868 if (*pattern
== '/') {
875 * baselen does not count the trailing slash. base[] may or
876 * may not end with a trailing slash though.
878 if (pathlen
< baselen
+ 1 ||
879 (baselen
&& pathname
[baselen
] != '/') ||
880 fspathncmp(pathname
, base
, baselen
))
883 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
884 name
= pathname
+ pathlen
- namelen
;
888 * if the non-wildcard part is longer than the
889 * remaining pathname, surely it cannot match.
891 if (prefix
> namelen
)
894 if (fspathncmp(pattern
, name
, prefix
))
897 patternlen
-= prefix
;
902 * If the whole pattern did not have a wildcard,
903 * then our prefix match is all we need; we
904 * do not need to call fnmatch at all.
906 if (!patternlen
&& !namelen
)
910 return fnmatch_icase_mem(pattern
, patternlen
,
916 * Scan the given exclude list in reverse to see whether pathname
917 * should be ignored. The first match (i.e. the last on the list), if
918 * any, determines the fate. Returns the exclude_list element which
919 * matched, or NULL for undecided.
921 static struct exclude
*last_exclude_matching_from_list(const char *pathname
,
923 const char *basename
,
925 struct exclude_list
*el
)
927 struct exclude
*exc
= NULL
; /* undecided */
931 return NULL
; /* undefined */
933 for (i
= el
->nr
- 1; 0 <= i
; i
--) {
934 struct exclude
*x
= el
->excludes
[i
];
935 const char *exclude
= x
->pattern
;
936 int prefix
= x
->nowildcardlen
;
938 if (x
->flags
& EXC_FLAG_MUSTBEDIR
) {
939 if (*dtype
== DT_UNKNOWN
)
940 *dtype
= get_dtype(NULL
, pathname
, pathlen
);
941 if (*dtype
!= DT_DIR
)
945 if (x
->flags
& EXC_FLAG_NODIR
) {
946 if (match_basename(basename
,
947 pathlen
- (basename
- pathname
),
948 exclude
, prefix
, x
->patternlen
,
956 assert(x
->baselen
== 0 || x
->base
[x
->baselen
- 1] == '/');
957 if (match_pathname(pathname
, pathlen
,
958 x
->base
, x
->baselen
? x
->baselen
- 1 : 0,
959 exclude
, prefix
, x
->patternlen
, x
->flags
)) {
968 * Scan the list and let the last match determine the fate.
969 * Return 1 for exclude, 0 for include and -1 for undecided.
971 int is_excluded_from_list(const char *pathname
,
972 int pathlen
, const char *basename
, int *dtype
,
973 struct exclude_list
*el
)
975 struct exclude
*exclude
;
976 exclude
= last_exclude_matching_from_list(pathname
, pathlen
, basename
, dtype
, el
);
978 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
979 return -1; /* undecided */
982 static struct exclude
*last_exclude_matching_from_lists(struct dir_struct
*dir
,
983 const char *pathname
, int pathlen
, const char *basename
,
987 struct exclude_list_group
*group
;
988 struct exclude
*exclude
;
989 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
990 group
= &dir
->exclude_list_group
[i
];
991 for (j
= group
->nr
- 1; j
>= 0; j
--) {
992 exclude
= last_exclude_matching_from_list(
993 pathname
, pathlen
, basename
, dtype_p
,
1003 * Loads the per-directory exclude list for the substring of base
1004 * which has a char length of baselen.
1006 static void prep_exclude(struct dir_struct
*dir
, const char *base
, int baselen
)
1008 struct exclude_list_group
*group
;
1009 struct exclude_list
*el
;
1010 struct exclude_stack
*stk
= NULL
;
1011 struct untracked_cache_dir
*untracked
;
1014 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1017 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1018 * which originate from directories not in the prefix of the
1019 * path being checked.
1021 while ((stk
= dir
->exclude_stack
) != NULL
) {
1022 if (stk
->baselen
<= baselen
&&
1023 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1025 el
= &group
->el
[dir
->exclude_stack
->exclude_ix
];
1026 dir
->exclude_stack
= stk
->prev
;
1027 dir
->exclude
= NULL
;
1028 free((char *)el
->src
); /* see strbuf_detach() below */
1029 clear_exclude_list(el
);
1034 /* Skip traversing into sub directories if the parent is excluded */
1039 * Lazy initialization. All call sites currently just
1040 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1041 * them seems lots of work for little benefit.
1043 if (!dir
->basebuf
.buf
)
1044 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1046 /* Read from the parent directories and push them down. */
1047 current
= stk
? stk
->baselen
: -1;
1048 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1050 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1054 while (current
< baselen
) {
1056 struct sha1_stat sha1_stat
;
1058 stk
= xcalloc(1, sizeof(*stk
));
1063 cp
= strchr(base
+ current
+ 1, '/');
1065 die("oops in prep_exclude");
1068 lookup_untracked(dir
->untracked
, untracked
,
1070 cp
- base
- current
);
1072 stk
->prev
= dir
->exclude_stack
;
1073 stk
->baselen
= cp
- base
;
1074 stk
->exclude_ix
= group
->nr
;
1075 stk
->ucd
= untracked
;
1076 el
= add_exclude_list(dir
, EXC_DIRS
, NULL
);
1077 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1078 assert(stk
->baselen
== dir
->basebuf
.len
);
1080 /* Abort if the directory is excluded */
1083 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1084 dir
->exclude
= last_exclude_matching_from_lists(dir
,
1085 dir
->basebuf
.buf
, stk
->baselen
- 1,
1086 dir
->basebuf
.buf
+ current
, &dt
);
1087 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1089 dir
->exclude
->flags
& EXC_FLAG_NEGATIVE
)
1090 dir
->exclude
= NULL
;
1092 dir
->exclude_stack
= stk
;
1097 /* Try to read per-directory file */
1098 hashclr(sha1_stat
.sha1
);
1099 sha1_stat
.valid
= 0;
1100 if (dir
->exclude_per_dir
&&
1102 * If we know that no files have been added in
1103 * this directory (i.e. valid_cached_dir() has
1104 * been executed and set untracked->valid) ..
1106 (!untracked
|| !untracked
->valid
||
1108 * .. and .gitignore does not exist before
1109 * (i.e. null exclude_sha1). Then we can skip
1110 * loading .gitignore, which would result in
1113 !is_null_sha1(untracked
->exclude_sha1
))) {
1115 * dir->basebuf gets reused by the traversal, but we
1116 * need fname to remain unchanged to ensure the src
1117 * member of each struct exclude correctly
1118 * back-references its source file. Other invocations
1119 * of add_exclude_list provide stable strings, so we
1120 * strbuf_detach() and free() here in the caller.
1122 struct strbuf sb
= STRBUF_INIT
;
1123 strbuf_addbuf(&sb
, &dir
->basebuf
);
1124 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1125 el
->src
= strbuf_detach(&sb
, NULL
);
1126 add_excludes(el
->src
, el
->src
, stk
->baselen
, el
, 1,
1127 untracked
? &sha1_stat
: NULL
);
1130 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1131 * will first be called in valid_cached_dir() then maybe many
1132 * times more in last_exclude_matching(). When the cache is
1133 * used, last_exclude_matching() will not be called and
1134 * reading .gitignore content will be a waste.
1136 * So when it's called by valid_cached_dir() and we can get
1137 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1138 * modified on work tree), we could delay reading the
1139 * .gitignore content until we absolutely need it in
1140 * last_exclude_matching(). Be careful about ignore rule
1141 * order, though, if you do that.
1144 hashcmp(sha1_stat
.sha1
, untracked
->exclude_sha1
)) {
1145 invalidate_gitignore(dir
->untracked
, untracked
);
1146 hashcpy(untracked
->exclude_sha1
, sha1_stat
.sha1
);
1148 dir
->exclude_stack
= stk
;
1149 current
= stk
->baselen
;
1151 strbuf_setlen(&dir
->basebuf
, baselen
);
1155 * Loads the exclude lists for the directory containing pathname, then
1156 * scans all exclude lists to determine whether pathname is excluded.
1157 * Returns the exclude_list element which matched, or NULL for
1160 struct exclude
*last_exclude_matching(struct dir_struct
*dir
,
1161 const char *pathname
,
1164 int pathlen
= strlen(pathname
);
1165 const char *basename
= strrchr(pathname
, '/');
1166 basename
= (basename
) ? basename
+1 : pathname
;
1168 prep_exclude(dir
, pathname
, basename
-pathname
);
1171 return dir
->exclude
;
1173 return last_exclude_matching_from_lists(dir
, pathname
, pathlen
,
1178 * Loads the exclude lists for the directory containing pathname, then
1179 * scans all exclude lists to determine whether pathname is excluded.
1180 * Returns 1 if true, otherwise 0.
1182 int is_excluded(struct dir_struct
*dir
, const char *pathname
, int *dtype_p
)
1184 struct exclude
*exclude
=
1185 last_exclude_matching(dir
, pathname
, dtype_p
);
1187 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1191 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1193 struct dir_entry
*ent
;
1195 FLEX_ALLOC_MEM(ent
, name
, pathname
, len
);
1200 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
, const char *pathname
, int len
)
1202 if (cache_file_exists(pathname
, len
, ignore_case
))
1205 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1206 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1209 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
, const char *pathname
, int len
)
1211 if (!cache_name_is_other(pathname
, len
))
1214 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1215 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1219 index_nonexistent
= 0,
1225 * Do not use the alphabetically sorted index to look up
1226 * the directory name; instead, use the case insensitive
1229 static enum exist_status
directory_exists_in_index_icase(const char *dirname
, int len
)
1231 struct cache_entry
*ce
;
1233 if (cache_dir_exists(dirname
, len
))
1234 return index_directory
;
1236 ce
= cache_file_exists(dirname
, len
, ignore_case
);
1237 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1238 return index_gitdir
;
1240 return index_nonexistent
;
1244 * The index sorts alphabetically by entry name, which
1245 * means that a gitlink sorts as '\0' at the end, while
1246 * a directory (which is defined not as an entry, but as
1247 * the files it contains) will sort with the '/' at the
1250 static enum exist_status
directory_exists_in_index(const char *dirname
, int len
)
1255 return directory_exists_in_index_icase(dirname
, len
);
1257 pos
= cache_name_pos(dirname
, len
);
1260 while (pos
< active_nr
) {
1261 const struct cache_entry
*ce
= active_cache
[pos
++];
1262 unsigned char endchar
;
1264 if (strncmp(ce
->name
, dirname
, len
))
1266 endchar
= ce
->name
[len
];
1270 return index_directory
;
1271 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1272 return index_gitdir
;
1274 return index_nonexistent
;
1278 * When we find a directory when traversing the filesystem, we
1279 * have three distinct cases:
1282 * - see it as a directory
1285 * and which one we choose depends on a combination of existing
1286 * git index contents and the flags passed into the directory
1287 * traversal routine.
1289 * Case 1: If we *already* have entries in the index under that
1290 * directory name, we always recurse into the directory to see
1293 * Case 2: If we *already* have that directory name as a gitlink,
1294 * we always continue to see it as a gitlink, regardless of whether
1295 * there is an actual git directory there or not (it might not
1296 * be checked out as a subproject!)
1298 * Case 3: if we didn't have it in the index previously, we
1299 * have a few sub-cases:
1301 * (a) if "show_other_directories" is true, we show it as
1302 * just a directory, unless "hide_empty_directories" is
1303 * also true, in which case we need to check if it contains any
1304 * untracked and / or ignored files.
1305 * (b) if it looks like a git directory, and we don't have
1306 * 'no_gitlinks' set we treat it as a gitlink, and show it
1308 * (c) otherwise, we recurse into it.
1310 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1311 struct untracked_cache_dir
*untracked
,
1312 const char *dirname
, int len
, int baselen
, int exclude
,
1313 const struct pathspec
*pathspec
)
1315 /* The "len-1" is to strip the final '/' */
1316 switch (directory_exists_in_index(dirname
, len
-1)) {
1317 case index_directory
:
1318 return path_recurse
;
1323 case index_nonexistent
:
1324 if (dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)
1326 if (!(dir
->flags
& DIR_NO_GITLINKS
)) {
1327 unsigned char sha1
[20];
1328 if (resolve_gitlink_ref(dirname
, "HEAD", sha1
) == 0)
1329 return path_untracked
;
1331 return path_recurse
;
1334 /* This is the "show_other_directories" case */
1336 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1337 return exclude
? path_excluded
: path_untracked
;
1339 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1340 dirname
+ baselen
, len
- baselen
);
1341 return read_directory_recursive(dir
, dirname
, len
,
1342 untracked
, 1, pathspec
);
1346 * This is an inexact early pruning of any recursive directory
1347 * reading - if the path cannot possibly be in the pathspec,
1348 * return true, and we'll skip it early.
1350 static int simplify_away(const char *path
, int pathlen
,
1351 const struct pathspec
*pathspec
)
1355 if (!pathspec
|| !pathspec
->nr
)
1358 GUARD_PATHSPEC(pathspec
,
1366 for (i
= 0; i
< pathspec
->nr
; i
++) {
1367 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1368 int len
= item
->nowildcard_len
;
1372 if (!ps_strncmp(item
, item
->match
, path
, len
))
1380 * This function tells us whether an excluded path matches a
1381 * list of "interesting" pathspecs. That is, whether a path matched
1382 * by any of the pathspecs could possibly be ignored by excluding
1383 * the specified path. This can happen if:
1385 * 1. the path is mentioned explicitly in the pathspec
1387 * 2. the path is a directory prefix of some element in the
1390 static int exclude_matches_pathspec(const char *path
, int pathlen
,
1391 const struct pathspec
*pathspec
)
1395 if (!pathspec
|| !pathspec
->nr
)
1398 GUARD_PATHSPEC(pathspec
,
1406 for (i
= 0; i
< pathspec
->nr
; i
++) {
1407 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1408 int len
= item
->nowildcard_len
;
1410 if (len
== pathlen
&&
1411 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1413 if (len
> pathlen
&&
1414 item
->match
[pathlen
] == '/' &&
1415 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1421 static int get_index_dtype(const char *path
, int len
)
1424 const struct cache_entry
*ce
;
1426 ce
= cache_file_exists(path
, len
, 0);
1428 if (!ce_uptodate(ce
))
1430 if (S_ISGITLINK(ce
->ce_mode
))
1433 * Nobody actually cares about the
1434 * difference between DT_LNK and DT_REG
1439 /* Try to look it up as a directory */
1440 pos
= cache_name_pos(path
, len
);
1444 while (pos
< active_nr
) {
1445 ce
= active_cache
[pos
++];
1446 if (strncmp(ce
->name
, path
, len
))
1448 if (ce
->name
[len
] > '/')
1450 if (ce
->name
[len
] < '/')
1452 if (!ce_uptodate(ce
))
1453 break; /* continue? */
1459 static int get_dtype(struct dirent
*de
, const char *path
, int len
)
1461 int dtype
= de
? DTYPE(de
) : DT_UNKNOWN
;
1464 if (dtype
!= DT_UNKNOWN
)
1466 dtype
= get_index_dtype(path
, len
);
1467 if (dtype
!= DT_UNKNOWN
)
1469 if (lstat(path
, &st
))
1471 if (S_ISREG(st
.st_mode
))
1473 if (S_ISDIR(st
.st_mode
))
1475 if (S_ISLNK(st
.st_mode
))
1480 static enum path_treatment
treat_one_path(struct dir_struct
*dir
,
1481 struct untracked_cache_dir
*untracked
,
1482 struct strbuf
*path
,
1484 const struct pathspec
*pathspec
,
1485 int dtype
, struct dirent
*de
)
1488 int has_path_in_index
= !!cache_file_exists(path
->buf
, path
->len
, ignore_case
);
1490 if (dtype
== DT_UNKNOWN
)
1491 dtype
= get_dtype(de
, path
->buf
, path
->len
);
1493 /* Always exclude indexed files */
1494 if (dtype
!= DT_DIR
&& has_path_in_index
)
1498 * When we are looking at a directory P in the working tree,
1499 * there are three cases:
1501 * (1) P exists in the index. Everything inside the directory P in
1502 * the working tree needs to go when P is checked out from the
1505 * (2) P does not exist in the index, but there is P/Q in the index.
1506 * We know P will stay a directory when we check out the contents
1507 * of the index, but we do not know yet if there is a directory
1508 * P/Q in the working tree to be killed, so we need to recurse.
1510 * (3) P does not exist in the index, and there is no P/Q in the index
1511 * to require P to be a directory, either. Only in this case, we
1512 * know that everything inside P will not be killed without
1515 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
1516 (dtype
== DT_DIR
) &&
1517 !has_path_in_index
&&
1518 (directory_exists_in_index(path
->buf
, path
->len
) == index_nonexistent
))
1521 exclude
= is_excluded(dir
, path
->buf
, &dtype
);
1524 * Excluded? If we don't explicitly want to show
1525 * ignored files, ignore it
1527 if (exclude
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
1528 return path_excluded
;
1534 strbuf_addch(path
, '/');
1535 return treat_directory(dir
, untracked
, path
->buf
, path
->len
,
1536 baselen
, exclude
, pathspec
);
1539 return exclude
? path_excluded
: path_untracked
;
1543 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
1544 struct untracked_cache_dir
*untracked
,
1545 struct cached_dir
*cdir
,
1546 struct strbuf
*path
,
1548 const struct pathspec
*pathspec
)
1550 strbuf_setlen(path
, baselen
);
1552 strbuf_addstr(path
, cdir
->file
);
1553 return path_untracked
;
1555 strbuf_addstr(path
, cdir
->ucd
->name
);
1556 /* treat_one_path() does this before it calls treat_directory() */
1557 strbuf_complete(path
, '/');
1558 if (cdir
->ucd
->check_only
)
1560 * check_only is set as a result of treat_directory() getting
1561 * to its bottom. Verify again the same set of directories
1562 * with check_only set.
1564 return read_directory_recursive(dir
, path
->buf
, path
->len
,
1565 cdir
->ucd
, 1, pathspec
);
1567 * We get path_recurse in the first run when
1568 * directory_exists_in_index() returns index_nonexistent. We
1569 * are sure that new changes in the index does not impact the
1570 * outcome. Return now.
1572 return path_recurse
;
1575 static enum path_treatment
treat_path(struct dir_struct
*dir
,
1576 struct untracked_cache_dir
*untracked
,
1577 struct cached_dir
*cdir
,
1578 struct strbuf
*path
,
1580 const struct pathspec
*pathspec
)
1583 struct dirent
*de
= cdir
->de
;
1586 return treat_path_fast(dir
, untracked
, cdir
, path
,
1588 if (is_dot_or_dotdot(de
->d_name
) || !strcmp(de
->d_name
, ".git"))
1590 strbuf_setlen(path
, baselen
);
1591 strbuf_addstr(path
, de
->d_name
);
1592 if (simplify_away(path
->buf
, path
->len
, pathspec
))
1596 return treat_one_path(dir
, untracked
, path
, baselen
, pathspec
, dtype
, de
);
1599 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
1603 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
1604 dir
->untracked_alloc
);
1605 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
1608 static int valid_cached_dir(struct dir_struct
*dir
,
1609 struct untracked_cache_dir
*untracked
,
1610 struct strbuf
*path
,
1618 if (stat(path
->len
? path
->buf
: ".", &st
)) {
1619 invalidate_directory(dir
->untracked
, untracked
);
1620 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
1623 if (!untracked
->valid
||
1624 match_stat_data_racy(&the_index
, &untracked
->stat_data
, &st
)) {
1625 if (untracked
->valid
)
1626 invalidate_directory(dir
->untracked
, untracked
);
1627 fill_stat_data(&untracked
->stat_data
, &st
);
1631 if (untracked
->check_only
!= !!check_only
) {
1632 invalidate_directory(dir
->untracked
, untracked
);
1637 * prep_exclude will be called eventually on this directory,
1638 * but it's called much later in last_exclude_matching(). We
1639 * need it now to determine the validity of the cache for this
1640 * path. The next calls will be nearly no-op, the way
1641 * prep_exclude() is designed.
1643 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
1644 strbuf_addch(path
, '/');
1645 prep_exclude(dir
, path
->buf
, path
->len
);
1646 strbuf_setlen(path
, path
->len
- 1);
1648 prep_exclude(dir
, path
->buf
, path
->len
);
1650 /* hopefully prep_exclude() haven't invalidated this entry... */
1651 return untracked
->valid
;
1654 static int open_cached_dir(struct cached_dir
*cdir
,
1655 struct dir_struct
*dir
,
1656 struct untracked_cache_dir
*untracked
,
1657 struct strbuf
*path
,
1660 memset(cdir
, 0, sizeof(*cdir
));
1661 cdir
->untracked
= untracked
;
1662 if (valid_cached_dir(dir
, untracked
, path
, check_only
))
1664 cdir
->fdir
= opendir(path
->len
? path
->buf
: ".");
1666 dir
->untracked
->dir_opened
++;
1672 static int read_cached_dir(struct cached_dir
*cdir
)
1675 cdir
->de
= readdir(cdir
->fdir
);
1680 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
1681 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
1691 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
1692 struct untracked_cache_dir
*d
= cdir
->untracked
;
1693 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
1699 static void close_cached_dir(struct cached_dir
*cdir
)
1702 closedir(cdir
->fdir
);
1704 * We have gone through this directory and found no untracked
1705 * entries. Mark it valid.
1707 if (cdir
->untracked
) {
1708 cdir
->untracked
->valid
= 1;
1709 cdir
->untracked
->recurse
= 1;
1714 * Read a directory tree. We currently ignore anything but
1715 * directories, regular files and symlinks. That's because git
1716 * doesn't handle them at all yet. Maybe that will change some
1719 * Also, we ignore the name ".git" (even if it is not a directory).
1720 * That likely will not change.
1722 * Returns the most significant path_treatment value encountered in the scan.
1724 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
1725 const char *base
, int baselen
,
1726 struct untracked_cache_dir
*untracked
, int check_only
,
1727 const struct pathspec
*pathspec
)
1729 struct cached_dir cdir
;
1730 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
1731 struct strbuf path
= STRBUF_INIT
;
1733 strbuf_add(&path
, base
, baselen
);
1735 if (open_cached_dir(&cdir
, dir
, untracked
, &path
, check_only
))
1739 untracked
->check_only
= !!check_only
;
1741 while (!read_cached_dir(&cdir
)) {
1742 /* check how the file or directory should be treated */
1743 state
= treat_path(dir
, untracked
, &cdir
, &path
,
1746 if (state
> dir_state
)
1749 /* recurse into subdir if instructed by treat_path */
1750 if ((state
== path_recurse
) ||
1751 ((state
== path_untracked
) &&
1752 (dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1753 (get_dtype(cdir
.de
, path
.buf
, path
.len
) == DT_DIR
))) {
1754 struct untracked_cache_dir
*ud
;
1755 ud
= lookup_untracked(dir
->untracked
, untracked
,
1757 path
.len
- baselen
);
1759 read_directory_recursive(dir
, path
.buf
,
1761 check_only
, pathspec
);
1762 if (subdir_state
> dir_state
)
1763 dir_state
= subdir_state
;
1767 /* abort early if maximum state has been reached */
1768 if (dir_state
== path_untracked
) {
1770 add_untracked(untracked
, path
.buf
+ baselen
);
1773 /* skip the dir_add_* part */
1777 /* add the path to the appropriate result list */
1780 if (dir
->flags
& DIR_SHOW_IGNORED
)
1781 dir_add_name(dir
, path
.buf
, path
.len
);
1782 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
1783 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
1784 exclude_matches_pathspec(path
.buf
, path
.len
,
1786 dir_add_ignored(dir
, path
.buf
, path
.len
);
1789 case path_untracked
:
1790 if (dir
->flags
& DIR_SHOW_IGNORED
)
1792 dir_add_name(dir
, path
.buf
, path
.len
);
1794 add_untracked(untracked
, path
.buf
+ baselen
);
1801 close_cached_dir(&cdir
);
1803 strbuf_release(&path
);
1808 int cmp_dir_entry(const void *p1
, const void *p2
)
1810 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
1811 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
1813 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
1816 /* check if *out lexically strictly contains *in */
1817 int check_dir_entry_contains(const struct dir_entry
*out
, const struct dir_entry
*in
)
1819 return (out
->len
< in
->len
) &&
1820 (out
->name
[out
->len
- 1] == '/') &&
1821 !memcmp(out
->name
, in
->name
, out
->len
);
1824 static int treat_leading_path(struct dir_struct
*dir
,
1825 const char *path
, int len
,
1826 const struct pathspec
*pathspec
)
1828 struct strbuf sb
= STRBUF_INIT
;
1829 int baselen
, rc
= 0;
1831 int old_flags
= dir
->flags
;
1833 while (len
&& path
[len
- 1] == '/')
1838 dir
->flags
&= ~DIR_SHOW_OTHER_DIRECTORIES
;
1840 cp
= path
+ baselen
+ !!baselen
;
1841 cp
= memchr(cp
, '/', path
+ len
- cp
);
1845 baselen
= cp
- path
;
1846 strbuf_setlen(&sb
, 0);
1847 strbuf_add(&sb
, path
, baselen
);
1848 if (!is_directory(sb
.buf
))
1850 if (simplify_away(sb
.buf
, sb
.len
, pathspec
))
1852 if (treat_one_path(dir
, NULL
, &sb
, baselen
, pathspec
,
1853 DT_DIR
, NULL
) == path_none
)
1854 break; /* do not recurse into it */
1855 if (len
<= baselen
) {
1857 break; /* finished checking */
1860 strbuf_release(&sb
);
1861 dir
->flags
= old_flags
;
1865 static const char *get_ident_string(void)
1867 static struct strbuf sb
= STRBUF_INIT
;
1872 if (uname(&uts
) < 0)
1873 die_errno(_("failed to get kernel name and information"));
1874 strbuf_addf(&sb
, "Location %s, system %s", get_git_work_tree(),
1879 static int ident_in_untracked(const struct untracked_cache
*uc
)
1882 * Previous git versions may have saved many NUL separated
1883 * strings in the "ident" field, but it is insane to manage
1884 * many locations, so just take care of the first one.
1887 return !strcmp(uc
->ident
.buf
, get_ident_string());
1890 static void set_untracked_ident(struct untracked_cache
*uc
)
1892 strbuf_reset(&uc
->ident
);
1893 strbuf_addstr(&uc
->ident
, get_ident_string());
1896 * This strbuf used to contain a list of NUL separated
1897 * strings, so save NUL too for backward compatibility.
1899 strbuf_addch(&uc
->ident
, 0);
1902 static void new_untracked_cache(struct index_state
*istate
)
1904 struct untracked_cache
*uc
= xcalloc(1, sizeof(*uc
));
1905 strbuf_init(&uc
->ident
, 100);
1906 uc
->exclude_per_dir
= ".gitignore";
1907 /* should be the same flags used by git-status */
1908 uc
->dir_flags
= DIR_SHOW_OTHER_DIRECTORIES
| DIR_HIDE_EMPTY_DIRECTORIES
;
1909 set_untracked_ident(uc
);
1910 istate
->untracked
= uc
;
1911 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1914 void add_untracked_cache(struct index_state
*istate
)
1916 if (!istate
->untracked
) {
1917 new_untracked_cache(istate
);
1919 if (!ident_in_untracked(istate
->untracked
)) {
1920 free_untracked_cache(istate
->untracked
);
1921 new_untracked_cache(istate
);
1926 void remove_untracked_cache(struct index_state
*istate
)
1928 if (istate
->untracked
) {
1929 free_untracked_cache(istate
->untracked
);
1930 istate
->untracked
= NULL
;
1931 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1935 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
1937 const struct pathspec
*pathspec
)
1939 struct untracked_cache_dir
*root
;
1941 if (!dir
->untracked
|| getenv("GIT_DISABLE_UNTRACKED_CACHE"))
1945 * We only support $GIT_DIR/info/exclude and core.excludesfile
1946 * as the global ignore rule files. Any other additions
1947 * (e.g. from command line) invalidate the cache. This
1948 * condition also catches running setup_standard_excludes()
1949 * before setting dir->untracked!
1951 if (dir
->unmanaged_exclude_files
)
1955 * Optimize for the main use case only: whole-tree git
1956 * status. More work involved in treat_leading_path() if we
1957 * use cache on just a subset of the worktree. pathspec
1958 * support could make the matter even worse.
1960 if (base_len
|| (pathspec
&& pathspec
->nr
))
1963 /* Different set of flags may produce different results */
1964 if (dir
->flags
!= dir
->untracked
->dir_flags
||
1966 * See treat_directory(), case index_nonexistent. Without
1967 * this flag, we may need to also cache .git file content
1968 * for the resolve_gitlink_ref() call, which we don't.
1970 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
1971 /* We don't support collecting ignore files */
1972 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
1973 DIR_COLLECT_IGNORED
)))
1977 * If we use .gitignore in the cache and now you change it to
1978 * .gitexclude, everything will go wrong.
1980 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
1981 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
1985 * EXC_CMDL is not considered in the cache. If people set it,
1988 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
1991 if (!ident_in_untracked(dir
->untracked
)) {
1992 warning(_("Untracked cache is disabled on this system or location."));
1996 if (!dir
->untracked
->root
) {
1997 const int len
= sizeof(*dir
->untracked
->root
);
1998 dir
->untracked
->root
= xmalloc(len
);
1999 memset(dir
->untracked
->root
, 0, len
);
2002 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2003 root
= dir
->untracked
->root
;
2004 if (hashcmp(dir
->ss_info_exclude
.sha1
,
2005 dir
->untracked
->ss_info_exclude
.sha1
)) {
2006 invalidate_gitignore(dir
->untracked
, root
);
2007 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2009 if (hashcmp(dir
->ss_excludes_file
.sha1
,
2010 dir
->untracked
->ss_excludes_file
.sha1
)) {
2011 invalidate_gitignore(dir
->untracked
, root
);
2012 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2015 /* Make sure this directory is not dropped out at saving phase */
2020 int read_directory(struct dir_struct
*dir
, const char *path
,
2021 int len
, const struct pathspec
*pathspec
)
2023 struct untracked_cache_dir
*untracked
;
2025 if (has_symlink_leading_path(path
, len
))
2028 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2031 * make sure untracked cache code path is disabled,
2032 * e.g. prep_exclude()
2034 dir
->untracked
= NULL
;
2035 if (!len
|| treat_leading_path(dir
, path
, len
, pathspec
))
2036 read_directory_recursive(dir
, path
, len
, untracked
, 0, pathspec
);
2037 QSORT(dir
->entries
, dir
->nr
, cmp_dir_entry
);
2038 QSORT(dir
->ignored
, dir
->ignored_nr
, cmp_dir_entry
);
2041 * If DIR_SHOW_IGNORED_TOO is set, read_directory_recursive() will
2042 * also pick up untracked contents of untracked dirs; by default
2043 * we discard these, but given DIR_KEEP_UNTRACKED_CONTENTS we do not.
2045 if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
2046 !(dir
->flags
& DIR_KEEP_UNTRACKED_CONTENTS
)) {
2049 /* remove from dir->entries untracked contents of untracked dirs */
2050 for (i
= j
= 0; j
< dir
->nr
; j
++) {
2052 check_dir_entry_contains(dir
->entries
[i
- 1], dir
->entries
[j
])) {
2053 free(dir
->entries
[j
]);
2054 dir
->entries
[j
] = NULL
;
2056 dir
->entries
[i
++] = dir
->entries
[j
];
2063 if (dir
->untracked
) {
2064 static struct trace_key trace_untracked_stats
= TRACE_KEY_INIT(UNTRACKED_STATS
);
2065 trace_printf_key(&trace_untracked_stats
,
2066 "node creation: %u\n"
2067 "gitignore invalidation: %u\n"
2068 "directory invalidation: %u\n"
2070 dir
->untracked
->dir_created
,
2071 dir
->untracked
->gitignore_invalidated
,
2072 dir
->untracked
->dir_invalidated
,
2073 dir
->untracked
->dir_opened
);
2074 if (dir
->untracked
== the_index
.untracked
&&
2075 (dir
->untracked
->dir_opened
||
2076 dir
->untracked
->gitignore_invalidated
||
2077 dir
->untracked
->dir_invalidated
))
2078 the_index
.cache_changed
|= UNTRACKED_CHANGED
;
2079 if (dir
->untracked
!= the_index
.untracked
) {
2080 free(dir
->untracked
);
2081 dir
->untracked
= NULL
;
2087 int file_exists(const char *f
)
2090 return lstat(f
, &sb
) == 0;
2093 static int cmp_icase(char a
, char b
)
2098 return toupper(a
) - toupper(b
);
2103 * Given two normalized paths (a trailing slash is ok), if subdir is
2104 * outside dir, return -1. Otherwise return the offset in subdir that
2105 * can be used as relative path to dir.
2107 int dir_inside_of(const char *subdir
, const char *dir
)
2111 assert(dir
&& subdir
&& *dir
&& *subdir
);
2113 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2119 /* hel[p]/me vs hel[l]/yeah */
2120 if (*dir
&& *subdir
)
2124 return !*dir
? offset
: -1; /* same dir */
2126 /* foo/[b]ar vs foo/[] */
2127 if (is_dir_sep(dir
[-1]))
2128 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2130 /* foo[/]bar vs foo[] */
2131 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2134 int is_inside_dir(const char *dir
)
2143 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2148 int is_empty_dir(const char *path
)
2150 DIR *dir
= opendir(path
);
2157 while ((e
= readdir(dir
)) != NULL
)
2158 if (!is_dot_or_dotdot(e
->d_name
)) {
2167 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2171 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2172 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2173 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2174 unsigned char submodule_head
[20];
2176 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2177 !resolve_gitlink_ref(path
->buf
, "HEAD", submodule_head
)) {
2178 /* Do not descend and nuke a nested git work tree. */
2184 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2185 dir
= opendir(path
->buf
);
2187 if (errno
== ENOENT
)
2188 return keep_toplevel
? -1 : 0;
2189 else if (errno
== EACCES
&& !keep_toplevel
)
2191 * An empty dir could be removable even if it
2194 return rmdir(path
->buf
);
2198 strbuf_complete(path
, '/');
2201 while ((e
= readdir(dir
)) != NULL
) {
2203 if (is_dot_or_dotdot(e
->d_name
))
2206 strbuf_setlen(path
, len
);
2207 strbuf_addstr(path
, e
->d_name
);
2208 if (lstat(path
->buf
, &st
)) {
2209 if (errno
== ENOENT
)
2211 * file disappeared, which is what we
2216 } else if (S_ISDIR(st
.st_mode
)) {
2217 if (!remove_dir_recurse(path
, flag
, &kept_down
))
2218 continue; /* happy */
2219 } else if (!only_empty
&&
2220 (!unlink(path
->buf
) || errno
== ENOENT
)) {
2221 continue; /* happy, too */
2224 /* path too long, stat fails, or non-directory still exists */
2230 strbuf_setlen(path
, original_len
);
2231 if (!ret
&& !keep_toplevel
&& !kept_down
)
2232 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
2235 * report the uplevel that it is not an error that we
2236 * did not rmdir() our directory.
2242 int remove_dir_recursively(struct strbuf
*path
, int flag
)
2244 return remove_dir_recurse(path
, flag
, NULL
);
2247 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
2249 void setup_standard_excludes(struct dir_struct
*dir
)
2251 dir
->exclude_per_dir
= ".gitignore";
2253 /* core.excludefile defaulting to $XDG_HOME/git/ignore */
2255 excludes_file
= xdg_config_home("ignore");
2256 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
2257 add_excludes_from_file_1(dir
, excludes_file
,
2258 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
2260 /* per repository user preference */
2261 if (startup_info
->have_repository
) {
2262 const char *path
= git_path_info_exclude();
2263 if (!access_or_warn(path
, R_OK
, 0))
2264 add_excludes_from_file_1(dir
, path
,
2265 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
2269 int remove_path(const char *name
)
2273 if (unlink(name
) && errno
!= ENOENT
&& errno
!= ENOTDIR
)
2276 slash
= strrchr(name
, '/');
2278 char *dirs
= xstrdup(name
);
2279 slash
= dirs
+ (slash
- name
);
2282 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
2289 * Frees memory within dir which was allocated for exclude lists and
2290 * the exclude_stack. Does not free dir itself.
2292 void clear_directory(struct dir_struct
*dir
)
2295 struct exclude_list_group
*group
;
2296 struct exclude_list
*el
;
2297 struct exclude_stack
*stk
;
2299 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
2300 group
= &dir
->exclude_list_group
[i
];
2301 for (j
= 0; j
< group
->nr
; j
++) {
2304 free((char *)el
->src
);
2305 clear_exclude_list(el
);
2310 stk
= dir
->exclude_stack
;
2312 struct exclude_stack
*prev
= stk
->prev
;
2316 strbuf_release(&dir
->basebuf
);
2319 struct ondisk_untracked_cache
{
2320 struct stat_data info_exclude_stat
;
2321 struct stat_data excludes_file_stat
;
2323 unsigned char info_exclude_sha1
[20];
2324 unsigned char excludes_file_sha1
[20];
2325 char exclude_per_dir
[FLEX_ARRAY
];
2328 #define ouc_size(len) (offsetof(struct ondisk_untracked_cache, exclude_per_dir) + len + 1)
2331 int index
; /* number of written untracked_cache_dir */
2332 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
2333 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
2334 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
2336 struct strbuf sb_stat
;
2337 struct strbuf sb_sha1
;
2340 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
2342 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
2343 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
2344 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
2345 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
2346 to
->sd_dev
= htonl(from
->sd_dev
);
2347 to
->sd_ino
= htonl(from
->sd_ino
);
2348 to
->sd_uid
= htonl(from
->sd_uid
);
2349 to
->sd_gid
= htonl(from
->sd_gid
);
2350 to
->sd_size
= htonl(from
->sd_size
);
2353 static void write_one_dir(struct untracked_cache_dir
*untracked
,
2354 struct write_data
*wd
)
2356 struct stat_data stat_data
;
2357 struct strbuf
*out
= &wd
->out
;
2358 unsigned char intbuf
[16];
2359 unsigned int intlen
, value
;
2360 int i
= wd
->index
++;
2363 * untracked_nr should be reset whenever valid is clear, but
2366 if (!untracked
->valid
) {
2367 untracked
->untracked_nr
= 0;
2368 untracked
->check_only
= 0;
2371 if (untracked
->check_only
)
2372 ewah_set(wd
->check_only
, i
);
2373 if (untracked
->valid
) {
2374 ewah_set(wd
->valid
, i
);
2375 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
2376 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
2378 if (!is_null_sha1(untracked
->exclude_sha1
)) {
2379 ewah_set(wd
->sha1_valid
, i
);
2380 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_sha1
, 20);
2383 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
2384 strbuf_add(out
, intbuf
, intlen
);
2386 /* skip non-recurse directories */
2387 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
2388 if (untracked
->dirs
[i
]->recurse
)
2390 intlen
= encode_varint(value
, intbuf
);
2391 strbuf_add(out
, intbuf
, intlen
);
2393 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
2395 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
2396 strbuf_add(out
, untracked
->untracked
[i
],
2397 strlen(untracked
->untracked
[i
]) + 1);
2399 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
2400 if (untracked
->dirs
[i
]->recurse
)
2401 write_one_dir(untracked
->dirs
[i
], wd
);
2404 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
2406 struct ondisk_untracked_cache
*ouc
;
2407 struct write_data wd
;
2408 unsigned char varbuf
[16];
2410 size_t len
= strlen(untracked
->exclude_per_dir
);
2412 FLEX_ALLOC_MEM(ouc
, exclude_per_dir
, untracked
->exclude_per_dir
, len
);
2413 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
2414 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
2415 hashcpy(ouc
->info_exclude_sha1
, untracked
->ss_info_exclude
.sha1
);
2416 hashcpy(ouc
->excludes_file_sha1
, untracked
->ss_excludes_file
.sha1
);
2417 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
2419 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
2420 strbuf_add(out
, varbuf
, varint_len
);
2421 strbuf_addbuf(out
, &untracked
->ident
);
2423 strbuf_add(out
, ouc
, ouc_size(len
));
2427 if (!untracked
->root
) {
2428 varint_len
= encode_varint(0, varbuf
);
2429 strbuf_add(out
, varbuf
, varint_len
);
2434 wd
.check_only
= ewah_new();
2435 wd
.valid
= ewah_new();
2436 wd
.sha1_valid
= ewah_new();
2437 strbuf_init(&wd
.out
, 1024);
2438 strbuf_init(&wd
.sb_stat
, 1024);
2439 strbuf_init(&wd
.sb_sha1
, 1024);
2440 write_one_dir(untracked
->root
, &wd
);
2442 varint_len
= encode_varint(wd
.index
, varbuf
);
2443 strbuf_add(out
, varbuf
, varint_len
);
2444 strbuf_addbuf(out
, &wd
.out
);
2445 ewah_serialize_strbuf(wd
.valid
, out
);
2446 ewah_serialize_strbuf(wd
.check_only
, out
);
2447 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
2448 strbuf_addbuf(out
, &wd
.sb_stat
);
2449 strbuf_addbuf(out
, &wd
.sb_sha1
);
2450 strbuf_addch(out
, '\0'); /* safe guard for string lists */
2452 ewah_free(wd
.valid
);
2453 ewah_free(wd
.check_only
);
2454 ewah_free(wd
.sha1_valid
);
2455 strbuf_release(&wd
.out
);
2456 strbuf_release(&wd
.sb_stat
);
2457 strbuf_release(&wd
.sb_sha1
);
2460 static void free_untracked(struct untracked_cache_dir
*ucd
)
2465 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
2466 free_untracked(ucd
->dirs
[i
]);
2467 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
2468 free(ucd
->untracked
[i
]);
2469 free(ucd
->untracked
);
2474 void free_untracked_cache(struct untracked_cache
*uc
)
2477 free_untracked(uc
->root
);
2483 struct untracked_cache_dir
**ucd
;
2484 struct ewah_bitmap
*check_only
;
2485 struct ewah_bitmap
*valid
;
2486 struct ewah_bitmap
*sha1_valid
;
2487 const unsigned char *data
;
2488 const unsigned char *end
;
2491 static void stat_data_from_disk(struct stat_data
*to
, const struct stat_data
*from
)
2493 to
->sd_ctime
.sec
= get_be32(&from
->sd_ctime
.sec
);
2494 to
->sd_ctime
.nsec
= get_be32(&from
->sd_ctime
.nsec
);
2495 to
->sd_mtime
.sec
= get_be32(&from
->sd_mtime
.sec
);
2496 to
->sd_mtime
.nsec
= get_be32(&from
->sd_mtime
.nsec
);
2497 to
->sd_dev
= get_be32(&from
->sd_dev
);
2498 to
->sd_ino
= get_be32(&from
->sd_ino
);
2499 to
->sd_uid
= get_be32(&from
->sd_uid
);
2500 to
->sd_gid
= get_be32(&from
->sd_gid
);
2501 to
->sd_size
= get_be32(&from
->sd_size
);
2504 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
2505 struct read_data
*rd
)
2507 struct untracked_cache_dir ud
, *untracked
;
2508 const unsigned char *next
, *data
= rd
->data
, *end
= rd
->end
;
2512 memset(&ud
, 0, sizeof(ud
));
2515 value
= decode_varint(&next
);
2519 ud
.untracked_alloc
= value
;
2520 ud
.untracked_nr
= value
;
2521 if (ud
.untracked_nr
)
2522 ALLOC_ARRAY(ud
.untracked
, ud
.untracked_nr
);
2526 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&next
);
2529 ALLOC_ARRAY(ud
.dirs
, ud
.dirs_nr
);
2532 len
= strlen((const char *)data
);
2533 next
= data
+ len
+ 1;
2536 *untracked_
= untracked
= xmalloc(st_add(sizeof(*untracked
), len
));
2537 memcpy(untracked
, &ud
, sizeof(ud
));
2538 memcpy(untracked
->name
, data
, len
+ 1);
2541 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
2542 len
= strlen((const char *)data
);
2543 next
= data
+ len
+ 1;
2546 untracked
->untracked
[i
] = xstrdup((const char*)data
);
2550 rd
->ucd
[rd
->index
++] = untracked
;
2553 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
2554 len
= read_one_dir(untracked
->dirs
+ i
, rd
);
2561 static void set_check_only(size_t pos
, void *cb
)
2563 struct read_data
*rd
= cb
;
2564 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2568 static void read_stat(size_t pos
, void *cb
)
2570 struct read_data
*rd
= cb
;
2571 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2572 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
2573 rd
->data
= rd
->end
+ 1;
2576 stat_data_from_disk(&ud
->stat_data
, (struct stat_data
*)rd
->data
);
2577 rd
->data
+= sizeof(struct stat_data
);
2581 static void read_sha1(size_t pos
, void *cb
)
2583 struct read_data
*rd
= cb
;
2584 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2585 if (rd
->data
+ 20 > rd
->end
) {
2586 rd
->data
= rd
->end
+ 1;
2589 hashcpy(ud
->exclude_sha1
, rd
->data
);
2593 static void load_sha1_stat(struct sha1_stat
*sha1_stat
,
2594 const struct stat_data
*stat
,
2595 const unsigned char *sha1
)
2597 stat_data_from_disk(&sha1_stat
->stat
, stat
);
2598 hashcpy(sha1_stat
->sha1
, sha1
);
2599 sha1_stat
->valid
= 1;
2602 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
2604 const struct ondisk_untracked_cache
*ouc
;
2605 struct untracked_cache
*uc
;
2606 struct read_data rd
;
2607 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
2611 if (sz
<= 1 || end
[-1] != '\0')
2615 ident_len
= decode_varint(&next
);
2616 if (next
+ ident_len
> end
)
2618 ident
= (const char *)next
;
2621 ouc
= (const struct ondisk_untracked_cache
*)next
;
2622 if (next
+ ouc_size(0) > end
)
2625 uc
= xcalloc(1, sizeof(*uc
));
2626 strbuf_init(&uc
->ident
, ident_len
);
2627 strbuf_add(&uc
->ident
, ident
, ident_len
);
2628 load_sha1_stat(&uc
->ss_info_exclude
, &ouc
->info_exclude_stat
,
2629 ouc
->info_exclude_sha1
);
2630 load_sha1_stat(&uc
->ss_excludes_file
, &ouc
->excludes_file_stat
,
2631 ouc
->excludes_file_sha1
);
2632 uc
->dir_flags
= get_be32(&ouc
->dir_flags
);
2633 uc
->exclude_per_dir
= xstrdup(ouc
->exclude_per_dir
);
2634 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
2635 next
+= ouc_size(strlen(ouc
->exclude_per_dir
));
2639 len
= decode_varint(&next
);
2640 if (next
> end
|| len
== 0)
2643 rd
.valid
= ewah_new();
2644 rd
.check_only
= ewah_new();
2645 rd
.sha1_valid
= ewah_new();
2649 ALLOC_ARRAY(rd
.ucd
, len
);
2651 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
2655 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
2660 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
2665 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
2669 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
2670 rd
.data
= next
+ len
;
2671 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
2672 ewah_each_bit(rd
.sha1_valid
, read_sha1
, &rd
);
2677 ewah_free(rd
.valid
);
2678 ewah_free(rd
.check_only
);
2679 ewah_free(rd
.sha1_valid
);
2682 free_untracked_cache(uc
);
2688 static void invalidate_one_directory(struct untracked_cache
*uc
,
2689 struct untracked_cache_dir
*ucd
)
2691 uc
->dir_invalidated
++;
2693 ucd
->untracked_nr
= 0;
2697 * Normally when an entry is added or removed from a directory,
2698 * invalidating that directory is enough. No need to touch its
2699 * ancestors. When a directory is shown as "foo/bar/" in git-status
2700 * however, deleting or adding an entry may have cascading effect.
2702 * Say the "foo/bar/file" has become untracked, we need to tell the
2703 * untracked_cache_dir of "foo" that "bar/" is not an untracked
2704 * directory any more (because "bar" is managed by foo as an untracked
2707 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
2708 * was the last untracked entry in the entire "foo", we should show
2709 * "foo/" instead. Which means we have to invalidate past "bar" up to
2712 * This function traverses all directories from root to leaf. If there
2713 * is a chance of one of the above cases happening, we invalidate back
2714 * to root. Otherwise we just invalidate the leaf. There may be a more
2715 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
2716 * detect these cases and avoid unnecessary invalidation, for example,
2717 * checking for the untracked entry named "bar/" in "foo", but for now
2718 * stick to something safe and simple.
2720 static int invalidate_one_component(struct untracked_cache
*uc
,
2721 struct untracked_cache_dir
*dir
,
2722 const char *path
, int len
)
2724 const char *rest
= strchr(path
, '/');
2727 int component_len
= rest
- path
;
2728 struct untracked_cache_dir
*d
=
2729 lookup_untracked(uc
, dir
, path
, component_len
);
2731 invalidate_one_component(uc
, d
, rest
+ 1,
2732 len
- (component_len
+ 1));
2734 invalidate_one_directory(uc
, dir
);
2738 invalidate_one_directory(uc
, dir
);
2739 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
2742 void untracked_cache_invalidate_path(struct index_state
*istate
,
2745 if (!istate
->untracked
|| !istate
->untracked
->root
)
2747 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
2748 path
, strlen(path
));
2751 void untracked_cache_remove_from_index(struct index_state
*istate
,
2754 untracked_cache_invalidate_path(istate
, path
);
2757 void untracked_cache_add_to_index(struct index_state
*istate
,
2760 untracked_cache_invalidate_path(istate
, path
);
2763 /* Update gitfile and core.worktree setting to connect work tree and git dir */
2764 void connect_work_tree_and_git_dir(const char *work_tree_
, const char *git_dir_
)
2766 struct strbuf file_name
= STRBUF_INIT
;
2767 struct strbuf rel_path
= STRBUF_INIT
;
2768 char *git_dir
= real_pathdup(git_dir_
, 1);
2769 char *work_tree
= real_pathdup(work_tree_
, 1);
2771 /* Update gitfile */
2772 strbuf_addf(&file_name
, "%s/.git", work_tree
);
2773 write_file(file_name
.buf
, "gitdir: %s",
2774 relative_path(git_dir
, work_tree
, &rel_path
));
2776 /* Update core.worktree setting */
2777 strbuf_reset(&file_name
);
2778 strbuf_addf(&file_name
, "%s/config", git_dir
);
2779 git_config_set_in_file(file_name
.buf
, "core.worktree",
2780 relative_path(work_tree
, git_dir
, &rel_path
));
2782 strbuf_release(&file_name
);
2783 strbuf_release(&rel_path
);
2789 * Migrate the git directory of the given path from old_git_dir to new_git_dir.
2791 void relocate_gitdir(const char *path
, const char *old_git_dir
, const char *new_git_dir
)
2793 if (rename(old_git_dir
, new_git_dir
) < 0)
2794 die_errno(_("could not migrate git directory from '%s' to '%s'"),
2795 old_git_dir
, new_git_dir
);
2797 connect_work_tree_and_git_dir(path
, new_git_dir
);