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
15 #include "wildmatch.h"
19 #include "ewah/ewok.h"
22 * Tells read_directory_recursive how a file or directory should be treated.
23 * Values are ordered by significance, e.g. if a directory contains both
24 * excluded and untracked files, it is listed as untracked because
25 * path_untracked > path_excluded.
35 * Support data structure for our opendir/readdir/closedir wrappers
39 struct untracked_cache_dir
*untracked
;
45 struct untracked_cache_dir
*ucd
;
48 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
49 const char *path
, int len
, struct untracked_cache_dir
*untracked
,
50 int check_only
, const struct pathspec
*pathspec
);
51 static int get_dtype(struct dirent
*de
, const char *path
, int len
);
53 int fspathcmp(const char *a
, const char *b
)
55 return ignore_case
? strcasecmp(a
, b
) : strcmp(a
, b
);
58 int fspathncmp(const char *a
, const char *b
, size_t count
)
60 return ignore_case
? strncasecmp(a
, b
, count
) : strncmp(a
, b
, count
);
63 int git_fnmatch(const struct pathspec_item
*item
,
64 const char *pattern
, const char *string
,
68 if (ps_strncmp(item
, pattern
, string
, prefix
))
73 if (item
->flags
& PATHSPEC_ONESTAR
) {
74 int pattern_len
= strlen(++pattern
);
75 int string_len
= strlen(string
);
76 return string_len
< pattern_len
||
77 ps_strcmp(item
, pattern
,
78 string
+ string_len
- pattern_len
);
80 if (item
->magic
& PATHSPEC_GLOB
)
81 return wildmatch(pattern
, string
,
83 (item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0),
86 /* wildmatch has not learned no FNM_PATHNAME mode yet */
87 return wildmatch(pattern
, string
,
88 item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0,
92 static int fnmatch_icase_mem(const char *pattern
, int patternlen
,
93 const char *string
, int stringlen
,
97 struct strbuf pat_buf
= STRBUF_INIT
;
98 struct strbuf str_buf
= STRBUF_INIT
;
99 const char *use_pat
= pattern
;
100 const char *use_str
= string
;
102 if (pattern
[patternlen
]) {
103 strbuf_add(&pat_buf
, pattern
, patternlen
);
104 use_pat
= pat_buf
.buf
;
106 if (string
[stringlen
]) {
107 strbuf_add(&str_buf
, string
, stringlen
);
108 use_str
= str_buf
.buf
;
112 flags
|= WM_CASEFOLD
;
113 match_status
= wildmatch(use_pat
, use_str
, flags
, NULL
);
115 strbuf_release(&pat_buf
);
116 strbuf_release(&str_buf
);
121 static size_t common_prefix_len(const struct pathspec
*pathspec
)
127 * ":(icase)path" is treated as a pathspec full of
128 * wildcard. In other words, only prefix is considered common
129 * prefix. If the pathspec is abc/foo abc/bar, running in
130 * subdir xyz, the common prefix is still xyz, not xuz/abc as
133 GUARD_PATHSPEC(pathspec
,
142 for (n
= 0; n
< pathspec
->nr
; n
++) {
143 size_t i
= 0, len
= 0, item_len
;
144 if (pathspec
->items
[n
].magic
& PATHSPEC_EXCLUDE
)
146 if (pathspec
->items
[n
].magic
& PATHSPEC_ICASE
)
147 item_len
= pathspec
->items
[n
].prefix
;
149 item_len
= pathspec
->items
[n
].nowildcard_len
;
150 while (i
< item_len
&& (n
== 0 || i
< max
)) {
151 char c
= pathspec
->items
[n
].match
[i
];
152 if (c
!= pathspec
->items
[0].match
[i
])
158 if (n
== 0 || len
< max
) {
168 * Returns a copy of the longest leading path common among all
171 char *common_prefix(const struct pathspec
*pathspec
)
173 unsigned long len
= common_prefix_len(pathspec
);
175 return len
? xmemdupz(pathspec
->items
[0].match
, len
) : NULL
;
178 int fill_directory(struct dir_struct
*dir
, const struct pathspec
*pathspec
)
184 * Calculate common prefix for the pathspec, and
185 * use that to optimize the directory walk
187 prefix_len
= common_prefix_len(pathspec
);
188 prefix
= prefix_len
? pathspec
->items
[0].match
: "";
190 /* Read the directory and prune it */
191 read_directory(dir
, prefix
, prefix_len
, pathspec
);
196 int within_depth(const char *name
, int namelen
,
197 int depth
, int max_depth
)
199 const char *cp
= name
, *cpe
= name
+ namelen
;
205 if (depth
> max_depth
)
211 #define DO_MATCH_EXCLUDE (1<<0)
212 #define DO_MATCH_DIRECTORY (1<<1)
213 #define DO_MATCH_SUBMODULE (1<<2)
215 static int match_attrs(const char *name
, int namelen
,
216 const struct pathspec_item
*item
)
220 git_check_attr(name
, item
->attr_check
);
221 for (i
= 0; i
< item
->attr_match_nr
; i
++) {
224 enum attr_match_mode match_mode
;
226 value
= item
->attr_check
->items
[i
].value
;
227 match_mode
= item
->attr_match
[i
].match_mode
;
229 if (ATTR_TRUE(value
))
230 matched
= (match_mode
== MATCH_SET
);
231 else if (ATTR_FALSE(value
))
232 matched
= (match_mode
== MATCH_UNSET
);
233 else if (ATTR_UNSET(value
))
234 matched
= (match_mode
== MATCH_UNSPECIFIED
);
236 matched
= (match_mode
== MATCH_VALUE
&&
237 !strcmp(item
->attr_match
[i
].value
, value
));
246 * Does 'match' match the given name?
247 * A match is found if
249 * (1) the 'match' string is leading directory of 'name', or
250 * (2) the 'match' string is a wildcard and matches 'name', or
251 * (3) the 'match' string is exactly the same as 'name'.
253 * and the return value tells which case it was.
255 * It returns 0 when there is no match.
257 static int match_pathspec_item(const struct pathspec_item
*item
, int prefix
,
258 const char *name
, int namelen
, unsigned flags
)
260 /* name/namelen has prefix cut off by caller */
261 const char *match
= item
->match
+ prefix
;
262 int matchlen
= item
->len
- prefix
;
265 * The normal call pattern is:
266 * 1. prefix = common_prefix_len(ps);
267 * 2. prune something, or fill_directory
268 * 3. match_pathspec()
270 * 'prefix' at #1 may be shorter than the command's prefix and
271 * it's ok for #2 to match extra files. Those extras will be
274 * Suppose the pathspec is 'foo' and '../bar' running from
275 * subdir 'xyz'. The common prefix at #1 will be empty, thanks
276 * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The
277 * user does not want XYZ/foo, only the "foo" part should be
278 * case-insensitive. We need to filter out XYZ/foo here. In
279 * other words, we do not trust the caller on comparing the
280 * prefix part when :(icase) is involved. We do exact
281 * comparison ourselves.
283 * Normally the caller (common_prefix_len() in fact) does
284 * _exact_ matching on name[-prefix+1..-1] and we do not need
285 * to check that part. Be defensive and check it anyway, in
286 * case common_prefix_len is changed, or a new caller is
287 * introduced that does not use common_prefix_len.
289 * If the penalty turns out too high when prefix is really
290 * long, maybe change it to
291 * strncmp(match, name, item->prefix - prefix)
293 if (item
->prefix
&& (item
->magic
& PATHSPEC_ICASE
) &&
294 strncmp(item
->match
, name
- prefix
, item
->prefix
))
297 if (item
->attr_match_nr
&& !match_attrs(name
, namelen
, item
))
300 /* If the match was just the prefix, we matched */
302 return MATCHED_RECURSIVELY
;
304 if (matchlen
<= namelen
&& !ps_strncmp(item
, match
, name
, matchlen
)) {
305 if (matchlen
== namelen
)
306 return MATCHED_EXACTLY
;
308 if (match
[matchlen
-1] == '/' || name
[matchlen
] == '/')
309 return MATCHED_RECURSIVELY
;
310 } else if ((flags
& DO_MATCH_DIRECTORY
) &&
311 match
[matchlen
- 1] == '/' &&
312 namelen
== matchlen
- 1 &&
313 !ps_strncmp(item
, match
, name
, namelen
))
314 return MATCHED_EXACTLY
;
316 if (item
->nowildcard_len
< item
->len
&&
317 !git_fnmatch(item
, match
, name
,
318 item
->nowildcard_len
- prefix
))
319 return MATCHED_FNMATCH
;
321 /* Perform checks to see if "name" is a super set of the pathspec */
322 if (flags
& DO_MATCH_SUBMODULE
) {
323 /* name is a literal prefix of the pathspec */
324 if ((namelen
< matchlen
) &&
325 (match
[namelen
] == '/') &&
326 !ps_strncmp(item
, match
, name
, namelen
))
327 return MATCHED_RECURSIVELY
;
329 /* name" doesn't match up to the first wild character */
330 if (item
->nowildcard_len
< item
->len
&&
331 ps_strncmp(item
, match
, name
,
332 item
->nowildcard_len
- prefix
))
336 * Here is where we would perform a wildmatch to check if
337 * "name" can be matched as a directory (or a prefix) against
338 * the pathspec. Since wildmatch doesn't have this capability
339 * at the present we have to punt and say that it is a match,
340 * potentially returning a false positive
341 * The submodules themselves will be able to perform more
342 * accurate matching to determine if the pathspec matches.
344 return MATCHED_RECURSIVELY
;
351 * Given a name and a list of pathspecs, returns the nature of the
352 * closest (i.e. most specific) match of the name to any of the
355 * The caller typically calls this multiple times with the same
356 * pathspec and seen[] array but with different name/namelen
357 * (e.g. entries from the index) and is interested in seeing if and
358 * how each pathspec matches all the names it calls this function
359 * with. A mark is left in the seen[] array for each pathspec element
360 * indicating the closest type of match that element achieved, so if
361 * seen[n] remains zero after multiple invocations, that means the nth
362 * pathspec did not match any names, which could indicate that the
363 * user mistyped the nth pathspec.
365 static int do_match_pathspec(const struct pathspec
*ps
,
366 const char *name
, int namelen
,
367 int prefix
, char *seen
,
370 int i
, retval
= 0, exclude
= flags
& DO_MATCH_EXCLUDE
;
382 if (!ps
->recursive
||
383 !(ps
->magic
& PATHSPEC_MAXDEPTH
) ||
385 return MATCHED_RECURSIVELY
;
387 if (within_depth(name
, namelen
, 0, ps
->max_depth
))
388 return MATCHED_EXACTLY
;
396 for (i
= ps
->nr
- 1; i
>= 0; i
--) {
399 if ((!exclude
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
) ||
400 ( exclude
&& !(ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)))
403 if (seen
&& seen
[i
] == MATCHED_EXACTLY
)
406 * Make exclude patterns optional and never report
407 * "pathspec ':(exclude)foo' matches no files"
409 if (seen
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)
410 seen
[i
] = MATCHED_FNMATCH
;
411 how
= match_pathspec_item(ps
->items
+i
, prefix
, name
,
414 (ps
->magic
& PATHSPEC_MAXDEPTH
) &&
415 ps
->max_depth
!= -1 &&
416 how
&& how
!= MATCHED_FNMATCH
) {
417 int len
= ps
->items
[i
].len
;
418 if (name
[len
] == '/')
420 if (within_depth(name
+len
, namelen
-len
, 0, ps
->max_depth
))
421 how
= MATCHED_EXACTLY
;
428 if (seen
&& seen
[i
] < how
)
435 int match_pathspec(const struct pathspec
*ps
,
436 const char *name
, int namelen
,
437 int prefix
, char *seen
, int is_dir
)
439 int positive
, negative
;
440 unsigned flags
= is_dir
? DO_MATCH_DIRECTORY
: 0;
441 positive
= do_match_pathspec(ps
, name
, namelen
,
442 prefix
, seen
, flags
);
443 if (!(ps
->magic
& PATHSPEC_EXCLUDE
) || !positive
)
445 negative
= do_match_pathspec(ps
, name
, namelen
,
447 flags
| DO_MATCH_EXCLUDE
);
448 return negative
? 0 : positive
;
452 * Check if a submodule is a superset of the pathspec
454 int submodule_path_match(const struct pathspec
*ps
,
455 const char *submodule_name
,
458 int matched
= do_match_pathspec(ps
, submodule_name
,
459 strlen(submodule_name
),
466 int report_path_error(const char *ps_matched
,
467 const struct pathspec
*pathspec
,
471 * Make sure all pathspec matched; otherwise it is an error.
474 for (num
= 0; num
< pathspec
->nr
; num
++) {
475 int other
, found_dup
;
480 * The caller might have fed identical pathspec
481 * twice. Do not barf on such a mistake.
482 * FIXME: parse_pathspec should have eliminated
483 * duplicate pathspec.
485 for (found_dup
= other
= 0;
486 !found_dup
&& other
< pathspec
->nr
;
488 if (other
== num
|| !ps_matched
[other
])
490 if (!strcmp(pathspec
->items
[other
].original
,
491 pathspec
->items
[num
].original
))
493 * Ok, we have a match already.
500 error("pathspec '%s' did not match any file(s) known to git.",
501 pathspec
->items
[num
].original
);
508 * Return the length of the "simple" part of a path match limiter.
510 int simple_length(const char *match
)
515 unsigned char c
= *match
++;
517 if (c
== '\0' || is_glob_special(c
))
522 int no_wildcard(const char *string
)
524 return string
[simple_length(string
)] == '\0';
527 void parse_exclude_pattern(const char **pattern
,
532 const char *p
= *pattern
;
537 *flags
|= EXC_FLAG_NEGATIVE
;
541 if (len
&& p
[len
- 1] == '/') {
543 *flags
|= EXC_FLAG_MUSTBEDIR
;
545 for (i
= 0; i
< len
; i
++) {
550 *flags
|= EXC_FLAG_NODIR
;
551 *nowildcardlen
= simple_length(p
);
553 * we should have excluded the trailing slash from 'p' too,
554 * but that's one more allocation. Instead just make sure
555 * nowildcardlen does not exceed real patternlen
557 if (*nowildcardlen
> len
)
558 *nowildcardlen
= len
;
559 if (*p
== '*' && no_wildcard(p
+ 1))
560 *flags
|= EXC_FLAG_ENDSWITH
;
565 void add_exclude(const char *string
, const char *base
,
566 int baselen
, struct exclude_list
*el
, int srcpos
)
573 parse_exclude_pattern(&string
, &patternlen
, &flags
, &nowildcardlen
);
574 if (flags
& EXC_FLAG_MUSTBEDIR
) {
575 FLEXPTR_ALLOC_MEM(x
, pattern
, string
, patternlen
);
577 x
= xmalloc(sizeof(*x
));
580 x
->patternlen
= patternlen
;
581 x
->nowildcardlen
= nowildcardlen
;
583 x
->baselen
= baselen
;
586 ALLOC_GROW(el
->excludes
, el
->nr
+ 1, el
->alloc
);
587 el
->excludes
[el
->nr
++] = x
;
591 static void *read_skip_worktree_file_from_index(const char *path
, size_t *size
,
592 struct sha1_stat
*sha1_stat
)
596 enum object_type type
;
600 pos
= cache_name_pos(path
, len
);
603 if (!ce_skip_worktree(active_cache
[pos
]))
605 data
= read_sha1_file(active_cache
[pos
]->oid
.hash
, &type
, &sz
);
606 if (!data
|| type
!= OBJ_BLOB
) {
612 memset(&sha1_stat
->stat
, 0, sizeof(sha1_stat
->stat
));
613 hashcpy(sha1_stat
->sha1
, active_cache
[pos
]->oid
.hash
);
619 * Frees memory within el which was allocated for exclude patterns and
620 * the file buffer. Does not free el itself.
622 void clear_exclude_list(struct exclude_list
*el
)
626 for (i
= 0; i
< el
->nr
; i
++)
627 free(el
->excludes
[i
]);
631 memset(el
, 0, sizeof(*el
));
634 static void trim_trailing_spaces(char *buf
)
636 char *p
, *last_space
= NULL
;
638 for (p
= buf
; *p
; p
++)
658 * Given a subdirectory name and "dir" of the current directory,
659 * search the subdir in "dir" and return it, or create a new one if it
660 * does not exist in "dir".
662 * If "name" has the trailing slash, it'll be excluded in the search.
664 static struct untracked_cache_dir
*lookup_untracked(struct untracked_cache
*uc
,
665 struct untracked_cache_dir
*dir
,
666 const char *name
, int len
)
669 struct untracked_cache_dir
*d
;
672 if (len
&& name
[len
- 1] == '/')
676 while (last
> first
) {
677 int cmp
, next
= (last
+ first
) >> 1;
679 cmp
= strncmp(name
, d
->name
, len
);
680 if (!cmp
&& strlen(d
->name
) > len
)
692 FLEX_ALLOC_MEM(d
, name
, name
, len
);
694 ALLOC_GROW(dir
->dirs
, dir
->dirs_nr
+ 1, dir
->dirs_alloc
);
695 memmove(dir
->dirs
+ first
+ 1, dir
->dirs
+ first
,
696 (dir
->dirs_nr
- first
) * sizeof(*dir
->dirs
));
698 dir
->dirs
[first
] = d
;
702 static void do_invalidate_gitignore(struct untracked_cache_dir
*dir
)
706 dir
->untracked_nr
= 0;
707 for (i
= 0; i
< dir
->dirs_nr
; i
++)
708 do_invalidate_gitignore(dir
->dirs
[i
]);
711 static void invalidate_gitignore(struct untracked_cache
*uc
,
712 struct untracked_cache_dir
*dir
)
714 uc
->gitignore_invalidated
++;
715 do_invalidate_gitignore(dir
);
718 static void invalidate_directory(struct untracked_cache
*uc
,
719 struct untracked_cache_dir
*dir
)
722 uc
->dir_invalidated
++;
724 dir
->untracked_nr
= 0;
725 for (i
= 0; i
< dir
->dirs_nr
; i
++)
726 dir
->dirs
[i
]->recurse
= 0;
730 * Given a file with name "fname", read it (either from disk, or from
731 * the index if "check_index" is non-zero), parse it and store the
732 * exclude rules in "el".
734 * If "ss" is not NULL, compute SHA-1 of the exclude file and fill
735 * stat data from disk (only valid if add_excludes returns zero). If
736 * ss_valid is non-zero, "ss" must contain good value as input.
738 static int add_excludes(const char *fname
, const char *base
, int baselen
,
739 struct exclude_list
*el
, int check_index
,
740 struct sha1_stat
*sha1_stat
)
743 int fd
, i
, lineno
= 1;
747 fd
= open(fname
, O_RDONLY
);
748 if (fd
< 0 || fstat(fd
, &st
) < 0) {
750 warn_on_inaccessible(fname
);
754 (buf
= read_skip_worktree_file_from_index(fname
, &size
, sha1_stat
)) == NULL
)
760 if (buf
[size
-1] != '\n') {
761 buf
= xrealloc(buf
, st_add(size
, 1));
765 size
= xsize_t(st
.st_size
);
768 fill_stat_data(&sha1_stat
->stat
, &st
);
769 hashcpy(sha1_stat
->sha1
, EMPTY_BLOB_SHA1_BIN
);
770 sha1_stat
->valid
= 1;
775 buf
= xmallocz(size
);
776 if (read_in_full(fd
, buf
, size
) != size
) {
785 if (sha1_stat
->valid
&&
786 !match_stat_data_racy(&the_index
, &sha1_stat
->stat
, &st
))
787 ; /* no content change, ss->sha1 still good */
788 else if (check_index
&&
789 (pos
= cache_name_pos(fname
, strlen(fname
))) >= 0 &&
790 !ce_stage(active_cache
[pos
]) &&
791 ce_uptodate(active_cache
[pos
]) &&
792 !would_convert_to_git(fname
))
793 hashcpy(sha1_stat
->sha1
,
794 active_cache
[pos
]->oid
.hash
);
796 hash_sha1_file(buf
, size
, "blob", sha1_stat
->sha1
);
797 fill_stat_data(&sha1_stat
->stat
, &st
);
798 sha1_stat
->valid
= 1;
804 if (skip_utf8_bom(&buf
, size
))
805 size
-= buf
- el
->filebuf
;
809 for (i
= 0; i
< size
; i
++) {
810 if (buf
[i
] == '\n') {
811 if (entry
!= buf
+ i
&& entry
[0] != '#') {
812 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
813 trim_trailing_spaces(entry
);
814 add_exclude(entry
, base
, baselen
, el
, lineno
);
823 int add_excludes_from_file_to_list(const char *fname
, const char *base
,
824 int baselen
, struct exclude_list
*el
,
827 return add_excludes(fname
, base
, baselen
, el
, check_index
, NULL
);
830 struct exclude_list
*add_exclude_list(struct dir_struct
*dir
,
831 int group_type
, const char *src
)
833 struct exclude_list
*el
;
834 struct exclude_list_group
*group
;
836 group
= &dir
->exclude_list_group
[group_type
];
837 ALLOC_GROW(group
->el
, group
->nr
+ 1, group
->alloc
);
838 el
= &group
->el
[group
->nr
++];
839 memset(el
, 0, sizeof(*el
));
845 * Used to set up core.excludesfile and .git/info/exclude lists.
847 static void add_excludes_from_file_1(struct dir_struct
*dir
, const char *fname
,
848 struct sha1_stat
*sha1_stat
)
850 struct exclude_list
*el
;
852 * catch setup_standard_excludes() that's called before
853 * dir->untracked is assigned. That function behaves
854 * differently when dir->untracked is non-NULL.
857 dir
->unmanaged_exclude_files
++;
858 el
= add_exclude_list(dir
, EXC_FILE
, fname
);
859 if (add_excludes(fname
, "", 0, el
, 0, sha1_stat
) < 0)
860 die("cannot use %s as an exclude file", fname
);
863 void add_excludes_from_file(struct dir_struct
*dir
, const char *fname
)
865 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
866 add_excludes_from_file_1(dir
, fname
, NULL
);
869 int match_basename(const char *basename
, int basenamelen
,
870 const char *pattern
, int prefix
, int patternlen
,
873 if (prefix
== patternlen
) {
874 if (patternlen
== basenamelen
&&
875 !fspathncmp(pattern
, basename
, basenamelen
))
877 } else if (flags
& EXC_FLAG_ENDSWITH
) {
878 /* "*literal" matching against "fooliteral" */
879 if (patternlen
- 1 <= basenamelen
&&
880 !fspathncmp(pattern
+ 1,
881 basename
+ basenamelen
- (patternlen
- 1),
885 if (fnmatch_icase_mem(pattern
, patternlen
,
886 basename
, basenamelen
,
893 int match_pathname(const char *pathname
, int pathlen
,
894 const char *base
, int baselen
,
895 const char *pattern
, int prefix
, int patternlen
,
902 * match with FNM_PATHNAME; the pattern has base implicitly
905 if (*pattern
== '/') {
912 * baselen does not count the trailing slash. base[] may or
913 * may not end with a trailing slash though.
915 if (pathlen
< baselen
+ 1 ||
916 (baselen
&& pathname
[baselen
] != '/') ||
917 fspathncmp(pathname
, base
, baselen
))
920 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
921 name
= pathname
+ pathlen
- namelen
;
925 * if the non-wildcard part is longer than the
926 * remaining pathname, surely it cannot match.
928 if (prefix
> namelen
)
931 if (fspathncmp(pattern
, name
, prefix
))
934 patternlen
-= prefix
;
939 * If the whole pattern did not have a wildcard,
940 * then our prefix match is all we need; we
941 * do not need to call fnmatch at all.
943 if (!patternlen
&& !namelen
)
947 return fnmatch_icase_mem(pattern
, patternlen
,
953 * Scan the given exclude list in reverse to see whether pathname
954 * should be ignored. The first match (i.e. the last on the list), if
955 * any, determines the fate. Returns the exclude_list element which
956 * matched, or NULL for undecided.
958 static struct exclude
*last_exclude_matching_from_list(const char *pathname
,
960 const char *basename
,
962 struct exclude_list
*el
)
964 struct exclude
*exc
= NULL
; /* undecided */
968 return NULL
; /* undefined */
970 for (i
= el
->nr
- 1; 0 <= i
; i
--) {
971 struct exclude
*x
= el
->excludes
[i
];
972 const char *exclude
= x
->pattern
;
973 int prefix
= x
->nowildcardlen
;
975 if (x
->flags
& EXC_FLAG_MUSTBEDIR
) {
976 if (*dtype
== DT_UNKNOWN
)
977 *dtype
= get_dtype(NULL
, pathname
, pathlen
);
978 if (*dtype
!= DT_DIR
)
982 if (x
->flags
& EXC_FLAG_NODIR
) {
983 if (match_basename(basename
,
984 pathlen
- (basename
- pathname
),
985 exclude
, prefix
, x
->patternlen
,
993 assert(x
->baselen
== 0 || x
->base
[x
->baselen
- 1] == '/');
994 if (match_pathname(pathname
, pathlen
,
995 x
->base
, x
->baselen
? x
->baselen
- 1 : 0,
996 exclude
, prefix
, x
->patternlen
, x
->flags
)) {
1005 * Scan the list and let the last match determine the fate.
1006 * Return 1 for exclude, 0 for include and -1 for undecided.
1008 int is_excluded_from_list(const char *pathname
,
1009 int pathlen
, const char *basename
, int *dtype
,
1010 struct exclude_list
*el
)
1012 struct exclude
*exclude
;
1013 exclude
= last_exclude_matching_from_list(pathname
, pathlen
, basename
, dtype
, el
);
1015 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1016 return -1; /* undecided */
1019 static struct exclude
*last_exclude_matching_from_lists(struct dir_struct
*dir
,
1020 const char *pathname
, int pathlen
, const char *basename
,
1024 struct exclude_list_group
*group
;
1025 struct exclude
*exclude
;
1026 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
1027 group
= &dir
->exclude_list_group
[i
];
1028 for (j
= group
->nr
- 1; j
>= 0; j
--) {
1029 exclude
= last_exclude_matching_from_list(
1030 pathname
, pathlen
, basename
, dtype_p
,
1040 * Loads the per-directory exclude list for the substring of base
1041 * which has a char length of baselen.
1043 static void prep_exclude(struct dir_struct
*dir
, const char *base
, int baselen
)
1045 struct exclude_list_group
*group
;
1046 struct exclude_list
*el
;
1047 struct exclude_stack
*stk
= NULL
;
1048 struct untracked_cache_dir
*untracked
;
1051 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1054 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1055 * which originate from directories not in the prefix of the
1056 * path being checked.
1058 while ((stk
= dir
->exclude_stack
) != NULL
) {
1059 if (stk
->baselen
<= baselen
&&
1060 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1062 el
= &group
->el
[dir
->exclude_stack
->exclude_ix
];
1063 dir
->exclude_stack
= stk
->prev
;
1064 dir
->exclude
= NULL
;
1065 free((char *)el
->src
); /* see strbuf_detach() below */
1066 clear_exclude_list(el
);
1071 /* Skip traversing into sub directories if the parent is excluded */
1076 * Lazy initialization. All call sites currently just
1077 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1078 * them seems lots of work for little benefit.
1080 if (!dir
->basebuf
.buf
)
1081 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1083 /* Read from the parent directories and push them down. */
1084 current
= stk
? stk
->baselen
: -1;
1085 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1087 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1091 while (current
< baselen
) {
1093 struct sha1_stat sha1_stat
;
1095 stk
= xcalloc(1, sizeof(*stk
));
1100 cp
= strchr(base
+ current
+ 1, '/');
1102 die("oops in prep_exclude");
1105 lookup_untracked(dir
->untracked
, untracked
,
1107 cp
- base
- current
);
1109 stk
->prev
= dir
->exclude_stack
;
1110 stk
->baselen
= cp
- base
;
1111 stk
->exclude_ix
= group
->nr
;
1112 stk
->ucd
= untracked
;
1113 el
= add_exclude_list(dir
, EXC_DIRS
, NULL
);
1114 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1115 assert(stk
->baselen
== dir
->basebuf
.len
);
1117 /* Abort if the directory is excluded */
1120 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1121 dir
->exclude
= last_exclude_matching_from_lists(dir
,
1122 dir
->basebuf
.buf
, stk
->baselen
- 1,
1123 dir
->basebuf
.buf
+ current
, &dt
);
1124 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1126 dir
->exclude
->flags
& EXC_FLAG_NEGATIVE
)
1127 dir
->exclude
= NULL
;
1129 dir
->exclude_stack
= stk
;
1134 /* Try to read per-directory file */
1135 hashclr(sha1_stat
.sha1
);
1136 sha1_stat
.valid
= 0;
1137 if (dir
->exclude_per_dir
&&
1139 * If we know that no files have been added in
1140 * this directory (i.e. valid_cached_dir() has
1141 * been executed and set untracked->valid) ..
1143 (!untracked
|| !untracked
->valid
||
1145 * .. and .gitignore does not exist before
1146 * (i.e. null exclude_sha1). Then we can skip
1147 * loading .gitignore, which would result in
1150 !is_null_sha1(untracked
->exclude_sha1
))) {
1152 * dir->basebuf gets reused by the traversal, but we
1153 * need fname to remain unchanged to ensure the src
1154 * member of each struct exclude correctly
1155 * back-references its source file. Other invocations
1156 * of add_exclude_list provide stable strings, so we
1157 * strbuf_detach() and free() here in the caller.
1159 struct strbuf sb
= STRBUF_INIT
;
1160 strbuf_addbuf(&sb
, &dir
->basebuf
);
1161 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1162 el
->src
= strbuf_detach(&sb
, NULL
);
1163 add_excludes(el
->src
, el
->src
, stk
->baselen
, el
, 1,
1164 untracked
? &sha1_stat
: NULL
);
1167 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1168 * will first be called in valid_cached_dir() then maybe many
1169 * times more in last_exclude_matching(). When the cache is
1170 * used, last_exclude_matching() will not be called and
1171 * reading .gitignore content will be a waste.
1173 * So when it's called by valid_cached_dir() and we can get
1174 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1175 * modified on work tree), we could delay reading the
1176 * .gitignore content until we absolutely need it in
1177 * last_exclude_matching(). Be careful about ignore rule
1178 * order, though, if you do that.
1181 hashcmp(sha1_stat
.sha1
, untracked
->exclude_sha1
)) {
1182 invalidate_gitignore(dir
->untracked
, untracked
);
1183 hashcpy(untracked
->exclude_sha1
, sha1_stat
.sha1
);
1185 dir
->exclude_stack
= stk
;
1186 current
= stk
->baselen
;
1188 strbuf_setlen(&dir
->basebuf
, baselen
);
1192 * Loads the exclude lists for the directory containing pathname, then
1193 * scans all exclude lists to determine whether pathname is excluded.
1194 * Returns the exclude_list element which matched, or NULL for
1197 struct exclude
*last_exclude_matching(struct dir_struct
*dir
,
1198 const char *pathname
,
1201 int pathlen
= strlen(pathname
);
1202 const char *basename
= strrchr(pathname
, '/');
1203 basename
= (basename
) ? basename
+1 : pathname
;
1205 prep_exclude(dir
, pathname
, basename
-pathname
);
1208 return dir
->exclude
;
1210 return last_exclude_matching_from_lists(dir
, pathname
, pathlen
,
1215 * Loads the exclude lists for the directory containing pathname, then
1216 * scans all exclude lists to determine whether pathname is excluded.
1217 * Returns 1 if true, otherwise 0.
1219 int is_excluded(struct dir_struct
*dir
, const char *pathname
, int *dtype_p
)
1221 struct exclude
*exclude
=
1222 last_exclude_matching(dir
, pathname
, dtype_p
);
1224 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1228 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1230 struct dir_entry
*ent
;
1232 FLEX_ALLOC_MEM(ent
, name
, pathname
, len
);
1237 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
, const char *pathname
, int len
)
1239 if (cache_file_exists(pathname
, len
, ignore_case
))
1242 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1243 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1246 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
, const char *pathname
, int len
)
1248 if (!cache_name_is_other(pathname
, len
))
1251 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1252 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1256 index_nonexistent
= 0,
1262 * Do not use the alphabetically sorted index to look up
1263 * the directory name; instead, use the case insensitive
1266 static enum exist_status
directory_exists_in_index_icase(const char *dirname
, int len
)
1268 struct cache_entry
*ce
;
1270 if (cache_dir_exists(dirname
, len
))
1271 return index_directory
;
1273 ce
= cache_file_exists(dirname
, len
, ignore_case
);
1274 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1275 return index_gitdir
;
1277 return index_nonexistent
;
1281 * The index sorts alphabetically by entry name, which
1282 * means that a gitlink sorts as '\0' at the end, while
1283 * a directory (which is defined not as an entry, but as
1284 * the files it contains) will sort with the '/' at the
1287 static enum exist_status
directory_exists_in_index(const char *dirname
, int len
)
1292 return directory_exists_in_index_icase(dirname
, len
);
1294 pos
= cache_name_pos(dirname
, len
);
1297 while (pos
< active_nr
) {
1298 const struct cache_entry
*ce
= active_cache
[pos
++];
1299 unsigned char endchar
;
1301 if (strncmp(ce
->name
, dirname
, len
))
1303 endchar
= ce
->name
[len
];
1307 return index_directory
;
1308 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1309 return index_gitdir
;
1311 return index_nonexistent
;
1315 * When we find a directory when traversing the filesystem, we
1316 * have three distinct cases:
1319 * - see it as a directory
1322 * and which one we choose depends on a combination of existing
1323 * git index contents and the flags passed into the directory
1324 * traversal routine.
1326 * Case 1: If we *already* have entries in the index under that
1327 * directory name, we always recurse into the directory to see
1330 * Case 2: If we *already* have that directory name as a gitlink,
1331 * we always continue to see it as a gitlink, regardless of whether
1332 * there is an actual git directory there or not (it might not
1333 * be checked out as a subproject!)
1335 * Case 3: if we didn't have it in the index previously, we
1336 * have a few sub-cases:
1338 * (a) if "show_other_directories" is true, we show it as
1339 * just a directory, unless "hide_empty_directories" is
1340 * also true, in which case we need to check if it contains any
1341 * untracked and / or ignored files.
1342 * (b) if it looks like a git directory, and we don't have
1343 * 'no_gitlinks' set we treat it as a gitlink, and show it
1345 * (c) otherwise, we recurse into it.
1347 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1348 struct untracked_cache_dir
*untracked
,
1349 const char *dirname
, int len
, int baselen
, int exclude
,
1350 const struct pathspec
*pathspec
)
1352 /* The "len-1" is to strip the final '/' */
1353 switch (directory_exists_in_index(dirname
, len
-1)) {
1354 case index_directory
:
1355 return path_recurse
;
1360 case index_nonexistent
:
1361 if (dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)
1363 if (!(dir
->flags
& DIR_NO_GITLINKS
)) {
1364 unsigned char sha1
[20];
1365 if (resolve_gitlink_ref(dirname
, "HEAD", sha1
) == 0)
1366 return path_untracked
;
1368 return path_recurse
;
1371 /* This is the "show_other_directories" case */
1373 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1374 return exclude
? path_excluded
: path_untracked
;
1376 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1377 dirname
+ baselen
, len
- baselen
);
1378 return read_directory_recursive(dir
, dirname
, len
,
1379 untracked
, 1, pathspec
);
1383 * This is an inexact early pruning of any recursive directory
1384 * reading - if the path cannot possibly be in the pathspec,
1385 * return true, and we'll skip it early.
1387 static int simplify_away(const char *path
, int pathlen
,
1388 const struct pathspec
*pathspec
)
1392 if (!pathspec
|| !pathspec
->nr
)
1395 GUARD_PATHSPEC(pathspec
,
1404 for (i
= 0; i
< pathspec
->nr
; i
++) {
1405 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1406 int len
= item
->nowildcard_len
;
1410 if (!ps_strncmp(item
, item
->match
, path
, len
))
1418 * This function tells us whether an excluded path matches a
1419 * list of "interesting" pathspecs. That is, whether a path matched
1420 * by any of the pathspecs could possibly be ignored by excluding
1421 * the specified path. This can happen if:
1423 * 1. the path is mentioned explicitly in the pathspec
1425 * 2. the path is a directory prefix of some element in the
1428 static int exclude_matches_pathspec(const char *path
, int pathlen
,
1429 const struct pathspec
*pathspec
)
1433 if (!pathspec
|| !pathspec
->nr
)
1436 GUARD_PATHSPEC(pathspec
,
1444 for (i
= 0; i
< pathspec
->nr
; i
++) {
1445 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1446 int len
= item
->nowildcard_len
;
1448 if (len
== pathlen
&&
1449 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1451 if (len
> pathlen
&&
1452 item
->match
[pathlen
] == '/' &&
1453 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1459 static int get_index_dtype(const char *path
, int len
)
1462 const struct cache_entry
*ce
;
1464 ce
= cache_file_exists(path
, len
, 0);
1466 if (!ce_uptodate(ce
))
1468 if (S_ISGITLINK(ce
->ce_mode
))
1471 * Nobody actually cares about the
1472 * difference between DT_LNK and DT_REG
1477 /* Try to look it up as a directory */
1478 pos
= cache_name_pos(path
, len
);
1482 while (pos
< active_nr
) {
1483 ce
= active_cache
[pos
++];
1484 if (strncmp(ce
->name
, path
, len
))
1486 if (ce
->name
[len
] > '/')
1488 if (ce
->name
[len
] < '/')
1490 if (!ce_uptodate(ce
))
1491 break; /* continue? */
1497 static int get_dtype(struct dirent
*de
, const char *path
, int len
)
1499 int dtype
= de
? DTYPE(de
) : DT_UNKNOWN
;
1502 if (dtype
!= DT_UNKNOWN
)
1504 dtype
= get_index_dtype(path
, len
);
1505 if (dtype
!= DT_UNKNOWN
)
1507 if (lstat(path
, &st
))
1509 if (S_ISREG(st
.st_mode
))
1511 if (S_ISDIR(st
.st_mode
))
1513 if (S_ISLNK(st
.st_mode
))
1518 static enum path_treatment
treat_one_path(struct dir_struct
*dir
,
1519 struct untracked_cache_dir
*untracked
,
1520 struct strbuf
*path
,
1522 const struct pathspec
*pathspec
,
1523 int dtype
, struct dirent
*de
)
1526 int has_path_in_index
= !!cache_file_exists(path
->buf
, path
->len
, ignore_case
);
1528 if (dtype
== DT_UNKNOWN
)
1529 dtype
= get_dtype(de
, path
->buf
, path
->len
);
1531 /* Always exclude indexed files */
1532 if (dtype
!= DT_DIR
&& has_path_in_index
)
1536 * When we are looking at a directory P in the working tree,
1537 * there are three cases:
1539 * (1) P exists in the index. Everything inside the directory P in
1540 * the working tree needs to go when P is checked out from the
1543 * (2) P does not exist in the index, but there is P/Q in the index.
1544 * We know P will stay a directory when we check out the contents
1545 * of the index, but we do not know yet if there is a directory
1546 * P/Q in the working tree to be killed, so we need to recurse.
1548 * (3) P does not exist in the index, and there is no P/Q in the index
1549 * to require P to be a directory, either. Only in this case, we
1550 * know that everything inside P will not be killed without
1553 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
1554 (dtype
== DT_DIR
) &&
1555 !has_path_in_index
&&
1556 (directory_exists_in_index(path
->buf
, path
->len
) == index_nonexistent
))
1559 exclude
= is_excluded(dir
, path
->buf
, &dtype
);
1562 * Excluded? If we don't explicitly want to show
1563 * ignored files, ignore it
1565 if (exclude
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
1566 return path_excluded
;
1572 strbuf_addch(path
, '/');
1573 return treat_directory(dir
, untracked
, path
->buf
, path
->len
,
1574 baselen
, exclude
, pathspec
);
1577 return exclude
? path_excluded
: path_untracked
;
1581 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
1582 struct untracked_cache_dir
*untracked
,
1583 struct cached_dir
*cdir
,
1584 struct strbuf
*path
,
1586 const struct pathspec
*pathspec
)
1588 strbuf_setlen(path
, baselen
);
1590 strbuf_addstr(path
, cdir
->file
);
1591 return path_untracked
;
1593 strbuf_addstr(path
, cdir
->ucd
->name
);
1594 /* treat_one_path() does this before it calls treat_directory() */
1595 strbuf_complete(path
, '/');
1596 if (cdir
->ucd
->check_only
)
1598 * check_only is set as a result of treat_directory() getting
1599 * to its bottom. Verify again the same set of directories
1600 * with check_only set.
1602 return read_directory_recursive(dir
, path
->buf
, path
->len
,
1603 cdir
->ucd
, 1, pathspec
);
1605 * We get path_recurse in the first run when
1606 * directory_exists_in_index() returns index_nonexistent. We
1607 * are sure that new changes in the index does not impact the
1608 * outcome. Return now.
1610 return path_recurse
;
1613 static enum path_treatment
treat_path(struct dir_struct
*dir
,
1614 struct untracked_cache_dir
*untracked
,
1615 struct cached_dir
*cdir
,
1616 struct strbuf
*path
,
1618 const struct pathspec
*pathspec
)
1621 struct dirent
*de
= cdir
->de
;
1624 return treat_path_fast(dir
, untracked
, cdir
, path
,
1626 if (is_dot_or_dotdot(de
->d_name
) || !strcmp(de
->d_name
, ".git"))
1628 strbuf_setlen(path
, baselen
);
1629 strbuf_addstr(path
, de
->d_name
);
1630 if (simplify_away(path
->buf
, path
->len
, pathspec
))
1634 return treat_one_path(dir
, untracked
, path
, baselen
, pathspec
, dtype
, de
);
1637 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
1641 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
1642 dir
->untracked_alloc
);
1643 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
1646 static int valid_cached_dir(struct dir_struct
*dir
,
1647 struct untracked_cache_dir
*untracked
,
1648 struct strbuf
*path
,
1656 if (stat(path
->len
? path
->buf
: ".", &st
)) {
1657 invalidate_directory(dir
->untracked
, untracked
);
1658 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
1661 if (!untracked
->valid
||
1662 match_stat_data_racy(&the_index
, &untracked
->stat_data
, &st
)) {
1663 if (untracked
->valid
)
1664 invalidate_directory(dir
->untracked
, untracked
);
1665 fill_stat_data(&untracked
->stat_data
, &st
);
1669 if (untracked
->check_only
!= !!check_only
) {
1670 invalidate_directory(dir
->untracked
, untracked
);
1675 * prep_exclude will be called eventually on this directory,
1676 * but it's called much later in last_exclude_matching(). We
1677 * need it now to determine the validity of the cache for this
1678 * path. The next calls will be nearly no-op, the way
1679 * prep_exclude() is designed.
1681 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
1682 strbuf_addch(path
, '/');
1683 prep_exclude(dir
, path
->buf
, path
->len
);
1684 strbuf_setlen(path
, path
->len
- 1);
1686 prep_exclude(dir
, path
->buf
, path
->len
);
1688 /* hopefully prep_exclude() haven't invalidated this entry... */
1689 return untracked
->valid
;
1692 static int open_cached_dir(struct cached_dir
*cdir
,
1693 struct dir_struct
*dir
,
1694 struct untracked_cache_dir
*untracked
,
1695 struct strbuf
*path
,
1698 memset(cdir
, 0, sizeof(*cdir
));
1699 cdir
->untracked
= untracked
;
1700 if (valid_cached_dir(dir
, untracked
, path
, check_only
))
1702 cdir
->fdir
= opendir(path
->len
? path
->buf
: ".");
1704 dir
->untracked
->dir_opened
++;
1710 static int read_cached_dir(struct cached_dir
*cdir
)
1713 cdir
->de
= readdir(cdir
->fdir
);
1718 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
1719 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
1729 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
1730 struct untracked_cache_dir
*d
= cdir
->untracked
;
1731 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
1737 static void close_cached_dir(struct cached_dir
*cdir
)
1740 closedir(cdir
->fdir
);
1742 * We have gone through this directory and found no untracked
1743 * entries. Mark it valid.
1745 if (cdir
->untracked
) {
1746 cdir
->untracked
->valid
= 1;
1747 cdir
->untracked
->recurse
= 1;
1752 * Read a directory tree. We currently ignore anything but
1753 * directories, regular files and symlinks. That's because git
1754 * doesn't handle them at all yet. Maybe that will change some
1757 * Also, we ignore the name ".git" (even if it is not a directory).
1758 * That likely will not change.
1760 * Returns the most significant path_treatment value encountered in the scan.
1762 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
1763 const char *base
, int baselen
,
1764 struct untracked_cache_dir
*untracked
, int check_only
,
1765 const struct pathspec
*pathspec
)
1767 struct cached_dir cdir
;
1768 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
1769 struct strbuf path
= STRBUF_INIT
;
1771 strbuf_add(&path
, base
, baselen
);
1773 if (open_cached_dir(&cdir
, dir
, untracked
, &path
, check_only
))
1777 untracked
->check_only
= !!check_only
;
1779 while (!read_cached_dir(&cdir
)) {
1780 /* check how the file or directory should be treated */
1781 state
= treat_path(dir
, untracked
, &cdir
, &path
,
1784 if (state
> dir_state
)
1787 /* recurse into subdir if instructed by treat_path */
1788 if (state
== path_recurse
) {
1789 struct untracked_cache_dir
*ud
;
1790 ud
= lookup_untracked(dir
->untracked
, untracked
,
1792 path
.len
- baselen
);
1794 read_directory_recursive(dir
, path
.buf
,
1796 check_only
, pathspec
);
1797 if (subdir_state
> dir_state
)
1798 dir_state
= subdir_state
;
1802 /* abort early if maximum state has been reached */
1803 if (dir_state
== path_untracked
) {
1805 add_untracked(untracked
, path
.buf
+ baselen
);
1808 /* skip the dir_add_* part */
1812 /* add the path to the appropriate result list */
1815 if (dir
->flags
& DIR_SHOW_IGNORED
)
1816 dir_add_name(dir
, path
.buf
, path
.len
);
1817 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
1818 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
1819 exclude_matches_pathspec(path
.buf
, path
.len
,
1821 dir_add_ignored(dir
, path
.buf
, path
.len
);
1824 case path_untracked
:
1825 if (dir
->flags
& DIR_SHOW_IGNORED
)
1827 dir_add_name(dir
, path
.buf
, path
.len
);
1829 add_untracked(untracked
, path
.buf
+ baselen
);
1836 close_cached_dir(&cdir
);
1838 strbuf_release(&path
);
1843 static int cmp_name(const void *p1
, const void *p2
)
1845 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
1846 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
1848 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
1851 static int treat_leading_path(struct dir_struct
*dir
,
1852 const char *path
, int len
,
1853 const struct pathspec
*pathspec
)
1855 struct strbuf sb
= STRBUF_INIT
;
1856 int baselen
, rc
= 0;
1858 int old_flags
= dir
->flags
;
1860 while (len
&& path
[len
- 1] == '/')
1865 dir
->flags
&= ~DIR_SHOW_OTHER_DIRECTORIES
;
1867 cp
= path
+ baselen
+ !!baselen
;
1868 cp
= memchr(cp
, '/', path
+ len
- cp
);
1872 baselen
= cp
- path
;
1873 strbuf_setlen(&sb
, 0);
1874 strbuf_add(&sb
, path
, baselen
);
1875 if (!is_directory(sb
.buf
))
1877 if (simplify_away(sb
.buf
, sb
.len
, pathspec
))
1879 if (treat_one_path(dir
, NULL
, &sb
, baselen
, pathspec
,
1880 DT_DIR
, NULL
) == path_none
)
1881 break; /* do not recurse into it */
1882 if (len
<= baselen
) {
1884 break; /* finished checking */
1887 strbuf_release(&sb
);
1888 dir
->flags
= old_flags
;
1892 static const char *get_ident_string(void)
1894 static struct strbuf sb
= STRBUF_INIT
;
1899 if (uname(&uts
) < 0)
1900 die_errno(_("failed to get kernel name and information"));
1901 strbuf_addf(&sb
, "Location %s, system %s", get_git_work_tree(),
1906 static int ident_in_untracked(const struct untracked_cache
*uc
)
1909 * Previous git versions may have saved many NUL separated
1910 * strings in the "ident" field, but it is insane to manage
1911 * many locations, so just take care of the first one.
1914 return !strcmp(uc
->ident
.buf
, get_ident_string());
1917 static void set_untracked_ident(struct untracked_cache
*uc
)
1919 strbuf_reset(&uc
->ident
);
1920 strbuf_addstr(&uc
->ident
, get_ident_string());
1923 * This strbuf used to contain a list of NUL separated
1924 * strings, so save NUL too for backward compatibility.
1926 strbuf_addch(&uc
->ident
, 0);
1929 static void new_untracked_cache(struct index_state
*istate
)
1931 struct untracked_cache
*uc
= xcalloc(1, sizeof(*uc
));
1932 strbuf_init(&uc
->ident
, 100);
1933 uc
->exclude_per_dir
= ".gitignore";
1934 /* should be the same flags used by git-status */
1935 uc
->dir_flags
= DIR_SHOW_OTHER_DIRECTORIES
| DIR_HIDE_EMPTY_DIRECTORIES
;
1936 set_untracked_ident(uc
);
1937 istate
->untracked
= uc
;
1938 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1941 void add_untracked_cache(struct index_state
*istate
)
1943 if (!istate
->untracked
) {
1944 new_untracked_cache(istate
);
1946 if (!ident_in_untracked(istate
->untracked
)) {
1947 free_untracked_cache(istate
->untracked
);
1948 new_untracked_cache(istate
);
1953 void remove_untracked_cache(struct index_state
*istate
)
1955 if (istate
->untracked
) {
1956 free_untracked_cache(istate
->untracked
);
1957 istate
->untracked
= NULL
;
1958 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1962 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
1964 const struct pathspec
*pathspec
)
1966 struct untracked_cache_dir
*root
;
1968 if (!dir
->untracked
|| getenv("GIT_DISABLE_UNTRACKED_CACHE"))
1972 * We only support $GIT_DIR/info/exclude and core.excludesfile
1973 * as the global ignore rule files. Any other additions
1974 * (e.g. from command line) invalidate the cache. This
1975 * condition also catches running setup_standard_excludes()
1976 * before setting dir->untracked!
1978 if (dir
->unmanaged_exclude_files
)
1982 * Optimize for the main use case only: whole-tree git
1983 * status. More work involved in treat_leading_path() if we
1984 * use cache on just a subset of the worktree. pathspec
1985 * support could make the matter even worse.
1987 if (base_len
|| (pathspec
&& pathspec
->nr
))
1990 /* Different set of flags may produce different results */
1991 if (dir
->flags
!= dir
->untracked
->dir_flags
||
1993 * See treat_directory(), case index_nonexistent. Without
1994 * this flag, we may need to also cache .git file content
1995 * for the resolve_gitlink_ref() call, which we don't.
1997 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
1998 /* We don't support collecting ignore files */
1999 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
2000 DIR_COLLECT_IGNORED
)))
2004 * If we use .gitignore in the cache and now you change it to
2005 * .gitexclude, everything will go wrong.
2007 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
2008 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
2012 * EXC_CMDL is not considered in the cache. If people set it,
2015 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
2018 if (!ident_in_untracked(dir
->untracked
)) {
2019 warning(_("Untracked cache is disabled on this system or location."));
2023 if (!dir
->untracked
->root
) {
2024 const int len
= sizeof(*dir
->untracked
->root
);
2025 dir
->untracked
->root
= xmalloc(len
);
2026 memset(dir
->untracked
->root
, 0, len
);
2029 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2030 root
= dir
->untracked
->root
;
2031 if (hashcmp(dir
->ss_info_exclude
.sha1
,
2032 dir
->untracked
->ss_info_exclude
.sha1
)) {
2033 invalidate_gitignore(dir
->untracked
, root
);
2034 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2036 if (hashcmp(dir
->ss_excludes_file
.sha1
,
2037 dir
->untracked
->ss_excludes_file
.sha1
)) {
2038 invalidate_gitignore(dir
->untracked
, root
);
2039 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2042 /* Make sure this directory is not dropped out at saving phase */
2047 int read_directory(struct dir_struct
*dir
, const char *path
,
2048 int len
, const struct pathspec
*pathspec
)
2050 struct untracked_cache_dir
*untracked
;
2052 if (has_symlink_leading_path(path
, len
))
2055 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2058 * make sure untracked cache code path is disabled,
2059 * e.g. prep_exclude()
2061 dir
->untracked
= NULL
;
2062 if (!len
|| treat_leading_path(dir
, path
, len
, pathspec
))
2063 read_directory_recursive(dir
, path
, len
, untracked
, 0, pathspec
);
2064 QSORT(dir
->entries
, dir
->nr
, cmp_name
);
2065 QSORT(dir
->ignored
, dir
->ignored_nr
, cmp_name
);
2066 if (dir
->untracked
) {
2067 static struct trace_key trace_untracked_stats
= TRACE_KEY_INIT(UNTRACKED_STATS
);
2068 trace_printf_key(&trace_untracked_stats
,
2069 "node creation: %u\n"
2070 "gitignore invalidation: %u\n"
2071 "directory invalidation: %u\n"
2073 dir
->untracked
->dir_created
,
2074 dir
->untracked
->gitignore_invalidated
,
2075 dir
->untracked
->dir_invalidated
,
2076 dir
->untracked
->dir_opened
);
2077 if (dir
->untracked
== the_index
.untracked
&&
2078 (dir
->untracked
->dir_opened
||
2079 dir
->untracked
->gitignore_invalidated
||
2080 dir
->untracked
->dir_invalidated
))
2081 the_index
.cache_changed
|= UNTRACKED_CHANGED
;
2082 if (dir
->untracked
!= the_index
.untracked
) {
2083 free(dir
->untracked
);
2084 dir
->untracked
= NULL
;
2090 int file_exists(const char *f
)
2093 return lstat(f
, &sb
) == 0;
2096 static int cmp_icase(char a
, char b
)
2101 return toupper(a
) - toupper(b
);
2106 * Given two normalized paths (a trailing slash is ok), if subdir is
2107 * outside dir, return -1. Otherwise return the offset in subdir that
2108 * can be used as relative path to dir.
2110 int dir_inside_of(const char *subdir
, const char *dir
)
2114 assert(dir
&& subdir
&& *dir
&& *subdir
);
2116 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2122 /* hel[p]/me vs hel[l]/yeah */
2123 if (*dir
&& *subdir
)
2127 return !*dir
? offset
: -1; /* same dir */
2129 /* foo/[b]ar vs foo/[] */
2130 if (is_dir_sep(dir
[-1]))
2131 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2133 /* foo[/]bar vs foo[] */
2134 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2137 int is_inside_dir(const char *dir
)
2146 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2151 int is_empty_dir(const char *path
)
2153 DIR *dir
= opendir(path
);
2160 while ((e
= readdir(dir
)) != NULL
)
2161 if (!is_dot_or_dotdot(e
->d_name
)) {
2170 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2174 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2175 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2176 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2177 unsigned char submodule_head
[20];
2179 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2180 !resolve_gitlink_ref(path
->buf
, "HEAD", submodule_head
)) {
2181 /* Do not descend and nuke a nested git work tree. */
2187 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2188 dir
= opendir(path
->buf
);
2190 if (errno
== ENOENT
)
2191 return keep_toplevel
? -1 : 0;
2192 else if (errno
== EACCES
&& !keep_toplevel
)
2194 * An empty dir could be removable even if it
2197 return rmdir(path
->buf
);
2201 strbuf_complete(path
, '/');
2204 while ((e
= readdir(dir
)) != NULL
) {
2206 if (is_dot_or_dotdot(e
->d_name
))
2209 strbuf_setlen(path
, len
);
2210 strbuf_addstr(path
, e
->d_name
);
2211 if (lstat(path
->buf
, &st
)) {
2212 if (errno
== ENOENT
)
2214 * file disappeared, which is what we
2219 } else if (S_ISDIR(st
.st_mode
)) {
2220 if (!remove_dir_recurse(path
, flag
, &kept_down
))
2221 continue; /* happy */
2222 } else if (!only_empty
&&
2223 (!unlink(path
->buf
) || errno
== ENOENT
)) {
2224 continue; /* happy, too */
2227 /* path too long, stat fails, or non-directory still exists */
2233 strbuf_setlen(path
, original_len
);
2234 if (!ret
&& !keep_toplevel
&& !kept_down
)
2235 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
2238 * report the uplevel that it is not an error that we
2239 * did not rmdir() our directory.
2245 int remove_dir_recursively(struct strbuf
*path
, int flag
)
2247 return remove_dir_recurse(path
, flag
, NULL
);
2250 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
2252 void setup_standard_excludes(struct dir_struct
*dir
)
2254 dir
->exclude_per_dir
= ".gitignore";
2256 /* core.excludefile defaulting to $XDG_HOME/git/ignore */
2258 excludes_file
= xdg_config_home("ignore");
2259 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
2260 add_excludes_from_file_1(dir
, excludes_file
,
2261 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
2263 /* per repository user preference */
2264 if (startup_info
->have_repository
) {
2265 const char *path
= git_path_info_exclude();
2266 if (!access_or_warn(path
, R_OK
, 0))
2267 add_excludes_from_file_1(dir
, path
,
2268 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
2272 int remove_path(const char *name
)
2276 if (unlink(name
) && errno
!= ENOENT
&& errno
!= ENOTDIR
)
2279 slash
= strrchr(name
, '/');
2281 char *dirs
= xstrdup(name
);
2282 slash
= dirs
+ (slash
- name
);
2285 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
2292 * Frees memory within dir which was allocated for exclude lists and
2293 * the exclude_stack. Does not free dir itself.
2295 void clear_directory(struct dir_struct
*dir
)
2298 struct exclude_list_group
*group
;
2299 struct exclude_list
*el
;
2300 struct exclude_stack
*stk
;
2302 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
2303 group
= &dir
->exclude_list_group
[i
];
2304 for (j
= 0; j
< group
->nr
; j
++) {
2307 free((char *)el
->src
);
2308 clear_exclude_list(el
);
2313 stk
= dir
->exclude_stack
;
2315 struct exclude_stack
*prev
= stk
->prev
;
2319 strbuf_release(&dir
->basebuf
);
2322 struct ondisk_untracked_cache
{
2323 struct stat_data info_exclude_stat
;
2324 struct stat_data excludes_file_stat
;
2326 unsigned char info_exclude_sha1
[20];
2327 unsigned char excludes_file_sha1
[20];
2328 char exclude_per_dir
[FLEX_ARRAY
];
2331 #define ouc_size(len) (offsetof(struct ondisk_untracked_cache, exclude_per_dir) + len + 1)
2334 int index
; /* number of written untracked_cache_dir */
2335 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
2336 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
2337 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
2339 struct strbuf sb_stat
;
2340 struct strbuf sb_sha1
;
2343 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
2345 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
2346 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
2347 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
2348 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
2349 to
->sd_dev
= htonl(from
->sd_dev
);
2350 to
->sd_ino
= htonl(from
->sd_ino
);
2351 to
->sd_uid
= htonl(from
->sd_uid
);
2352 to
->sd_gid
= htonl(from
->sd_gid
);
2353 to
->sd_size
= htonl(from
->sd_size
);
2356 static void write_one_dir(struct untracked_cache_dir
*untracked
,
2357 struct write_data
*wd
)
2359 struct stat_data stat_data
;
2360 struct strbuf
*out
= &wd
->out
;
2361 unsigned char intbuf
[16];
2362 unsigned int intlen
, value
;
2363 int i
= wd
->index
++;
2366 * untracked_nr should be reset whenever valid is clear, but
2369 if (!untracked
->valid
) {
2370 untracked
->untracked_nr
= 0;
2371 untracked
->check_only
= 0;
2374 if (untracked
->check_only
)
2375 ewah_set(wd
->check_only
, i
);
2376 if (untracked
->valid
) {
2377 ewah_set(wd
->valid
, i
);
2378 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
2379 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
2381 if (!is_null_sha1(untracked
->exclude_sha1
)) {
2382 ewah_set(wd
->sha1_valid
, i
);
2383 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_sha1
, 20);
2386 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
2387 strbuf_add(out
, intbuf
, intlen
);
2389 /* skip non-recurse directories */
2390 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
2391 if (untracked
->dirs
[i
]->recurse
)
2393 intlen
= encode_varint(value
, intbuf
);
2394 strbuf_add(out
, intbuf
, intlen
);
2396 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
2398 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
2399 strbuf_add(out
, untracked
->untracked
[i
],
2400 strlen(untracked
->untracked
[i
]) + 1);
2402 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
2403 if (untracked
->dirs
[i
]->recurse
)
2404 write_one_dir(untracked
->dirs
[i
], wd
);
2407 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
2409 struct ondisk_untracked_cache
*ouc
;
2410 struct write_data wd
;
2411 unsigned char varbuf
[16];
2413 size_t len
= strlen(untracked
->exclude_per_dir
);
2415 FLEX_ALLOC_MEM(ouc
, exclude_per_dir
, untracked
->exclude_per_dir
, len
);
2416 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
2417 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
2418 hashcpy(ouc
->info_exclude_sha1
, untracked
->ss_info_exclude
.sha1
);
2419 hashcpy(ouc
->excludes_file_sha1
, untracked
->ss_excludes_file
.sha1
);
2420 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
2422 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
2423 strbuf_add(out
, varbuf
, varint_len
);
2424 strbuf_addbuf(out
, &untracked
->ident
);
2426 strbuf_add(out
, ouc
, ouc_size(len
));
2430 if (!untracked
->root
) {
2431 varint_len
= encode_varint(0, varbuf
);
2432 strbuf_add(out
, varbuf
, varint_len
);
2437 wd
.check_only
= ewah_new();
2438 wd
.valid
= ewah_new();
2439 wd
.sha1_valid
= ewah_new();
2440 strbuf_init(&wd
.out
, 1024);
2441 strbuf_init(&wd
.sb_stat
, 1024);
2442 strbuf_init(&wd
.sb_sha1
, 1024);
2443 write_one_dir(untracked
->root
, &wd
);
2445 varint_len
= encode_varint(wd
.index
, varbuf
);
2446 strbuf_add(out
, varbuf
, varint_len
);
2447 strbuf_addbuf(out
, &wd
.out
);
2448 ewah_serialize_strbuf(wd
.valid
, out
);
2449 ewah_serialize_strbuf(wd
.check_only
, out
);
2450 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
2451 strbuf_addbuf(out
, &wd
.sb_stat
);
2452 strbuf_addbuf(out
, &wd
.sb_sha1
);
2453 strbuf_addch(out
, '\0'); /* safe guard for string lists */
2455 ewah_free(wd
.valid
);
2456 ewah_free(wd
.check_only
);
2457 ewah_free(wd
.sha1_valid
);
2458 strbuf_release(&wd
.out
);
2459 strbuf_release(&wd
.sb_stat
);
2460 strbuf_release(&wd
.sb_sha1
);
2463 static void free_untracked(struct untracked_cache_dir
*ucd
)
2468 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
2469 free_untracked(ucd
->dirs
[i
]);
2470 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
2471 free(ucd
->untracked
[i
]);
2472 free(ucd
->untracked
);
2477 void free_untracked_cache(struct untracked_cache
*uc
)
2480 free_untracked(uc
->root
);
2486 struct untracked_cache_dir
**ucd
;
2487 struct ewah_bitmap
*check_only
;
2488 struct ewah_bitmap
*valid
;
2489 struct ewah_bitmap
*sha1_valid
;
2490 const unsigned char *data
;
2491 const unsigned char *end
;
2494 static void stat_data_from_disk(struct stat_data
*to
, const struct stat_data
*from
)
2496 to
->sd_ctime
.sec
= get_be32(&from
->sd_ctime
.sec
);
2497 to
->sd_ctime
.nsec
= get_be32(&from
->sd_ctime
.nsec
);
2498 to
->sd_mtime
.sec
= get_be32(&from
->sd_mtime
.sec
);
2499 to
->sd_mtime
.nsec
= get_be32(&from
->sd_mtime
.nsec
);
2500 to
->sd_dev
= get_be32(&from
->sd_dev
);
2501 to
->sd_ino
= get_be32(&from
->sd_ino
);
2502 to
->sd_uid
= get_be32(&from
->sd_uid
);
2503 to
->sd_gid
= get_be32(&from
->sd_gid
);
2504 to
->sd_size
= get_be32(&from
->sd_size
);
2507 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
2508 struct read_data
*rd
)
2510 struct untracked_cache_dir ud
, *untracked
;
2511 const unsigned char *next
, *data
= rd
->data
, *end
= rd
->end
;
2515 memset(&ud
, 0, sizeof(ud
));
2518 value
= decode_varint(&next
);
2522 ud
.untracked_alloc
= value
;
2523 ud
.untracked_nr
= value
;
2524 if (ud
.untracked_nr
)
2525 ALLOC_ARRAY(ud
.untracked
, ud
.untracked_nr
);
2529 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&next
);
2532 ALLOC_ARRAY(ud
.dirs
, ud
.dirs_nr
);
2535 len
= strlen((const char *)data
);
2536 next
= data
+ len
+ 1;
2539 *untracked_
= untracked
= xmalloc(st_add(sizeof(*untracked
), len
));
2540 memcpy(untracked
, &ud
, sizeof(ud
));
2541 memcpy(untracked
->name
, data
, len
+ 1);
2544 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
2545 len
= strlen((const char *)data
);
2546 next
= data
+ len
+ 1;
2549 untracked
->untracked
[i
] = xstrdup((const char*)data
);
2553 rd
->ucd
[rd
->index
++] = untracked
;
2556 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
2557 len
= read_one_dir(untracked
->dirs
+ i
, rd
);
2564 static void set_check_only(size_t pos
, void *cb
)
2566 struct read_data
*rd
= cb
;
2567 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2571 static void read_stat(size_t pos
, void *cb
)
2573 struct read_data
*rd
= cb
;
2574 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2575 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
2576 rd
->data
= rd
->end
+ 1;
2579 stat_data_from_disk(&ud
->stat_data
, (struct stat_data
*)rd
->data
);
2580 rd
->data
+= sizeof(struct stat_data
);
2584 static void read_sha1(size_t pos
, void *cb
)
2586 struct read_data
*rd
= cb
;
2587 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2588 if (rd
->data
+ 20 > rd
->end
) {
2589 rd
->data
= rd
->end
+ 1;
2592 hashcpy(ud
->exclude_sha1
, rd
->data
);
2596 static void load_sha1_stat(struct sha1_stat
*sha1_stat
,
2597 const struct stat_data
*stat
,
2598 const unsigned char *sha1
)
2600 stat_data_from_disk(&sha1_stat
->stat
, stat
);
2601 hashcpy(sha1_stat
->sha1
, sha1
);
2602 sha1_stat
->valid
= 1;
2605 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
2607 const struct ondisk_untracked_cache
*ouc
;
2608 struct untracked_cache
*uc
;
2609 struct read_data rd
;
2610 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
2614 if (sz
<= 1 || end
[-1] != '\0')
2618 ident_len
= decode_varint(&next
);
2619 if (next
+ ident_len
> end
)
2621 ident
= (const char *)next
;
2624 ouc
= (const struct ondisk_untracked_cache
*)next
;
2625 if (next
+ ouc_size(0) > end
)
2628 uc
= xcalloc(1, sizeof(*uc
));
2629 strbuf_init(&uc
->ident
, ident_len
);
2630 strbuf_add(&uc
->ident
, ident
, ident_len
);
2631 load_sha1_stat(&uc
->ss_info_exclude
, &ouc
->info_exclude_stat
,
2632 ouc
->info_exclude_sha1
);
2633 load_sha1_stat(&uc
->ss_excludes_file
, &ouc
->excludes_file_stat
,
2634 ouc
->excludes_file_sha1
);
2635 uc
->dir_flags
= get_be32(&ouc
->dir_flags
);
2636 uc
->exclude_per_dir
= xstrdup(ouc
->exclude_per_dir
);
2637 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
2638 next
+= ouc_size(strlen(ouc
->exclude_per_dir
));
2642 len
= decode_varint(&next
);
2643 if (next
> end
|| len
== 0)
2646 rd
.valid
= ewah_new();
2647 rd
.check_only
= ewah_new();
2648 rd
.sha1_valid
= ewah_new();
2652 ALLOC_ARRAY(rd
.ucd
, len
);
2654 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
2658 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
2663 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
2668 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
2672 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
2673 rd
.data
= next
+ len
;
2674 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
2675 ewah_each_bit(rd
.sha1_valid
, read_sha1
, &rd
);
2680 ewah_free(rd
.valid
);
2681 ewah_free(rd
.check_only
);
2682 ewah_free(rd
.sha1_valid
);
2685 free_untracked_cache(uc
);
2691 static void invalidate_one_directory(struct untracked_cache
*uc
,
2692 struct untracked_cache_dir
*ucd
)
2694 uc
->dir_invalidated
++;
2696 ucd
->untracked_nr
= 0;
2700 * Normally when an entry is added or removed from a directory,
2701 * invalidating that directory is enough. No need to touch its
2702 * ancestors. When a directory is shown as "foo/bar/" in git-status
2703 * however, deleting or adding an entry may have cascading effect.
2705 * Say the "foo/bar/file" has become untracked, we need to tell the
2706 * untracked_cache_dir of "foo" that "bar/" is not an untracked
2707 * directory any more (because "bar" is managed by foo as an untracked
2710 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
2711 * was the last untracked entry in the entire "foo", we should show
2712 * "foo/" instead. Which means we have to invalidate past "bar" up to
2715 * This function traverses all directories from root to leaf. If there
2716 * is a chance of one of the above cases happening, we invalidate back
2717 * to root. Otherwise we just invalidate the leaf. There may be a more
2718 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
2719 * detect these cases and avoid unnecessary invalidation, for example,
2720 * checking for the untracked entry named "bar/" in "foo", but for now
2721 * stick to something safe and simple.
2723 static int invalidate_one_component(struct untracked_cache
*uc
,
2724 struct untracked_cache_dir
*dir
,
2725 const char *path
, int len
)
2727 const char *rest
= strchr(path
, '/');
2730 int component_len
= rest
- path
;
2731 struct untracked_cache_dir
*d
=
2732 lookup_untracked(uc
, dir
, path
, component_len
);
2734 invalidate_one_component(uc
, d
, rest
+ 1,
2735 len
- (component_len
+ 1));
2737 invalidate_one_directory(uc
, dir
);
2741 invalidate_one_directory(uc
, dir
);
2742 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
2745 void untracked_cache_invalidate_path(struct index_state
*istate
,
2748 if (!istate
->untracked
|| !istate
->untracked
->root
)
2750 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
2751 path
, strlen(path
));
2754 void untracked_cache_remove_from_index(struct index_state
*istate
,
2757 untracked_cache_invalidate_path(istate
, path
);
2760 void untracked_cache_add_to_index(struct index_state
*istate
,
2763 untracked_cache_invalidate_path(istate
, path
);
2766 /* Update gitfile and core.worktree setting to connect work tree and git dir */
2767 void connect_work_tree_and_git_dir(const char *work_tree_
, const char *git_dir_
)
2769 struct strbuf gitfile_sb
= STRBUF_INIT
;
2770 struct strbuf cfg_sb
= STRBUF_INIT
;
2771 struct strbuf rel_path
= STRBUF_INIT
;
2772 char *git_dir
, *work_tree
;
2774 /* Prepare .git file */
2775 strbuf_addf(&gitfile_sb
, "%s/.git", work_tree_
);
2776 if (safe_create_leading_directories_const(gitfile_sb
.buf
))
2777 die(_("could not create directories for %s"), gitfile_sb
.buf
);
2779 /* Prepare config file */
2780 strbuf_addf(&cfg_sb
, "%s/config", git_dir_
);
2781 if (safe_create_leading_directories_const(cfg_sb
.buf
))
2782 die(_("could not create directories for %s"), cfg_sb
.buf
);
2784 git_dir
= real_pathdup(git_dir_
, 1);
2785 work_tree
= real_pathdup(work_tree_
, 1);
2787 /* Write .git file */
2788 write_file(gitfile_sb
.buf
, "gitdir: %s",
2789 relative_path(git_dir
, work_tree
, &rel_path
));
2790 /* Update core.worktree setting */
2791 git_config_set_in_file(cfg_sb
.buf
, "core.worktree",
2792 relative_path(work_tree
, git_dir
, &rel_path
));
2794 strbuf_release(&gitfile_sb
);
2795 strbuf_release(&cfg_sb
);
2796 strbuf_release(&rel_path
);
2802 * Migrate the git directory of the given path from old_git_dir to new_git_dir.
2804 void relocate_gitdir(const char *path
, const char *old_git_dir
, const char *new_git_dir
)
2806 if (rename(old_git_dir
, new_git_dir
) < 0)
2807 die_errno(_("could not migrate git directory from '%s' to '%s'"),
2808 old_git_dir
, new_git_dir
);
2810 connect_work_tree_and_git_dir(path
, new_git_dir
);