2 * This handles recursive filename detection with exclude
3 * files, index knowledge etc..
5 * See Documentation/technical/api-directory-listing.txt
7 * Copyright (C) Linus Torvalds, 2005-2006
8 * Junio Hamano, 2005-2006
10 #define NO_THE_INDEX_COMPATIBILITY_MACROS
16 #include "wildmatch.h"
20 #include "ewah/ewok.h"
23 * Tells read_directory_recursive how a file or directory should be treated.
24 * Values are ordered by significance, e.g. if a directory contains both
25 * excluded and untracked files, it is listed as untracked because
26 * path_untracked > path_excluded.
36 * Support data structure for our opendir/readdir/closedir wrappers
40 struct untracked_cache_dir
*untracked
;
46 struct untracked_cache_dir
*ucd
;
49 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
50 struct index_state
*istate
, const char *path
, int len
,
51 struct untracked_cache_dir
*untracked
,
52 int check_only
, int stop_at_first_file
, const struct pathspec
*pathspec
);
53 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
54 const char *path
, int len
);
56 int count_slashes(const char *s
)
65 int fspathcmp(const char *a
, const char *b
)
67 return ignore_case
? strcasecmp(a
, b
) : strcmp(a
, b
);
70 int fspathncmp(const char *a
, const char *b
, size_t count
)
72 return ignore_case
? strncasecmp(a
, b
, count
) : strncmp(a
, b
, count
);
75 int git_fnmatch(const struct pathspec_item
*item
,
76 const char *pattern
, const char *string
,
80 if (ps_strncmp(item
, pattern
, string
, prefix
))
85 if (item
->flags
& PATHSPEC_ONESTAR
) {
86 int pattern_len
= strlen(++pattern
);
87 int string_len
= strlen(string
);
88 return string_len
< pattern_len
||
89 ps_strcmp(item
, pattern
,
90 string
+ string_len
- pattern_len
);
92 if (item
->magic
& PATHSPEC_GLOB
)
93 return wildmatch(pattern
, string
,
95 (item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0));
97 /* wildmatch has not learned no FNM_PATHNAME mode yet */
98 return wildmatch(pattern
, string
,
99 item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0);
102 static int fnmatch_icase_mem(const char *pattern
, int patternlen
,
103 const char *string
, int stringlen
,
107 struct strbuf pat_buf
= STRBUF_INIT
;
108 struct strbuf str_buf
= STRBUF_INIT
;
109 const char *use_pat
= pattern
;
110 const char *use_str
= string
;
112 if (pattern
[patternlen
]) {
113 strbuf_add(&pat_buf
, pattern
, patternlen
);
114 use_pat
= pat_buf
.buf
;
116 if (string
[stringlen
]) {
117 strbuf_add(&str_buf
, string
, stringlen
);
118 use_str
= str_buf
.buf
;
122 flags
|= WM_CASEFOLD
;
123 match_status
= wildmatch(use_pat
, use_str
, flags
);
125 strbuf_release(&pat_buf
);
126 strbuf_release(&str_buf
);
131 static size_t common_prefix_len(const struct pathspec
*pathspec
)
137 * ":(icase)path" is treated as a pathspec full of
138 * wildcard. In other words, only prefix is considered common
139 * prefix. If the pathspec is abc/foo abc/bar, running in
140 * subdir xyz, the common prefix is still xyz, not xuz/abc as
143 GUARD_PATHSPEC(pathspec
,
152 for (n
= 0; n
< pathspec
->nr
; n
++) {
153 size_t i
= 0, len
= 0, item_len
;
154 if (pathspec
->items
[n
].magic
& PATHSPEC_EXCLUDE
)
156 if (pathspec
->items
[n
].magic
& PATHSPEC_ICASE
)
157 item_len
= pathspec
->items
[n
].prefix
;
159 item_len
= pathspec
->items
[n
].nowildcard_len
;
160 while (i
< item_len
&& (n
== 0 || i
< max
)) {
161 char c
= pathspec
->items
[n
].match
[i
];
162 if (c
!= pathspec
->items
[0].match
[i
])
168 if (n
== 0 || len
< max
) {
178 * Returns a copy of the longest leading path common among all
181 char *common_prefix(const struct pathspec
*pathspec
)
183 unsigned long len
= common_prefix_len(pathspec
);
185 return len
? xmemdupz(pathspec
->items
[0].match
, len
) : NULL
;
188 int fill_directory(struct dir_struct
*dir
,
189 struct index_state
*istate
,
190 const struct pathspec
*pathspec
)
196 * Calculate common prefix for the pathspec, and
197 * use that to optimize the directory walk
199 prefix_len
= common_prefix_len(pathspec
);
200 prefix
= prefix_len
? pathspec
->items
[0].match
: "";
202 /* Read the directory and prune it */
203 read_directory(dir
, istate
, prefix
, prefix_len
, pathspec
);
208 int within_depth(const char *name
, int namelen
,
209 int depth
, int max_depth
)
211 const char *cp
= name
, *cpe
= name
+ namelen
;
217 if (depth
> max_depth
)
223 #define DO_MATCH_EXCLUDE (1<<0)
224 #define DO_MATCH_DIRECTORY (1<<1)
225 #define DO_MATCH_SUBMODULE (1<<2)
227 static int match_attrs(const char *name
, int namelen
,
228 const struct pathspec_item
*item
)
232 git_check_attr(name
, item
->attr_check
);
233 for (i
= 0; i
< item
->attr_match_nr
; i
++) {
236 enum attr_match_mode match_mode
;
238 value
= item
->attr_check
->items
[i
].value
;
239 match_mode
= item
->attr_match
[i
].match_mode
;
241 if (ATTR_TRUE(value
))
242 matched
= (match_mode
== MATCH_SET
);
243 else if (ATTR_FALSE(value
))
244 matched
= (match_mode
== MATCH_UNSET
);
245 else if (ATTR_UNSET(value
))
246 matched
= (match_mode
== MATCH_UNSPECIFIED
);
248 matched
= (match_mode
== MATCH_VALUE
&&
249 !strcmp(item
->attr_match
[i
].value
, value
));
258 * Does 'match' match the given name?
259 * A match is found if
261 * (1) the 'match' string is leading directory of 'name', or
262 * (2) the 'match' string is a wildcard and matches 'name', or
263 * (3) the 'match' string is exactly the same as 'name'.
265 * and the return value tells which case it was.
267 * It returns 0 when there is no match.
269 static int match_pathspec_item(const struct pathspec_item
*item
, int prefix
,
270 const char *name
, int namelen
, unsigned flags
)
272 /* name/namelen has prefix cut off by caller */
273 const char *match
= item
->match
+ prefix
;
274 int matchlen
= item
->len
- prefix
;
277 * The normal call pattern is:
278 * 1. prefix = common_prefix_len(ps);
279 * 2. prune something, or fill_directory
280 * 3. match_pathspec()
282 * 'prefix' at #1 may be shorter than the command's prefix and
283 * it's ok for #2 to match extra files. Those extras will be
286 * Suppose the pathspec is 'foo' and '../bar' running from
287 * subdir 'xyz'. The common prefix at #1 will be empty, thanks
288 * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The
289 * user does not want XYZ/foo, only the "foo" part should be
290 * case-insensitive. We need to filter out XYZ/foo here. In
291 * other words, we do not trust the caller on comparing the
292 * prefix part when :(icase) is involved. We do exact
293 * comparison ourselves.
295 * Normally the caller (common_prefix_len() in fact) does
296 * _exact_ matching on name[-prefix+1..-1] and we do not need
297 * to check that part. Be defensive and check it anyway, in
298 * case common_prefix_len is changed, or a new caller is
299 * introduced that does not use common_prefix_len.
301 * If the penalty turns out too high when prefix is really
302 * long, maybe change it to
303 * strncmp(match, name, item->prefix - prefix)
305 if (item
->prefix
&& (item
->magic
& PATHSPEC_ICASE
) &&
306 strncmp(item
->match
, name
- prefix
, item
->prefix
))
309 if (item
->attr_match_nr
&& !match_attrs(name
, namelen
, item
))
312 /* If the match was just the prefix, we matched */
314 return MATCHED_RECURSIVELY
;
316 if (matchlen
<= namelen
&& !ps_strncmp(item
, match
, name
, matchlen
)) {
317 if (matchlen
== namelen
)
318 return MATCHED_EXACTLY
;
320 if (match
[matchlen
-1] == '/' || name
[matchlen
] == '/')
321 return MATCHED_RECURSIVELY
;
322 } else if ((flags
& DO_MATCH_DIRECTORY
) &&
323 match
[matchlen
- 1] == '/' &&
324 namelen
== matchlen
- 1 &&
325 !ps_strncmp(item
, match
, name
, namelen
))
326 return MATCHED_EXACTLY
;
328 if (item
->nowildcard_len
< item
->len
&&
329 !git_fnmatch(item
, match
, name
,
330 item
->nowildcard_len
- prefix
))
331 return MATCHED_FNMATCH
;
333 /* Perform checks to see if "name" is a super set of the pathspec */
334 if (flags
& DO_MATCH_SUBMODULE
) {
335 /* name is a literal prefix of the pathspec */
336 if ((namelen
< matchlen
) &&
337 (match
[namelen
] == '/') &&
338 !ps_strncmp(item
, match
, name
, namelen
))
339 return MATCHED_RECURSIVELY
;
341 /* name" doesn't match up to the first wild character */
342 if (item
->nowildcard_len
< item
->len
&&
343 ps_strncmp(item
, match
, name
,
344 item
->nowildcard_len
- prefix
))
348 * Here is where we would perform a wildmatch to check if
349 * "name" can be matched as a directory (or a prefix) against
350 * the pathspec. Since wildmatch doesn't have this capability
351 * at the present we have to punt and say that it is a match,
352 * potentially returning a false positive
353 * The submodules themselves will be able to perform more
354 * accurate matching to determine if the pathspec matches.
356 return MATCHED_RECURSIVELY
;
363 * Given a name and a list of pathspecs, returns the nature of the
364 * closest (i.e. most specific) match of the name to any of the
367 * The caller typically calls this multiple times with the same
368 * pathspec and seen[] array but with different name/namelen
369 * (e.g. entries from the index) and is interested in seeing if and
370 * how each pathspec matches all the names it calls this function
371 * with. A mark is left in the seen[] array for each pathspec element
372 * indicating the closest type of match that element achieved, so if
373 * seen[n] remains zero after multiple invocations, that means the nth
374 * pathspec did not match any names, which could indicate that the
375 * user mistyped the nth pathspec.
377 static int do_match_pathspec(const struct pathspec
*ps
,
378 const char *name
, int namelen
,
379 int prefix
, char *seen
,
382 int i
, retval
= 0, exclude
= flags
& DO_MATCH_EXCLUDE
;
394 if (!ps
->recursive
||
395 !(ps
->magic
& PATHSPEC_MAXDEPTH
) ||
397 return MATCHED_RECURSIVELY
;
399 if (within_depth(name
, namelen
, 0, ps
->max_depth
))
400 return MATCHED_EXACTLY
;
408 for (i
= ps
->nr
- 1; i
>= 0; i
--) {
411 if ((!exclude
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
) ||
412 ( exclude
&& !(ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)))
415 if (seen
&& seen
[i
] == MATCHED_EXACTLY
)
418 * Make exclude patterns optional and never report
419 * "pathspec ':(exclude)foo' matches no files"
421 if (seen
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)
422 seen
[i
] = MATCHED_FNMATCH
;
423 how
= match_pathspec_item(ps
->items
+i
, prefix
, name
,
426 (ps
->magic
& PATHSPEC_MAXDEPTH
) &&
427 ps
->max_depth
!= -1 &&
428 how
&& how
!= MATCHED_FNMATCH
) {
429 int len
= ps
->items
[i
].len
;
430 if (name
[len
] == '/')
432 if (within_depth(name
+len
, namelen
-len
, 0, ps
->max_depth
))
433 how
= MATCHED_EXACTLY
;
440 if (seen
&& seen
[i
] < how
)
447 int match_pathspec(const struct pathspec
*ps
,
448 const char *name
, int namelen
,
449 int prefix
, char *seen
, int is_dir
)
451 int positive
, negative
;
452 unsigned flags
= is_dir
? DO_MATCH_DIRECTORY
: 0;
453 positive
= do_match_pathspec(ps
, name
, namelen
,
454 prefix
, seen
, flags
);
455 if (!(ps
->magic
& PATHSPEC_EXCLUDE
) || !positive
)
457 negative
= do_match_pathspec(ps
, name
, namelen
,
459 flags
| DO_MATCH_EXCLUDE
);
460 return negative
? 0 : positive
;
464 * Check if a submodule is a superset of the pathspec
466 int submodule_path_match(const struct pathspec
*ps
,
467 const char *submodule_name
,
470 int matched
= do_match_pathspec(ps
, submodule_name
,
471 strlen(submodule_name
),
478 int report_path_error(const char *ps_matched
,
479 const struct pathspec
*pathspec
,
483 * Make sure all pathspec matched; otherwise it is an error.
486 for (num
= 0; num
< pathspec
->nr
; num
++) {
487 int other
, found_dup
;
492 * The caller might have fed identical pathspec
493 * twice. Do not barf on such a mistake.
494 * FIXME: parse_pathspec should have eliminated
495 * duplicate pathspec.
497 for (found_dup
= other
= 0;
498 !found_dup
&& other
< pathspec
->nr
;
500 if (other
== num
|| !ps_matched
[other
])
502 if (!strcmp(pathspec
->items
[other
].original
,
503 pathspec
->items
[num
].original
))
505 * Ok, we have a match already.
512 error("pathspec '%s' did not match any file(s) known to git.",
513 pathspec
->items
[num
].original
);
520 * Return the length of the "simple" part of a path match limiter.
522 int simple_length(const char *match
)
527 unsigned char c
= *match
++;
529 if (c
== '\0' || is_glob_special(c
))
534 int no_wildcard(const char *string
)
536 return string
[simple_length(string
)] == '\0';
539 void parse_exclude_pattern(const char **pattern
,
544 const char *p
= *pattern
;
549 *flags
|= EXC_FLAG_NEGATIVE
;
553 if (len
&& p
[len
- 1] == '/') {
555 *flags
|= EXC_FLAG_MUSTBEDIR
;
557 for (i
= 0; i
< len
; i
++) {
562 *flags
|= EXC_FLAG_NODIR
;
563 *nowildcardlen
= simple_length(p
);
565 * we should have excluded the trailing slash from 'p' too,
566 * but that's one more allocation. Instead just make sure
567 * nowildcardlen does not exceed real patternlen
569 if (*nowildcardlen
> len
)
570 *nowildcardlen
= len
;
571 if (*p
== '*' && no_wildcard(p
+ 1))
572 *flags
|= EXC_FLAG_ENDSWITH
;
577 void add_exclude(const char *string
, const char *base
,
578 int baselen
, struct exclude_list
*el
, int srcpos
)
585 parse_exclude_pattern(&string
, &patternlen
, &flags
, &nowildcardlen
);
586 if (flags
& EXC_FLAG_MUSTBEDIR
) {
587 FLEXPTR_ALLOC_MEM(x
, pattern
, string
, patternlen
);
589 x
= xmalloc(sizeof(*x
));
592 x
->patternlen
= patternlen
;
593 x
->nowildcardlen
= nowildcardlen
;
595 x
->baselen
= baselen
;
598 ALLOC_GROW(el
->excludes
, el
->nr
+ 1, el
->alloc
);
599 el
->excludes
[el
->nr
++] = x
;
603 static void *read_skip_worktree_file_from_index(const struct index_state
*istate
,
604 const char *path
, size_t *size
,
605 struct sha1_stat
*sha1_stat
)
609 enum object_type type
;
613 pos
= index_name_pos(istate
, path
, len
);
616 if (!ce_skip_worktree(istate
->cache
[pos
]))
618 data
= read_sha1_file(istate
->cache
[pos
]->oid
.hash
, &type
, &sz
);
619 if (!data
|| type
!= OBJ_BLOB
) {
625 memset(&sha1_stat
->stat
, 0, sizeof(sha1_stat
->stat
));
626 hashcpy(sha1_stat
->sha1
, istate
->cache
[pos
]->oid
.hash
);
632 * Frees memory within el which was allocated for exclude patterns and
633 * the file buffer. Does not free el itself.
635 void clear_exclude_list(struct exclude_list
*el
)
639 for (i
= 0; i
< el
->nr
; i
++)
640 free(el
->excludes
[i
]);
644 memset(el
, 0, sizeof(*el
));
647 static void trim_trailing_spaces(char *buf
)
649 char *p
, *last_space
= NULL
;
651 for (p
= buf
; *p
; p
++)
671 * Given a subdirectory name and "dir" of the current directory,
672 * search the subdir in "dir" and return it, or create a new one if it
673 * does not exist in "dir".
675 * If "name" has the trailing slash, it'll be excluded in the search.
677 static struct untracked_cache_dir
*lookup_untracked(struct untracked_cache
*uc
,
678 struct untracked_cache_dir
*dir
,
679 const char *name
, int len
)
682 struct untracked_cache_dir
*d
;
685 if (len
&& name
[len
- 1] == '/')
689 while (last
> first
) {
690 int cmp
, next
= (last
+ first
) >> 1;
692 cmp
= strncmp(name
, d
->name
, len
);
693 if (!cmp
&& strlen(d
->name
) > len
)
705 FLEX_ALLOC_MEM(d
, name
, name
, len
);
707 ALLOC_GROW(dir
->dirs
, dir
->dirs_nr
+ 1, dir
->dirs_alloc
);
708 memmove(dir
->dirs
+ first
+ 1, dir
->dirs
+ first
,
709 (dir
->dirs_nr
- first
) * sizeof(*dir
->dirs
));
711 dir
->dirs
[first
] = d
;
715 static void do_invalidate_gitignore(struct untracked_cache_dir
*dir
)
719 dir
->untracked_nr
= 0;
720 for (i
= 0; i
< dir
->dirs_nr
; i
++)
721 do_invalidate_gitignore(dir
->dirs
[i
]);
724 static void invalidate_gitignore(struct untracked_cache
*uc
,
725 struct untracked_cache_dir
*dir
)
727 uc
->gitignore_invalidated
++;
728 do_invalidate_gitignore(dir
);
731 static void invalidate_directory(struct untracked_cache
*uc
,
732 struct untracked_cache_dir
*dir
)
735 uc
->dir_invalidated
++;
737 dir
->untracked_nr
= 0;
738 for (i
= 0; i
< dir
->dirs_nr
; i
++)
739 dir
->dirs
[i
]->recurse
= 0;
743 * Given a file with name "fname", read it (either from disk, or from
744 * an index if 'istate' is non-null), parse it and store the
745 * exclude rules in "el".
747 * If "ss" is not NULL, compute SHA-1 of the exclude file and fill
748 * stat data from disk (only valid if add_excludes returns zero). If
749 * ss_valid is non-zero, "ss" must contain good value as input.
751 static int add_excludes(const char *fname
, const char *base
, int baselen
,
752 struct exclude_list
*el
,
753 struct index_state
*istate
,
754 struct sha1_stat
*sha1_stat
)
757 int fd
, i
, lineno
= 1;
761 fd
= open(fname
, O_RDONLY
);
762 if (fd
< 0 || fstat(fd
, &st
) < 0) {
764 warn_on_fopen_errors(fname
);
768 (buf
= read_skip_worktree_file_from_index(istate
, fname
, &size
, sha1_stat
)) == NULL
)
774 if (buf
[size
-1] != '\n') {
775 buf
= xrealloc(buf
, st_add(size
, 1));
779 size
= xsize_t(st
.st_size
);
782 fill_stat_data(&sha1_stat
->stat
, &st
);
783 hashcpy(sha1_stat
->sha1
, EMPTY_BLOB_SHA1_BIN
);
784 sha1_stat
->valid
= 1;
789 buf
= xmallocz(size
);
790 if (read_in_full(fd
, buf
, size
) != size
) {
799 if (sha1_stat
->valid
&&
800 !match_stat_data_racy(istate
, &sha1_stat
->stat
, &st
))
801 ; /* no content change, ss->sha1 still good */
803 (pos
= index_name_pos(istate
, fname
, strlen(fname
))) >= 0 &&
804 !ce_stage(istate
->cache
[pos
]) &&
805 ce_uptodate(istate
->cache
[pos
]) &&
806 !would_convert_to_git(istate
, fname
))
807 hashcpy(sha1_stat
->sha1
,
808 istate
->cache
[pos
]->oid
.hash
);
810 hash_sha1_file(buf
, size
, "blob", sha1_stat
->sha1
);
811 fill_stat_data(&sha1_stat
->stat
, &st
);
812 sha1_stat
->valid
= 1;
818 if (skip_utf8_bom(&buf
, size
))
819 size
-= buf
- el
->filebuf
;
823 for (i
= 0; i
< size
; i
++) {
824 if (buf
[i
] == '\n') {
825 if (entry
!= buf
+ i
&& entry
[0] != '#') {
826 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
827 trim_trailing_spaces(entry
);
828 add_exclude(entry
, base
, baselen
, el
, lineno
);
837 int add_excludes_from_file_to_list(const char *fname
, const char *base
,
838 int baselen
, struct exclude_list
*el
,
839 struct index_state
*istate
)
841 return add_excludes(fname
, base
, baselen
, el
, istate
, NULL
);
844 struct exclude_list
*add_exclude_list(struct dir_struct
*dir
,
845 int group_type
, const char *src
)
847 struct exclude_list
*el
;
848 struct exclude_list_group
*group
;
850 group
= &dir
->exclude_list_group
[group_type
];
851 ALLOC_GROW(group
->el
, group
->nr
+ 1, group
->alloc
);
852 el
= &group
->el
[group
->nr
++];
853 memset(el
, 0, sizeof(*el
));
859 * Used to set up core.excludesfile and .git/info/exclude lists.
861 static void add_excludes_from_file_1(struct dir_struct
*dir
, const char *fname
,
862 struct sha1_stat
*sha1_stat
)
864 struct exclude_list
*el
;
866 * catch setup_standard_excludes() that's called before
867 * dir->untracked is assigned. That function behaves
868 * differently when dir->untracked is non-NULL.
871 dir
->unmanaged_exclude_files
++;
872 el
= add_exclude_list(dir
, EXC_FILE
, fname
);
873 if (add_excludes(fname
, "", 0, el
, NULL
, sha1_stat
) < 0)
874 die("cannot use %s as an exclude file", fname
);
877 void add_excludes_from_file(struct dir_struct
*dir
, const char *fname
)
879 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
880 add_excludes_from_file_1(dir
, fname
, NULL
);
883 int match_basename(const char *basename
, int basenamelen
,
884 const char *pattern
, int prefix
, int patternlen
,
887 if (prefix
== patternlen
) {
888 if (patternlen
== basenamelen
&&
889 !fspathncmp(pattern
, basename
, basenamelen
))
891 } else if (flags
& EXC_FLAG_ENDSWITH
) {
892 /* "*literal" matching against "fooliteral" */
893 if (patternlen
- 1 <= basenamelen
&&
894 !fspathncmp(pattern
+ 1,
895 basename
+ basenamelen
- (patternlen
- 1),
899 if (fnmatch_icase_mem(pattern
, patternlen
,
900 basename
, basenamelen
,
907 int match_pathname(const char *pathname
, int pathlen
,
908 const char *base
, int baselen
,
909 const char *pattern
, int prefix
, int patternlen
,
916 * match with FNM_PATHNAME; the pattern has base implicitly
919 if (*pattern
== '/') {
926 * baselen does not count the trailing slash. base[] may or
927 * may not end with a trailing slash though.
929 if (pathlen
< baselen
+ 1 ||
930 (baselen
&& pathname
[baselen
] != '/') ||
931 fspathncmp(pathname
, base
, baselen
))
934 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
935 name
= pathname
+ pathlen
- namelen
;
939 * if the non-wildcard part is longer than the
940 * remaining pathname, surely it cannot match.
942 if (prefix
> namelen
)
945 if (fspathncmp(pattern
, name
, prefix
))
948 patternlen
-= prefix
;
953 * If the whole pattern did not have a wildcard,
954 * then our prefix match is all we need; we
955 * do not need to call fnmatch at all.
957 if (!patternlen
&& !namelen
)
961 return fnmatch_icase_mem(pattern
, patternlen
,
967 * Scan the given exclude list in reverse to see whether pathname
968 * should be ignored. The first match (i.e. the last on the list), if
969 * any, determines the fate. Returns the exclude_list element which
970 * matched, or NULL for undecided.
972 static struct exclude
*last_exclude_matching_from_list(const char *pathname
,
974 const char *basename
,
976 struct exclude_list
*el
,
977 struct index_state
*istate
)
979 struct exclude
*exc
= NULL
; /* undecided */
983 return NULL
; /* undefined */
985 for (i
= el
->nr
- 1; 0 <= i
; i
--) {
986 struct exclude
*x
= el
->excludes
[i
];
987 const char *exclude
= x
->pattern
;
988 int prefix
= x
->nowildcardlen
;
990 if (x
->flags
& EXC_FLAG_MUSTBEDIR
) {
991 if (*dtype
== DT_UNKNOWN
)
992 *dtype
= get_dtype(NULL
, istate
, pathname
, pathlen
);
993 if (*dtype
!= DT_DIR
)
997 if (x
->flags
& EXC_FLAG_NODIR
) {
998 if (match_basename(basename
,
999 pathlen
- (basename
- pathname
),
1000 exclude
, prefix
, x
->patternlen
,
1008 assert(x
->baselen
== 0 || x
->base
[x
->baselen
- 1] == '/');
1009 if (match_pathname(pathname
, pathlen
,
1010 x
->base
, x
->baselen
? x
->baselen
- 1 : 0,
1011 exclude
, prefix
, x
->patternlen
, x
->flags
)) {
1020 * Scan the list and let the last match determine the fate.
1021 * Return 1 for exclude, 0 for include and -1 for undecided.
1023 int is_excluded_from_list(const char *pathname
,
1024 int pathlen
, const char *basename
, int *dtype
,
1025 struct exclude_list
*el
, struct index_state
*istate
)
1027 struct exclude
*exclude
;
1028 exclude
= last_exclude_matching_from_list(pathname
, pathlen
, basename
,
1031 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1032 return -1; /* undecided */
1035 static struct exclude
*last_exclude_matching_from_lists(struct dir_struct
*dir
,
1036 struct index_state
*istate
,
1037 const char *pathname
, int pathlen
, const char *basename
,
1041 struct exclude_list_group
*group
;
1042 struct exclude
*exclude
;
1043 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
1044 group
= &dir
->exclude_list_group
[i
];
1045 for (j
= group
->nr
- 1; j
>= 0; j
--) {
1046 exclude
= last_exclude_matching_from_list(
1047 pathname
, pathlen
, basename
, dtype_p
,
1048 &group
->el
[j
], istate
);
1057 * Loads the per-directory exclude list for the substring of base
1058 * which has a char length of baselen.
1060 static void prep_exclude(struct dir_struct
*dir
,
1061 struct index_state
*istate
,
1062 const char *base
, int baselen
)
1064 struct exclude_list_group
*group
;
1065 struct exclude_list
*el
;
1066 struct exclude_stack
*stk
= NULL
;
1067 struct untracked_cache_dir
*untracked
;
1070 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1073 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1074 * which originate from directories not in the prefix of the
1075 * path being checked.
1077 while ((stk
= dir
->exclude_stack
) != NULL
) {
1078 if (stk
->baselen
<= baselen
&&
1079 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1081 el
= &group
->el
[dir
->exclude_stack
->exclude_ix
];
1082 dir
->exclude_stack
= stk
->prev
;
1083 dir
->exclude
= NULL
;
1084 free((char *)el
->src
); /* see strbuf_detach() below */
1085 clear_exclude_list(el
);
1090 /* Skip traversing into sub directories if the parent is excluded */
1095 * Lazy initialization. All call sites currently just
1096 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1097 * them seems lots of work for little benefit.
1099 if (!dir
->basebuf
.buf
)
1100 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1102 /* Read from the parent directories and push them down. */
1103 current
= stk
? stk
->baselen
: -1;
1104 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1106 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1110 while (current
< baselen
) {
1112 struct sha1_stat sha1_stat
;
1114 stk
= xcalloc(1, sizeof(*stk
));
1119 cp
= strchr(base
+ current
+ 1, '/');
1121 die("oops in prep_exclude");
1124 lookup_untracked(dir
->untracked
, untracked
,
1126 cp
- base
- current
);
1128 stk
->prev
= dir
->exclude_stack
;
1129 stk
->baselen
= cp
- base
;
1130 stk
->exclude_ix
= group
->nr
;
1131 stk
->ucd
= untracked
;
1132 el
= add_exclude_list(dir
, EXC_DIRS
, NULL
);
1133 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1134 assert(stk
->baselen
== dir
->basebuf
.len
);
1136 /* Abort if the directory is excluded */
1139 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1140 dir
->exclude
= last_exclude_matching_from_lists(dir
,
1142 dir
->basebuf
.buf
, stk
->baselen
- 1,
1143 dir
->basebuf
.buf
+ current
, &dt
);
1144 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1146 dir
->exclude
->flags
& EXC_FLAG_NEGATIVE
)
1147 dir
->exclude
= NULL
;
1149 dir
->exclude_stack
= stk
;
1154 /* Try to read per-directory file */
1155 hashclr(sha1_stat
.sha1
);
1156 sha1_stat
.valid
= 0;
1157 if (dir
->exclude_per_dir
&&
1159 * If we know that no files have been added in
1160 * this directory (i.e. valid_cached_dir() has
1161 * been executed and set untracked->valid) ..
1163 (!untracked
|| !untracked
->valid
||
1165 * .. and .gitignore does not exist before
1166 * (i.e. null exclude_sha1). Then we can skip
1167 * loading .gitignore, which would result in
1170 !is_null_sha1(untracked
->exclude_sha1
))) {
1172 * dir->basebuf gets reused by the traversal, but we
1173 * need fname to remain unchanged to ensure the src
1174 * member of each struct exclude correctly
1175 * back-references its source file. Other invocations
1176 * of add_exclude_list provide stable strings, so we
1177 * strbuf_detach() and free() here in the caller.
1179 struct strbuf sb
= STRBUF_INIT
;
1180 strbuf_addbuf(&sb
, &dir
->basebuf
);
1181 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1182 el
->src
= strbuf_detach(&sb
, NULL
);
1183 add_excludes(el
->src
, el
->src
, stk
->baselen
, el
, istate
,
1184 untracked
? &sha1_stat
: NULL
);
1187 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1188 * will first be called in valid_cached_dir() then maybe many
1189 * times more in last_exclude_matching(). When the cache is
1190 * used, last_exclude_matching() will not be called and
1191 * reading .gitignore content will be a waste.
1193 * So when it's called by valid_cached_dir() and we can get
1194 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1195 * modified on work tree), we could delay reading the
1196 * .gitignore content until we absolutely need it in
1197 * last_exclude_matching(). Be careful about ignore rule
1198 * order, though, if you do that.
1201 hashcmp(sha1_stat
.sha1
, untracked
->exclude_sha1
)) {
1202 invalidate_gitignore(dir
->untracked
, untracked
);
1203 hashcpy(untracked
->exclude_sha1
, sha1_stat
.sha1
);
1205 dir
->exclude_stack
= stk
;
1206 current
= stk
->baselen
;
1208 strbuf_setlen(&dir
->basebuf
, baselen
);
1212 * Loads the exclude lists for the directory containing pathname, then
1213 * scans all exclude lists to determine whether pathname is excluded.
1214 * Returns the exclude_list element which matched, or NULL for
1217 struct exclude
*last_exclude_matching(struct dir_struct
*dir
,
1218 struct index_state
*istate
,
1219 const char *pathname
,
1222 int pathlen
= strlen(pathname
);
1223 const char *basename
= strrchr(pathname
, '/');
1224 basename
= (basename
) ? basename
+1 : pathname
;
1226 prep_exclude(dir
, istate
, pathname
, basename
-pathname
);
1229 return dir
->exclude
;
1231 return last_exclude_matching_from_lists(dir
, istate
, pathname
, pathlen
,
1236 * Loads the exclude lists for the directory containing pathname, then
1237 * scans all exclude lists to determine whether pathname is excluded.
1238 * Returns 1 if true, otherwise 0.
1240 int is_excluded(struct dir_struct
*dir
, struct index_state
*istate
,
1241 const char *pathname
, int *dtype_p
)
1243 struct exclude
*exclude
=
1244 last_exclude_matching(dir
, istate
, pathname
, dtype_p
);
1246 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1250 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1252 struct dir_entry
*ent
;
1254 FLEX_ALLOC_MEM(ent
, name
, pathname
, len
);
1259 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
,
1260 struct index_state
*istate
,
1261 const char *pathname
, int len
)
1263 if (index_file_exists(istate
, pathname
, len
, ignore_case
))
1266 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1267 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1270 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
,
1271 struct index_state
*istate
,
1272 const char *pathname
, int len
)
1274 if (!index_name_is_other(istate
, pathname
, len
))
1277 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1278 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1282 index_nonexistent
= 0,
1288 * Do not use the alphabetically sorted index to look up
1289 * the directory name; instead, use the case insensitive
1292 static enum exist_status
directory_exists_in_index_icase(struct index_state
*istate
,
1293 const char *dirname
, int len
)
1295 struct cache_entry
*ce
;
1297 if (index_dir_exists(istate
, dirname
, len
))
1298 return index_directory
;
1300 ce
= index_file_exists(istate
, dirname
, len
, ignore_case
);
1301 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1302 return index_gitdir
;
1304 return index_nonexistent
;
1308 * The index sorts alphabetically by entry name, which
1309 * means that a gitlink sorts as '\0' at the end, while
1310 * a directory (which is defined not as an entry, but as
1311 * the files it contains) will sort with the '/' at the
1314 static enum exist_status
directory_exists_in_index(struct index_state
*istate
,
1315 const char *dirname
, int len
)
1320 return directory_exists_in_index_icase(istate
, dirname
, len
);
1322 pos
= index_name_pos(istate
, dirname
, len
);
1325 while (pos
< istate
->cache_nr
) {
1326 const struct cache_entry
*ce
= istate
->cache
[pos
++];
1327 unsigned char endchar
;
1329 if (strncmp(ce
->name
, dirname
, len
))
1331 endchar
= ce
->name
[len
];
1335 return index_directory
;
1336 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1337 return index_gitdir
;
1339 return index_nonexistent
;
1343 * When we find a directory when traversing the filesystem, we
1344 * have three distinct cases:
1347 * - see it as a directory
1350 * and which one we choose depends on a combination of existing
1351 * git index contents and the flags passed into the directory
1352 * traversal routine.
1354 * Case 1: If we *already* have entries in the index under that
1355 * directory name, we always recurse into the directory to see
1358 * Case 2: If we *already* have that directory name as a gitlink,
1359 * we always continue to see it as a gitlink, regardless of whether
1360 * there is an actual git directory there or not (it might not
1361 * be checked out as a subproject!)
1363 * Case 3: if we didn't have it in the index previously, we
1364 * have a few sub-cases:
1366 * (a) if "show_other_directories" is true, we show it as
1367 * just a directory, unless "hide_empty_directories" is
1368 * also true, in which case we need to check if it contains any
1369 * untracked and / or ignored files.
1370 * (b) if it looks like a git directory, and we don't have
1371 * 'no_gitlinks' set we treat it as a gitlink, and show it
1373 * (c) otherwise, we recurse into it.
1375 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1376 struct index_state
*istate
,
1377 struct untracked_cache_dir
*untracked
,
1378 const char *dirname
, int len
, int baselen
, int exclude
,
1379 const struct pathspec
*pathspec
)
1381 /* The "len-1" is to strip the final '/' */
1382 switch (directory_exists_in_index(istate
, dirname
, len
-1)) {
1383 case index_directory
:
1384 return path_recurse
;
1389 case index_nonexistent
:
1390 if (dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)
1392 if (!(dir
->flags
& DIR_NO_GITLINKS
)) {
1393 struct object_id oid
;
1394 if (resolve_gitlink_ref(dirname
, "HEAD", &oid
) == 0)
1395 return path_untracked
;
1397 return path_recurse
;
1400 /* This is the "show_other_directories" case */
1402 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1403 return exclude
? path_excluded
: path_untracked
;
1405 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1406 dirname
+ baselen
, len
- baselen
);
1409 * If this is an excluded directory, then we only need to check if
1410 * the directory contains any files.
1412 return read_directory_recursive(dir
, istate
, dirname
, len
,
1413 untracked
, 1, exclude
, pathspec
);
1417 * This is an inexact early pruning of any recursive directory
1418 * reading - if the path cannot possibly be in the pathspec,
1419 * return true, and we'll skip it early.
1421 static int simplify_away(const char *path
, int pathlen
,
1422 const struct pathspec
*pathspec
)
1426 if (!pathspec
|| !pathspec
->nr
)
1429 GUARD_PATHSPEC(pathspec
,
1438 for (i
= 0; i
< pathspec
->nr
; i
++) {
1439 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1440 int len
= item
->nowildcard_len
;
1444 if (!ps_strncmp(item
, item
->match
, path
, len
))
1452 * This function tells us whether an excluded path matches a
1453 * list of "interesting" pathspecs. That is, whether a path matched
1454 * by any of the pathspecs could possibly be ignored by excluding
1455 * the specified path. This can happen if:
1457 * 1. the path is mentioned explicitly in the pathspec
1459 * 2. the path is a directory prefix of some element in the
1462 static int exclude_matches_pathspec(const char *path
, int pathlen
,
1463 const struct pathspec
*pathspec
)
1467 if (!pathspec
|| !pathspec
->nr
)
1470 GUARD_PATHSPEC(pathspec
,
1478 for (i
= 0; i
< pathspec
->nr
; i
++) {
1479 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1480 int len
= item
->nowildcard_len
;
1482 if (len
== pathlen
&&
1483 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1485 if (len
> pathlen
&&
1486 item
->match
[pathlen
] == '/' &&
1487 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1493 static int get_index_dtype(struct index_state
*istate
,
1494 const char *path
, int len
)
1497 const struct cache_entry
*ce
;
1499 ce
= index_file_exists(istate
, path
, len
, 0);
1501 if (!ce_uptodate(ce
))
1503 if (S_ISGITLINK(ce
->ce_mode
))
1506 * Nobody actually cares about the
1507 * difference between DT_LNK and DT_REG
1512 /* Try to look it up as a directory */
1513 pos
= index_name_pos(istate
, path
, len
);
1517 while (pos
< istate
->cache_nr
) {
1518 ce
= istate
->cache
[pos
++];
1519 if (strncmp(ce
->name
, path
, len
))
1521 if (ce
->name
[len
] > '/')
1523 if (ce
->name
[len
] < '/')
1525 if (!ce_uptodate(ce
))
1526 break; /* continue? */
1532 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
1533 const char *path
, int len
)
1535 int dtype
= de
? DTYPE(de
) : DT_UNKNOWN
;
1538 if (dtype
!= DT_UNKNOWN
)
1540 dtype
= get_index_dtype(istate
, path
, len
);
1541 if (dtype
!= DT_UNKNOWN
)
1543 if (lstat(path
, &st
))
1545 if (S_ISREG(st
.st_mode
))
1547 if (S_ISDIR(st
.st_mode
))
1549 if (S_ISLNK(st
.st_mode
))
1554 static enum path_treatment
treat_one_path(struct dir_struct
*dir
,
1555 struct untracked_cache_dir
*untracked
,
1556 struct index_state
*istate
,
1557 struct strbuf
*path
,
1559 const struct pathspec
*pathspec
,
1560 int dtype
, struct dirent
*de
)
1563 int has_path_in_index
= !!index_file_exists(istate
, path
->buf
, path
->len
, ignore_case
);
1565 if (dtype
== DT_UNKNOWN
)
1566 dtype
= get_dtype(de
, istate
, path
->buf
, path
->len
);
1568 /* Always exclude indexed files */
1569 if (dtype
!= DT_DIR
&& has_path_in_index
)
1573 * When we are looking at a directory P in the working tree,
1574 * there are three cases:
1576 * (1) P exists in the index. Everything inside the directory P in
1577 * the working tree needs to go when P is checked out from the
1580 * (2) P does not exist in the index, but there is P/Q in the index.
1581 * We know P will stay a directory when we check out the contents
1582 * of the index, but we do not know yet if there is a directory
1583 * P/Q in the working tree to be killed, so we need to recurse.
1585 * (3) P does not exist in the index, and there is no P/Q in the index
1586 * to require P to be a directory, either. Only in this case, we
1587 * know that everything inside P will not be killed without
1590 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
1591 (dtype
== DT_DIR
) &&
1592 !has_path_in_index
&&
1593 (directory_exists_in_index(istate
, path
->buf
, path
->len
) == index_nonexistent
))
1596 exclude
= is_excluded(dir
, istate
, path
->buf
, &dtype
);
1599 * Excluded? If we don't explicitly want to show
1600 * ignored files, ignore it
1602 if (exclude
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
1603 return path_excluded
;
1609 strbuf_addch(path
, '/');
1610 return treat_directory(dir
, istate
, untracked
, path
->buf
, path
->len
,
1611 baselen
, exclude
, pathspec
);
1614 return exclude
? path_excluded
: path_untracked
;
1618 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
1619 struct untracked_cache_dir
*untracked
,
1620 struct cached_dir
*cdir
,
1621 struct index_state
*istate
,
1622 struct strbuf
*path
,
1624 const struct pathspec
*pathspec
)
1626 strbuf_setlen(path
, baselen
);
1628 strbuf_addstr(path
, cdir
->file
);
1629 return path_untracked
;
1631 strbuf_addstr(path
, cdir
->ucd
->name
);
1632 /* treat_one_path() does this before it calls treat_directory() */
1633 strbuf_complete(path
, '/');
1634 if (cdir
->ucd
->check_only
)
1636 * check_only is set as a result of treat_directory() getting
1637 * to its bottom. Verify again the same set of directories
1638 * with check_only set.
1640 return read_directory_recursive(dir
, istate
, path
->buf
, path
->len
,
1641 cdir
->ucd
, 1, 0, pathspec
);
1643 * We get path_recurse in the first run when
1644 * directory_exists_in_index() returns index_nonexistent. We
1645 * are sure that new changes in the index does not impact the
1646 * outcome. Return now.
1648 return path_recurse
;
1651 static enum path_treatment
treat_path(struct dir_struct
*dir
,
1652 struct untracked_cache_dir
*untracked
,
1653 struct cached_dir
*cdir
,
1654 struct index_state
*istate
,
1655 struct strbuf
*path
,
1657 const struct pathspec
*pathspec
)
1660 struct dirent
*de
= cdir
->de
;
1663 return treat_path_fast(dir
, untracked
, cdir
, istate
, path
,
1665 if (is_dot_or_dotdot(de
->d_name
) || !strcmp(de
->d_name
, ".git"))
1667 strbuf_setlen(path
, baselen
);
1668 strbuf_addstr(path
, de
->d_name
);
1669 if (simplify_away(path
->buf
, path
->len
, pathspec
))
1673 return treat_one_path(dir
, untracked
, istate
, path
, baselen
, pathspec
, dtype
, de
);
1676 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
1680 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
1681 dir
->untracked_alloc
);
1682 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
1685 static int valid_cached_dir(struct dir_struct
*dir
,
1686 struct untracked_cache_dir
*untracked
,
1687 struct index_state
*istate
,
1688 struct strbuf
*path
,
1696 if (stat(path
->len
? path
->buf
: ".", &st
)) {
1697 invalidate_directory(dir
->untracked
, untracked
);
1698 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
1701 if (!untracked
->valid
||
1702 match_stat_data_racy(istate
, &untracked
->stat_data
, &st
)) {
1703 if (untracked
->valid
)
1704 invalidate_directory(dir
->untracked
, untracked
);
1705 fill_stat_data(&untracked
->stat_data
, &st
);
1709 if (untracked
->check_only
!= !!check_only
) {
1710 invalidate_directory(dir
->untracked
, untracked
);
1715 * prep_exclude will be called eventually on this directory,
1716 * but it's called much later in last_exclude_matching(). We
1717 * need it now to determine the validity of the cache for this
1718 * path. The next calls will be nearly no-op, the way
1719 * prep_exclude() is designed.
1721 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
1722 strbuf_addch(path
, '/');
1723 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
1724 strbuf_setlen(path
, path
->len
- 1);
1726 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
1728 /* hopefully prep_exclude() haven't invalidated this entry... */
1729 return untracked
->valid
;
1732 static int open_cached_dir(struct cached_dir
*cdir
,
1733 struct dir_struct
*dir
,
1734 struct untracked_cache_dir
*untracked
,
1735 struct index_state
*istate
,
1736 struct strbuf
*path
,
1739 memset(cdir
, 0, sizeof(*cdir
));
1740 cdir
->untracked
= untracked
;
1741 if (valid_cached_dir(dir
, untracked
, istate
, path
, check_only
))
1743 cdir
->fdir
= opendir(path
->len
? path
->buf
: ".");
1745 dir
->untracked
->dir_opened
++;
1751 static int read_cached_dir(struct cached_dir
*cdir
)
1754 cdir
->de
= readdir(cdir
->fdir
);
1759 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
1760 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
1770 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
1771 struct untracked_cache_dir
*d
= cdir
->untracked
;
1772 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
1778 static void close_cached_dir(struct cached_dir
*cdir
)
1781 closedir(cdir
->fdir
);
1783 * We have gone through this directory and found no untracked
1784 * entries. Mark it valid.
1786 if (cdir
->untracked
) {
1787 cdir
->untracked
->valid
= 1;
1788 cdir
->untracked
->recurse
= 1;
1793 * Read a directory tree. We currently ignore anything but
1794 * directories, regular files and symlinks. That's because git
1795 * doesn't handle them at all yet. Maybe that will change some
1798 * Also, we ignore the name ".git" (even if it is not a directory).
1799 * That likely will not change.
1801 * If 'stop_at_first_file' is specified, 'path_excluded' is returned
1802 * to signal that a file was found. This is the least significant value that
1803 * indicates that a file was encountered that does not depend on the order of
1804 * whether an untracked or exluded path was encountered first.
1806 * Returns the most significant path_treatment value encountered in the scan.
1807 * If 'stop_at_first_file' is specified, `path_excluded` is the most
1808 * significant path_treatment value that will be returned.
1811 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
1812 struct index_state
*istate
, const char *base
, int baselen
,
1813 struct untracked_cache_dir
*untracked
, int check_only
,
1814 int stop_at_first_file
, const struct pathspec
*pathspec
)
1816 struct cached_dir cdir
;
1817 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
1818 struct strbuf path
= STRBUF_INIT
;
1820 strbuf_add(&path
, base
, baselen
);
1822 if (open_cached_dir(&cdir
, dir
, untracked
, istate
, &path
, check_only
))
1826 untracked
->check_only
= !!check_only
;
1828 while (!read_cached_dir(&cdir
)) {
1829 /* check how the file or directory should be treated */
1830 state
= treat_path(dir
, untracked
, &cdir
, istate
, &path
,
1833 if (state
> dir_state
)
1836 /* recurse into subdir if instructed by treat_path */
1837 if ((state
== path_recurse
) ||
1838 ((state
== path_untracked
) &&
1839 (dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1840 (get_dtype(cdir
.de
, istate
, path
.buf
, path
.len
) == DT_DIR
))) {
1841 struct untracked_cache_dir
*ud
;
1842 ud
= lookup_untracked(dir
->untracked
, untracked
,
1844 path
.len
- baselen
);
1846 read_directory_recursive(dir
, istate
, path
.buf
,
1848 check_only
, stop_at_first_file
, pathspec
);
1849 if (subdir_state
> dir_state
)
1850 dir_state
= subdir_state
;
1854 if (stop_at_first_file
) {
1856 * If stopping at first file, then
1857 * signal that a file was found by
1858 * returning `path_excluded`. This is
1859 * to return a consistent value
1860 * regardless of whether an ignored or
1861 * excluded file happened to be
1864 * In current usage, the
1865 * `stop_at_first_file` is passed when
1866 * an ancestor directory has matched
1867 * an exclude pattern, so any found
1868 * files will be excluded.
1870 if (dir_state
>= path_excluded
) {
1871 dir_state
= path_excluded
;
1876 /* abort early if maximum state has been reached */
1877 if (dir_state
== path_untracked
) {
1879 add_untracked(untracked
, path
.buf
+ baselen
);
1882 /* skip the dir_add_* part */
1886 /* add the path to the appropriate result list */
1889 if (dir
->flags
& DIR_SHOW_IGNORED
)
1890 dir_add_name(dir
, istate
, path
.buf
, path
.len
);
1891 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
1892 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
1893 exclude_matches_pathspec(path
.buf
, path
.len
,
1895 dir_add_ignored(dir
, istate
, path
.buf
, path
.len
);
1898 case path_untracked
:
1899 if (dir
->flags
& DIR_SHOW_IGNORED
)
1901 dir_add_name(dir
, istate
, path
.buf
, path
.len
);
1903 add_untracked(untracked
, path
.buf
+ baselen
);
1910 close_cached_dir(&cdir
);
1912 strbuf_release(&path
);
1917 int cmp_dir_entry(const void *p1
, const void *p2
)
1919 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
1920 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
1922 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
1925 /* check if *out lexically strictly contains *in */
1926 int check_dir_entry_contains(const struct dir_entry
*out
, const struct dir_entry
*in
)
1928 return (out
->len
< in
->len
) &&
1929 (out
->name
[out
->len
- 1] == '/') &&
1930 !memcmp(out
->name
, in
->name
, out
->len
);
1933 static int treat_leading_path(struct dir_struct
*dir
,
1934 struct index_state
*istate
,
1935 const char *path
, int len
,
1936 const struct pathspec
*pathspec
)
1938 struct strbuf sb
= STRBUF_INIT
;
1939 int baselen
, rc
= 0;
1941 int old_flags
= dir
->flags
;
1943 while (len
&& path
[len
- 1] == '/')
1948 dir
->flags
&= ~DIR_SHOW_OTHER_DIRECTORIES
;
1950 cp
= path
+ baselen
+ !!baselen
;
1951 cp
= memchr(cp
, '/', path
+ len
- cp
);
1955 baselen
= cp
- path
;
1956 strbuf_setlen(&sb
, 0);
1957 strbuf_add(&sb
, path
, baselen
);
1958 if (!is_directory(sb
.buf
))
1960 if (simplify_away(sb
.buf
, sb
.len
, pathspec
))
1962 if (treat_one_path(dir
, NULL
, istate
, &sb
, baselen
, pathspec
,
1963 DT_DIR
, NULL
) == path_none
)
1964 break; /* do not recurse into it */
1965 if (len
<= baselen
) {
1967 break; /* finished checking */
1970 strbuf_release(&sb
);
1971 dir
->flags
= old_flags
;
1975 static const char *get_ident_string(void)
1977 static struct strbuf sb
= STRBUF_INIT
;
1982 if (uname(&uts
) < 0)
1983 die_errno(_("failed to get kernel name and information"));
1984 strbuf_addf(&sb
, "Location %s, system %s", get_git_work_tree(),
1989 static int ident_in_untracked(const struct untracked_cache
*uc
)
1992 * Previous git versions may have saved many NUL separated
1993 * strings in the "ident" field, but it is insane to manage
1994 * many locations, so just take care of the first one.
1997 return !strcmp(uc
->ident
.buf
, get_ident_string());
2000 static void set_untracked_ident(struct untracked_cache
*uc
)
2002 strbuf_reset(&uc
->ident
);
2003 strbuf_addstr(&uc
->ident
, get_ident_string());
2006 * This strbuf used to contain a list of NUL separated
2007 * strings, so save NUL too for backward compatibility.
2009 strbuf_addch(&uc
->ident
, 0);
2012 static void new_untracked_cache(struct index_state
*istate
)
2014 struct untracked_cache
*uc
= xcalloc(1, sizeof(*uc
));
2015 strbuf_init(&uc
->ident
, 100);
2016 uc
->exclude_per_dir
= ".gitignore";
2017 /* should be the same flags used by git-status */
2018 uc
->dir_flags
= DIR_SHOW_OTHER_DIRECTORIES
| DIR_HIDE_EMPTY_DIRECTORIES
;
2019 set_untracked_ident(uc
);
2020 istate
->untracked
= uc
;
2021 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2024 void add_untracked_cache(struct index_state
*istate
)
2026 if (!istate
->untracked
) {
2027 new_untracked_cache(istate
);
2029 if (!ident_in_untracked(istate
->untracked
)) {
2030 free_untracked_cache(istate
->untracked
);
2031 new_untracked_cache(istate
);
2036 void remove_untracked_cache(struct index_state
*istate
)
2038 if (istate
->untracked
) {
2039 free_untracked_cache(istate
->untracked
);
2040 istate
->untracked
= NULL
;
2041 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2045 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
2047 const struct pathspec
*pathspec
)
2049 struct untracked_cache_dir
*root
;
2051 if (!dir
->untracked
|| getenv("GIT_DISABLE_UNTRACKED_CACHE"))
2055 * We only support $GIT_DIR/info/exclude and core.excludesfile
2056 * as the global ignore rule files. Any other additions
2057 * (e.g. from command line) invalidate the cache. This
2058 * condition also catches running setup_standard_excludes()
2059 * before setting dir->untracked!
2061 if (dir
->unmanaged_exclude_files
)
2065 * Optimize for the main use case only: whole-tree git
2066 * status. More work involved in treat_leading_path() if we
2067 * use cache on just a subset of the worktree. pathspec
2068 * support could make the matter even worse.
2070 if (base_len
|| (pathspec
&& pathspec
->nr
))
2073 /* Different set of flags may produce different results */
2074 if (dir
->flags
!= dir
->untracked
->dir_flags
||
2076 * See treat_directory(), case index_nonexistent. Without
2077 * this flag, we may need to also cache .git file content
2078 * for the resolve_gitlink_ref() call, which we don't.
2080 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
2081 /* We don't support collecting ignore files */
2082 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
2083 DIR_COLLECT_IGNORED
)))
2087 * If we use .gitignore in the cache and now you change it to
2088 * .gitexclude, everything will go wrong.
2090 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
2091 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
2095 * EXC_CMDL is not considered in the cache. If people set it,
2098 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
2101 if (!ident_in_untracked(dir
->untracked
)) {
2102 warning(_("Untracked cache is disabled on this system or location."));
2106 if (!dir
->untracked
->root
) {
2107 const int len
= sizeof(*dir
->untracked
->root
);
2108 dir
->untracked
->root
= xmalloc(len
);
2109 memset(dir
->untracked
->root
, 0, len
);
2112 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2113 root
= dir
->untracked
->root
;
2114 if (hashcmp(dir
->ss_info_exclude
.sha1
,
2115 dir
->untracked
->ss_info_exclude
.sha1
)) {
2116 invalidate_gitignore(dir
->untracked
, root
);
2117 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2119 if (hashcmp(dir
->ss_excludes_file
.sha1
,
2120 dir
->untracked
->ss_excludes_file
.sha1
)) {
2121 invalidate_gitignore(dir
->untracked
, root
);
2122 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2125 /* Make sure this directory is not dropped out at saving phase */
2130 int read_directory(struct dir_struct
*dir
, struct index_state
*istate
,
2131 const char *path
, int len
, const struct pathspec
*pathspec
)
2133 struct untracked_cache_dir
*untracked
;
2135 if (has_symlink_leading_path(path
, len
))
2138 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2141 * make sure untracked cache code path is disabled,
2142 * e.g. prep_exclude()
2144 dir
->untracked
= NULL
;
2145 if (!len
|| treat_leading_path(dir
, istate
, path
, len
, pathspec
))
2146 read_directory_recursive(dir
, istate
, path
, len
, untracked
, 0, 0, pathspec
);
2147 QSORT(dir
->entries
, dir
->nr
, cmp_dir_entry
);
2148 QSORT(dir
->ignored
, dir
->ignored_nr
, cmp_dir_entry
);
2151 * If DIR_SHOW_IGNORED_TOO is set, read_directory_recursive() will
2152 * also pick up untracked contents of untracked dirs; by default
2153 * we discard these, but given DIR_KEEP_UNTRACKED_CONTENTS we do not.
2155 if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
2156 !(dir
->flags
& DIR_KEEP_UNTRACKED_CONTENTS
)) {
2159 /* remove from dir->entries untracked contents of untracked dirs */
2160 for (i
= j
= 0; j
< dir
->nr
; j
++) {
2162 check_dir_entry_contains(dir
->entries
[i
- 1], dir
->entries
[j
])) {
2163 FREE_AND_NULL(dir
->entries
[j
]);
2165 dir
->entries
[i
++] = dir
->entries
[j
];
2172 if (dir
->untracked
) {
2173 static struct trace_key trace_untracked_stats
= TRACE_KEY_INIT(UNTRACKED_STATS
);
2174 trace_printf_key(&trace_untracked_stats
,
2175 "node creation: %u\n"
2176 "gitignore invalidation: %u\n"
2177 "directory invalidation: %u\n"
2179 dir
->untracked
->dir_created
,
2180 dir
->untracked
->gitignore_invalidated
,
2181 dir
->untracked
->dir_invalidated
,
2182 dir
->untracked
->dir_opened
);
2183 if (dir
->untracked
== istate
->untracked
&&
2184 (dir
->untracked
->dir_opened
||
2185 dir
->untracked
->gitignore_invalidated
||
2186 dir
->untracked
->dir_invalidated
))
2187 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2188 if (dir
->untracked
!= istate
->untracked
) {
2189 FREE_AND_NULL(dir
->untracked
);
2195 int file_exists(const char *f
)
2198 return lstat(f
, &sb
) == 0;
2201 static int cmp_icase(char a
, char b
)
2206 return toupper(a
) - toupper(b
);
2211 * Given two normalized paths (a trailing slash is ok), if subdir is
2212 * outside dir, return -1. Otherwise return the offset in subdir that
2213 * can be used as relative path to dir.
2215 int dir_inside_of(const char *subdir
, const char *dir
)
2219 assert(dir
&& subdir
&& *dir
&& *subdir
);
2221 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2227 /* hel[p]/me vs hel[l]/yeah */
2228 if (*dir
&& *subdir
)
2232 return !*dir
? offset
: -1; /* same dir */
2234 /* foo/[b]ar vs foo/[] */
2235 if (is_dir_sep(dir
[-1]))
2236 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2238 /* foo[/]bar vs foo[] */
2239 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2242 int is_inside_dir(const char *dir
)
2251 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2256 int is_empty_dir(const char *path
)
2258 DIR *dir
= opendir(path
);
2265 while ((e
= readdir(dir
)) != NULL
)
2266 if (!is_dot_or_dotdot(e
->d_name
)) {
2275 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2279 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2280 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2281 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2282 struct object_id submodule_head
;
2284 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2285 !resolve_gitlink_ref(path
->buf
, "HEAD", &submodule_head
)) {
2286 /* Do not descend and nuke a nested git work tree. */
2292 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2293 dir
= opendir(path
->buf
);
2295 if (errno
== ENOENT
)
2296 return keep_toplevel
? -1 : 0;
2297 else if (errno
== EACCES
&& !keep_toplevel
)
2299 * An empty dir could be removable even if it
2302 return rmdir(path
->buf
);
2306 strbuf_complete(path
, '/');
2309 while ((e
= readdir(dir
)) != NULL
) {
2311 if (is_dot_or_dotdot(e
->d_name
))
2314 strbuf_setlen(path
, len
);
2315 strbuf_addstr(path
, e
->d_name
);
2316 if (lstat(path
->buf
, &st
)) {
2317 if (errno
== ENOENT
)
2319 * file disappeared, which is what we
2324 } else if (S_ISDIR(st
.st_mode
)) {
2325 if (!remove_dir_recurse(path
, flag
, &kept_down
))
2326 continue; /* happy */
2327 } else if (!only_empty
&&
2328 (!unlink(path
->buf
) || errno
== ENOENT
)) {
2329 continue; /* happy, too */
2332 /* path too long, stat fails, or non-directory still exists */
2338 strbuf_setlen(path
, original_len
);
2339 if (!ret
&& !keep_toplevel
&& !kept_down
)
2340 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
2343 * report the uplevel that it is not an error that we
2344 * did not rmdir() our directory.
2350 int remove_dir_recursively(struct strbuf
*path
, int flag
)
2352 return remove_dir_recurse(path
, flag
, NULL
);
2355 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
2357 void setup_standard_excludes(struct dir_struct
*dir
)
2359 dir
->exclude_per_dir
= ".gitignore";
2361 /* core.excludefile defaulting to $XDG_HOME/git/ignore */
2363 excludes_file
= xdg_config_home("ignore");
2364 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
2365 add_excludes_from_file_1(dir
, excludes_file
,
2366 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
2368 /* per repository user preference */
2369 if (startup_info
->have_repository
) {
2370 const char *path
= git_path_info_exclude();
2371 if (!access_or_warn(path
, R_OK
, 0))
2372 add_excludes_from_file_1(dir
, path
,
2373 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
2377 int remove_path(const char *name
)
2381 if (unlink(name
) && !is_missing_file_error(errno
))
2384 slash
= strrchr(name
, '/');
2386 char *dirs
= xstrdup(name
);
2387 slash
= dirs
+ (slash
- name
);
2390 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
2397 * Frees memory within dir which was allocated for exclude lists and
2398 * the exclude_stack. Does not free dir itself.
2400 void clear_directory(struct dir_struct
*dir
)
2403 struct exclude_list_group
*group
;
2404 struct exclude_list
*el
;
2405 struct exclude_stack
*stk
;
2407 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
2408 group
= &dir
->exclude_list_group
[i
];
2409 for (j
= 0; j
< group
->nr
; j
++) {
2412 free((char *)el
->src
);
2413 clear_exclude_list(el
);
2418 stk
= dir
->exclude_stack
;
2420 struct exclude_stack
*prev
= stk
->prev
;
2424 strbuf_release(&dir
->basebuf
);
2427 struct ondisk_untracked_cache
{
2428 struct stat_data info_exclude_stat
;
2429 struct stat_data excludes_file_stat
;
2431 unsigned char info_exclude_sha1
[20];
2432 unsigned char excludes_file_sha1
[20];
2433 char exclude_per_dir
[FLEX_ARRAY
];
2436 #define ouc_offset(x) offsetof(struct ondisk_untracked_cache, x)
2437 #define ouc_size(len) (ouc_offset(exclude_per_dir) + len + 1)
2440 int index
; /* number of written untracked_cache_dir */
2441 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
2442 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
2443 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
2445 struct strbuf sb_stat
;
2446 struct strbuf sb_sha1
;
2449 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
2451 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
2452 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
2453 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
2454 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
2455 to
->sd_dev
= htonl(from
->sd_dev
);
2456 to
->sd_ino
= htonl(from
->sd_ino
);
2457 to
->sd_uid
= htonl(from
->sd_uid
);
2458 to
->sd_gid
= htonl(from
->sd_gid
);
2459 to
->sd_size
= htonl(from
->sd_size
);
2462 static void write_one_dir(struct untracked_cache_dir
*untracked
,
2463 struct write_data
*wd
)
2465 struct stat_data stat_data
;
2466 struct strbuf
*out
= &wd
->out
;
2467 unsigned char intbuf
[16];
2468 unsigned int intlen
, value
;
2469 int i
= wd
->index
++;
2472 * untracked_nr should be reset whenever valid is clear, but
2475 if (!untracked
->valid
) {
2476 untracked
->untracked_nr
= 0;
2477 untracked
->check_only
= 0;
2480 if (untracked
->check_only
)
2481 ewah_set(wd
->check_only
, i
);
2482 if (untracked
->valid
) {
2483 ewah_set(wd
->valid
, i
);
2484 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
2485 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
2487 if (!is_null_sha1(untracked
->exclude_sha1
)) {
2488 ewah_set(wd
->sha1_valid
, i
);
2489 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_sha1
, 20);
2492 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
2493 strbuf_add(out
, intbuf
, intlen
);
2495 /* skip non-recurse directories */
2496 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
2497 if (untracked
->dirs
[i
]->recurse
)
2499 intlen
= encode_varint(value
, intbuf
);
2500 strbuf_add(out
, intbuf
, intlen
);
2502 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
2504 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
2505 strbuf_add(out
, untracked
->untracked
[i
],
2506 strlen(untracked
->untracked
[i
]) + 1);
2508 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
2509 if (untracked
->dirs
[i
]->recurse
)
2510 write_one_dir(untracked
->dirs
[i
], wd
);
2513 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
2515 struct ondisk_untracked_cache
*ouc
;
2516 struct write_data wd
;
2517 unsigned char varbuf
[16];
2519 size_t len
= strlen(untracked
->exclude_per_dir
);
2521 FLEX_ALLOC_MEM(ouc
, exclude_per_dir
, untracked
->exclude_per_dir
, len
);
2522 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
2523 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
2524 hashcpy(ouc
->info_exclude_sha1
, untracked
->ss_info_exclude
.sha1
);
2525 hashcpy(ouc
->excludes_file_sha1
, untracked
->ss_excludes_file
.sha1
);
2526 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
2528 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
2529 strbuf_add(out
, varbuf
, varint_len
);
2530 strbuf_addbuf(out
, &untracked
->ident
);
2532 strbuf_add(out
, ouc
, ouc_size(len
));
2535 if (!untracked
->root
) {
2536 varint_len
= encode_varint(0, varbuf
);
2537 strbuf_add(out
, varbuf
, varint_len
);
2542 wd
.check_only
= ewah_new();
2543 wd
.valid
= ewah_new();
2544 wd
.sha1_valid
= ewah_new();
2545 strbuf_init(&wd
.out
, 1024);
2546 strbuf_init(&wd
.sb_stat
, 1024);
2547 strbuf_init(&wd
.sb_sha1
, 1024);
2548 write_one_dir(untracked
->root
, &wd
);
2550 varint_len
= encode_varint(wd
.index
, varbuf
);
2551 strbuf_add(out
, varbuf
, varint_len
);
2552 strbuf_addbuf(out
, &wd
.out
);
2553 ewah_serialize_strbuf(wd
.valid
, out
);
2554 ewah_serialize_strbuf(wd
.check_only
, out
);
2555 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
2556 strbuf_addbuf(out
, &wd
.sb_stat
);
2557 strbuf_addbuf(out
, &wd
.sb_sha1
);
2558 strbuf_addch(out
, '\0'); /* safe guard for string lists */
2560 ewah_free(wd
.valid
);
2561 ewah_free(wd
.check_only
);
2562 ewah_free(wd
.sha1_valid
);
2563 strbuf_release(&wd
.out
);
2564 strbuf_release(&wd
.sb_stat
);
2565 strbuf_release(&wd
.sb_sha1
);
2568 static void free_untracked(struct untracked_cache_dir
*ucd
)
2573 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
2574 free_untracked(ucd
->dirs
[i
]);
2575 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
2576 free(ucd
->untracked
[i
]);
2577 free(ucd
->untracked
);
2582 void free_untracked_cache(struct untracked_cache
*uc
)
2585 free_untracked(uc
->root
);
2591 struct untracked_cache_dir
**ucd
;
2592 struct ewah_bitmap
*check_only
;
2593 struct ewah_bitmap
*valid
;
2594 struct ewah_bitmap
*sha1_valid
;
2595 const unsigned char *data
;
2596 const unsigned char *end
;
2599 static void stat_data_from_disk(struct stat_data
*to
, const unsigned char *data
)
2601 memcpy(to
, data
, sizeof(*to
));
2602 to
->sd_ctime
.sec
= ntohl(to
->sd_ctime
.sec
);
2603 to
->sd_ctime
.nsec
= ntohl(to
->sd_ctime
.nsec
);
2604 to
->sd_mtime
.sec
= ntohl(to
->sd_mtime
.sec
);
2605 to
->sd_mtime
.nsec
= ntohl(to
->sd_mtime
.nsec
);
2606 to
->sd_dev
= ntohl(to
->sd_dev
);
2607 to
->sd_ino
= ntohl(to
->sd_ino
);
2608 to
->sd_uid
= ntohl(to
->sd_uid
);
2609 to
->sd_gid
= ntohl(to
->sd_gid
);
2610 to
->sd_size
= ntohl(to
->sd_size
);
2613 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
2614 struct read_data
*rd
)
2616 struct untracked_cache_dir ud
, *untracked
;
2617 const unsigned char *next
, *data
= rd
->data
, *end
= rd
->end
;
2621 memset(&ud
, 0, sizeof(ud
));
2624 value
= decode_varint(&next
);
2628 ud
.untracked_alloc
= value
;
2629 ud
.untracked_nr
= value
;
2630 if (ud
.untracked_nr
)
2631 ALLOC_ARRAY(ud
.untracked
, ud
.untracked_nr
);
2635 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&next
);
2638 ALLOC_ARRAY(ud
.dirs
, ud
.dirs_nr
);
2641 len
= strlen((const char *)data
);
2642 next
= data
+ len
+ 1;
2645 *untracked_
= untracked
= xmalloc(st_add(sizeof(*untracked
), len
));
2646 memcpy(untracked
, &ud
, sizeof(ud
));
2647 memcpy(untracked
->name
, data
, len
+ 1);
2650 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
2651 len
= strlen((const char *)data
);
2652 next
= data
+ len
+ 1;
2655 untracked
->untracked
[i
] = xstrdup((const char*)data
);
2659 rd
->ucd
[rd
->index
++] = untracked
;
2662 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
2663 len
= read_one_dir(untracked
->dirs
+ i
, rd
);
2670 static void set_check_only(size_t pos
, void *cb
)
2672 struct read_data
*rd
= cb
;
2673 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2677 static void read_stat(size_t pos
, void *cb
)
2679 struct read_data
*rd
= cb
;
2680 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2681 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
2682 rd
->data
= rd
->end
+ 1;
2685 stat_data_from_disk(&ud
->stat_data
, rd
->data
);
2686 rd
->data
+= sizeof(struct stat_data
);
2690 static void read_sha1(size_t pos
, void *cb
)
2692 struct read_data
*rd
= cb
;
2693 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2694 if (rd
->data
+ 20 > rd
->end
) {
2695 rd
->data
= rd
->end
+ 1;
2698 hashcpy(ud
->exclude_sha1
, rd
->data
);
2702 static void load_sha1_stat(struct sha1_stat
*sha1_stat
,
2703 const unsigned char *data
,
2704 const unsigned char *sha1
)
2706 stat_data_from_disk(&sha1_stat
->stat
, data
);
2707 hashcpy(sha1_stat
->sha1
, sha1
);
2708 sha1_stat
->valid
= 1;
2711 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
2713 struct untracked_cache
*uc
;
2714 struct read_data rd
;
2715 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
2718 const char *exclude_per_dir
;
2720 if (sz
<= 1 || end
[-1] != '\0')
2724 ident_len
= decode_varint(&next
);
2725 if (next
+ ident_len
> end
)
2727 ident
= (const char *)next
;
2730 if (next
+ ouc_size(0) > end
)
2733 uc
= xcalloc(1, sizeof(*uc
));
2734 strbuf_init(&uc
->ident
, ident_len
);
2735 strbuf_add(&uc
->ident
, ident
, ident_len
);
2736 load_sha1_stat(&uc
->ss_info_exclude
,
2737 next
+ ouc_offset(info_exclude_stat
),
2738 next
+ ouc_offset(info_exclude_sha1
));
2739 load_sha1_stat(&uc
->ss_excludes_file
,
2740 next
+ ouc_offset(excludes_file_stat
),
2741 next
+ ouc_offset(excludes_file_sha1
));
2742 uc
->dir_flags
= get_be32(next
+ ouc_offset(dir_flags
));
2743 exclude_per_dir
= (const char *)next
+ ouc_offset(exclude_per_dir
);
2744 uc
->exclude_per_dir
= xstrdup(exclude_per_dir
);
2745 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
2746 next
+= ouc_size(strlen(exclude_per_dir
));
2750 len
= decode_varint(&next
);
2751 if (next
> end
|| len
== 0)
2754 rd
.valid
= ewah_new();
2755 rd
.check_only
= ewah_new();
2756 rd
.sha1_valid
= ewah_new();
2760 ALLOC_ARRAY(rd
.ucd
, len
);
2762 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
2766 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
2771 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
2776 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
2780 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
2781 rd
.data
= next
+ len
;
2782 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
2783 ewah_each_bit(rd
.sha1_valid
, read_sha1
, &rd
);
2788 ewah_free(rd
.valid
);
2789 ewah_free(rd
.check_only
);
2790 ewah_free(rd
.sha1_valid
);
2793 free_untracked_cache(uc
);
2799 static void invalidate_one_directory(struct untracked_cache
*uc
,
2800 struct untracked_cache_dir
*ucd
)
2802 uc
->dir_invalidated
++;
2804 ucd
->untracked_nr
= 0;
2808 * Normally when an entry is added or removed from a directory,
2809 * invalidating that directory is enough. No need to touch its
2810 * ancestors. When a directory is shown as "foo/bar/" in git-status
2811 * however, deleting or adding an entry may have cascading effect.
2813 * Say the "foo/bar/file" has become untracked, we need to tell the
2814 * untracked_cache_dir of "foo" that "bar/" is not an untracked
2815 * directory any more (because "bar" is managed by foo as an untracked
2818 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
2819 * was the last untracked entry in the entire "foo", we should show
2820 * "foo/" instead. Which means we have to invalidate past "bar" up to
2823 * This function traverses all directories from root to leaf. If there
2824 * is a chance of one of the above cases happening, we invalidate back
2825 * to root. Otherwise we just invalidate the leaf. There may be a more
2826 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
2827 * detect these cases and avoid unnecessary invalidation, for example,
2828 * checking for the untracked entry named "bar/" in "foo", but for now
2829 * stick to something safe and simple.
2831 static int invalidate_one_component(struct untracked_cache
*uc
,
2832 struct untracked_cache_dir
*dir
,
2833 const char *path
, int len
)
2835 const char *rest
= strchr(path
, '/');
2838 int component_len
= rest
- path
;
2839 struct untracked_cache_dir
*d
=
2840 lookup_untracked(uc
, dir
, path
, component_len
);
2842 invalidate_one_component(uc
, d
, rest
+ 1,
2843 len
- (component_len
+ 1));
2845 invalidate_one_directory(uc
, dir
);
2849 invalidate_one_directory(uc
, dir
);
2850 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
2853 void untracked_cache_invalidate_path(struct index_state
*istate
,
2856 if (!istate
->untracked
|| !istate
->untracked
->root
)
2858 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
2859 path
, strlen(path
));
2862 void untracked_cache_remove_from_index(struct index_state
*istate
,
2865 untracked_cache_invalidate_path(istate
, path
);
2868 void untracked_cache_add_to_index(struct index_state
*istate
,
2871 untracked_cache_invalidate_path(istate
, path
);
2874 /* Update gitfile and core.worktree setting to connect work tree and git dir */
2875 void connect_work_tree_and_git_dir(const char *work_tree_
, const char *git_dir_
)
2877 struct strbuf gitfile_sb
= STRBUF_INIT
;
2878 struct strbuf cfg_sb
= STRBUF_INIT
;
2879 struct strbuf rel_path
= STRBUF_INIT
;
2880 char *git_dir
, *work_tree
;
2882 /* Prepare .git file */
2883 strbuf_addf(&gitfile_sb
, "%s/.git", work_tree_
);
2884 if (safe_create_leading_directories_const(gitfile_sb
.buf
))
2885 die(_("could not create directories for %s"), gitfile_sb
.buf
);
2887 /* Prepare config file */
2888 strbuf_addf(&cfg_sb
, "%s/config", git_dir_
);
2889 if (safe_create_leading_directories_const(cfg_sb
.buf
))
2890 die(_("could not create directories for %s"), cfg_sb
.buf
);
2892 git_dir
= real_pathdup(git_dir_
, 1);
2893 work_tree
= real_pathdup(work_tree_
, 1);
2895 /* Write .git file */
2896 write_file(gitfile_sb
.buf
, "gitdir: %s",
2897 relative_path(git_dir
, work_tree
, &rel_path
));
2898 /* Update core.worktree setting */
2899 git_config_set_in_file(cfg_sb
.buf
, "core.worktree",
2900 relative_path(work_tree
, git_dir
, &rel_path
));
2902 strbuf_release(&gitfile_sb
);
2903 strbuf_release(&cfg_sb
);
2904 strbuf_release(&rel_path
);
2910 * Migrate the git directory of the given path from old_git_dir to new_git_dir.
2912 void relocate_gitdir(const char *path
, const char *old_git_dir
, const char *new_git_dir
)
2914 if (rename(old_git_dir
, new_git_dir
) < 0)
2915 die_errno(_("could not migrate git directory from '%s' to '%s'"),
2916 old_git_dir
, new_git_dir
);
2918 connect_work_tree_and_git_dir(path
, new_git_dir
);