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
14 #include "wildmatch.h"
18 #include "ewah/ewok.h"
21 * Tells read_directory_recursive how a file or directory should be treated.
22 * Values are ordered by significance, e.g. if a directory contains both
23 * excluded and untracked files, it is listed as untracked because
24 * path_untracked > path_excluded.
34 * Support data structure for our opendir/readdir/closedir wrappers
38 struct untracked_cache_dir
*untracked
;
44 struct untracked_cache_dir
*ucd
;
47 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
48 const char *path
, int len
, struct untracked_cache_dir
*untracked
,
49 int check_only
, const struct pathspec
*pathspec
);
50 static int get_dtype(struct dirent
*de
, const char *path
, int len
);
52 int count_slashes(const char *s
)
61 int fspathcmp(const char *a
, const char *b
)
63 return ignore_case
? strcasecmp(a
, b
) : strcmp(a
, b
);
66 int fspathncmp(const char *a
, const char *b
, size_t count
)
68 return ignore_case
? strncasecmp(a
, b
, count
) : strncmp(a
, b
, count
);
71 int git_fnmatch(const struct pathspec_item
*item
,
72 const char *pattern
, const char *string
,
76 if (ps_strncmp(item
, pattern
, string
, prefix
))
81 if (item
->flags
& PATHSPEC_ONESTAR
) {
82 int pattern_len
= strlen(++pattern
);
83 int string_len
= strlen(string
);
84 return string_len
< pattern_len
||
85 ps_strcmp(item
, pattern
,
86 string
+ string_len
- pattern_len
);
88 if (item
->magic
& PATHSPEC_GLOB
)
89 return wildmatch(pattern
, string
,
91 (item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0),
94 /* wildmatch has not learned no FNM_PATHNAME mode yet */
95 return wildmatch(pattern
, string
,
96 item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0,
100 static int fnmatch_icase_mem(const char *pattern
, int patternlen
,
101 const char *string
, int stringlen
,
105 struct strbuf pat_buf
= STRBUF_INIT
;
106 struct strbuf str_buf
= STRBUF_INIT
;
107 const char *use_pat
= pattern
;
108 const char *use_str
= string
;
110 if (pattern
[patternlen
]) {
111 strbuf_add(&pat_buf
, pattern
, patternlen
);
112 use_pat
= pat_buf
.buf
;
114 if (string
[stringlen
]) {
115 strbuf_add(&str_buf
, string
, stringlen
);
116 use_str
= str_buf
.buf
;
120 flags
|= WM_CASEFOLD
;
121 match_status
= wildmatch(use_pat
, use_str
, flags
, NULL
);
123 strbuf_release(&pat_buf
);
124 strbuf_release(&str_buf
);
129 static size_t common_prefix_len(const struct pathspec
*pathspec
)
135 * ":(icase)path" is treated as a pathspec full of
136 * wildcard. In other words, only prefix is considered common
137 * prefix. If the pathspec is abc/foo abc/bar, running in
138 * subdir xyz, the common prefix is still xyz, not xuz/abc as
141 GUARD_PATHSPEC(pathspec
,
150 for (n
= 0; n
< pathspec
->nr
; n
++) {
151 size_t i
= 0, len
= 0, item_len
;
152 if (pathspec
->items
[n
].magic
& PATHSPEC_EXCLUDE
)
154 if (pathspec
->items
[n
].magic
& PATHSPEC_ICASE
)
155 item_len
= pathspec
->items
[n
].prefix
;
157 item_len
= pathspec
->items
[n
].nowildcard_len
;
158 while (i
< item_len
&& (n
== 0 || i
< max
)) {
159 char c
= pathspec
->items
[n
].match
[i
];
160 if (c
!= pathspec
->items
[0].match
[i
])
166 if (n
== 0 || len
< max
) {
176 * Returns a copy of the longest leading path common among all
179 char *common_prefix(const struct pathspec
*pathspec
)
181 unsigned long len
= common_prefix_len(pathspec
);
183 return len
? xmemdupz(pathspec
->items
[0].match
, len
) : NULL
;
186 int fill_directory(struct dir_struct
*dir
, const struct pathspec
*pathspec
)
192 * Calculate common prefix for the pathspec, and
193 * use that to optimize the directory walk
195 prefix_len
= common_prefix_len(pathspec
);
196 prefix
= prefix_len
? pathspec
->items
[0].match
: "";
198 /* Read the directory and prune it */
199 read_directory(dir
, prefix
, prefix_len
, pathspec
);
204 int within_depth(const char *name
, int namelen
,
205 int depth
, int max_depth
)
207 const char *cp
= name
, *cpe
= name
+ namelen
;
213 if (depth
> max_depth
)
219 #define DO_MATCH_EXCLUDE (1<<0)
220 #define DO_MATCH_DIRECTORY (1<<1)
221 #define DO_MATCH_SUBMODULE (1<<2)
223 static int match_attrs(const char *name
, int namelen
,
224 const struct pathspec_item
*item
)
228 git_check_attr(name
, item
->attr_check
);
229 for (i
= 0; i
< item
->attr_match_nr
; i
++) {
232 enum attr_match_mode match_mode
;
234 value
= item
->attr_check
->items
[i
].value
;
235 match_mode
= item
->attr_match
[i
].match_mode
;
237 if (ATTR_TRUE(value
))
238 matched
= (match_mode
== MATCH_SET
);
239 else if (ATTR_FALSE(value
))
240 matched
= (match_mode
== MATCH_UNSET
);
241 else if (ATTR_UNSET(value
))
242 matched
= (match_mode
== MATCH_UNSPECIFIED
);
244 matched
= (match_mode
== MATCH_VALUE
&&
245 !strcmp(item
->attr_match
[i
].value
, value
));
254 * Does 'match' match the given name?
255 * A match is found if
257 * (1) the 'match' string is leading directory of 'name', or
258 * (2) the 'match' string is a wildcard and matches 'name', or
259 * (3) the 'match' string is exactly the same as 'name'.
261 * and the return value tells which case it was.
263 * It returns 0 when there is no match.
265 static int match_pathspec_item(const struct pathspec_item
*item
, int prefix
,
266 const char *name
, int namelen
, unsigned flags
)
268 /* name/namelen has prefix cut off by caller */
269 const char *match
= item
->match
+ prefix
;
270 int matchlen
= item
->len
- prefix
;
273 * The normal call pattern is:
274 * 1. prefix = common_prefix_len(ps);
275 * 2. prune something, or fill_directory
276 * 3. match_pathspec()
278 * 'prefix' at #1 may be shorter than the command's prefix and
279 * it's ok for #2 to match extra files. Those extras will be
282 * Suppose the pathspec is 'foo' and '../bar' running from
283 * subdir 'xyz'. The common prefix at #1 will be empty, thanks
284 * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The
285 * user does not want XYZ/foo, only the "foo" part should be
286 * case-insensitive. We need to filter out XYZ/foo here. In
287 * other words, we do not trust the caller on comparing the
288 * prefix part when :(icase) is involved. We do exact
289 * comparison ourselves.
291 * Normally the caller (common_prefix_len() in fact) does
292 * _exact_ matching on name[-prefix+1..-1] and we do not need
293 * to check that part. Be defensive and check it anyway, in
294 * case common_prefix_len is changed, or a new caller is
295 * introduced that does not use common_prefix_len.
297 * If the penalty turns out too high when prefix is really
298 * long, maybe change it to
299 * strncmp(match, name, item->prefix - prefix)
301 if (item
->prefix
&& (item
->magic
& PATHSPEC_ICASE
) &&
302 strncmp(item
->match
, name
- prefix
, item
->prefix
))
305 if (item
->attr_match_nr
&& !match_attrs(name
, namelen
, item
))
308 /* If the match was just the prefix, we matched */
310 return MATCHED_RECURSIVELY
;
312 if (matchlen
<= namelen
&& !ps_strncmp(item
, match
, name
, matchlen
)) {
313 if (matchlen
== namelen
)
314 return MATCHED_EXACTLY
;
316 if (match
[matchlen
-1] == '/' || name
[matchlen
] == '/')
317 return MATCHED_RECURSIVELY
;
318 } else if ((flags
& DO_MATCH_DIRECTORY
) &&
319 match
[matchlen
- 1] == '/' &&
320 namelen
== matchlen
- 1 &&
321 !ps_strncmp(item
, match
, name
, namelen
))
322 return MATCHED_EXACTLY
;
324 if (item
->nowildcard_len
< item
->len
&&
325 !git_fnmatch(item
, match
, name
,
326 item
->nowildcard_len
- prefix
))
327 return MATCHED_FNMATCH
;
329 /* Perform checks to see if "name" is a super set of the pathspec */
330 if (flags
& DO_MATCH_SUBMODULE
) {
331 /* name is a literal prefix of the pathspec */
332 if ((namelen
< matchlen
) &&
333 (match
[namelen
] == '/') &&
334 !ps_strncmp(item
, match
, name
, namelen
))
335 return MATCHED_RECURSIVELY
;
337 /* name" doesn't match up to the first wild character */
338 if (item
->nowildcard_len
< item
->len
&&
339 ps_strncmp(item
, match
, name
,
340 item
->nowildcard_len
- prefix
))
344 * Here is where we would perform a wildmatch to check if
345 * "name" can be matched as a directory (or a prefix) against
346 * the pathspec. Since wildmatch doesn't have this capability
347 * at the present we have to punt and say that it is a match,
348 * potentially returning a false positive
349 * The submodules themselves will be able to perform more
350 * accurate matching to determine if the pathspec matches.
352 return MATCHED_RECURSIVELY
;
359 * Given a name and a list of pathspecs, returns the nature of the
360 * closest (i.e. most specific) match of the name to any of the
363 * The caller typically calls this multiple times with the same
364 * pathspec and seen[] array but with different name/namelen
365 * (e.g. entries from the index) and is interested in seeing if and
366 * how each pathspec matches all the names it calls this function
367 * with. A mark is left in the seen[] array for each pathspec element
368 * indicating the closest type of match that element achieved, so if
369 * seen[n] remains zero after multiple invocations, that means the nth
370 * pathspec did not match any names, which could indicate that the
371 * user mistyped the nth pathspec.
373 static int do_match_pathspec(const struct pathspec
*ps
,
374 const char *name
, int namelen
,
375 int prefix
, char *seen
,
378 int i
, retval
= 0, exclude
= flags
& DO_MATCH_EXCLUDE
;
390 if (!ps
->recursive
||
391 !(ps
->magic
& PATHSPEC_MAXDEPTH
) ||
393 return MATCHED_RECURSIVELY
;
395 if (within_depth(name
, namelen
, 0, ps
->max_depth
))
396 return MATCHED_EXACTLY
;
404 for (i
= ps
->nr
- 1; i
>= 0; i
--) {
407 if ((!exclude
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
) ||
408 ( exclude
&& !(ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)))
411 if (seen
&& seen
[i
] == MATCHED_EXACTLY
)
414 * Make exclude patterns optional and never report
415 * "pathspec ':(exclude)foo' matches no files"
417 if (seen
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)
418 seen
[i
] = MATCHED_FNMATCH
;
419 how
= match_pathspec_item(ps
->items
+i
, prefix
, name
,
422 (ps
->magic
& PATHSPEC_MAXDEPTH
) &&
423 ps
->max_depth
!= -1 &&
424 how
&& how
!= MATCHED_FNMATCH
) {
425 int len
= ps
->items
[i
].len
;
426 if (name
[len
] == '/')
428 if (within_depth(name
+len
, namelen
-len
, 0, ps
->max_depth
))
429 how
= MATCHED_EXACTLY
;
436 if (seen
&& seen
[i
] < how
)
443 int match_pathspec(const struct pathspec
*ps
,
444 const char *name
, int namelen
,
445 int prefix
, char *seen
, int is_dir
)
447 int positive
, negative
;
448 unsigned flags
= is_dir
? DO_MATCH_DIRECTORY
: 0;
449 positive
= do_match_pathspec(ps
, name
, namelen
,
450 prefix
, seen
, flags
);
451 if (!(ps
->magic
& PATHSPEC_EXCLUDE
) || !positive
)
453 negative
= do_match_pathspec(ps
, name
, namelen
,
455 flags
| DO_MATCH_EXCLUDE
);
456 return negative
? 0 : positive
;
460 * Check if a submodule is a superset of the pathspec
462 int submodule_path_match(const struct pathspec
*ps
,
463 const char *submodule_name
,
466 int matched
= do_match_pathspec(ps
, submodule_name
,
467 strlen(submodule_name
),
474 int report_path_error(const char *ps_matched
,
475 const struct pathspec
*pathspec
,
479 * Make sure all pathspec matched; otherwise it is an error.
482 for (num
= 0; num
< pathspec
->nr
; num
++) {
483 int other
, found_dup
;
488 * The caller might have fed identical pathspec
489 * twice. Do not barf on such a mistake.
490 * FIXME: parse_pathspec should have eliminated
491 * duplicate pathspec.
493 for (found_dup
= other
= 0;
494 !found_dup
&& other
< pathspec
->nr
;
496 if (other
== num
|| !ps_matched
[other
])
498 if (!strcmp(pathspec
->items
[other
].original
,
499 pathspec
->items
[num
].original
))
501 * Ok, we have a match already.
508 error("pathspec '%s' did not match any file(s) known to git.",
509 pathspec
->items
[num
].original
);
516 * Return the length of the "simple" part of a path match limiter.
518 int simple_length(const char *match
)
523 unsigned char c
= *match
++;
525 if (c
== '\0' || is_glob_special(c
))
530 int no_wildcard(const char *string
)
532 return string
[simple_length(string
)] == '\0';
535 void parse_exclude_pattern(const char **pattern
,
540 const char *p
= *pattern
;
545 *flags
|= EXC_FLAG_NEGATIVE
;
549 if (len
&& p
[len
- 1] == '/') {
551 *flags
|= EXC_FLAG_MUSTBEDIR
;
553 for (i
= 0; i
< len
; i
++) {
558 *flags
|= EXC_FLAG_NODIR
;
559 *nowildcardlen
= simple_length(p
);
561 * we should have excluded the trailing slash from 'p' too,
562 * but that's one more allocation. Instead just make sure
563 * nowildcardlen does not exceed real patternlen
565 if (*nowildcardlen
> len
)
566 *nowildcardlen
= len
;
567 if (*p
== '*' && no_wildcard(p
+ 1))
568 *flags
|= EXC_FLAG_ENDSWITH
;
573 void add_exclude(const char *string
, const char *base
,
574 int baselen
, struct exclude_list
*el
, int srcpos
)
581 parse_exclude_pattern(&string
, &patternlen
, &flags
, &nowildcardlen
);
582 if (flags
& EXC_FLAG_MUSTBEDIR
) {
583 FLEXPTR_ALLOC_MEM(x
, pattern
, string
, patternlen
);
585 x
= xmalloc(sizeof(*x
));
588 x
->patternlen
= patternlen
;
589 x
->nowildcardlen
= nowildcardlen
;
591 x
->baselen
= baselen
;
594 ALLOC_GROW(el
->excludes
, el
->nr
+ 1, el
->alloc
);
595 el
->excludes
[el
->nr
++] = x
;
599 static void *read_skip_worktree_file_from_index(const char *path
, size_t *size
,
600 struct sha1_stat
*sha1_stat
)
604 enum object_type type
;
608 pos
= cache_name_pos(path
, len
);
611 if (!ce_skip_worktree(active_cache
[pos
]))
613 data
= read_sha1_file(active_cache
[pos
]->oid
.hash
, &type
, &sz
);
614 if (!data
|| type
!= OBJ_BLOB
) {
620 memset(&sha1_stat
->stat
, 0, sizeof(sha1_stat
->stat
));
621 hashcpy(sha1_stat
->sha1
, active_cache
[pos
]->oid
.hash
);
627 * Frees memory within el which was allocated for exclude patterns and
628 * the file buffer. Does not free el itself.
630 void clear_exclude_list(struct exclude_list
*el
)
634 for (i
= 0; i
< el
->nr
; i
++)
635 free(el
->excludes
[i
]);
639 memset(el
, 0, sizeof(*el
));
642 static void trim_trailing_spaces(char *buf
)
644 char *p
, *last_space
= NULL
;
646 for (p
= buf
; *p
; p
++)
666 * Given a subdirectory name and "dir" of the current directory,
667 * search the subdir in "dir" and return it, or create a new one if it
668 * does not exist in "dir".
670 * If "name" has the trailing slash, it'll be excluded in the search.
672 static struct untracked_cache_dir
*lookup_untracked(struct untracked_cache
*uc
,
673 struct untracked_cache_dir
*dir
,
674 const char *name
, int len
)
677 struct untracked_cache_dir
*d
;
680 if (len
&& name
[len
- 1] == '/')
684 while (last
> first
) {
685 int cmp
, next
= (last
+ first
) >> 1;
687 cmp
= strncmp(name
, d
->name
, len
);
688 if (!cmp
&& strlen(d
->name
) > len
)
700 FLEX_ALLOC_MEM(d
, name
, name
, len
);
702 ALLOC_GROW(dir
->dirs
, dir
->dirs_nr
+ 1, dir
->dirs_alloc
);
703 memmove(dir
->dirs
+ first
+ 1, dir
->dirs
+ first
,
704 (dir
->dirs_nr
- first
) * sizeof(*dir
->dirs
));
706 dir
->dirs
[first
] = d
;
710 static void do_invalidate_gitignore(struct untracked_cache_dir
*dir
)
714 dir
->untracked_nr
= 0;
715 for (i
= 0; i
< dir
->dirs_nr
; i
++)
716 do_invalidate_gitignore(dir
->dirs
[i
]);
719 static void invalidate_gitignore(struct untracked_cache
*uc
,
720 struct untracked_cache_dir
*dir
)
722 uc
->gitignore_invalidated
++;
723 do_invalidate_gitignore(dir
);
726 static void invalidate_directory(struct untracked_cache
*uc
,
727 struct untracked_cache_dir
*dir
)
730 uc
->dir_invalidated
++;
732 dir
->untracked_nr
= 0;
733 for (i
= 0; i
< dir
->dirs_nr
; i
++)
734 dir
->dirs
[i
]->recurse
= 0;
738 * Given a file with name "fname", read it (either from disk, or from
739 * the index if "check_index" is non-zero), parse it and store the
740 * exclude rules in "el".
742 * If "ss" is not NULL, compute SHA-1 of the exclude file and fill
743 * stat data from disk (only valid if add_excludes returns zero). If
744 * ss_valid is non-zero, "ss" must contain good value as input.
746 static int add_excludes(const char *fname
, const char *base
, int baselen
,
747 struct exclude_list
*el
, int check_index
,
748 struct sha1_stat
*sha1_stat
)
751 int fd
, i
, lineno
= 1;
755 fd
= open(fname
, O_RDONLY
);
756 if (fd
< 0 || fstat(fd
, &st
) < 0) {
758 warn_on_inaccessible(fname
);
762 (buf
= read_skip_worktree_file_from_index(fname
, &size
, sha1_stat
)) == NULL
)
768 if (buf
[size
-1] != '\n') {
769 buf
= xrealloc(buf
, st_add(size
, 1));
773 size
= xsize_t(st
.st_size
);
776 fill_stat_data(&sha1_stat
->stat
, &st
);
777 hashcpy(sha1_stat
->sha1
, EMPTY_BLOB_SHA1_BIN
);
778 sha1_stat
->valid
= 1;
783 buf
= xmallocz(size
);
784 if (read_in_full(fd
, buf
, size
) != size
) {
793 if (sha1_stat
->valid
&&
794 !match_stat_data_racy(&the_index
, &sha1_stat
->stat
, &st
))
795 ; /* no content change, ss->sha1 still good */
796 else if (check_index
&&
797 (pos
= cache_name_pos(fname
, strlen(fname
))) >= 0 &&
798 !ce_stage(active_cache
[pos
]) &&
799 ce_uptodate(active_cache
[pos
]) &&
800 !would_convert_to_git(fname
))
801 hashcpy(sha1_stat
->sha1
,
802 active_cache
[pos
]->oid
.hash
);
804 hash_sha1_file(buf
, size
, "blob", sha1_stat
->sha1
);
805 fill_stat_data(&sha1_stat
->stat
, &st
);
806 sha1_stat
->valid
= 1;
812 if (skip_utf8_bom(&buf
, size
))
813 size
-= buf
- el
->filebuf
;
817 for (i
= 0; i
< size
; i
++) {
818 if (buf
[i
] == '\n') {
819 if (entry
!= buf
+ i
&& entry
[0] != '#') {
820 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
821 trim_trailing_spaces(entry
);
822 add_exclude(entry
, base
, baselen
, el
, lineno
);
831 int add_excludes_from_file_to_list(const char *fname
, const char *base
,
832 int baselen
, struct exclude_list
*el
,
835 return add_excludes(fname
, base
, baselen
, el
, check_index
, NULL
);
838 struct exclude_list
*add_exclude_list(struct dir_struct
*dir
,
839 int group_type
, const char *src
)
841 struct exclude_list
*el
;
842 struct exclude_list_group
*group
;
844 group
= &dir
->exclude_list_group
[group_type
];
845 ALLOC_GROW(group
->el
, group
->nr
+ 1, group
->alloc
);
846 el
= &group
->el
[group
->nr
++];
847 memset(el
, 0, sizeof(*el
));
853 * Used to set up core.excludesfile and .git/info/exclude lists.
855 static void add_excludes_from_file_1(struct dir_struct
*dir
, const char *fname
,
856 struct sha1_stat
*sha1_stat
)
858 struct exclude_list
*el
;
860 * catch setup_standard_excludes() that's called before
861 * dir->untracked is assigned. That function behaves
862 * differently when dir->untracked is non-NULL.
865 dir
->unmanaged_exclude_files
++;
866 el
= add_exclude_list(dir
, EXC_FILE
, fname
);
867 if (add_excludes(fname
, "", 0, el
, 0, sha1_stat
) < 0)
868 die("cannot use %s as an exclude file", fname
);
871 void add_excludes_from_file(struct dir_struct
*dir
, const char *fname
)
873 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
874 add_excludes_from_file_1(dir
, fname
, NULL
);
877 int match_basename(const char *basename
, int basenamelen
,
878 const char *pattern
, int prefix
, int patternlen
,
881 if (prefix
== patternlen
) {
882 if (patternlen
== basenamelen
&&
883 !fspathncmp(pattern
, basename
, basenamelen
))
885 } else if (flags
& EXC_FLAG_ENDSWITH
) {
886 /* "*literal" matching against "fooliteral" */
887 if (patternlen
- 1 <= basenamelen
&&
888 !fspathncmp(pattern
+ 1,
889 basename
+ basenamelen
- (patternlen
- 1),
893 if (fnmatch_icase_mem(pattern
, patternlen
,
894 basename
, basenamelen
,
901 int match_pathname(const char *pathname
, int pathlen
,
902 const char *base
, int baselen
,
903 const char *pattern
, int prefix
, int patternlen
,
910 * match with FNM_PATHNAME; the pattern has base implicitly
913 if (*pattern
== '/') {
920 * baselen does not count the trailing slash. base[] may or
921 * may not end with a trailing slash though.
923 if (pathlen
< baselen
+ 1 ||
924 (baselen
&& pathname
[baselen
] != '/') ||
925 fspathncmp(pathname
, base
, baselen
))
928 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
929 name
= pathname
+ pathlen
- namelen
;
933 * if the non-wildcard part is longer than the
934 * remaining pathname, surely it cannot match.
936 if (prefix
> namelen
)
939 if (fspathncmp(pattern
, name
, prefix
))
942 patternlen
-= prefix
;
947 * If the whole pattern did not have a wildcard,
948 * then our prefix match is all we need; we
949 * do not need to call fnmatch at all.
951 if (!patternlen
&& !namelen
)
955 return fnmatch_icase_mem(pattern
, patternlen
,
961 * Scan the given exclude list in reverse to see whether pathname
962 * should be ignored. The first match (i.e. the last on the list), if
963 * any, determines the fate. Returns the exclude_list element which
964 * matched, or NULL for undecided.
966 static struct exclude
*last_exclude_matching_from_list(const char *pathname
,
968 const char *basename
,
970 struct exclude_list
*el
)
972 struct exclude
*exc
= NULL
; /* undecided */
976 return NULL
; /* undefined */
978 for (i
= el
->nr
- 1; 0 <= i
; i
--) {
979 struct exclude
*x
= el
->excludes
[i
];
980 const char *exclude
= x
->pattern
;
981 int prefix
= x
->nowildcardlen
;
983 if (x
->flags
& EXC_FLAG_MUSTBEDIR
) {
984 if (*dtype
== DT_UNKNOWN
)
985 *dtype
= get_dtype(NULL
, pathname
, pathlen
);
986 if (*dtype
!= DT_DIR
)
990 if (x
->flags
& EXC_FLAG_NODIR
) {
991 if (match_basename(basename
,
992 pathlen
- (basename
- pathname
),
993 exclude
, prefix
, x
->patternlen
,
1001 assert(x
->baselen
== 0 || x
->base
[x
->baselen
- 1] == '/');
1002 if (match_pathname(pathname
, pathlen
,
1003 x
->base
, x
->baselen
? x
->baselen
- 1 : 0,
1004 exclude
, prefix
, x
->patternlen
, x
->flags
)) {
1013 * Scan the list and let the last match determine the fate.
1014 * Return 1 for exclude, 0 for include and -1 for undecided.
1016 int is_excluded_from_list(const char *pathname
,
1017 int pathlen
, const char *basename
, int *dtype
,
1018 struct exclude_list
*el
)
1020 struct exclude
*exclude
;
1021 exclude
= last_exclude_matching_from_list(pathname
, pathlen
, basename
, dtype
, el
);
1023 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1024 return -1; /* undecided */
1027 static struct exclude
*last_exclude_matching_from_lists(struct dir_struct
*dir
,
1028 const char *pathname
, int pathlen
, const char *basename
,
1032 struct exclude_list_group
*group
;
1033 struct exclude
*exclude
;
1034 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
1035 group
= &dir
->exclude_list_group
[i
];
1036 for (j
= group
->nr
- 1; j
>= 0; j
--) {
1037 exclude
= last_exclude_matching_from_list(
1038 pathname
, pathlen
, basename
, dtype_p
,
1048 * Loads the per-directory exclude list for the substring of base
1049 * which has a char length of baselen.
1051 static void prep_exclude(struct dir_struct
*dir
, const char *base
, int baselen
)
1053 struct exclude_list_group
*group
;
1054 struct exclude_list
*el
;
1055 struct exclude_stack
*stk
= NULL
;
1056 struct untracked_cache_dir
*untracked
;
1059 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1062 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1063 * which originate from directories not in the prefix of the
1064 * path being checked.
1066 while ((stk
= dir
->exclude_stack
) != NULL
) {
1067 if (stk
->baselen
<= baselen
&&
1068 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1070 el
= &group
->el
[dir
->exclude_stack
->exclude_ix
];
1071 dir
->exclude_stack
= stk
->prev
;
1072 dir
->exclude
= NULL
;
1073 free((char *)el
->src
); /* see strbuf_detach() below */
1074 clear_exclude_list(el
);
1079 /* Skip traversing into sub directories if the parent is excluded */
1084 * Lazy initialization. All call sites currently just
1085 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1086 * them seems lots of work for little benefit.
1088 if (!dir
->basebuf
.buf
)
1089 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1091 /* Read from the parent directories and push them down. */
1092 current
= stk
? stk
->baselen
: -1;
1093 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1095 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1099 while (current
< baselen
) {
1101 struct sha1_stat sha1_stat
;
1103 stk
= xcalloc(1, sizeof(*stk
));
1108 cp
= strchr(base
+ current
+ 1, '/');
1110 die("oops in prep_exclude");
1113 lookup_untracked(dir
->untracked
, untracked
,
1115 cp
- base
- current
);
1117 stk
->prev
= dir
->exclude_stack
;
1118 stk
->baselen
= cp
- base
;
1119 stk
->exclude_ix
= group
->nr
;
1120 stk
->ucd
= untracked
;
1121 el
= add_exclude_list(dir
, EXC_DIRS
, NULL
);
1122 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1123 assert(stk
->baselen
== dir
->basebuf
.len
);
1125 /* Abort if the directory is excluded */
1128 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1129 dir
->exclude
= last_exclude_matching_from_lists(dir
,
1130 dir
->basebuf
.buf
, stk
->baselen
- 1,
1131 dir
->basebuf
.buf
+ current
, &dt
);
1132 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1134 dir
->exclude
->flags
& EXC_FLAG_NEGATIVE
)
1135 dir
->exclude
= NULL
;
1137 dir
->exclude_stack
= stk
;
1142 /* Try to read per-directory file */
1143 hashclr(sha1_stat
.sha1
);
1144 sha1_stat
.valid
= 0;
1145 if (dir
->exclude_per_dir
&&
1147 * If we know that no files have been added in
1148 * this directory (i.e. valid_cached_dir() has
1149 * been executed and set untracked->valid) ..
1151 (!untracked
|| !untracked
->valid
||
1153 * .. and .gitignore does not exist before
1154 * (i.e. null exclude_sha1). Then we can skip
1155 * loading .gitignore, which would result in
1158 !is_null_sha1(untracked
->exclude_sha1
))) {
1160 * dir->basebuf gets reused by the traversal, but we
1161 * need fname to remain unchanged to ensure the src
1162 * member of each struct exclude correctly
1163 * back-references its source file. Other invocations
1164 * of add_exclude_list provide stable strings, so we
1165 * strbuf_detach() and free() here in the caller.
1167 struct strbuf sb
= STRBUF_INIT
;
1168 strbuf_addbuf(&sb
, &dir
->basebuf
);
1169 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1170 el
->src
= strbuf_detach(&sb
, NULL
);
1171 add_excludes(el
->src
, el
->src
, stk
->baselen
, el
, 1,
1172 untracked
? &sha1_stat
: NULL
);
1175 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1176 * will first be called in valid_cached_dir() then maybe many
1177 * times more in last_exclude_matching(). When the cache is
1178 * used, last_exclude_matching() will not be called and
1179 * reading .gitignore content will be a waste.
1181 * So when it's called by valid_cached_dir() and we can get
1182 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1183 * modified on work tree), we could delay reading the
1184 * .gitignore content until we absolutely need it in
1185 * last_exclude_matching(). Be careful about ignore rule
1186 * order, though, if you do that.
1189 hashcmp(sha1_stat
.sha1
, untracked
->exclude_sha1
)) {
1190 invalidate_gitignore(dir
->untracked
, untracked
);
1191 hashcpy(untracked
->exclude_sha1
, sha1_stat
.sha1
);
1193 dir
->exclude_stack
= stk
;
1194 current
= stk
->baselen
;
1196 strbuf_setlen(&dir
->basebuf
, baselen
);
1200 * Loads the exclude lists for the directory containing pathname, then
1201 * scans all exclude lists to determine whether pathname is excluded.
1202 * Returns the exclude_list element which matched, or NULL for
1205 struct exclude
*last_exclude_matching(struct dir_struct
*dir
,
1206 const char *pathname
,
1209 int pathlen
= strlen(pathname
);
1210 const char *basename
= strrchr(pathname
, '/');
1211 basename
= (basename
) ? basename
+1 : pathname
;
1213 prep_exclude(dir
, pathname
, basename
-pathname
);
1216 return dir
->exclude
;
1218 return last_exclude_matching_from_lists(dir
, pathname
, pathlen
,
1223 * Loads the exclude lists for the directory containing pathname, then
1224 * scans all exclude lists to determine whether pathname is excluded.
1225 * Returns 1 if true, otherwise 0.
1227 int is_excluded(struct dir_struct
*dir
, const char *pathname
, int *dtype_p
)
1229 struct exclude
*exclude
=
1230 last_exclude_matching(dir
, pathname
, dtype_p
);
1232 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1236 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1238 struct dir_entry
*ent
;
1240 FLEX_ALLOC_MEM(ent
, name
, pathname
, len
);
1245 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
, const char *pathname
, int len
)
1247 if (cache_file_exists(pathname
, len
, ignore_case
))
1250 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1251 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1254 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
, const char *pathname
, int len
)
1256 if (!cache_name_is_other(pathname
, len
))
1259 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1260 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1264 index_nonexistent
= 0,
1270 * Do not use the alphabetically sorted index to look up
1271 * the directory name; instead, use the case insensitive
1274 static enum exist_status
directory_exists_in_index_icase(const char *dirname
, int len
)
1276 struct cache_entry
*ce
;
1278 if (cache_dir_exists(dirname
, len
))
1279 return index_directory
;
1281 ce
= cache_file_exists(dirname
, len
, ignore_case
);
1282 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1283 return index_gitdir
;
1285 return index_nonexistent
;
1289 * The index sorts alphabetically by entry name, which
1290 * means that a gitlink sorts as '\0' at the end, while
1291 * a directory (which is defined not as an entry, but as
1292 * the files it contains) will sort with the '/' at the
1295 static enum exist_status
directory_exists_in_index(const char *dirname
, int len
)
1300 return directory_exists_in_index_icase(dirname
, len
);
1302 pos
= cache_name_pos(dirname
, len
);
1305 while (pos
< active_nr
) {
1306 const struct cache_entry
*ce
= active_cache
[pos
++];
1307 unsigned char endchar
;
1309 if (strncmp(ce
->name
, dirname
, len
))
1311 endchar
= ce
->name
[len
];
1315 return index_directory
;
1316 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1317 return index_gitdir
;
1319 return index_nonexistent
;
1323 * When we find a directory when traversing the filesystem, we
1324 * have three distinct cases:
1327 * - see it as a directory
1330 * and which one we choose depends on a combination of existing
1331 * git index contents and the flags passed into the directory
1332 * traversal routine.
1334 * Case 1: If we *already* have entries in the index under that
1335 * directory name, we always recurse into the directory to see
1338 * Case 2: If we *already* have that directory name as a gitlink,
1339 * we always continue to see it as a gitlink, regardless of whether
1340 * there is an actual git directory there or not (it might not
1341 * be checked out as a subproject!)
1343 * Case 3: if we didn't have it in the index previously, we
1344 * have a few sub-cases:
1346 * (a) if "show_other_directories" is true, we show it as
1347 * just a directory, unless "hide_empty_directories" is
1348 * also true, in which case we need to check if it contains any
1349 * untracked and / or ignored files.
1350 * (b) if it looks like a git directory, and we don't have
1351 * 'no_gitlinks' set we treat it as a gitlink, and show it
1353 * (c) otherwise, we recurse into it.
1355 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1356 struct untracked_cache_dir
*untracked
,
1357 const char *dirname
, int len
, int baselen
, int exclude
,
1358 const struct pathspec
*pathspec
)
1360 /* The "len-1" is to strip the final '/' */
1361 switch (directory_exists_in_index(dirname
, len
-1)) {
1362 case index_directory
:
1363 return path_recurse
;
1368 case index_nonexistent
:
1369 if (dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)
1371 if (!(dir
->flags
& DIR_NO_GITLINKS
)) {
1372 unsigned char sha1
[20];
1373 if (resolve_gitlink_ref(dirname
, "HEAD", sha1
) == 0)
1374 return path_untracked
;
1376 return path_recurse
;
1379 /* This is the "show_other_directories" case */
1381 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1382 return exclude
? path_excluded
: path_untracked
;
1384 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1385 dirname
+ baselen
, len
- baselen
);
1386 return read_directory_recursive(dir
, dirname
, len
,
1387 untracked
, 1, pathspec
);
1391 * This is an inexact early pruning of any recursive directory
1392 * reading - if the path cannot possibly be in the pathspec,
1393 * return true, and we'll skip it early.
1395 static int simplify_away(const char *path
, int pathlen
,
1396 const struct pathspec
*pathspec
)
1400 if (!pathspec
|| !pathspec
->nr
)
1403 GUARD_PATHSPEC(pathspec
,
1412 for (i
= 0; i
< pathspec
->nr
; i
++) {
1413 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1414 int len
= item
->nowildcard_len
;
1418 if (!ps_strncmp(item
, item
->match
, path
, len
))
1426 * This function tells us whether an excluded path matches a
1427 * list of "interesting" pathspecs. That is, whether a path matched
1428 * by any of the pathspecs could possibly be ignored by excluding
1429 * the specified path. This can happen if:
1431 * 1. the path is mentioned explicitly in the pathspec
1433 * 2. the path is a directory prefix of some element in the
1436 static int exclude_matches_pathspec(const char *path
, int pathlen
,
1437 const struct pathspec
*pathspec
)
1441 if (!pathspec
|| !pathspec
->nr
)
1444 GUARD_PATHSPEC(pathspec
,
1452 for (i
= 0; i
< pathspec
->nr
; i
++) {
1453 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1454 int len
= item
->nowildcard_len
;
1456 if (len
== pathlen
&&
1457 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1459 if (len
> pathlen
&&
1460 item
->match
[pathlen
] == '/' &&
1461 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1467 static int get_index_dtype(const char *path
, int len
)
1470 const struct cache_entry
*ce
;
1472 ce
= cache_file_exists(path
, len
, 0);
1474 if (!ce_uptodate(ce
))
1476 if (S_ISGITLINK(ce
->ce_mode
))
1479 * Nobody actually cares about the
1480 * difference between DT_LNK and DT_REG
1485 /* Try to look it up as a directory */
1486 pos
= cache_name_pos(path
, len
);
1490 while (pos
< active_nr
) {
1491 ce
= active_cache
[pos
++];
1492 if (strncmp(ce
->name
, path
, len
))
1494 if (ce
->name
[len
] > '/')
1496 if (ce
->name
[len
] < '/')
1498 if (!ce_uptodate(ce
))
1499 break; /* continue? */
1505 static int get_dtype(struct dirent
*de
, const char *path
, int len
)
1507 int dtype
= de
? DTYPE(de
) : DT_UNKNOWN
;
1510 if (dtype
!= DT_UNKNOWN
)
1512 dtype
= get_index_dtype(path
, len
);
1513 if (dtype
!= DT_UNKNOWN
)
1515 if (lstat(path
, &st
))
1517 if (S_ISREG(st
.st_mode
))
1519 if (S_ISDIR(st
.st_mode
))
1521 if (S_ISLNK(st
.st_mode
))
1526 static enum path_treatment
treat_one_path(struct dir_struct
*dir
,
1527 struct untracked_cache_dir
*untracked
,
1528 struct strbuf
*path
,
1530 const struct pathspec
*pathspec
,
1531 int dtype
, struct dirent
*de
)
1534 int has_path_in_index
= !!cache_file_exists(path
->buf
, path
->len
, ignore_case
);
1536 if (dtype
== DT_UNKNOWN
)
1537 dtype
= get_dtype(de
, path
->buf
, path
->len
);
1539 /* Always exclude indexed files */
1540 if (dtype
!= DT_DIR
&& has_path_in_index
)
1544 * When we are looking at a directory P in the working tree,
1545 * there are three cases:
1547 * (1) P exists in the index. Everything inside the directory P in
1548 * the working tree needs to go when P is checked out from the
1551 * (2) P does not exist in the index, but there is P/Q in the index.
1552 * We know P will stay a directory when we check out the contents
1553 * of the index, but we do not know yet if there is a directory
1554 * P/Q in the working tree to be killed, so we need to recurse.
1556 * (3) P does not exist in the index, and there is no P/Q in the index
1557 * to require P to be a directory, either. Only in this case, we
1558 * know that everything inside P will not be killed without
1561 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
1562 (dtype
== DT_DIR
) &&
1563 !has_path_in_index
&&
1564 (directory_exists_in_index(path
->buf
, path
->len
) == index_nonexistent
))
1567 exclude
= is_excluded(dir
, path
->buf
, &dtype
);
1570 * Excluded? If we don't explicitly want to show
1571 * ignored files, ignore it
1573 if (exclude
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
1574 return path_excluded
;
1580 strbuf_addch(path
, '/');
1581 return treat_directory(dir
, untracked
, path
->buf
, path
->len
,
1582 baselen
, exclude
, pathspec
);
1585 return exclude
? path_excluded
: path_untracked
;
1589 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
1590 struct untracked_cache_dir
*untracked
,
1591 struct cached_dir
*cdir
,
1592 struct strbuf
*path
,
1594 const struct pathspec
*pathspec
)
1596 strbuf_setlen(path
, baselen
);
1598 strbuf_addstr(path
, cdir
->file
);
1599 return path_untracked
;
1601 strbuf_addstr(path
, cdir
->ucd
->name
);
1602 /* treat_one_path() does this before it calls treat_directory() */
1603 strbuf_complete(path
, '/');
1604 if (cdir
->ucd
->check_only
)
1606 * check_only is set as a result of treat_directory() getting
1607 * to its bottom. Verify again the same set of directories
1608 * with check_only set.
1610 return read_directory_recursive(dir
, path
->buf
, path
->len
,
1611 cdir
->ucd
, 1, pathspec
);
1613 * We get path_recurse in the first run when
1614 * directory_exists_in_index() returns index_nonexistent. We
1615 * are sure that new changes in the index does not impact the
1616 * outcome. Return now.
1618 return path_recurse
;
1621 static enum path_treatment
treat_path(struct dir_struct
*dir
,
1622 struct untracked_cache_dir
*untracked
,
1623 struct cached_dir
*cdir
,
1624 struct strbuf
*path
,
1626 const struct pathspec
*pathspec
)
1629 struct dirent
*de
= cdir
->de
;
1632 return treat_path_fast(dir
, untracked
, cdir
, path
,
1634 if (is_dot_or_dotdot(de
->d_name
) || !strcmp(de
->d_name
, ".git"))
1636 strbuf_setlen(path
, baselen
);
1637 strbuf_addstr(path
, de
->d_name
);
1638 if (simplify_away(path
->buf
, path
->len
, pathspec
))
1642 return treat_one_path(dir
, untracked
, path
, baselen
, pathspec
, dtype
, de
);
1645 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
1649 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
1650 dir
->untracked_alloc
);
1651 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
1654 static int valid_cached_dir(struct dir_struct
*dir
,
1655 struct untracked_cache_dir
*untracked
,
1656 struct strbuf
*path
,
1664 if (stat(path
->len
? path
->buf
: ".", &st
)) {
1665 invalidate_directory(dir
->untracked
, untracked
);
1666 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
1669 if (!untracked
->valid
||
1670 match_stat_data_racy(&the_index
, &untracked
->stat_data
, &st
)) {
1671 if (untracked
->valid
)
1672 invalidate_directory(dir
->untracked
, untracked
);
1673 fill_stat_data(&untracked
->stat_data
, &st
);
1677 if (untracked
->check_only
!= !!check_only
) {
1678 invalidate_directory(dir
->untracked
, untracked
);
1683 * prep_exclude will be called eventually on this directory,
1684 * but it's called much later in last_exclude_matching(). We
1685 * need it now to determine the validity of the cache for this
1686 * path. The next calls will be nearly no-op, the way
1687 * prep_exclude() is designed.
1689 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
1690 strbuf_addch(path
, '/');
1691 prep_exclude(dir
, path
->buf
, path
->len
);
1692 strbuf_setlen(path
, path
->len
- 1);
1694 prep_exclude(dir
, path
->buf
, path
->len
);
1696 /* hopefully prep_exclude() haven't invalidated this entry... */
1697 return untracked
->valid
;
1700 static int open_cached_dir(struct cached_dir
*cdir
,
1701 struct dir_struct
*dir
,
1702 struct untracked_cache_dir
*untracked
,
1703 struct strbuf
*path
,
1706 memset(cdir
, 0, sizeof(*cdir
));
1707 cdir
->untracked
= untracked
;
1708 if (valid_cached_dir(dir
, untracked
, path
, check_only
))
1710 cdir
->fdir
= opendir(path
->len
? path
->buf
: ".");
1712 dir
->untracked
->dir_opened
++;
1718 static int read_cached_dir(struct cached_dir
*cdir
)
1721 cdir
->de
= readdir(cdir
->fdir
);
1726 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
1727 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
1737 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
1738 struct untracked_cache_dir
*d
= cdir
->untracked
;
1739 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
1745 static void close_cached_dir(struct cached_dir
*cdir
)
1748 closedir(cdir
->fdir
);
1750 * We have gone through this directory and found no untracked
1751 * entries. Mark it valid.
1753 if (cdir
->untracked
) {
1754 cdir
->untracked
->valid
= 1;
1755 cdir
->untracked
->recurse
= 1;
1760 * Read a directory tree. We currently ignore anything but
1761 * directories, regular files and symlinks. That's because git
1762 * doesn't handle them at all yet. Maybe that will change some
1765 * Also, we ignore the name ".git" (even if it is not a directory).
1766 * That likely will not change.
1768 * Returns the most significant path_treatment value encountered in the scan.
1770 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
1771 const char *base
, int baselen
,
1772 struct untracked_cache_dir
*untracked
, int check_only
,
1773 const struct pathspec
*pathspec
)
1775 struct cached_dir cdir
;
1776 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
1777 struct strbuf path
= STRBUF_INIT
;
1779 strbuf_add(&path
, base
, baselen
);
1781 if (open_cached_dir(&cdir
, dir
, untracked
, &path
, check_only
))
1785 untracked
->check_only
= !!check_only
;
1787 while (!read_cached_dir(&cdir
)) {
1788 /* check how the file or directory should be treated */
1789 state
= treat_path(dir
, untracked
, &cdir
, &path
,
1792 if (state
> dir_state
)
1795 /* recurse into subdir if instructed by treat_path */
1796 if (state
== path_recurse
) {
1797 struct untracked_cache_dir
*ud
;
1798 ud
= lookup_untracked(dir
->untracked
, untracked
,
1800 path
.len
- baselen
);
1802 read_directory_recursive(dir
, path
.buf
,
1804 check_only
, pathspec
);
1805 if (subdir_state
> dir_state
)
1806 dir_state
= subdir_state
;
1810 /* abort early if maximum state has been reached */
1811 if (dir_state
== path_untracked
) {
1813 add_untracked(untracked
, path
.buf
+ baselen
);
1816 /* skip the dir_add_* part */
1820 /* add the path to the appropriate result list */
1823 if (dir
->flags
& DIR_SHOW_IGNORED
)
1824 dir_add_name(dir
, path
.buf
, path
.len
);
1825 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
1826 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
1827 exclude_matches_pathspec(path
.buf
, path
.len
,
1829 dir_add_ignored(dir
, path
.buf
, path
.len
);
1832 case path_untracked
:
1833 if (dir
->flags
& DIR_SHOW_IGNORED
)
1835 dir_add_name(dir
, path
.buf
, path
.len
);
1837 add_untracked(untracked
, path
.buf
+ baselen
);
1844 close_cached_dir(&cdir
);
1846 strbuf_release(&path
);
1851 static int cmp_name(const void *p1
, const void *p2
)
1853 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
1854 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
1856 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
1859 static int treat_leading_path(struct dir_struct
*dir
,
1860 const char *path
, int len
,
1861 const struct pathspec
*pathspec
)
1863 struct strbuf sb
= STRBUF_INIT
;
1864 int baselen
, rc
= 0;
1866 int old_flags
= dir
->flags
;
1868 while (len
&& path
[len
- 1] == '/')
1873 dir
->flags
&= ~DIR_SHOW_OTHER_DIRECTORIES
;
1875 cp
= path
+ baselen
+ !!baselen
;
1876 cp
= memchr(cp
, '/', path
+ len
- cp
);
1880 baselen
= cp
- path
;
1881 strbuf_setlen(&sb
, 0);
1882 strbuf_add(&sb
, path
, baselen
);
1883 if (!is_directory(sb
.buf
))
1885 if (simplify_away(sb
.buf
, sb
.len
, pathspec
))
1887 if (treat_one_path(dir
, NULL
, &sb
, baselen
, pathspec
,
1888 DT_DIR
, NULL
) == path_none
)
1889 break; /* do not recurse into it */
1890 if (len
<= baselen
) {
1892 break; /* finished checking */
1895 strbuf_release(&sb
);
1896 dir
->flags
= old_flags
;
1900 static const char *get_ident_string(void)
1902 static struct strbuf sb
= STRBUF_INIT
;
1907 if (uname(&uts
) < 0)
1908 die_errno(_("failed to get kernel name and information"));
1909 strbuf_addf(&sb
, "Location %s, system %s", get_git_work_tree(),
1914 static int ident_in_untracked(const struct untracked_cache
*uc
)
1917 * Previous git versions may have saved many NUL separated
1918 * strings in the "ident" field, but it is insane to manage
1919 * many locations, so just take care of the first one.
1922 return !strcmp(uc
->ident
.buf
, get_ident_string());
1925 static void set_untracked_ident(struct untracked_cache
*uc
)
1927 strbuf_reset(&uc
->ident
);
1928 strbuf_addstr(&uc
->ident
, get_ident_string());
1931 * This strbuf used to contain a list of NUL separated
1932 * strings, so save NUL too for backward compatibility.
1934 strbuf_addch(&uc
->ident
, 0);
1937 static void new_untracked_cache(struct index_state
*istate
)
1939 struct untracked_cache
*uc
= xcalloc(1, sizeof(*uc
));
1940 strbuf_init(&uc
->ident
, 100);
1941 uc
->exclude_per_dir
= ".gitignore";
1942 /* should be the same flags used by git-status */
1943 uc
->dir_flags
= DIR_SHOW_OTHER_DIRECTORIES
| DIR_HIDE_EMPTY_DIRECTORIES
;
1944 set_untracked_ident(uc
);
1945 istate
->untracked
= uc
;
1946 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1949 void add_untracked_cache(struct index_state
*istate
)
1951 if (!istate
->untracked
) {
1952 new_untracked_cache(istate
);
1954 if (!ident_in_untracked(istate
->untracked
)) {
1955 free_untracked_cache(istate
->untracked
);
1956 new_untracked_cache(istate
);
1961 void remove_untracked_cache(struct index_state
*istate
)
1963 if (istate
->untracked
) {
1964 free_untracked_cache(istate
->untracked
);
1965 istate
->untracked
= NULL
;
1966 istate
->cache_changed
|= UNTRACKED_CHANGED
;
1970 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
1972 const struct pathspec
*pathspec
)
1974 struct untracked_cache_dir
*root
;
1976 if (!dir
->untracked
|| getenv("GIT_DISABLE_UNTRACKED_CACHE"))
1980 * We only support $GIT_DIR/info/exclude and core.excludesfile
1981 * as the global ignore rule files. Any other additions
1982 * (e.g. from command line) invalidate the cache. This
1983 * condition also catches running setup_standard_excludes()
1984 * before setting dir->untracked!
1986 if (dir
->unmanaged_exclude_files
)
1990 * Optimize for the main use case only: whole-tree git
1991 * status. More work involved in treat_leading_path() if we
1992 * use cache on just a subset of the worktree. pathspec
1993 * support could make the matter even worse.
1995 if (base_len
|| (pathspec
&& pathspec
->nr
))
1998 /* Different set of flags may produce different results */
1999 if (dir
->flags
!= dir
->untracked
->dir_flags
||
2001 * See treat_directory(), case index_nonexistent. Without
2002 * this flag, we may need to also cache .git file content
2003 * for the resolve_gitlink_ref() call, which we don't.
2005 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
2006 /* We don't support collecting ignore files */
2007 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
2008 DIR_COLLECT_IGNORED
)))
2012 * If we use .gitignore in the cache and now you change it to
2013 * .gitexclude, everything will go wrong.
2015 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
2016 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
2020 * EXC_CMDL is not considered in the cache. If people set it,
2023 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
2026 if (!ident_in_untracked(dir
->untracked
)) {
2027 warning(_("Untracked cache is disabled on this system or location."));
2031 if (!dir
->untracked
->root
) {
2032 const int len
= sizeof(*dir
->untracked
->root
);
2033 dir
->untracked
->root
= xmalloc(len
);
2034 memset(dir
->untracked
->root
, 0, len
);
2037 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2038 root
= dir
->untracked
->root
;
2039 if (hashcmp(dir
->ss_info_exclude
.sha1
,
2040 dir
->untracked
->ss_info_exclude
.sha1
)) {
2041 invalidate_gitignore(dir
->untracked
, root
);
2042 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2044 if (hashcmp(dir
->ss_excludes_file
.sha1
,
2045 dir
->untracked
->ss_excludes_file
.sha1
)) {
2046 invalidate_gitignore(dir
->untracked
, root
);
2047 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2050 /* Make sure this directory is not dropped out at saving phase */
2055 int read_directory(struct dir_struct
*dir
, const char *path
,
2056 int len
, const struct pathspec
*pathspec
)
2058 struct untracked_cache_dir
*untracked
;
2060 if (has_symlink_leading_path(path
, len
))
2063 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2066 * make sure untracked cache code path is disabled,
2067 * e.g. prep_exclude()
2069 dir
->untracked
= NULL
;
2070 if (!len
|| treat_leading_path(dir
, path
, len
, pathspec
))
2071 read_directory_recursive(dir
, path
, len
, untracked
, 0, pathspec
);
2072 QSORT(dir
->entries
, dir
->nr
, cmp_name
);
2073 QSORT(dir
->ignored
, dir
->ignored_nr
, cmp_name
);
2074 if (dir
->untracked
) {
2075 static struct trace_key trace_untracked_stats
= TRACE_KEY_INIT(UNTRACKED_STATS
);
2076 trace_printf_key(&trace_untracked_stats
,
2077 "node creation: %u\n"
2078 "gitignore invalidation: %u\n"
2079 "directory invalidation: %u\n"
2081 dir
->untracked
->dir_created
,
2082 dir
->untracked
->gitignore_invalidated
,
2083 dir
->untracked
->dir_invalidated
,
2084 dir
->untracked
->dir_opened
);
2085 if (dir
->untracked
== the_index
.untracked
&&
2086 (dir
->untracked
->dir_opened
||
2087 dir
->untracked
->gitignore_invalidated
||
2088 dir
->untracked
->dir_invalidated
))
2089 the_index
.cache_changed
|= UNTRACKED_CHANGED
;
2090 if (dir
->untracked
!= the_index
.untracked
) {
2091 free(dir
->untracked
);
2092 dir
->untracked
= NULL
;
2098 int file_exists(const char *f
)
2101 return lstat(f
, &sb
) == 0;
2104 static int cmp_icase(char a
, char b
)
2109 return toupper(a
) - toupper(b
);
2114 * Given two normalized paths (a trailing slash is ok), if subdir is
2115 * outside dir, return -1. Otherwise return the offset in subdir that
2116 * can be used as relative path to dir.
2118 int dir_inside_of(const char *subdir
, const char *dir
)
2122 assert(dir
&& subdir
&& *dir
&& *subdir
);
2124 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2130 /* hel[p]/me vs hel[l]/yeah */
2131 if (*dir
&& *subdir
)
2135 return !*dir
? offset
: -1; /* same dir */
2137 /* foo/[b]ar vs foo/[] */
2138 if (is_dir_sep(dir
[-1]))
2139 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2141 /* foo[/]bar vs foo[] */
2142 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2145 int is_inside_dir(const char *dir
)
2154 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2159 int is_empty_dir(const char *path
)
2161 DIR *dir
= opendir(path
);
2168 while ((e
= readdir(dir
)) != NULL
)
2169 if (!is_dot_or_dotdot(e
->d_name
)) {
2178 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2182 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2183 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2184 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2185 unsigned char submodule_head
[20];
2187 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2188 !resolve_gitlink_ref(path
->buf
, "HEAD", submodule_head
)) {
2189 /* Do not descend and nuke a nested git work tree. */
2195 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2196 dir
= opendir(path
->buf
);
2198 if (errno
== ENOENT
)
2199 return keep_toplevel
? -1 : 0;
2200 else if (errno
== EACCES
&& !keep_toplevel
)
2202 * An empty dir could be removable even if it
2205 return rmdir(path
->buf
);
2209 strbuf_complete(path
, '/');
2212 while ((e
= readdir(dir
)) != NULL
) {
2214 if (is_dot_or_dotdot(e
->d_name
))
2217 strbuf_setlen(path
, len
);
2218 strbuf_addstr(path
, e
->d_name
);
2219 if (lstat(path
->buf
, &st
)) {
2220 if (errno
== ENOENT
)
2222 * file disappeared, which is what we
2227 } else if (S_ISDIR(st
.st_mode
)) {
2228 if (!remove_dir_recurse(path
, flag
, &kept_down
))
2229 continue; /* happy */
2230 } else if (!only_empty
&&
2231 (!unlink(path
->buf
) || errno
== ENOENT
)) {
2232 continue; /* happy, too */
2235 /* path too long, stat fails, or non-directory still exists */
2241 strbuf_setlen(path
, original_len
);
2242 if (!ret
&& !keep_toplevel
&& !kept_down
)
2243 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
2246 * report the uplevel that it is not an error that we
2247 * did not rmdir() our directory.
2253 int remove_dir_recursively(struct strbuf
*path
, int flag
)
2255 return remove_dir_recurse(path
, flag
, NULL
);
2258 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
2260 void setup_standard_excludes(struct dir_struct
*dir
)
2262 dir
->exclude_per_dir
= ".gitignore";
2264 /* core.excludefile defaulting to $XDG_HOME/git/ignore */
2266 excludes_file
= xdg_config_home("ignore");
2267 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
2268 add_excludes_from_file_1(dir
, excludes_file
,
2269 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
2271 /* per repository user preference */
2272 if (startup_info
->have_repository
) {
2273 const char *path
= git_path_info_exclude();
2274 if (!access_or_warn(path
, R_OK
, 0))
2275 add_excludes_from_file_1(dir
, path
,
2276 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
2280 int remove_path(const char *name
)
2284 if (unlink(name
) && errno
!= ENOENT
&& errno
!= ENOTDIR
)
2287 slash
= strrchr(name
, '/');
2289 char *dirs
= xstrdup(name
);
2290 slash
= dirs
+ (slash
- name
);
2293 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
2300 * Frees memory within dir which was allocated for exclude lists and
2301 * the exclude_stack. Does not free dir itself.
2303 void clear_directory(struct dir_struct
*dir
)
2306 struct exclude_list_group
*group
;
2307 struct exclude_list
*el
;
2308 struct exclude_stack
*stk
;
2310 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
2311 group
= &dir
->exclude_list_group
[i
];
2312 for (j
= 0; j
< group
->nr
; j
++) {
2315 free((char *)el
->src
);
2316 clear_exclude_list(el
);
2321 stk
= dir
->exclude_stack
;
2323 struct exclude_stack
*prev
= stk
->prev
;
2327 strbuf_release(&dir
->basebuf
);
2330 struct ondisk_untracked_cache
{
2331 struct stat_data info_exclude_stat
;
2332 struct stat_data excludes_file_stat
;
2334 unsigned char info_exclude_sha1
[20];
2335 unsigned char excludes_file_sha1
[20];
2336 char exclude_per_dir
[FLEX_ARRAY
];
2339 #define ouc_size(len) (offsetof(struct ondisk_untracked_cache, exclude_per_dir) + len + 1)
2342 int index
; /* number of written untracked_cache_dir */
2343 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
2344 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
2345 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
2347 struct strbuf sb_stat
;
2348 struct strbuf sb_sha1
;
2351 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
2353 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
2354 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
2355 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
2356 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
2357 to
->sd_dev
= htonl(from
->sd_dev
);
2358 to
->sd_ino
= htonl(from
->sd_ino
);
2359 to
->sd_uid
= htonl(from
->sd_uid
);
2360 to
->sd_gid
= htonl(from
->sd_gid
);
2361 to
->sd_size
= htonl(from
->sd_size
);
2364 static void write_one_dir(struct untracked_cache_dir
*untracked
,
2365 struct write_data
*wd
)
2367 struct stat_data stat_data
;
2368 struct strbuf
*out
= &wd
->out
;
2369 unsigned char intbuf
[16];
2370 unsigned int intlen
, value
;
2371 int i
= wd
->index
++;
2374 * untracked_nr should be reset whenever valid is clear, but
2377 if (!untracked
->valid
) {
2378 untracked
->untracked_nr
= 0;
2379 untracked
->check_only
= 0;
2382 if (untracked
->check_only
)
2383 ewah_set(wd
->check_only
, i
);
2384 if (untracked
->valid
) {
2385 ewah_set(wd
->valid
, i
);
2386 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
2387 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
2389 if (!is_null_sha1(untracked
->exclude_sha1
)) {
2390 ewah_set(wd
->sha1_valid
, i
);
2391 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_sha1
, 20);
2394 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
2395 strbuf_add(out
, intbuf
, intlen
);
2397 /* skip non-recurse directories */
2398 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
2399 if (untracked
->dirs
[i
]->recurse
)
2401 intlen
= encode_varint(value
, intbuf
);
2402 strbuf_add(out
, intbuf
, intlen
);
2404 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
2406 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
2407 strbuf_add(out
, untracked
->untracked
[i
],
2408 strlen(untracked
->untracked
[i
]) + 1);
2410 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
2411 if (untracked
->dirs
[i
]->recurse
)
2412 write_one_dir(untracked
->dirs
[i
], wd
);
2415 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
2417 struct ondisk_untracked_cache
*ouc
;
2418 struct write_data wd
;
2419 unsigned char varbuf
[16];
2421 size_t len
= strlen(untracked
->exclude_per_dir
);
2423 FLEX_ALLOC_MEM(ouc
, exclude_per_dir
, untracked
->exclude_per_dir
, len
);
2424 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
2425 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
2426 hashcpy(ouc
->info_exclude_sha1
, untracked
->ss_info_exclude
.sha1
);
2427 hashcpy(ouc
->excludes_file_sha1
, untracked
->ss_excludes_file
.sha1
);
2428 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
2430 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
2431 strbuf_add(out
, varbuf
, varint_len
);
2432 strbuf_addbuf(out
, &untracked
->ident
);
2434 strbuf_add(out
, ouc
, ouc_size(len
));
2438 if (!untracked
->root
) {
2439 varint_len
= encode_varint(0, varbuf
);
2440 strbuf_add(out
, varbuf
, varint_len
);
2445 wd
.check_only
= ewah_new();
2446 wd
.valid
= ewah_new();
2447 wd
.sha1_valid
= ewah_new();
2448 strbuf_init(&wd
.out
, 1024);
2449 strbuf_init(&wd
.sb_stat
, 1024);
2450 strbuf_init(&wd
.sb_sha1
, 1024);
2451 write_one_dir(untracked
->root
, &wd
);
2453 varint_len
= encode_varint(wd
.index
, varbuf
);
2454 strbuf_add(out
, varbuf
, varint_len
);
2455 strbuf_addbuf(out
, &wd
.out
);
2456 ewah_serialize_strbuf(wd
.valid
, out
);
2457 ewah_serialize_strbuf(wd
.check_only
, out
);
2458 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
2459 strbuf_addbuf(out
, &wd
.sb_stat
);
2460 strbuf_addbuf(out
, &wd
.sb_sha1
);
2461 strbuf_addch(out
, '\0'); /* safe guard for string lists */
2463 ewah_free(wd
.valid
);
2464 ewah_free(wd
.check_only
);
2465 ewah_free(wd
.sha1_valid
);
2466 strbuf_release(&wd
.out
);
2467 strbuf_release(&wd
.sb_stat
);
2468 strbuf_release(&wd
.sb_sha1
);
2471 static void free_untracked(struct untracked_cache_dir
*ucd
)
2476 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
2477 free_untracked(ucd
->dirs
[i
]);
2478 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
2479 free(ucd
->untracked
[i
]);
2480 free(ucd
->untracked
);
2485 void free_untracked_cache(struct untracked_cache
*uc
)
2488 free_untracked(uc
->root
);
2494 struct untracked_cache_dir
**ucd
;
2495 struct ewah_bitmap
*check_only
;
2496 struct ewah_bitmap
*valid
;
2497 struct ewah_bitmap
*sha1_valid
;
2498 const unsigned char *data
;
2499 const unsigned char *end
;
2502 static void stat_data_from_disk(struct stat_data
*to
, const struct stat_data
*from
)
2504 to
->sd_ctime
.sec
= get_be32(&from
->sd_ctime
.sec
);
2505 to
->sd_ctime
.nsec
= get_be32(&from
->sd_ctime
.nsec
);
2506 to
->sd_mtime
.sec
= get_be32(&from
->sd_mtime
.sec
);
2507 to
->sd_mtime
.nsec
= get_be32(&from
->sd_mtime
.nsec
);
2508 to
->sd_dev
= get_be32(&from
->sd_dev
);
2509 to
->sd_ino
= get_be32(&from
->sd_ino
);
2510 to
->sd_uid
= get_be32(&from
->sd_uid
);
2511 to
->sd_gid
= get_be32(&from
->sd_gid
);
2512 to
->sd_size
= get_be32(&from
->sd_size
);
2515 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
2516 struct read_data
*rd
)
2518 struct untracked_cache_dir ud
, *untracked
;
2519 const unsigned char *next
, *data
= rd
->data
, *end
= rd
->end
;
2523 memset(&ud
, 0, sizeof(ud
));
2526 value
= decode_varint(&next
);
2530 ud
.untracked_alloc
= value
;
2531 ud
.untracked_nr
= value
;
2532 if (ud
.untracked_nr
)
2533 ALLOC_ARRAY(ud
.untracked
, ud
.untracked_nr
);
2537 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&next
);
2540 ALLOC_ARRAY(ud
.dirs
, ud
.dirs_nr
);
2543 len
= strlen((const char *)data
);
2544 next
= data
+ len
+ 1;
2547 *untracked_
= untracked
= xmalloc(st_add(sizeof(*untracked
), len
));
2548 memcpy(untracked
, &ud
, sizeof(ud
));
2549 memcpy(untracked
->name
, data
, len
+ 1);
2552 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
2553 len
= strlen((const char *)data
);
2554 next
= data
+ len
+ 1;
2557 untracked
->untracked
[i
] = xstrdup((const char*)data
);
2561 rd
->ucd
[rd
->index
++] = untracked
;
2564 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
2565 len
= read_one_dir(untracked
->dirs
+ i
, rd
);
2572 static void set_check_only(size_t pos
, void *cb
)
2574 struct read_data
*rd
= cb
;
2575 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2579 static void read_stat(size_t pos
, void *cb
)
2581 struct read_data
*rd
= cb
;
2582 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2583 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
2584 rd
->data
= rd
->end
+ 1;
2587 stat_data_from_disk(&ud
->stat_data
, (struct stat_data
*)rd
->data
);
2588 rd
->data
+= sizeof(struct stat_data
);
2592 static void read_sha1(size_t pos
, void *cb
)
2594 struct read_data
*rd
= cb
;
2595 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2596 if (rd
->data
+ 20 > rd
->end
) {
2597 rd
->data
= rd
->end
+ 1;
2600 hashcpy(ud
->exclude_sha1
, rd
->data
);
2604 static void load_sha1_stat(struct sha1_stat
*sha1_stat
,
2605 const struct stat_data
*stat
,
2606 const unsigned char *sha1
)
2608 stat_data_from_disk(&sha1_stat
->stat
, stat
);
2609 hashcpy(sha1_stat
->sha1
, sha1
);
2610 sha1_stat
->valid
= 1;
2613 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
2615 const struct ondisk_untracked_cache
*ouc
;
2616 struct untracked_cache
*uc
;
2617 struct read_data rd
;
2618 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
2622 if (sz
<= 1 || end
[-1] != '\0')
2626 ident_len
= decode_varint(&next
);
2627 if (next
+ ident_len
> end
)
2629 ident
= (const char *)next
;
2632 ouc
= (const struct ondisk_untracked_cache
*)next
;
2633 if (next
+ ouc_size(0) > end
)
2636 uc
= xcalloc(1, sizeof(*uc
));
2637 strbuf_init(&uc
->ident
, ident_len
);
2638 strbuf_add(&uc
->ident
, ident
, ident_len
);
2639 load_sha1_stat(&uc
->ss_info_exclude
, &ouc
->info_exclude_stat
,
2640 ouc
->info_exclude_sha1
);
2641 load_sha1_stat(&uc
->ss_excludes_file
, &ouc
->excludes_file_stat
,
2642 ouc
->excludes_file_sha1
);
2643 uc
->dir_flags
= get_be32(&ouc
->dir_flags
);
2644 uc
->exclude_per_dir
= xstrdup(ouc
->exclude_per_dir
);
2645 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
2646 next
+= ouc_size(strlen(ouc
->exclude_per_dir
));
2650 len
= decode_varint(&next
);
2651 if (next
> end
|| len
== 0)
2654 rd
.valid
= ewah_new();
2655 rd
.check_only
= ewah_new();
2656 rd
.sha1_valid
= ewah_new();
2660 ALLOC_ARRAY(rd
.ucd
, len
);
2662 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
2666 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
2671 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
2676 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
2680 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
2681 rd
.data
= next
+ len
;
2682 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
2683 ewah_each_bit(rd
.sha1_valid
, read_sha1
, &rd
);
2688 ewah_free(rd
.valid
);
2689 ewah_free(rd
.check_only
);
2690 ewah_free(rd
.sha1_valid
);
2693 free_untracked_cache(uc
);
2699 static void invalidate_one_directory(struct untracked_cache
*uc
,
2700 struct untracked_cache_dir
*ucd
)
2702 uc
->dir_invalidated
++;
2704 ucd
->untracked_nr
= 0;
2708 * Normally when an entry is added or removed from a directory,
2709 * invalidating that directory is enough. No need to touch its
2710 * ancestors. When a directory is shown as "foo/bar/" in git-status
2711 * however, deleting or adding an entry may have cascading effect.
2713 * Say the "foo/bar/file" has become untracked, we need to tell the
2714 * untracked_cache_dir of "foo" that "bar/" is not an untracked
2715 * directory any more (because "bar" is managed by foo as an untracked
2718 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
2719 * was the last untracked entry in the entire "foo", we should show
2720 * "foo/" instead. Which means we have to invalidate past "bar" up to
2723 * This function traverses all directories from root to leaf. If there
2724 * is a chance of one of the above cases happening, we invalidate back
2725 * to root. Otherwise we just invalidate the leaf. There may be a more
2726 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
2727 * detect these cases and avoid unnecessary invalidation, for example,
2728 * checking for the untracked entry named "bar/" in "foo", but for now
2729 * stick to something safe and simple.
2731 static int invalidate_one_component(struct untracked_cache
*uc
,
2732 struct untracked_cache_dir
*dir
,
2733 const char *path
, int len
)
2735 const char *rest
= strchr(path
, '/');
2738 int component_len
= rest
- path
;
2739 struct untracked_cache_dir
*d
=
2740 lookup_untracked(uc
, dir
, path
, component_len
);
2742 invalidate_one_component(uc
, d
, rest
+ 1,
2743 len
- (component_len
+ 1));
2745 invalidate_one_directory(uc
, dir
);
2749 invalidate_one_directory(uc
, dir
);
2750 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
2753 void untracked_cache_invalidate_path(struct index_state
*istate
,
2756 if (!istate
->untracked
|| !istate
->untracked
->root
)
2758 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
2759 path
, strlen(path
));
2762 void untracked_cache_remove_from_index(struct index_state
*istate
,
2765 untracked_cache_invalidate_path(istate
, path
);
2768 void untracked_cache_add_to_index(struct index_state
*istate
,
2771 untracked_cache_invalidate_path(istate
, path
);
2774 /* Update gitfile and core.worktree setting to connect work tree and git dir */
2775 void connect_work_tree_and_git_dir(const char *work_tree_
, const char *git_dir_
)
2777 struct strbuf gitfile_sb
= STRBUF_INIT
;
2778 struct strbuf cfg_sb
= STRBUF_INIT
;
2779 struct strbuf rel_path
= STRBUF_INIT
;
2780 char *git_dir
, *work_tree
;
2782 /* Prepare .git file */
2783 strbuf_addf(&gitfile_sb
, "%s/.git", work_tree_
);
2784 if (safe_create_leading_directories_const(gitfile_sb
.buf
))
2785 die(_("could not create directories for %s"), gitfile_sb
.buf
);
2787 /* Prepare config file */
2788 strbuf_addf(&cfg_sb
, "%s/config", git_dir_
);
2789 if (safe_create_leading_directories_const(cfg_sb
.buf
))
2790 die(_("could not create directories for %s"), cfg_sb
.buf
);
2792 git_dir
= real_pathdup(git_dir_
, 1);
2793 work_tree
= real_pathdup(work_tree_
, 1);
2795 /* Write .git file */
2796 write_file(gitfile_sb
.buf
, "gitdir: %s",
2797 relative_path(git_dir
, work_tree
, &rel_path
));
2798 /* Update core.worktree setting */
2799 git_config_set_in_file(cfg_sb
.buf
, "core.worktree",
2800 relative_path(work_tree
, git_dir
, &rel_path
));
2802 strbuf_release(&gitfile_sb
);
2803 strbuf_release(&cfg_sb
);
2804 strbuf_release(&rel_path
);
2810 * Migrate the git directory of the given path from old_git_dir to new_git_dir.
2812 void relocate_gitdir(const char *path
, const char *old_git_dir
, const char *new_git_dir
)
2814 if (rename(old_git_dir
, new_git_dir
) < 0)
2815 die_errno(_("could not migrate git directory from '%s' to '%s'"),
2816 old_git_dir
, new_git_dir
);
2818 connect_work_tree_and_git_dir(path
, new_git_dir
);