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"
21 #include "fsmonitor.h"
24 * Tells read_directory_recursive how a file or directory should be treated.
25 * Values are ordered by significance, e.g. if a directory contains both
26 * excluded and untracked files, it is listed as untracked because
27 * path_untracked > path_excluded.
37 * Support data structure for our opendir/readdir/closedir wrappers
41 struct untracked_cache_dir
*untracked
;
47 struct untracked_cache_dir
*ucd
;
50 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
51 struct index_state
*istate
, const char *path
, int len
,
52 struct untracked_cache_dir
*untracked
,
53 int check_only
, int stop_at_first_file
, const struct pathspec
*pathspec
);
54 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
55 const char *path
, int len
);
57 int count_slashes(const char *s
)
66 int fspathcmp(const char *a
, const char *b
)
68 return ignore_case
? strcasecmp(a
, b
) : strcmp(a
, b
);
71 int fspathncmp(const char *a
, const char *b
, size_t count
)
73 return ignore_case
? strncasecmp(a
, b
, count
) : strncmp(a
, b
, count
);
76 int git_fnmatch(const struct pathspec_item
*item
,
77 const char *pattern
, const char *string
,
81 if (ps_strncmp(item
, pattern
, string
, prefix
))
86 if (item
->flags
& PATHSPEC_ONESTAR
) {
87 int pattern_len
= strlen(++pattern
);
88 int string_len
= strlen(string
);
89 return string_len
< pattern_len
||
90 ps_strcmp(item
, pattern
,
91 string
+ string_len
- pattern_len
);
93 if (item
->magic
& PATHSPEC_GLOB
)
94 return wildmatch(pattern
, string
,
96 (item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0));
98 /* wildmatch has not learned no FNM_PATHNAME mode yet */
99 return wildmatch(pattern
, string
,
100 item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0);
103 static int fnmatch_icase_mem(const char *pattern
, int patternlen
,
104 const char *string
, int stringlen
,
108 struct strbuf pat_buf
= STRBUF_INIT
;
109 struct strbuf str_buf
= STRBUF_INIT
;
110 const char *use_pat
= pattern
;
111 const char *use_str
= string
;
113 if (pattern
[patternlen
]) {
114 strbuf_add(&pat_buf
, pattern
, patternlen
);
115 use_pat
= pat_buf
.buf
;
117 if (string
[stringlen
]) {
118 strbuf_add(&str_buf
, string
, stringlen
);
119 use_str
= str_buf
.buf
;
123 flags
|= WM_CASEFOLD
;
124 match_status
= wildmatch(use_pat
, use_str
, flags
);
126 strbuf_release(&pat_buf
);
127 strbuf_release(&str_buf
);
132 static size_t common_prefix_len(const struct pathspec
*pathspec
)
138 * ":(icase)path" is treated as a pathspec full of
139 * wildcard. In other words, only prefix is considered common
140 * prefix. If the pathspec is abc/foo abc/bar, running in
141 * subdir xyz, the common prefix is still xyz, not xuz/abc as
144 GUARD_PATHSPEC(pathspec
,
153 for (n
= 0; n
< pathspec
->nr
; n
++) {
154 size_t i
= 0, len
= 0, item_len
;
155 if (pathspec
->items
[n
].magic
& PATHSPEC_EXCLUDE
)
157 if (pathspec
->items
[n
].magic
& PATHSPEC_ICASE
)
158 item_len
= pathspec
->items
[n
].prefix
;
160 item_len
= pathspec
->items
[n
].nowildcard_len
;
161 while (i
< item_len
&& (n
== 0 || i
< max
)) {
162 char c
= pathspec
->items
[n
].match
[i
];
163 if (c
!= pathspec
->items
[0].match
[i
])
169 if (n
== 0 || len
< max
) {
179 * Returns a copy of the longest leading path common among all
182 char *common_prefix(const struct pathspec
*pathspec
)
184 unsigned long len
= common_prefix_len(pathspec
);
186 return len
? xmemdupz(pathspec
->items
[0].match
, len
) : NULL
;
189 int fill_directory(struct dir_struct
*dir
,
190 struct index_state
*istate
,
191 const struct pathspec
*pathspec
)
197 * Calculate common prefix for the pathspec, and
198 * use that to optimize the directory walk
200 prefix_len
= common_prefix_len(pathspec
);
201 prefix
= prefix_len
? pathspec
->items
[0].match
: "";
203 /* Read the directory and prune it */
204 read_directory(dir
, istate
, prefix
, prefix_len
, pathspec
);
209 int within_depth(const char *name
, int namelen
,
210 int depth
, int max_depth
)
212 const char *cp
= name
, *cpe
= name
+ namelen
;
218 if (depth
> max_depth
)
225 * Read the contents of the blob with the given OID into a buffer.
226 * Append a trailing LF to the end if the last line doesn't have one.
229 * -1 when the OID is invalid or unknown or does not refer to a blob.
230 * 0 when the blob is empty.
231 * 1 along with { data, size } of the (possibly augmented) buffer
234 * Optionally updates the given sha1_stat with the given OID (when valid).
236 static int do_read_blob(const struct object_id
*oid
,
237 struct sha1_stat
*sha1_stat
,
241 enum object_type type
;
248 data
= read_sha1_file(oid
->hash
, &type
, &sz
);
249 if (!data
|| type
!= OBJ_BLOB
) {
255 memset(&sha1_stat
->stat
, 0, sizeof(sha1_stat
->stat
));
256 hashcpy(sha1_stat
->sha1
, oid
->hash
);
264 if (data
[sz
- 1] != '\n') {
265 data
= xrealloc(data
, st_add(sz
, 1));
269 *size_out
= xsize_t(sz
);
275 #define DO_MATCH_EXCLUDE (1<<0)
276 #define DO_MATCH_DIRECTORY (1<<1)
277 #define DO_MATCH_SUBMODULE (1<<2)
279 static int match_attrs(const char *name
, int namelen
,
280 const struct pathspec_item
*item
)
284 git_check_attr(name
, item
->attr_check
);
285 for (i
= 0; i
< item
->attr_match_nr
; i
++) {
288 enum attr_match_mode match_mode
;
290 value
= item
->attr_check
->items
[i
].value
;
291 match_mode
= item
->attr_match
[i
].match_mode
;
293 if (ATTR_TRUE(value
))
294 matched
= (match_mode
== MATCH_SET
);
295 else if (ATTR_FALSE(value
))
296 matched
= (match_mode
== MATCH_UNSET
);
297 else if (ATTR_UNSET(value
))
298 matched
= (match_mode
== MATCH_UNSPECIFIED
);
300 matched
= (match_mode
== MATCH_VALUE
&&
301 !strcmp(item
->attr_match
[i
].value
, value
));
310 * Does 'match' match the given name?
311 * A match is found if
313 * (1) the 'match' string is leading directory of 'name', or
314 * (2) the 'match' string is a wildcard and matches 'name', or
315 * (3) the 'match' string is exactly the same as 'name'.
317 * and the return value tells which case it was.
319 * It returns 0 when there is no match.
321 static int match_pathspec_item(const struct pathspec_item
*item
, int prefix
,
322 const char *name
, int namelen
, unsigned flags
)
324 /* name/namelen has prefix cut off by caller */
325 const char *match
= item
->match
+ prefix
;
326 int matchlen
= item
->len
- prefix
;
329 * The normal call pattern is:
330 * 1. prefix = common_prefix_len(ps);
331 * 2. prune something, or fill_directory
332 * 3. match_pathspec()
334 * 'prefix' at #1 may be shorter than the command's prefix and
335 * it's ok for #2 to match extra files. Those extras will be
338 * Suppose the pathspec is 'foo' and '../bar' running from
339 * subdir 'xyz'. The common prefix at #1 will be empty, thanks
340 * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The
341 * user does not want XYZ/foo, only the "foo" part should be
342 * case-insensitive. We need to filter out XYZ/foo here. In
343 * other words, we do not trust the caller on comparing the
344 * prefix part when :(icase) is involved. We do exact
345 * comparison ourselves.
347 * Normally the caller (common_prefix_len() in fact) does
348 * _exact_ matching on name[-prefix+1..-1] and we do not need
349 * to check that part. Be defensive and check it anyway, in
350 * case common_prefix_len is changed, or a new caller is
351 * introduced that does not use common_prefix_len.
353 * If the penalty turns out too high when prefix is really
354 * long, maybe change it to
355 * strncmp(match, name, item->prefix - prefix)
357 if (item
->prefix
&& (item
->magic
& PATHSPEC_ICASE
) &&
358 strncmp(item
->match
, name
- prefix
, item
->prefix
))
361 if (item
->attr_match_nr
&& !match_attrs(name
, namelen
, item
))
364 /* If the match was just the prefix, we matched */
366 return MATCHED_RECURSIVELY
;
368 if (matchlen
<= namelen
&& !ps_strncmp(item
, match
, name
, matchlen
)) {
369 if (matchlen
== namelen
)
370 return MATCHED_EXACTLY
;
372 if (match
[matchlen
-1] == '/' || name
[matchlen
] == '/')
373 return MATCHED_RECURSIVELY
;
374 } else if ((flags
& DO_MATCH_DIRECTORY
) &&
375 match
[matchlen
- 1] == '/' &&
376 namelen
== matchlen
- 1 &&
377 !ps_strncmp(item
, match
, name
, namelen
))
378 return MATCHED_EXACTLY
;
380 if (item
->nowildcard_len
< item
->len
&&
381 !git_fnmatch(item
, match
, name
,
382 item
->nowildcard_len
- prefix
))
383 return MATCHED_FNMATCH
;
385 /* Perform checks to see if "name" is a super set of the pathspec */
386 if (flags
& DO_MATCH_SUBMODULE
) {
387 /* name is a literal prefix of the pathspec */
388 if ((namelen
< matchlen
) &&
389 (match
[namelen
] == '/') &&
390 !ps_strncmp(item
, match
, name
, namelen
))
391 return MATCHED_RECURSIVELY
;
393 /* name" doesn't match up to the first wild character */
394 if (item
->nowildcard_len
< item
->len
&&
395 ps_strncmp(item
, match
, name
,
396 item
->nowildcard_len
- prefix
))
400 * Here is where we would perform a wildmatch to check if
401 * "name" can be matched as a directory (or a prefix) against
402 * the pathspec. Since wildmatch doesn't have this capability
403 * at the present we have to punt and say that it is a match,
404 * potentially returning a false positive
405 * The submodules themselves will be able to perform more
406 * accurate matching to determine if the pathspec matches.
408 return MATCHED_RECURSIVELY
;
415 * Given a name and a list of pathspecs, returns the nature of the
416 * closest (i.e. most specific) match of the name to any of the
419 * The caller typically calls this multiple times with the same
420 * pathspec and seen[] array but with different name/namelen
421 * (e.g. entries from the index) and is interested in seeing if and
422 * how each pathspec matches all the names it calls this function
423 * with. A mark is left in the seen[] array for each pathspec element
424 * indicating the closest type of match that element achieved, so if
425 * seen[n] remains zero after multiple invocations, that means the nth
426 * pathspec did not match any names, which could indicate that the
427 * user mistyped the nth pathspec.
429 static int do_match_pathspec(const struct pathspec
*ps
,
430 const char *name
, int namelen
,
431 int prefix
, char *seen
,
434 int i
, retval
= 0, exclude
= flags
& DO_MATCH_EXCLUDE
;
446 if (!ps
->recursive
||
447 !(ps
->magic
& PATHSPEC_MAXDEPTH
) ||
449 return MATCHED_RECURSIVELY
;
451 if (within_depth(name
, namelen
, 0, ps
->max_depth
))
452 return MATCHED_EXACTLY
;
460 for (i
= ps
->nr
- 1; i
>= 0; i
--) {
463 if ((!exclude
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
) ||
464 ( exclude
&& !(ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)))
467 if (seen
&& seen
[i
] == MATCHED_EXACTLY
)
470 * Make exclude patterns optional and never report
471 * "pathspec ':(exclude)foo' matches no files"
473 if (seen
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)
474 seen
[i
] = MATCHED_FNMATCH
;
475 how
= match_pathspec_item(ps
->items
+i
, prefix
, name
,
478 (ps
->magic
& PATHSPEC_MAXDEPTH
) &&
479 ps
->max_depth
!= -1 &&
480 how
&& how
!= MATCHED_FNMATCH
) {
481 int len
= ps
->items
[i
].len
;
482 if (name
[len
] == '/')
484 if (within_depth(name
+len
, namelen
-len
, 0, ps
->max_depth
))
485 how
= MATCHED_EXACTLY
;
492 if (seen
&& seen
[i
] < how
)
499 int match_pathspec(const struct pathspec
*ps
,
500 const char *name
, int namelen
,
501 int prefix
, char *seen
, int is_dir
)
503 int positive
, negative
;
504 unsigned flags
= is_dir
? DO_MATCH_DIRECTORY
: 0;
505 positive
= do_match_pathspec(ps
, name
, namelen
,
506 prefix
, seen
, flags
);
507 if (!(ps
->magic
& PATHSPEC_EXCLUDE
) || !positive
)
509 negative
= do_match_pathspec(ps
, name
, namelen
,
511 flags
| DO_MATCH_EXCLUDE
);
512 return negative
? 0 : positive
;
516 * Check if a submodule is a superset of the pathspec
518 int submodule_path_match(const struct pathspec
*ps
,
519 const char *submodule_name
,
522 int matched
= do_match_pathspec(ps
, submodule_name
,
523 strlen(submodule_name
),
530 int report_path_error(const char *ps_matched
,
531 const struct pathspec
*pathspec
,
535 * Make sure all pathspec matched; otherwise it is an error.
538 for (num
= 0; num
< pathspec
->nr
; num
++) {
539 int other
, found_dup
;
544 * The caller might have fed identical pathspec
545 * twice. Do not barf on such a mistake.
546 * FIXME: parse_pathspec should have eliminated
547 * duplicate pathspec.
549 for (found_dup
= other
= 0;
550 !found_dup
&& other
< pathspec
->nr
;
552 if (other
== num
|| !ps_matched
[other
])
554 if (!strcmp(pathspec
->items
[other
].original
,
555 pathspec
->items
[num
].original
))
557 * Ok, we have a match already.
564 error("pathspec '%s' did not match any file(s) known to git.",
565 pathspec
->items
[num
].original
);
572 * Return the length of the "simple" part of a path match limiter.
574 int simple_length(const char *match
)
579 unsigned char c
= *match
++;
581 if (c
== '\0' || is_glob_special(c
))
586 int no_wildcard(const char *string
)
588 return string
[simple_length(string
)] == '\0';
591 void parse_exclude_pattern(const char **pattern
,
596 const char *p
= *pattern
;
601 *flags
|= EXC_FLAG_NEGATIVE
;
605 if (len
&& p
[len
- 1] == '/') {
607 *flags
|= EXC_FLAG_MUSTBEDIR
;
609 for (i
= 0; i
< len
; i
++) {
614 *flags
|= EXC_FLAG_NODIR
;
615 *nowildcardlen
= simple_length(p
);
617 * we should have excluded the trailing slash from 'p' too,
618 * but that's one more allocation. Instead just make sure
619 * nowildcardlen does not exceed real patternlen
621 if (*nowildcardlen
> len
)
622 *nowildcardlen
= len
;
623 if (*p
== '*' && no_wildcard(p
+ 1))
624 *flags
|= EXC_FLAG_ENDSWITH
;
629 void add_exclude(const char *string
, const char *base
,
630 int baselen
, struct exclude_list
*el
, int srcpos
)
637 parse_exclude_pattern(&string
, &patternlen
, &flags
, &nowildcardlen
);
638 if (flags
& EXC_FLAG_MUSTBEDIR
) {
639 FLEXPTR_ALLOC_MEM(x
, pattern
, string
, patternlen
);
641 x
= xmalloc(sizeof(*x
));
644 x
->patternlen
= patternlen
;
645 x
->nowildcardlen
= nowildcardlen
;
647 x
->baselen
= baselen
;
650 ALLOC_GROW(el
->excludes
, el
->nr
+ 1, el
->alloc
);
651 el
->excludes
[el
->nr
++] = x
;
655 static int read_skip_worktree_file_from_index(const struct index_state
*istate
,
659 struct sha1_stat
*sha1_stat
)
664 pos
= index_name_pos(istate
, path
, len
);
667 if (!ce_skip_worktree(istate
->cache
[pos
]))
670 return do_read_blob(&istate
->cache
[pos
]->oid
, sha1_stat
, size_out
, data_out
);
674 * Frees memory within el which was allocated for exclude patterns and
675 * the file buffer. Does not free el itself.
677 void clear_exclude_list(struct exclude_list
*el
)
681 for (i
= 0; i
< el
->nr
; i
++)
682 free(el
->excludes
[i
]);
686 memset(el
, 0, sizeof(*el
));
689 static void trim_trailing_spaces(char *buf
)
691 char *p
, *last_space
= NULL
;
693 for (p
= buf
; *p
; p
++)
713 * Given a subdirectory name and "dir" of the current directory,
714 * search the subdir in "dir" and return it, or create a new one if it
715 * does not exist in "dir".
717 * If "name" has the trailing slash, it'll be excluded in the search.
719 static struct untracked_cache_dir
*lookup_untracked(struct untracked_cache
*uc
,
720 struct untracked_cache_dir
*dir
,
721 const char *name
, int len
)
724 struct untracked_cache_dir
*d
;
727 if (len
&& name
[len
- 1] == '/')
731 while (last
> first
) {
732 int cmp
, next
= (last
+ first
) >> 1;
734 cmp
= strncmp(name
, d
->name
, len
);
735 if (!cmp
&& strlen(d
->name
) > len
)
747 FLEX_ALLOC_MEM(d
, name
, name
, len
);
749 ALLOC_GROW(dir
->dirs
, dir
->dirs_nr
+ 1, dir
->dirs_alloc
);
750 memmove(dir
->dirs
+ first
+ 1, dir
->dirs
+ first
,
751 (dir
->dirs_nr
- first
) * sizeof(*dir
->dirs
));
753 dir
->dirs
[first
] = d
;
757 static void do_invalidate_gitignore(struct untracked_cache_dir
*dir
)
761 dir
->untracked_nr
= 0;
762 for (i
= 0; i
< dir
->dirs_nr
; i
++)
763 do_invalidate_gitignore(dir
->dirs
[i
]);
766 static void invalidate_gitignore(struct untracked_cache
*uc
,
767 struct untracked_cache_dir
*dir
)
769 uc
->gitignore_invalidated
++;
770 do_invalidate_gitignore(dir
);
773 static void invalidate_directory(struct untracked_cache
*uc
,
774 struct untracked_cache_dir
*dir
)
777 uc
->dir_invalidated
++;
779 dir
->untracked_nr
= 0;
780 for (i
= 0; i
< dir
->dirs_nr
; i
++)
781 dir
->dirs
[i
]->recurse
= 0;
784 static int add_excludes_from_buffer(char *buf
, size_t size
,
785 const char *base
, int baselen
,
786 struct exclude_list
*el
);
789 * Given a file with name "fname", read it (either from disk, or from
790 * an index if 'istate' is non-null), parse it and store the
791 * exclude rules in "el".
793 * If "ss" is not NULL, compute SHA-1 of the exclude file and fill
794 * stat data from disk (only valid if add_excludes returns zero). If
795 * ss_valid is non-zero, "ss" must contain good value as input.
797 static int add_excludes(const char *fname
, const char *base
, int baselen
,
798 struct exclude_list
*el
,
799 struct index_state
*istate
,
800 struct sha1_stat
*sha1_stat
)
808 fd
= open(fname
, O_RDONLY
);
809 if (fd
< 0 || fstat(fd
, &st
) < 0) {
811 warn_on_fopen_errors(fname
);
816 r
= read_skip_worktree_file_from_index(istate
, fname
,
822 size
= xsize_t(st
.st_size
);
825 fill_stat_data(&sha1_stat
->stat
, &st
);
826 hashcpy(sha1_stat
->sha1
, EMPTY_BLOB_SHA1_BIN
);
827 sha1_stat
->valid
= 1;
832 buf
= xmallocz(size
);
833 if (read_in_full(fd
, buf
, size
) != size
) {
842 if (sha1_stat
->valid
&&
843 !match_stat_data_racy(istate
, &sha1_stat
->stat
, &st
))
844 ; /* no content change, ss->sha1 still good */
846 (pos
= index_name_pos(istate
, fname
, strlen(fname
))) >= 0 &&
847 !ce_stage(istate
->cache
[pos
]) &&
848 ce_uptodate(istate
->cache
[pos
]) &&
849 !would_convert_to_git(istate
, fname
))
850 hashcpy(sha1_stat
->sha1
,
851 istate
->cache
[pos
]->oid
.hash
);
853 hash_sha1_file(buf
, size
, "blob", sha1_stat
->sha1
);
854 fill_stat_data(&sha1_stat
->stat
, &st
);
855 sha1_stat
->valid
= 1;
859 add_excludes_from_buffer(buf
, size
, base
, baselen
, el
);
863 static int add_excludes_from_buffer(char *buf
, size_t size
,
864 const char *base
, int baselen
,
865 struct exclude_list
*el
)
872 if (skip_utf8_bom(&buf
, size
))
873 size
-= buf
- el
->filebuf
;
877 for (i
= 0; i
< size
; i
++) {
878 if (buf
[i
] == '\n') {
879 if (entry
!= buf
+ i
&& entry
[0] != '#') {
880 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
881 trim_trailing_spaces(entry
);
882 add_exclude(entry
, base
, baselen
, el
, lineno
);
891 int add_excludes_from_file_to_list(const char *fname
, const char *base
,
892 int baselen
, struct exclude_list
*el
,
893 struct index_state
*istate
)
895 return add_excludes(fname
, base
, baselen
, el
, istate
, NULL
);
898 int add_excludes_from_blob_to_list(
899 struct object_id
*oid
,
900 const char *base
, int baselen
,
901 struct exclude_list
*el
)
907 r
= do_read_blob(oid
, NULL
, &size
, &buf
);
911 add_excludes_from_buffer(buf
, size
, base
, baselen
, el
);
915 struct exclude_list
*add_exclude_list(struct dir_struct
*dir
,
916 int group_type
, const char *src
)
918 struct exclude_list
*el
;
919 struct exclude_list_group
*group
;
921 group
= &dir
->exclude_list_group
[group_type
];
922 ALLOC_GROW(group
->el
, group
->nr
+ 1, group
->alloc
);
923 el
= &group
->el
[group
->nr
++];
924 memset(el
, 0, sizeof(*el
));
930 * Used to set up core.excludesfile and .git/info/exclude lists.
932 static void add_excludes_from_file_1(struct dir_struct
*dir
, const char *fname
,
933 struct sha1_stat
*sha1_stat
)
935 struct exclude_list
*el
;
937 * catch setup_standard_excludes() that's called before
938 * dir->untracked is assigned. That function behaves
939 * differently when dir->untracked is non-NULL.
942 dir
->unmanaged_exclude_files
++;
943 el
= add_exclude_list(dir
, EXC_FILE
, fname
);
944 if (add_excludes(fname
, "", 0, el
, NULL
, sha1_stat
) < 0)
945 die("cannot use %s as an exclude file", fname
);
948 void add_excludes_from_file(struct dir_struct
*dir
, const char *fname
)
950 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
951 add_excludes_from_file_1(dir
, fname
, NULL
);
954 int match_basename(const char *basename
, int basenamelen
,
955 const char *pattern
, int prefix
, int patternlen
,
958 if (prefix
== patternlen
) {
959 if (patternlen
== basenamelen
&&
960 !fspathncmp(pattern
, basename
, basenamelen
))
962 } else if (flags
& EXC_FLAG_ENDSWITH
) {
963 /* "*literal" matching against "fooliteral" */
964 if (patternlen
- 1 <= basenamelen
&&
965 !fspathncmp(pattern
+ 1,
966 basename
+ basenamelen
- (patternlen
- 1),
970 if (fnmatch_icase_mem(pattern
, patternlen
,
971 basename
, basenamelen
,
978 int match_pathname(const char *pathname
, int pathlen
,
979 const char *base
, int baselen
,
980 const char *pattern
, int prefix
, int patternlen
,
987 * match with FNM_PATHNAME; the pattern has base implicitly
990 if (*pattern
== '/') {
997 * baselen does not count the trailing slash. base[] may or
998 * may not end with a trailing slash though.
1000 if (pathlen
< baselen
+ 1 ||
1001 (baselen
&& pathname
[baselen
] != '/') ||
1002 fspathncmp(pathname
, base
, baselen
))
1005 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
1006 name
= pathname
+ pathlen
- namelen
;
1010 * if the non-wildcard part is longer than the
1011 * remaining pathname, surely it cannot match.
1013 if (prefix
> namelen
)
1016 if (fspathncmp(pattern
, name
, prefix
))
1019 patternlen
-= prefix
;
1024 * If the whole pattern did not have a wildcard,
1025 * then our prefix match is all we need; we
1026 * do not need to call fnmatch at all.
1028 if (!patternlen
&& !namelen
)
1032 return fnmatch_icase_mem(pattern
, patternlen
,
1038 * Scan the given exclude list in reverse to see whether pathname
1039 * should be ignored. The first match (i.e. the last on the list), if
1040 * any, determines the fate. Returns the exclude_list element which
1041 * matched, or NULL for undecided.
1043 static struct exclude
*last_exclude_matching_from_list(const char *pathname
,
1045 const char *basename
,
1047 struct exclude_list
*el
,
1048 struct index_state
*istate
)
1050 struct exclude
*exc
= NULL
; /* undecided */
1054 return NULL
; /* undefined */
1056 for (i
= el
->nr
- 1; 0 <= i
; i
--) {
1057 struct exclude
*x
= el
->excludes
[i
];
1058 const char *exclude
= x
->pattern
;
1059 int prefix
= x
->nowildcardlen
;
1061 if (x
->flags
& EXC_FLAG_MUSTBEDIR
) {
1062 if (*dtype
== DT_UNKNOWN
)
1063 *dtype
= get_dtype(NULL
, istate
, pathname
, pathlen
);
1064 if (*dtype
!= DT_DIR
)
1068 if (x
->flags
& EXC_FLAG_NODIR
) {
1069 if (match_basename(basename
,
1070 pathlen
- (basename
- pathname
),
1071 exclude
, prefix
, x
->patternlen
,
1079 assert(x
->baselen
== 0 || x
->base
[x
->baselen
- 1] == '/');
1080 if (match_pathname(pathname
, pathlen
,
1081 x
->base
, x
->baselen
? x
->baselen
- 1 : 0,
1082 exclude
, prefix
, x
->patternlen
, x
->flags
)) {
1091 * Scan the list and let the last match determine the fate.
1092 * Return 1 for exclude, 0 for include and -1 for undecided.
1094 int is_excluded_from_list(const char *pathname
,
1095 int pathlen
, const char *basename
, int *dtype
,
1096 struct exclude_list
*el
, struct index_state
*istate
)
1098 struct exclude
*exclude
;
1099 exclude
= last_exclude_matching_from_list(pathname
, pathlen
, basename
,
1102 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1103 return -1; /* undecided */
1106 static struct exclude
*last_exclude_matching_from_lists(struct dir_struct
*dir
,
1107 struct index_state
*istate
,
1108 const char *pathname
, int pathlen
, const char *basename
,
1112 struct exclude_list_group
*group
;
1113 struct exclude
*exclude
;
1114 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
1115 group
= &dir
->exclude_list_group
[i
];
1116 for (j
= group
->nr
- 1; j
>= 0; j
--) {
1117 exclude
= last_exclude_matching_from_list(
1118 pathname
, pathlen
, basename
, dtype_p
,
1119 &group
->el
[j
], istate
);
1128 * Loads the per-directory exclude list for the substring of base
1129 * which has a char length of baselen.
1131 static void prep_exclude(struct dir_struct
*dir
,
1132 struct index_state
*istate
,
1133 const char *base
, int baselen
)
1135 struct exclude_list_group
*group
;
1136 struct exclude_list
*el
;
1137 struct exclude_stack
*stk
= NULL
;
1138 struct untracked_cache_dir
*untracked
;
1141 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1144 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1145 * which originate from directories not in the prefix of the
1146 * path being checked.
1148 while ((stk
= dir
->exclude_stack
) != NULL
) {
1149 if (stk
->baselen
<= baselen
&&
1150 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1152 el
= &group
->el
[dir
->exclude_stack
->exclude_ix
];
1153 dir
->exclude_stack
= stk
->prev
;
1154 dir
->exclude
= NULL
;
1155 free((char *)el
->src
); /* see strbuf_detach() below */
1156 clear_exclude_list(el
);
1161 /* Skip traversing into sub directories if the parent is excluded */
1166 * Lazy initialization. All call sites currently just
1167 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1168 * them seems lots of work for little benefit.
1170 if (!dir
->basebuf
.buf
)
1171 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1173 /* Read from the parent directories and push them down. */
1174 current
= stk
? stk
->baselen
: -1;
1175 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1177 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1181 while (current
< baselen
) {
1183 struct sha1_stat sha1_stat
;
1185 stk
= xcalloc(1, sizeof(*stk
));
1190 cp
= strchr(base
+ current
+ 1, '/');
1192 die("oops in prep_exclude");
1195 lookup_untracked(dir
->untracked
, untracked
,
1197 cp
- base
- current
);
1199 stk
->prev
= dir
->exclude_stack
;
1200 stk
->baselen
= cp
- base
;
1201 stk
->exclude_ix
= group
->nr
;
1202 stk
->ucd
= untracked
;
1203 el
= add_exclude_list(dir
, EXC_DIRS
, NULL
);
1204 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1205 assert(stk
->baselen
== dir
->basebuf
.len
);
1207 /* Abort if the directory is excluded */
1210 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1211 dir
->exclude
= last_exclude_matching_from_lists(dir
,
1213 dir
->basebuf
.buf
, stk
->baselen
- 1,
1214 dir
->basebuf
.buf
+ current
, &dt
);
1215 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1217 dir
->exclude
->flags
& EXC_FLAG_NEGATIVE
)
1218 dir
->exclude
= NULL
;
1220 dir
->exclude_stack
= stk
;
1225 /* Try to read per-directory file */
1226 hashclr(sha1_stat
.sha1
);
1227 sha1_stat
.valid
= 0;
1228 if (dir
->exclude_per_dir
&&
1230 * If we know that no files have been added in
1231 * this directory (i.e. valid_cached_dir() has
1232 * been executed and set untracked->valid) ..
1234 (!untracked
|| !untracked
->valid
||
1236 * .. and .gitignore does not exist before
1237 * (i.e. null exclude_sha1). Then we can skip
1238 * loading .gitignore, which would result in
1241 !is_null_sha1(untracked
->exclude_sha1
))) {
1243 * dir->basebuf gets reused by the traversal, but we
1244 * need fname to remain unchanged to ensure the src
1245 * member of each struct exclude correctly
1246 * back-references its source file. Other invocations
1247 * of add_exclude_list provide stable strings, so we
1248 * strbuf_detach() and free() here in the caller.
1250 struct strbuf sb
= STRBUF_INIT
;
1251 strbuf_addbuf(&sb
, &dir
->basebuf
);
1252 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1253 el
->src
= strbuf_detach(&sb
, NULL
);
1254 add_excludes(el
->src
, el
->src
, stk
->baselen
, el
, istate
,
1255 untracked
? &sha1_stat
: NULL
);
1258 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1259 * will first be called in valid_cached_dir() then maybe many
1260 * times more in last_exclude_matching(). When the cache is
1261 * used, last_exclude_matching() will not be called and
1262 * reading .gitignore content will be a waste.
1264 * So when it's called by valid_cached_dir() and we can get
1265 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1266 * modified on work tree), we could delay reading the
1267 * .gitignore content until we absolutely need it in
1268 * last_exclude_matching(). Be careful about ignore rule
1269 * order, though, if you do that.
1272 hashcmp(sha1_stat
.sha1
, untracked
->exclude_sha1
)) {
1273 invalidate_gitignore(dir
->untracked
, untracked
);
1274 hashcpy(untracked
->exclude_sha1
, sha1_stat
.sha1
);
1276 dir
->exclude_stack
= stk
;
1277 current
= stk
->baselen
;
1279 strbuf_setlen(&dir
->basebuf
, baselen
);
1283 * Loads the exclude lists for the directory containing pathname, then
1284 * scans all exclude lists to determine whether pathname is excluded.
1285 * Returns the exclude_list element which matched, or NULL for
1288 struct exclude
*last_exclude_matching(struct dir_struct
*dir
,
1289 struct index_state
*istate
,
1290 const char *pathname
,
1293 int pathlen
= strlen(pathname
);
1294 const char *basename
= strrchr(pathname
, '/');
1295 basename
= (basename
) ? basename
+1 : pathname
;
1297 prep_exclude(dir
, istate
, pathname
, basename
-pathname
);
1300 return dir
->exclude
;
1302 return last_exclude_matching_from_lists(dir
, istate
, pathname
, pathlen
,
1307 * Loads the exclude lists for the directory containing pathname, then
1308 * scans all exclude lists to determine whether pathname is excluded.
1309 * Returns 1 if true, otherwise 0.
1311 int is_excluded(struct dir_struct
*dir
, struct index_state
*istate
,
1312 const char *pathname
, int *dtype_p
)
1314 struct exclude
*exclude
=
1315 last_exclude_matching(dir
, istate
, pathname
, dtype_p
);
1317 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1321 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1323 struct dir_entry
*ent
;
1325 FLEX_ALLOC_MEM(ent
, name
, pathname
, len
);
1330 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
,
1331 struct index_state
*istate
,
1332 const char *pathname
, int len
)
1334 if (index_file_exists(istate
, pathname
, len
, ignore_case
))
1337 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1338 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1341 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
,
1342 struct index_state
*istate
,
1343 const char *pathname
, int len
)
1345 if (!index_name_is_other(istate
, pathname
, len
))
1348 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1349 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1353 index_nonexistent
= 0,
1359 * Do not use the alphabetically sorted index to look up
1360 * the directory name; instead, use the case insensitive
1363 static enum exist_status
directory_exists_in_index_icase(struct index_state
*istate
,
1364 const char *dirname
, int len
)
1366 struct cache_entry
*ce
;
1368 if (index_dir_exists(istate
, dirname
, len
))
1369 return index_directory
;
1371 ce
= index_file_exists(istate
, dirname
, len
, ignore_case
);
1372 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1373 return index_gitdir
;
1375 return index_nonexistent
;
1379 * The index sorts alphabetically by entry name, which
1380 * means that a gitlink sorts as '\0' at the end, while
1381 * a directory (which is defined not as an entry, but as
1382 * the files it contains) will sort with the '/' at the
1385 static enum exist_status
directory_exists_in_index(struct index_state
*istate
,
1386 const char *dirname
, int len
)
1391 return directory_exists_in_index_icase(istate
, dirname
, len
);
1393 pos
= index_name_pos(istate
, dirname
, len
);
1396 while (pos
< istate
->cache_nr
) {
1397 const struct cache_entry
*ce
= istate
->cache
[pos
++];
1398 unsigned char endchar
;
1400 if (strncmp(ce
->name
, dirname
, len
))
1402 endchar
= ce
->name
[len
];
1406 return index_directory
;
1407 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1408 return index_gitdir
;
1410 return index_nonexistent
;
1414 * When we find a directory when traversing the filesystem, we
1415 * have three distinct cases:
1418 * - see it as a directory
1421 * and which one we choose depends on a combination of existing
1422 * git index contents and the flags passed into the directory
1423 * traversal routine.
1425 * Case 1: If we *already* have entries in the index under that
1426 * directory name, we always recurse into the directory to see
1429 * Case 2: If we *already* have that directory name as a gitlink,
1430 * we always continue to see it as a gitlink, regardless of whether
1431 * there is an actual git directory there or not (it might not
1432 * be checked out as a subproject!)
1434 * Case 3: if we didn't have it in the index previously, we
1435 * have a few sub-cases:
1437 * (a) if "show_other_directories" is true, we show it as
1438 * just a directory, unless "hide_empty_directories" is
1439 * also true, in which case we need to check if it contains any
1440 * untracked and / or ignored files.
1441 * (b) if it looks like a git directory, and we don't have
1442 * 'no_gitlinks' set we treat it as a gitlink, and show it
1444 * (c) otherwise, we recurse into it.
1446 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1447 struct index_state
*istate
,
1448 struct untracked_cache_dir
*untracked
,
1449 const char *dirname
, int len
, int baselen
, int exclude
,
1450 const struct pathspec
*pathspec
)
1452 /* The "len-1" is to strip the final '/' */
1453 switch (directory_exists_in_index(istate
, dirname
, len
-1)) {
1454 case index_directory
:
1455 return path_recurse
;
1460 case index_nonexistent
:
1461 if (dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)
1464 (dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1465 (dir
->flags
& DIR_SHOW_IGNORED_TOO_MODE_MATCHING
)) {
1468 * This is an excluded directory and we are
1469 * showing ignored paths that match an exclude
1470 * pattern. (e.g. show directory as ignored
1471 * only if it matches an exclude pattern).
1472 * This path will either be 'path_excluded`
1473 * (if we are showing empty directories or if
1474 * the directory is not empty), or will be
1475 * 'path_none' (empty directory, and we are
1476 * not showing empty directories).
1478 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1479 return path_excluded
;
1481 if (read_directory_recursive(dir
, istate
, dirname
, len
,
1482 untracked
, 1, 1, pathspec
) == path_excluded
)
1483 return path_excluded
;
1487 if (!(dir
->flags
& DIR_NO_GITLINKS
)) {
1488 struct object_id oid
;
1489 if (resolve_gitlink_ref(dirname
, "HEAD", &oid
) == 0)
1490 return exclude
? path_excluded
: path_untracked
;
1492 return path_recurse
;
1495 /* This is the "show_other_directories" case */
1497 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1498 return exclude
? path_excluded
: path_untracked
;
1500 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1501 dirname
+ baselen
, len
- baselen
);
1504 * If this is an excluded directory, then we only need to check if
1505 * the directory contains any files.
1507 return read_directory_recursive(dir
, istate
, dirname
, len
,
1508 untracked
, 1, exclude
, pathspec
);
1512 * This is an inexact early pruning of any recursive directory
1513 * reading - if the path cannot possibly be in the pathspec,
1514 * return true, and we'll skip it early.
1516 static int simplify_away(const char *path
, int pathlen
,
1517 const struct pathspec
*pathspec
)
1521 if (!pathspec
|| !pathspec
->nr
)
1524 GUARD_PATHSPEC(pathspec
,
1533 for (i
= 0; i
< pathspec
->nr
; i
++) {
1534 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1535 int len
= item
->nowildcard_len
;
1539 if (!ps_strncmp(item
, item
->match
, path
, len
))
1547 * This function tells us whether an excluded path matches a
1548 * list of "interesting" pathspecs. That is, whether a path matched
1549 * by any of the pathspecs could possibly be ignored by excluding
1550 * the specified path. This can happen if:
1552 * 1. the path is mentioned explicitly in the pathspec
1554 * 2. the path is a directory prefix of some element in the
1557 static int exclude_matches_pathspec(const char *path
, int pathlen
,
1558 const struct pathspec
*pathspec
)
1562 if (!pathspec
|| !pathspec
->nr
)
1565 GUARD_PATHSPEC(pathspec
,
1573 for (i
= 0; i
< pathspec
->nr
; i
++) {
1574 const struct pathspec_item
*item
= &pathspec
->items
[i
];
1575 int len
= item
->nowildcard_len
;
1577 if (len
== pathlen
&&
1578 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1580 if (len
> pathlen
&&
1581 item
->match
[pathlen
] == '/' &&
1582 !ps_strncmp(item
, item
->match
, path
, pathlen
))
1588 static int get_index_dtype(struct index_state
*istate
,
1589 const char *path
, int len
)
1592 const struct cache_entry
*ce
;
1594 ce
= index_file_exists(istate
, path
, len
, 0);
1596 if (!ce_uptodate(ce
))
1598 if (S_ISGITLINK(ce
->ce_mode
))
1601 * Nobody actually cares about the
1602 * difference between DT_LNK and DT_REG
1607 /* Try to look it up as a directory */
1608 pos
= index_name_pos(istate
, path
, len
);
1612 while (pos
< istate
->cache_nr
) {
1613 ce
= istate
->cache
[pos
++];
1614 if (strncmp(ce
->name
, path
, len
))
1616 if (ce
->name
[len
] > '/')
1618 if (ce
->name
[len
] < '/')
1620 if (!ce_uptodate(ce
))
1621 break; /* continue? */
1627 static int get_dtype(struct dirent
*de
, struct index_state
*istate
,
1628 const char *path
, int len
)
1630 int dtype
= de
? DTYPE(de
) : DT_UNKNOWN
;
1633 if (dtype
!= DT_UNKNOWN
)
1635 dtype
= get_index_dtype(istate
, path
, len
);
1636 if (dtype
!= DT_UNKNOWN
)
1638 if (lstat(path
, &st
))
1640 if (S_ISREG(st
.st_mode
))
1642 if (S_ISDIR(st
.st_mode
))
1644 if (S_ISLNK(st
.st_mode
))
1649 static enum path_treatment
treat_one_path(struct dir_struct
*dir
,
1650 struct untracked_cache_dir
*untracked
,
1651 struct index_state
*istate
,
1652 struct strbuf
*path
,
1654 const struct pathspec
*pathspec
,
1655 int dtype
, struct dirent
*de
)
1658 int has_path_in_index
= !!index_file_exists(istate
, path
->buf
, path
->len
, ignore_case
);
1659 enum path_treatment path_treatment
;
1661 if (dtype
== DT_UNKNOWN
)
1662 dtype
= get_dtype(de
, istate
, path
->buf
, path
->len
);
1664 /* Always exclude indexed files */
1665 if (dtype
!= DT_DIR
&& has_path_in_index
)
1669 * When we are looking at a directory P in the working tree,
1670 * there are three cases:
1672 * (1) P exists in the index. Everything inside the directory P in
1673 * the working tree needs to go when P is checked out from the
1676 * (2) P does not exist in the index, but there is P/Q in the index.
1677 * We know P will stay a directory when we check out the contents
1678 * of the index, but we do not know yet if there is a directory
1679 * P/Q in the working tree to be killed, so we need to recurse.
1681 * (3) P does not exist in the index, and there is no P/Q in the index
1682 * to require P to be a directory, either. Only in this case, we
1683 * know that everything inside P will not be killed without
1686 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
1687 (dtype
== DT_DIR
) &&
1688 !has_path_in_index
&&
1689 (directory_exists_in_index(istate
, path
->buf
, path
->len
) == index_nonexistent
))
1692 exclude
= is_excluded(dir
, istate
, path
->buf
, &dtype
);
1695 * Excluded? If we don't explicitly want to show
1696 * ignored files, ignore it
1698 if (exclude
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
1699 return path_excluded
;
1705 strbuf_addch(path
, '/');
1706 path_treatment
= treat_directory(dir
, istate
, untracked
,
1707 path
->buf
, path
->len
,
1708 baselen
, exclude
, pathspec
);
1710 * If 1) we only want to return directories that
1711 * match an exclude pattern and 2) this directory does
1712 * not match an exclude pattern but all of its
1713 * contents are excluded, then indicate that we should
1714 * recurse into this directory (instead of marking the
1715 * directory itself as an ignored path).
1718 path_treatment
== path_excluded
&&
1719 (dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1720 (dir
->flags
& DIR_SHOW_IGNORED_TOO_MODE_MATCHING
))
1721 return path_recurse
;
1722 return path_treatment
;
1725 return exclude
? path_excluded
: path_untracked
;
1729 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
1730 struct untracked_cache_dir
*untracked
,
1731 struct cached_dir
*cdir
,
1732 struct index_state
*istate
,
1733 struct strbuf
*path
,
1735 const struct pathspec
*pathspec
)
1737 strbuf_setlen(path
, baselen
);
1739 strbuf_addstr(path
, cdir
->file
);
1740 return path_untracked
;
1742 strbuf_addstr(path
, cdir
->ucd
->name
);
1743 /* treat_one_path() does this before it calls treat_directory() */
1744 strbuf_complete(path
, '/');
1745 if (cdir
->ucd
->check_only
)
1747 * check_only is set as a result of treat_directory() getting
1748 * to its bottom. Verify again the same set of directories
1749 * with check_only set.
1751 return read_directory_recursive(dir
, istate
, path
->buf
, path
->len
,
1752 cdir
->ucd
, 1, 0, pathspec
);
1754 * We get path_recurse in the first run when
1755 * directory_exists_in_index() returns index_nonexistent. We
1756 * are sure that new changes in the index does not impact the
1757 * outcome. Return now.
1759 return path_recurse
;
1762 static enum path_treatment
treat_path(struct dir_struct
*dir
,
1763 struct untracked_cache_dir
*untracked
,
1764 struct cached_dir
*cdir
,
1765 struct index_state
*istate
,
1766 struct strbuf
*path
,
1768 const struct pathspec
*pathspec
)
1771 struct dirent
*de
= cdir
->de
;
1774 return treat_path_fast(dir
, untracked
, cdir
, istate
, path
,
1776 if (is_dot_or_dotdot(de
->d_name
) || !strcmp(de
->d_name
, ".git"))
1778 strbuf_setlen(path
, baselen
);
1779 strbuf_addstr(path
, de
->d_name
);
1780 if (simplify_away(path
->buf
, path
->len
, pathspec
))
1784 return treat_one_path(dir
, untracked
, istate
, path
, baselen
, pathspec
, dtype
, de
);
1787 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
1791 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
1792 dir
->untracked_alloc
);
1793 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
1796 static int valid_cached_dir(struct dir_struct
*dir
,
1797 struct untracked_cache_dir
*untracked
,
1798 struct index_state
*istate
,
1799 struct strbuf
*path
,
1808 * With fsmonitor, we can trust the untracked cache's valid field.
1810 refresh_fsmonitor(istate
);
1811 if (!(dir
->untracked
->use_fsmonitor
&& untracked
->valid
)) {
1812 if (stat(path
->len
? path
->buf
: ".", &st
)) {
1813 invalidate_directory(dir
->untracked
, untracked
);
1814 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
1817 if (!untracked
->valid
||
1818 match_stat_data_racy(istate
, &untracked
->stat_data
, &st
)) {
1819 if (untracked
->valid
)
1820 invalidate_directory(dir
->untracked
, untracked
);
1821 fill_stat_data(&untracked
->stat_data
, &st
);
1826 if (untracked
->check_only
!= !!check_only
) {
1827 invalidate_directory(dir
->untracked
, untracked
);
1832 * prep_exclude will be called eventually on this directory,
1833 * but it's called much later in last_exclude_matching(). We
1834 * need it now to determine the validity of the cache for this
1835 * path. The next calls will be nearly no-op, the way
1836 * prep_exclude() is designed.
1838 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
1839 strbuf_addch(path
, '/');
1840 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
1841 strbuf_setlen(path
, path
->len
- 1);
1843 prep_exclude(dir
, istate
, path
->buf
, path
->len
);
1845 /* hopefully prep_exclude() haven't invalidated this entry... */
1846 return untracked
->valid
;
1849 static int open_cached_dir(struct cached_dir
*cdir
,
1850 struct dir_struct
*dir
,
1851 struct untracked_cache_dir
*untracked
,
1852 struct index_state
*istate
,
1853 struct strbuf
*path
,
1856 memset(cdir
, 0, sizeof(*cdir
));
1857 cdir
->untracked
= untracked
;
1858 if (valid_cached_dir(dir
, untracked
, istate
, path
, check_only
))
1860 cdir
->fdir
= opendir(path
->len
? path
->buf
: ".");
1862 dir
->untracked
->dir_opened
++;
1868 static int read_cached_dir(struct cached_dir
*cdir
)
1871 cdir
->de
= readdir(cdir
->fdir
);
1876 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
1877 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
1887 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
1888 struct untracked_cache_dir
*d
= cdir
->untracked
;
1889 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
1895 static void close_cached_dir(struct cached_dir
*cdir
)
1898 closedir(cdir
->fdir
);
1900 * We have gone through this directory and found no untracked
1901 * entries. Mark it valid.
1903 if (cdir
->untracked
) {
1904 cdir
->untracked
->valid
= 1;
1905 cdir
->untracked
->recurse
= 1;
1910 * Read a directory tree. We currently ignore anything but
1911 * directories, regular files and symlinks. That's because git
1912 * doesn't handle them at all yet. Maybe that will change some
1915 * Also, we ignore the name ".git" (even if it is not a directory).
1916 * That likely will not change.
1918 * If 'stop_at_first_file' is specified, 'path_excluded' is returned
1919 * to signal that a file was found. This is the least significant value that
1920 * indicates that a file was encountered that does not depend on the order of
1921 * whether an untracked or exluded path was encountered first.
1923 * Returns the most significant path_treatment value encountered in the scan.
1924 * If 'stop_at_first_file' is specified, `path_excluded` is the most
1925 * significant path_treatment value that will be returned.
1928 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
1929 struct index_state
*istate
, const char *base
, int baselen
,
1930 struct untracked_cache_dir
*untracked
, int check_only
,
1931 int stop_at_first_file
, const struct pathspec
*pathspec
)
1933 struct cached_dir cdir
;
1934 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
1935 struct strbuf path
= STRBUF_INIT
;
1937 strbuf_add(&path
, base
, baselen
);
1939 if (open_cached_dir(&cdir
, dir
, untracked
, istate
, &path
, check_only
))
1943 untracked
->check_only
= !!check_only
;
1945 while (!read_cached_dir(&cdir
)) {
1946 /* check how the file or directory should be treated */
1947 state
= treat_path(dir
, untracked
, &cdir
, istate
, &path
,
1950 if (state
> dir_state
)
1953 /* recurse into subdir if instructed by treat_path */
1954 if ((state
== path_recurse
) ||
1955 ((state
== path_untracked
) &&
1956 (dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
1957 (get_dtype(cdir
.de
, istate
, path
.buf
, path
.len
) == DT_DIR
))) {
1958 struct untracked_cache_dir
*ud
;
1959 ud
= lookup_untracked(dir
->untracked
, untracked
,
1961 path
.len
- baselen
);
1963 read_directory_recursive(dir
, istate
, path
.buf
,
1965 check_only
, stop_at_first_file
, pathspec
);
1966 if (subdir_state
> dir_state
)
1967 dir_state
= subdir_state
;
1971 if (stop_at_first_file
) {
1973 * If stopping at first file, then
1974 * signal that a file was found by
1975 * returning `path_excluded`. This is
1976 * to return a consistent value
1977 * regardless of whether an ignored or
1978 * excluded file happened to be
1981 * In current usage, the
1982 * `stop_at_first_file` is passed when
1983 * an ancestor directory has matched
1984 * an exclude pattern, so any found
1985 * files will be excluded.
1987 if (dir_state
>= path_excluded
) {
1988 dir_state
= path_excluded
;
1993 /* abort early if maximum state has been reached */
1994 if (dir_state
== path_untracked
) {
1996 add_untracked(untracked
, path
.buf
+ baselen
);
1999 /* skip the dir_add_* part */
2003 /* add the path to the appropriate result list */
2006 if (dir
->flags
& DIR_SHOW_IGNORED
)
2007 dir_add_name(dir
, istate
, path
.buf
, path
.len
);
2008 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
2009 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
2010 exclude_matches_pathspec(path
.buf
, path
.len
,
2012 dir_add_ignored(dir
, istate
, path
.buf
, path
.len
);
2015 case path_untracked
:
2016 if (dir
->flags
& DIR_SHOW_IGNORED
)
2018 dir_add_name(dir
, istate
, path
.buf
, path
.len
);
2020 add_untracked(untracked
, path
.buf
+ baselen
);
2027 close_cached_dir(&cdir
);
2029 strbuf_release(&path
);
2034 int cmp_dir_entry(const void *p1
, const void *p2
)
2036 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
2037 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
2039 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
2042 /* check if *out lexically strictly contains *in */
2043 int check_dir_entry_contains(const struct dir_entry
*out
, const struct dir_entry
*in
)
2045 return (out
->len
< in
->len
) &&
2046 (out
->name
[out
->len
- 1] == '/') &&
2047 !memcmp(out
->name
, in
->name
, out
->len
);
2050 static int treat_leading_path(struct dir_struct
*dir
,
2051 struct index_state
*istate
,
2052 const char *path
, int len
,
2053 const struct pathspec
*pathspec
)
2055 struct strbuf sb
= STRBUF_INIT
;
2056 int baselen
, rc
= 0;
2058 int old_flags
= dir
->flags
;
2060 while (len
&& path
[len
- 1] == '/')
2065 dir
->flags
&= ~DIR_SHOW_OTHER_DIRECTORIES
;
2067 cp
= path
+ baselen
+ !!baselen
;
2068 cp
= memchr(cp
, '/', path
+ len
- cp
);
2072 baselen
= cp
- path
;
2073 strbuf_setlen(&sb
, 0);
2074 strbuf_add(&sb
, path
, baselen
);
2075 if (!is_directory(sb
.buf
))
2077 if (simplify_away(sb
.buf
, sb
.len
, pathspec
))
2079 if (treat_one_path(dir
, NULL
, istate
, &sb
, baselen
, pathspec
,
2080 DT_DIR
, NULL
) == path_none
)
2081 break; /* do not recurse into it */
2082 if (len
<= baselen
) {
2084 break; /* finished checking */
2087 strbuf_release(&sb
);
2088 dir
->flags
= old_flags
;
2092 static const char *get_ident_string(void)
2094 static struct strbuf sb
= STRBUF_INIT
;
2099 if (uname(&uts
) < 0)
2100 die_errno(_("failed to get kernel name and information"));
2101 strbuf_addf(&sb
, "Location %s, system %s", get_git_work_tree(),
2106 static int ident_in_untracked(const struct untracked_cache
*uc
)
2109 * Previous git versions may have saved many NUL separated
2110 * strings in the "ident" field, but it is insane to manage
2111 * many locations, so just take care of the first one.
2114 return !strcmp(uc
->ident
.buf
, get_ident_string());
2117 static void set_untracked_ident(struct untracked_cache
*uc
)
2119 strbuf_reset(&uc
->ident
);
2120 strbuf_addstr(&uc
->ident
, get_ident_string());
2123 * This strbuf used to contain a list of NUL separated
2124 * strings, so save NUL too for backward compatibility.
2126 strbuf_addch(&uc
->ident
, 0);
2129 static void new_untracked_cache(struct index_state
*istate
)
2131 struct untracked_cache
*uc
= xcalloc(1, sizeof(*uc
));
2132 strbuf_init(&uc
->ident
, 100);
2133 uc
->exclude_per_dir
= ".gitignore";
2134 /* should be the same flags used by git-status */
2135 uc
->dir_flags
= DIR_SHOW_OTHER_DIRECTORIES
| DIR_HIDE_EMPTY_DIRECTORIES
;
2136 set_untracked_ident(uc
);
2137 istate
->untracked
= uc
;
2138 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2141 void add_untracked_cache(struct index_state
*istate
)
2143 if (!istate
->untracked
) {
2144 new_untracked_cache(istate
);
2146 if (!ident_in_untracked(istate
->untracked
)) {
2147 free_untracked_cache(istate
->untracked
);
2148 new_untracked_cache(istate
);
2153 void remove_untracked_cache(struct index_state
*istate
)
2155 if (istate
->untracked
) {
2156 free_untracked_cache(istate
->untracked
);
2157 istate
->untracked
= NULL
;
2158 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2162 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
2164 const struct pathspec
*pathspec
)
2166 struct untracked_cache_dir
*root
;
2168 if (!dir
->untracked
|| getenv("GIT_DISABLE_UNTRACKED_CACHE"))
2172 * We only support $GIT_DIR/info/exclude and core.excludesfile
2173 * as the global ignore rule files. Any other additions
2174 * (e.g. from command line) invalidate the cache. This
2175 * condition also catches running setup_standard_excludes()
2176 * before setting dir->untracked!
2178 if (dir
->unmanaged_exclude_files
)
2182 * Optimize for the main use case only: whole-tree git
2183 * status. More work involved in treat_leading_path() if we
2184 * use cache on just a subset of the worktree. pathspec
2185 * support could make the matter even worse.
2187 if (base_len
|| (pathspec
&& pathspec
->nr
))
2190 /* Different set of flags may produce different results */
2191 if (dir
->flags
!= dir
->untracked
->dir_flags
||
2193 * See treat_directory(), case index_nonexistent. Without
2194 * this flag, we may need to also cache .git file content
2195 * for the resolve_gitlink_ref() call, which we don't.
2197 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
2198 /* We don't support collecting ignore files */
2199 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
2200 DIR_COLLECT_IGNORED
)))
2204 * If we use .gitignore in the cache and now you change it to
2205 * .gitexclude, everything will go wrong.
2207 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
2208 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
2212 * EXC_CMDL is not considered in the cache. If people set it,
2215 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
2218 if (!ident_in_untracked(dir
->untracked
)) {
2219 warning(_("Untracked cache is disabled on this system or location."));
2223 if (!dir
->untracked
->root
) {
2224 const int len
= sizeof(*dir
->untracked
->root
);
2225 dir
->untracked
->root
= xmalloc(len
);
2226 memset(dir
->untracked
->root
, 0, len
);
2229 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2230 root
= dir
->untracked
->root
;
2231 if (hashcmp(dir
->ss_info_exclude
.sha1
,
2232 dir
->untracked
->ss_info_exclude
.sha1
)) {
2233 invalidate_gitignore(dir
->untracked
, root
);
2234 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2236 if (hashcmp(dir
->ss_excludes_file
.sha1
,
2237 dir
->untracked
->ss_excludes_file
.sha1
)) {
2238 invalidate_gitignore(dir
->untracked
, root
);
2239 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2242 /* Make sure this directory is not dropped out at saving phase */
2247 int read_directory(struct dir_struct
*dir
, struct index_state
*istate
,
2248 const char *path
, int len
, const struct pathspec
*pathspec
)
2250 struct untracked_cache_dir
*untracked
;
2251 uint64_t start
= getnanotime();
2253 if (has_symlink_leading_path(path
, len
))
2256 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2259 * make sure untracked cache code path is disabled,
2260 * e.g. prep_exclude()
2262 dir
->untracked
= NULL
;
2263 if (!len
|| treat_leading_path(dir
, istate
, path
, len
, pathspec
))
2264 read_directory_recursive(dir
, istate
, path
, len
, untracked
, 0, 0, pathspec
);
2265 QSORT(dir
->entries
, dir
->nr
, cmp_dir_entry
);
2266 QSORT(dir
->ignored
, dir
->ignored_nr
, cmp_dir_entry
);
2269 * If DIR_SHOW_IGNORED_TOO is set, read_directory_recursive() will
2270 * also pick up untracked contents of untracked dirs; by default
2271 * we discard these, but given DIR_KEEP_UNTRACKED_CONTENTS we do not.
2273 if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) &&
2274 !(dir
->flags
& DIR_KEEP_UNTRACKED_CONTENTS
)) {
2277 /* remove from dir->entries untracked contents of untracked dirs */
2278 for (i
= j
= 0; j
< dir
->nr
; j
++) {
2280 check_dir_entry_contains(dir
->entries
[i
- 1], dir
->entries
[j
])) {
2281 FREE_AND_NULL(dir
->entries
[j
]);
2283 dir
->entries
[i
++] = dir
->entries
[j
];
2290 trace_performance_since(start
, "read directory %.*s", len
, path
);
2291 if (dir
->untracked
) {
2292 static struct trace_key trace_untracked_stats
= TRACE_KEY_INIT(UNTRACKED_STATS
);
2293 trace_printf_key(&trace_untracked_stats
,
2294 "node creation: %u\n"
2295 "gitignore invalidation: %u\n"
2296 "directory invalidation: %u\n"
2298 dir
->untracked
->dir_created
,
2299 dir
->untracked
->gitignore_invalidated
,
2300 dir
->untracked
->dir_invalidated
,
2301 dir
->untracked
->dir_opened
);
2302 if (dir
->untracked
== istate
->untracked
&&
2303 (dir
->untracked
->dir_opened
||
2304 dir
->untracked
->gitignore_invalidated
||
2305 dir
->untracked
->dir_invalidated
))
2306 istate
->cache_changed
|= UNTRACKED_CHANGED
;
2307 if (dir
->untracked
!= istate
->untracked
) {
2308 FREE_AND_NULL(dir
->untracked
);
2314 int file_exists(const char *f
)
2317 return lstat(f
, &sb
) == 0;
2320 static int cmp_icase(char a
, char b
)
2325 return toupper(a
) - toupper(b
);
2330 * Given two normalized paths (a trailing slash is ok), if subdir is
2331 * outside dir, return -1. Otherwise return the offset in subdir that
2332 * can be used as relative path to dir.
2334 int dir_inside_of(const char *subdir
, const char *dir
)
2338 assert(dir
&& subdir
&& *dir
&& *subdir
);
2340 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2346 /* hel[p]/me vs hel[l]/yeah */
2347 if (*dir
&& *subdir
)
2351 return !*dir
? offset
: -1; /* same dir */
2353 /* foo/[b]ar vs foo/[] */
2354 if (is_dir_sep(dir
[-1]))
2355 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2357 /* foo[/]bar vs foo[] */
2358 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2361 int is_inside_dir(const char *dir
)
2370 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2375 int is_empty_dir(const char *path
)
2377 DIR *dir
= opendir(path
);
2384 while ((e
= readdir(dir
)) != NULL
)
2385 if (!is_dot_or_dotdot(e
->d_name
)) {
2394 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2398 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2399 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2400 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2401 struct object_id submodule_head
;
2403 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2404 !resolve_gitlink_ref(path
->buf
, "HEAD", &submodule_head
)) {
2405 /* Do not descend and nuke a nested git work tree. */
2411 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2412 dir
= opendir(path
->buf
);
2414 if (errno
== ENOENT
)
2415 return keep_toplevel
? -1 : 0;
2416 else if (errno
== EACCES
&& !keep_toplevel
)
2418 * An empty dir could be removable even if it
2421 return rmdir(path
->buf
);
2425 strbuf_complete(path
, '/');
2428 while ((e
= readdir(dir
)) != NULL
) {
2430 if (is_dot_or_dotdot(e
->d_name
))
2433 strbuf_setlen(path
, len
);
2434 strbuf_addstr(path
, e
->d_name
);
2435 if (lstat(path
->buf
, &st
)) {
2436 if (errno
== ENOENT
)
2438 * file disappeared, which is what we
2443 } else if (S_ISDIR(st
.st_mode
)) {
2444 if (!remove_dir_recurse(path
, flag
, &kept_down
))
2445 continue; /* happy */
2446 } else if (!only_empty
&&
2447 (!unlink(path
->buf
) || errno
== ENOENT
)) {
2448 continue; /* happy, too */
2451 /* path too long, stat fails, or non-directory still exists */
2457 strbuf_setlen(path
, original_len
);
2458 if (!ret
&& !keep_toplevel
&& !kept_down
)
2459 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
2462 * report the uplevel that it is not an error that we
2463 * did not rmdir() our directory.
2469 int remove_dir_recursively(struct strbuf
*path
, int flag
)
2471 return remove_dir_recurse(path
, flag
, NULL
);
2474 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
2476 void setup_standard_excludes(struct dir_struct
*dir
)
2478 dir
->exclude_per_dir
= ".gitignore";
2480 /* core.excludefile defaulting to $XDG_HOME/git/ignore */
2482 excludes_file
= xdg_config_home("ignore");
2483 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
2484 add_excludes_from_file_1(dir
, excludes_file
,
2485 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
2487 /* per repository user preference */
2488 if (startup_info
->have_repository
) {
2489 const char *path
= git_path_info_exclude();
2490 if (!access_or_warn(path
, R_OK
, 0))
2491 add_excludes_from_file_1(dir
, path
,
2492 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
2496 int remove_path(const char *name
)
2500 if (unlink(name
) && !is_missing_file_error(errno
))
2503 slash
= strrchr(name
, '/');
2505 char *dirs
= xstrdup(name
);
2506 slash
= dirs
+ (slash
- name
);
2509 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
2516 * Frees memory within dir which was allocated for exclude lists and
2517 * the exclude_stack. Does not free dir itself.
2519 void clear_directory(struct dir_struct
*dir
)
2522 struct exclude_list_group
*group
;
2523 struct exclude_list
*el
;
2524 struct exclude_stack
*stk
;
2526 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
2527 group
= &dir
->exclude_list_group
[i
];
2528 for (j
= 0; j
< group
->nr
; j
++) {
2531 free((char *)el
->src
);
2532 clear_exclude_list(el
);
2537 stk
= dir
->exclude_stack
;
2539 struct exclude_stack
*prev
= stk
->prev
;
2543 strbuf_release(&dir
->basebuf
);
2546 struct ondisk_untracked_cache
{
2547 struct stat_data info_exclude_stat
;
2548 struct stat_data excludes_file_stat
;
2550 unsigned char info_exclude_sha1
[20];
2551 unsigned char excludes_file_sha1
[20];
2552 char exclude_per_dir
[FLEX_ARRAY
];
2555 #define ouc_offset(x) offsetof(struct ondisk_untracked_cache, x)
2556 #define ouc_size(len) (ouc_offset(exclude_per_dir) + len + 1)
2559 int index
; /* number of written untracked_cache_dir */
2560 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
2561 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
2562 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
2564 struct strbuf sb_stat
;
2565 struct strbuf sb_sha1
;
2568 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
2570 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
2571 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
2572 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
2573 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
2574 to
->sd_dev
= htonl(from
->sd_dev
);
2575 to
->sd_ino
= htonl(from
->sd_ino
);
2576 to
->sd_uid
= htonl(from
->sd_uid
);
2577 to
->sd_gid
= htonl(from
->sd_gid
);
2578 to
->sd_size
= htonl(from
->sd_size
);
2581 static void write_one_dir(struct untracked_cache_dir
*untracked
,
2582 struct write_data
*wd
)
2584 struct stat_data stat_data
;
2585 struct strbuf
*out
= &wd
->out
;
2586 unsigned char intbuf
[16];
2587 unsigned int intlen
, value
;
2588 int i
= wd
->index
++;
2591 * untracked_nr should be reset whenever valid is clear, but
2594 if (!untracked
->valid
) {
2595 untracked
->untracked_nr
= 0;
2596 untracked
->check_only
= 0;
2599 if (untracked
->check_only
)
2600 ewah_set(wd
->check_only
, i
);
2601 if (untracked
->valid
) {
2602 ewah_set(wd
->valid
, i
);
2603 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
2604 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
2606 if (!is_null_sha1(untracked
->exclude_sha1
)) {
2607 ewah_set(wd
->sha1_valid
, i
);
2608 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_sha1
, 20);
2611 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
2612 strbuf_add(out
, intbuf
, intlen
);
2614 /* skip non-recurse directories */
2615 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
2616 if (untracked
->dirs
[i
]->recurse
)
2618 intlen
= encode_varint(value
, intbuf
);
2619 strbuf_add(out
, intbuf
, intlen
);
2621 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
2623 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
2624 strbuf_add(out
, untracked
->untracked
[i
],
2625 strlen(untracked
->untracked
[i
]) + 1);
2627 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
2628 if (untracked
->dirs
[i
]->recurse
)
2629 write_one_dir(untracked
->dirs
[i
], wd
);
2632 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
2634 struct ondisk_untracked_cache
*ouc
;
2635 struct write_data wd
;
2636 unsigned char varbuf
[16];
2638 size_t len
= strlen(untracked
->exclude_per_dir
);
2640 FLEX_ALLOC_MEM(ouc
, exclude_per_dir
, untracked
->exclude_per_dir
, len
);
2641 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
2642 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
2643 hashcpy(ouc
->info_exclude_sha1
, untracked
->ss_info_exclude
.sha1
);
2644 hashcpy(ouc
->excludes_file_sha1
, untracked
->ss_excludes_file
.sha1
);
2645 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
2647 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
2648 strbuf_add(out
, varbuf
, varint_len
);
2649 strbuf_addbuf(out
, &untracked
->ident
);
2651 strbuf_add(out
, ouc
, ouc_size(len
));
2654 if (!untracked
->root
) {
2655 varint_len
= encode_varint(0, varbuf
);
2656 strbuf_add(out
, varbuf
, varint_len
);
2661 wd
.check_only
= ewah_new();
2662 wd
.valid
= ewah_new();
2663 wd
.sha1_valid
= ewah_new();
2664 strbuf_init(&wd
.out
, 1024);
2665 strbuf_init(&wd
.sb_stat
, 1024);
2666 strbuf_init(&wd
.sb_sha1
, 1024);
2667 write_one_dir(untracked
->root
, &wd
);
2669 varint_len
= encode_varint(wd
.index
, varbuf
);
2670 strbuf_add(out
, varbuf
, varint_len
);
2671 strbuf_addbuf(out
, &wd
.out
);
2672 ewah_serialize_strbuf(wd
.valid
, out
);
2673 ewah_serialize_strbuf(wd
.check_only
, out
);
2674 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
2675 strbuf_addbuf(out
, &wd
.sb_stat
);
2676 strbuf_addbuf(out
, &wd
.sb_sha1
);
2677 strbuf_addch(out
, '\0'); /* safe guard for string lists */
2679 ewah_free(wd
.valid
);
2680 ewah_free(wd
.check_only
);
2681 ewah_free(wd
.sha1_valid
);
2682 strbuf_release(&wd
.out
);
2683 strbuf_release(&wd
.sb_stat
);
2684 strbuf_release(&wd
.sb_sha1
);
2687 static void free_untracked(struct untracked_cache_dir
*ucd
)
2692 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
2693 free_untracked(ucd
->dirs
[i
]);
2694 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
2695 free(ucd
->untracked
[i
]);
2696 free(ucd
->untracked
);
2701 void free_untracked_cache(struct untracked_cache
*uc
)
2704 free_untracked(uc
->root
);
2710 struct untracked_cache_dir
**ucd
;
2711 struct ewah_bitmap
*check_only
;
2712 struct ewah_bitmap
*valid
;
2713 struct ewah_bitmap
*sha1_valid
;
2714 const unsigned char *data
;
2715 const unsigned char *end
;
2718 static void stat_data_from_disk(struct stat_data
*to
, const unsigned char *data
)
2720 memcpy(to
, data
, sizeof(*to
));
2721 to
->sd_ctime
.sec
= ntohl(to
->sd_ctime
.sec
);
2722 to
->sd_ctime
.nsec
= ntohl(to
->sd_ctime
.nsec
);
2723 to
->sd_mtime
.sec
= ntohl(to
->sd_mtime
.sec
);
2724 to
->sd_mtime
.nsec
= ntohl(to
->sd_mtime
.nsec
);
2725 to
->sd_dev
= ntohl(to
->sd_dev
);
2726 to
->sd_ino
= ntohl(to
->sd_ino
);
2727 to
->sd_uid
= ntohl(to
->sd_uid
);
2728 to
->sd_gid
= ntohl(to
->sd_gid
);
2729 to
->sd_size
= ntohl(to
->sd_size
);
2732 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
2733 struct read_data
*rd
)
2735 struct untracked_cache_dir ud
, *untracked
;
2736 const unsigned char *next
, *data
= rd
->data
, *end
= rd
->end
;
2740 memset(&ud
, 0, sizeof(ud
));
2743 value
= decode_varint(&next
);
2747 ud
.untracked_alloc
= value
;
2748 ud
.untracked_nr
= value
;
2749 if (ud
.untracked_nr
)
2750 ALLOC_ARRAY(ud
.untracked
, ud
.untracked_nr
);
2754 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&next
);
2757 ALLOC_ARRAY(ud
.dirs
, ud
.dirs_nr
);
2760 len
= strlen((const char *)data
);
2761 next
= data
+ len
+ 1;
2764 *untracked_
= untracked
= xmalloc(st_add(sizeof(*untracked
), len
));
2765 memcpy(untracked
, &ud
, sizeof(ud
));
2766 memcpy(untracked
->name
, data
, len
+ 1);
2769 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
2770 len
= strlen((const char *)data
);
2771 next
= data
+ len
+ 1;
2774 untracked
->untracked
[i
] = xstrdup((const char*)data
);
2778 rd
->ucd
[rd
->index
++] = untracked
;
2781 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
2782 len
= read_one_dir(untracked
->dirs
+ i
, rd
);
2789 static void set_check_only(size_t pos
, void *cb
)
2791 struct read_data
*rd
= cb
;
2792 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2796 static void read_stat(size_t pos
, void *cb
)
2798 struct read_data
*rd
= cb
;
2799 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2800 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
2801 rd
->data
= rd
->end
+ 1;
2804 stat_data_from_disk(&ud
->stat_data
, rd
->data
);
2805 rd
->data
+= sizeof(struct stat_data
);
2809 static void read_sha1(size_t pos
, void *cb
)
2811 struct read_data
*rd
= cb
;
2812 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2813 if (rd
->data
+ 20 > rd
->end
) {
2814 rd
->data
= rd
->end
+ 1;
2817 hashcpy(ud
->exclude_sha1
, rd
->data
);
2821 static void load_sha1_stat(struct sha1_stat
*sha1_stat
,
2822 const unsigned char *data
,
2823 const unsigned char *sha1
)
2825 stat_data_from_disk(&sha1_stat
->stat
, data
);
2826 hashcpy(sha1_stat
->sha1
, sha1
);
2827 sha1_stat
->valid
= 1;
2830 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
2832 struct untracked_cache
*uc
;
2833 struct read_data rd
;
2834 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
2837 const char *exclude_per_dir
;
2839 if (sz
<= 1 || end
[-1] != '\0')
2843 ident_len
= decode_varint(&next
);
2844 if (next
+ ident_len
> end
)
2846 ident
= (const char *)next
;
2849 if (next
+ ouc_size(0) > end
)
2852 uc
= xcalloc(1, sizeof(*uc
));
2853 strbuf_init(&uc
->ident
, ident_len
);
2854 strbuf_add(&uc
->ident
, ident
, ident_len
);
2855 load_sha1_stat(&uc
->ss_info_exclude
,
2856 next
+ ouc_offset(info_exclude_stat
),
2857 next
+ ouc_offset(info_exclude_sha1
));
2858 load_sha1_stat(&uc
->ss_excludes_file
,
2859 next
+ ouc_offset(excludes_file_stat
),
2860 next
+ ouc_offset(excludes_file_sha1
));
2861 uc
->dir_flags
= get_be32(next
+ ouc_offset(dir_flags
));
2862 exclude_per_dir
= (const char *)next
+ ouc_offset(exclude_per_dir
);
2863 uc
->exclude_per_dir
= xstrdup(exclude_per_dir
);
2864 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
2865 next
+= ouc_size(strlen(exclude_per_dir
));
2869 len
= decode_varint(&next
);
2870 if (next
> end
|| len
== 0)
2873 rd
.valid
= ewah_new();
2874 rd
.check_only
= ewah_new();
2875 rd
.sha1_valid
= ewah_new();
2879 ALLOC_ARRAY(rd
.ucd
, len
);
2881 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
2885 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
2890 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
2895 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
2899 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
2900 rd
.data
= next
+ len
;
2901 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
2902 ewah_each_bit(rd
.sha1_valid
, read_sha1
, &rd
);
2907 ewah_free(rd
.valid
);
2908 ewah_free(rd
.check_only
);
2909 ewah_free(rd
.sha1_valid
);
2912 free_untracked_cache(uc
);
2918 static void invalidate_one_directory(struct untracked_cache
*uc
,
2919 struct untracked_cache_dir
*ucd
)
2921 uc
->dir_invalidated
++;
2923 ucd
->untracked_nr
= 0;
2927 * Normally when an entry is added or removed from a directory,
2928 * invalidating that directory is enough. No need to touch its
2929 * ancestors. When a directory is shown as "foo/bar/" in git-status
2930 * however, deleting or adding an entry may have cascading effect.
2932 * Say the "foo/bar/file" has become untracked, we need to tell the
2933 * untracked_cache_dir of "foo" that "bar/" is not an untracked
2934 * directory any more (because "bar" is managed by foo as an untracked
2937 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
2938 * was the last untracked entry in the entire "foo", we should show
2939 * "foo/" instead. Which means we have to invalidate past "bar" up to
2942 * This function traverses all directories from root to leaf. If there
2943 * is a chance of one of the above cases happening, we invalidate back
2944 * to root. Otherwise we just invalidate the leaf. There may be a more
2945 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
2946 * detect these cases and avoid unnecessary invalidation, for example,
2947 * checking for the untracked entry named "bar/" in "foo", but for now
2948 * stick to something safe and simple.
2950 static int invalidate_one_component(struct untracked_cache
*uc
,
2951 struct untracked_cache_dir
*dir
,
2952 const char *path
, int len
)
2954 const char *rest
= strchr(path
, '/');
2957 int component_len
= rest
- path
;
2958 struct untracked_cache_dir
*d
=
2959 lookup_untracked(uc
, dir
, path
, component_len
);
2961 invalidate_one_component(uc
, d
, rest
+ 1,
2962 len
- (component_len
+ 1));
2964 invalidate_one_directory(uc
, dir
);
2968 invalidate_one_directory(uc
, dir
);
2969 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
2972 void untracked_cache_invalidate_path(struct index_state
*istate
,
2975 if (!istate
->untracked
|| !istate
->untracked
->root
)
2977 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
2978 path
, strlen(path
));
2981 void untracked_cache_remove_from_index(struct index_state
*istate
,
2984 untracked_cache_invalidate_path(istate
, path
);
2987 void untracked_cache_add_to_index(struct index_state
*istate
,
2990 untracked_cache_invalidate_path(istate
, path
);
2993 /* Update gitfile and core.worktree setting to connect work tree and git dir */
2994 void connect_work_tree_and_git_dir(const char *work_tree_
, const char *git_dir_
)
2996 struct strbuf gitfile_sb
= STRBUF_INIT
;
2997 struct strbuf cfg_sb
= STRBUF_INIT
;
2998 struct strbuf rel_path
= STRBUF_INIT
;
2999 char *git_dir
, *work_tree
;
3001 /* Prepare .git file */
3002 strbuf_addf(&gitfile_sb
, "%s/.git", work_tree_
);
3003 if (safe_create_leading_directories_const(gitfile_sb
.buf
))
3004 die(_("could not create directories for %s"), gitfile_sb
.buf
);
3006 /* Prepare config file */
3007 strbuf_addf(&cfg_sb
, "%s/config", git_dir_
);
3008 if (safe_create_leading_directories_const(cfg_sb
.buf
))
3009 die(_("could not create directories for %s"), cfg_sb
.buf
);
3011 git_dir
= real_pathdup(git_dir_
, 1);
3012 work_tree
= real_pathdup(work_tree_
, 1);
3014 /* Write .git file */
3015 write_file(gitfile_sb
.buf
, "gitdir: %s",
3016 relative_path(git_dir
, work_tree
, &rel_path
));
3017 /* Update core.worktree setting */
3018 git_config_set_in_file(cfg_sb
.buf
, "core.worktree",
3019 relative_path(work_tree
, git_dir
, &rel_path
));
3021 strbuf_release(&gitfile_sb
);
3022 strbuf_release(&cfg_sb
);
3023 strbuf_release(&rel_path
);
3029 * Migrate the git directory of the given path from old_git_dir to new_git_dir.
3031 void relocate_gitdir(const char *path
, const char *old_git_dir
, const char *new_git_dir
)
3033 if (rename(old_git_dir
, new_git_dir
) < 0)
3034 die_errno(_("could not migrate git directory from '%s' to '%s'"),
3035 old_git_dir
, new_git_dir
);
3037 connect_work_tree_and_git_dir(path
, new_git_dir
);