2 * This handles recursive filename detection with exclude
3 * files, index knowledge etc..
5 * See Documentation/technical/api-directory-listing.txt
7 * Copyright (C) Linus Torvalds, 2005-2006
8 * Junio Hamano, 2005-2006
13 #include "wildmatch.h"
17 #include "ewah/ewok.h"
19 struct path_simplify
{
25 * Tells read_directory_recursive how a file or directory should be treated.
26 * Values are ordered by significance, e.g. if a directory contains both
27 * excluded and untracked files, it is listed as untracked because
28 * path_untracked > path_excluded.
38 * Support data structure for our opendir/readdir/closedir wrappers
42 struct untracked_cache_dir
*untracked
;
48 struct untracked_cache_dir
*ucd
;
51 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
52 const char *path
, int len
, struct untracked_cache_dir
*untracked
,
53 int check_only
, const struct path_simplify
*simplify
);
54 static int get_dtype(struct dirent
*de
, const char *path
, int len
);
56 /* helper string functions with support for the ignore_case flag */
57 int strcmp_icase(const char *a
, const char *b
)
59 return ignore_case
? strcasecmp(a
, b
) : strcmp(a
, b
);
62 int strncmp_icase(const char *a
, const char *b
, size_t count
)
64 return ignore_case
? strncasecmp(a
, b
, count
) : strncmp(a
, b
, count
);
67 int fnmatch_icase(const char *pattern
, const char *string
, int flags
)
69 return wildmatch(pattern
, string
,
70 flags
| (ignore_case
? WM_CASEFOLD
: 0),
74 int git_fnmatch(const struct pathspec_item
*item
,
75 const char *pattern
, const char *string
,
79 if (ps_strncmp(item
, pattern
, string
, prefix
))
84 if (item
->flags
& PATHSPEC_ONESTAR
) {
85 int pattern_len
= strlen(++pattern
);
86 int string_len
= strlen(string
);
87 return string_len
< pattern_len
||
88 ps_strcmp(item
, pattern
,
89 string
+ string_len
- pattern_len
);
91 if (item
->magic
& PATHSPEC_GLOB
)
92 return wildmatch(pattern
, string
,
94 (item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0),
97 /* wildmatch has not learned no FNM_PATHNAME mode yet */
98 return wildmatch(pattern
, string
,
99 item
->magic
& PATHSPEC_ICASE
? WM_CASEFOLD
: 0,
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
, NULL
);
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
,
152 for (n
= 0; n
< pathspec
->nr
; n
++) {
153 size_t i
= 0, len
= 0, item_len
;
154 if (pathspec
->items
[n
].magic
& PATHSPEC_EXCLUDE
)
156 if (pathspec
->items
[n
].magic
& PATHSPEC_ICASE
)
157 item_len
= pathspec
->items
[n
].prefix
;
159 item_len
= pathspec
->items
[n
].nowildcard_len
;
160 while (i
< item_len
&& (n
== 0 || i
< max
)) {
161 char c
= pathspec
->items
[n
].match
[i
];
162 if (c
!= pathspec
->items
[0].match
[i
])
168 if (n
== 0 || len
< max
) {
178 * Returns a copy of the longest leading path common among all
181 char *common_prefix(const struct pathspec
*pathspec
)
183 unsigned long len
= common_prefix_len(pathspec
);
185 return len
? xmemdupz(pathspec
->items
[0].match
, len
) : NULL
;
188 int fill_directory(struct dir_struct
*dir
, const struct pathspec
*pathspec
)
193 * Calculate common prefix for the pathspec, and
194 * use that to optimize the directory walk
196 len
= common_prefix_len(pathspec
);
198 /* Read the directory and prune it */
199 read_directory(dir
, pathspec
->nr
? pathspec
->_raw
[0] : "", len
, pathspec
);
203 int within_depth(const char *name
, int namelen
,
204 int depth
, int max_depth
)
206 const char *cp
= name
, *cpe
= name
+ namelen
;
212 if (depth
> max_depth
)
218 #define DO_MATCH_EXCLUDE 1
219 #define DO_MATCH_DIRECTORY 2
222 * Does 'match' match the given name?
223 * A match is found if
225 * (1) the 'match' string is leading directory of 'name', or
226 * (2) the 'match' string is a wildcard and matches 'name', or
227 * (3) the 'match' string is exactly the same as 'name'.
229 * and the return value tells which case it was.
231 * It returns 0 when there is no match.
233 static int match_pathspec_item(const struct pathspec_item
*item
, int prefix
,
234 const char *name
, int namelen
, unsigned flags
)
236 /* name/namelen has prefix cut off by caller */
237 const char *match
= item
->match
+ prefix
;
238 int matchlen
= item
->len
- prefix
;
241 * The normal call pattern is:
242 * 1. prefix = common_prefix_len(ps);
243 * 2. prune something, or fill_directory
244 * 3. match_pathspec()
246 * 'prefix' at #1 may be shorter than the command's prefix and
247 * it's ok for #2 to match extra files. Those extras will be
250 * Suppose the pathspec is 'foo' and '../bar' running from
251 * subdir 'xyz'. The common prefix at #1 will be empty, thanks
252 * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The
253 * user does not want XYZ/foo, only the "foo" part should be
254 * case-insensitive. We need to filter out XYZ/foo here. In
255 * other words, we do not trust the caller on comparing the
256 * prefix part when :(icase) is involved. We do exact
257 * comparison ourselves.
259 * Normally the caller (common_prefix_len() in fact) does
260 * _exact_ matching on name[-prefix+1..-1] and we do not need
261 * to check that part. Be defensive and check it anyway, in
262 * case common_prefix_len is changed, or a new caller is
263 * introduced that does not use common_prefix_len.
265 * If the penalty turns out too high when prefix is really
266 * long, maybe change it to
267 * strncmp(match, name, item->prefix - prefix)
269 if (item
->prefix
&& (item
->magic
& PATHSPEC_ICASE
) &&
270 strncmp(item
->match
, name
- prefix
, item
->prefix
))
273 /* If the match was just the prefix, we matched */
275 return MATCHED_RECURSIVELY
;
277 if (matchlen
<= namelen
&& !ps_strncmp(item
, match
, name
, matchlen
)) {
278 if (matchlen
== namelen
)
279 return MATCHED_EXACTLY
;
281 if (match
[matchlen
-1] == '/' || name
[matchlen
] == '/')
282 return MATCHED_RECURSIVELY
;
283 } else if ((flags
& DO_MATCH_DIRECTORY
) &&
284 match
[matchlen
- 1] == '/' &&
285 namelen
== matchlen
- 1 &&
286 !ps_strncmp(item
, match
, name
, namelen
))
287 return MATCHED_EXACTLY
;
289 if (item
->nowildcard_len
< item
->len
&&
290 !git_fnmatch(item
, match
, name
,
291 item
->nowildcard_len
- prefix
))
292 return MATCHED_FNMATCH
;
298 * Given a name and a list of pathspecs, returns the nature of the
299 * closest (i.e. most specific) match of the name to any of the
302 * The caller typically calls this multiple times with the same
303 * pathspec and seen[] array but with different name/namelen
304 * (e.g. entries from the index) and is interested in seeing if and
305 * how each pathspec matches all the names it calls this function
306 * with. A mark is left in the seen[] array for each pathspec element
307 * indicating the closest type of match that element achieved, so if
308 * seen[n] remains zero after multiple invocations, that means the nth
309 * pathspec did not match any names, which could indicate that the
310 * user mistyped the nth pathspec.
312 static int do_match_pathspec(const struct pathspec
*ps
,
313 const char *name
, int namelen
,
314 int prefix
, char *seen
,
317 int i
, retval
= 0, exclude
= flags
& DO_MATCH_EXCLUDE
;
328 if (!ps
->recursive
||
329 !(ps
->magic
& PATHSPEC_MAXDEPTH
) ||
331 return MATCHED_RECURSIVELY
;
333 if (within_depth(name
, namelen
, 0, ps
->max_depth
))
334 return MATCHED_EXACTLY
;
342 for (i
= ps
->nr
- 1; i
>= 0; i
--) {
345 if ((!exclude
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
) ||
346 ( exclude
&& !(ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)))
349 if (seen
&& seen
[i
] == MATCHED_EXACTLY
)
352 * Make exclude patterns optional and never report
353 * "pathspec ':(exclude)foo' matches no files"
355 if (seen
&& ps
->items
[i
].magic
& PATHSPEC_EXCLUDE
)
356 seen
[i
] = MATCHED_FNMATCH
;
357 how
= match_pathspec_item(ps
->items
+i
, prefix
, name
,
360 (ps
->magic
& PATHSPEC_MAXDEPTH
) &&
361 ps
->max_depth
!= -1 &&
362 how
&& how
!= MATCHED_FNMATCH
) {
363 int len
= ps
->items
[i
].len
;
364 if (name
[len
] == '/')
366 if (within_depth(name
+len
, namelen
-len
, 0, ps
->max_depth
))
367 how
= MATCHED_EXACTLY
;
374 if (seen
&& seen
[i
] < how
)
381 int match_pathspec(const struct pathspec
*ps
,
382 const char *name
, int namelen
,
383 int prefix
, char *seen
, int is_dir
)
385 int positive
, negative
;
386 unsigned flags
= is_dir
? DO_MATCH_DIRECTORY
: 0;
387 positive
= do_match_pathspec(ps
, name
, namelen
,
388 prefix
, seen
, flags
);
389 if (!(ps
->magic
& PATHSPEC_EXCLUDE
) || !positive
)
391 negative
= do_match_pathspec(ps
, name
, namelen
,
393 flags
| DO_MATCH_EXCLUDE
);
394 return negative
? 0 : positive
;
397 int report_path_error(const char *ps_matched
,
398 const struct pathspec
*pathspec
,
402 * Make sure all pathspec matched; otherwise it is an error.
405 for (num
= 0; num
< pathspec
->nr
; num
++) {
406 int other
, found_dup
;
411 * The caller might have fed identical pathspec
412 * twice. Do not barf on such a mistake.
413 * FIXME: parse_pathspec should have eliminated
414 * duplicate pathspec.
416 for (found_dup
= other
= 0;
417 !found_dup
&& other
< pathspec
->nr
;
419 if (other
== num
|| !ps_matched
[other
])
421 if (!strcmp(pathspec
->items
[other
].original
,
422 pathspec
->items
[num
].original
))
424 * Ok, we have a match already.
431 error("pathspec '%s' did not match any file(s) known to git.",
432 pathspec
->items
[num
].original
);
439 * Return the length of the "simple" part of a path match limiter.
441 int simple_length(const char *match
)
446 unsigned char c
= *match
++;
448 if (c
== '\0' || is_glob_special(c
))
453 int no_wildcard(const char *string
)
455 return string
[simple_length(string
)] == '\0';
458 void parse_exclude_pattern(const char **pattern
,
463 const char *p
= *pattern
;
468 *flags
|= EXC_FLAG_NEGATIVE
;
472 if (len
&& p
[len
- 1] == '/') {
474 *flags
|= EXC_FLAG_MUSTBEDIR
;
476 for (i
= 0; i
< len
; i
++) {
481 *flags
|= EXC_FLAG_NODIR
;
482 *nowildcardlen
= simple_length(p
);
484 * we should have excluded the trailing slash from 'p' too,
485 * but that's one more allocation. Instead just make sure
486 * nowildcardlen does not exceed real patternlen
488 if (*nowildcardlen
> len
)
489 *nowildcardlen
= len
;
490 if (*p
== '*' && no_wildcard(p
+ 1))
491 *flags
|= EXC_FLAG_ENDSWITH
;
496 void add_exclude(const char *string
, const char *base
,
497 int baselen
, struct exclude_list
*el
, int srcpos
)
504 parse_exclude_pattern(&string
, &patternlen
, &flags
, &nowildcardlen
);
505 if (flags
& EXC_FLAG_MUSTBEDIR
) {
507 x
= xmalloc(sizeof(*x
) + patternlen
+ 1);
509 memcpy(s
, string
, patternlen
);
510 s
[patternlen
] = '\0';
513 x
= xmalloc(sizeof(*x
));
516 x
->patternlen
= patternlen
;
517 x
->nowildcardlen
= nowildcardlen
;
519 x
->baselen
= baselen
;
522 ALLOC_GROW(el
->excludes
, el
->nr
+ 1, el
->alloc
);
523 el
->excludes
[el
->nr
++] = x
;
527 static void *read_skip_worktree_file_from_index(const char *path
, size_t *size
,
528 struct sha1_stat
*sha1_stat
)
532 enum object_type type
;
536 pos
= cache_name_pos(path
, len
);
539 if (!ce_skip_worktree(active_cache
[pos
]))
541 data
= read_sha1_file(active_cache
[pos
]->sha1
, &type
, &sz
);
542 if (!data
|| type
!= OBJ_BLOB
) {
548 memset(&sha1_stat
->stat
, 0, sizeof(sha1_stat
->stat
));
549 hashcpy(sha1_stat
->sha1
, active_cache
[pos
]->sha1
);
555 * Frees memory within el which was allocated for exclude patterns and
556 * the file buffer. Does not free el itself.
558 void clear_exclude_list(struct exclude_list
*el
)
562 for (i
= 0; i
< el
->nr
; i
++)
563 free(el
->excludes
[i
]);
567 memset(el
, 0, sizeof(*el
));
570 static void trim_trailing_spaces(char *buf
)
572 char *p
, *last_space
= NULL
;
574 for (p
= buf
; *p
; p
++)
594 * Given a subdirectory name and "dir" of the current directory,
595 * search the subdir in "dir" and return it, or create a new one if it
596 * does not exist in "dir".
598 * If "name" has the trailing slash, it'll be excluded in the search.
600 static struct untracked_cache_dir
*lookup_untracked(struct untracked_cache
*uc
,
601 struct untracked_cache_dir
*dir
,
602 const char *name
, int len
)
605 struct untracked_cache_dir
*d
;
608 if (len
&& name
[len
- 1] == '/')
612 while (last
> first
) {
613 int cmp
, next
= (last
+ first
) >> 1;
615 cmp
= strncmp(name
, d
->name
, len
);
616 if (!cmp
&& strlen(d
->name
) > len
)
628 d
= xmalloc(sizeof(*d
) + len
+ 1);
629 memset(d
, 0, sizeof(*d
));
630 memcpy(d
->name
, name
, len
);
633 ALLOC_GROW(dir
->dirs
, dir
->dirs_nr
+ 1, dir
->dirs_alloc
);
634 memmove(dir
->dirs
+ first
+ 1, dir
->dirs
+ first
,
635 (dir
->dirs_nr
- first
) * sizeof(*dir
->dirs
));
637 dir
->dirs
[first
] = d
;
641 static void do_invalidate_gitignore(struct untracked_cache_dir
*dir
)
645 dir
->untracked_nr
= 0;
646 for (i
= 0; i
< dir
->dirs_nr
; i
++)
647 do_invalidate_gitignore(dir
->dirs
[i
]);
650 static void invalidate_gitignore(struct untracked_cache
*uc
,
651 struct untracked_cache_dir
*dir
)
653 uc
->gitignore_invalidated
++;
654 do_invalidate_gitignore(dir
);
657 static void invalidate_directory(struct untracked_cache
*uc
,
658 struct untracked_cache_dir
*dir
)
661 uc
->dir_invalidated
++;
663 dir
->untracked_nr
= 0;
664 for (i
= 0; i
< dir
->dirs_nr
; i
++)
665 dir
->dirs
[i
]->recurse
= 0;
669 * Given a file with name "fname", read it (either from disk, or from
670 * the index if "check_index" is non-zero), parse it and store the
671 * exclude rules in "el".
673 * If "ss" is not NULL, compute SHA-1 of the exclude file and fill
674 * stat data from disk (only valid if add_excludes returns zero). If
675 * ss_valid is non-zero, "ss" must contain good value as input.
677 static int add_excludes(const char *fname
, const char *base
, int baselen
,
678 struct exclude_list
*el
, int check_index
,
679 struct sha1_stat
*sha1_stat
)
682 int fd
, i
, lineno
= 1;
686 fd
= open(fname
, O_RDONLY
);
687 if (fd
< 0 || fstat(fd
, &st
) < 0) {
689 warn_on_inaccessible(fname
);
693 (buf
= read_skip_worktree_file_from_index(fname
, &size
, sha1_stat
)) == NULL
)
699 if (buf
[size
-1] != '\n') {
700 buf
= xrealloc(buf
, size
+1);
704 size
= xsize_t(st
.st_size
);
707 fill_stat_data(&sha1_stat
->stat
, &st
);
708 hashcpy(sha1_stat
->sha1
, EMPTY_BLOB_SHA1_BIN
);
709 sha1_stat
->valid
= 1;
714 buf
= xmalloc(size
+1);
715 if (read_in_full(fd
, buf
, size
) != size
) {
724 if (sha1_stat
->valid
&&
725 !match_stat_data_racy(&the_index
, &sha1_stat
->stat
, &st
))
726 ; /* no content change, ss->sha1 still good */
727 else if (check_index
&&
728 (pos
= cache_name_pos(fname
, strlen(fname
))) >= 0 &&
729 !ce_stage(active_cache
[pos
]) &&
730 ce_uptodate(active_cache
[pos
]) &&
731 !would_convert_to_git(fname
))
732 hashcpy(sha1_stat
->sha1
, active_cache
[pos
]->sha1
);
734 hash_sha1_file(buf
, size
, "blob", sha1_stat
->sha1
);
735 fill_stat_data(&sha1_stat
->stat
, &st
);
736 sha1_stat
->valid
= 1;
742 if (skip_utf8_bom(&buf
, size
))
743 size
-= buf
- el
->filebuf
;
747 for (i
= 0; i
< size
; i
++) {
748 if (buf
[i
] == '\n') {
749 if (entry
!= buf
+ i
&& entry
[0] != '#') {
750 buf
[i
- (i
&& buf
[i
-1] == '\r')] = 0;
751 trim_trailing_spaces(entry
);
752 add_exclude(entry
, base
, baselen
, el
, lineno
);
761 int add_excludes_from_file_to_list(const char *fname
, const char *base
,
762 int baselen
, struct exclude_list
*el
,
765 return add_excludes(fname
, base
, baselen
, el
, check_index
, NULL
);
768 struct exclude_list
*add_exclude_list(struct dir_struct
*dir
,
769 int group_type
, const char *src
)
771 struct exclude_list
*el
;
772 struct exclude_list_group
*group
;
774 group
= &dir
->exclude_list_group
[group_type
];
775 ALLOC_GROW(group
->el
, group
->nr
+ 1, group
->alloc
);
776 el
= &group
->el
[group
->nr
++];
777 memset(el
, 0, sizeof(*el
));
783 * Used to set up core.excludesfile and .git/info/exclude lists.
785 static void add_excludes_from_file_1(struct dir_struct
*dir
, const char *fname
,
786 struct sha1_stat
*sha1_stat
)
788 struct exclude_list
*el
;
790 * catch setup_standard_excludes() that's called before
791 * dir->untracked is assigned. That function behaves
792 * differently when dir->untracked is non-NULL.
795 dir
->unmanaged_exclude_files
++;
796 el
= add_exclude_list(dir
, EXC_FILE
, fname
);
797 if (add_excludes(fname
, "", 0, el
, 0, sha1_stat
) < 0)
798 die("cannot use %s as an exclude file", fname
);
801 void add_excludes_from_file(struct dir_struct
*dir
, const char *fname
)
803 dir
->unmanaged_exclude_files
++; /* see validate_untracked_cache() */
804 add_excludes_from_file_1(dir
, fname
, NULL
);
807 int match_basename(const char *basename
, int basenamelen
,
808 const char *pattern
, int prefix
, int patternlen
,
811 if (prefix
== patternlen
) {
812 if (patternlen
== basenamelen
&&
813 !strncmp_icase(pattern
, basename
, basenamelen
))
815 } else if (flags
& EXC_FLAG_ENDSWITH
) {
816 /* "*literal" matching against "fooliteral" */
817 if (patternlen
- 1 <= basenamelen
&&
818 !strncmp_icase(pattern
+ 1,
819 basename
+ basenamelen
- (patternlen
- 1),
823 if (fnmatch_icase_mem(pattern
, patternlen
,
824 basename
, basenamelen
,
831 int match_pathname(const char *pathname
, int pathlen
,
832 const char *base
, int baselen
,
833 const char *pattern
, int prefix
, int patternlen
,
840 * match with FNM_PATHNAME; the pattern has base implicitly
843 if (*pattern
== '/') {
850 * baselen does not count the trailing slash. base[] may or
851 * may not end with a trailing slash though.
853 if (pathlen
< baselen
+ 1 ||
854 (baselen
&& pathname
[baselen
] != '/') ||
855 strncmp_icase(pathname
, base
, baselen
))
858 namelen
= baselen
? pathlen
- baselen
- 1 : pathlen
;
859 name
= pathname
+ pathlen
- namelen
;
863 * if the non-wildcard part is longer than the
864 * remaining pathname, surely it cannot match.
866 if (prefix
> namelen
)
869 if (strncmp_icase(pattern
, name
, prefix
))
872 patternlen
-= prefix
;
877 * If the whole pattern did not have a wildcard,
878 * then our prefix match is all we need; we
879 * do not need to call fnmatch at all.
881 if (!patternlen
&& !namelen
)
884 * This can happen when we ignore some exclude rules
885 * on directories in other to see if negative rules
891 * The pattern of interest is "/abc". On the first
892 * try, we should match path "abc" with this pattern
893 * in the "if" statement right above, but the caller
896 * On the second try with paths within "abc",
897 * e.g. "abc/xyz", we come here and try to match it
900 if (!patternlen
&& namelen
&& *name
== '/')
904 return fnmatch_icase_mem(pattern
, patternlen
,
910 * Return non-zero if pathname is a directory and an ancestor of the
911 * literal path in a (negative) pattern. This is used to keep
912 * descending in "foo" and "foo/bar" when the pattern is
913 * "!foo/bar/.gitignore". "foo/notbar" will not be descended however.
915 static int match_neg_path(const char *pathname
, int pathlen
, int *dtype
,
916 const char *base
, int baselen
,
917 const char *pattern
, int prefix
, int patternlen
,
920 assert((flags
& EXC_FLAG_NEGATIVE
) && !(flags
& EXC_FLAG_NODIR
));
922 if (*dtype
== DT_UNKNOWN
)
923 *dtype
= get_dtype(NULL
, pathname
, pathlen
);
924 if (*dtype
!= DT_DIR
)
927 if (*pattern
== '/') {
934 if (((pathlen
< baselen
&& base
[pathlen
] == '/') ||
935 pathlen
== baselen
) &&
936 !strncmp_icase(pathname
, base
, pathlen
))
938 pathname
+= baselen
+ 1;
939 pathlen
-= baselen
+ 1;
944 ((pathlen
< prefix
&& pattern
[pathlen
] == '/') &&
945 !strncmp_icase(pathname
, pattern
, pathlen
)))
952 * Scan the given exclude list in reverse to see whether pathname
953 * should be ignored. The first match (i.e. the last on the list), if
954 * any, determines the fate. Returns the exclude_list element which
955 * matched, or NULL for undecided.
957 static struct exclude
*last_exclude_matching_from_list(const char *pathname
,
959 const char *basename
,
961 struct exclude_list
*el
)
963 struct exclude
*exc
= NULL
; /* undecided */
964 int i
, matched_negative_path
= 0;
967 return NULL
; /* undefined */
969 for (i
= el
->nr
- 1; 0 <= i
; i
--) {
970 struct exclude
*x
= el
->excludes
[i
];
971 const char *exclude
= x
->pattern
;
972 int prefix
= x
->nowildcardlen
;
974 if (x
->flags
& EXC_FLAG_MUSTBEDIR
) {
975 if (*dtype
== DT_UNKNOWN
)
976 *dtype
= get_dtype(NULL
, pathname
, pathlen
);
977 if (*dtype
!= DT_DIR
)
981 if (x
->flags
& EXC_FLAG_NODIR
) {
982 if (match_basename(basename
,
983 pathlen
- (basename
- pathname
),
984 exclude
, prefix
, x
->patternlen
,
992 assert(x
->baselen
== 0 || x
->base
[x
->baselen
- 1] == '/');
993 if (match_pathname(pathname
, pathlen
,
994 x
->base
, x
->baselen
? x
->baselen
- 1 : 0,
995 exclude
, prefix
, x
->patternlen
, x
->flags
)) {
1000 if ((x
->flags
& EXC_FLAG_NEGATIVE
) && !matched_negative_path
&&
1001 match_neg_path(pathname
, pathlen
, dtype
, x
->base
,
1002 x
->baselen
? x
->baselen
- 1 : 0,
1003 exclude
, prefix
, x
->patternlen
, x
->flags
))
1004 matched_negative_path
= 1;
1007 !(exc
->flags
& EXC_FLAG_NEGATIVE
) &&
1008 !(exc
->flags
& EXC_FLAG_NODIR
) &&
1009 matched_negative_path
)
1015 * Scan the list and let the last match determine the fate.
1016 * Return 1 for exclude, 0 for include and -1 for undecided.
1018 int is_excluded_from_list(const char *pathname
,
1019 int pathlen
, const char *basename
, int *dtype
,
1020 struct exclude_list
*el
)
1022 struct exclude
*exclude
;
1023 exclude
= last_exclude_matching_from_list(pathname
, pathlen
, basename
, dtype
, el
);
1025 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1026 return -1; /* undecided */
1029 static struct exclude
*last_exclude_matching_from_lists(struct dir_struct
*dir
,
1030 const char *pathname
, int pathlen
, const char *basename
,
1034 struct exclude_list_group
*group
;
1035 struct exclude
*exclude
;
1036 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
1037 group
= &dir
->exclude_list_group
[i
];
1038 for (j
= group
->nr
- 1; j
>= 0; j
--) {
1039 exclude
= last_exclude_matching_from_list(
1040 pathname
, pathlen
, basename
, dtype_p
,
1050 * Loads the per-directory exclude list for the substring of base
1051 * which has a char length of baselen.
1053 static void prep_exclude(struct dir_struct
*dir
, const char *base
, int baselen
)
1055 struct exclude_list_group
*group
;
1056 struct exclude_list
*el
;
1057 struct exclude_stack
*stk
= NULL
;
1058 struct untracked_cache_dir
*untracked
;
1061 group
= &dir
->exclude_list_group
[EXC_DIRS
];
1064 * Pop the exclude lists from the EXCL_DIRS exclude_list_group
1065 * which originate from directories not in the prefix of the
1066 * path being checked.
1068 while ((stk
= dir
->exclude_stack
) != NULL
) {
1069 if (stk
->baselen
<= baselen
&&
1070 !strncmp(dir
->basebuf
.buf
, base
, stk
->baselen
))
1072 el
= &group
->el
[dir
->exclude_stack
->exclude_ix
];
1073 dir
->exclude_stack
= stk
->prev
;
1074 dir
->exclude
= NULL
;
1075 free((char *)el
->src
); /* see strbuf_detach() below */
1076 clear_exclude_list(el
);
1081 /* Skip traversing into sub directories if the parent is excluded */
1086 * Lazy initialization. All call sites currently just
1087 * memset(dir, 0, sizeof(*dir)) before use. Changing all of
1088 * them seems lots of work for little benefit.
1090 if (!dir
->basebuf
.buf
)
1091 strbuf_init(&dir
->basebuf
, PATH_MAX
);
1093 /* Read from the parent directories and push them down. */
1094 current
= stk
? stk
->baselen
: -1;
1095 strbuf_setlen(&dir
->basebuf
, current
< 0 ? 0 : current
);
1097 untracked
= stk
? stk
->ucd
: dir
->untracked
->root
;
1101 while (current
< baselen
) {
1103 struct sha1_stat sha1_stat
;
1105 stk
= xcalloc(1, sizeof(*stk
));
1110 cp
= strchr(base
+ current
+ 1, '/');
1112 die("oops in prep_exclude");
1115 lookup_untracked(dir
->untracked
, untracked
,
1117 cp
- base
- current
);
1119 stk
->prev
= dir
->exclude_stack
;
1120 stk
->baselen
= cp
- base
;
1121 stk
->exclude_ix
= group
->nr
;
1122 stk
->ucd
= untracked
;
1123 el
= add_exclude_list(dir
, EXC_DIRS
, NULL
);
1124 strbuf_add(&dir
->basebuf
, base
+ current
, stk
->baselen
- current
);
1125 assert(stk
->baselen
== dir
->basebuf
.len
);
1127 /* Abort if the directory is excluded */
1130 dir
->basebuf
.buf
[stk
->baselen
- 1] = 0;
1131 dir
->exclude
= last_exclude_matching_from_lists(dir
,
1132 dir
->basebuf
.buf
, stk
->baselen
- 1,
1133 dir
->basebuf
.buf
+ current
, &dt
);
1134 dir
->basebuf
.buf
[stk
->baselen
- 1] = '/';
1136 dir
->exclude
->flags
& EXC_FLAG_NEGATIVE
)
1137 dir
->exclude
= NULL
;
1139 dir
->exclude_stack
= stk
;
1144 /* Try to read per-directory file */
1145 hashclr(sha1_stat
.sha1
);
1146 sha1_stat
.valid
= 0;
1147 if (dir
->exclude_per_dir
&&
1149 * If we know that no files have been added in
1150 * this directory (i.e. valid_cached_dir() has
1151 * been executed and set untracked->valid) ..
1153 (!untracked
|| !untracked
->valid
||
1155 * .. and .gitignore does not exist before
1156 * (i.e. null exclude_sha1). Then we can skip
1157 * loading .gitignore, which would result in
1160 !is_null_sha1(untracked
->exclude_sha1
))) {
1162 * dir->basebuf gets reused by the traversal, but we
1163 * need fname to remain unchanged to ensure the src
1164 * member of each struct exclude correctly
1165 * back-references its source file. Other invocations
1166 * of add_exclude_list provide stable strings, so we
1167 * strbuf_detach() and free() here in the caller.
1169 struct strbuf sb
= STRBUF_INIT
;
1170 strbuf_addbuf(&sb
, &dir
->basebuf
);
1171 strbuf_addstr(&sb
, dir
->exclude_per_dir
);
1172 el
->src
= strbuf_detach(&sb
, NULL
);
1173 add_excludes(el
->src
, el
->src
, stk
->baselen
, el
, 1,
1174 untracked
? &sha1_stat
: NULL
);
1177 * NEEDSWORK: when untracked cache is enabled, prep_exclude()
1178 * will first be called in valid_cached_dir() then maybe many
1179 * times more in last_exclude_matching(). When the cache is
1180 * used, last_exclude_matching() will not be called and
1181 * reading .gitignore content will be a waste.
1183 * So when it's called by valid_cached_dir() and we can get
1184 * .gitignore SHA-1 from the index (i.e. .gitignore is not
1185 * modified on work tree), we could delay reading the
1186 * .gitignore content until we absolutely need it in
1187 * last_exclude_matching(). Be careful about ignore rule
1188 * order, though, if you do that.
1191 hashcmp(sha1_stat
.sha1
, untracked
->exclude_sha1
)) {
1192 invalidate_gitignore(dir
->untracked
, untracked
);
1193 hashcpy(untracked
->exclude_sha1
, sha1_stat
.sha1
);
1195 dir
->exclude_stack
= stk
;
1196 current
= stk
->baselen
;
1198 strbuf_setlen(&dir
->basebuf
, baselen
);
1202 * Loads the exclude lists for the directory containing pathname, then
1203 * scans all exclude lists to determine whether pathname is excluded.
1204 * Returns the exclude_list element which matched, or NULL for
1207 struct exclude
*last_exclude_matching(struct dir_struct
*dir
,
1208 const char *pathname
,
1211 int pathlen
= strlen(pathname
);
1212 const char *basename
= strrchr(pathname
, '/');
1213 basename
= (basename
) ? basename
+1 : pathname
;
1215 prep_exclude(dir
, pathname
, basename
-pathname
);
1218 return dir
->exclude
;
1220 return last_exclude_matching_from_lists(dir
, pathname
, pathlen
,
1225 * Loads the exclude lists for the directory containing pathname, then
1226 * scans all exclude lists to determine whether pathname is excluded.
1227 * Returns 1 if true, otherwise 0.
1229 int is_excluded(struct dir_struct
*dir
, const char *pathname
, int *dtype_p
)
1231 struct exclude
*exclude
=
1232 last_exclude_matching(dir
, pathname
, dtype_p
);
1234 return exclude
->flags
& EXC_FLAG_NEGATIVE
? 0 : 1;
1238 static struct dir_entry
*dir_entry_new(const char *pathname
, int len
)
1240 struct dir_entry
*ent
;
1242 ent
= xmalloc(sizeof(*ent
) + len
+ 1);
1244 memcpy(ent
->name
, pathname
, len
);
1249 static struct dir_entry
*dir_add_name(struct dir_struct
*dir
, const char *pathname
, int len
)
1251 if (cache_file_exists(pathname
, len
, ignore_case
))
1254 ALLOC_GROW(dir
->entries
, dir
->nr
+1, dir
->alloc
);
1255 return dir
->entries
[dir
->nr
++] = dir_entry_new(pathname
, len
);
1258 struct dir_entry
*dir_add_ignored(struct dir_struct
*dir
, const char *pathname
, int len
)
1260 if (!cache_name_is_other(pathname
, len
))
1263 ALLOC_GROW(dir
->ignored
, dir
->ignored_nr
+1, dir
->ignored_alloc
);
1264 return dir
->ignored
[dir
->ignored_nr
++] = dir_entry_new(pathname
, len
);
1268 index_nonexistent
= 0,
1274 * Do not use the alphabetically sorted index to look up
1275 * the directory name; instead, use the case insensitive
1278 static enum exist_status
directory_exists_in_index_icase(const char *dirname
, int len
)
1280 struct cache_entry
*ce
;
1282 if (cache_dir_exists(dirname
, len
))
1283 return index_directory
;
1285 ce
= cache_file_exists(dirname
, len
, ignore_case
);
1286 if (ce
&& S_ISGITLINK(ce
->ce_mode
))
1287 return index_gitdir
;
1289 return index_nonexistent
;
1293 * The index sorts alphabetically by entry name, which
1294 * means that a gitlink sorts as '\0' at the end, while
1295 * a directory (which is defined not as an entry, but as
1296 * the files it contains) will sort with the '/' at the
1299 static enum exist_status
directory_exists_in_index(const char *dirname
, int len
)
1304 return directory_exists_in_index_icase(dirname
, len
);
1306 pos
= cache_name_pos(dirname
, len
);
1309 while (pos
< active_nr
) {
1310 const struct cache_entry
*ce
= active_cache
[pos
++];
1311 unsigned char endchar
;
1313 if (strncmp(ce
->name
, dirname
, len
))
1315 endchar
= ce
->name
[len
];
1319 return index_directory
;
1320 if (!endchar
&& S_ISGITLINK(ce
->ce_mode
))
1321 return index_gitdir
;
1323 return index_nonexistent
;
1327 * When we find a directory when traversing the filesystem, we
1328 * have three distinct cases:
1331 * - see it as a directory
1334 * and which one we choose depends on a combination of existing
1335 * git index contents and the flags passed into the directory
1336 * traversal routine.
1338 * Case 1: If we *already* have entries in the index under that
1339 * directory name, we always recurse into the directory to see
1342 * Case 2: If we *already* have that directory name as a gitlink,
1343 * we always continue to see it as a gitlink, regardless of whether
1344 * there is an actual git directory there or not (it might not
1345 * be checked out as a subproject!)
1347 * Case 3: if we didn't have it in the index previously, we
1348 * have a few sub-cases:
1350 * (a) if "show_other_directories" is true, we show it as
1351 * just a directory, unless "hide_empty_directories" is
1352 * also true, in which case we need to check if it contains any
1353 * untracked and / or ignored files.
1354 * (b) if it looks like a git directory, and we don't have
1355 * 'no_gitlinks' set we treat it as a gitlink, and show it
1357 * (c) otherwise, we recurse into it.
1359 static enum path_treatment
treat_directory(struct dir_struct
*dir
,
1360 struct untracked_cache_dir
*untracked
,
1361 const char *dirname
, int len
, int baselen
, int exclude
,
1362 const struct path_simplify
*simplify
)
1364 /* The "len-1" is to strip the final '/' */
1365 switch (directory_exists_in_index(dirname
, len
-1)) {
1366 case index_directory
:
1367 return path_recurse
;
1372 case index_nonexistent
:
1373 if (dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
)
1375 if (!(dir
->flags
& DIR_NO_GITLINKS
)) {
1376 unsigned char sha1
[20];
1377 if (resolve_gitlink_ref(dirname
, "HEAD", sha1
) == 0)
1378 return path_untracked
;
1380 return path_recurse
;
1383 /* This is the "show_other_directories" case */
1385 if (!(dir
->flags
& DIR_HIDE_EMPTY_DIRECTORIES
))
1386 return exclude
? path_excluded
: path_untracked
;
1388 untracked
= lookup_untracked(dir
->untracked
, untracked
,
1389 dirname
+ baselen
, len
- baselen
);
1390 return read_directory_recursive(dir
, dirname
, len
,
1391 untracked
, 1, simplify
);
1395 * This is an inexact early pruning of any recursive directory
1396 * reading - if the path cannot possibly be in the pathspec,
1397 * return true, and we'll skip it early.
1399 static int simplify_away(const char *path
, int pathlen
, const struct path_simplify
*simplify
)
1403 const char *match
= simplify
->path
;
1404 int len
= simplify
->len
;
1410 if (!memcmp(path
, match
, len
))
1420 * This function tells us whether an excluded path matches a
1421 * list of "interesting" pathspecs. That is, whether a path matched
1422 * by any of the pathspecs could possibly be ignored by excluding
1423 * the specified path. This can happen if:
1425 * 1. the path is mentioned explicitly in the pathspec
1427 * 2. the path is a directory prefix of some element in the
1430 static int exclude_matches_pathspec(const char *path
, int len
,
1431 const struct path_simplify
*simplify
)
1434 for (; simplify
->path
; simplify
++) {
1435 if (len
== simplify
->len
1436 && !memcmp(path
, simplify
->path
, len
))
1438 if (len
< simplify
->len
1439 && simplify
->path
[len
] == '/'
1440 && !memcmp(path
, simplify
->path
, len
))
1447 static int get_index_dtype(const char *path
, int len
)
1450 const struct cache_entry
*ce
;
1452 ce
= cache_file_exists(path
, len
, 0);
1454 if (!ce_uptodate(ce
))
1456 if (S_ISGITLINK(ce
->ce_mode
))
1459 * Nobody actually cares about the
1460 * difference between DT_LNK and DT_REG
1465 /* Try to look it up as a directory */
1466 pos
= cache_name_pos(path
, len
);
1470 while (pos
< active_nr
) {
1471 ce
= active_cache
[pos
++];
1472 if (strncmp(ce
->name
, path
, len
))
1474 if (ce
->name
[len
] > '/')
1476 if (ce
->name
[len
] < '/')
1478 if (!ce_uptodate(ce
))
1479 break; /* continue? */
1485 static int get_dtype(struct dirent
*de
, const char *path
, int len
)
1487 int dtype
= de
? DTYPE(de
) : DT_UNKNOWN
;
1490 if (dtype
!= DT_UNKNOWN
)
1492 dtype
= get_index_dtype(path
, len
);
1493 if (dtype
!= DT_UNKNOWN
)
1495 if (lstat(path
, &st
))
1497 if (S_ISREG(st
.st_mode
))
1499 if (S_ISDIR(st
.st_mode
))
1501 if (S_ISLNK(st
.st_mode
))
1506 static enum path_treatment
treat_one_path(struct dir_struct
*dir
,
1507 struct untracked_cache_dir
*untracked
,
1508 struct strbuf
*path
,
1510 const struct path_simplify
*simplify
,
1511 int dtype
, struct dirent
*de
)
1514 int has_path_in_index
= !!cache_file_exists(path
->buf
, path
->len
, ignore_case
);
1516 if (dtype
== DT_UNKNOWN
)
1517 dtype
= get_dtype(de
, path
->buf
, path
->len
);
1519 /* Always exclude indexed files */
1520 if (dtype
!= DT_DIR
&& has_path_in_index
)
1524 * When we are looking at a directory P in the working tree,
1525 * there are three cases:
1527 * (1) P exists in the index. Everything inside the directory P in
1528 * the working tree needs to go when P is checked out from the
1531 * (2) P does not exist in the index, but there is P/Q in the index.
1532 * We know P will stay a directory when we check out the contents
1533 * of the index, but we do not know yet if there is a directory
1534 * P/Q in the working tree to be killed, so we need to recurse.
1536 * (3) P does not exist in the index, and there is no P/Q in the index
1537 * to require P to be a directory, either. Only in this case, we
1538 * know that everything inside P will not be killed without
1541 if ((dir
->flags
& DIR_COLLECT_KILLED_ONLY
) &&
1542 (dtype
== DT_DIR
) &&
1543 !has_path_in_index
&&
1544 (directory_exists_in_index(path
->buf
, path
->len
) == index_nonexistent
))
1547 exclude
= is_excluded(dir
, path
->buf
, &dtype
);
1550 * Excluded? If we don't explicitly want to show
1551 * ignored files, ignore it
1553 if (exclude
&& !(dir
->flags
& (DIR_SHOW_IGNORED
|DIR_SHOW_IGNORED_TOO
)))
1554 return path_excluded
;
1560 strbuf_addch(path
, '/');
1561 return treat_directory(dir
, untracked
, path
->buf
, path
->len
,
1562 baselen
, exclude
, simplify
);
1565 return exclude
? path_excluded
: path_untracked
;
1569 static enum path_treatment
treat_path_fast(struct dir_struct
*dir
,
1570 struct untracked_cache_dir
*untracked
,
1571 struct cached_dir
*cdir
,
1572 struct strbuf
*path
,
1574 const struct path_simplify
*simplify
)
1576 strbuf_setlen(path
, baselen
);
1578 strbuf_addstr(path
, cdir
->file
);
1579 return path_untracked
;
1581 strbuf_addstr(path
, cdir
->ucd
->name
);
1582 /* treat_one_path() does this before it calls treat_directory() */
1583 strbuf_complete(path
, '/');
1584 if (cdir
->ucd
->check_only
)
1586 * check_only is set as a result of treat_directory() getting
1587 * to its bottom. Verify again the same set of directories
1588 * with check_only set.
1590 return read_directory_recursive(dir
, path
->buf
, path
->len
,
1591 cdir
->ucd
, 1, simplify
);
1593 * We get path_recurse in the first run when
1594 * directory_exists_in_index() returns index_nonexistent. We
1595 * are sure that new changes in the index does not impact the
1596 * outcome. Return now.
1598 return path_recurse
;
1601 static enum path_treatment
treat_path(struct dir_struct
*dir
,
1602 struct untracked_cache_dir
*untracked
,
1603 struct cached_dir
*cdir
,
1604 struct strbuf
*path
,
1606 const struct path_simplify
*simplify
)
1609 struct dirent
*de
= cdir
->de
;
1612 return treat_path_fast(dir
, untracked
, cdir
, path
,
1614 if (is_dot_or_dotdot(de
->d_name
) || !strcmp(de
->d_name
, ".git"))
1616 strbuf_setlen(path
, baselen
);
1617 strbuf_addstr(path
, de
->d_name
);
1618 if (simplify_away(path
->buf
, path
->len
, simplify
))
1622 return treat_one_path(dir
, untracked
, path
, baselen
, simplify
, dtype
, de
);
1625 static void add_untracked(struct untracked_cache_dir
*dir
, const char *name
)
1629 ALLOC_GROW(dir
->untracked
, dir
->untracked_nr
+ 1,
1630 dir
->untracked_alloc
);
1631 dir
->untracked
[dir
->untracked_nr
++] = xstrdup(name
);
1634 static int valid_cached_dir(struct dir_struct
*dir
,
1635 struct untracked_cache_dir
*untracked
,
1636 struct strbuf
*path
,
1644 if (stat(path
->len
? path
->buf
: ".", &st
)) {
1645 invalidate_directory(dir
->untracked
, untracked
);
1646 memset(&untracked
->stat_data
, 0, sizeof(untracked
->stat_data
));
1649 if (!untracked
->valid
||
1650 match_stat_data_racy(&the_index
, &untracked
->stat_data
, &st
)) {
1651 if (untracked
->valid
)
1652 invalidate_directory(dir
->untracked
, untracked
);
1653 fill_stat_data(&untracked
->stat_data
, &st
);
1657 if (untracked
->check_only
!= !!check_only
) {
1658 invalidate_directory(dir
->untracked
, untracked
);
1663 * prep_exclude will be called eventually on this directory,
1664 * but it's called much later in last_exclude_matching(). We
1665 * need it now to determine the validity of the cache for this
1666 * path. The next calls will be nearly no-op, the way
1667 * prep_exclude() is designed.
1669 if (path
->len
&& path
->buf
[path
->len
- 1] != '/') {
1670 strbuf_addch(path
, '/');
1671 prep_exclude(dir
, path
->buf
, path
->len
);
1672 strbuf_setlen(path
, path
->len
- 1);
1674 prep_exclude(dir
, path
->buf
, path
->len
);
1676 /* hopefully prep_exclude() haven't invalidated this entry... */
1677 return untracked
->valid
;
1680 static int open_cached_dir(struct cached_dir
*cdir
,
1681 struct dir_struct
*dir
,
1682 struct untracked_cache_dir
*untracked
,
1683 struct strbuf
*path
,
1686 memset(cdir
, 0, sizeof(*cdir
));
1687 cdir
->untracked
= untracked
;
1688 if (valid_cached_dir(dir
, untracked
, path
, check_only
))
1690 cdir
->fdir
= opendir(path
->len
? path
->buf
: ".");
1692 dir
->untracked
->dir_opened
++;
1698 static int read_cached_dir(struct cached_dir
*cdir
)
1701 cdir
->de
= readdir(cdir
->fdir
);
1706 while (cdir
->nr_dirs
< cdir
->untracked
->dirs_nr
) {
1707 struct untracked_cache_dir
*d
= cdir
->untracked
->dirs
[cdir
->nr_dirs
];
1717 if (cdir
->nr_files
< cdir
->untracked
->untracked_nr
) {
1718 struct untracked_cache_dir
*d
= cdir
->untracked
;
1719 cdir
->file
= d
->untracked
[cdir
->nr_files
++];
1725 static void close_cached_dir(struct cached_dir
*cdir
)
1728 closedir(cdir
->fdir
);
1730 * We have gone through this directory and found no untracked
1731 * entries. Mark it valid.
1733 if (cdir
->untracked
) {
1734 cdir
->untracked
->valid
= 1;
1735 cdir
->untracked
->recurse
= 1;
1740 * Read a directory tree. We currently ignore anything but
1741 * directories, regular files and symlinks. That's because git
1742 * doesn't handle them at all yet. Maybe that will change some
1745 * Also, we ignore the name ".git" (even if it is not a directory).
1746 * That likely will not change.
1748 * Returns the most significant path_treatment value encountered in the scan.
1750 static enum path_treatment
read_directory_recursive(struct dir_struct
*dir
,
1751 const char *base
, int baselen
,
1752 struct untracked_cache_dir
*untracked
, int check_only
,
1753 const struct path_simplify
*simplify
)
1755 struct cached_dir cdir
;
1756 enum path_treatment state
, subdir_state
, dir_state
= path_none
;
1757 struct strbuf path
= STRBUF_INIT
;
1759 strbuf_add(&path
, base
, baselen
);
1761 if (open_cached_dir(&cdir
, dir
, untracked
, &path
, check_only
))
1765 untracked
->check_only
= !!check_only
;
1767 while (!read_cached_dir(&cdir
)) {
1768 /* check how the file or directory should be treated */
1769 state
= treat_path(dir
, untracked
, &cdir
, &path
, baselen
, simplify
);
1771 if (state
> dir_state
)
1774 /* recurse into subdir if instructed by treat_path */
1775 if (state
== path_recurse
) {
1776 struct untracked_cache_dir
*ud
;
1777 ud
= lookup_untracked(dir
->untracked
, untracked
,
1779 path
.len
- baselen
);
1781 read_directory_recursive(dir
, path
.buf
, path
.len
,
1782 ud
, check_only
, simplify
);
1783 if (subdir_state
> dir_state
)
1784 dir_state
= subdir_state
;
1788 /* abort early if maximum state has been reached */
1789 if (dir_state
== path_untracked
) {
1791 add_untracked(untracked
, path
.buf
+ baselen
);
1794 /* skip the dir_add_* part */
1798 /* add the path to the appropriate result list */
1801 if (dir
->flags
& DIR_SHOW_IGNORED
)
1802 dir_add_name(dir
, path
.buf
, path
.len
);
1803 else if ((dir
->flags
& DIR_SHOW_IGNORED_TOO
) ||
1804 ((dir
->flags
& DIR_COLLECT_IGNORED
) &&
1805 exclude_matches_pathspec(path
.buf
, path
.len
,
1807 dir_add_ignored(dir
, path
.buf
, path
.len
);
1810 case path_untracked
:
1811 if (dir
->flags
& DIR_SHOW_IGNORED
)
1813 dir_add_name(dir
, path
.buf
, path
.len
);
1815 add_untracked(untracked
, path
.buf
+ baselen
);
1822 close_cached_dir(&cdir
);
1824 strbuf_release(&path
);
1829 static int cmp_name(const void *p1
, const void *p2
)
1831 const struct dir_entry
*e1
= *(const struct dir_entry
**)p1
;
1832 const struct dir_entry
*e2
= *(const struct dir_entry
**)p2
;
1834 return name_compare(e1
->name
, e1
->len
, e2
->name
, e2
->len
);
1837 static struct path_simplify
*create_simplify(const char **pathspec
)
1840 struct path_simplify
*simplify
= NULL
;
1845 for (nr
= 0 ; ; nr
++) {
1847 ALLOC_GROW(simplify
, nr
+ 1, alloc
);
1848 match
= *pathspec
++;
1851 simplify
[nr
].path
= match
;
1852 simplify
[nr
].len
= simple_length(match
);
1854 simplify
[nr
].path
= NULL
;
1855 simplify
[nr
].len
= 0;
1859 static void free_simplify(struct path_simplify
*simplify
)
1864 static int treat_leading_path(struct dir_struct
*dir
,
1865 const char *path
, int len
,
1866 const struct path_simplify
*simplify
)
1868 struct strbuf sb
= STRBUF_INIT
;
1869 int baselen
, rc
= 0;
1871 int old_flags
= dir
->flags
;
1873 while (len
&& path
[len
- 1] == '/')
1878 dir
->flags
&= ~DIR_SHOW_OTHER_DIRECTORIES
;
1880 cp
= path
+ baselen
+ !!baselen
;
1881 cp
= memchr(cp
, '/', path
+ len
- cp
);
1885 baselen
= cp
- path
;
1886 strbuf_setlen(&sb
, 0);
1887 strbuf_add(&sb
, path
, baselen
);
1888 if (!is_directory(sb
.buf
))
1890 if (simplify_away(sb
.buf
, sb
.len
, simplify
))
1892 if (treat_one_path(dir
, NULL
, &sb
, baselen
, simplify
,
1893 DT_DIR
, NULL
) == path_none
)
1894 break; /* do not recurse into it */
1895 if (len
<= baselen
) {
1897 break; /* finished checking */
1900 strbuf_release(&sb
);
1901 dir
->flags
= old_flags
;
1905 static const char *get_ident_string(void)
1907 static struct strbuf sb
= STRBUF_INIT
;
1912 if (uname(&uts
) < 0)
1913 die_errno(_("failed to get kernel name and information"));
1914 strbuf_addf(&sb
, "Location %s, system %s %s %s", get_git_work_tree(),
1915 uts
.sysname
, uts
.release
, uts
.version
);
1919 static int ident_in_untracked(const struct untracked_cache
*uc
)
1921 const char *end
= uc
->ident
.buf
+ uc
->ident
.len
;
1922 const char *p
= uc
->ident
.buf
;
1924 for (p
= uc
->ident
.buf
; p
< end
; p
+= strlen(p
) + 1)
1925 if (!strcmp(p
, get_ident_string()))
1930 void add_untracked_ident(struct untracked_cache
*uc
)
1932 if (ident_in_untracked(uc
))
1934 strbuf_addstr(&uc
->ident
, get_ident_string());
1935 /* this strbuf contains a list of strings, save NUL too */
1936 strbuf_addch(&uc
->ident
, 0);
1939 static struct untracked_cache_dir
*validate_untracked_cache(struct dir_struct
*dir
,
1941 const struct pathspec
*pathspec
)
1943 struct untracked_cache_dir
*root
;
1945 if (!dir
->untracked
|| getenv("GIT_DISABLE_UNTRACKED_CACHE"))
1949 * We only support $GIT_DIR/info/exclude and core.excludesfile
1950 * as the global ignore rule files. Any other additions
1951 * (e.g. from command line) invalidate the cache. This
1952 * condition also catches running setup_standard_excludes()
1953 * before setting dir->untracked!
1955 if (dir
->unmanaged_exclude_files
)
1959 * Optimize for the main use case only: whole-tree git
1960 * status. More work involved in treat_leading_path() if we
1961 * use cache on just a subset of the worktree. pathspec
1962 * support could make the matter even worse.
1964 if (base_len
|| (pathspec
&& pathspec
->nr
))
1967 /* Different set of flags may produce different results */
1968 if (dir
->flags
!= dir
->untracked
->dir_flags
||
1970 * See treat_directory(), case index_nonexistent. Without
1971 * this flag, we may need to also cache .git file content
1972 * for the resolve_gitlink_ref() call, which we don't.
1974 !(dir
->flags
& DIR_SHOW_OTHER_DIRECTORIES
) ||
1975 /* We don't support collecting ignore files */
1976 (dir
->flags
& (DIR_SHOW_IGNORED
| DIR_SHOW_IGNORED_TOO
|
1977 DIR_COLLECT_IGNORED
)))
1981 * If we use .gitignore in the cache and now you change it to
1982 * .gitexclude, everything will go wrong.
1984 if (dir
->exclude_per_dir
!= dir
->untracked
->exclude_per_dir
&&
1985 strcmp(dir
->exclude_per_dir
, dir
->untracked
->exclude_per_dir
))
1989 * EXC_CMDL is not considered in the cache. If people set it,
1992 if (dir
->exclude_list_group
[EXC_CMDL
].nr
)
1995 if (!ident_in_untracked(dir
->untracked
)) {
1996 warning(_("Untracked cache is disabled on this system."));
2000 if (!dir
->untracked
->root
) {
2001 const int len
= sizeof(*dir
->untracked
->root
);
2002 dir
->untracked
->root
= xmalloc(len
);
2003 memset(dir
->untracked
->root
, 0, len
);
2006 /* Validate $GIT_DIR/info/exclude and core.excludesfile */
2007 root
= dir
->untracked
->root
;
2008 if (hashcmp(dir
->ss_info_exclude
.sha1
,
2009 dir
->untracked
->ss_info_exclude
.sha1
)) {
2010 invalidate_gitignore(dir
->untracked
, root
);
2011 dir
->untracked
->ss_info_exclude
= dir
->ss_info_exclude
;
2013 if (hashcmp(dir
->ss_excludes_file
.sha1
,
2014 dir
->untracked
->ss_excludes_file
.sha1
)) {
2015 invalidate_gitignore(dir
->untracked
, root
);
2016 dir
->untracked
->ss_excludes_file
= dir
->ss_excludes_file
;
2019 /* Make sure this directory is not dropped out at saving phase */
2024 int read_directory(struct dir_struct
*dir
, const char *path
, int len
, const struct pathspec
*pathspec
)
2026 struct path_simplify
*simplify
;
2027 struct untracked_cache_dir
*untracked
;
2030 * Check out create_simplify()
2033 GUARD_PATHSPEC(pathspec
,
2041 if (has_symlink_leading_path(path
, len
))
2045 * exclude patterns are treated like positive ones in
2046 * create_simplify. Usually exclude patterns should be a
2047 * subset of positive ones, which has no impacts on
2048 * create_simplify().
2050 simplify
= create_simplify(pathspec
? pathspec
->_raw
: NULL
);
2051 untracked
= validate_untracked_cache(dir
, len
, pathspec
);
2054 * make sure untracked cache code path is disabled,
2055 * e.g. prep_exclude()
2057 dir
->untracked
= NULL
;
2058 if (!len
|| treat_leading_path(dir
, path
, len
, simplify
))
2059 read_directory_recursive(dir
, path
, len
, untracked
, 0, simplify
);
2060 free_simplify(simplify
);
2061 qsort(dir
->entries
, dir
->nr
, sizeof(struct dir_entry
*), cmp_name
);
2062 qsort(dir
->ignored
, dir
->ignored_nr
, sizeof(struct dir_entry
*), cmp_name
);
2063 if (dir
->untracked
) {
2064 static struct trace_key trace_untracked_stats
= TRACE_KEY_INIT(UNTRACKED_STATS
);
2065 trace_printf_key(&trace_untracked_stats
,
2066 "node creation: %u\n"
2067 "gitignore invalidation: %u\n"
2068 "directory invalidation: %u\n"
2070 dir
->untracked
->dir_created
,
2071 dir
->untracked
->gitignore_invalidated
,
2072 dir
->untracked
->dir_invalidated
,
2073 dir
->untracked
->dir_opened
);
2074 if (dir
->untracked
== the_index
.untracked
&&
2075 (dir
->untracked
->dir_opened
||
2076 dir
->untracked
->gitignore_invalidated
||
2077 dir
->untracked
->dir_invalidated
))
2078 the_index
.cache_changed
|= UNTRACKED_CHANGED
;
2079 if (dir
->untracked
!= the_index
.untracked
) {
2080 free(dir
->untracked
);
2081 dir
->untracked
= NULL
;
2087 int file_exists(const char *f
)
2090 return lstat(f
, &sb
) == 0;
2093 static int cmp_icase(char a
, char b
)
2098 return toupper(a
) - toupper(b
);
2103 * Given two normalized paths (a trailing slash is ok), if subdir is
2104 * outside dir, return -1. Otherwise return the offset in subdir that
2105 * can be used as relative path to dir.
2107 int dir_inside_of(const char *subdir
, const char *dir
)
2111 assert(dir
&& subdir
&& *dir
&& *subdir
);
2113 while (*dir
&& *subdir
&& !cmp_icase(*dir
, *subdir
)) {
2119 /* hel[p]/me vs hel[l]/yeah */
2120 if (*dir
&& *subdir
)
2124 return !*dir
? offset
: -1; /* same dir */
2126 /* foo/[b]ar vs foo/[] */
2127 if (is_dir_sep(dir
[-1]))
2128 return is_dir_sep(subdir
[-1]) ? offset
: -1;
2130 /* foo[/]bar vs foo[] */
2131 return is_dir_sep(*subdir
) ? offset
+ 1 : -1;
2134 int is_inside_dir(const char *dir
)
2143 rc
= (dir_inside_of(cwd
, dir
) >= 0);
2148 int is_empty_dir(const char *path
)
2150 DIR *dir
= opendir(path
);
2157 while ((e
= readdir(dir
)) != NULL
)
2158 if (!is_dot_or_dotdot(e
->d_name
)) {
2167 static int remove_dir_recurse(struct strbuf
*path
, int flag
, int *kept_up
)
2171 int ret
= 0, original_len
= path
->len
, len
, kept_down
= 0;
2172 int only_empty
= (flag
& REMOVE_DIR_EMPTY_ONLY
);
2173 int keep_toplevel
= (flag
& REMOVE_DIR_KEEP_TOPLEVEL
);
2174 unsigned char submodule_head
[20];
2176 if ((flag
& REMOVE_DIR_KEEP_NESTED_GIT
) &&
2177 !resolve_gitlink_ref(path
->buf
, "HEAD", submodule_head
)) {
2178 /* Do not descend and nuke a nested git work tree. */
2184 flag
&= ~REMOVE_DIR_KEEP_TOPLEVEL
;
2185 dir
= opendir(path
->buf
);
2187 if (errno
== ENOENT
)
2188 return keep_toplevel
? -1 : 0;
2189 else if (errno
== EACCES
&& !keep_toplevel
)
2191 * An empty dir could be removable even if it
2194 return rmdir(path
->buf
);
2198 strbuf_complete(path
, '/');
2201 while ((e
= readdir(dir
)) != NULL
) {
2203 if (is_dot_or_dotdot(e
->d_name
))
2206 strbuf_setlen(path
, len
);
2207 strbuf_addstr(path
, e
->d_name
);
2208 if (lstat(path
->buf
, &st
)) {
2209 if (errno
== ENOENT
)
2211 * file disappeared, which is what we
2216 } else if (S_ISDIR(st
.st_mode
)) {
2217 if (!remove_dir_recurse(path
, flag
, &kept_down
))
2218 continue; /* happy */
2219 } else if (!only_empty
&&
2220 (!unlink(path
->buf
) || errno
== ENOENT
)) {
2221 continue; /* happy, too */
2224 /* path too long, stat fails, or non-directory still exists */
2230 strbuf_setlen(path
, original_len
);
2231 if (!ret
&& !keep_toplevel
&& !kept_down
)
2232 ret
= (!rmdir(path
->buf
) || errno
== ENOENT
) ? 0 : -1;
2235 * report the uplevel that it is not an error that we
2236 * did not rmdir() our directory.
2242 int remove_dir_recursively(struct strbuf
*path
, int flag
)
2244 return remove_dir_recurse(path
, flag
, NULL
);
2247 static GIT_PATH_FUNC(git_path_info_exclude
, "info/exclude")
2249 void setup_standard_excludes(struct dir_struct
*dir
)
2253 dir
->exclude_per_dir
= ".gitignore";
2255 /* core.excludefile defaulting to $XDG_HOME/git/ignore */
2257 excludes_file
= xdg_config_home("ignore");
2258 if (excludes_file
&& !access_or_warn(excludes_file
, R_OK
, 0))
2259 add_excludes_from_file_1(dir
, excludes_file
,
2260 dir
->untracked
? &dir
->ss_excludes_file
: NULL
);
2262 /* per repository user preference */
2263 path
= git_path_info_exclude();
2264 if (!access_or_warn(path
, R_OK
, 0))
2265 add_excludes_from_file_1(dir
, path
,
2266 dir
->untracked
? &dir
->ss_info_exclude
: NULL
);
2269 int remove_path(const char *name
)
2273 if (unlink(name
) && errno
!= ENOENT
&& errno
!= ENOTDIR
)
2276 slash
= strrchr(name
, '/');
2278 char *dirs
= xstrdup(name
);
2279 slash
= dirs
+ (slash
- name
);
2282 } while (rmdir(dirs
) == 0 && (slash
= strrchr(dirs
, '/')));
2289 * Frees memory within dir which was allocated for exclude lists and
2290 * the exclude_stack. Does not free dir itself.
2292 void clear_directory(struct dir_struct
*dir
)
2295 struct exclude_list_group
*group
;
2296 struct exclude_list
*el
;
2297 struct exclude_stack
*stk
;
2299 for (i
= EXC_CMDL
; i
<= EXC_FILE
; i
++) {
2300 group
= &dir
->exclude_list_group
[i
];
2301 for (j
= 0; j
< group
->nr
; j
++) {
2304 free((char *)el
->src
);
2305 clear_exclude_list(el
);
2310 stk
= dir
->exclude_stack
;
2312 struct exclude_stack
*prev
= stk
->prev
;
2316 strbuf_release(&dir
->basebuf
);
2319 struct ondisk_untracked_cache
{
2320 struct stat_data info_exclude_stat
;
2321 struct stat_data excludes_file_stat
;
2323 unsigned char info_exclude_sha1
[20];
2324 unsigned char excludes_file_sha1
[20];
2325 char exclude_per_dir
[FLEX_ARRAY
];
2328 #define ouc_size(len) (offsetof(struct ondisk_untracked_cache, exclude_per_dir) + len + 1)
2331 int index
; /* number of written untracked_cache_dir */
2332 struct ewah_bitmap
*check_only
; /* from untracked_cache_dir */
2333 struct ewah_bitmap
*valid
; /* from untracked_cache_dir */
2334 struct ewah_bitmap
*sha1_valid
; /* set if exclude_sha1 is not null */
2336 struct strbuf sb_stat
;
2337 struct strbuf sb_sha1
;
2340 static void stat_data_to_disk(struct stat_data
*to
, const struct stat_data
*from
)
2342 to
->sd_ctime
.sec
= htonl(from
->sd_ctime
.sec
);
2343 to
->sd_ctime
.nsec
= htonl(from
->sd_ctime
.nsec
);
2344 to
->sd_mtime
.sec
= htonl(from
->sd_mtime
.sec
);
2345 to
->sd_mtime
.nsec
= htonl(from
->sd_mtime
.nsec
);
2346 to
->sd_dev
= htonl(from
->sd_dev
);
2347 to
->sd_ino
= htonl(from
->sd_ino
);
2348 to
->sd_uid
= htonl(from
->sd_uid
);
2349 to
->sd_gid
= htonl(from
->sd_gid
);
2350 to
->sd_size
= htonl(from
->sd_size
);
2353 static void write_one_dir(struct untracked_cache_dir
*untracked
,
2354 struct write_data
*wd
)
2356 struct stat_data stat_data
;
2357 struct strbuf
*out
= &wd
->out
;
2358 unsigned char intbuf
[16];
2359 unsigned int intlen
, value
;
2360 int i
= wd
->index
++;
2363 * untracked_nr should be reset whenever valid is clear, but
2366 if (!untracked
->valid
) {
2367 untracked
->untracked_nr
= 0;
2368 untracked
->check_only
= 0;
2371 if (untracked
->check_only
)
2372 ewah_set(wd
->check_only
, i
);
2373 if (untracked
->valid
) {
2374 ewah_set(wd
->valid
, i
);
2375 stat_data_to_disk(&stat_data
, &untracked
->stat_data
);
2376 strbuf_add(&wd
->sb_stat
, &stat_data
, sizeof(stat_data
));
2378 if (!is_null_sha1(untracked
->exclude_sha1
)) {
2379 ewah_set(wd
->sha1_valid
, i
);
2380 strbuf_add(&wd
->sb_sha1
, untracked
->exclude_sha1
, 20);
2383 intlen
= encode_varint(untracked
->untracked_nr
, intbuf
);
2384 strbuf_add(out
, intbuf
, intlen
);
2386 /* skip non-recurse directories */
2387 for (i
= 0, value
= 0; i
< untracked
->dirs_nr
; i
++)
2388 if (untracked
->dirs
[i
]->recurse
)
2390 intlen
= encode_varint(value
, intbuf
);
2391 strbuf_add(out
, intbuf
, intlen
);
2393 strbuf_add(out
, untracked
->name
, strlen(untracked
->name
) + 1);
2395 for (i
= 0; i
< untracked
->untracked_nr
; i
++)
2396 strbuf_add(out
, untracked
->untracked
[i
],
2397 strlen(untracked
->untracked
[i
]) + 1);
2399 for (i
= 0; i
< untracked
->dirs_nr
; i
++)
2400 if (untracked
->dirs
[i
]->recurse
)
2401 write_one_dir(untracked
->dirs
[i
], wd
);
2404 void write_untracked_extension(struct strbuf
*out
, struct untracked_cache
*untracked
)
2406 struct ondisk_untracked_cache
*ouc
;
2407 struct write_data wd
;
2408 unsigned char varbuf
[16];
2409 int len
= 0, varint_len
;
2410 if (untracked
->exclude_per_dir
)
2411 len
= strlen(untracked
->exclude_per_dir
);
2412 ouc
= xmalloc(sizeof(*ouc
) + len
+ 1);
2413 stat_data_to_disk(&ouc
->info_exclude_stat
, &untracked
->ss_info_exclude
.stat
);
2414 stat_data_to_disk(&ouc
->excludes_file_stat
, &untracked
->ss_excludes_file
.stat
);
2415 hashcpy(ouc
->info_exclude_sha1
, untracked
->ss_info_exclude
.sha1
);
2416 hashcpy(ouc
->excludes_file_sha1
, untracked
->ss_excludes_file
.sha1
);
2417 ouc
->dir_flags
= htonl(untracked
->dir_flags
);
2418 memcpy(ouc
->exclude_per_dir
, untracked
->exclude_per_dir
, len
+ 1);
2420 varint_len
= encode_varint(untracked
->ident
.len
, varbuf
);
2421 strbuf_add(out
, varbuf
, varint_len
);
2422 strbuf_add(out
, untracked
->ident
.buf
, untracked
->ident
.len
);
2424 strbuf_add(out
, ouc
, ouc_size(len
));
2428 if (!untracked
->root
) {
2429 varint_len
= encode_varint(0, varbuf
);
2430 strbuf_add(out
, varbuf
, varint_len
);
2435 wd
.check_only
= ewah_new();
2436 wd
.valid
= ewah_new();
2437 wd
.sha1_valid
= ewah_new();
2438 strbuf_init(&wd
.out
, 1024);
2439 strbuf_init(&wd
.sb_stat
, 1024);
2440 strbuf_init(&wd
.sb_sha1
, 1024);
2441 write_one_dir(untracked
->root
, &wd
);
2443 varint_len
= encode_varint(wd
.index
, varbuf
);
2444 strbuf_add(out
, varbuf
, varint_len
);
2445 strbuf_addbuf(out
, &wd
.out
);
2446 ewah_serialize_strbuf(wd
.valid
, out
);
2447 ewah_serialize_strbuf(wd
.check_only
, out
);
2448 ewah_serialize_strbuf(wd
.sha1_valid
, out
);
2449 strbuf_addbuf(out
, &wd
.sb_stat
);
2450 strbuf_addbuf(out
, &wd
.sb_sha1
);
2451 strbuf_addch(out
, '\0'); /* safe guard for string lists */
2453 ewah_free(wd
.valid
);
2454 ewah_free(wd
.check_only
);
2455 ewah_free(wd
.sha1_valid
);
2456 strbuf_release(&wd
.out
);
2457 strbuf_release(&wd
.sb_stat
);
2458 strbuf_release(&wd
.sb_sha1
);
2461 static void free_untracked(struct untracked_cache_dir
*ucd
)
2466 for (i
= 0; i
< ucd
->dirs_nr
; i
++)
2467 free_untracked(ucd
->dirs
[i
]);
2468 for (i
= 0; i
< ucd
->untracked_nr
; i
++)
2469 free(ucd
->untracked
[i
]);
2470 free(ucd
->untracked
);
2475 void free_untracked_cache(struct untracked_cache
*uc
)
2478 free_untracked(uc
->root
);
2484 struct untracked_cache_dir
**ucd
;
2485 struct ewah_bitmap
*check_only
;
2486 struct ewah_bitmap
*valid
;
2487 struct ewah_bitmap
*sha1_valid
;
2488 const unsigned char *data
;
2489 const unsigned char *end
;
2492 static void stat_data_from_disk(struct stat_data
*to
, const struct stat_data
*from
)
2494 to
->sd_ctime
.sec
= get_be32(&from
->sd_ctime
.sec
);
2495 to
->sd_ctime
.nsec
= get_be32(&from
->sd_ctime
.nsec
);
2496 to
->sd_mtime
.sec
= get_be32(&from
->sd_mtime
.sec
);
2497 to
->sd_mtime
.nsec
= get_be32(&from
->sd_mtime
.nsec
);
2498 to
->sd_dev
= get_be32(&from
->sd_dev
);
2499 to
->sd_ino
= get_be32(&from
->sd_ino
);
2500 to
->sd_uid
= get_be32(&from
->sd_uid
);
2501 to
->sd_gid
= get_be32(&from
->sd_gid
);
2502 to
->sd_size
= get_be32(&from
->sd_size
);
2505 static int read_one_dir(struct untracked_cache_dir
**untracked_
,
2506 struct read_data
*rd
)
2508 struct untracked_cache_dir ud
, *untracked
;
2509 const unsigned char *next
, *data
= rd
->data
, *end
= rd
->end
;
2513 memset(&ud
, 0, sizeof(ud
));
2516 value
= decode_varint(&next
);
2520 ud
.untracked_alloc
= value
;
2521 ud
.untracked_nr
= value
;
2522 if (ud
.untracked_nr
)
2523 ud
.untracked
= xmalloc(sizeof(*ud
.untracked
) * ud
.untracked_nr
);
2527 ud
.dirs_alloc
= ud
.dirs_nr
= decode_varint(&next
);
2530 ud
.dirs
= xmalloc(sizeof(*ud
.dirs
) * ud
.dirs_nr
);
2533 len
= strlen((const char *)data
);
2534 next
= data
+ len
+ 1;
2537 *untracked_
= untracked
= xmalloc(sizeof(*untracked
) + len
);
2538 memcpy(untracked
, &ud
, sizeof(ud
));
2539 memcpy(untracked
->name
, data
, len
+ 1);
2542 for (i
= 0; i
< untracked
->untracked_nr
; i
++) {
2543 len
= strlen((const char *)data
);
2544 next
= data
+ len
+ 1;
2547 untracked
->untracked
[i
] = xstrdup((const char*)data
);
2551 rd
->ucd
[rd
->index
++] = untracked
;
2554 for (i
= 0; i
< untracked
->dirs_nr
; i
++) {
2555 len
= read_one_dir(untracked
->dirs
+ i
, rd
);
2562 static void set_check_only(size_t pos
, void *cb
)
2564 struct read_data
*rd
= cb
;
2565 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2569 static void read_stat(size_t pos
, void *cb
)
2571 struct read_data
*rd
= cb
;
2572 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2573 if (rd
->data
+ sizeof(struct stat_data
) > rd
->end
) {
2574 rd
->data
= rd
->end
+ 1;
2577 stat_data_from_disk(&ud
->stat_data
, (struct stat_data
*)rd
->data
);
2578 rd
->data
+= sizeof(struct stat_data
);
2582 static void read_sha1(size_t pos
, void *cb
)
2584 struct read_data
*rd
= cb
;
2585 struct untracked_cache_dir
*ud
= rd
->ucd
[pos
];
2586 if (rd
->data
+ 20 > rd
->end
) {
2587 rd
->data
= rd
->end
+ 1;
2590 hashcpy(ud
->exclude_sha1
, rd
->data
);
2594 static void load_sha1_stat(struct sha1_stat
*sha1_stat
,
2595 const struct stat_data
*stat
,
2596 const unsigned char *sha1
)
2598 stat_data_from_disk(&sha1_stat
->stat
, stat
);
2599 hashcpy(sha1_stat
->sha1
, sha1
);
2600 sha1_stat
->valid
= 1;
2603 struct untracked_cache
*read_untracked_extension(const void *data
, unsigned long sz
)
2605 const struct ondisk_untracked_cache
*ouc
;
2606 struct untracked_cache
*uc
;
2607 struct read_data rd
;
2608 const unsigned char *next
= data
, *end
= (const unsigned char *)data
+ sz
;
2612 if (sz
<= 1 || end
[-1] != '\0')
2616 ident_len
= decode_varint(&next
);
2617 if (next
+ ident_len
> end
)
2619 ident
= (const char *)next
;
2622 ouc
= (const struct ondisk_untracked_cache
*)next
;
2623 if (next
+ ouc_size(0) > end
)
2626 uc
= xcalloc(1, sizeof(*uc
));
2627 strbuf_init(&uc
->ident
, ident_len
);
2628 strbuf_add(&uc
->ident
, ident
, ident_len
);
2629 load_sha1_stat(&uc
->ss_info_exclude
, &ouc
->info_exclude_stat
,
2630 ouc
->info_exclude_sha1
);
2631 load_sha1_stat(&uc
->ss_excludes_file
, &ouc
->excludes_file_stat
,
2632 ouc
->excludes_file_sha1
);
2633 uc
->dir_flags
= get_be32(&ouc
->dir_flags
);
2634 uc
->exclude_per_dir
= xstrdup(ouc
->exclude_per_dir
);
2635 /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
2636 next
+= ouc_size(strlen(ouc
->exclude_per_dir
));
2640 len
= decode_varint(&next
);
2641 if (next
> end
|| len
== 0)
2644 rd
.valid
= ewah_new();
2645 rd
.check_only
= ewah_new();
2646 rd
.sha1_valid
= ewah_new();
2650 rd
.ucd
= xmalloc(sizeof(*rd
.ucd
) * len
);
2652 if (read_one_dir(&uc
->root
, &rd
) || rd
.index
!= len
)
2656 len
= ewah_read_mmap(rd
.valid
, next
, end
- next
);
2661 len
= ewah_read_mmap(rd
.check_only
, next
, end
- next
);
2666 len
= ewah_read_mmap(rd
.sha1_valid
, next
, end
- next
);
2670 ewah_each_bit(rd
.check_only
, set_check_only
, &rd
);
2671 rd
.data
= next
+ len
;
2672 ewah_each_bit(rd
.valid
, read_stat
, &rd
);
2673 ewah_each_bit(rd
.sha1_valid
, read_sha1
, &rd
);
2678 ewah_free(rd
.valid
);
2679 ewah_free(rd
.check_only
);
2680 ewah_free(rd
.sha1_valid
);
2683 free_untracked_cache(uc
);
2689 static void invalidate_one_directory(struct untracked_cache
*uc
,
2690 struct untracked_cache_dir
*ucd
)
2692 uc
->dir_invalidated
++;
2694 ucd
->untracked_nr
= 0;
2698 * Normally when an entry is added or removed from a directory,
2699 * invalidating that directory is enough. No need to touch its
2700 * ancestors. When a directory is shown as "foo/bar/" in git-status
2701 * however, deleting or adding an entry may have cascading effect.
2703 * Say the "foo/bar/file" has become untracked, we need to tell the
2704 * untracked_cache_dir of "foo" that "bar/" is not an untracked
2705 * directory any more (because "bar" is managed by foo as an untracked
2708 * Similarly, if "foo/bar/file" moves from untracked to tracked and it
2709 * was the last untracked entry in the entire "foo", we should show
2710 * "foo/" instead. Which means we have to invalidate past "bar" up to
2713 * This function traverses all directories from root to leaf. If there
2714 * is a chance of one of the above cases happening, we invalidate back
2715 * to root. Otherwise we just invalidate the leaf. There may be a more
2716 * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
2717 * detect these cases and avoid unnecessary invalidation, for example,
2718 * checking for the untracked entry named "bar/" in "foo", but for now
2719 * stick to something safe and simple.
2721 static int invalidate_one_component(struct untracked_cache
*uc
,
2722 struct untracked_cache_dir
*dir
,
2723 const char *path
, int len
)
2725 const char *rest
= strchr(path
, '/');
2728 int component_len
= rest
- path
;
2729 struct untracked_cache_dir
*d
=
2730 lookup_untracked(uc
, dir
, path
, component_len
);
2732 invalidate_one_component(uc
, d
, rest
+ 1,
2733 len
- (component_len
+ 1));
2735 invalidate_one_directory(uc
, dir
);
2739 invalidate_one_directory(uc
, dir
);
2740 return uc
->dir_flags
& DIR_SHOW_OTHER_DIRECTORIES
;
2743 void untracked_cache_invalidate_path(struct index_state
*istate
,
2746 if (!istate
->untracked
|| !istate
->untracked
->root
)
2748 invalidate_one_component(istate
->untracked
, istate
->untracked
->root
,
2749 path
, strlen(path
));
2752 void untracked_cache_remove_from_index(struct index_state
*istate
,
2755 untracked_cache_invalidate_path(istate
, path
);
2758 void untracked_cache_add_to_index(struct index_state
*istate
,
2761 untracked_cache_invalidate_path(istate
, path
);