2 * This handles recursive filename detection with exclude
3 * files, index knowledge etc..
5 * Copyright (C) Linus Torvalds, 2005-2006
6 * Junio Hamano, 2005-2006
12 struct path_simplify {
17 static int read_directory_recursive(struct dir_struct *dir, const char *path, int len,
18 int check_only, const struct path_simplify *simplify);
19 static int get_dtype(struct dirent *de, const char *path, int len);
21 /* helper string functions with support for the ignore_case flag */
22 int strcmp_icase(const char *a, const char *b)
24 return ignore_case ? strcasecmp(a, b) : strcmp(a, b);
27 int strncmp_icase(const char *a, const char *b, size_t count)
29 return ignore_case ? strncasecmp(a, b, count) : strncmp(a, b, count);
32 int fnmatch_icase(const char *pattern, const char *string, int flags)
34 return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0));
37 static size_t common_prefix_len(const char **pathspec)
39 const char *n, *first;
46 while ((n = *pathspec++)) {
48 for (i = 0; first == n || i < max; i++) {
50 if (!c || c != first[i] || is_glob_special(c))
55 if (first == n || len < max) {
65 * Returns a copy of the longest leading path common among all
68 char *common_prefix(const char **pathspec)
70 unsigned long len = common_prefix_len(pathspec);
72 return len ? xmemdupz(*pathspec, len) : NULL;
75 int fill_directory(struct dir_struct *dir, const char **pathspec)
81 * Calculate common prefix for the pathspec, and
82 * use that to optimize the directory walk
84 len = common_prefix_len(pathspec);
88 path = xmemdupz(*pathspec, len);
90 /* Read the directory and prune it */
91 read_directory(dir, path, len, pathspec);
97 int within_depth(const char *name, int namelen,
98 int depth, int max_depth)
100 const char *cp = name, *cpe = name + namelen;
106 if (depth > max_depth)
113 * Does 'match' match the given name?
114 * A match is found if
116 * (1) the 'match' string is leading directory of 'name', or
117 * (2) the 'match' string is a wildcard and matches 'name', or
118 * (3) the 'match' string is exactly the same as 'name'.
120 * and the return value tells which case it was.
122 * It returns 0 when there is no match.
124 static int match_one(const char *match, const char *name, int namelen)
128 /* If the match was just the prefix, we matched */
130 return MATCHED_RECURSIVELY;
134 unsigned char c1 = tolower(*match);
135 unsigned char c2 = tolower(*name);
136 if (c1 == '\0' || is_glob_special(c1))
146 unsigned char c1 = *match;
147 unsigned char c2 = *name;
148 if (c1 == '\0' || is_glob_special(c1))
160 * If we don't match the matchstring exactly,
161 * we need to match by fnmatch
163 matchlen = strlen(match);
164 if (strncmp_icase(match, name, matchlen))
165 return !fnmatch_icase(match, name, 0) ? MATCHED_FNMATCH : 0;
167 if (namelen == matchlen)
168 return MATCHED_EXACTLY;
169 if (match[matchlen-1] == '/' || name[matchlen] == '/')
170 return MATCHED_RECURSIVELY;
175 * Given a name and a list of pathspecs, see if the name matches
176 * any of the pathspecs. The caller is also interested in seeing
177 * all pathspec matches some names it calls this function with
178 * (otherwise the user could have mistyped the unmatched pathspec),
179 * and a mark is left in seen[] array for pathspec element that
180 * actually matched anything.
182 int match_pathspec(const char **pathspec, const char *name, int namelen,
183 int prefix, char *seen)
193 for (i = 0; pathspec[i] != NULL; i++) {
195 const char *match = pathspec[i] + prefix;
196 if (seen && seen[i] == MATCHED_EXACTLY)
198 how = match_one(match, name, namelen);
202 if (seen && seen[i] < how)
210 * Does 'match' match the given name?
211 * A match is found if
213 * (1) the 'match' string is leading directory of 'name', or
214 * (2) the 'match' string is a wildcard and matches 'name', or
215 * (3) the 'match' string is exactly the same as 'name'.
217 * and the return value tells which case it was.
219 * It returns 0 when there is no match.
221 static int match_pathspec_item(const struct pathspec_item *item, int prefix,
222 const char *name, int namelen)
224 /* name/namelen has prefix cut off by caller */
225 const char *match = item->match + prefix;
226 int matchlen = item->len - prefix;
228 /* If the match was just the prefix, we matched */
230 return MATCHED_RECURSIVELY;
232 if (matchlen <= namelen && !strncmp(match, name, matchlen)) {
233 if (matchlen == namelen)
234 return MATCHED_EXACTLY;
236 if (match[matchlen-1] == '/' || name[matchlen] == '/')
237 return MATCHED_RECURSIVELY;
240 if (item->use_wildcard && !fnmatch(match, name, 0))
241 return MATCHED_FNMATCH;
247 * Given a name and a list of pathspecs, see if the name matches
248 * any of the pathspecs. The caller is also interested in seeing
249 * all pathspec matches some names it calls this function with
250 * (otherwise the user could have mistyped the unmatched pathspec),
251 * and a mark is left in seen[] array for pathspec element that
252 * actually matched anything.
254 int match_pathspec_depth(const struct pathspec *ps,
255 const char *name, int namelen,
256 int prefix, char *seen)
261 if (!ps->recursive || ps->max_depth == -1)
262 return MATCHED_RECURSIVELY;
264 if (within_depth(name, namelen, 0, ps->max_depth))
265 return MATCHED_EXACTLY;
273 for (i = ps->nr - 1; i >= 0; i--) {
275 if (seen && seen[i] == MATCHED_EXACTLY)
277 how = match_pathspec_item(ps->items+i, prefix, name, namelen);
278 if (ps->recursive && ps->max_depth != -1 &&
279 how && how != MATCHED_FNMATCH) {
280 int len = ps->items[i].len;
281 if (name[len] == '/')
283 if (within_depth(name+len, namelen-len, 0, ps->max_depth))
284 how = MATCHED_EXACTLY;
291 if (seen && seen[i] < how)
298 static int no_wildcard(const char *string)
300 return string[strcspn(string, "*?[{\\")] == '\0';
303 void add_exclude(const char *string, const char *base,
304 int baselen, struct exclude_list *which)
311 if (*string == '!') {
315 len = strlen(string);
316 if (len && string[len - 1] == '/') {
318 x = xmalloc(sizeof(*x) + len);
320 memcpy(s, string, len - 1);
324 flags = EXC_FLAG_MUSTBEDIR;
326 x = xmalloc(sizeof(*x));
329 x->to_exclude = to_exclude;
330 x->patternlen = strlen(string);
332 x->baselen = baselen;
334 if (!strchr(string, '/'))
335 x->flags |= EXC_FLAG_NODIR;
336 if (no_wildcard(string))
337 x->flags |= EXC_FLAG_NOWILDCARD;
338 if (*string == '*' && no_wildcard(string+1))
339 x->flags |= EXC_FLAG_ENDSWITH;
340 ALLOC_GROW(which->excludes, which->nr + 1, which->alloc);
341 which->excludes[which->nr++] = x;
344 static void *read_skip_worktree_file_from_index(const char *path, size_t *size)
348 enum object_type type;
350 struct index_state *istate = &the_index;
353 pos = index_name_pos(istate, path, len);
356 if (!ce_skip_worktree(istate->cache[pos]))
358 data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz);
359 if (!data || type != OBJ_BLOB) {
367 void free_excludes(struct exclude_list *el)
371 for (i = 0; i < el->nr; i++)
372 free(el->excludes[i]);
379 int add_excludes_from_file_to_list(const char *fname,
383 struct exclude_list *which,
391 fd = open(fname, O_RDONLY);
392 if (fd < 0 || fstat(fd, &st) < 0) {
396 (buf = read_skip_worktree_file_from_index(fname, &size)) == NULL)
402 if (buf[size-1] != '\n') {
403 buf = xrealloc(buf, size+1);
408 size = xsize_t(st.st_size);
413 buf = xmalloc(size+1);
414 if (read_in_full(fd, buf, size) != size) {
426 for (i = 0; i < size; i++) {
427 if (buf[i] == '\n') {
428 if (entry != buf + i && entry[0] != '#') {
429 buf[i - (i && buf[i-1] == '\r')] = 0;
430 add_exclude(entry, base, baselen, which);
438 void add_excludes_from_file(struct dir_struct *dir, const char *fname)
440 if (add_excludes_from_file_to_list(fname, "", 0, NULL,
441 &dir->exclude_list[EXC_FILE], 0) < 0)
442 die("cannot use %s as an exclude file", fname);
445 static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
447 struct exclude_list *el;
448 struct exclude_stack *stk = NULL;
451 if ((!dir->exclude_per_dir) ||
452 (baselen + strlen(dir->exclude_per_dir) >= PATH_MAX))
453 return; /* too long a path -- ignore */
455 /* Pop the ones that are not the prefix of the path being checked. */
456 el = &dir->exclude_list[EXC_DIRS];
457 while ((stk = dir->exclude_stack) != NULL) {
458 if (stk->baselen <= baselen &&
459 !strncmp(dir->basebuf, base, stk->baselen))
461 dir->exclude_stack = stk->prev;
462 while (stk->exclude_ix < el->nr)
463 free(el->excludes[--el->nr]);
468 /* Read from the parent directories and push them down. */
469 current = stk ? stk->baselen : -1;
470 while (current < baselen) {
471 struct exclude_stack *stk = xcalloc(1, sizeof(*stk));
479 cp = strchr(base + current + 1, '/');
481 die("oops in prep_exclude");
484 stk->prev = dir->exclude_stack;
485 stk->baselen = cp - base;
486 stk->exclude_ix = el->nr;
487 memcpy(dir->basebuf + current, base + current,
488 stk->baselen - current);
489 strcpy(dir->basebuf + stk->baselen, dir->exclude_per_dir);
490 add_excludes_from_file_to_list(dir->basebuf,
491 dir->basebuf, stk->baselen,
492 &stk->filebuf, el, 1);
493 dir->exclude_stack = stk;
494 current = stk->baselen;
496 dir->basebuf[baselen] = '\0';
499 /* Scan the list and let the last match determine the fate.
500 * Return 1 for exclude, 0 for include and -1 for undecided.
502 int excluded_from_list(const char *pathname,
503 int pathlen, const char *basename, int *dtype,
504 struct exclude_list *el)
509 for (i = el->nr - 1; 0 <= i; i--) {
510 struct exclude *x = el->excludes[i];
511 const char *exclude = x->pattern;
512 int to_exclude = x->to_exclude;
514 if (x->flags & EXC_FLAG_MUSTBEDIR) {
515 if (*dtype == DT_UNKNOWN)
516 *dtype = get_dtype(NULL, pathname, pathlen);
517 if (*dtype != DT_DIR)
521 if (x->flags & EXC_FLAG_NODIR) {
523 if (x->flags & EXC_FLAG_NOWILDCARD) {
524 if (!strcmp_icase(exclude, basename))
526 } else if (x->flags & EXC_FLAG_ENDSWITH) {
527 if (x->patternlen - 1 <= pathlen &&
528 !strcmp_icase(exclude + 1, pathname + pathlen - x->patternlen + 1))
531 if (fnmatch_icase(exclude, basename, 0) == 0)
536 /* match with FNM_PATHNAME:
537 * exclude has base (baselen long) implicitly
540 int baselen = x->baselen;
544 if (pathlen < baselen ||
545 (baselen && pathname[baselen-1] != '/') ||
546 strncmp_icase(pathname, x->base, baselen))
549 if (x->flags & EXC_FLAG_NOWILDCARD) {
550 if (!strcmp_icase(exclude, pathname + baselen))
553 if (fnmatch_icase(exclude, pathname+baselen,
560 return -1; /* undecided */
563 int excluded(struct dir_struct *dir, const char *pathname, int *dtype_p)
565 int pathlen = strlen(pathname);
567 const char *basename = strrchr(pathname, '/');
568 basename = (basename) ? basename+1 : pathname;
570 prep_exclude(dir, pathname, basename-pathname);
571 for (st = EXC_CMDL; st <= EXC_FILE; st++) {
572 switch (excluded_from_list(pathname, pathlen, basename,
573 dtype_p, &dir->exclude_list[st])) {
583 void path_exclude_check_init(struct path_exclude_check *check,
584 struct dir_struct *dir)
587 strbuf_init(&check->path, 256);
590 void path_exclude_check_clear(struct path_exclude_check *check)
592 strbuf_release(&check->path);
596 * Is the ce->name excluded? This is for a caller like show_files() that
597 * do not honor directory hierarchy and iterate through paths that are
598 * possibly in an ignored directory.
600 * A path to a directory known to be excluded is left in check->path to
601 * optimize for repeated checks for files in the same excluded directory.
603 int path_excluded(struct path_exclude_check *check, struct cache_entry *ce)
606 struct strbuf *path = &check->path;
609 path->len <= ce_namelen(ce) &&
610 !memcmp(ce->name, path->buf, path->len) &&
611 (!ce->name[path->len] || ce->name[path->len] == '/'))
614 strbuf_setlen(path, 0);
615 for (i = 0; ce->name[i]; i++) {
616 int ch = ce->name[i];
620 if (excluded(check->dir, path->buf, &dtype))
623 strbuf_addch(path, ch);
626 /* An entry in the index; cannot be a directory with subentries */
627 strbuf_setlen(path, 0);
629 dtype = ce_to_dtype(ce);
630 return excluded(check->dir, ce->name, &dtype);
633 static struct dir_entry *dir_entry_new(const char *pathname, int len)
635 struct dir_entry *ent;
637 ent = xmalloc(sizeof(*ent) + len + 1);
639 memcpy(ent->name, pathname, len);
644 static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len)
646 if (cache_name_exists(pathname, len, ignore_case))
649 ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc);
650 return dir->entries[dir->nr++] = dir_entry_new(pathname, len);
653 struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len)
655 if (!cache_name_is_other(pathname, len))
658 ALLOC_GROW(dir->ignored, dir->ignored_nr+1, dir->ignored_alloc);
659 return dir->ignored[dir->ignored_nr++] = dir_entry_new(pathname, len);
663 index_nonexistent = 0,
669 * Do not use the alphabetically stored index to look up
670 * the directory name; instead, use the case insensitive
673 static enum exist_status directory_exists_in_index_icase(const char *dirname, int len)
675 struct cache_entry *ce = index_name_exists(&the_index, dirname, len + 1, ignore_case);
676 unsigned char endchar;
679 return index_nonexistent;
680 endchar = ce->name[len];
683 * The cache_entry structure returned will contain this dirname
684 * and possibly additional path components.
687 return index_directory;
690 * If there are no additional path components, then this cache_entry
691 * represents a submodule. Submodules, despite being directories,
692 * are stored in the cache without a closing slash.
694 if (!endchar && S_ISGITLINK(ce->ce_mode))
697 /* This should never be hit, but it exists just in case. */
698 return index_nonexistent;
702 * The index sorts alphabetically by entry name, which
703 * means that a gitlink sorts as '\0' at the end, while
704 * a directory (which is defined not as an entry, but as
705 * the files it contains) will sort with the '/' at the
708 static enum exist_status directory_exists_in_index(const char *dirname, int len)
713 return directory_exists_in_index_icase(dirname, len);
715 pos = cache_name_pos(dirname, len);
718 while (pos < active_nr) {
719 struct cache_entry *ce = active_cache[pos++];
720 unsigned char endchar;
722 if (strncmp(ce->name, dirname, len))
724 endchar = ce->name[len];
728 return index_directory;
729 if (!endchar && S_ISGITLINK(ce->ce_mode))
732 return index_nonexistent;
736 * When we find a directory when traversing the filesystem, we
737 * have three distinct cases:
740 * - see it as a directory
743 * and which one we choose depends on a combination of existing
744 * git index contents and the flags passed into the directory
747 * Case 1: If we *already* have entries in the index under that
748 * directory name, we always recurse into the directory to see
751 * Case 2: If we *already* have that directory name as a gitlink,
752 * we always continue to see it as a gitlink, regardless of whether
753 * there is an actual git directory there or not (it might not
754 * be checked out as a subproject!)
756 * Case 3: if we didn't have it in the index previously, we
757 * have a few sub-cases:
759 * (a) if "show_other_directories" is true, we show it as
760 * just a directory, unless "hide_empty_directories" is
761 * also true and the directory is empty, in which case
762 * we just ignore it entirely.
763 * (b) if it looks like a git directory, and we don't have
764 * 'no_gitlinks' set we treat it as a gitlink, and show it
766 * (c) otherwise, we recurse into it.
768 enum directory_treatment {
771 recurse_into_directory
774 static enum directory_treatment treat_directory(struct dir_struct *dir,
775 const char *dirname, int len,
776 const struct path_simplify *simplify)
778 /* The "len-1" is to strip the final '/' */
779 switch (directory_exists_in_index(dirname, len-1)) {
780 case index_directory:
781 return recurse_into_directory;
784 if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES)
785 return ignore_directory;
786 return show_directory;
788 case index_nonexistent:
789 if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES)
791 if (!(dir->flags & DIR_NO_GITLINKS)) {
792 unsigned char sha1[20];
793 if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0)
794 return show_directory;
796 return recurse_into_directory;
799 /* This is the "show_other_directories" case */
800 if (!(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES))
801 return show_directory;
802 if (!read_directory_recursive(dir, dirname, len, 1, simplify))
803 return ignore_directory;
804 return show_directory;
808 * This is an inexact early pruning of any recursive directory
809 * reading - if the path cannot possibly be in the pathspec,
810 * return true, and we'll skip it early.
812 static int simplify_away(const char *path, int pathlen, const struct path_simplify *simplify)
816 const char *match = simplify->path;
817 int len = simplify->len;
823 if (!memcmp(path, match, len))
833 * This function tells us whether an excluded path matches a
834 * list of "interesting" pathspecs. That is, whether a path matched
835 * by any of the pathspecs could possibly be ignored by excluding
836 * the specified path. This can happen if:
838 * 1. the path is mentioned explicitly in the pathspec
840 * 2. the path is a directory prefix of some element in the
843 static int exclude_matches_pathspec(const char *path, int len,
844 const struct path_simplify *simplify)
847 for (; simplify->path; simplify++) {
848 if (len == simplify->len
849 && !memcmp(path, simplify->path, len))
851 if (len < simplify->len
852 && simplify->path[len] == '/'
853 && !memcmp(path, simplify->path, len))
860 static int get_index_dtype(const char *path, int len)
863 struct cache_entry *ce;
865 ce = cache_name_exists(path, len, 0);
867 if (!ce_uptodate(ce))
869 if (S_ISGITLINK(ce->ce_mode))
872 * Nobody actually cares about the
873 * difference between DT_LNK and DT_REG
878 /* Try to look it up as a directory */
879 pos = cache_name_pos(path, len);
883 while (pos < active_nr) {
884 ce = active_cache[pos++];
885 if (strncmp(ce->name, path, len))
887 if (ce->name[len] > '/')
889 if (ce->name[len] < '/')
891 if (!ce_uptodate(ce))
892 break; /* continue? */
898 static int get_dtype(struct dirent *de, const char *path, int len)
900 int dtype = de ? DTYPE(de) : DT_UNKNOWN;
903 if (dtype != DT_UNKNOWN)
905 dtype = get_index_dtype(path, len);
906 if (dtype != DT_UNKNOWN)
908 if (lstat(path, &st))
910 if (S_ISREG(st.st_mode))
912 if (S_ISDIR(st.st_mode))
914 if (S_ISLNK(st.st_mode))
919 enum path_treatment {
925 static enum path_treatment treat_one_path(struct dir_struct *dir,
926 char *path, int *len,
927 const struct path_simplify *simplify,
928 int dtype, struct dirent *de)
930 int exclude = excluded(dir, path, &dtype);
931 if (exclude && (dir->flags & DIR_COLLECT_IGNORED)
932 && exclude_matches_pathspec(path, *len, simplify))
933 dir_add_ignored(dir, path, *len);
936 * Excluded? If we don't explicitly want to show
937 * ignored files, ignore it
939 if (exclude && !(dir->flags & DIR_SHOW_IGNORED))
942 if (dtype == DT_UNKNOWN)
943 dtype = get_dtype(de, path, *len);
946 * Do we want to see just the ignored files?
947 * We still need to recurse into directories,
948 * even if we don't ignore them, since the
949 * directory may contain files that we do..
951 if (!exclude && (dir->flags & DIR_SHOW_IGNORED)) {
960 memcpy(path + *len, "/", 2);
962 switch (treat_directory(dir, path, *len, simplify)) {
964 if (exclude != !!(dir->flags
968 case recurse_into_directory:
970 case ignore_directory:
981 static enum path_treatment treat_path(struct dir_struct *dir,
983 char *path, int path_max,
985 const struct path_simplify *simplify,
990 if (is_dot_or_dotdot(de->d_name) || !strcmp(de->d_name, ".git"))
992 *len = strlen(de->d_name);
993 /* Ignore overly long pathnames! */
994 if (*len + baselen + 8 > path_max)
996 memcpy(path + baselen, de->d_name, *len + 1);
998 if (simplify_away(path, *len, simplify))
1002 return treat_one_path(dir, path, len, simplify, dtype, de);
1006 * Read a directory tree. We currently ignore anything but
1007 * directories, regular files and symlinks. That's because git
1008 * doesn't handle them at all yet. Maybe that will change some
1011 * Also, we ignore the name ".git" (even if it is not a directory).
1012 * That likely will not change.
1014 static int read_directory_recursive(struct dir_struct *dir,
1015 const char *base, int baselen,
1017 const struct path_simplify *simplify)
1019 DIR *fdir = opendir(*base ? base : ".");
1022 char path[PATH_MAX + 1];
1027 memcpy(path, base, baselen);
1029 while ((de = readdir(fdir)) != NULL) {
1031 switch (treat_path(dir, de, path, sizeof(path),
1032 baselen, simplify, &len)) {
1034 contents += read_directory_recursive(dir, path, len, 0, simplify);
1045 dir_add_name(dir, path, len);
1053 static int cmp_name(const void *p1, const void *p2)
1055 const struct dir_entry *e1 = *(const struct dir_entry **)p1;
1056 const struct dir_entry *e2 = *(const struct dir_entry **)p2;
1058 return cache_name_compare(e1->name, e1->len,
1063 * Return the length of the "simple" part of a path match limiter.
1065 static int simple_length(const char *match)
1070 unsigned char c = *match++;
1072 if (c == '\0' || is_glob_special(c))
1077 static struct path_simplify *create_simplify(const char **pathspec)
1080 struct path_simplify *simplify = NULL;
1085 for (nr = 0 ; ; nr++) {
1088 alloc = alloc_nr(alloc);
1089 simplify = xrealloc(simplify, alloc * sizeof(*simplify));
1091 match = *pathspec++;
1094 simplify[nr].path = match;
1095 simplify[nr].len = simple_length(match);
1097 simplify[nr].path = NULL;
1098 simplify[nr].len = 0;
1102 static void free_simplify(struct path_simplify *simplify)
1107 static int treat_leading_path(struct dir_struct *dir,
1108 const char *path, int len,
1109 const struct path_simplify *simplify)
1111 char pathbuf[PATH_MAX];
1115 while (len && path[len - 1] == '/')
1121 cp = path + baselen + !!baselen;
1122 cp = memchr(cp, '/', path + len - cp);
1126 baselen = cp - path;
1127 memcpy(pathbuf, path, baselen);
1128 pathbuf[baselen] = '\0';
1129 if (!is_directory(pathbuf))
1131 if (simplify_away(pathbuf, baselen, simplify))
1134 if (treat_one_path(dir, pathbuf, &blen, simplify,
1135 DT_DIR, NULL) == path_ignored)
1136 return 0; /* do not recurse into it */
1138 return 1; /* finished checking */
1142 int read_directory(struct dir_struct *dir, const char *path, int len, const char **pathspec)
1144 struct path_simplify *simplify;
1146 if (has_symlink_leading_path(path, len))
1149 simplify = create_simplify(pathspec);
1150 if (!len || treat_leading_path(dir, path, len, simplify))
1151 read_directory_recursive(dir, path, len, 0, simplify);
1152 free_simplify(simplify);
1153 qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name);
1154 qsort(dir->ignored, dir->ignored_nr, sizeof(struct dir_entry *), cmp_name);
1158 int file_exists(const char *f)
1161 return lstat(f, &sb) == 0;
1165 * Given two normalized paths (a trailing slash is ok), if subdir is
1166 * outside dir, return -1. Otherwise return the offset in subdir that
1167 * can be used as relative path to dir.
1169 int dir_inside_of(const char *subdir, const char *dir)
1173 assert(dir && subdir && *dir && *subdir);
1175 while (*dir && *subdir && *dir == *subdir) {
1181 /* hel[p]/me vs hel[l]/yeah */
1182 if (*dir && *subdir)
1186 return !*dir ? offset : -1; /* same dir */
1188 /* foo/[b]ar vs foo/[] */
1189 if (is_dir_sep(dir[-1]))
1190 return is_dir_sep(subdir[-1]) ? offset : -1;
1192 /* foo[/]bar vs foo[] */
1193 return is_dir_sep(*subdir) ? offset + 1 : -1;
1196 int is_inside_dir(const char *dir)
1201 if (!getcwd(cwd, sizeof(cwd)))
1202 die_errno("can't find the current directory");
1203 return dir_inside_of(cwd, dir) >= 0;
1206 int is_empty_dir(const char *path)
1208 DIR *dir = opendir(path);
1215 while ((e = readdir(dir)) != NULL)
1216 if (!is_dot_or_dotdot(e->d_name)) {
1225 int remove_dir_recursively(struct strbuf *path, int flag)
1229 int ret = 0, original_len = path->len, len;
1230 int only_empty = (flag & REMOVE_DIR_EMPTY_ONLY);
1231 unsigned char submodule_head[20];
1233 if ((flag & REMOVE_DIR_KEEP_NESTED_GIT) &&
1234 !resolve_gitlink_ref(path->buf, "HEAD", submodule_head))
1235 /* Do not descend and nuke a nested git work tree. */
1238 dir = opendir(path->buf);
1240 return rmdir(path->buf);
1241 if (path->buf[original_len - 1] != '/')
1242 strbuf_addch(path, '/');
1245 while ((e = readdir(dir)) != NULL) {
1247 if (is_dot_or_dotdot(e->d_name))
1250 strbuf_setlen(path, len);
1251 strbuf_addstr(path, e->d_name);
1252 if (lstat(path->buf, &st))
1254 else if (S_ISDIR(st.st_mode)) {
1255 if (!remove_dir_recursively(path, only_empty))
1256 continue; /* happy */
1257 } else if (!only_empty && !unlink(path->buf))
1258 continue; /* happy, too */
1260 /* path too long, stat fails, or non-directory still exists */
1266 strbuf_setlen(path, original_len);
1268 ret = rmdir(path->buf);
1272 void setup_standard_excludes(struct dir_struct *dir)
1276 dir->exclude_per_dir = ".gitignore";
1277 path = git_path("info/exclude");
1278 if (!access(path, R_OK))
1279 add_excludes_from_file(dir, path);
1280 if (excludes_file && !access(excludes_file, R_OK))
1281 add_excludes_from_file(dir, excludes_file);
1284 int remove_path(const char *name)
1288 if (unlink(name) && errno != ENOENT)
1291 slash = strrchr(name, '/');
1293 char *dirs = xstrdup(name);
1294 slash = dirs + (slash - name);
1297 } while (rmdir(dirs) == 0 && (slash = strrchr(dirs, '/')));
1303 static int pathspec_item_cmp(const void *a_, const void *b_)
1305 struct pathspec_item *a, *b;
1307 a = (struct pathspec_item *)a_;
1308 b = (struct pathspec_item *)b_;
1309 return strcmp(a->match, b->match);
1312 int init_pathspec(struct pathspec *pathspec, const char **paths)
1314 const char **p = paths;
1317 memset(pathspec, 0, sizeof(*pathspec));
1322 pathspec->raw = paths;
1323 pathspec->nr = p - paths;
1327 pathspec->items = xmalloc(sizeof(struct pathspec_item)*pathspec->nr);
1328 for (i = 0; i < pathspec->nr; i++) {
1329 struct pathspec_item *item = pathspec->items+i;
1330 const char *path = paths[i];
1333 item->len = strlen(path);
1334 item->use_wildcard = !no_wildcard(path);
1335 if (item->use_wildcard)
1336 pathspec->has_wildcard = 1;
1339 qsort(pathspec->items, pathspec->nr,
1340 sizeof(struct pathspec_item), pathspec_item_cmp);
1345 void free_pathspec(struct pathspec *pathspec)
1347 free(pathspec->items);
1348 pathspec->items = NULL;