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)
80 * Calculate common prefix for the pathspec, and
81 * use that to optimize the directory walk
83 len = common_prefix_len(pathspec);
85 /* Read the directory and prune it */
86 read_directory(dir, pathspec ? *pathspec : "", len, pathspec);
90 int within_depth(const char *name, int namelen,
91 int depth, int max_depth)
93 const char *cp = name, *cpe = name + namelen;
99 if (depth > max_depth)
106 * Does 'match' match the given name?
107 * A match is found if
109 * (1) the 'match' string is leading directory of 'name', or
110 * (2) the 'match' string is a wildcard and matches 'name', or
111 * (3) the 'match' string is exactly the same as 'name'.
113 * and the return value tells which case it was.
115 * It returns 0 when there is no match.
117 static int match_one(const char *match, const char *name, int namelen)
121 /* If the match was just the prefix, we matched */
123 return MATCHED_RECURSIVELY;
127 unsigned char c1 = tolower(*match);
128 unsigned char c2 = tolower(*name);
129 if (c1 == '\0' || is_glob_special(c1))
139 unsigned char c1 = *match;
140 unsigned char c2 = *name;
141 if (c1 == '\0' || is_glob_special(c1))
153 * If we don't match the matchstring exactly,
154 * we need to match by fnmatch
156 matchlen = strlen(match);
157 if (strncmp_icase(match, name, matchlen))
158 return !fnmatch_icase(match, name, 0) ? MATCHED_FNMATCH : 0;
160 if (namelen == matchlen)
161 return MATCHED_EXACTLY;
162 if (match[matchlen-1] == '/' || name[matchlen] == '/')
163 return MATCHED_RECURSIVELY;
168 * Given a name and a list of pathspecs, see if the name matches
169 * any of the pathspecs. The caller is also interested in seeing
170 * all pathspec matches some names it calls this function with
171 * (otherwise the user could have mistyped the unmatched pathspec),
172 * and a mark is left in seen[] array for pathspec element that
173 * actually matched anything.
175 int match_pathspec(const char **pathspec, const char *name, int namelen,
176 int prefix, char *seen)
186 for (i = 0; pathspec[i] != NULL; i++) {
188 const char *match = pathspec[i] + prefix;
189 if (seen && seen[i] == MATCHED_EXACTLY)
191 how = match_one(match, name, namelen);
195 if (seen && seen[i] < how)
203 * Does 'match' match the given name?
204 * A match is found if
206 * (1) the 'match' string is leading directory of 'name', or
207 * (2) the 'match' string is a wildcard and matches 'name', or
208 * (3) the 'match' string is exactly the same as 'name'.
210 * and the return value tells which case it was.
212 * It returns 0 when there is no match.
214 static int match_pathspec_item(const struct pathspec_item *item, int prefix,
215 const char *name, int namelen)
217 /* name/namelen has prefix cut off by caller */
218 const char *match = item->match + prefix;
219 int matchlen = item->len - prefix;
221 /* If the match was just the prefix, we matched */
223 return MATCHED_RECURSIVELY;
225 if (matchlen <= namelen && !strncmp(match, name, matchlen)) {
226 if (matchlen == namelen)
227 return MATCHED_EXACTLY;
229 if (match[matchlen-1] == '/' || name[matchlen] == '/')
230 return MATCHED_RECURSIVELY;
233 if (item->use_wildcard && !fnmatch(match, name, 0))
234 return MATCHED_FNMATCH;
240 * Given a name and a list of pathspecs, see if the name matches
241 * any of the pathspecs. The caller is also interested in seeing
242 * all pathspec matches some names it calls this function with
243 * (otherwise the user could have mistyped the unmatched pathspec),
244 * and a mark is left in seen[] array for pathspec element that
245 * actually matched anything.
247 int match_pathspec_depth(const struct pathspec *ps,
248 const char *name, int namelen,
249 int prefix, char *seen)
254 if (!ps->recursive || ps->max_depth == -1)
255 return MATCHED_RECURSIVELY;
257 if (within_depth(name, namelen, 0, ps->max_depth))
258 return MATCHED_EXACTLY;
266 for (i = ps->nr - 1; i >= 0; i--) {
268 if (seen && seen[i] == MATCHED_EXACTLY)
270 how = match_pathspec_item(ps->items+i, prefix, name, namelen);
271 if (ps->recursive && ps->max_depth != -1 &&
272 how && how != MATCHED_FNMATCH) {
273 int len = ps->items[i].len;
274 if (name[len] == '/')
276 if (within_depth(name+len, namelen-len, 0, ps->max_depth))
277 how = MATCHED_EXACTLY;
284 if (seen && seen[i] < how)
292 * Return the length of the "simple" part of a path match limiter.
294 static int simple_length(const char *match)
299 unsigned char c = *match++;
301 if (c == '\0' || is_glob_special(c))
306 static int no_wildcard(const char *string)
308 return string[simple_length(string)] == '\0';
311 void add_exclude(const char *string, const char *base,
312 int baselen, struct exclude_list *which)
319 if (*string == '!') {
323 len = strlen(string);
324 if (len && string[len - 1] == '/') {
326 x = xmalloc(sizeof(*x) + len);
328 memcpy(s, string, len - 1);
332 flags = EXC_FLAG_MUSTBEDIR;
334 x = xmalloc(sizeof(*x));
337 x->to_exclude = to_exclude;
338 x->patternlen = strlen(string);
340 x->baselen = baselen;
342 if (!strchr(string, '/'))
343 x->flags |= EXC_FLAG_NODIR;
344 x->nowildcardlen = simple_length(string);
345 if (*string == '*' && no_wildcard(string+1))
346 x->flags |= EXC_FLAG_ENDSWITH;
347 ALLOC_GROW(which->excludes, which->nr + 1, which->alloc);
348 which->excludes[which->nr++] = x;
351 static void *read_skip_worktree_file_from_index(const char *path, size_t *size)
355 enum object_type type;
357 struct index_state *istate = &the_index;
360 pos = index_name_pos(istate, path, len);
363 if (!ce_skip_worktree(istate->cache[pos]))
365 data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz);
366 if (!data || type != OBJ_BLOB) {
374 void free_excludes(struct exclude_list *el)
378 for (i = 0; i < el->nr; i++)
379 free(el->excludes[i]);
386 int add_excludes_from_file_to_list(const char *fname,
390 struct exclude_list *which,
398 fd = open(fname, O_RDONLY);
399 if (fd < 0 || fstat(fd, &st) < 0) {
401 warn_on_inaccessible(fname);
405 (buf = read_skip_worktree_file_from_index(fname, &size)) == NULL)
411 if (buf[size-1] != '\n') {
412 buf = xrealloc(buf, size+1);
417 size = xsize_t(st.st_size);
422 buf = xmalloc(size+1);
423 if (read_in_full(fd, buf, size) != size) {
435 for (i = 0; i < size; i++) {
436 if (buf[i] == '\n') {
437 if (entry != buf + i && entry[0] != '#') {
438 buf[i - (i && buf[i-1] == '\r')] = 0;
439 add_exclude(entry, base, baselen, which);
447 void add_excludes_from_file(struct dir_struct *dir, const char *fname)
449 if (add_excludes_from_file_to_list(fname, "", 0, NULL,
450 &dir->exclude_list[EXC_FILE], 0) < 0)
451 die("cannot use %s as an exclude file", fname);
454 static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
456 struct exclude_list *el;
457 struct exclude_stack *stk = NULL;
460 if ((!dir->exclude_per_dir) ||
461 (baselen + strlen(dir->exclude_per_dir) >= PATH_MAX))
462 return; /* too long a path -- ignore */
464 /* Pop the ones that are not the prefix of the path being checked. */
465 el = &dir->exclude_list[EXC_DIRS];
466 while ((stk = dir->exclude_stack) != NULL) {
467 if (stk->baselen <= baselen &&
468 !strncmp(dir->basebuf, base, stk->baselen))
470 dir->exclude_stack = stk->prev;
471 while (stk->exclude_ix < el->nr)
472 free(el->excludes[--el->nr]);
477 /* Read from the parent directories and push them down. */
478 current = stk ? stk->baselen : -1;
479 while (current < baselen) {
480 struct exclude_stack *stk = xcalloc(1, sizeof(*stk));
488 cp = strchr(base + current + 1, '/');
490 die("oops in prep_exclude");
493 stk->prev = dir->exclude_stack;
494 stk->baselen = cp - base;
495 stk->exclude_ix = el->nr;
496 memcpy(dir->basebuf + current, base + current,
497 stk->baselen - current);
498 strcpy(dir->basebuf + stk->baselen, dir->exclude_per_dir);
499 add_excludes_from_file_to_list(dir->basebuf,
500 dir->basebuf, stk->baselen,
501 &stk->filebuf, el, 1);
502 dir->exclude_stack = stk;
503 current = stk->baselen;
505 dir->basebuf[baselen] = '\0';
508 /* Scan the list and let the last match determine the fate.
509 * Return 1 for exclude, 0 for include and -1 for undecided.
511 int excluded_from_list(const char *pathname,
512 int pathlen, const char *basename, int *dtype,
513 struct exclude_list *el)
518 return -1; /* undefined */
520 for (i = el->nr - 1; 0 <= i; i--) {
521 struct exclude *x = el->excludes[i];
522 const char *name, *exclude = x->pattern;
523 int to_exclude = x->to_exclude;
524 int namelen, prefix = x->nowildcardlen;
526 if (x->flags & EXC_FLAG_MUSTBEDIR) {
527 if (*dtype == DT_UNKNOWN)
528 *dtype = get_dtype(NULL, pathname, pathlen);
529 if (*dtype != DT_DIR)
533 if (x->flags & EXC_FLAG_NODIR) {
535 if (prefix == x->patternlen) {
536 if (!strcmp_icase(exclude, basename))
538 } else if (x->flags & EXC_FLAG_ENDSWITH) {
539 if (x->patternlen - 1 <= pathlen &&
540 !strcmp_icase(exclude + 1, pathname + pathlen - x->patternlen + 1))
543 if (fnmatch_icase(exclude, basename, 0) == 0)
549 /* match with FNM_PATHNAME:
550 * exclude has base (baselen long) implicitly in front of it.
552 if (*exclude == '/') {
557 if (pathlen < x->baselen ||
558 (x->baselen && pathname[x->baselen-1] != '/') ||
559 strncmp_icase(pathname, x->base, x->baselen))
562 namelen = x->baselen ? pathlen - x->baselen : pathlen;
563 name = pathname + pathlen - namelen;
565 /* if the non-wildcard part is longer than the
566 remaining pathname, surely it cannot match */
567 if (prefix > namelen)
571 if (strncmp_icase(exclude, name, prefix))
578 if (!namelen || !fnmatch_icase(exclude, name, FNM_PATHNAME))
581 return -1; /* undecided */
584 static int excluded(struct dir_struct *dir, const char *pathname, int *dtype_p)
586 int pathlen = strlen(pathname);
588 const char *basename = strrchr(pathname, '/');
589 basename = (basename) ? basename+1 : pathname;
591 prep_exclude(dir, pathname, basename-pathname);
592 for (st = EXC_CMDL; st <= EXC_FILE; st++) {
593 switch (excluded_from_list(pathname, pathlen, basename,
594 dtype_p, &dir->exclude_list[st])) {
604 void path_exclude_check_init(struct path_exclude_check *check,
605 struct dir_struct *dir)
608 strbuf_init(&check->path, 256);
611 void path_exclude_check_clear(struct path_exclude_check *check)
613 strbuf_release(&check->path);
617 * Is this name excluded? This is for a caller like show_files() that
618 * do not honor directory hierarchy and iterate through paths that are
619 * possibly in an ignored directory.
621 * A path to a directory known to be excluded is left in check->path to
622 * optimize for repeated checks for files in the same excluded directory.
624 int path_excluded(struct path_exclude_check *check,
625 const char *name, int namelen, int *dtype)
628 struct strbuf *path = &check->path;
631 * we allow the caller to pass namelen as an optimization; it
632 * must match the length of the name, as we eventually call
633 * excluded() on the whole name string.
636 namelen = strlen(name);
639 path->len <= namelen &&
640 !memcmp(name, path->buf, path->len) &&
641 (!name[path->len] || name[path->len] == '/'))
644 strbuf_setlen(path, 0);
645 for (i = 0; name[i]; i++) {
650 if (excluded(check->dir, path->buf, &dt))
653 strbuf_addch(path, ch);
656 /* An entry in the index; cannot be a directory with subentries */
657 strbuf_setlen(path, 0);
659 return excluded(check->dir, name, dtype);
662 static struct dir_entry *dir_entry_new(const char *pathname, int len)
664 struct dir_entry *ent;
666 ent = xmalloc(sizeof(*ent) + len + 1);
668 memcpy(ent->name, pathname, len);
673 static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len)
675 if (!(dir->flags & DIR_SHOW_IGNORED) &&
676 cache_name_exists(pathname, len, ignore_case))
679 ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc);
680 return dir->entries[dir->nr++] = dir_entry_new(pathname, len);
683 struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len)
685 if (!cache_name_is_other(pathname, len))
688 ALLOC_GROW(dir->ignored, dir->ignored_nr+1, dir->ignored_alloc);
689 return dir->ignored[dir->ignored_nr++] = dir_entry_new(pathname, len);
693 index_nonexistent = 0,
699 * Do not use the alphabetically stored index to look up
700 * the directory name; instead, use the case insensitive
703 static enum exist_status directory_exists_in_index_icase(const char *dirname, int len)
705 struct cache_entry *ce = index_name_exists(&the_index, dirname, len + 1, ignore_case);
706 unsigned char endchar;
709 return index_nonexistent;
710 endchar = ce->name[len];
713 * The cache_entry structure returned will contain this dirname
714 * and possibly additional path components.
717 return index_directory;
720 * If there are no additional path components, then this cache_entry
721 * represents a submodule. Submodules, despite being directories,
722 * are stored in the cache without a closing slash.
724 if (!endchar && S_ISGITLINK(ce->ce_mode))
727 /* This should never be hit, but it exists just in case. */
728 return index_nonexistent;
732 * The index sorts alphabetically by entry name, which
733 * means that a gitlink sorts as '\0' at the end, while
734 * a directory (which is defined not as an entry, but as
735 * the files it contains) will sort with the '/' at the
738 static enum exist_status directory_exists_in_index(const char *dirname, int len)
743 return directory_exists_in_index_icase(dirname, len);
745 pos = cache_name_pos(dirname, len);
748 while (pos < active_nr) {
749 struct cache_entry *ce = active_cache[pos++];
750 unsigned char endchar;
752 if (strncmp(ce->name, dirname, len))
754 endchar = ce->name[len];
758 return index_directory;
759 if (!endchar && S_ISGITLINK(ce->ce_mode))
762 return index_nonexistent;
766 * When we find a directory when traversing the filesystem, we
767 * have three distinct cases:
770 * - see it as a directory
773 * and which one we choose depends on a combination of existing
774 * git index contents and the flags passed into the directory
777 * Case 1: If we *already* have entries in the index under that
778 * directory name, we recurse into the directory to see all the files,
779 * unless the directory is excluded and we want to show ignored
782 * Case 2: If we *already* have that directory name as a gitlink,
783 * we always continue to see it as a gitlink, regardless of whether
784 * there is an actual git directory there or not (it might not
785 * be checked out as a subproject!)
787 * Case 3: if we didn't have it in the index previously, we
788 * have a few sub-cases:
790 * (a) if "show_other_directories" is true, we show it as
791 * just a directory, unless "hide_empty_directories" is
792 * also true and the directory is empty, in which case
793 * we just ignore it entirely.
794 * if we are looking for ignored directories, look if it
795 * contains only ignored files to decide if it must be shown as
797 * (b) if it looks like a git directory, and we don't have
798 * 'no_gitlinks' set we treat it as a gitlink, and show it
800 * (c) otherwise, we recurse into it.
802 enum directory_treatment {
805 recurse_into_directory
808 static enum directory_treatment treat_directory(struct dir_struct *dir,
809 const char *dirname, int len, int exclude,
810 const struct path_simplify *simplify)
812 /* The "len-1" is to strip the final '/' */
813 switch (directory_exists_in_index(dirname, len-1)) {
814 case index_directory:
815 if ((dir->flags & DIR_SHOW_OTHER_DIRECTORIES) && exclude)
818 return recurse_into_directory;
821 if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES)
822 return ignore_directory;
823 return show_directory;
825 case index_nonexistent:
826 if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES)
828 if (!(dir->flags & DIR_NO_GITLINKS)) {
829 unsigned char sha1[20];
830 if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0)
831 return show_directory;
833 return recurse_into_directory;
836 /* This is the "show_other_directories" case */
839 * We are looking for ignored files and our directory is not ignored,
840 * check if it contains only ignored files
842 if ((dir->flags & DIR_SHOW_IGNORED) && !exclude) {
844 dir->flags &= ~DIR_SHOW_IGNORED;
845 dir->flags |= DIR_HIDE_EMPTY_DIRECTORIES;
846 ignored = read_directory_recursive(dir, dirname, len, 1, simplify);
847 dir->flags &= ~DIR_HIDE_EMPTY_DIRECTORIES;
848 dir->flags |= DIR_SHOW_IGNORED;
850 return ignored ? ignore_directory : show_directory;
852 if (!(dir->flags & DIR_SHOW_IGNORED) &&
853 !(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES))
854 return show_directory;
855 if (!read_directory_recursive(dir, dirname, len, 1, simplify))
856 return ignore_directory;
857 return show_directory;
861 * Decide what to do when we find a file while traversing the
862 * filesystem. Mostly two cases:
864 * 1. We are looking for ignored files
865 * (a) File is ignored, include it
866 * (b) File is in ignored path, include it
867 * (c) File is not ignored, exclude it
869 * 2. Other scenarios, include the file if not excluded
871 * Return 1 for exclude, 0 for include.
873 static int treat_file(struct dir_struct *dir, struct strbuf *path, int exclude, int *dtype)
875 struct path_exclude_check check;
876 int exclude_file = 0;
879 exclude_file = !(dir->flags & DIR_SHOW_IGNORED);
880 else if (dir->flags & DIR_SHOW_IGNORED) {
881 /* Always exclude indexed files */
882 struct cache_entry *ce = index_name_exists(&the_index,
883 path->buf, path->len, ignore_case);
888 path_exclude_check_init(&check, dir);
890 if (!path_excluded(&check, path->buf, path->len, dtype))
893 path_exclude_check_clear(&check);
900 * This is an inexact early pruning of any recursive directory
901 * reading - if the path cannot possibly be in the pathspec,
902 * return true, and we'll skip it early.
904 static int simplify_away(const char *path, int pathlen, const struct path_simplify *simplify)
908 const char *match = simplify->path;
909 int len = simplify->len;
915 if (!memcmp(path, match, len))
925 * This function tells us whether an excluded path matches a
926 * list of "interesting" pathspecs. That is, whether a path matched
927 * by any of the pathspecs could possibly be ignored by excluding
928 * the specified path. This can happen if:
930 * 1. the path is mentioned explicitly in the pathspec
932 * 2. the path is a directory prefix of some element in the
935 static int exclude_matches_pathspec(const char *path, int len,
936 const struct path_simplify *simplify)
939 for (; simplify->path; simplify++) {
940 if (len == simplify->len
941 && !memcmp(path, simplify->path, len))
943 if (len < simplify->len
944 && simplify->path[len] == '/'
945 && !memcmp(path, simplify->path, len))
952 static int get_index_dtype(const char *path, int len)
955 struct cache_entry *ce;
957 ce = cache_name_exists(path, len, 0);
959 if (!ce_uptodate(ce))
961 if (S_ISGITLINK(ce->ce_mode))
964 * Nobody actually cares about the
965 * difference between DT_LNK and DT_REG
970 /* Try to look it up as a directory */
971 pos = cache_name_pos(path, len);
975 while (pos < active_nr) {
976 ce = active_cache[pos++];
977 if (strncmp(ce->name, path, len))
979 if (ce->name[len] > '/')
981 if (ce->name[len] < '/')
983 if (!ce_uptodate(ce))
984 break; /* continue? */
990 static int get_dtype(struct dirent *de, const char *path, int len)
992 int dtype = de ? DTYPE(de) : DT_UNKNOWN;
995 if (dtype != DT_UNKNOWN)
997 dtype = get_index_dtype(path, len);
998 if (dtype != DT_UNKNOWN)
1000 if (lstat(path, &st))
1002 if (S_ISREG(st.st_mode))
1004 if (S_ISDIR(st.st_mode))
1006 if (S_ISLNK(st.st_mode))
1011 enum path_treatment {
1017 static enum path_treatment treat_one_path(struct dir_struct *dir,
1018 struct strbuf *path,
1019 const struct path_simplify *simplify,
1020 int dtype, struct dirent *de)
1022 int exclude = excluded(dir, path->buf, &dtype);
1023 if (exclude && (dir->flags & DIR_COLLECT_IGNORED)
1024 && exclude_matches_pathspec(path->buf, path->len, simplify))
1025 dir_add_ignored(dir, path->buf, path->len);
1028 * Excluded? If we don't explicitly want to show
1029 * ignored files, ignore it
1031 if (exclude && !(dir->flags & DIR_SHOW_IGNORED))
1032 return path_ignored;
1034 if (dtype == DT_UNKNOWN)
1035 dtype = get_dtype(de, path->buf, path->len);
1039 return path_ignored;
1041 strbuf_addch(path, '/');
1043 switch (treat_directory(dir, path->buf, path->len, exclude, simplify)) {
1044 case show_directory:
1046 case recurse_into_directory:
1047 return path_recurse;
1048 case ignore_directory:
1049 return path_ignored;
1054 switch (treat_file(dir, path, exclude, &dtype)) {
1056 return path_ignored;
1061 return path_handled;
1064 static enum path_treatment treat_path(struct dir_struct *dir,
1066 struct strbuf *path,
1068 const struct path_simplify *simplify)
1072 if (is_dot_or_dotdot(de->d_name) || !strcmp(de->d_name, ".git"))
1073 return path_ignored;
1074 strbuf_setlen(path, baselen);
1075 strbuf_addstr(path, de->d_name);
1076 if (simplify_away(path->buf, path->len, simplify))
1077 return path_ignored;
1080 return treat_one_path(dir, path, simplify, dtype, de);
1084 * Read a directory tree. We currently ignore anything but
1085 * directories, regular files and symlinks. That's because git
1086 * doesn't handle them at all yet. Maybe that will change some
1089 * Also, we ignore the name ".git" (even if it is not a directory).
1090 * That likely will not change.
1092 static int read_directory_recursive(struct dir_struct *dir,
1093 const char *base, int baselen,
1095 const struct path_simplify *simplify)
1100 struct strbuf path = STRBUF_INIT;
1102 strbuf_add(&path, base, baselen);
1104 fdir = opendir(path.len ? path.buf : ".");
1108 while ((de = readdir(fdir)) != NULL) {
1109 switch (treat_path(dir, de, &path, baselen, simplify)) {
1111 contents += read_directory_recursive(dir, path.buf,
1123 dir_add_name(dir, path.buf, path.len);
1127 strbuf_release(&path);
1132 static int cmp_name(const void *p1, const void *p2)
1134 const struct dir_entry *e1 = *(const struct dir_entry **)p1;
1135 const struct dir_entry *e2 = *(const struct dir_entry **)p2;
1137 return cache_name_compare(e1->name, e1->len,
1141 static struct path_simplify *create_simplify(const char **pathspec)
1144 struct path_simplify *simplify = NULL;
1149 for (nr = 0 ; ; nr++) {
1152 alloc = alloc_nr(alloc);
1153 simplify = xrealloc(simplify, alloc * sizeof(*simplify));
1155 match = *pathspec++;
1158 simplify[nr].path = match;
1159 simplify[nr].len = simple_length(match);
1161 simplify[nr].path = NULL;
1162 simplify[nr].len = 0;
1166 static void free_simplify(struct path_simplify *simplify)
1171 static int treat_leading_path(struct dir_struct *dir,
1172 const char *path, int len,
1173 const struct path_simplify *simplify)
1175 struct strbuf sb = STRBUF_INIT;
1176 int baselen, rc = 0;
1179 while (len && path[len - 1] == '/')
1185 cp = path + baselen + !!baselen;
1186 cp = memchr(cp, '/', path + len - cp);
1190 baselen = cp - path;
1191 strbuf_setlen(&sb, 0);
1192 strbuf_add(&sb, path, baselen);
1193 if (!is_directory(sb.buf))
1195 if (simplify_away(sb.buf, sb.len, simplify))
1197 if (treat_one_path(dir, &sb, simplify,
1198 DT_DIR, NULL) == path_ignored)
1199 break; /* do not recurse into it */
1200 if (len <= baselen) {
1202 break; /* finished checking */
1205 strbuf_release(&sb);
1209 int read_directory(struct dir_struct *dir, const char *path, int len, const char **pathspec)
1211 struct path_simplify *simplify;
1213 if (has_symlink_leading_path(path, len))
1216 simplify = create_simplify(pathspec);
1217 if (!len || treat_leading_path(dir, path, len, simplify))
1218 read_directory_recursive(dir, path, len, 0, simplify);
1219 free_simplify(simplify);
1220 qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name);
1221 qsort(dir->ignored, dir->ignored_nr, sizeof(struct dir_entry *), cmp_name);
1225 int file_exists(const char *f)
1228 return lstat(f, &sb) == 0;
1232 * Given two normalized paths (a trailing slash is ok), if subdir is
1233 * outside dir, return -1. Otherwise return the offset in subdir that
1234 * can be used as relative path to dir.
1236 int dir_inside_of(const char *subdir, const char *dir)
1240 assert(dir && subdir && *dir && *subdir);
1242 while (*dir && *subdir && *dir == *subdir) {
1248 /* hel[p]/me vs hel[l]/yeah */
1249 if (*dir && *subdir)
1253 return !*dir ? offset : -1; /* same dir */
1255 /* foo/[b]ar vs foo/[] */
1256 if (is_dir_sep(dir[-1]))
1257 return is_dir_sep(subdir[-1]) ? offset : -1;
1259 /* foo[/]bar vs foo[] */
1260 return is_dir_sep(*subdir) ? offset + 1 : -1;
1263 int is_inside_dir(const char *dir)
1268 if (!getcwd(cwd, sizeof(cwd)))
1269 die_errno("can't find the current directory");
1270 return dir_inside_of(cwd, dir) >= 0;
1273 int is_empty_dir(const char *path)
1275 DIR *dir = opendir(path);
1282 while ((e = readdir(dir)) != NULL)
1283 if (!is_dot_or_dotdot(e->d_name)) {
1292 static int remove_dir_recurse(struct strbuf *path, int flag, int *kept_up)
1296 int ret = 0, original_len = path->len, len, kept_down = 0;
1297 int only_empty = (flag & REMOVE_DIR_EMPTY_ONLY);
1298 int keep_toplevel = (flag & REMOVE_DIR_KEEP_TOPLEVEL);
1299 unsigned char submodule_head[20];
1301 if ((flag & REMOVE_DIR_KEEP_NESTED_GIT) &&
1302 !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) {
1303 /* Do not descend and nuke a nested git work tree. */
1309 flag &= ~REMOVE_DIR_KEEP_TOPLEVEL;
1310 dir = opendir(path->buf);
1312 /* an empty dir could be removed even if it is unreadble */
1314 return rmdir(path->buf);
1318 if (path->buf[original_len - 1] != '/')
1319 strbuf_addch(path, '/');
1322 while ((e = readdir(dir)) != NULL) {
1324 if (is_dot_or_dotdot(e->d_name))
1327 strbuf_setlen(path, len);
1328 strbuf_addstr(path, e->d_name);
1329 if (lstat(path->buf, &st))
1331 else if (S_ISDIR(st.st_mode)) {
1332 if (!remove_dir_recurse(path, flag, &kept_down))
1333 continue; /* happy */
1334 } else if (!only_empty && !unlink(path->buf))
1335 continue; /* happy, too */
1337 /* path too long, stat fails, or non-directory still exists */
1343 strbuf_setlen(path, original_len);
1344 if (!ret && !keep_toplevel && !kept_down)
1345 ret = rmdir(path->buf);
1348 * report the uplevel that it is not an error that we
1349 * did not rmdir() our directory.
1355 int remove_dir_recursively(struct strbuf *path, int flag)
1357 return remove_dir_recurse(path, flag, NULL);
1360 void setup_standard_excludes(struct dir_struct *dir)
1365 dir->exclude_per_dir = ".gitignore";
1366 path = git_path("info/exclude");
1367 if (!excludes_file) {
1368 home_config_paths(NULL, &xdg_path, "ignore");
1369 excludes_file = xdg_path;
1371 if (!access_or_warn(path, R_OK))
1372 add_excludes_from_file(dir, path);
1373 if (excludes_file && !access_or_warn(excludes_file, R_OK))
1374 add_excludes_from_file(dir, excludes_file);
1377 int remove_path(const char *name)
1381 if (unlink(name) && errno != ENOENT)
1384 slash = strrchr(name, '/');
1386 char *dirs = xstrdup(name);
1387 slash = dirs + (slash - name);
1390 } while (rmdir(dirs) == 0 && (slash = strrchr(dirs, '/')));
1396 static int pathspec_item_cmp(const void *a_, const void *b_)
1398 struct pathspec_item *a, *b;
1400 a = (struct pathspec_item *)a_;
1401 b = (struct pathspec_item *)b_;
1402 return strcmp(a->match, b->match);
1405 int init_pathspec(struct pathspec *pathspec, const char **paths)
1407 const char **p = paths;
1410 memset(pathspec, 0, sizeof(*pathspec));
1415 pathspec->raw = paths;
1416 pathspec->nr = p - paths;
1420 pathspec->items = xmalloc(sizeof(struct pathspec_item)*pathspec->nr);
1421 for (i = 0; i < pathspec->nr; i++) {
1422 struct pathspec_item *item = pathspec->items+i;
1423 const char *path = paths[i];
1426 item->len = strlen(path);
1427 item->use_wildcard = !no_wildcard(path);
1428 if (item->use_wildcard)
1429 pathspec->has_wildcard = 1;
1432 qsort(pathspec->items, pathspec->nr,
1433 sizeof(struct pathspec_item), pathspec_item_cmp);
1438 void free_pathspec(struct pathspec *pathspec)
1440 free(pathspec->items);
1441 pathspec->items = NULL;