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
11 #include "wildmatch.h"
13 struct path_simplify {
18 static int read_directory_recursive(struct dir_struct *dir, const char *path, int len,
19 int check_only, const struct path_simplify *simplify);
20 static int get_dtype(struct dirent *de, const char *path, int len);
22 /* helper string functions with support for the ignore_case flag */
23 int strcmp_icase(const char *a, const char *b)
25 return ignore_case ? strcasecmp(a, b) : strcmp(a, b);
28 int strncmp_icase(const char *a, const char *b, size_t count)
30 return ignore_case ? strncasecmp(a, b, count) : strncmp(a, b, count);
33 int fnmatch_icase(const char *pattern, const char *string, int flags)
35 return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0));
38 inline int git_fnmatch(const char *pattern, const char *string,
39 int flags, int prefix)
42 if (flags & GFNM_PATHNAME)
43 fnm_flags |= FNM_PATHNAME;
45 if (strncmp(pattern, string, prefix))
50 if (flags & GFNM_ONESTAR) {
51 int pattern_len = strlen(++pattern);
52 int string_len = strlen(string);
53 return string_len < pattern_len ||
55 string + string_len - pattern_len);
57 return fnmatch(pattern, string, fnm_flags);
60 static size_t common_prefix_len(const char **pathspec)
62 const char *n, *first;
64 int literal = limit_pathspec_to_literal();
70 while ((n = *pathspec++)) {
72 for (i = 0; first == n || i < max; i++) {
74 if (!c || c != first[i] || (!literal && is_glob_special(c)))
79 if (first == n || len < max) {
89 * Returns a copy of the longest leading path common among all
92 char *common_prefix(const char **pathspec)
94 unsigned long len = common_prefix_len(pathspec);
96 return len ? xmemdupz(*pathspec, len) : NULL;
99 int fill_directory(struct dir_struct *dir, const char **pathspec)
104 * Calculate common prefix for the pathspec, and
105 * use that to optimize the directory walk
107 len = common_prefix_len(pathspec);
109 /* Read the directory and prune it */
110 read_directory(dir, pathspec ? *pathspec : "", len, pathspec);
114 int within_depth(const char *name, int namelen,
115 int depth, int max_depth)
117 const char *cp = name, *cpe = name + namelen;
123 if (depth > max_depth)
130 * Does 'match' match the given name?
131 * A match is found if
133 * (1) the 'match' string is leading directory of 'name', or
134 * (2) the 'match' string is a wildcard and matches 'name', or
135 * (3) the 'match' string is exactly the same as 'name'.
137 * and the return value tells which case it was.
139 * It returns 0 when there is no match.
141 static int match_one(const char *match, const char *name, int namelen)
144 int literal = limit_pathspec_to_literal();
146 /* If the match was just the prefix, we matched */
148 return MATCHED_RECURSIVELY;
152 unsigned char c1 = tolower(*match);
153 unsigned char c2 = tolower(*name);
154 if (c1 == '\0' || (!literal && is_glob_special(c1)))
164 unsigned char c1 = *match;
165 unsigned char c2 = *name;
166 if (c1 == '\0' || (!literal && is_glob_special(c1)))
177 * If we don't match the matchstring exactly,
178 * we need to match by fnmatch
180 matchlen = strlen(match);
181 if (strncmp_icase(match, name, matchlen)) {
184 return !fnmatch_icase(match, name, 0) ? MATCHED_FNMATCH : 0;
187 if (namelen == matchlen)
188 return MATCHED_EXACTLY;
189 if (match[matchlen-1] == '/' || name[matchlen] == '/')
190 return MATCHED_RECURSIVELY;
195 * Given a name and a list of pathspecs, see if the name matches
196 * any of the pathspecs. The caller is also interested in seeing
197 * all pathspec matches some names it calls this function with
198 * (otherwise the user could have mistyped the unmatched pathspec),
199 * and a mark is left in seen[] array for pathspec element that
200 * actually matched anything.
202 int match_pathspec(const char **pathspec, const char *name, int namelen,
203 int prefix, char *seen)
213 for (i = 0; pathspec[i] != NULL; i++) {
215 const char *match = pathspec[i] + prefix;
216 if (seen && seen[i] == MATCHED_EXACTLY)
218 how = match_one(match, name, namelen);
222 if (seen && seen[i] < how)
230 * Does 'match' match the given name?
231 * A match is found if
233 * (1) the 'match' string is leading directory of 'name', or
234 * (2) the 'match' string is a wildcard and matches 'name', or
235 * (3) the 'match' string is exactly the same as 'name'.
237 * and the return value tells which case it was.
239 * It returns 0 when there is no match.
241 static int match_pathspec_item(const struct pathspec_item *item, int prefix,
242 const char *name, int namelen)
244 /* name/namelen has prefix cut off by caller */
245 const char *match = item->match + prefix;
246 int matchlen = item->len - prefix;
248 /* If the match was just the prefix, we matched */
250 return MATCHED_RECURSIVELY;
252 if (matchlen <= namelen && !strncmp(match, name, matchlen)) {
253 if (matchlen == namelen)
254 return MATCHED_EXACTLY;
256 if (match[matchlen-1] == '/' || name[matchlen] == '/')
257 return MATCHED_RECURSIVELY;
260 if (item->nowildcard_len < item->len &&
261 !git_fnmatch(match, name,
262 item->flags & PATHSPEC_ONESTAR ? GFNM_ONESTAR : 0,
263 item->nowildcard_len - prefix))
264 return MATCHED_FNMATCH;
270 * Given a name and a list of pathspecs, see if the name matches
271 * any of the pathspecs. The caller is also interested in seeing
272 * all pathspec matches some names it calls this function with
273 * (otherwise the user could have mistyped the unmatched pathspec),
274 * and a mark is left in seen[] array for pathspec element that
275 * actually matched anything.
277 int match_pathspec_depth(const struct pathspec *ps,
278 const char *name, int namelen,
279 int prefix, char *seen)
284 if (!ps->recursive || ps->max_depth == -1)
285 return MATCHED_RECURSIVELY;
287 if (within_depth(name, namelen, 0, ps->max_depth))
288 return MATCHED_EXACTLY;
296 for (i = ps->nr - 1; i >= 0; i--) {
298 if (seen && seen[i] == MATCHED_EXACTLY)
300 how = match_pathspec_item(ps->items+i, prefix, name, namelen);
301 if (ps->recursive && ps->max_depth != -1 &&
302 how && how != MATCHED_FNMATCH) {
303 int len = ps->items[i].len;
304 if (name[len] == '/')
306 if (within_depth(name+len, namelen-len, 0, ps->max_depth))
307 how = MATCHED_EXACTLY;
314 if (seen && seen[i] < how)
322 * Return the length of the "simple" part of a path match limiter.
324 static int simple_length(const char *match)
329 unsigned char c = *match++;
331 if (c == '\0' || is_glob_special(c))
336 static int no_wildcard(const char *string)
338 return string[simple_length(string)] == '\0';
341 void parse_exclude_pattern(const char **pattern,
346 const char *p = *pattern;
351 *flags |= EXC_FLAG_NEGATIVE;
355 if (len && p[len - 1] == '/') {
357 *flags |= EXC_FLAG_MUSTBEDIR;
359 for (i = 0; i < len; i++) {
364 *flags |= EXC_FLAG_NODIR;
365 *nowildcardlen = simple_length(p);
367 * we should have excluded the trailing slash from 'p' too,
368 * but that's one more allocation. Instead just make sure
369 * nowildcardlen does not exceed real patternlen
371 if (*nowildcardlen > len)
372 *nowildcardlen = len;
373 if (*p == '*' && no_wildcard(p + 1))
374 *flags |= EXC_FLAG_ENDSWITH;
379 void add_exclude(const char *string, const char *base,
380 int baselen, struct exclude_list *which)
387 parse_exclude_pattern(&string, &patternlen, &flags, &nowildcardlen);
388 if (flags & EXC_FLAG_MUSTBEDIR) {
390 x = xmalloc(sizeof(*x) + patternlen + 1);
392 memcpy(s, string, patternlen);
393 s[patternlen] = '\0';
396 x = xmalloc(sizeof(*x));
399 x->patternlen = patternlen;
400 x->nowildcardlen = nowildcardlen;
402 x->baselen = baselen;
404 ALLOC_GROW(which->excludes, which->nr + 1, which->alloc);
405 which->excludes[which->nr++] = x;
408 static void *read_skip_worktree_file_from_index(const char *path, size_t *size)
412 enum object_type type;
414 struct index_state *istate = &the_index;
417 pos = index_name_pos(istate, path, len);
420 if (!ce_skip_worktree(istate->cache[pos]))
422 data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz);
423 if (!data || type != OBJ_BLOB) {
431 void free_excludes(struct exclude_list *el)
435 for (i = 0; i < el->nr; i++)
436 free(el->excludes[i]);
443 int add_excludes_from_file_to_list(const char *fname,
447 struct exclude_list *which,
455 fd = open(fname, O_RDONLY);
456 if (fd < 0 || fstat(fd, &st) < 0) {
458 warn_on_inaccessible(fname);
462 (buf = read_skip_worktree_file_from_index(fname, &size)) == NULL)
468 if (buf[size-1] != '\n') {
469 buf = xrealloc(buf, size+1);
474 size = xsize_t(st.st_size);
479 buf = xmalloc(size+1);
480 if (read_in_full(fd, buf, size) != size) {
492 for (i = 0; i < size; i++) {
493 if (buf[i] == '\n') {
494 if (entry != buf + i && entry[0] != '#') {
495 buf[i - (i && buf[i-1] == '\r')] = 0;
496 add_exclude(entry, base, baselen, which);
504 void add_excludes_from_file(struct dir_struct *dir, const char *fname)
506 if (add_excludes_from_file_to_list(fname, "", 0, NULL,
507 &dir->exclude_list[EXC_FILE], 0) < 0)
508 die("cannot use %s as an exclude file", fname);
511 static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
513 struct exclude_list *el;
514 struct exclude_stack *stk = NULL;
517 if ((!dir->exclude_per_dir) ||
518 (baselen + strlen(dir->exclude_per_dir) >= PATH_MAX))
519 return; /* too long a path -- ignore */
521 /* Pop the ones that are not the prefix of the path being checked. */
522 el = &dir->exclude_list[EXC_DIRS];
523 while ((stk = dir->exclude_stack) != NULL) {
524 if (stk->baselen <= baselen &&
525 !strncmp(dir->basebuf, base, stk->baselen))
527 dir->exclude_stack = stk->prev;
528 while (stk->exclude_ix < el->nr)
529 free(el->excludes[--el->nr]);
534 /* Read from the parent directories and push them down. */
535 current = stk ? stk->baselen : -1;
536 while (current < baselen) {
537 struct exclude_stack *stk = xcalloc(1, sizeof(*stk));
545 cp = strchr(base + current + 1, '/');
547 die("oops in prep_exclude");
550 stk->prev = dir->exclude_stack;
551 stk->baselen = cp - base;
552 stk->exclude_ix = el->nr;
553 memcpy(dir->basebuf + current, base + current,
554 stk->baselen - current);
555 strcpy(dir->basebuf + stk->baselen, dir->exclude_per_dir);
556 add_excludes_from_file_to_list(dir->basebuf,
557 dir->basebuf, stk->baselen,
558 &stk->filebuf, el, 1);
559 dir->exclude_stack = stk;
560 current = stk->baselen;
562 dir->basebuf[baselen] = '\0';
565 int match_basename(const char *basename, int basenamelen,
566 const char *pattern, int prefix, int patternlen,
569 if (prefix == patternlen) {
570 if (!strcmp_icase(pattern, basename))
572 } else if (flags & EXC_FLAG_ENDSWITH) {
573 if (patternlen - 1 <= basenamelen &&
574 !strcmp_icase(pattern + 1,
575 basename + basenamelen - patternlen + 1))
578 if (fnmatch_icase(pattern, basename, 0) == 0)
584 int match_pathname(const char *pathname, int pathlen,
585 const char *base, int baselen,
586 const char *pattern, int prefix, int patternlen,
593 * match with FNM_PATHNAME; the pattern has base implicitly
596 if (*pattern == '/') {
602 * baselen does not count the trailing slash. base[] may or
603 * may not end with a trailing slash though.
605 if (pathlen < baselen + 1 ||
606 (baselen && pathname[baselen] != '/') ||
607 strncmp_icase(pathname, base, baselen))
610 namelen = baselen ? pathlen - baselen - 1 : pathlen;
611 name = pathname + pathlen - namelen;
615 * if the non-wildcard part is longer than the
616 * remaining pathname, surely it cannot match.
618 if (prefix > namelen)
621 if (strncmp_icase(pattern, name, prefix))
628 return wildmatch(pattern, name,
629 ignore_case ? FNM_CASEFOLD : 0) == 0;
632 /* Scan the list and let the last match determine the fate.
633 * Return 1 for exclude, 0 for include and -1 for undecided.
635 int excluded_from_list(const char *pathname,
636 int pathlen, const char *basename, int *dtype,
637 struct exclude_list *el)
642 return -1; /* undefined */
644 for (i = el->nr - 1; 0 <= i; i--) {
645 struct exclude *x = el->excludes[i];
646 const char *exclude = x->pattern;
647 int to_exclude = x->flags & EXC_FLAG_NEGATIVE ? 0 : 1;
648 int prefix = x->nowildcardlen;
650 if (x->flags & EXC_FLAG_MUSTBEDIR) {
651 if (*dtype == DT_UNKNOWN)
652 *dtype = get_dtype(NULL, pathname, pathlen);
653 if (*dtype != DT_DIR)
657 if (x->flags & EXC_FLAG_NODIR) {
658 if (match_basename(basename,
659 pathlen - (basename - pathname),
660 exclude, prefix, x->patternlen,
666 assert(x->baselen == 0 || x->base[x->baselen - 1] == '/');
667 if (match_pathname(pathname, pathlen,
668 x->base, x->baselen ? x->baselen - 1 : 0,
669 exclude, prefix, x->patternlen, x->flags))
672 return -1; /* undecided */
675 static int excluded(struct dir_struct *dir, const char *pathname, int *dtype_p)
677 int pathlen = strlen(pathname);
679 const char *basename = strrchr(pathname, '/');
680 basename = (basename) ? basename+1 : pathname;
682 prep_exclude(dir, pathname, basename-pathname);
683 for (st = EXC_CMDL; st <= EXC_FILE; st++) {
684 switch (excluded_from_list(pathname, pathlen, basename,
685 dtype_p, &dir->exclude_list[st])) {
695 void path_exclude_check_init(struct path_exclude_check *check,
696 struct dir_struct *dir)
699 strbuf_init(&check->path, 256);
702 void path_exclude_check_clear(struct path_exclude_check *check)
704 strbuf_release(&check->path);
708 * Is this name excluded? This is for a caller like show_files() that
709 * do not honor directory hierarchy and iterate through paths that are
710 * possibly in an ignored directory.
712 * A path to a directory known to be excluded is left in check->path to
713 * optimize for repeated checks for files in the same excluded directory.
715 int path_excluded(struct path_exclude_check *check,
716 const char *name, int namelen, int *dtype)
719 struct strbuf *path = &check->path;
722 * we allow the caller to pass namelen as an optimization; it
723 * must match the length of the name, as we eventually call
724 * excluded() on the whole name string.
727 namelen = strlen(name);
730 path->len <= namelen &&
731 !memcmp(name, path->buf, path->len) &&
732 (!name[path->len] || name[path->len] == '/'))
735 strbuf_setlen(path, 0);
736 for (i = 0; name[i]; i++) {
741 if (excluded(check->dir, path->buf, &dt))
744 strbuf_addch(path, ch);
747 /* An entry in the index; cannot be a directory with subentries */
748 strbuf_setlen(path, 0);
750 return excluded(check->dir, name, dtype);
753 static struct dir_entry *dir_entry_new(const char *pathname, int len)
755 struct dir_entry *ent;
757 ent = xmalloc(sizeof(*ent) + len + 1);
759 memcpy(ent->name, pathname, len);
764 static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len)
766 if (cache_name_exists(pathname, len, ignore_case))
769 ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc);
770 return dir->entries[dir->nr++] = dir_entry_new(pathname, len);
773 struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len)
775 if (!cache_name_is_other(pathname, len))
778 ALLOC_GROW(dir->ignored, dir->ignored_nr+1, dir->ignored_alloc);
779 return dir->ignored[dir->ignored_nr++] = dir_entry_new(pathname, len);
783 index_nonexistent = 0,
789 * Do not use the alphabetically stored index to look up
790 * the directory name; instead, use the case insensitive
793 static enum exist_status directory_exists_in_index_icase(const char *dirname, int len)
795 struct cache_entry *ce = index_name_exists(&the_index, dirname, len + 1, ignore_case);
796 unsigned char endchar;
799 return index_nonexistent;
800 endchar = ce->name[len];
803 * The cache_entry structure returned will contain this dirname
804 * and possibly additional path components.
807 return index_directory;
810 * If there are no additional path components, then this cache_entry
811 * represents a submodule. Submodules, despite being directories,
812 * are stored in the cache without a closing slash.
814 if (!endchar && S_ISGITLINK(ce->ce_mode))
817 /* This should never be hit, but it exists just in case. */
818 return index_nonexistent;
822 * The index sorts alphabetically by entry name, which
823 * means that a gitlink sorts as '\0' at the end, while
824 * a directory (which is defined not as an entry, but as
825 * the files it contains) will sort with the '/' at the
828 static enum exist_status directory_exists_in_index(const char *dirname, int len)
833 return directory_exists_in_index_icase(dirname, len);
835 pos = cache_name_pos(dirname, len);
838 while (pos < active_nr) {
839 struct cache_entry *ce = active_cache[pos++];
840 unsigned char endchar;
842 if (strncmp(ce->name, dirname, len))
844 endchar = ce->name[len];
848 return index_directory;
849 if (!endchar && S_ISGITLINK(ce->ce_mode))
852 return index_nonexistent;
856 * When we find a directory when traversing the filesystem, we
857 * have three distinct cases:
860 * - see it as a directory
863 * and which one we choose depends on a combination of existing
864 * git index contents and the flags passed into the directory
867 * Case 1: If we *already* have entries in the index under that
868 * directory name, we always recurse into the directory to see
871 * Case 2: If we *already* have that directory name as a gitlink,
872 * we always continue to see it as a gitlink, regardless of whether
873 * there is an actual git directory there or not (it might not
874 * be checked out as a subproject!)
876 * Case 3: if we didn't have it in the index previously, we
877 * have a few sub-cases:
879 * (a) if "show_other_directories" is true, we show it as
880 * just a directory, unless "hide_empty_directories" is
881 * also true and the directory is empty, in which case
882 * we just ignore it entirely.
883 * (b) if it looks like a git directory, and we don't have
884 * 'no_gitlinks' set we treat it as a gitlink, and show it
886 * (c) otherwise, we recurse into it.
888 enum directory_treatment {
891 recurse_into_directory
894 static enum directory_treatment treat_directory(struct dir_struct *dir,
895 const char *dirname, int len,
896 const struct path_simplify *simplify)
898 /* The "len-1" is to strip the final '/' */
899 switch (directory_exists_in_index(dirname, len-1)) {
900 case index_directory:
901 return recurse_into_directory;
904 if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES)
905 return ignore_directory;
906 return show_directory;
908 case index_nonexistent:
909 if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES)
911 if (!(dir->flags & DIR_NO_GITLINKS)) {
912 unsigned char sha1[20];
913 if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0)
914 return show_directory;
916 return recurse_into_directory;
919 /* This is the "show_other_directories" case */
920 if (!(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES))
921 return show_directory;
922 if (!read_directory_recursive(dir, dirname, len, 1, simplify))
923 return ignore_directory;
924 return show_directory;
928 * This is an inexact early pruning of any recursive directory
929 * reading - if the path cannot possibly be in the pathspec,
930 * return true, and we'll skip it early.
932 static int simplify_away(const char *path, int pathlen, const struct path_simplify *simplify)
936 const char *match = simplify->path;
937 int len = simplify->len;
943 if (!memcmp(path, match, len))
953 * This function tells us whether an excluded path matches a
954 * list of "interesting" pathspecs. That is, whether a path matched
955 * by any of the pathspecs could possibly be ignored by excluding
956 * the specified path. This can happen if:
958 * 1. the path is mentioned explicitly in the pathspec
960 * 2. the path is a directory prefix of some element in the
963 static int exclude_matches_pathspec(const char *path, int len,
964 const struct path_simplify *simplify)
967 for (; simplify->path; simplify++) {
968 if (len == simplify->len
969 && !memcmp(path, simplify->path, len))
971 if (len < simplify->len
972 && simplify->path[len] == '/'
973 && !memcmp(path, simplify->path, len))
980 static int get_index_dtype(const char *path, int len)
983 struct cache_entry *ce;
985 ce = cache_name_exists(path, len, 0);
987 if (!ce_uptodate(ce))
989 if (S_ISGITLINK(ce->ce_mode))
992 * Nobody actually cares about the
993 * difference between DT_LNK and DT_REG
998 /* Try to look it up as a directory */
999 pos = cache_name_pos(path, len);
1003 while (pos < active_nr) {
1004 ce = active_cache[pos++];
1005 if (strncmp(ce->name, path, len))
1007 if (ce->name[len] > '/')
1009 if (ce->name[len] < '/')
1011 if (!ce_uptodate(ce))
1012 break; /* continue? */
1018 static int get_dtype(struct dirent *de, const char *path, int len)
1020 int dtype = de ? DTYPE(de) : DT_UNKNOWN;
1023 if (dtype != DT_UNKNOWN)
1025 dtype = get_index_dtype(path, len);
1026 if (dtype != DT_UNKNOWN)
1028 if (lstat(path, &st))
1030 if (S_ISREG(st.st_mode))
1032 if (S_ISDIR(st.st_mode))
1034 if (S_ISLNK(st.st_mode))
1039 enum path_treatment {
1045 static enum path_treatment treat_one_path(struct dir_struct *dir,
1046 struct strbuf *path,
1047 const struct path_simplify *simplify,
1048 int dtype, struct dirent *de)
1050 int exclude = excluded(dir, path->buf, &dtype);
1051 if (exclude && (dir->flags & DIR_COLLECT_IGNORED)
1052 && exclude_matches_pathspec(path->buf, path->len, simplify))
1053 dir_add_ignored(dir, path->buf, path->len);
1056 * Excluded? If we don't explicitly want to show
1057 * ignored files, ignore it
1059 if (exclude && !(dir->flags & DIR_SHOW_IGNORED))
1060 return path_ignored;
1062 if (dtype == DT_UNKNOWN)
1063 dtype = get_dtype(de, path->buf, path->len);
1066 * Do we want to see just the ignored files?
1067 * We still need to recurse into directories,
1068 * even if we don't ignore them, since the
1069 * directory may contain files that we do..
1071 if (!exclude && (dir->flags & DIR_SHOW_IGNORED)) {
1072 if (dtype != DT_DIR)
1073 return path_ignored;
1078 return path_ignored;
1080 strbuf_addch(path, '/');
1081 switch (treat_directory(dir, path->buf, path->len, simplify)) {
1082 case show_directory:
1083 if (exclude != !!(dir->flags
1084 & DIR_SHOW_IGNORED))
1085 return path_ignored;
1087 case recurse_into_directory:
1088 return path_recurse;
1089 case ignore_directory:
1090 return path_ignored;
1097 return path_handled;
1100 static enum path_treatment treat_path(struct dir_struct *dir,
1102 struct strbuf *path,
1104 const struct path_simplify *simplify)
1108 if (is_dot_or_dotdot(de->d_name) || !strcmp(de->d_name, ".git"))
1109 return path_ignored;
1110 strbuf_setlen(path, baselen);
1111 strbuf_addstr(path, de->d_name);
1112 if (simplify_away(path->buf, path->len, simplify))
1113 return path_ignored;
1116 return treat_one_path(dir, path, simplify, dtype, de);
1120 * Read a directory tree. We currently ignore anything but
1121 * directories, regular files and symlinks. That's because git
1122 * doesn't handle them at all yet. Maybe that will change some
1125 * Also, we ignore the name ".git" (even if it is not a directory).
1126 * That likely will not change.
1128 static int read_directory_recursive(struct dir_struct *dir,
1129 const char *base, int baselen,
1131 const struct path_simplify *simplify)
1136 struct strbuf path = STRBUF_INIT;
1138 strbuf_add(&path, base, baselen);
1140 fdir = opendir(path.len ? path.buf : ".");
1144 while ((de = readdir(fdir)) != NULL) {
1145 switch (treat_path(dir, de, &path, baselen, simplify)) {
1147 contents += read_directory_recursive(dir, path.buf,
1159 dir_add_name(dir, path.buf, path.len);
1163 strbuf_release(&path);
1168 static int cmp_name(const void *p1, const void *p2)
1170 const struct dir_entry *e1 = *(const struct dir_entry **)p1;
1171 const struct dir_entry *e2 = *(const struct dir_entry **)p2;
1173 return cache_name_compare(e1->name, e1->len,
1177 static struct path_simplify *create_simplify(const char **pathspec)
1180 struct path_simplify *simplify = NULL;
1185 for (nr = 0 ; ; nr++) {
1188 alloc = alloc_nr(alloc);
1189 simplify = xrealloc(simplify, alloc * sizeof(*simplify));
1191 match = *pathspec++;
1194 simplify[nr].path = match;
1195 simplify[nr].len = simple_length(match);
1197 simplify[nr].path = NULL;
1198 simplify[nr].len = 0;
1202 static void free_simplify(struct path_simplify *simplify)
1207 static int treat_leading_path(struct dir_struct *dir,
1208 const char *path, int len,
1209 const struct path_simplify *simplify)
1211 struct strbuf sb = STRBUF_INIT;
1212 int baselen, rc = 0;
1215 while (len && path[len - 1] == '/')
1221 cp = path + baselen + !!baselen;
1222 cp = memchr(cp, '/', path + len - cp);
1226 baselen = cp - path;
1227 strbuf_setlen(&sb, 0);
1228 strbuf_add(&sb, path, baselen);
1229 if (!is_directory(sb.buf))
1231 if (simplify_away(sb.buf, sb.len, simplify))
1233 if (treat_one_path(dir, &sb, simplify,
1234 DT_DIR, NULL) == path_ignored)
1235 break; /* do not recurse into it */
1236 if (len <= baselen) {
1238 break; /* finished checking */
1241 strbuf_release(&sb);
1245 int read_directory(struct dir_struct *dir, const char *path, int len, const char **pathspec)
1247 struct path_simplify *simplify;
1249 if (has_symlink_leading_path(path, len))
1252 simplify = create_simplify(pathspec);
1253 if (!len || treat_leading_path(dir, path, len, simplify))
1254 read_directory_recursive(dir, path, len, 0, simplify);
1255 free_simplify(simplify);
1256 qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name);
1257 qsort(dir->ignored, dir->ignored_nr, sizeof(struct dir_entry *), cmp_name);
1261 int file_exists(const char *f)
1264 return lstat(f, &sb) == 0;
1268 * Given two normalized paths (a trailing slash is ok), if subdir is
1269 * outside dir, return -1. Otherwise return the offset in subdir that
1270 * can be used as relative path to dir.
1272 int dir_inside_of(const char *subdir, const char *dir)
1276 assert(dir && subdir && *dir && *subdir);
1278 while (*dir && *subdir && *dir == *subdir) {
1284 /* hel[p]/me vs hel[l]/yeah */
1285 if (*dir && *subdir)
1289 return !*dir ? offset : -1; /* same dir */
1291 /* foo/[b]ar vs foo/[] */
1292 if (is_dir_sep(dir[-1]))
1293 return is_dir_sep(subdir[-1]) ? offset : -1;
1295 /* foo[/]bar vs foo[] */
1296 return is_dir_sep(*subdir) ? offset + 1 : -1;
1299 int is_inside_dir(const char *dir)
1304 if (!getcwd(cwd, sizeof(cwd)))
1305 die_errno("can't find the current directory");
1306 return dir_inside_of(cwd, dir) >= 0;
1309 int is_empty_dir(const char *path)
1311 DIR *dir = opendir(path);
1318 while ((e = readdir(dir)) != NULL)
1319 if (!is_dot_or_dotdot(e->d_name)) {
1328 static int remove_dir_recurse(struct strbuf *path, int flag, int *kept_up)
1332 int ret = 0, original_len = path->len, len, kept_down = 0;
1333 int only_empty = (flag & REMOVE_DIR_EMPTY_ONLY);
1334 int keep_toplevel = (flag & REMOVE_DIR_KEEP_TOPLEVEL);
1335 unsigned char submodule_head[20];
1337 if ((flag & REMOVE_DIR_KEEP_NESTED_GIT) &&
1338 !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) {
1339 /* Do not descend and nuke a nested git work tree. */
1345 flag &= ~REMOVE_DIR_KEEP_TOPLEVEL;
1346 dir = opendir(path->buf);
1348 /* an empty dir could be removed even if it is unreadble */
1350 return rmdir(path->buf);
1354 if (path->buf[original_len - 1] != '/')
1355 strbuf_addch(path, '/');
1358 while ((e = readdir(dir)) != NULL) {
1360 if (is_dot_or_dotdot(e->d_name))
1363 strbuf_setlen(path, len);
1364 strbuf_addstr(path, e->d_name);
1365 if (lstat(path->buf, &st))
1367 else if (S_ISDIR(st.st_mode)) {
1368 if (!remove_dir_recurse(path, flag, &kept_down))
1369 continue; /* happy */
1370 } else if (!only_empty && !unlink(path->buf))
1371 continue; /* happy, too */
1373 /* path too long, stat fails, or non-directory still exists */
1379 strbuf_setlen(path, original_len);
1380 if (!ret && !keep_toplevel && !kept_down)
1381 ret = rmdir(path->buf);
1384 * report the uplevel that it is not an error that we
1385 * did not rmdir() our directory.
1391 int remove_dir_recursively(struct strbuf *path, int flag)
1393 return remove_dir_recurse(path, flag, NULL);
1396 void setup_standard_excludes(struct dir_struct *dir)
1401 dir->exclude_per_dir = ".gitignore";
1402 path = git_path("info/exclude");
1403 if (!excludes_file) {
1404 home_config_paths(NULL, &xdg_path, "ignore");
1405 excludes_file = xdg_path;
1407 if (!access_or_warn(path, R_OK))
1408 add_excludes_from_file(dir, path);
1409 if (excludes_file && !access_or_warn(excludes_file, R_OK))
1410 add_excludes_from_file(dir, excludes_file);
1413 int remove_path(const char *name)
1417 if (unlink(name) && errno != ENOENT)
1420 slash = strrchr(name, '/');
1422 char *dirs = xstrdup(name);
1423 slash = dirs + (slash - name);
1426 } while (rmdir(dirs) == 0 && (slash = strrchr(dirs, '/')));
1432 static int pathspec_item_cmp(const void *a_, const void *b_)
1434 struct pathspec_item *a, *b;
1436 a = (struct pathspec_item *)a_;
1437 b = (struct pathspec_item *)b_;
1438 return strcmp(a->match, b->match);
1441 int init_pathspec(struct pathspec *pathspec, const char **paths)
1443 const char **p = paths;
1446 memset(pathspec, 0, sizeof(*pathspec));
1451 pathspec->raw = paths;
1452 pathspec->nr = p - paths;
1456 pathspec->items = xmalloc(sizeof(struct pathspec_item)*pathspec->nr);
1457 for (i = 0; i < pathspec->nr; i++) {
1458 struct pathspec_item *item = pathspec->items+i;
1459 const char *path = paths[i];
1462 item->len = strlen(path);
1464 if (limit_pathspec_to_literal()) {
1465 item->nowildcard_len = item->len;
1467 item->nowildcard_len = simple_length(path);
1468 if (item->nowildcard_len < item->len) {
1469 pathspec->has_wildcard = 1;
1470 if (path[item->nowildcard_len] == '*' &&
1471 no_wildcard(path + item->nowildcard_len + 1))
1472 item->flags |= PATHSPEC_ONESTAR;
1477 qsort(pathspec->items, pathspec->nr,
1478 sizeof(struct pathspec_item), pathspec_item_cmp);
1483 void free_pathspec(struct pathspec *pathspec)
1485 free(pathspec->items);
1486 pathspec->items = NULL;
1489 int limit_pathspec_to_literal(void)
1491 static int flag = -1;
1493 flag = git_env_bool(GIT_LITERAL_PATHSPECS_ENVIRONMENT, 0);