return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0));
}
-static int common_prefix(const char **pathspec)
+static size_t common_prefix_len(const char **pathspec)
{
- const char *path, *slash, *next;
- int prefix;
+ const char *n, *first;
+ size_t max = 0;
if (!pathspec)
- return 0;
+ return max;
+
+ first = *pathspec;
+ while ((n = *pathspec++)) {
+ size_t i, len = 0;
+ for (i = 0; first == n || i < max; i++) {
+ char c = n[i];
+ if (!c || c != first[i] || is_glob_special(c))
+ break;
+ if (c == '/')
+ len = i + 1;
+ }
+ if (first == n || len < max) {
+ max = len;
+ if (!max)
+ break;
+ }
+ }
+ return max;
+}
- path = *pathspec;
- slash = strrchr(path, '/');
- if (!slash)
- return 0;
+/*
+ * Returns a copy of the longest leading path common among all
+ * pathspecs.
+ */
+char *common_prefix(const char **pathspec)
+{
+ unsigned long len = common_prefix_len(pathspec);
- /*
- * The first 'prefix' characters of 'path' are common leading
- * path components among the pathspecs we have seen so far,
- * including the trailing slash.
- */
- prefix = slash - path + 1;
- while ((next = *++pathspec) != NULL) {
- int len, last_matching_slash = -1;
- for (len = 0; len < prefix && next[len] == path[len]; len++)
- if (next[len] == '/')
- last_matching_slash = len;
- if (len == prefix)
- continue;
- if (last_matching_slash < 0)
- return 0;
- prefix = last_matching_slash + 1;
- }
- return prefix;
+ return len ? xmemdupz(*pathspec, len) : NULL;
}
int fill_directory(struct dir_struct *dir, const char **pathspec)
{
const char *path;
- int len;
+ size_t len;
/*
* Calculate common prefix for the pathspec, and
* use that to optimize the directory walk
*/
- len = common_prefix(pathspec);
+ len = common_prefix_len(pathspec);
path = "";
if (len)
/* Read the directory and prune it */
read_directory(dir, path, len, pathspec);
+ if (*path)
+ free((char *)path);
return len;
}
+int within_depth(const char *name, int namelen,
+ int depth, int max_depth)
+{
+ const char *cp = name, *cpe = name + namelen;
+
+ while (cp < cpe) {
+ if (*cp++ != '/')
+ continue;
+ depth++;
+ if (depth > max_depth)
+ return 0;
+ }
+ return 1;
+}
+
/*
* Does 'match' match the given name?
* A match is found if
return retval;
}
+/*
+ * Does 'match' match the given name?
+ * A match is found if
+ *
+ * (1) the 'match' string is leading directory of 'name', or
+ * (2) the 'match' string is a wildcard and matches 'name', or
+ * (3) the 'match' string is exactly the same as 'name'.
+ *
+ * and the return value tells which case it was.
+ *
+ * It returns 0 when there is no match.
+ */
+static int match_pathspec_item(const struct pathspec_item *item, int prefix,
+ const char *name, int namelen)
+{
+ /* name/namelen has prefix cut off by caller */
+ const char *match = item->match + prefix;
+ int matchlen = item->len - prefix;
+
+ /* If the match was just the prefix, we matched */
+ if (!*match)
+ return MATCHED_RECURSIVELY;
+
+ if (matchlen <= namelen && !strncmp(match, name, matchlen)) {
+ if (matchlen == namelen)
+ return MATCHED_EXACTLY;
+
+ if (match[matchlen-1] == '/' || name[matchlen] == '/')
+ return MATCHED_RECURSIVELY;
+ }
+
+ if (item->use_wildcard && !fnmatch(match, name, 0))
+ return MATCHED_FNMATCH;
+
+ return 0;
+}
+
+/*
+ * Given a name and a list of pathspecs, see if the name matches
+ * any of the pathspecs. The caller is also interested in seeing
+ * all pathspec matches some names it calls this function with
+ * (otherwise the user could have mistyped the unmatched pathspec),
+ * and a mark is left in seen[] array for pathspec element that
+ * actually matched anything.
+ */
+int match_pathspec_depth(const struct pathspec *ps,
+ const char *name, int namelen,
+ int prefix, char *seen)
+{
+ int i, retval = 0;
+
+ if (!ps->nr) {
+ if (!ps->recursive || ps->max_depth == -1)
+ return MATCHED_RECURSIVELY;
+
+ if (within_depth(name, namelen, 0, ps->max_depth))
+ return MATCHED_EXACTLY;
+ else
+ return 0;
+ }
+
+ name += prefix;
+ namelen -= prefix;
+
+ for (i = ps->nr - 1; i >= 0; i--) {
+ int how;
+ if (seen && seen[i] == MATCHED_EXACTLY)
+ continue;
+ how = match_pathspec_item(ps->items+i, prefix, name, namelen);
+ if (ps->recursive && ps->max_depth != -1 &&
+ how && how != MATCHED_FNMATCH) {
+ int len = ps->items[i].len;
+ if (name[len] == '/')
+ len++;
+ if (within_depth(name+len, namelen-len, 0, ps->max_depth))
+ how = MATCHED_EXACTLY;
+ else
+ how = 0;
+ }
+ if (how) {
+ if (retval < how)
+ retval = how;
+ if (seen && seen[i] < how)
+ seen[i] = how;
+ }
+ }
+ return retval;
+}
+
static int no_wildcard(const char *string)
{
return string[strcspn(string, "*?[{\\")] == '\0';
}
/*
- * get_relative_cwd() gets the prefix of the current working directory
- * relative to 'dir'. If we are not inside 'dir', it returns NULL.
- *
- * As a convenience, it also returns NULL if 'dir' is already NULL. The
- * reason for this behaviour is that it is natural for functions returning
- * directory names to return NULL to say "this directory does not exist"
- * or "this directory is invalid". These cases are usually handled the
- * same as if the cwd is not inside 'dir' at all, so get_relative_cwd()
- * returns NULL for both of them.
- *
- * Most notably, get_relative_cwd(buffer, size, get_git_work_tree())
- * unifies the handling of "outside work tree" with "no work tree at all".
+ * Given two normalized paths (a trailing slash is ok), if subdir is
+ * outside dir, return -1. Otherwise return the offset in subdir that
+ * can be used as relative path to dir.
*/
-char *get_relative_cwd(char *buffer, int size, const char *dir)
+int dir_inside_of(const char *subdir, const char *dir)
{
- char *cwd = buffer;
+ int offset = 0;
- if (!dir)
- return NULL;
- if (!getcwd(buffer, size))
- die_errno("can't find the current directory");
-
- if (!is_absolute_path(dir))
- dir = make_absolute_path(dir);
+ assert(dir && subdir && *dir && *subdir);
- while (*dir && *dir == *cwd) {
+ while (*dir && *subdir && *dir == *subdir) {
dir++;
- cwd++;
- }
- if (*dir)
- return NULL;
- switch (*cwd) {
- case '\0':
- return cwd;
- case '/':
- return cwd + 1;
- default:
- /*
- * dir can end with a path separator when it's root
- * directory. Return proper prefix in that case.
- */
- if (dir[-1] == '/')
- return cwd;
- return NULL;
+ subdir++;
+ offset++;
}
+
+ /* hel[p]/me vs hel[l]/yeah */
+ if (*dir && *subdir)
+ return -1;
+
+ if (!*subdir)
+ return !*dir ? offset : -1; /* same dir */
+
+ /* foo/[b]ar vs foo/[] */
+ if (is_dir_sep(dir[-1]))
+ return is_dir_sep(subdir[-1]) ? offset : -1;
+
+ /* foo[/]bar vs foo[] */
+ return is_dir_sep(*subdir) ? offset + 1 : -1;
}
int is_inside_dir(const char *dir)
{
- char buffer[PATH_MAX];
- return get_relative_cwd(buffer, sizeof(buffer), dir) != NULL;
+ char cwd[PATH_MAX];
+ if (!dir)
+ return 0;
+ if (!getcwd(cwd, sizeof(cwd)))
+ die_errno("can't find the current directory");
+ return dir_inside_of(cwd, dir) >= 0;
}
int is_empty_dir(const char *path)
dir = opendir(path->buf);
if (!dir)
- return -1;
+ return rmdir(path->buf);
if (path->buf[original_len - 1] != '/')
strbuf_addch(path, '/');
return 0;
}
+static int pathspec_item_cmp(const void *a_, const void *b_)
+{
+ struct pathspec_item *a, *b;
+
+ a = (struct pathspec_item *)a_;
+ b = (struct pathspec_item *)b_;
+ return strcmp(a->match, b->match);
+}
+
+int init_pathspec(struct pathspec *pathspec, const char **paths)
+{
+ const char **p = paths;
+ int i;
+
+ memset(pathspec, 0, sizeof(*pathspec));
+ if (!p)
+ return 0;
+ while (*p)
+ p++;
+ pathspec->raw = paths;
+ pathspec->nr = p - paths;
+ if (!pathspec->nr)
+ return 0;
+
+ pathspec->items = xmalloc(sizeof(struct pathspec_item)*pathspec->nr);
+ for (i = 0; i < pathspec->nr; i++) {
+ struct pathspec_item *item = pathspec->items+i;
+ const char *path = paths[i];
+
+ item->match = path;
+ item->len = strlen(path);
+ item->use_wildcard = !no_wildcard(path);
+ if (item->use_wildcard)
+ pathspec->has_wildcard = 1;
+ }
+
+ qsort(pathspec->items, pathspec->nr,
+ sizeof(struct pathspec_item), pathspec_item_cmp);
+
+ return 0;
+}
+
+void free_pathspec(struct pathspec *pathspec)
+{
+ free(pathspec->items);
+ pathspec->items = NULL;
+}