Function do_match

tree-walk.c:1021–1215

* Is a tree entry interesting given the pathspec we have? * * Pre-condition: either baselen == 0 (i.e. empty path) * or base[baselen-1] == '/' (i.e. with trailing slash). */

 * or base[baselen-1] == '/' (i.e. with trailing slash).
 */
static enum interesting do_match(struct index_state *istate,
				 const struct name_entry *entry,
				 struct strbuf *base,
				 const struct pathspec *ps,
				 int exclude)
{
	int i;
	int pathlen, baselen = base->len;
	enum interesting never_interesting = ps->has_wildcard ?
		entry_not_interesting : all_entries_not_interesting;

	GUARD_PATHSPEC(ps,
		       PATHSPEC_FROMTOP |
		       PATHSPEC_MAXDEPTH |
		       PATHSPEC_LITERAL |
		       PATHSPEC_GLOB |
		       PATHSPEC_ICASE |
		       PATHSPEC_EXCLUDE |
		       PATHSPEC_ATTR);

	if (!ps->nr) {
		if (!ps->recursive ||
		    !(ps->magic & PATHSPEC_MAXDEPTH) ||
		    ps->max_depth == -1)
			return all_entries_interesting;
		return within_depth(base->buf, baselen,
				    !!S_ISDIR(entry->mode),
				    ps->max_depth) ?
			entry_interesting : entry_not_interesting;
	}

	pathlen = tree_entry_len(entry);

	for (i = ps->nr - 1; i >= 0; i--) {
		const struct pathspec_item *item = ps->items+i;
		const char *match = item->match;
		const char *base_str = base->buf;
		int matchlen = item->len, matched = 0;

		if ((!exclude &&   item->magic & PATHSPEC_EXCLUDE) ||
		    ( exclude && !(item->magic & PATHSPEC_EXCLUDE)))
			continue;

		if (baselen >= matchlen) {
			/* If it doesn't match, move along... */
			if (!match_dir_prefix(item, base_str, match, matchlen))
				goto match_wildcards;

			if (!ps->recursive ||
			    !(ps->magic & PATHSPEC_MAXDEPTH) ||
			    ps->max_depth == -1) {
				if (!item->attr_match_nr)
					return all_entries_interesting;
				else
					goto interesting;
			}

			if (within_depth(base_str + matchlen + 1,