attr: avoid strlen() on every match

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/attr.c b/attr.c
index 303751f6c2bd4d558cffbb928c636581efb2b310..56673dd7713c04a30fc817e88b3ce478a4aa1124 100644 (file)
--- a/attr.c
+++ b/attr.c
@@ -277,6 +277,7 @@ static struct match_attr *parse_attr_line(const char *line, const char *src,
 static struct attr_stack {
        struct attr_stack *prev;
        char *origin;
+       size_t originlen;
        unsigned num_matches;
        unsigned alloc;
        struct match_attr **attrs;
@@ -527,6 +528,7 @@ static void bootstrap_attr_stack(void)
        if (!is_bare_repository() || direction == GIT_ATTR_INDEX) {
                elem = read_attr(GITATTRIBUTES_FILE, 1);
                elem->origin = xstrdup("");
+               elem->originlen = 0;
                elem->prev = attr_stack;
                attr_stack = elem;
                debug_push(elem);
@@ -620,7 +622,7 @@ static void prepare_attr_stack(const char *path)
                        strbuf_addstr(&pathbuf, GITATTRIBUTES_FILE);
                        elem = read_attr(pathbuf.buf, 0);
                        strbuf_setlen(&pathbuf, cp - path);
-                       elem->origin = strbuf_detach(&pathbuf, NULL);
+                       elem->origin = strbuf_detach(&pathbuf, &elem->originlen);
                        elem->prev = attr_stack;
                        attr_stack = elem;
                        debug_push(elem);
@@ -695,7 +697,7 @@ static int fill(const char *path, int pathlen, struct attr_stack *stk, int rem)
                if (a->is_macro)
                        continue;
                if (path_matches(path, pathlen,
-                                a->u.pattern, base, strlen(base)))
+                                a->u.pattern, base, stk->originlen))
                        rem = fill_one("fill", a, rem);
        }
        return rem;