Add directory pattern matching to attributes

index 4666404..93e00bb 100644
@@ -120,6 +120,8 @@ static int write_archive_entry(const unsigned char *sha1, const char *base,
 	strbuf_add(&path, args->base, args->baselen);
 	strbuf_add(&path, base, baselen);
 	strbuf_addstr(&path, filename);
+	if (S_ISDIR(mode) || S_ISGITLINK(mode))
+		strbuf_addch(&path, '/');
 	path_without_prefix = path.buf + args->baselen;
 
 	setup_archive_check(check);

@@ -130,7 +132,6 @@ static int write_archive_entry(const unsigned char *sha1, const char *base,
 	}
 
 	if (S_ISDIR(mode) || S_ISGITLINK(mode)) {
-		strbuf_addch(&path, '/');
 		if (args->verbose)
 			fprintf(stderr, "%.*s\n", (int)path.len, path.buf);
 		err = write_entry(args, sha1, path.buf, path.len, mode);

index 097ae87..cdba88a 100644
@@ -564,17 +564,31 @@ static void bootstrap_attr_stack(void)
 	attr_stack = elem;
 }
 
+static const char *find_basename(const char *path)
+{
+	char pathbuf[PATH_MAX];
+	int pathlen;
+	const char *cp;
+
+	pathlen =strlen(path);
+	if (path[pathlen-1] != '/') {
+		cp =strrchr(path, '/');
+		return cp ? cp + 1: path;
+	} else {
+		strncpy(pathbuf, path, pathlen);
+		pathbuf[pathlen-1] = '\0';
+		cp =strrchr(pathbuf, '/');
+		return cp ? path + (cp - pathbuf) + 1 : path;
+	}
+}
+
 static void prepare_attr_stack(const char *path)
 {
 	struct attr_stack *elem, *info;
 	int dirlen, len;
 	const char *cp;
 
-	cp = strrchr(path, '/');
-	if (!cp)
-		dirlen = 0;
-	else
-		dirlen = cp - path;
+	dirlen = find_basename(path) - path;
 
 	/*
 	 * At the bottom of the attribute stack is the built-in

@@ -668,6 +682,10 @@ static int path_matches(const char *pathname, int pathlen,
 	const char *pattern = pat->pattern;
 	int prefix = pat->nowildcardlen;
 
+	if ((pat->flags & EXC_FLAG_MUSTBEDIR) &&
+	    ((!pathlen) || (pathname[pathlen-1] != '/')))
+		return 0;
+
 	if (pat->flags & EXC_FLAG_NODIR) {
 		return match_basename(basename,
 				      pathlen - (basename - pathname),

@@ -758,9 +776,7 @@ static void collect_all_attrs(const char *path)
 	for (i = 0; i < attr_nr; i++)
 		check_all_attr[i].value = ATTR__UNKNOWN;
 
-	basename = strrchr(path, '/');
-	basename = basename ? basename + 1 : path;
-
+	basename = find_basename(path);
 	pathlen = strlen(path);
 	rem = attr_nr;
 	for (stk = attr_stack; 0 < rem && stk; stk = stk->prev)