clone: do not add alternate references to extra_refs

diff --git a/dir.c b/dir.c
index 7bc75c94486b0419039e54185c29ae2657e26d6b..0a78d00b545ac4f302ea89b6393773669907599e 100644 (file)
--- a/dir.c
+++ b/dir.c
@@ -34,7 +34,7 @@ int fnmatch_icase(const char *pattern, const char *string, int flags)
        return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0));
 }
 
-size_t common_prefix_len(const char **pathspec)
+static size_t common_prefix_len(const char **pathspec)
 {
        const char *n, *first;
        size_t max = 0;
@@ -61,6 +61,17 @@ size_t common_prefix_len(const char **pathspec)
        return max;
 }
 
+/*
+ * 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);
+
+       return len ? xmemdupz(*pathspec, len) : NULL;
+}
+
 int fill_directory(struct dir_struct *dir, const char **pathspec)
 {
        const char *path;
@@ -957,34 +968,34 @@ static int read_directory_recursive(struct dir_struct *dir,
 {
        DIR *fdir = opendir(*base ? base : ".");
        int contents = 0;
+       struct dirent *de;
+       char path[PATH_MAX + 1];
 
-       if (fdir) {
-               struct dirent *de;
-               char path[PATH_MAX + 1];
-               memcpy(path, base, baselen);
-
-               while ((de = readdir(fdir)) != NULL) {
-                       int len;
-                       switch (treat_path(dir, de, path, sizeof(path),
-                                          baselen, simplify, &len)) {
-                       case path_recurse:
-                               contents += read_directory_recursive
-                                       (dir, path, len, 0, simplify);
-                               continue;
-                       case path_ignored:
-                               continue;
-                       case path_handled:
-                               break;
-                       }
-                       contents++;
-                       if (check_only)
-                               goto exit_early;
-                       else
-                               dir_add_name(dir, path, len);
+       if (!fdir)
+               return 0;
+
+       memcpy(path, base, baselen);
+
+       while ((de = readdir(fdir)) != NULL) {
+               int len;
+               switch (treat_path(dir, de, path, sizeof(path),
+                                  baselen, simplify, &len)) {
+               case path_recurse:
+                       contents += read_directory_recursive(dir, path, len, 0, simplify);
+                       continue;
+               case path_ignored:
+                       continue;
+               case path_handled:
+                       break;
                }
-exit_early:
-               closedir(fdir);
+               contents++;
+               if (check_only)
+                       goto exit_early;
+               else
+                       dir_add_name(dir, path, len);
        }
+exit_early:
+       closedir(fdir);
 
        return contents;
 }