fetch: Speed up fetch of large numbers of refs

diff --git a/builtin-describe.c b/builtin-describe.c
index 7a662980d102a275fceb8299bba0b84b41a8f9cb..df67a733ae5c91b0b4278c31c12a7432c0ec601e 100644 (file)
--- a/builtin-describe.c
+++ b/builtin-describe.c
@@ -20,6 +20,7 @@ static int tags;      /* Allow lightweight tags */
 static int longformat;
 static int abbrev = DEFAULT_ABBREV;
 static int max_candidates = 10;
+static int found_names;
 static const char *pattern;
 static int always;
 
@@ -49,6 +50,7 @@ static void add_to_known_names(const char *path,
                memcpy(e->path, path, len);
                commit->util = e;
        }
+       found_names = 1;
 }
 
 static int get_name(const char *path, const unsigned char *sha1, int flag, void *cb_data)
@@ -195,6 +197,9 @@ static void describe(const char *arg, int last_one)
                for_each_ref(get_name, NULL);
        }
 
+       if (!found_names)
+               die("cannot describe '%s'", sha1_to_hex(sha1));
+
        n = cmit->util;
        if (n) {
                /*