do_for_each_ref: perform the same sanity check for leftovers.

An earlier commit b37a562a added a check to see if the ref
points at a valid object (as a part of 'negative ref' support
which we currently do not use), but did so only while iterating
over both packed and loose refs, and forgot to apply the same
check while iterating over the remaining ones.

We might want to replace the "if null then omit it" check with
"eh --- what business does a 0{40} value have here?" complaint
later since we currently do not use negative refs, but that is
a separate issue.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/refs.c b/refs.c
index f003a0b1080267b419296b3b37312b858b8b215d..0e156c5dee1edff895c576a4491ec71f931ff492 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -322,6 +322,20 @@ int read_ref(const char *ref, unsigned char *sha1)
        return -1;
 }
 
+static int do_one_ref(const char *base, each_ref_fn fn, int trim,
+                     void *cb_data, struct ref_list *entry)
+{
+       if (strncmp(base, entry->name, trim))
+               return 0;
+       if (is_null_sha1(entry->sha1))
+               return 0;
+       if (!has_sha1_file(entry->sha1)) {
+               error("%s does not point to a valid object!", entry->name);
+               return 0;
+       }
+       return fn(entry->name + trim, entry->sha1, entry->flag, cb_data);
+}
+
 static int do_for_each_ref(const char *base, each_ref_fn fn, int trim,
                           void *cb_data)
 {
@@ -343,29 +357,15 @@ static int do_for_each_ref(const char *base, each_ref_fn fn, int trim,
                        entry = packed;
                        packed = packed->next;
                }
-               if (strncmp(base, entry->name, trim))
-                       continue;
-               if (is_null_sha1(entry->sha1))
-                       continue;
-               if (!has_sha1_file(entry->sha1)) {
-                       error("%s does not point to a valid object!", entry->name);
-                       continue;
-               }
-               retval = fn(entry->name + trim, entry->sha1,
-                           entry->flag, cb_data);
+               retval = do_one_ref(base, fn, trim, cb_data, entry);
                if (retval)
                        return retval;
        }
 
-       packed = packed ? packed : loose;
-       while (packed) {
-               if (!strncmp(base, packed->name, trim)) {
-                       retval = fn(packed->name + trim, packed->sha1,
-                                   packed->flag, cb_data);
-                       if (retval)
-                               return retval;
-               }
-               packed = packed->next;
+       for (packed = packed ? packed : loose; packed; packed = packed->next) {
+               retval = do_one_ref(base, fn, trim, cb_data, packed);
+               if (retval)
+                       return retval;
        }
        return 0;
 }