daemon: Strictly parse the "extra arg" part of the command

diff --git a/builtin-fetch.c b/builtin-fetch.c
index 7fb35fca9d1b57dacaebfd3cb9b2af4d035e750c..1f7a3f1ce66434a84ff96ef352245862fe088a70 100644 (file)
--- a/builtin-fetch.c
+++ b/builtin-fetch.c
@@ -167,6 +167,9 @@ static struct ref *get_ref_map(struct transport *transport,
        return ref_map;
 }
 
+#define STORE_REF_ERROR_OTHER 1
+#define STORE_REF_ERROR_DF_CONFLICT 2
+
 static int s_update_ref(const char *action,
                        struct ref *ref,
                        int check_old)
@@ -181,9 +184,11 @@ static int s_update_ref(const char *action,
        lock = lock_any_ref_for_update(ref->name,
                                       check_old ? ref->old_sha1 : NULL, 0);
        if (!lock)
-               return 2;
+               return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT :
+                                         STORE_REF_ERROR_OTHER;
        if (write_ref_sha1(lock, ref->new_sha1, msg) < 0)
-               return 2;
+               return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT :
+                                         STORE_REF_ERROR_OTHER;
        return 0;
 }
 
@@ -197,11 +202,7 @@ static int update_local_ref(struct ref *ref,
        struct commit *current = NULL, *updated;
        enum object_type type;
        struct branch *current_branch = branch_get(NULL);
-       const char *pretty_ref = ref->name + (
-               !prefixcmp(ref->name, "refs/heads/") ? 11 :
-               !prefixcmp(ref->name, "refs/tags/") ? 10 :
-               !prefixcmp(ref->name, "refs/remotes/") ? 13 :
-               0);
+       const char *pretty_ref = prettify_ref(ref);
 
        *display = 0;
        type = sha1_object_info(ref->new_sha1, NULL);
@@ -381,7 +382,7 @@ static int store_updated_refs(const char *url, const char *remote_name,
                }
        }
        fclose(fp);
-       if (rc & 2)
+       if (rc & STORE_REF_ERROR_DF_CONFLICT)
                error("some local refs could not be updated; try running\n"
                      " 'git remote prune %s' to remove any old, conflicting "
                      "branches", remote_name);
@@ -544,7 +545,8 @@ static void check_not_current_branch(struct ref *ref_map)
        for (; ref_map; ref_map = ref_map->next)
                if (ref_map->peer_ref && !strcmp(current_branch->refname,
                                        ref_map->peer_ref->name))
-                       die("Refusing to fetch into current branch");
+                       die("Refusing to fetch into current branch %s "
+                           "of non-bare repository", current_branch->refname);
 }
 
 static int do_fetch(struct transport *transport,