unpack-trees: allow Porcelain to give different error messages

diff --git a/builtin-push.c b/builtin-push.c
index 9f727c00f689ae23373502c7fb21b2234a1c1748..b35aad68e9154bb755c51323106c738ab4fc61e9 100644 (file)
--- a/builtin-push.c
+++ b/builtin-push.c
@@ -44,15 +44,6 @@ static void set_refspecs(const char **refs, int nr)
                        strcat(tag, refs[i]);
                        ref = tag;
                }
-               if (!strcmp("HEAD", ref)) {
-                       unsigned char sha1_dummy[20];
-                       ref = resolve_ref(ref, sha1_dummy, 1, NULL);
-                       if (!ref)
-                               die("HEAD cannot be resolved.");
-                       if (prefixcmp(ref, "refs/heads/"))
-                               die("HEAD cannot be resolved to branch.");
-                       ref = xstrdup(ref + 11);
-               }
                add_refspec(ref);
        }
 }
@@ -65,6 +56,17 @@ static int do_push(const char *repo, int flags)
        if (!remote)
                die("bad repository '%s'", repo);
 
+       if (remote->mirror)
+               flags |= (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE);
+
+       if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) && refspec)
+               return -1;
+
+       if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) ==
+                               (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) {
+               return error("--all and --mirror are incompatible");
+       }
+
        if (!refspec
                && !(flags & TRANSPORT_PUSH_ALL)
                && remote->push_refspec_nr) {
@@ -104,6 +106,7 @@ int cmd_push(int argc, const char **argv, const char *prefix)
        int dry_run = 0;
        int force = 0;
        int tags = 0;
+       int rc;
        const char *repo = NULL;        /* default repository */
 
        struct option options[] = {
@@ -139,14 +142,10 @@ int cmd_push(int argc, const char **argv, const char *prefix)
                repo = argv[0];
                set_refspecs(argv + 1, argc - 1);
        }
-       if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) && refspec)
-               usage_with_options(push_usage, options);
 
-       if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) ==
-                               (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) {
-               error("--all and --mirror are incompatible");
+       rc = do_push(repo, flags);
+       if (rc == -1)
                usage_with_options(push_usage, options);
-       }
-
-       return do_push(repo, flags);
+       else
+               return rc;
 }