Merge branch 'jc/push-reject-reasons'

[git.git] / remote.c

diff --git a/remote.c b/remote.c
index 4b1153f02c715ac0c441110bf5aa83aceb081aa0..e53a6eb7769e2884f77819c73423c31e49b0114e 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -1279,26 +1279,6 @@ int match_push_refs(struct ref *src, struct ref **dst,
        return 0;
 }
 
-static inline int is_forwardable(struct ref* ref)
-{
-       struct object *o;
-
-       if (!prefixcmp(ref->name, "refs/tags/"))
-               return 0;
-
-       /* old object must be a commit */
-       o = parse_object(ref->old_sha1);
-       if (!o || o->type != OBJ_COMMIT)
-               return 0;
-
-       /* new object must be commit-ish */
-       o = deref_tag(parse_object(ref->new_sha1), NULL, 0);
-       if (!o || o->type != OBJ_COMMIT)
-               return 0;
-
-       return 1;
-}
-
 void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
        int force_update)
 {
@@ -1320,54 +1300,40 @@ void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
                }
 
                /*
-                * The below logic determines whether an individual
-                * refspec A:B can be pushed.  The push will succeed
-                * if any of the following are true:
+                * Decide whether an individual refspec A:B can be
+                * pushed.  The push will succeed if any of the
+                * following are true:
                 *
                 * (1) the remote reference B does not exist
                 *
                 * (2) the remote reference B is being removed (i.e.,
                 *     pushing :B where no source is specified)
                 *
-                * (3) the update meets all fast-forwarding criteria:
-                *
-                *     (a) the destination is not under refs/tags/
-                *     (b) the old is a commit
-                *     (c) the new is a descendant of the old
-                *
-                *     NOTE: We must actually have the old object in
-                *     order to overwrite it in the remote reference,
-                *     and the new object must be commit-ish.  These are
-                *     implied by (b) and (c) respectively.
+                * (3) the destination is not under refs/tags/, and
+                *     if the old and new value is a commit, the new
+                *     is a descendant of the old.
                 *
                 * (4) it is forced using the +A:B notation, or by
                 *     passing the --force argument
                 */
 
-               ref->not_forwardable = !is_forwardable(ref);
-
-               ref->update =
-                       !ref->deletion &&
-                       !is_null_sha1(ref->old_sha1);
-
-               if (ref->update) {
-                       ref->nonfastforward =
-                               !has_sha1_file(ref->old_sha1)
-                                 || !ref_newer(ref->new_sha1, ref->old_sha1);
-
-                       if (ref->not_forwardable) {
-                               ref->requires_force = 1;
-                               if (!force_ref_update) {
-                                       ref->status = REF_STATUS_REJECT_ALREADY_EXISTS;
-                                       continue;
-                               }
-                       } else if (ref->nonfastforward) {
-                               ref->requires_force = 1;
-                               if (!force_ref_update) {
-                                       ref->status = REF_STATUS_REJECT_NONFASTFORWARD;
-                                       continue;
-                               }
-                       }
+               if (!ref->deletion && !is_null_sha1(ref->old_sha1)) {
+                       int why = 0; /* why would this push require --force? */
+
+                       if (!prefixcmp(ref->name, "refs/tags/"))
+                               why = REF_STATUS_REJECT_ALREADY_EXISTS;
+                       else if (!has_sha1_file(ref->old_sha1))
+                               why = REF_STATUS_REJECT_FETCH_FIRST;
+                       else if (!lookup_commit_reference_gently(ref->old_sha1, 1) ||
+                                !lookup_commit_reference_gently(ref->new_sha1, 1))
+                               why = REF_STATUS_REJECT_NEEDS_FORCE;
+                       else if (!ref_newer(ref->new_sha1, ref->old_sha1))
+                               why = REF_STATUS_REJECT_NONFASTFORWARD;
+
+                       if (!force_ref_update)
+                               ref->status = why;
+                       else if (why)
+                               ref->forced_update = 1;
                }
        }
 }
@@ -1561,7 +1527,8 @@ int ref_newer(const unsigned char *new_sha1, const unsigned char *old_sha1)
        struct commit_list *list, *used;
        int found = 0;
 
-       /* Both new and old must be commit-ish and new is descendant of
+       /*
+        * Both new and old must be commit-ish and new is descendant of
         * old.  Otherwise we require --force.
         */
        o = deref_tag(parse_object(old_sha1), NULL, 0);