diff options
Diffstat (limited to 'remote.c')
| -rw-r--r-- | remote.c | 50 |
1 files changed, 50 insertions, 0 deletions
@@ -1247,6 +1247,56 @@ int match_refs(struct ref *src, struct ref **dst, return 0; } +void set_ref_status_for_push(struct ref *remote_refs, int send_mirror, + int force_update) +{ + struct ref *ref; + + for (ref = remote_refs; ref; ref = ref->next) { + if (ref->peer_ref) + hashcpy(ref->new_sha1, ref->peer_ref->new_sha1); + else if (!send_mirror) + continue; + + ref->deletion = is_null_sha1(ref->new_sha1); + if (!ref->deletion && + !hashcmp(ref->old_sha1, ref->new_sha1)) { + ref->status = REF_STATUS_UPTODATE; + continue; + } + + /* This part determines what can overwrite what. + * The rules are: + * + * (0) you can always use --force or +A:B notation to + * selectively force individual ref pairs. + * + * (1) if the old thing does not exist, it is OK. + * + * (2) if you do not have the old thing, you are not allowed + * to overwrite it; you would not know what you are losing + * otherwise. + * + * (3) if both new and old are commit-ish, and new is a + * descendant of old, it is OK. + * + * (4) regardless of all of the above, removing :B is + * always allowed. + */ + + ref->nonfastforward = + !ref->deletion && + !is_null_sha1(ref->old_sha1) && + (!has_sha1_file(ref->old_sha1) + || !ref_newer(ref->new_sha1, ref->old_sha1)); + + if (ref->nonfastforward && !ref->force && !force_update) { + ref->status = REF_STATUS_REJECT_NONFASTFORWARD; + continue; + } + } +} + struct branch *branch_get(const char *name) { struct branch *ret; |