[PATCH v2 3/5] push: flag updates

[Chris Rorvick <chris@rorvick.com>]

If the reference exists on the remote and the the update is not a
delete, then mark as an update.  This is in preparation for handling
tags and branches differently when pushing.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
---
 cache.h  |    1 +
 remote.c |   19 ++++++++++++-------
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/cache.h b/cache.h
index bc2fc9a..1d10761 100644
--- a/cache.h
+++ b/cache.h
@@ -1003,6 +1003,7 @@ struct ref {
 		merge:1,
 		nonfastforward:1,
 		forwardable:1,
+		update:1,
 		deletion:1;
 	enum {
 		REF_STATUS_NONE = 0,
diff --git a/remote.c b/remote.c
index 5ecd58d..3d43bb5 100644
--- a/remote.c
+++ b/remote.c
@@ -1323,15 +1323,20 @@ void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
 			  old->type == OBJ_COMMIT && new->type == OBJ_COMMIT);
 		}
 
-		ref->nonfastforward =
+		ref->update =
 			!ref->deletion &&
-			!is_null_sha1(ref->old_sha1) &&
-			(!has_sha1_file(ref->old_sha1)
-			  || !ref_newer(ref->new_sha1, ref->old_sha1));
+			!is_null_sha1(ref->old_sha1);
 
-		if (ref->nonfastforward && !ref->force && !force_update) {
-			ref->status = REF_STATUS_REJECT_NONFASTFORWARD;
-			continue;
+		if (ref->update) {
+			ref->nonfastforward =
+				ref->update &&
+				(!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;
+			}
 		}
 	}
 }
-- 
1.7.1