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authorJunio C Hamano <junkio@cox.net>2006-11-24 08:26:49 (GMT)
committerJunio C Hamano <junkio@cox.net>2006-11-24 11:59:05 (GMT)
commitd4f694ba89857a87e259557d0f236c761b4041ef (patch)
tree08453ccc3a39a74ad5e74ff4bf1cf13dd88b85c7 /send-pack.c
parent634b8d05142a4812bf35fe8b14cc62c84494c78f (diff)
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Allow git push to delete remote ref.
This allows you to say git send-pack $URL :refs/heads/$branch to delete the named remote branch. The refspec $src:$dst means replace the destination ref with the object known as $src on the local side, so this is a natural extension to make an empty $src mean "No object" to delete the target. Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'send-pack.c')
-rw-r--r--send-pack.c41
1 files changed, 30 insertions, 11 deletions
diff --git a/send-pack.c b/send-pack.c
index 4476666..328dbbc 100644
--- a/send-pack.c
+++ b/send-pack.c
@@ -271,6 +271,7 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
int new_refs;
int ret = 0;
int ask_for_status_report = 0;
+ int allow_deleting_refs = 0;
int expect_status_report = 0;
/* No funny business with the matcher */
@@ -280,6 +281,8 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
/* Does the other end support the reporting? */
if (server_supports("report-status"))
ask_for_status_report = 1;
+ if (server_supports("delete-refs"))
+ allow_deleting_refs = 1;
/* match them up */
if (!remote_tail)
@@ -299,9 +302,19 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
new_refs = 0;
for (ref = remote_refs; ref; ref = ref->next) {
char old_hex[60], *new_hex;
+ int delete_ref;
+
if (!ref->peer_ref)
continue;
- if (!hashcmp(ref->old_sha1, ref->peer_ref->new_sha1)) {
+
+ delete_ref = is_null_sha1(ref->peer_ref->new_sha1);
+ if (delete_ref && !allow_deleting_refs) {
+ error("remote does not support deleting refs");
+ ret = -2;
+ continue;
+ }
+ if (!delete_ref &&
+ !hashcmp(ref->old_sha1, ref->peer_ref->new_sha1)) {
if (verbose)
fprintf(stderr, "'%s': up-to-date\n", ref->name);
continue;
@@ -321,9 +334,13 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
*
* (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.
*/
if (!force_update &&
+ !delete_ref &&
!is_zero_sha1(ref->old_sha1) &&
!ref->force) {
if (!has_sha1_file(ref->old_sha1) ||
@@ -347,12 +364,8 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
}
}
hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
- if (is_zero_sha1(ref->new_sha1)) {
- error("cannot happen anymore");
- ret = -3;
- continue;
- }
- new_refs++;
+ if (!delete_ref)
+ new_refs++;
strcpy(old_hex, sha1_to_hex(ref->old_sha1));
new_hex = sha1_to_hex(ref->new_sha1);
@@ -366,10 +379,16 @@ static int send_pack(int in, int out, int nr_refspec, char **refspec)
else
packet_write(out, "%s %s %s",
old_hex, new_hex, ref->name);
- fprintf(stderr, "updating '%s'", ref->name);
- if (strcmp(ref->name, ref->peer_ref->name))
- fprintf(stderr, " using '%s'", ref->peer_ref->name);
- fprintf(stderr, "\n from %s\n to %s\n", old_hex, new_hex);
+ if (delete_ref)
+ fprintf(stderr, "deleting '%s'\n", ref->name);
+ else {
+ fprintf(stderr, "updating '%s'", ref->name);
+ if (strcmp(ref->name, ref->peer_ref->name))
+ fprintf(stderr, " using '%s'",
+ ref->peer_ref->name);
+ fprintf(stderr, "\n from %s\n to %s\n",
+ old_hex, new_hex);
+ }
}
packet_flush(out);