refactor ref status logic for pushing

Move the logic that detects up-to-date and non-fast-forward refs to a
new function in remote.[ch], set_ref_status_for_push().

Make transport_push() invoke set_ref_status_for_push() before invoking
the push_refs() implementation. (As a side-effect, the push_refs()
implementation in transport-helper.c now knows of non-fast-forward
pushes.)

Removed logic for detecting up-to-date refs from the push_refs()
implementation in transport-helper.c, as transport_push() has already
done so for it.

Make cmd_send_pack() invoke set_ref_status_for_push() before invoking
send_pack(), as transport_push() can't do it for send_pack() here.

Mark the test on the return status of non-fast-forward push to fail.
Git now exits with success, as transport.c::transport_push() does not
check for refs with status REF_STATUS_REJECT_NONFASTFORWARD nor does it
indicate rejected pushes with its return value.

Mark the test for ref status to succeed. As mentioned earlier, refs
might be marked as non-fast-forwards, triggering the push status
printing mechanism in transport.c.

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Tay Ray Chuan 2010-01-08 10:12:42 +08:00 коммит произвёл Junio C Hamano
Родитель 7b69079be9
Коммит 20e8b465a5
6 изменённых файлов: 78 добавлений и 49 удалений

Просмотреть файл

@ -406,52 +406,22 @@ int send_pack(struct send_pack_args *args,
*/
new_refs = 0;
for (ref = remote_refs; ref; ref = ref->next) {
if (ref->peer_ref)
hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
else if (!args->send_mirror)
if (!ref->peer_ref && !args->send_mirror)
continue;
ref->deletion = is_null_sha1(ref->new_sha1);
/* Check for statuses set by set_ref_status_for_push() */
switch (ref->status) {
case REF_STATUS_REJECT_NONFASTFORWARD:
case REF_STATUS_UPTODATE:
continue;
default:
; /* do nothing */
}
if (ref->deletion && !allow_deleting_refs) {
ref->status = REF_STATUS_REJECT_NODELETE;
continue;
}
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 && !args->force_update) {
ref->status = REF_STATUS_REJECT_NONFASTFORWARD;
continue;
}
if (!ref->deletion)
new_refs++;
@ -673,6 +643,9 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
if (match_refs(local_refs, &remote_refs, nr_refspecs, refspecs, flags))
return -1;
set_ref_status_for_push(remote_refs, args.send_mirror,
args.force_update);
ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
if (helper_status)

Просмотреть файл

@ -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;

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@ -98,6 +98,8 @@ char *apply_refspecs(struct refspec *refspecs, int nr_refspec,
int match_refs(struct ref *src, struct ref **dst,
int nr_refspec, const char **refspec, int all);
void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
int force_update);
/*
* Given a list of the remote refs and the specification of things to

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@ -88,7 +88,7 @@ test_expect_success 'used receive-pack service' '
test_cmp exp act
'
test_expect_success 'non-fast-forward push fails' '
test_expect_failure 'non-fast-forward push fails' '
cd "$ROOT_PATH"/test_repo_clone &&
git checkout master &&
echo "changed" > path2 &&
@ -100,7 +100,7 @@ test_expect_success 'non-fast-forward push fails' '
test $HEAD != $(git rev-parse --verify HEAD))
'
test_expect_failure 'non-fast-forward push show ref status' '
test_expect_success 'non-fast-forward push show ref status' '
grep "^ ! \[rejected\][ ]*master -> master (non-fast-forward)$" output
'

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@ -329,16 +329,16 @@ static int push_refs(struct transport *transport,
return 1;
for (ref = remote_refs; ref; ref = ref->next) {
if (ref->peer_ref)
hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
else if (!mirror)
if (!ref->peer_ref && !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;
/* Check for statuses set by set_ref_status_for_push() */
switch (ref->status) {
case REF_STATUS_REJECT_NONFASTFORWARD:
case REF_STATUS_UPTODATE:
continue;
default:
; /* do nothing */
}
if (force_all)

Просмотреть файл

@ -887,6 +887,10 @@ int transport_push(struct transport *transport,
return -1;
}
set_ref_status_for_push(remote_refs,
flags & TRANSPORT_PUSH_MIRROR,
flags & TRANSPORT_PUSH_FORCE);
ret = transport->push_refs(transport, remote_refs, flags);
if (!quiet || push_had_errors(remote_refs))