[pve-devel] [PATCH guest-common 1/2] replication: prepare: include volumes without snapshots in the result

[Fiona Ebner]

Note that PVE::Storage::volume_snapshot_info() will fail when a volume
does not exist, so no non-existing volume will end up in the result
(prepare() is only called with volumes that should exist).

This makes it possible to detect a volume without snapshots in the
result of prepare(), and as a consequence, replication will now also
fail early in a situation where source and remote volume both exist,
but (at least) one of them doesn't have any snapshots.

Such a situation can happen, for example, by deleting and re-creating
a volume with the same name on the source side without running
replication after deletion.

Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
---
 src/PVE/Replication.pm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/PVE/Replication.pm b/src/PVE/Replication.pm
index 469ca19..f9d454d 100644
--- a/src/PVE/Replication.pm
+++ b/src/PVE/Replication.pm
@@ -172,6 +172,8 @@ sub prepare {
     my $local_snapshots = {};
     my $cleaned_replicated_volumes = {};
     foreach my $volid (@$volids) {
+	$local_snapshots->{$volid} = {};
+
 	my $info = PVE::Storage::volume_snapshot_info($storecfg, $volid);
 
 	my $removal_ok = !defined($snapname) || $info->{$snapname};
-- 
2.30.2