[PATCH pve-common 01/15] pbs-client: autogen key: rename old one if existing

[Stoiko Ivanov <s.ivanov@proxmox.com>]

while looking into adding encryption support for PMG, I noticed the
discrepancy between PVE::Storage::PBSPlugin and PVE::PBSClient

Semantically this follows:
478609d ("pbs: autogen key: rename old one if existing")

in pve-storage.

Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
---
 src/PVE/PBSClient.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/PVE/PBSClient.pm b/src/PVE/PBSClient.pm
index 5af0d00..d8dd3f0 100644
--- a/src/PVE/PBSClient.pm
+++ b/src/PVE/PBSClient.pm
@@ -238,6 +238,9 @@ my sub run_client_cmd : prototype($$;$$$$) {
 sub autogen_encryption_key {
     my ($self) = @_;
     my $encfile = $self->encryption_key_file_name();
+    if (-f $encfile) {
+        rename $encfile, "$encfile.old";
+    }
     run_command(
         ['proxmox-backup-client', 'key', 'create', '--kdf', 'none', $encfile],
         errmsg => 'failed to create encryption key',
-- 
2.47.3