+ if ($snapname) {
+ my $snapshot = $conf->{snapshots}->{$snapname};
+ die "snapshot '$snapname' does not exist\n"
+ if !defined($snapshot);
+ my $digest = $conf->{digest};
+
+ # we need the digest of the file
+ $snapshot->{digest} = $conf->{digest};
+ $conf = $snapshot;
+ }
+