PVE::Tools::assert_if_modified($cfg->{digest}, $digest);
}
+sub delete_from_config {
+ my ($config, $option_schema, $new_options, $to_delete) = @_;
+
+ for my $k ($to_delete->@*) {
+ my $d = $option_schema->{$k} || die "no such option '$k'\n";
+ die "unable to delete required option '$k'\n" if !$d->{optional};
+ die "unable to delete fixed option '$k'\n" if $d->{fixed};
+ die "cannot set and delete property '$k' at the same time!\n"
+ if defined($new_options->{$k});
+ delete $config->{$k};
+ }
+
+ return $config;
+}
+
1;