use PVE::Exception qw(raise_param_exc);
use PVE::JSONSchema qw(get_standard_option);
+use PVE::Tools;
+
+# This package provides a way to have multiple (often similar) types of entries
+# in the same config file, each in its own section, thus "Section Config".
+#
+# The intended structure is to have a single 'base' plugin that inherits from
+# this class and provides meaningful defaults in its '$defaultData', e.g. a
+# default list of the core properties in its propertyList (most often only 'id'
+# and 'type')
+#
+# Each 'real' plugin then has it's own package that should inherit from the
+# 'base' plugin and returns it's specific properties in the 'properties' method,
+# its type in the 'type' method and all the known options, from both parent and
+# itself, in the 'options' method.
+# The options method can also be used to define if a property is 'optional' or
+# 'fixed' (only settable on config entity-creation), for example:
+#
+# ````
+# sub options {
+# return {
+# 'some-optional-property' => { optional => 1 },
+# 'a-fixed-property' => { fixed => 1 },
+# 'a-required-but-not-fixed-property' => {},
+# };
+# }
+# ```
+#
+# 'fixed' options can be set on create, but not changed afterwards.
+#
+# To actually use it, you have to first register all the plugins and then init
+# the 'base' plugin, like so:
+#
+# ```
+# use PVE::Dummy::Plugin1;
+# use PVE::Dummy::Plugin2;
+# use PVE::Dummy::BasePlugin;
+#
+# PVE::Dummy::Plugin1->register();
+# PVE::Dummy::Plugin2->register();
+# PVE::Dummy::BasePlugin->init();
+# ```
+#
+# There are two modes for how properties are exposed, the default 'unified'
+# mode and the 'isolated' mode.
+# In the default unified mode, there is only a global list of properties
+# which the plugins can use, so you cannot define the same property name twice
+# in different plugins. The reason for this is to force the use of identical
+# properties for multiple plugins.
+#
+# The second way is to use the 'isolated' mode, which can be achieved by
+# calling init with `1` as its parameter like this:
+#
+# ```
+# PVE::Dummy::BasePlugin->init(1);
+# ```
+#
+# With this, each plugin get's their own isolated list of properties which it
+# can use. Note that in this mode, you only have to specify the property in the
+# options method when it is either 'fixed' or comes from the global list of
+# properties. All locally defined ones get automatically added to the schema
+# for that plugin.
my $defaultData = {
options => {},
return {};
}
+sub has_isolated_properties {
+ my ($class) = @_;
+
+ my $isolatedPropertyList = $class->private()->{isolatedPropertyList};
+
+ return defined($isolatedPropertyList) && scalar(keys $isolatedPropertyList->%*) > 0;
+}
+
+my sub compare_property {
+ my ($a, $b, $skip_opts) = @_;
+
+ my $merged = {$a->%*, $b->%*};
+ delete $merged->{$_} for $skip_opts->@*;
+
+ for my $opt (keys $merged->%*) {
+ return 0 if !PVE::Tools::is_deeply($a->{$opt}, $b->{$opt});
+ }
+
+ return 1;
+};
+
+my sub add_property {
+ my ($props, $key, $prop, $type) = @_;
+
+ if (!defined($props->{$key})) {
+ $props->{$key} = $prop;
+ return;
+ }
+
+ if (!defined($props->{$key}->{oneOf})) {
+ if (compare_property($props->{$key}, $prop, ['instance-types'])) {
+ push $props->{$key}->{'instance-types'}->@*, $type;
+ } else {
+ my $new_prop = delete $props->{$key};
+ delete $new_prop->{'type-property'};
+ delete $prop->{'type-property'};
+ $props->{$key} = {
+ 'type-property' => 'type',
+ oneOf => [
+ $new_prop,
+ $prop,
+ ],
+ };
+ }
+ } else {
+ for my $existing_prop ($props->{$key}->{oneOf}->@*) {
+ if (compare_property($existing_prop, $prop, ['instance-types', 'type-property'])) {
+ push $existing_prop->{'instance-types'}->@*, $type;
+ return;
+ }
+ }
+
+ push $props->{$key}->{oneOf}->@*, $prop;
+ }
+};
+
sub createSchema {
my ($class, $skip_type, $base) = @_;
my $props = $base || {};
- my $copy_property = sub {
- my ($src) = @_;
+ if (!$class->has_isolated_properties()) {
+ foreach my $p (keys %$propertyList) {
+ next if $skip_type && $p eq 'type';
- my $res = {};
- foreach my $k (keys %$src) {
- $res->{$k} = $src->{$k};
- }
+ if (!$propertyList->{$p}->{optional}) {
+ $props->{$p} = $propertyList->{$p};
+ next;
+ }
- return $res;
- };
+ my $required = 1;
- foreach my $p (keys %$propertyList) {
- next if $skip_type && $p eq 'type';
+ my $copts = $class->options();
+ $required = 0 if defined($copts->{$p}) && $copts->{$p}->{optional};
- if (!$propertyList->{$p}->{optional}) {
- $props->{$p} = $propertyList->{$p};
- next;
- }
-
- my $required = 1;
-
- my $copts = $class->options();
- $required = 0 if defined($copts->{$p}) && $copts->{$p}->{optional};
+ foreach my $t (keys %$plugins) {
+ my $opts = $pdata->{options}->{$t} || {};
+ $required = 0 if !defined($opts->{$p}) || $opts->{$p}->{optional};
+ }
- foreach my $t (keys %$plugins) {
- my $opts = $pdata->{options}->{$t} || {};
- $required = 0 if !defined($opts->{$p}) || $opts->{$p}->{optional};
+ if ($required) {
+ # make a copy, because we modify the optional property
+ my $res = {$propertyList->{$p}->%*}; # shallow copy
+ $res->{optional} = 0;
+ $props->{$p} = $res;
+ } else {
+ $props->{$p} = $propertyList->{$p};
+ }
}
-
- if ($required) {
- # make a copy, because we modify the optional property
- my $res = &$copy_property($propertyList->{$p});
- $res->{optional} = 0;
- $props->{$p} = $res;
- } else {
- $props->{$p} = $propertyList->{$p};
+ } else {
+ for my $type (sort keys %$plugins) {
+ my $opts = $pdata->{options}->{$type} || {};
+ for my $key (sort keys $opts->%*) {
+ my $schema = $class->get_property_schema($type, $key);
+ my $prop = {$schema->%*};
+ $prop->{'instance-types'} = [$type];
+ $prop->{'type-property'} = 'type';
+ $prop->{optional} = 1 if $opts->{$key}->{optional};
+
+ add_property($props, $key, $prop, $type);
+ }
+ }
+ # add remaining global properties
+ for my $opt (keys $propertyList->%*) {
+ next if $props->{$opt};
+ $props->{$opt} = {$propertyList->{$opt}->%*};
+ }
+ for my $opt (keys $props->%*) {
+ if (my $necessaryTypes = $props->{$opt}->{'instance-types'}) {
+ if ($necessaryTypes->@* == scalar(keys $plugins->%*)) {
+ delete $props->{$opt}->{'instance-types'};
+ delete $props->{$opt}->{'type-property'};
+ } else {
+ $props->{$opt}->{optional} = 1;
+ }
+ }
}
}
my $filter_type = $single_class ? $class->type() : undef;
- foreach my $p (keys %$propertyList) {
- next if $p eq 'type';
+ if (!$class->has_isolated_properties()) {
+ foreach my $p (keys %$propertyList) {
+ next if $p eq 'type';
- my $copts = $class->options();
+ my $copts = $class->options();
- next if defined($filter_type) && !defined($copts->{$p});
+ next if defined($filter_type) && !defined($copts->{$p});
- if (!$propertyList->{$p}->{optional}) {
- $props->{$p} = $propertyList->{$p};
- next;
- }
+ if (!$propertyList->{$p}->{optional}) {
+ $props->{$p} = $propertyList->{$p};
+ next;
+ }
- my $modifyable = 0;
+ my $modifyable = 0;
- $modifyable = 1 if defined($copts->{$p}) && !$copts->{$p}->{fixed};
+ $modifyable = 1 if defined($copts->{$p}) && !$copts->{$p}->{fixed};
- foreach my $t (keys %$plugins) {
- my $opts = $pdata->{options}->{$t} || {};
- next if !defined($opts->{$p});
- $modifyable = 1 if !$opts->{$p}->{fixed};
+ foreach my $t (keys %$plugins) {
+ my $opts = $pdata->{options}->{$t} || {};
+ next if !defined($opts->{$p});
+ $modifyable = 1 if !$opts->{$p}->{fixed};
+ }
+ next if !$modifyable;
+
+ $props->{$p} = $propertyList->{$p};
+ }
+ } else {
+ for my $type (sort keys %$plugins) {
+ my $opts = $pdata->{options}->{$type} || {};
+ for my $key (sort keys $opts->%*) {
+ next if $opts->{$key}->{fixed};
+
+ my $schema = $class->get_property_schema($type, $key);
+ my $prop = {$schema->%*};
+ $prop->{'instance-types'} = [$type];
+ $prop->{'type-property'} = 'type';
+ $prop->{optional} = 1;
+
+ add_property($props, $key, $prop, $type);
+ }
+ }
+
+ for my $opt (keys $propertyList->%*) {
+ next if $props->{$opt};
+ $props->{$opt} = {$propertyList->{$opt}->%*};
}
- next if !$modifyable;
- $props->{$p} = $propertyList->{$p};
+ for my $opt (keys $props->%*) {
+ if (my $necessaryTypes = $props->{$opt}->{'instance-types'}) {
+ if ($necessaryTypes->@* == scalar(keys $plugins->%*)) {
+ delete $props->{$opt}->{'instance-types'};
+ delete $props->{$opt}->{'type-property'};
+ }
+ }
+ }
}
$props->{digest} = get_standard_option('pve-config-digest');
}
sub init {
- my ($class) = @_;
+ my ($class, $property_isolation) = @_;
my $pdata = $class->private();
- foreach my $k (qw(options plugins plugindata propertyList)) {
+ foreach my $k (qw(options plugins plugindata propertyList isolatedPropertyList)) {
$pdata->{$k} = {} if !$pdata->{$k};
}
my $plugins = $pdata->{plugins};
my $propertyList = $pdata->{propertyList};
+ my $isolatedPropertyList = $pdata->{isolatedPropertyList};
foreach my $type (keys %$plugins) {
my $props = $plugins->{$type}->properties();
foreach my $p (keys %$props) {
- die "duplicate property '$p'" if defined($propertyList->{$p});
- my $res = $propertyList->{$p} = {};
+ my $res;
+ if ($property_isolation) {
+ $res = $isolatedPropertyList->{$type}->{$p} = {};
+ } else {
+ die "duplicate property '$p'" if defined($propertyList->{$p});
+ $res = $propertyList->{$p} = {};
+ }
my $data = $props->{$p};
for my $a (keys %$data) {
$res->{$a} = $data->{$a};
foreach my $type (keys %$plugins) {
my $opts = $plugins->{$type}->options();
foreach my $p (keys %$opts) {
- die "undefined property '$p'" if !$propertyList->{$p};
+ my $prop;
+ if ($property_isolation) {
+ $prop = $isolatedPropertyList->{$type}->{$p};
+ }
+ $prop //= $propertyList->{$p};
+ die "undefined property '$p'" if !$prop;
+ }
+
+ # automatically the properties to options (if not specified explicitly)
+ if ($property_isolation) {
+ foreach my $p (keys $isolatedPropertyList->{$type}->%*) {
+ next if $opts->{$p};
+ $opts->{$p} = {};
+ $opts->{$p}->{optional} = 1 if $isolatedPropertyList->{$type}->{$p}->{optional};
+ }
}
+
$pdata->{options}->{$type} = $opts;
}
die "unexpected property '$key'\n" if !defined($opts->{$key});
- my $schema = $pdata->{propertyList}->{$key};
+ my $schema = $class->get_property_schema($type, $key);
die "unknown property type\n" if !$schema;
my $ct = $schema->{type};
return "$type: $sectionId\n";
}
+sub get_property_schema {
+ my ($class, $type, $key) = @_;
+
+ my $pdata = $class->private();
+ my $opts = $pdata->{options}->{$type};
+
+ my $schema;
+ if ($class->has_isolated_properties()) {
+ $schema = $pdata->{isolatedPropertyList}->{$type}->{$key};
+ }
+ $schema //= $pdata->{propertyList}->{$key};
+
+ return $schema;
+}
sub parse_config {
my ($class, $filename, $raw, $allow_unknown) = @_;
my $is_array = sub {
my ($type, $key) = @_;
- my $schema = $pdata->{propertyList}->{$key};
+ my $schema = $class->get_property_schema($type, $key);
die "unknown property type\n" if !$schema;
return $schema->{type} eq 'array';
my ($class, $filename, $cfg, $allow_unknown) = @_;
my $pdata = $class->private();
- my $propertyList = $pdata->{propertyList};
my $out = '';
my $scfg = $ids->{$sectionId};
my $type = $scfg->{type};
my $opts = $pdata->{options}->{$type};
+ my $global_opts = $pdata->{options}->{__global};
die "unknown section type '$type'\n" if !$opts && !$allow_unknown;
if ($scfg->{comment} && !$done_hash->{comment}) {
my $k = 'comment';
my $v = $class->encode_value($type, $k, $scfg->{$k});
- $data .= &$format_config_line($propertyList->{$k}, $k, $v);
+ my $prop = $class->get_property_schema($type, $k);
+ $data .= &$format_config_line($prop, $k, $v);
}
$data .= "\tdisable\n" if $scfg->{disable} && !$done_hash->{disable};
die "section '$sectionId' - missing value for required option '$k'\n"
if !defined ($v);
$v = $class->encode_value($type, $k, $v);
- $data .= &$format_config_line($propertyList->{$k}, $k, $v);
+ my $prop = $class->get_property_schema($type, $k);
+ $data .= &$format_config_line($prop, $k, $v);
}
foreach my $k (@option_keys) {
my $v = $scfg->{$k};
next if !defined($v);
$v = $class->encode_value($type, $k, $v);
- $data .= &$format_config_line($propertyList->{$k}, $k, $v);
+ my $prop = $class->get_property_schema($type, $k);
+ $data .= &$format_config_line($prop, $k, $v);
}
$out .= "$data\n";
projects / pve-common.git / commitdiff