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// Copyright 2014 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.packages;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe;
import java.util.Collection;
import java.util.List;
/**
* A rule visibility that allows visibility to a list of package groups.
*/
@Immutable @ThreadSafe
public class PackageGroupsRuleVisibility implements RuleVisibility {
public static final String PACKAGE_LABEL = "__pkg__";
public static final String SUBTREE_LABEL = "__subpackages__";
private final List<Label> packageGroups;
private final List<PackageSpecification> directPackages;
private final List<Label> declaredLabels;
public PackageGroupsRuleVisibility(Label ruleLabel, List<Label> labels) {
declaredLabels = ImmutableList.copyOf(labels);
ImmutableList.Builder<PackageSpecification> directPackageBuilder = ImmutableList.builder();
ImmutableList.Builder<Label> packageGroupBuilder = ImmutableList.builder();
for (Label label : labels) {
Label resolved = ruleLabel.resolveRepositoryRelative(label);
PackageSpecification specification = PackageSpecification.fromLabel(resolved);
if (specification != null) {
directPackageBuilder.add(specification);
} else {
packageGroupBuilder.add(resolved);
}
}
packageGroups = packageGroupBuilder.build();
directPackages = directPackageBuilder.build();
}
public Collection<Label> getPackageGroups() {
return packageGroups;
}
public Collection<PackageSpecification> getDirectPackages() {
return directPackages;
}
@Override
public List<Label> getDependencyLabels() {
return packageGroups;
}
@Override
public List<Label> getDeclaredLabels() {
return declaredLabels;
}
/**
* Tries to parse a list of labels into a {@link PackageGroupsRuleVisibility}.
*
* @param labels the list of labels to parse
* @return The resulting visibility object. A list of labels can always be
* parsed into a PackageGroupsRuleVisibility.
*/
public static PackageGroupsRuleVisibility tryParse(Label ruleLabel, List<Label> labels) {
return new PackageGroupsRuleVisibility(ruleLabel, labels);
}
}
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