// Copyright 2015 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.analysis;
import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.syntax.EvalException;
/**
* Utility class to validate results of executing Skylark rules and aspects.
*/
public class SkylarkProviderValidationUtil {
public static void checkOrphanArtifacts(RuleContext ruleContext) throws EvalException {
ImmutableSet<Artifact> orphanArtifacts =
ruleContext.getAnalysisEnvironment().getOrphanArtifacts();
if (!orphanArtifacts.isEmpty()) {
throw new EvalException(null, "The following files have no generating action:\n"
+ Joiner.on("\n").join(Iterables.transform(orphanArtifacts,
new Function<Artifact, String>() {
@Override
public String apply(Artifact artifact) {
return artifact.getRootRelativePathString();
}
})));
}
}
}