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// 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.Joiner;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import net.starlark.java.eval.EvalException;
import net.starlark.java.eval.Starlark;
/** Utility class to validate results of executing Starlark rules and aspects. */
public class StarlarkProviderValidationUtil {
public static void validateArtifacts(RuleContext ruleContext) throws EvalException {
ImmutableSet<Artifact> treeArtifactsConflictingWithFiles =
ruleContext.getAnalysisEnvironment().getTreeArtifactsConflictingWithFiles();
if (!treeArtifactsConflictingWithFiles.isEmpty()) {
throw Starlark.errorf(
"The following directories were also declared as files:\n%s",
artifactsDescription(treeArtifactsConflictingWithFiles));
}
ImmutableSet<Artifact> orphanArtifacts =
ruleContext.getAnalysisEnvironment().getOrphanArtifacts();
if (!orphanArtifacts.isEmpty()) {
throw Starlark.errorf(
"The following files have no generating action:\n%s",
artifactsDescription(orphanArtifacts));
}
}
private static String artifactsDescription(ImmutableSet<Artifact> artifacts) {
return Joiner.on("\n")
.join(Iterables.transform(artifacts, Artifact::getRootRelativePathString));
}
private StarlarkProviderValidationUtil() {}
}