blob: a3a759d53b66af67075d22b95e07699a35fe6bfe [file] [log] [blame]
// Copyright 2018 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.skyframe.actiongraph.v2;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.AnalysisProtosV2.DepSetOfFiles;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSet.Node;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
/** Cache for NestedSets in the action graph. */
public class KnownNestedSets extends BaseCache<Object, DepSetOfFiles> {
private final KnownArtifacts knownArtifacts;
private final boolean deduplicateDepsets;
KnownNestedSets(
AqueryOutputHandler aqueryOutputHandler,
KnownArtifacts knownArtifacts,
boolean deduplicateDepsets) {
super(aqueryOutputHandler);
this.knownArtifacts = knownArtifacts;
this.deduplicateDepsets = deduplicateDepsets;
}
@Override
protected Object transformToKey(Object nestedSet) {
return ((NestedSet) nestedSet).toNode();
}
@Override
DepSetOfFiles createProto(Object nestedSetObject, int id)
throws IOException, InterruptedException {
NestedSet<?> nestedSet = (NestedSet) nestedSetObject;
DepSetOfFiles.Builder depSetBuilder = DepSetOfFiles.newBuilder().setId(id);
// Some malformed NestedSets have duplicate non-leaf child subsets. This does not add any
// meaningful info and sometimes even corrupt the proto3 output. More context: b/186193294.
Set<Node> visited = new HashSet<>();
for (NestedSet<?> succ : nestedSet.getNonLeaves()) {
if (!deduplicateDepsets || visited.add(succ.toNode())) {
depSetBuilder.addTransitiveDepSetIds(this.dataToIdAndStreamOutputProto(succ));
}
}
for (Object elem : nestedSet.getLeaves()) {
depSetBuilder.addDirectArtifactIds(
knownArtifacts.dataToIdAndStreamOutputProto((Artifact) elem));
}
return depSetBuilder.build();
}
@Override
void toOutput(DepSetOfFiles depSetOfFilesProto) throws IOException {
aqueryOutputHandler.outputDepSetOfFiles(depSetOfFilesProto);
}
}