| // 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; |
| |
| KnownNestedSets(AqueryOutputHandler aqueryOutputHandler, KnownArtifacts knownArtifacts) { |
| super(aqueryOutputHandler); |
| this.knownArtifacts = knownArtifacts; |
| } |
| |
| @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 (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); |
| } |
| } |