| // Copyright 2019 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.query2; |
| |
| import com.google.common.collect.ArrayListMultimap; |
| import com.google.common.collect.Iterables; |
| import com.google.common.collect.Multimap; |
| import com.google.devtools.build.lib.cmdline.PackageIdentifier; |
| import com.google.devtools.build.lib.concurrent.MultisetSemaphore; |
| import com.google.devtools.build.lib.packages.Target; |
| import com.google.devtools.build.lib.query2.ParallelSkyQueryUtils.DepAndRdep; |
| import com.google.devtools.build.skyframe.SkyKey; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Set; |
| |
| class RdepsVisitorUtils { |
| private RdepsVisitorUtils() {} |
| |
| static Iterable<SkyKey> getMaybeFilteredRdeps( |
| Iterable<DepAndRdep> depAndRdeps, SkyQueryEnvironment env) throws InterruptedException { |
| return env.hasDependencyFilter() ? getFilteredRdeps(depAndRdeps, env) : getRdeps(depAndRdeps); |
| } |
| |
| private static Iterable<SkyKey> getFilteredRdeps( |
| Iterable<DepAndRdep> depAndRdeps, SkyQueryEnvironment env) throws InterruptedException { |
| ArrayList<SkyKey> filteredRdeps = new ArrayList<>(); |
| |
| Multimap<SkyKey, SkyKey> reverseDepMultimap = ArrayListMultimap.create(); |
| for (DepAndRdep depAndRdep : depAndRdeps) { |
| if (depAndRdep.dep == null) { |
| filteredRdeps.add(depAndRdep.rdep); |
| } else { |
| reverseDepMultimap.put(depAndRdep.dep, depAndRdep.rdep); |
| } |
| } |
| |
| Multimap<SkyKey, SkyKey> packageKeyToTargetKeyMap = |
| SkyQueryEnvironment.makePackageKeyToTargetKeyMap( |
| Iterables.concat(reverseDepMultimap.values())); |
| Set<PackageIdentifier> pkgIdsNeededForTargetification = |
| SkyQueryEnvironment.getPkgIdsNeededForTargetification(packageKeyToTargetKeyMap); |
| |
| MultisetSemaphore<PackageIdentifier> packageSemaphore = env.getPackageMultisetSemaphore(); |
| packageSemaphore.acquireAll(pkgIdsNeededForTargetification); |
| try { |
| if (!reverseDepMultimap.isEmpty()) { |
| Collection<Target> filteredTargets = |
| env.filterRawReverseDepsOfTransitiveTraversalKeys( |
| reverseDepMultimap.asMap(), packageKeyToTargetKeyMap); |
| filteredTargets.stream() |
| .map(SkyQueryEnvironment.TARGET_TO_SKY_KEY) |
| .forEachOrdered(filteredRdeps::add); |
| } |
| } finally { |
| packageSemaphore.releaseAll(pkgIdsNeededForTargetification); |
| } |
| |
| return filteredRdeps; |
| } |
| |
| private static Iterable<SkyKey> getRdeps(Iterable<DepAndRdep> depAndRdeps) { |
| return Iterables.transform(depAndRdeps, depAndRdep -> depAndRdep.rdep); |
| } |
| } |