| // 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.rules.repository; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.devtools.build.lib.skyframe.SkyFunctions; |
| import com.google.devtools.build.lib.skyframe.SkyValueDirtinessChecker; |
| import com.google.devtools.build.lib.util.io.TimestampGranularityMonitor; |
| import com.google.devtools.build.lib.vfs.SyscallCache; |
| import com.google.devtools.build.skyframe.SkyKey; |
| import com.google.devtools.build.skyframe.SkyValue; |
| import com.google.devtools.build.skyframe.Version; |
| import javax.annotation.Nullable; |
| |
| /** |
| * A dirtiness checker that: |
| * |
| * <p>Dirties {@link RepositoryDirectoryValue}s, if they were produced in a {@code --nofetch} build, |
| * so that they are re-created on subsequent {@code --fetch} builds. The alternative solution would |
| * be to reify the value of the flag as a Skyframe value. |
| */ |
| @VisibleForTesting |
| public class RepositoryDirectoryDirtinessChecker extends SkyValueDirtinessChecker { |
| public RepositoryDirectoryDirtinessChecker() {} |
| |
| @Override |
| public boolean applies(SkyKey skyKey) { |
| return skyKey.functionName().equals(SkyFunctions.REPOSITORY_DIRECTORY); |
| } |
| |
| @Override |
| public SkyValue createNewValue( |
| SkyKey key, SyscallCache syscallCache, @Nullable TimestampGranularityMonitor tsgm) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public DirtyResult check( |
| SkyKey skyKey, |
| SkyValue skyValue, |
| @Nullable Version oldMtsv, |
| SyscallCache syscallCache, |
| @Nullable TimestampGranularityMonitor tsgm) { |
| RepositoryDirectoryValue repositoryValue = (RepositoryDirectoryValue) skyValue; |
| |
| if (!repositoryValue.repositoryExists()) { |
| return DirtyResult.notDirty(); |
| } |
| if (repositoryValue.isFetchingDelayed()) { |
| return DirtyResult.dirty(); |
| } |
| |
| return DirtyResult.notDirty(); |
| } |
| } |