// 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.skyframe; import com.google.common.base.MoreObjects; import com.google.common.collect.ImmutableSet; import com.google.devtools.build.lib.cmdline.RepositoryName; import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe; import com.google.devtools.build.lib.pkgcache.FilteringPolicies; import com.google.devtools.build.lib.pkgcache.FilteringPolicy; import com.google.devtools.build.lib.skyframe.RecursivePkgValue.RecursivePkgKey; import com.google.devtools.build.lib.util.Preconditions; import com.google.devtools.build.lib.vfs.PathFragment; import com.google.devtools.build.lib.vfs.RootedPath; import com.google.devtools.build.skyframe.SkyKey; import com.google.devtools.build.skyframe.SkyValue; import java.io.Serializable; import java.util.Objects; /** * Dummy value that is the result of {@link PrepareDepsOfTargetsUnderDirectoryFunction}. * *
Note that even though the {@link PrepareDepsOfTargetsUnderDirectoryFunction} is evaluated
* entirely because of its side effects (i.e. loading transitive dependencies of targets), this
* value interacts safely with change pruning, despite the fact that this value is a singleton. When
* the targets in a package change, the {@link PackageValue} that
* {@link PrepareDepsOfTargetsUnderDirectoryFunction} depends on will be invalidated, and the
* PrepareDeps function for that package's directory will be re-evaluated, loading any new
* transitive dependencies. Change pruning may prevent the re-evaluation of PrepareDeps for
* directories above that one, but they don't need to be re-run.
*/
public final class PrepareDepsOfTargetsUnderDirectoryValue implements SkyValue {
public static final PrepareDepsOfTargetsUnderDirectoryValue INSTANCE =
new PrepareDepsOfTargetsUnderDirectoryValue();
private PrepareDepsOfTargetsUnderDirectoryValue() {}
/** Create a prepare deps of targets under directory request. */
@ThreadSafe
public static SkyKey key(RepositoryName repository, RootedPath rootedPath,
ImmutableSet