// 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; import com.google.common.base.Preconditions; import com.google.common.collect.ImmutableMap; import com.google.common.collect.Interner; import com.google.devtools.build.lib.cmdline.RepositoryName; import com.google.devtools.build.lib.concurrent.BlazeInterners; import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec; import com.google.devtools.build.skyframe.AbstractSkyKey; import com.google.devtools.build.skyframe.SkyFunctionName; import com.google.devtools.build.skyframe.SkyKey; import com.google.devtools.build.skyframe.SkyValue; import java.util.Objects; /** * A value that represents the 'mappings' of an external Bazel workspace, as defined * in the main WORKSPACE file. The SkyValue contains the mappings themselves, with the key being * the name of the external repository. * *
Given the following rule: *
{@code * local_repository( * name = “a”, * path = “../a”, * repo_mapping = {“@x” : “@y”} * ) * }* *
The SkyKey would be {@code "@a"} and the SkyValue would be the map {@code {"@x" : "@y"}} * *
This is kept as a separate value with trivial change pruning so as to not necessitate a
* dependency from every {@link PackageValue} to the //external {@link PackageValue}, so that
* changes to things in the WORKSPACE other than the mappings (and name) won't require reloading
* all packages. If the mappings are changed then the external packages need to be reloaded.
*/
public class RepositoryMappingValue implements SkyValue {
private final ImmutableMap