blob: f03d1181f1ac9853b4da56ca011e30e932d40420 [file] [log] [blame]
// Copyright 2016 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.analysis;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.actions.ActionAnalysisMetadata;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.packages.BuiltinProvider;
import com.google.devtools.build.lib.packages.StarlarkInfo;
import com.google.devtools.build.lib.packages.StructImpl;
import com.google.devtools.build.lib.starlarkbuildapi.ActionsInfoProviderApi;
import java.util.HashMap;
import java.util.Map;
import net.starlark.java.eval.Dict;
import net.starlark.java.syntax.Location;
/**
* This provides a view over the actions that were created during the analysis of a rule
* (not including actions for its transitive dependencies).
*/
public final class ActionsProvider extends BuiltinProvider<StructImpl>
implements ActionsInfoProviderApi {
/** The ActionsProvider singleton instance. */
public static final ActionsProvider INSTANCE = new ActionsProvider();
public ActionsProvider() {
super("Actions", StructImpl.class);
}
/** Factory method for creating instances of the Actions provider. */
public static StructImpl create(Iterable<ActionAnalysisMetadata> actions) {
Map<Artifact, ActionAnalysisMetadata> map = new HashMap<>();
for (ActionAnalysisMetadata action : actions) {
for (Artifact artifact : action.getOutputs()) {
// In the case that two actions generated the same artifact, the first wins. They
// ought to be equal anyway.
map.putIfAbsent(artifact, action);
}
}
ImmutableMap<String, Object> fields =
ImmutableMap.<String, Object>of("by_file", Dict.immutableCopyOf(map));
return StarlarkInfo.create(INSTANCE, fields, Location.BUILTIN);
}
}