| // Copyright 2014 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.devtools.build.lib.actions.ActionLookupData; |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.actions.Artifact.DerivedArtifact; |
| import com.google.devtools.build.lib.analysis.WorkspaceStatusAction; |
| import com.google.devtools.build.skyframe.SkyFunction; |
| import com.google.devtools.build.skyframe.SkyKey; |
| import com.google.devtools.build.skyframe.SkyValue; |
| import javax.annotation.Nullable; |
| |
| /** Creates the workspace status artifacts and action. */ |
| public class WorkspaceStatusFunction implements SkyFunction { |
| interface WorkspaceStatusActionFactory { |
| WorkspaceStatusAction create(String workspaceName); |
| } |
| |
| private final WorkspaceStatusActionFactory workspaceStatusActionFactory; |
| |
| WorkspaceStatusFunction( |
| WorkspaceStatusActionFactory workspaceStatusActionFactory) { |
| this.workspaceStatusActionFactory = workspaceStatusActionFactory; |
| } |
| |
| @Override |
| @Nullable |
| public SkyValue compute(SkyKey skyKey, Environment env) throws InterruptedException { |
| Preconditions.checkState( |
| WorkspaceStatusValue.BUILD_INFO_KEY.equals(skyKey), WorkspaceStatusValue.BUILD_INFO_KEY); |
| WorkspaceNameValue workspaceNameValue = |
| (WorkspaceNameValue) env.getValue(WorkspaceNameValue.key()); |
| if (env.valuesMissing()) { |
| return null; |
| } |
| |
| WorkspaceStatusAction action = |
| workspaceStatusActionFactory.create(workspaceNameValue.getName()); |
| |
| ActionLookupData generatingActionKey = |
| ActionLookupData.createUnshareable(WorkspaceStatusValue.BUILD_INFO_KEY, 0); |
| for (Artifact output : action.getOutputs()) { |
| ((DerivedArtifact) output).setGeneratingActionKey(generatingActionKey); |
| } |
| |
| return new WorkspaceStatusValue(action); |
| } |
| } |