| // 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.analysis; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.actions.FilesetTraversalParams; |
| import com.google.devtools.build.lib.packages.OutputFile; |
| import com.google.devtools.build.lib.rules.fileset.FilesetProvider; |
| import com.google.devtools.build.lib.util.Preconditions; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| import javax.annotation.Nullable; |
| |
| /** |
| * A configured target for output files generated by {@code Fileset} rules. They are almost the |
| * same thing as output files except that they implement {@link FilesetProvider} so that |
| * {@code Fileset} can figure out the link tree behind them. |
| * |
| * <p>In an ideal world, this would not be needed: Filesets would depend on other Filesets and not |
| * their output directories. However, sometimes a Fileset depends on the output directory of |
| * another Fileset. Thus, we need this hack. |
| */ |
| public final class FilesetOutputConfiguredTarget extends OutputFileConfiguredTarget |
| implements FilesetProvider { |
| private final Artifact filesetInputManifest; |
| private final PathFragment filesetLinkDir; |
| @Nullable private final ImmutableList<FilesetTraversalParams> filesetTraversals; |
| |
| FilesetOutputConfiguredTarget( |
| TargetContext targetContext, |
| OutputFile outputFile, |
| TransitiveInfoCollection generatingRule, |
| Artifact outputArtifact, |
| @Nullable ImmutableList<FilesetTraversalParams> traversals) { |
| super(targetContext, outputFile, generatingRule, outputArtifact); |
| FilesetProvider provider = generatingRule.getProvider(FilesetProvider.class); |
| Preconditions.checkArgument(provider != null); |
| filesetInputManifest = provider.getFilesetInputManifest(); |
| filesetLinkDir = provider.getFilesetLinkDir(); |
| filesetTraversals = traversals; |
| } |
| |
| @Override |
| public Artifact getFilesetInputManifest() { |
| return filesetInputManifest; |
| } |
| |
| @Override |
| public PathFragment getFilesetLinkDir() { |
| return filesetLinkDir; |
| } |
| |
| @Nullable |
| @Override |
| public ImmutableList<FilesetTraversalParams> getTraversals() { |
| return filesetTraversals; |
| } |
| } |