| // 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.bazel.rules.genrule; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.analysis.AliasProvider; |
| import com.google.devtools.build.lib.analysis.FileProvider; |
| import com.google.devtools.build.lib.analysis.TransitiveInfoCollection; |
| import com.google.devtools.build.lib.cmdline.Label; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSet; |
| import com.google.devtools.build.lib.rules.genrule.GenRuleBase; |
| import java.util.List; |
| |
| /** An implementation of genrule for Bazel. */ |
| public final class BazelGenRule extends GenRuleBase { |
| |
| @Override |
| protected ImmutableMap<Label, NestedSet<Artifact>> collectSources( |
| List<? extends TransitiveInfoCollection> srcs) { |
| ImmutableMap.Builder<Label, NestedSet<Artifact>> labelMap = |
| ImmutableMap.builderWithExpectedSize(srcs.size()); |
| |
| for (TransitiveInfoCollection dep : srcs) { |
| NestedSet<Artifact> files = dep.getProvider(FileProvider.class).getFilesToBuild(); |
| labelMap.put(AliasProvider.getDependencyLabel(dep), files); |
| } |
| |
| return labelMap.buildOrThrow(); |
| } |
| } |