| // Copyright 2015 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.rules.proto; |
| |
| import static com.google.devtools.build.lib.analysis.configuredtargets.RuleConfiguredTarget.Mode.TARGET; |
| import static com.google.devtools.build.lib.collect.nestedset.Order.STABLE_ORDER; |
| |
| import com.google.common.base.Predicates; |
| import com.google.common.collect.ImmutableList; |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.actions.MutableActionGraph.ActionConflictException; |
| import com.google.devtools.build.lib.analysis.ConfiguredTarget; |
| import com.google.devtools.build.lib.analysis.RuleConfiguredTargetBuilder; |
| import com.google.devtools.build.lib.analysis.RuleConfiguredTargetFactory; |
| import com.google.devtools.build.lib.analysis.RuleContext; |
| import com.google.devtools.build.lib.analysis.Runfiles; |
| import com.google.devtools.build.lib.analysis.RunfilesProvider; |
| import com.google.devtools.build.lib.analysis.TransitiveInfoCollection; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSet; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder; |
| |
| /** An implementation for the "proto_library" rule. */ |
| public class BazelProtoLibrary implements RuleConfiguredTargetFactory { |
| |
| @Override |
| public ConfiguredTarget create(RuleContext ruleContext) |
| throws InterruptedException, RuleErrorException, ActionConflictException { |
| ImmutableList<Artifact> protoSources = |
| ruleContext.getPrerequisiteArtifacts("srcs", TARGET).list(); |
| NestedSet<Artifact> checkDepsProtoSources = |
| ProtoCommon.getCheckDepsProtoSources(ruleContext, protoSources); |
| ProtoCommon.checkSourceFilesAreInSamePackage(ruleContext); |
| |
| NestedSet<Artifact> transitiveImports = |
| ProtoCommon.collectTransitiveImports(ruleContext, protoSources); |
| NestedSet<String> protoPathFlags = ProtoCommon.collectTransitiveProtoPathFlags(ruleContext); |
| |
| NestedSet<Artifact> protosInDirectDeps = ProtoCommon.computeProtosInDirectDeps(ruleContext); |
| |
| final SupportData supportData = |
| SupportData.create( |
| /* nonWeakDepsPredicate= */ Predicates.<TransitiveInfoCollection>alwaysTrue(), |
| protoSources, |
| protosInDirectDeps, |
| transitiveImports, |
| protoPathFlags, |
| !protoSources.isEmpty()); |
| |
| Artifact descriptorSetOutput = |
| ruleContext.getGenfilesArtifact( |
| ruleContext.getLabel().getName() + "-descriptor-set.proto.bin"); |
| NestedSet<Artifact> dependenciesDescriptorSets = |
| ProtoCommon.collectDependenciesDescriptorSets(ruleContext); |
| NestedSet<Artifact> transitiveDescriptorSetOutput = |
| NestedSetBuilder.fromNestedSet(dependenciesDescriptorSets).add(descriptorSetOutput).build(); |
| |
| ProtoCompileActionBuilder.writeDescriptorSet( |
| ruleContext, |
| descriptorSetOutput.getExecPathString(), |
| protoSources, |
| transitiveImports, |
| protosInDirectDeps, |
| descriptorSetOutput, |
| /* allowServices= */ true, |
| dependenciesDescriptorSets, |
| protoPathFlags); |
| |
| Runfiles dataRunfiles = |
| ProtoCommon.createDataRunfilesProvider(transitiveImports, ruleContext) |
| .addArtifact(descriptorSetOutput) |
| .build(); |
| |
| // TODO(bazel-team): this second constructor argument is superfluous and should be removed. |
| ProtoSourcesProvider sourcesProvider = |
| ProtoSourcesProvider.create( |
| transitiveImports, |
| transitiveImports, |
| protoSources, |
| checkDepsProtoSources, |
| descriptorSetOutput, |
| transitiveDescriptorSetOutput, |
| protoPathFlags); |
| |
| return new RuleConfiguredTargetBuilder(ruleContext) |
| .setFilesToBuild(NestedSetBuilder.create(STABLE_ORDER, descriptorSetOutput)) |
| .addProvider(RunfilesProvider.withData(Runfiles.EMPTY, dataRunfiles)) |
| .addProvider(ProtoSourcesProvider.class, sourcesProvider) |
| .addProvider(ProtoSupportDataProvider.class, new ProtoSupportDataProvider(supportData)) |
| .addSkylarkTransitiveInfo(ProtoSourcesProvider.SKYLARK_NAME, sourcesProvider) |
| .build(); |
| } |
| } |