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// 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.rules.objc;
import static com.google.devtools.build.lib.rules.objc.XcodeProductType.LIBRARY_STATIC;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.ConfiguredTarget;
import com.google.devtools.build.lib.analysis.RuleConfiguredTarget.Mode;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.packages.RuleClass.ConfiguredTargetFactory.RuleErrorException;
import com.google.devtools.build.lib.rules.RuleConfiguredTargetFactory;
import com.google.devtools.build.lib.rules.objc.ProtoSupport.TargetType;
/**
* Implementation for the "objc_proto_library" rule.
*/
public class ObjcProtoLibrary implements RuleConfiguredTargetFactory {
@Override
public ConfiguredTarget create(final RuleContext ruleContext)
throws InterruptedException, RuleErrorException {
ProtoAttributes attributes = new ProtoAttributes(ruleContext);
attributes.validate();
if (attributes.hasPortableProtoFilters()) {
return createProtobufTarget(ruleContext);
} else {
return createProtocolBuffers2Target(ruleContext);
}
}
private ConfiguredTarget createProtobufTarget(RuleContext ruleContext)
throws InterruptedException, RuleErrorException {
NestedSetBuilder<Artifact> filesToBuild = NestedSetBuilder.stableOrder();
XcodeProvider.Builder xcodeProviderBuilder = new XcodeProvider.Builder();
ProtoSupport protoSupport =
new ProtoSupport(ruleContext, TargetType.PROTO_TARGET)
.addXcodeProviderOptions(xcodeProviderBuilder)
.addFilesToBuild(filesToBuild)
.registerActions();
ObjcCommon common = protoSupport.getCommon();
filesToBuild.addAll(common.getCompiledArchive().asSet());
new XcodeSupport(ruleContext)
.addFilesToBuild(filesToBuild)
.addXcodeSettings(xcodeProviderBuilder, common.getObjcProvider(), LIBRARY_STATIC)
.addDependencies(
xcodeProviderBuilder, new Attribute(ObjcRuleClasses.PROTO_LIB_ATTR, Mode.TARGET))
.registerActions(xcodeProviderBuilder.build());
boolean experimentalAutoUnion =
ObjcRuleClasses.objcConfiguration(ruleContext).experimentalAutoTopLevelUnionObjCProtos();
CompilationSupport compilationSupport = new CompilationSupport(ruleContext);
// If the experimental flag is not set, or if it's set and doesn't use the protobuf library,
// register the compilation actions, as the output needs to be linked in the final binary.
if (!experimentalAutoUnion) {
compilationSupport.registerCompileAndArchiveActions(common);
} else {
// Even though there is nothing to compile, still generate a module map based on this target
// headers.
compilationSupport.registerGenerateModuleMapAction(common.getCompilationArtifacts());
}
return ObjcRuleClasses.ruleConfiguredTarget(ruleContext, filesToBuild.build())
.addProvider(XcodeProvider.class, xcodeProviderBuilder.build())
.addProvider(ObjcProvider.class, common.getObjcProvider())
.build();
}
private ConfiguredTarget createProtocolBuffers2Target(RuleContext ruleContext)
throws InterruptedException, RuleErrorException {
NestedSetBuilder<Artifact> filesToBuild = NestedSetBuilder.stableOrder();
ProtocolBuffers2Support protoSupport =
new ProtocolBuffers2Support(ruleContext)
.registerGenerationActions()
.registerCompilationActions()
.addFilesToBuild(filesToBuild);
XcodeProvider xcodeProvider = protoSupport.getXcodeProvider();
new XcodeSupport(ruleContext).registerActions(xcodeProvider).addFilesToBuild(filesToBuild);
return ObjcRuleClasses.ruleConfiguredTarget(ruleContext, filesToBuild.build())
.addProvider(ObjcProvider.class, protoSupport.getObjcProvider())
.addProvider(XcodeProvider.class, xcodeProvider)
.build();
}
}
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