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// Copyright 2016 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.ObjcProvider.MULTI_ARCH_LINKED_BINARIES;
import static com.google.devtools.build.lib.rules.objc.ObjcRuleClasses.DylibDependingRule.DYLIBS_ATTR_NAME;
import com.google.common.collect.ImmutableListMultimap;
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.RuleConfiguredTargetBuilder;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.TransitiveInfoCollection;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.rules.RuleConfiguredTargetFactory;
import com.google.devtools.build.lib.rules.apple.AppleConfiguration;
import com.google.devtools.build.lib.rules.apple.Platform;
import com.google.devtools.build.lib.rules.apple.Platform.PlatformType;
import com.google.devtools.build.lib.rules.cpp.CcToolchainProvider;
import com.google.devtools.build.lib.rules.objc.CompilationSupport.ExtraLinkArgs;
import java.util.Map;
import java.util.Set;
/**
* Implementation for the "apple_binary" rule.
*/
public class AppleBinary implements RuleConfiguredTargetFactory {
@Override
public final ConfiguredTarget create(RuleContext ruleContext)
throws InterruptedException, RuleErrorException {
PlatformType platformType = MultiArchSplitTransitionProvider.getPlatformType(ruleContext);
AppleConfiguration appleConfiguration = ruleContext.getFragment(AppleConfiguration.class);
Platform platform = appleConfiguration.getMultiArchPlatform(platformType);
ImmutableListMultimap<BuildConfiguration, ObjcProvider> configurationToNonPropagatedObjcMap =
ruleContext.getPrerequisitesByConfiguration("non_propagated_deps", Mode.SPLIT,
ObjcProvider.class);
ImmutableListMultimap<BuildConfiguration, TransitiveInfoCollection> configToDepsCollectionMap =
ruleContext.getPrerequisitesByConfiguration("deps", Mode.SPLIT);
Iterable<ObjcProvider> dylibProviders =
ruleContext.getPrerequisites(DYLIBS_ATTR_NAME, Mode.TARGET, ObjcProvider.class);
Set<BuildConfiguration> childConfigurations = getChildConfigurations(ruleContext);
Artifact outputArtifact =
ObjcRuleClasses.intermediateArtifacts(ruleContext).combinedArchitectureBinary();
MultiArchBinarySupport multiArchBinarySupport = new MultiArchBinarySupport(ruleContext);
Map<BuildConfiguration, ObjcCommon> objcCommonByDepConfiguration =
multiArchBinarySupport.objcCommonByDepConfiguration(childConfigurations,
configToDepsCollectionMap, configurationToNonPropagatedObjcMap, dylibProviders);
multiArchBinarySupport.registerActions(platform, new ExtraLinkArgs(),
objcCommonByDepConfiguration, configToDepsCollectionMap, outputArtifact);
NestedSetBuilder<Artifact> filesToBuild =
NestedSetBuilder.<Artifact>stableOrder().add(outputArtifact);
RuleConfiguredTargetBuilder targetBuilder =
ObjcRuleClasses.ruleConfiguredTarget(ruleContext, filesToBuild.build());
ObjcProvider.Builder objcProviderBuilder = new ObjcProvider.Builder();
for (ObjcCommon objcCommon : objcCommonByDepConfiguration.values()) {
objcProviderBuilder.addTransitiveAndPropagate(objcCommon.getObjcProvider());
}
objcProviderBuilder.add(MULTI_ARCH_LINKED_BINARIES, outputArtifact);
targetBuilder.addProvider(ObjcProvider.class, objcProviderBuilder.build());
return targetBuilder.build();
}
private Set<BuildConfiguration> getChildConfigurations(RuleContext ruleContext) {
// This is currently a hack to obtain all child configurations regardless of the attribute
// values of this rule -- this rule does not currently use the actual info provided by
// this attribute. b/28403953 tracks cc toolchain usage.
ImmutableListMultimap<BuildConfiguration, CcToolchainProvider> configToProvider =
ruleContext.getPrerequisitesByConfiguration(":cc_toolchain", Mode.SPLIT,
CcToolchainProvider.class);
return configToProvider.keySet();
}
}
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