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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.android;
import com.google.common.base.Preconditions;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.RuleConfiguredTarget.Mode;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.actions.ActionConstructionContext;
import com.google.devtools.build.lib.analysis.actions.CustomCommandLine;
import com.google.devtools.build.lib.analysis.actions.SpawnAction;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import java.util.ArrayList;
import java.util.List;
/**
* Builder for creating $android_resource_validator action. This action validates merged resources
* of an android_library via aapt, and writes out an R.txt file (mostly to serve as a dependency for
* the android_binary -- otherwise the merger step could have generated the R.txt).
*
* <p>This is split from merging, so that it can happen off of the compilation critical path.
*/
class AndroidResourceValidatorActionBuilder {
private final RuleContext ruleContext;
private final AndroidSdkProvider sdk;
// Inputs
private ResourceContainer primary;
private Artifact mergedResources;
// Outputs
private Artifact rTxtOut;
private Artifact sourceJarOut;
// Flags
private String customJavaPackage;
private boolean debug;
/** @param ruleContext The RuleContext that was used to create the SpawnAction.Builder. */
public AndroidResourceValidatorActionBuilder(RuleContext ruleContext) {
this.ruleContext = ruleContext;
this.sdk = AndroidSdkProvider.fromRuleContext(ruleContext);
}
/** The primary resource container. We mostly propagate its values, but update the R.txt. */
public AndroidResourceValidatorActionBuilder withPrimary(ResourceContainer primary) {
this.primary = primary;
return this;
}
public AndroidResourceValidatorActionBuilder setMergedResources(Artifact mergedResources) {
this.mergedResources = mergedResources;
return this;
}
public AndroidResourceValidatorActionBuilder setJavaPackage(String customJavaPackage) {
this.customJavaPackage = customJavaPackage;
return this;
}
public AndroidResourceValidatorActionBuilder setDebug(boolean debug) {
this.debug = debug;
return this;
}
public AndroidResourceValidatorActionBuilder setRTxtOut(Artifact rTxtOut) {
this.rTxtOut = rTxtOut;
return this;
}
public AndroidResourceValidatorActionBuilder setSourceJarOut(Artifact sourceJarOut) {
this.sourceJarOut = sourceJarOut;
return this;
}
public ResourceContainer build(ActionConstructionContext context) {
CustomCommandLine.Builder builder = new CustomCommandLine.Builder();
if (!Strings.isNullOrEmpty(sdk.getBuildToolsVersion())) {
builder.add("--buildToolsVersion").add(sdk.getBuildToolsVersion());
}
builder.addExecPath("--aapt", sdk.getAapt().getExecutable());
// Use a FluentIterable to avoid flattening the NestedSets
NestedSetBuilder<Artifact> inputs = NestedSetBuilder.naiveLinkOrder();
inputs.addAll(
ruleContext
.getExecutablePrerequisite("$android_resource_validator", Mode.HOST)
.getRunfilesSupport()
.getRunfilesArtifactsWithoutMiddlemen());
builder.addExecPath("--annotationJar", sdk.getAnnotationsJar());
inputs.add(sdk.getAnnotationsJar());
builder.addExecPath("--androidJar", sdk.getAndroidJar());
inputs.add(sdk.getAndroidJar());
Preconditions.checkNotNull(mergedResources);
builder.addExecPath("--mergedResources", mergedResources);
inputs.add(mergedResources);
builder.addExecPath("--manifest", primary.getManifest());
inputs.add(primary.getManifest());
if (debug) {
builder.add("--debug");
}
if (!Strings.isNullOrEmpty(customJavaPackage)) {
// Sets an alternative java package for the generated R.java
// this allows android rules to generate resources outside of the java{,tests} tree.
builder.add("--packageForR").add(customJavaPackage);
}
List<Artifact> outs = new ArrayList<>();
Preconditions.checkNotNull(rTxtOut);
builder.addExecPath("--rOutput", rTxtOut);
outs.add(rTxtOut);
Preconditions.checkNotNull(sourceJarOut);
builder.addExecPath("--srcJarOutput", sourceJarOut);
outs.add(sourceJarOut);
SpawnAction.Builder spawnActionBuilder = new SpawnAction.Builder();
// Create the spawn action.
ruleContext.registerAction(
spawnActionBuilder
.addTool(sdk.getAapt())
.addTransitiveInputs(inputs.build())
.addOutputs(ImmutableList.copyOf(outs))
.setCommandLine(builder.build())
.setExecutable(
ruleContext.getExecutablePrerequisite("$android_resource_validator", Mode.HOST))
.setProgressMessage("Validating Android resources for " + ruleContext.getLabel())
.setMnemonic("AndroidResourceValidator")
.build(context));
// Return the full set of validated transitive dependencies.
return primary.toBuilder()
.setJavaSourceJar(sourceJarOut)
.setRTxt(rTxtOut)
.build();
}
}
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