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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 static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.rules.android.AndroidConfiguration.AndroidAaptVersion;
import java.util.Collections;
import java.util.List;
/** Builder for creating resource shrinker actions. */
public class ResourceShrinkerActionBuilder {
private AndroidAaptVersion targetAaptVersion;
private Artifact resourceFilesZip;
private Artifact shrunkJar;
private Artifact proguardMapping;
private ValidatedAndroidResources primaryResources;
private ResourceDependencies dependencyResources;
private Artifact resourceApkOut;
private Artifact shrunkResourcesOut;
private Artifact logOut;
private List<String> uncompressedExtensions = Collections.emptyList();
private ResourceFilterFactory resourceFilterFactory = ResourceFilterFactory.empty();
public ResourceShrinkerActionBuilder setUncompressedExtensions(
List<String> uncompressedExtensions) {
this.uncompressedExtensions = uncompressedExtensions;
return this;
}
/** @param resourceFilterFactory The filters to apply to the resources. */
public ResourceShrinkerActionBuilder setResourceFilterFactory(
ResourceFilterFactory resourceFilterFactory) {
this.resourceFilterFactory = resourceFilterFactory;
return this;
}
/** @param resourceFilesZip A zip file containing the merged assets and resources to be shrunk. */
public ResourceShrinkerActionBuilder withResourceFiles(Artifact resourceFilesZip) {
this.resourceFilesZip = resourceFilesZip;
return this;
}
/** @param shrunkJar The deploy jar of the rule after a dead code removal Proguard pass. */
public ResourceShrinkerActionBuilder withShrunkJar(Artifact shrunkJar) {
this.shrunkJar = shrunkJar;
return this;
}
/** @param proguardMapping The Proguard mapping between obfuscated and original code. */
public ResourceShrinkerActionBuilder withProguardMapping(Artifact proguardMapping) {
this.proguardMapping = proguardMapping;
return this;
}
/**
* @param primary The fully processed {@link ValidatedAndroidResources} of the resources to be
* shrunk. Must contain both an R.txt and merged manifest.
*/
public ResourceShrinkerActionBuilder withPrimary(ValidatedAndroidResources primary) {
checkNotNull(primary);
checkNotNull(primary.getManifest());
checkNotNull(primary.getRTxt());
this.primaryResources = primary;
return this;
}
/** @param resourceDeps The full dependency tree of resources. */
public ResourceShrinkerActionBuilder withDependencies(ResourceDependencies resourceDeps) {
this.dependencyResources = resourceDeps;
return this;
}
/** @param resourceApkOut The location to write the shrunk resource ap_ package. */
public ResourceShrinkerActionBuilder setResourceApkOut(Artifact resourceApkOut) {
this.resourceApkOut = resourceApkOut;
return this;
}
/** @param shrunkResourcesOut The location to write the shrunk resource files zip. */
public ResourceShrinkerActionBuilder setShrunkResourcesOut(Artifact shrunkResourcesOut) {
this.shrunkResourcesOut = shrunkResourcesOut;
return this;
}
/** @param logOut The location to write the shrinker log. */
public ResourceShrinkerActionBuilder setLogOut(Artifact logOut) {
this.logOut = logOut;
return this;
}
/** @param androidAaptVersion The aapt version to target with this action. */
public ResourceShrinkerActionBuilder setTargetAaptVersion(AndroidAaptVersion androidAaptVersion) {
this.targetAaptVersion = androidAaptVersion;
return this;
}
public Artifact build(AndroidDataContext dataContext) {
checkNotNull(resourceFilesZip);
checkNotNull(shrunkJar);
checkNotNull(proguardMapping);
checkNotNull(primaryResources);
checkNotNull(primaryResources.getRTxt());
checkNotNull(primaryResources.getManifest());
checkNotNull(resourceApkOut);
BusyBoxActionBuilder builder;
if (targetAaptVersion == AndroidAaptVersion.AAPT2) {
builder = BusyBoxActionBuilder.create(dataContext, "SHRINK_AAPT2");
} else {
builder = BusyBoxActionBuilder.create(dataContext, "SHRINK");
}
builder
.addAapt(targetAaptVersion)
.addAndroidJar()
.maybeAddVectoredFlag("--uncompressedExtensions", uncompressedExtensions)
.maybeAddFlag("--debug", dataContext.useDebug())
.maybeAddFlag("--resourceConfigs", resourceFilterFactory.getConfigurationFilterString())
.addInput("--resources", resourceFilesZip)
.addInput("--shrunkJar", shrunkJar)
.addInput("--proguardMapping", proguardMapping)
.addInput("--rTxt", primaryResources.getRTxt())
.addInput("--primaryManifest", primaryResources.getManifest())
.maybeAddInput("--dependencyManifest", getManifests(dependencyResources))
.addVectoredFlag(
"--resourcePackages", getResourcePackages(primaryResources, dependencyResources))
.addOutput("--shrunkResourceApk", resourceApkOut)
.addOutput("--shrunkResources", shrunkResourcesOut)
.addOutput("--log", logOut)
.buildAndRegister("Shrinking resources", "ResourceShrinker");
return resourceApkOut;
}
private ImmutableList<Artifact> getManifests(ResourceDependencies resourceDependencies) {
ImmutableList.Builder<Artifact> manifests = ImmutableList.builder();
for (ValidatedAndroidResources resources : resourceDependencies.getResourceContainers()) {
if (resources.getManifest() != null) {
manifests.add(resources.getManifest());
}
}
return manifests.build();
}
private ImmutableList<String> getResourcePackages(
ValidatedAndroidResources primaryResources, ResourceDependencies resourceDependencies) {
ImmutableList.Builder<String> resourcePackages = ImmutableList.builder();
resourcePackages.add(primaryResources.getJavaPackage());
for (ValidatedAndroidResources resources : resourceDependencies.getResourceContainers()) {
resourcePackages.add(resources.getJavaPackage());
}
return resourcePackages.build();
}
}
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