com.google.devtools.build.android.CompileLibraryResourcesAction.java Source code

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Here is the source code for com.google.devtools.build.android.CompileLibraryResourcesAction.java

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// Copyright 2017 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.android;

import com.android.repository.Revision;
import com.google.common.base.Preconditions;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.devtools.build.android.Converters.ExistingPathConverter;
import com.google.devtools.build.android.Converters.PathConverter;
import com.google.devtools.build.android.Converters.RevisionConverter;
import com.google.devtools.build.android.Converters.UnvalidatedAndroidDirectoriesConverter;
import com.google.devtools.build.android.aapt2.ResourceCompiler;
import com.google.devtools.common.options.Option;
import com.google.devtools.common.options.OptionDocumentationCategory;
import com.google.devtools.common.options.OptionEffectTag;
import com.google.devtools.common.options.OptionsBase;
import com.google.devtools.common.options.OptionsParser;
import com.google.devtools.common.options.ShellQuotedParamsFilePreProcessor;
import java.io.Closeable;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.logging.Logger;

/** Compiles resources using aapt2 and archives them to zip. */
public class CompileLibraryResourcesAction {
    /** Flag specifications for this action. */
    public static final class Options extends OptionsBase {

        @Option(documentationCategory = OptionDocumentationCategory.UNCATEGORIZED, effectTags = {
                OptionEffectTag.UNKNOWN }, name = "resources", defaultValue = "null", converter = UnvalidatedAndroidDirectoriesConverter.class, category = "input", help = "The resources to compile with aapt2.")
        public UnvalidatedAndroidDirectories resources;

        @Option(documentationCategory = OptionDocumentationCategory.UNCATEGORIZED, effectTags = {
                OptionEffectTag.UNKNOWN }, name = "output", defaultValue = "null", converter = PathConverter.class, category = "output", help = "Path to write the zip of compiled resources.")
        public Path output;

        @Option(documentationCategory = OptionDocumentationCategory.UNCATEGORIZED, effectTags = {
                OptionEffectTag.UNKNOWN }, name = "aapt2", defaultValue = "null", converter = ExistingPathConverter.class, category = "tool", help = "Aapt2 tool location for resource compilation.")
        public Path aapt2;

        @Option(documentationCategory = OptionDocumentationCategory.UNCATEGORIZED, effectTags = {
                OptionEffectTag.UNKNOWN }, name = "buildToolsVersion", defaultValue = "null", converter = RevisionConverter.class, category = "config", help = "Version of the build tools (e.g. aapt) being used, e.g. 23.0.2")
        public Revision buildToolsVersion;

        @Option(documentationCategory = OptionDocumentationCategory.UNCATEGORIZED, effectTags = {
                OptionEffectTag.UNKNOWN }, name = "packagePath", defaultValue = "null", category = "input", help = "The package path of the library being processed."
                        + " This value is required for processing data binding.")
        public String packagePath;

        @Option(documentationCategory = OptionDocumentationCategory.UNCATEGORIZED, effectTags = {
                OptionEffectTag.UNKNOWN }, name = "manifest", defaultValue = "null", category = "input", converter = ExistingPathConverter.class, help = "The manifest of the library being processed."
                        + " This value is required for processing data binding.")
        public Path manifest;

        @Option(documentationCategory = OptionDocumentationCategory.UNCATEGORIZED, effectTags = {
                OptionEffectTag.UNKNOWN }, name = "dataBindingInfoOut", defaultValue = "null", category = "output", converter = PathConverter.class, help = "Path for the derived data binding metadata."
                        + " This value is required for processing data binding.")
        public Path dataBindingInfoOut;
    }

    static final Logger logger = Logger.getLogger(CompileLibraryResourcesAction.class.getName());

    public static void main(String[] args) throws Exception {
        OptionsParser optionsParser = OptionsParser.newOptionsParser(Options.class);
        optionsParser.enableParamsFileSupport(new ShellQuotedParamsFilePreProcessor(FileSystems.getDefault()));
        optionsParser.parseAndExitUponError(args);

        Options options = optionsParser.getOptions(Options.class);

        Preconditions.checkNotNull(options.resources);
        Preconditions.checkNotNull(options.output);
        Preconditions.checkNotNull(options.aapt2);

        final ListeningExecutorService defaultService = ExecutorServiceCloser.createDefaultService();
        try (Closeable serviceCloser = ExecutorServiceCloser.createWith(defaultService);
                ScopedTemporaryDirectory scopedTmp = new ScopedTemporaryDirectory("android_resources_tmp")) {
            final Path tmp = scopedTmp.getPath();
            final Path databindingResourcesRoot = Files
                    .createDirectories(tmp.resolve("android_data_binding_resources"));
            final Path compiledResources = Files.createDirectories(tmp.resolve("compiled"));

            final ResourceCompiler compiler = ResourceCompiler.create(defaultService, compiledResources,
                    options.aapt2, options.buildToolsVersion);
            options.resources.toData(options.manifest)
                    .processDataBindings(options.dataBindingInfoOut, options.packagePath, databindingResourcesRoot)
                    .compile(compiler, compiledResources).copyResourcesZipTo(options.output);
        }
    }
}