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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.google.common.base.Stopwatch;
import com.google.common.base.Strings;
import com.google.devtools.build.android.AndroidResourceMerger.MergingException;
import com.google.devtools.build.android.AndroidResourceProcessor.AaptConfigOptions;
import com.google.devtools.build.android.Converters.PathConverter;
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.IOException;
import java.nio.file.FileSystems;
import java.nio.file.Path;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Generates the R class for an android_library with made up field initializers for the ids. The
* real ids will be assigned when the android_binary is built.
*
* <p>Collects the R class fields from the parsed resource, and then writes out the resource class
* files to a jar.
*/
public class LibraryRClassGeneratorAction {
private static final Logger logger =
Logger.getLogger(LibraryRClassGeneratorAction.class.getName());
/** Flag specifications for this action. */
public static final class Options extends OptionsBase {
@Option(
name = "classJarOutput",
defaultValue = "null",
converter = PathConverter.class,
documentationCategory = OptionDocumentationCategory.UNCATEGORIZED,
effectTags = {OptionEffectTag.UNKNOWN},
category = "output",
help = "Path for the generated java class jar."
)
public Path classJarOutput;
@Option(
name = "packageForR",
defaultValue = "null",
documentationCategory = OptionDocumentationCategory.UNCATEGORIZED,
effectTags = {OptionEffectTag.UNKNOWN},
category = "config",
help = "Custom java package to generate the R symbols files."
)
public String packageForR;
@Option(
name = "symbol",
allowMultiple = true,
defaultValue = "",
converter = PathConverter.class,
documentationCategory = OptionDocumentationCategory.UNCATEGORIZED,
effectTags = {OptionEffectTag.UNKNOWN},
category = "config",
help = "Parsed symbol binaries to write as R classes."
)
public List<Path> symbols;
@Option(
name = "targetLabel",
defaultValue = "null",
category = "input",
documentationCategory = OptionDocumentationCategory.UNCATEGORIZED,
effectTags = {OptionEffectTag.UNKNOWN},
help = "A label to add to the output jar's manifest as 'Target-Label'"
)
public String targetLabel;
@Option(
name = "injectingRuleKind",
defaultValue = "null",
category = "input",
documentationCategory = OptionDocumentationCategory.UNCATEGORIZED,
effectTags = {OptionEffectTag.UNKNOWN},
help = "A string to add to the output jar's manifest as 'Injecting-Rule-Kind'"
)
public String injectingRuleKind;
}
public static void main(String[] args) throws Exception {
final Stopwatch timer = Stopwatch.createStarted();
OptionsParser optionsParser =
OptionsParser.newOptionsParser(Options.class, AaptConfigOptions.class);
optionsParser.enableParamsFileSupport(
new ShellQuotedParamsFilePreProcessor(FileSystems.getDefault()));
optionsParser.parseAndExitUponError(args);
AaptConfigOptions aaptConfigOptions = optionsParser.getOptions(AaptConfigOptions.class);
Options options = optionsParser.getOptions(Options.class);
logger.fine(
String.format("Option parsing finished at %sms", timer.elapsed(TimeUnit.MILLISECONDS)));
try (ScopedTemporaryDirectory scopedTmp =
new ScopedTemporaryDirectory("android_resource_generated")) {
AndroidResourceClassWriter resourceClassWriter =
AndroidResourceClassWriter.createWith(
aaptConfigOptions.androidJar,
scopedTmp.getPath(),
Strings.nullToEmpty(options.packageForR));
resourceClassWriter.setIncludeClassFile(true);
resourceClassWriter.setIncludeJavaFile(false);
logger.fine(String.format("Setup finished at %sms", timer.elapsed(TimeUnit.MILLISECONDS)));
final ParsedAndroidData data =
AndroidParsedDataDeserializer.deserializeSymbolsToData(options.symbols);
logger.fine(
String.format("Deserialization finished at %sms", timer.elapsed(TimeUnit.MILLISECONDS)));
data.writeResourcesTo(resourceClassWriter);
resourceClassWriter.flush();
logger.fine(
String.format("R writing finished at %sms", timer.elapsed(TimeUnit.MILLISECONDS)));
AndroidResourceOutputs.createClassJar(
scopedTmp.getPath(),
options.classJarOutput,
options.targetLabel,
options.injectingRuleKind);
logger.fine(
String.format(
"Creating class jar finished at %sms", timer.elapsed(TimeUnit.MILLISECONDS)));
} catch (IOException | MergingException | DeserializationException e) {
logger.log(Level.SEVERE, "Errors during R generation.", e);
throw e;
}
}
}
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