/*
* Copyright (C) 2009 The Android Open Source Project
*
* 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 dalvik.runner;
import java.io.File;
import java.util.logging.Logger;
/**
* A dx command.
*/
final class Dx {
private static final Logger logger = Logger.getLogger(Dx.class.getName());
private static final Md5Cache DEX_CACHE = new Md5Cache("dex");
/**
* Converts all the .class files on 'classpath' into a dex file written to 'output'.
*/
public void dex(File output, Classpath classpath) {
File key = DEX_CACHE.makeKey(classpath);
if (key != null && key.exists()) {
logger.fine("dex cache hit for " + classpath);
new Command.Builder().args("cp", key, output).execute();
return;
}
/*
* We pass --core-library so that we can write tests in the
* same package they're testing, even when that's a core
* library package. If you're actually just using this tool to
* execute arbitrary code, this has the unfortunate
* side-effect of preventing "dx" from protecting you from
* yourself.
*
* Memory options pulled from build/core/definitions.mk to
* handle large dx input when building dex for APK.
*/
new Command.Builder()
.args("dx")
.args("-JXms16M")
.args("-JXmx1536M")
.args("--dex")
.args("--output=" + output)
.args("--core-library")
.args(Strings.objectsToStrings(classpath.getElements()))
.execute();
DEX_CACHE.insert(key, output);
}
}