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// Copyright (c) 2017, the R8 project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
package com.android.tools.r8;
import static com.android.tools.r8.utils.FileUtils.isArchive;
import com.android.tools.r8.graph.DexItemFactory;
import com.android.tools.r8.utils.AndroidApp;
import com.android.tools.r8.utils.InternalOptions;
import com.android.tools.r8.utils.OffOrAuto;
import com.android.tools.r8.utils.OutputMode;
import com.android.tools.r8.utils.PreloadedClassFileProvider;
import com.google.common.collect.ImmutableList;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.Collection;
/**
* Immutable command structure for an invocation of the {@code D8} compiler.
*
* <p>To build a D8 command use the {@code D8Command.Builder} class. For example:
*
* <pre>
* D8Command command = D8Command.builder()
* .addProgramFiles(path1, path2)
* .setMode(CompilationMode.RELEASE)
* .build();
* </pre>
*/
public class D8Command extends BaseCommand {
/**
* Builder for constructing a D8Command.
*/
public static class Builder extends BaseCommand.Builder<D8Command, Builder> {
private Builder() {
super(CompilationMode.DEBUG);
}
private Builder(AndroidApp app) {
super(app, CompilationMode.DEBUG);
}
/** Add classpath file resources. */
public Builder addClasspathFiles(Path... files) throws IOException {
return addClasspathFiles(Arrays.asList(files));
}
/** Add classpath file resources. */
public Builder addClasspathFiles(Collection<Path> files) throws IOException {
for (Path file : files) {
if (isArchive(file)) {
addClasspathResourceProvider(PreloadedClassFileProvider.fromArchive(file));
} else {
super.addClasspathFiles(file);
}
}
return this;
}
/** Add library file resources. */
public Builder addLibraryFiles(Path... files) throws IOException {
return addLibraryFiles(Arrays.asList(files));
}
/** Add library file resources. */
public Builder addLibraryFiles(Collection<Path> files) throws IOException {
for (Path file : files) {
if (isArchive(file)) {
addLibraryResourceProvider(PreloadedClassFileProvider.fromArchive(file));
} else {
super.addLibraryFiles(file);
}
}
return this;
}
public Builder addClasspathResourceProvider(ClassFileResourceProvider provider) {
getAppBuilder().addClasspathResourceProvider(provider);
return this;
}
public Builder addLibraryResourceProvider(ClassFileResourceProvider provider) {
getAppBuilder().addLibraryResourceProvider(provider);
return this;
}
@Override
Builder self() {
return this;
}
/**
* Build the final D8Command.
*/
@Override
public D8Command build() throws CompilationException {
if (isPrintHelp() || isPrintVersion()) {
return new D8Command(isPrintHelp(), isPrintVersion());
}
validate();
return new D8Command(
getAppBuilder().build(), getOutputPath(), getOutputMode(), getMode(), getMinApiLevel());
}
}
static final String USAGE_MESSAGE = String.join("\n", ImmutableList.of(
"Usage: d8 [options] <input-files>",
" where <input-files> are any combination of dex, class, zip, jar, or apk files",
" and options are:",
" --debug # Compile with debugging information (default).",
" --release # Compile without debugging information.",
" --output <file> # Output result in <outfile>.",
" # <file> must be an existing directory or a zip file.",
" --lib <file> # Add <file> as a library resource.",
" --classpath <file> # Add <file> as a classpath resource.",
" --min-api # Minimum Android API level compatibility",
" --file-per-class # Produce a separate dex file per class",
" --version # Print the version of d8.",
" --help # Print this message."));
public static Builder builder() {
return new Builder();
}
// Internal builder to start from an existing AndroidApp.
static Builder builder(AndroidApp app) {
return new Builder(app);
}
public static Builder parse(String[] args) throws CompilationException, IOException {
CompilationMode modeSet = null;
Path outputPath = null;
Builder builder = builder();
for (int i = 0; i < args.length; i++) {
String arg = args[i].trim();
if (arg.length() == 0) {
continue;
} else if (arg.equals("--help")) {
builder.setPrintHelp(true);
} else if (arg.equals("--version")) {
builder.setPrintVersion(true);
} else if (arg.equals("--debug")) {
if (modeSet == CompilationMode.RELEASE) {
throw new CompilationException("Cannot compile in both --debug and --release mode.");
}
builder.setMode(CompilationMode.DEBUG);
modeSet = CompilationMode.DEBUG;
} else if (arg.equals("--release")) {
if (modeSet == CompilationMode.DEBUG) {
throw new CompilationException("Cannot compile in both --debug and --release mode.");
}
builder.setMode(CompilationMode.RELEASE);
modeSet = CompilationMode.RELEASE;
} else if (arg.equals("--file-per-class")) {
builder.setOutputMode(OutputMode.FilePerClass);
} else if (arg.equals("--output")) {
String output = args[++i];
if (outputPath != null) {
throw new CompilationException(
"Cannot output both to '" + outputPath.toString() + "' and '" + output + "'");
}
outputPath = Paths.get(output);
} else if (arg.equals("--lib")) {
builder.addLibraryFiles(Paths.get(args[++i]));
} else if (arg.equals("--classpath")) {
builder.addClasspathFiles(Paths.get(args[++i]));
} else if (arg.equals("--min-api")) {
builder.setMinApiLevel(Integer.valueOf(args[++i]));
} else {
if (arg.startsWith("--")) {
throw new CompilationException("Unknown option: " + arg);
}
builder.addProgramFiles(Paths.get(arg));
}
}
return builder.setOutputPath(outputPath);
}
private D8Command(
AndroidApp inputApp,
Path outputPath,
OutputMode outputMode,
CompilationMode mode,
int minApiLevel) {
super(inputApp, outputPath, outputMode, mode, minApiLevel);
}
private D8Command(boolean printHelp, boolean printVersion) {
super(printHelp, printVersion);
}
@Override
InternalOptions getInternalOptions() {
InternalOptions internal = new InternalOptions(new DexItemFactory());
assert !internal.debug;
internal.debug = getMode() == CompilationMode.DEBUG;
internal.minApiLevel = getMinApiLevel();
// Assert and fixup defaults.
assert !internal.skipMinification;
internal.skipMinification = true;
assert internal.useTreeShaking;
internal.useTreeShaking = false;
assert internal.interfaceMethodDesugaring == OffOrAuto.Off;
assert internal.tryWithResourcesDesugaring == OffOrAuto.Off;
assert internal.allowAccessModification;
internal.allowAccessModification = false;
assert internal.inlineAccessors;
internal.inlineAccessors = false;
assert internal.removeSwitchMaps;
internal.removeSwitchMaps = false;
assert internal.outline.enabled;
internal.outline.enabled = false;
internal.outputMode = getOutputMode();
return internal;
}
}
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