blob: 4224ad8ef22583b9eea2c3164679d792a803a97f [file] [log] [blame]
// Copyright (c) 2019, 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 com.android.tools.r8.D8CommandParser.OrderedClassFileResourceProvider;
import com.android.tools.r8.origin.Origin;
import com.android.tools.r8.utils.AndroidApiLevel;
import com.android.tools.r8.utils.FlagFile;
import com.android.tools.r8.utils.StringDiagnostic;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.Set;
public class L8CommandParser extends BaseCompilerCommandParser<L8Command, L8Command.Builder> {
private static final Set<String> OPTIONS_WITH_PARAMETER =
ImmutableSet.of(
"--output",
"--lib",
MIN_API_FLAG,
"--desugared-lib",
THREAD_COUNT_FLAG,
"--pg-conf",
"--pg-map-output");
public static void main(String[] args) throws CompilationFailedException {
L8Command command = parse(args, Origin.root()).build();
if (command.isPrintHelp()) {
System.out.println(USAGE_MESSAGE);
} else {
L8.run(command);
}
}
static final String USAGE_MESSAGE =
String.join(
"\n",
Iterables.concat(
Arrays.asList(
"Usage: l8 [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|jdk-home> # Add <file|jdk-home> as a library resource.",
" "
+ MIN_API_FLAG
+ " <number> "
+ "# Minimum Android API level compatibility, default: "
+ AndroidApiLevel.getDefault().getLevel()
+ ".",
" --pg-conf <file> # Proguard configuration <file>.",
" --pg-map-output <file> # Output the resulting name and line mapping to"
+ " <file>.",
" --desugared-lib <file> # Specify desugared library configuration.",
" # <file> is a desugared library configuration"
+ " (json)."),
ASSERTIONS_USAGE_MESSAGE,
THREAD_COUNT_USAGE_MESSAGE,
MAP_DIAGNOSTICS_USAGE_MESSAGE,
Arrays.asList(
" --version # Print the version of l8.",
" --help # Print this message.")));
/**
* Parse the D8 command-line.
*
* <p>Parsing will set the supplied options or their default value if they have any.
*
* @param args Command-line arguments array.
* @param origin Origin description of the command-line arguments.
* @return D8 command builder with state set up according to parsed command line.
*/
public static L8Command.Builder parse(String[] args, Origin origin) {
return new L8CommandParser().parse(args, origin, L8Command.builder());
}
/**
* Parse the D8 command-line.
*
* <p>Parsing will set the supplied options or their default value if they have any.
*
* @param args Command-line arguments array.
* @param origin Origin description of the command-line arguments.
* @param handler Custom defined diagnostics handler.
* @return D8 command builder with state set up according to parsed command line.
*/
public static L8Command.Builder parse(String[] args, Origin origin, DiagnosticsHandler handler) {
return new L8CommandParser().parse(args, origin, L8Command.builder(handler));
}
private L8Command.Builder parse(String[] args, Origin origin, L8Command.Builder builder) {
CompilationMode compilationMode = null;
Path outputPath = null;
OutputMode outputMode = OutputMode.DexIndexed;
boolean hasDefinedApiLevel = false;
OrderedClassFileResourceProvider.Builder classpathBuilder =
OrderedClassFileResourceProvider.builder();
String[] expandedArgs = FlagFile.expandFlagFiles(args, builder::error);
for (int i = 0; i < expandedArgs.length; i++) {
String arg = expandedArgs[i].trim();
String nextArg = null;
if (OPTIONS_WITH_PARAMETER.contains(arg)) {
if (++i < expandedArgs.length) {
nextArg = expandedArgs[i];
} else {
builder.error(
new StringDiagnostic("Missing parameter for " + expandedArgs[i - 1] + ".", origin));
break;
}
}
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 (compilationMode == CompilationMode.RELEASE) {
builder.error(
new StringDiagnostic("Cannot compile in both --debug and --release mode.", origin));
continue;
}
compilationMode = CompilationMode.DEBUG;
} else if (arg.equals("--release")) {
if (compilationMode == CompilationMode.DEBUG) {
builder.error(
new StringDiagnostic("Cannot compile in both --debug and --release mode.", origin));
continue;
}
compilationMode = CompilationMode.RELEASE;
} else if (arg.equals("--output")) {
if (outputPath != null) {
builder.error(
new StringDiagnostic(
"Cannot output both to '" + outputPath.toString() + "' and '" + nextArg + "'",
origin));
continue;
}
outputPath = Paths.get(nextArg);
} else if (arg.equals(MIN_API_FLAG)) {
if (hasDefinedApiLevel) {
builder.error(
new StringDiagnostic("Cannot set multiple " + MIN_API_FLAG + " options", origin));
} else {
parsePositiveIntArgument(
builder::error, MIN_API_FLAG, nextArg, origin, builder::setMinApiLevel);
hasDefinedApiLevel = true;
}
} else if (arg.equals("--lib")) {
addLibraryArgument(builder, origin, nextArg);
} else if (arg.equals("--pg-conf")) {
builder.addProguardConfigurationFiles(Paths.get(nextArg));
} else if (arg.equals("--pg-map-output")) {
builder.setProguardMapOutputPath(Paths.get(nextArg));
} else if (arg.equals("--desugared-lib")) {
builder.addDesugaredLibraryConfiguration(StringResource.fromFile(Paths.get(nextArg)));
} else if (arg.equals("--classfile")) {
outputMode = OutputMode.ClassFile;
} else if (arg.equals(THREAD_COUNT_FLAG)) {
parsePositiveIntArgument(
builder::error, THREAD_COUNT_FLAG, nextArg, origin, builder::setThreadCount);
} else if (arg.startsWith("--")) {
if (tryParseAssertionArgument(builder, arg, origin)) {
continue;
}
int argsConsumed = tryParseMapDiagnostics(builder, arg, expandedArgs, i, origin);
if (argsConsumed >= 0) {
i += argsConsumed;
continue;
}
argsConsumed = tryParseDump(builder, arg, expandedArgs, i, origin);
if (argsConsumed >= 0) {
i += argsConsumed;
continue;
}
builder.error(new StringDiagnostic("Unknown option: " + arg, origin));
} else {
builder.addProgramFiles(Paths.get(arg));
}
}
if (!classpathBuilder.isEmpty()) {
builder.addClasspathResourceProvider(classpathBuilder.build());
}
if (compilationMode != null) {
builder.setMode(compilationMode);
}
if (outputPath == null) {
outputPath = Paths.get(".");
}
return builder.setOutput(outputPath, outputMode);
}
}