/*
* dex2jar - Tools to work with android .dex and java .class files
* Copyright (c) 2009-2012 Panxiaobo
*
* 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.googlecode.dex2jar.tools;
import java.io.File;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.lang.reflect.Field;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.charset.StandardCharsets;
import java.nio.file.*;
import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.spi.FileSystemProvider;
import java.util.*;
public abstract class BaseCmd {
public static String getBaseName(String fn) {
int x = fn.lastIndexOf('.');
return x >= 0 ? fn.substring(0, x) : fn;
}
public static String getBaseName(Path fn) {
return getBaseName(fn.getFileName().toString());
}
public interface FileVisitorX {
void visitFile(Path file, Path relative) throws IOException;
}
public static void walkFileTreeX(final Path base, final FileVisitorX fv) throws IOException {
Files.walkFileTree(base, new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
fv.visitFile(file, base.relativize(file));
return super.visitFile(file, attrs);
}
});
}
public static void walkJarOrDir(final Path in, final FileVisitorX fv) throws IOException {
if (Files.isDirectory(in)) {
walkFileTreeX(in, fv);
} else {
try (FileSystem inputFileSystem = openZip(in)) {
walkFileTreeX(inputFileSystem.getPath("/"), fv);
}
}
}
public static void createParentDirectories(Path p) throws IOException {
// merge patch from t3stwhat, fix crash on save to windows path like 'C:\\abc.jar'
Path parent = p.getParent();
if (parent != null && !Files.exists(parent)) {
Files.createDirectories(parent);
}
}
public static FileSystem createZip(Path output) throws IOException {
Map<String, Object> env = new HashMap<>();
env.put("create", "true");
Files.deleteIfExists(output);
createParentDirectories(output);
for (FileSystemProvider p : FileSystemProvider.installedProviders()) {
String s = p.getScheme();
if ("jar".equals(s) || "zip".equalsIgnoreCase(s)) {
return p.newFileSystem(output, env);
}
}
throw new IOException("cant find zipfs support");
}
public static FileSystem openZip(Path in) throws IOException {
for (FileSystemProvider p : FileSystemProvider.installedProviders()) {
String s = p.getScheme();
if ("jar".equals(s) || "zip".equalsIgnoreCase(s)) {
return p.newFileSystem(in, new HashMap<String, Object>());
}
}
throw new IOException("cant find zipfs support");
}
@SuppressWarnings("serial")
protected static class HelpException extends RuntimeException {
public HelpException() {
super();
}
public HelpException(String message) {
super(message);
}
}
@Retention(value = RetentionPolicy.RUNTIME)
@Target(value = { ElementType.FIELD })
static public @interface Opt {
String argName() default "";
String description() default "";
boolean hasArg() default true;
String longOpt() default "";
String opt() default "";
boolean required() default false;
}
static protected class Option implements Comparable<Option> {
public String argName = "arg";
public String description;
public Field field;
public boolean hasArg = true;
public String longOpt;
public String opt;
public boolean required = false;
@Override
public int compareTo(Option o) {
int result = s(this.opt, o.opt);
if (result == 0) {
result = s(this.longOpt, o.longOpt);
if (result == 0) {
result = s(this.argName, o.argName);
if (result == 0) {
result = s(this.description, o.description);
}
}
}
return result;
}
private static int s(String a, String b) {
if (a != null && b != null) {
return a.compareTo(b);
} else if (a != null) {
return 1;
} else if (b != null) {
return -1;
} else {
return 0;
}
}
public String getOptAndLongOpt() {
StringBuilder sb = new StringBuilder();
boolean havePrev = false;
if (opt != null && opt.length() > 0) {
sb.append("-").append(opt);
havePrev = true;
}
if (longOpt != null && longOpt.length() > 0) {
if (havePrev) {
sb.append(",");
}
sb.append("--").append(longOpt);
}
return sb.toString();
}
}
@Retention(value = RetentionPolicy.RUNTIME)
@Target(value = { ElementType.TYPE })
static public @interface Syntax {
String cmd();
String desc() default "";
String onlineHelp() default "";
String syntax() default "";
}
private String cmdLineSyntax;
private String cmdName;
private String desc;
private String onlineHelp;
protected Map<String, Option> optMap = new HashMap<String, Option>();
@Opt(opt = "h", longOpt = "help", hasArg = false, description = "Print this help message")
private boolean printHelp = false;
protected String remainingArgs[];
protected String orginalArgs[];
public BaseCmd() {
}
public BaseCmd(String cmdLineSyntax, String header) {
super();
int i = cmdLineSyntax.indexOf(' ');
if (i > 0) {
this.cmdName = cmdLineSyntax.substring(0, i);
this.cmdLineSyntax = cmdLineSyntax.substring(i + 1);
}
this.desc = header;
}
public BaseCmd(String cmdName, String cmdSyntax, String header) {
super();
this.cmdName = cmdName;
this.cmdLineSyntax = cmdSyntax;
this.desc = header;
}
private Set<Option> collectRequriedOptions(Map<String, Option> optMap) {
Set<Option> options = new HashSet<Option>();
for (Map.Entry<String, Option> e : optMap.entrySet()) {
Option option = e.getValue();
if (option.required) {
options.add(option);
}
}
return options;
}
@SuppressWarnings({ "rawtypes", "unchecked" })
protected Object convert(String value, Class type) {
if (type.equals(String.class)) {
return value;
}
if (type.equals(int.class) || type.equals(Integer.class)) {
return Integer.parseInt(value);
}
if (type.equals(long.class) || type.equals(Long.class)) {
return Long.parseLong(value);
}
if (type.equals(float.class) || type.equals(Float.class)) {
return Float.parseFloat(value);
}
if (type.equals(double.class) || type.equals(Double.class)) {
return Double.parseDouble(value);
}
if (type.equals(boolean.class) || type.equals(Boolean.class)) {
return Boolean.parseBoolean(value);
}
if (type.equals(File.class)) {
return new File(value);
}
if (type.equals(Path.class)) {
return new File(value).toPath();
}
try {
type.asSubclass(Enum.class);
return Enum.valueOf(type, value);
} catch (Exception e) {
}
throw new RuntimeException("can't convert [" + value + "] to type " + type);
}
;
protected abstract void doCommandLine() throws Exception;
public void doMain(String... args) {
try {
initOptions();
parseSetArgs(args);
doCommandLine();
} catch (HelpException e) {
String msg = e.getMessage();
if (msg != null && msg.length() > 0) {
System.err.println("ERROR: " + msg);
}
usage();
} catch (Exception e) {
e.printStackTrace(System.err);
}
}
protected String getVersionString() {
return getClass().getPackage().getImplementationVersion();
}
protected void initOptionFromClass(Class<?> clz) {
if (clz == null) {
return;
} else {
initOptionFromClass(clz.getSuperclass());
}
Syntax syntax = clz.getAnnotation(Syntax.class);
if (syntax != null) {
this.cmdLineSyntax = syntax.syntax();
this.cmdName = syntax.cmd();
this.desc = syntax.desc();
this.onlineHelp = syntax.onlineHelp();
}
Field[] fs = clz.getDeclaredFields();
for (Field f : fs) {
Opt opt = f.getAnnotation(Opt.class);
if (opt != null) {
f.setAccessible(true);
if (!opt.hasArg()) {
Class<?> type = f.getType();
if (!type.equals(boolean.class)) {
throw new RuntimeException("the type of " + f
+ " must be boolean, as it is declared as no args");
}
boolean b;
try {
b = (Boolean) f.get(this);
} catch (Exception e) {
throw new RuntimeException(e);
}
if (b) {
throw new RuntimeException("the value of " + f + " must be false, as it is declared as no args");
}
}
Option option = new Option();
option.field = f;
option.description = opt.description();
option.hasArg = opt.hasArg();
option.required = opt.required();
boolean haveLongOpt = false;
if (!"".equals(opt.longOpt())) {
option.longOpt = opt.longOpt();
checkConflict(option, "--" + option.longOpt);
haveLongOpt = true;
}
if (!"".equals(opt.argName())) {
option.argName = opt.argName();
}
if (!"".equals(opt.opt())) {
option.opt = opt.opt();
checkConflict(option, "-" + option.opt);
} else {
if (!haveLongOpt) {
throw new RuntimeException("opt or longOpt is not set in @Opt(...) " + f);
}
}
}
}
}
private void checkConflict(Option option, String key) {
if (optMap.containsKey(key)) {
Option preOption = optMap.get(key);
throw new RuntimeException(String.format("[@Opt(...) %s] conflict with [@Opt(...) %s]",
preOption.field.toString(), option.field
));
}
optMap.put(key, option);
}
protected void initOptions() {
initOptionFromClass(this.getClass());
}
public static void main(String... args) throws ClassNotFoundException, IllegalAccessException,
InstantiationException {
if (args.length < 1) {
System.err.println("d2j-run <class> [args]");
return;
}
Class<?> clz = Class.forName(args[0]);
BaseCmd baseCmd = (BaseCmd) clz.newInstance();
String newArgs[] = new String[args.length - 1];
System.arraycopy(args, 1, newArgs, 0, newArgs.length);
baseCmd.doMain(newArgs);
}
protected void parseSetArgs(String... args) throws IllegalArgumentException, IllegalAccessException {
this.orginalArgs = args;
List<String> remainsOptions = new ArrayList<String>();
Set<Option> requiredOpts = collectRequriedOptions(optMap);
Option needArgOpt = null;
for (String s : args) {
if (needArgOpt != null) {
needArgOpt.field.set(this, convert(s, needArgOpt.field.getType()));
needArgOpt = null;
} else if (s.startsWith("-")) {// its a short or long option
Option opt = optMap.get(s);
requiredOpts.remove(opt);
if (opt == null) {
System.err.println("ERROR: Unrecognized option: " + s);
throw new HelpException();
} else {
if (opt.hasArg) {
needArgOpt = opt;
} else {
opt.field.set(this, true);
}
}
} else {
remainsOptions.add(s);
}
}
if (needArgOpt != null) {
System.err.println("ERROR: Option " + needArgOpt.getOptAndLongOpt() + " need an argument value");
throw new HelpException();
}
this.remainingArgs = remainsOptions.toArray(new String[remainsOptions.size()]);
if (this.printHelp) {
throw new HelpException();
}
if (!requiredOpts.isEmpty()) {
StringBuilder sb = new StringBuilder();
sb.append("ERROR: Options: ");
boolean first = true;
for (Option option : requiredOpts) {
if (first) {
first = false;
} else {
sb.append(" and ");
}
sb.append(option.getOptAndLongOpt());
}
sb.append(" is required");
System.err.println(sb.toString());
throw new HelpException();
}
}
protected void usage() {
PrintWriter out = new PrintWriter(new OutputStreamWriter(System.err, StandardCharsets.UTF_8), true);
final int maxLength = 80;
final int maxPaLength = 40;
out.println(this.cmdName + " -- " + desc);
out.println("usage: " + this.cmdName + " " + cmdLineSyntax);
if (this.optMap.size() > 0) {
out.println("options:");
}
// [PART.A.........][Part.B
// .-a,--aa.<arg>...desc1
// .................desc2
// .-b,--bb
TreeSet<Option> options = new TreeSet<Option>(this.optMap.values());
int palength = -1;
for (Option option : options) {
int pa = 4 + option.getOptAndLongOpt().length();
if (option.hasArg) {
pa += 3 + option.argName.length();
}
if (pa < maxPaLength) {
if (pa > palength) {
palength = pa;
}
}
}
int pblength = maxLength - palength;
StringBuilder sb = new StringBuilder();
for (Option option : options) {
sb.setLength(0);
sb.append(" ").append(option.getOptAndLongOpt());
if (option.hasArg) {
sb.append(" <").append(option.argName).append(">");
}
String desc = option.description;
if (desc == null || desc.length() == 0) {// no description
out.println(sb);
} else {
for (int i = palength - sb.length(); i > 0; i--) {
sb.append(' ');
}
if (sb.length() > maxPaLength) {// to huge part A
out.println(sb);
sb.setLength(0);
for (int i = 0; i < palength; i++) {
sb.append(' ');
}
}
int nextStart = 0;
while (nextStart < desc.length()) {
if (desc.length() - nextStart < pblength) {// can put in one line
sb.append(desc.substring(nextStart));
out.println(sb);
nextStart = desc.length();
sb.setLength(0);
} else {
sb.append(desc.substring(nextStart, nextStart + pblength));
out.println(sb);
nextStart += pblength;
sb.setLength(0);
if (nextStart < desc.length()) {
for (int i = 0; i < palength; i++) {
sb.append(' ');
}
}
}
}
if (sb.length() > 0) {
out.println(sb);
sb.setLength(0);
}
}
}
String ver = getVersionString();
if (ver != null && !"".equals(ver)) {
out.println("version: " + ver);
}
if (onlineHelp != null && !"".equals(onlineHelp)) {
if (onlineHelp.length() + "online help: ".length() > maxLength) {
out.println("online help: ");
out.println(onlineHelp);
} else {
out.println("online help: " + onlineHelp);
}
}
out.flush();
}
}