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org.dojotoolkit.shrinksafe.Main Maven / Gradle / Ivy
/*
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Rhino code, released
* May 6, 1999.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1997-1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Alex Russell
* Richard Backhouse
*/
package org.dojotoolkit.shrinksafe;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.ResourceBundle;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.ContextAction;
import org.mozilla.javascript.Kit;
import org.mozilla.javascript.tools.ToolErrorReporter;
import org.mozilla.javascript.tools.shell.Global;
import org.mozilla.javascript.tools.shell.QuitAction;
import org.mozilla.javascript.tools.shell.ShellContextFactory;
public class Main {
protected static final Global global = new Global();
protected static final ShellContextFactory shellContextFactory = new ShellContextFactory();
protected static ToolErrorReporter errorReporter;
protected static int exitCode = 0;
protected static boolean escapeUnicode = false;
protected static String stripConsole = null;
static {
global.initQuitAction(new IProxy(IProxy.SYSTEM_EXIT, null));
}
/**
* Proxy class to avoid proliferation of anonymous classes.
*/
private static class IProxy implements ContextAction, QuitAction
{
private static final int PROCESS_FILES = 1;
private static final int SYSTEM_EXIT = 3;
private int type;
private String[] args;
IProxy(int type, String[] args) {
this.type = type;
this.args = args;
}
public Object run(Context cx) {
if (type == PROCESS_FILES) {
try {
processFiles(cx, args);
} catch (IOException ioe) {
Context.reportError(ioe.toString());
}
} else {
throw Kit.codeBug();
}
return null;
}
public void quit(Context cx, int exitCode) {
if (type == SYSTEM_EXIT) {
System.exit(exitCode);
return;
}
throw Kit.codeBug();
}
}
public static void main(String[] args) {
errorReporter = new ToolErrorReporter(false, global.getErr());
shellContextFactory.setErrorReporter(errorReporter);
IProxy iproxy = new IProxy(IProxy.PROCESS_FILES, processOptions(args));
global.init(shellContextFactory);
shellContextFactory.call(iproxy);
}
public static String[] processOptions(String args[]) {
List fileList = new ArrayList();
String usageError = null;
boolean showUsage = false;
for (int i = 0; i < args.length; i++) {
String arg = args[i];
if (!arg.startsWith("-")) {
fileList.add(arg);
}
else if (arg.equals("-js-version")) {
if (++i == args.length) {
usageError = arg;
}
int version = 0;
try {
version = Integer.parseInt(args[i]);
} catch (NumberFormatException ex) {
usageError = args[i];
}
if (!Context.isValidLanguageVersion(version)) {
usageError = args[i];
}
if (usageError != null)
shellContextFactory.setLanguageVersion(version);
}
/*
else if (arg.equals("-opt") || arg.equals("-O")) {
if (++i == args.length) {
usageError = arg;
}
int opt = 0;
try {
opt = Integer.parseInt(args[i]);
} catch (NumberFormatException ex) {
usageError = args[i];
}
if (opt == -2) {
// Compatibility with Cocoon Rhino fork
opt = -1;
} else if (!Context.isValidOptimizationLevel(opt)) {
usageError = args[i];
}
if (usageError != null) {
shellContextFactory.setOptimizationLevel(opt);
}
}
else if (arg.equals("-debug")) {
shellContextFactory.setGeneratingDebug(true);
}
*/
else if (arg.equals("-?") || arg.equals("-help")) {
showUsage = true;
}
else if (arg.equals("-escape-unicode")) {
escapeUnicode = true;
}
else if (arg.equals("-stripConsole")) {
if (i >= (args.length-1)) {
usageError = getMessage("msg.shell.stripConsoleMissingArg");
} else {
stripConsole = args[++i];
if (!stripConsole.equals("normal") &&
!stripConsole.equals("warn") &&
!stripConsole.equals("all")) {
usageError = getMessage("msg.shell.stripConsoleInvalid");
}
}
}
}
// print error and usage message
if (usageError != null) {
global.getOut().println(getMessage("msg.shell.invalid", usageError));
}
if (usageError != null || showUsage) {
global.getOut().println(getMessage("msg.shell.usage"));
System.exit(1);
}
String[] files = new String[fileList.size()];
files = (String[])fileList.toArray(files);
return files;
}
static void processFiles(Context cx, String[] files) throws IOException {
StringBuffer cout = new StringBuffer();
if (files.length > 0) {
for (int i=0; i < files.length; i++) {
try {
String source = (String)readFileOrUrl(files[i], true);
cout.append(Compressor.compressScript(source, 0, 1, escapeUnicode, stripConsole));
} catch(IOException ex) {
// continue processing files
}
}
} else {
byte[] data = Kit.readStream(global.getIn(), 4096);
// Convert to String using the default encoding
String source = new String(data);
if (source != null) {
cout.append(Compressor.compressScript(source, 0, 1, escapeUnicode, stripConsole));
}
}
global.getOut().println(cout);
}
private static Object readFileOrUrl(String path, boolean convertToString) throws IOException {
URL url = null;
// Assume path is URL if it contains a colon and there are at least
// 2 characters in the protocol part. The later allows under Windows
// to interpret paths with driver letter as file, not URL.
if (path.indexOf(':') >= 2) {
try {
url = new URL(path);
} catch (MalformedURLException ex) {
}
}
InputStream is = null;
int capacityHint = 0;
if (url == null) {
File file = new File(path);
capacityHint = (int)file.length();
try {
is = new FileInputStream(file);
} catch (IOException ex) {
Context.reportError(getMessage("msg.couldnt.open", path));
throw ex;
}
} else {
try {
URLConnection uc = url.openConnection();
is = uc.getInputStream();
capacityHint = uc.getContentLength();
// Ignore insane values for Content-Length
if (capacityHint > (1 << 20)) {
capacityHint = -1;
}
} catch (IOException ex) {
Context.reportError(getMessage("msg.couldnt.open.url", url.toString(), ex.toString()));
throw ex;
}
}
if (capacityHint <= 0) {
capacityHint = 4096;
}
byte[] data;
try {
try {
is = new BufferedInputStream(is);
data = Kit.readStream(is, capacityHint);
} finally {
is.close();
}
} catch (IOException ex) {
Context.reportError(ex.toString());
throw ex;
}
Object result;
if (convertToString) {
// Convert to String using the default encoding
// TODO: Use 'charset=' argument of Content-Type if URL?
result = new String(data);
} else {
result = data;
}
return result;
}
private static String getMessage(String messageId) {
return getMessage(messageId, (Object []) null);
}
private static String getMessage(String messageId, String argument) {
return getMessage(messageId, new Object[]{argument});
}
private static String getMessage(String messageId, Object arg1, Object arg2) {
return getMessage(messageId, new Object[]{arg1, arg2});
}
private static String getMessage(String messageId, Object[] args) {
Context cx = Context.getCurrentContext();
Locale locale = cx == null ? Locale.getDefault() : cx.getLocale();
ResourceBundle rb = ResourceBundle.getBundle("org.dojotoolkit.shrinksafe.resources.Messages", locale);
String formatString = null;
try {
formatString = rb.getString(messageId);
} catch (java.util.MissingResourceException mre) {
throw new RuntimeException("no message resource found for message property " + messageId);
}
if (args == null) {
return formatString;
} else {
MessageFormat formatter = new MessageFormat(formatString);
return formatter.format(args);
}
}
}
