/*
* Copyright (C) 2011-2012, IBM Corporation and others.
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.eclipse.jgit.pgm;
import java.io.ByteArrayOutputStream;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.pgm.internal.CLIText;
import org.eclipse.jgit.pgm.opt.CmdLineParser;
import org.eclipse.jgit.pgm.opt.SubcommandHandler;
import org.eclipse.jgit.util.IO;
import org.kohsuke.args4j.Argument;
public class CLIGitCommand {
@Argument(index = 0, metaVar = "metaVar_command", required = true, handler = SubcommandHandler.class)
private TextBuiltin subcommand;
@Argument(index = 1, metaVar = "metaVar_arg")
private List<String> arguments = new ArrayList<String>();
public TextBuiltin getSubcommand() {
return subcommand;
}
public List<String> getArguments() {
return arguments;
}
public static List<String> execute(String str, Repository db)
throws Exception {
try {
return IO.readLines(new String(rawExecute(str, db)));
} catch (Die e) {
return IO.readLines(MessageFormat.format(CLIText.get().fatalError,
e.getMessage()));
}
}
public static byte[] rawExecute(String str, Repository db)
throws Exception {
String[] args = split(str);
if (!args[0].equalsIgnoreCase("git") || args.length < 2)
throw new IllegalArgumentException(
"Expected 'git <command> [<args>]', was:" + str);
String[] argv = new String[args.length - 1];
System.arraycopy(args, 1, argv, 0, args.length - 1);
CLIGitCommand bean = new CLIGitCommand();
final CmdLineParser clp = new CmdLineParser(bean);
clp.parseArgument(argv);
final TextBuiltin cmd = bean.getSubcommand();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
cmd.outs = baos;
if (cmd.requiresRepository())
cmd.init(db, null);
else
cmd.init(null, null);
try {
cmd.execute(bean.getArguments().toArray(
new String[bean.getArguments().size()]));
} finally {
if (cmd.outw != null)
cmd.outw.flush();
}
return baos.toByteArray();
}
/**
* Split a command line into a string array.
*
* A copy of Gerrit's
* com.google.gerrit.sshd.CommandFactoryProvider#split(String)
*
* @param commandLine
* a command line
* @return the array
*/
static String[] split(String commandLine) {
final List<String> list = new ArrayList<String>();
boolean inquote = false;
boolean inDblQuote = false;
StringBuilder r = new StringBuilder();
for (int ip = 0; ip < commandLine.length();) {
final char b = commandLine.charAt(ip++);
switch (b) {
case '\t':
case ' ':
if (inquote || inDblQuote)
r.append(b);
else if (r.length() > 0) {
list.add(r.toString());
r = new StringBuilder();
}
continue;
case '\"':
if (inquote)
r.append(b);
else
inDblQuote = !inDblQuote;
continue;
case '\'':
if (inDblQuote)
r.append(b);
else
inquote = !inquote;
continue;
case '\\':
if (inquote || ip == commandLine.length())
r.append(b); // literal within a quote
else
r.append(commandLine.charAt(ip++));
continue;
default:
r.append(b);
continue;
}
}
if (r.length() > 0)
list.add(r.toString());
return list.toArray(new String[list.size()]);
}
}