/src/main/java/jenkins/plugins/shiningpanda/utils/LauncherUtil.java

/*
 * ShiningPanda plug-in for Jenkins
 * Copyright (C) 2011-2015 ShiningPanda S.A.S.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of its license which incorporates the terms and 
 * conditions of version 3 of the GNU Affero General Public License, 
 * supplemented by the additional permissions under the GNU Affero GPL
 * version 3 section 7: if you modify this program, or any covered work, 
 * by linking or combining it with other code, such other code is not 
 * for that reason alone subject to any of the requirements of the GNU
 * Affero GPL version 3.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * license for more details.
 *
 * You should have received a copy of the license along with this program.
 * If not, see <https://raw.github.com/jenkinsci/shiningpanda-plugin/master/LICENSE.txt>.
 */
package jenkins.plugins.shiningpanda.utils;

import java.io.IOException;

import hudson.EnvVars;
import hudson.FilePath;
import hudson.Launcher;
import hudson.Util;
import hudson.model.TaskListener;
import hudson.tasks.Messages;
import hudson.util.ArgumentListBuilder;

public class LauncherUtil {

    /**
     * Launch a process.
     * 
     * @param launcher
     *            The launcher
     * @param listener
     *            The build listener
     * @param pwd
     *            The working directory
     * @param environment
     *            The environment
     * @param args
     *            The arguments
     * @return true if was successful, else false
     * @throws InterruptedException
     */
    public static boolean launch(Launcher launcher, TaskListener listener, FilePath pwd, EnvVars environment,
	    ArgumentListBuilder args) throws InterruptedException {
	// Be able to display error
	try {
	    // Launch the process
	    return 0 == launcher.launch().cmds(FilePathUtil.isUnix(pwd) ? args : args.toWindowsCommand())
		    .envs(environment).stdout(listener).pwd(pwd).join();
	} catch (IOException e) {
	    // Something went wrong, display error
	    Util.displayIOException(e, listener);
	    // Log error message
	    e.printStackTrace(listener.fatalError(Messages.CommandInterpreter_CommandFailed()));
	    // Return an error
	    return false;
	}
    }

    /**
     * Create a symbolic link.
     * 
     * @param launcher
     *            The launcher
     * @param listener
     *            The listener
     * @param target
     *            The target file
     * @param link
     *            The link file
     * @return true if successful, else false
     * @throws InterruptedException
     * @throws IOException
     */
    public static boolean createSymlink(Launcher launcher, TaskListener listener, FilePath target, FilePath link)
	    throws InterruptedException, IOException {
	// Get the arguments
	ArgumentListBuilder args = new ArgumentListBuilder("ln", "-s", target.getRemote(), link.getRemote());
	// Be able to display error
	try {
	    // Launch the process
	    return 0 == launcher.launch().cmds(args).stdout(listener).join();
	} catch (IOException e) {
	    // Something went wrong, display error
	    Util.displayIOException(e, listener);
	    // Log error message
	    e.printStackTrace(listener.fatalError(Messages.CommandInterpreter_CommandFailed()));
	    // Return an error
	    return false;
	}
    }
}