VagrantLauncher.java

import java.util.*;
import java.io.*;
class StreamGobbler extends Thread
{
    InputStream is;
    String type;

    StreamGobbler(InputStream is, String type)
    {
        this.is = is;
        this.type = type;
    }

    public void run()
    {
        try
        {
            InputStreamReader isr = new InputStreamReader(is);
            BufferedReader br = new BufferedReader(isr);
            String line=null;
            while ( (line = br.readLine()) != null)
                System.out.println(type + ">" + line);
            } catch (IOException ioe)
              {
                ioe.printStackTrace();
              }
    }
}
public class VagrantLauncher
{
    public static void main(String args[])
    {
        try
        {
            String[] cmd = new String[3];
            cmd[0] = args[0];
            cmd[1] = "up";
            cmd[2] = "--no-color";
//           cmd[3] = "--debug";
            Runtime rt = Runtime.getRuntime();
            List<String> envp = new ArrayList<>();
            for(Map.Entry<String, String> entry : System.getenv().entrySet()) {
                envp.add(entry.getKey() + "=" + entry.getValue());
            }
            System.out.println("Execing " + cmd[0] + " " + cmd[1]
                               + " " + cmd[2]);
            envp.add("SUB_USERNAME=" + args[2]);
            envp.add("SUB_PASSWORD=" + args[3]);
            Process proc = rt.exec(cmd, envp.toArray(new String[0]), new File(args[1]));
            // any error message?
            StreamGobbler errorGobbler = new
                StreamGobbler(proc.getErrorStream(), "ERROR");

            // any output?
            StreamGobbler outputGobbler = new
                StreamGobbler(proc.getInputStream(), "OUTPUT");

            // kick them off
            errorGobbler.start();
            outputGobbler.start();

            // any error???
            int exitVal = proc.waitFor();
            System.out.println("waitFor returned:" + exitVal);
            System.exit(exitVal);
        //  outputGobbler.join();
        //  System.out.println("output thread died");
        //  errorGobbler.join();
        //  System.out.println("error thread died");
        } catch (Throwable t)
          {
            t.printStackTrace();
          }
    }
}