// ListNewer.java
//
// You may use and distribute this example. This program is 
// provided WITHOUT WARRANTY either expressed or implied.
//
// Copyright Henrik Björkman 1998
//
// Description: See usage below.
//
// History:
// 0.0 Created by Henrik Björkman 1998-06-09
//


import java.io.*;



public class ListNewer
{

  static void error(String str)
  {
    System.err.println("ListNewer: " + str);
  }

  static void debug(String str)
  {
    //error(str);
  }

  static void print(String str)
  {
    System.out.println(str);
  }

  static void show_file(String root1, String root2, String name, int depth)
  {
    File f1,f2;
    //try 
    {
      f1=new File(root1+name);
      if (f1.isDirectory())
      { 
        int i;
        String[] n;
        //print(name+'/');
        n=f1.list();
        for (i=0;i<n.length;i++)
        {
          show_file(root1,root2,name+"/"+n[i],depth+1);
        }
      }
      else if (f1.isFile())
      {
        f2=new File(root2+name);        
        /* kolla om f2 inte finns eller är äldre */
        if ((!f2.exists()) || (!f2.isFile()) || (f2.lastModified()<f1.lastModified()))
        {
          print(name);
        }
      }
      else
      {
        print(name+" ?");
      }
    }
    //catch (IOException e) {error(""+e);}
  }

  public static void main(String args[]) 
  {
    debug("begin");

    if (args.length < 2 )
    {
      print("");
      print("Usage: java ListNewer <dir1> <dir2>");
      print("");
      print("List files in <dir1> that don't exist or are older in <dir2>");
      print("");
      System.exit(0);
    }

    show_file(args[0],args[1],"",0);

    debug("end");
  }
}