MclUpdater.cs :  » Game » DotNETris » KP.Tetris » Mce.CustomAction » C# / CSharp Open Source

// (c) 2005 kp@kp73.com

using System;
using System.Configuration.Install;
using System.IO;
using System.Collections;
using System.Diagnostics;

namespace KP.Tetris.Mce.CustomAction{
  [System.ComponentModel.RunInstallerAttribute(true)]
  public class MclUpdater : Installer  
  {
    public override void Install(IDictionary savedState)
    {
      base.Install(savedState);
      try
      {
        Debug.WriteLine("Install custom action " + this.ToString());
        string applicationFolder = Path.GetDirectoryName(Context.Parameters["assemblypath"]);
        Debug.WriteLine("Install application folder: " +  applicationFolder);
        Update(applicationFolder);
      }
      catch (Exception e)
      {
        Debug.WriteLine("Install error: " + e.Message);
        throw;
      }
    }

    public override void Uninstall(IDictionary savedState)
    {
      base.Uninstall (savedState);
      try
      {
        string mcePrograms = 
          Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.StartMenu),
          @"Programs\Accessories\Media Center\Media Center Programs\DotNETris.mcl");
        File.Delete(mcePrograms);
      }
      catch (Exception)
      {
        // don't stop uninstallation just 'cos we can't remove this file 
        // might end up with uninstall rolling back every time
      }
    }


    public static void Update(string applicationFolder)
    {
      string mcl = null;
      string mclFilePath = Path.Combine(applicationFolder, @"DotNETris.mcl");

      Debug.WriteLine("Install reading file: " +  mclFilePath);
      using (FileStream s = File.OpenRead(mclFilePath))
      {
        StreamReader r = new StreamReader(s);
        mcl = r.ReadToEnd();
      }

      mcl = mcl.Replace(@"{APPLICATIONFOLDER}", applicationFolder);
      applicationFolder = applicationFolder.Replace(@"\", @"/");
      mcl = mcl.Replace(@"{APPLICATIONFOLDER_URL}", applicationFolder);

      Debug.WriteLine("Install updating file: " +  mclFilePath);
      FileStream outputStream = File.Create(mclFilePath);
      StreamWriter outputWriter = new StreamWriter(outputStream);
      outputWriter.Write(mcl);
      outputWriter.Flush();
      outputWriter.Close();

      Debug.WriteLine("Install update complete file: " +  mclFilePath);

      try
      {
        string mcePath = 
          Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.StartMenu),
          @"Programs\Accessories\Media Center\Media Center Programs");
        string mceProgram = Path.Combine(mcePath, @"DotNETris.mcl");
        if (!Directory.Exists(mcePath))
          Directory.CreateDirectory(mcePath);
        File.Copy(mclFilePath, mceProgram);
      }
      catch (Exception exp)
      {
        // don't stop installation just 'cos we can't copy this file (non MCE machine?)
        Debug.WriteLine(exp.Message);
      }
    }
  }
}