View difference between Paste ID: 6gRGX2z6 and QsNh3x2S

 local installed = fs.exists( "extensions" )
 if installed then
   print "Extensions already downloaded, reinstall? (y/n)"
   while true do
     local _, key = os.pullEvent( "key" )
     -- remove any stray character events
     os.startTimer(0.1)
     os.pullEvent()
     if key == keys.y then
       shell.run( "delete extensions", "w" )
       if fs.exists( "extensions.cfg" ) then
         local file = fs.open( "extensions.cfg", "r" )
         local text = file.readAll()
         file.close()
         if text:find( "^return " ) then
           print "Fixing old configuration file"
           file = fs.open( "extensions.cfg", "w" )
           text = text:gsub( "^return ", "" )
           file.write( text )
           file.close()
         end
       end
       break
     elseif key == keys.n then
       print "Canceling installation"
       return
     end
   end
 end
 
 print "Installing extensions"
 shell.run( "pastebin get 7Nq6R70n extensions" )
 
 if installed then
   shell.run( "extensions reload" )
 else
   shell.run( "extensions" )
   print "Adding extensions to startup"
   local file = fs.open("startup", fs.exists("startup") and "a" or "w")
   file.writeLine( 'shell.run( "extensions" )' )
   file.close()
 end