source/steps/ConfirmInstallWithUser.py

   1 #!/usr/bin/python
   2 #
   3 # $Id$
   4 # $URL$
   5 #
   6 # Copyright (c) 2003 Intel Corporation
   7 # All rights reserved.
   8 #
   9 # Copyright (c) 2004-2006 The Trustees of Princeton University
  10 # All rights reserved.
  11
  12 from Exceptions import *
  13
  14 welcome_message= \
  15 """
  16 ********************************************************************************
  17 *                                                                              *
  18 *                             Welcome to PlanetLab                             *
  19 *                             ~~~~~~~~~~~~~~~~~~~~                             *
  20 *                                                                              *
  21 * The PlanetLab boot CD allows you to automatically install this machine as a  *
  22 * node within the PlanetLab overlay network.                                   *
  23 *                                                                              *
  24 * PlanetLab is a global overlay network for developing and accessing new       *
  25 * network services. Our goal is to grow to 1000 geographically distributed     *
  26 * nodes, connected by a diverse collection of links. Toward this end, we are   *
  27 * putting PlanetLab nodes into edge sites, co-location and routing centers,    *
  28 * and homes (i.e., at the end of DSL lines and cable modems). PlanetLab is     *
  29 * designed to support both short-term experiments and long-running services.   *
  30 * Currently running services include network weather maps, network-embedded    *
  31 * storage, peer-to-peer networks, and content distribution networks.           *
  32 *                                                                              *
  33 * Information on joining PlanetLab available at planet-lab.org/consortium/     *
  34 *                                                                              *
  35 ********************************************************************************
  36
  37 WARNING : Installing PlanetLab will remove any existing operating system and
  38           data from this computer.
  39 """
  40
  41
  42 def Run( vars, log ):
  43     """
  44     Ask the user if we really want to wipe this machine.
  45
  46     Return 1 if the user accept, 0 if the user denied, and
  47     a BootManagerException if anything unexpected occurred.
  48     """
  49
  50     log.write( "\n\nStep: Confirming install with user.\n" )
  51
  52     try:
  53         confirmation= ""
  54         install= 0
  55         print welcome_message
  56
  57         while confirmation not in ("yes","no"):
  58             confirmation= \
  59                 raw_input("Are you sure you wish to continue (yes/no):")
  60         install= confirmation=="yes"
  61     except EOFError, e:
  62         pass
  63     except KeyboardInterrupt, e:
  64         pass
  65
  66     if install:
  67         log.write( "\nUser accepted install.\n" )
  68     else:
  69         log.write( "\nUser canceled install.\n" )
  70
  71     return install