source/steps/ConfirmInstallWithUser.py

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