contrib/bsdinstaller-1.1.6/src/backend/lua/upgrade/500_perform_upgrade.lua

   1 -- $Id: 500_perform_upgrade.lua,v 1.1 2005/03/27 23:19:29 cpressey Exp $
   2
   3 --
   4 -- Perform an upgrade by copying files from the root of the installation
   5 -- medium to the target system.
   6 --
   7 return {
   8     name = "perform_upgrade",
   9     title = "Perform Upgrade",
  10     action = function(fsm)
  11         local cmds
  12
  13         assert(App.state.target)
  14         cmds = CmdChain.new()
  15         cmds:set_replacements{
  16             base = App.state.target:get_base()
  17         }
  18
  19         --
  20         -- First, we must record which files on the installed system have
  21         -- the 'noschg' flag set.
  22         --
  23         App.register_tmpfile("schg.txt")
  24         cmds:add("${root}${FIND} ${root}${base} -flags -schg, >${tmp}schg.txt")
  25
  26         --
  27         -- Next, we take away the schg flag from these files, so that we
  28         -- can overwrite them.
  29         --
  30         cmds:add("${root}${XARGS} -t ${root}${CHFLAGS} noschg <${tmp}schg.txt")
  31
  32         --
  33         -- Add commands to copy sources (files and directories) now.
  34         --
  35         App.state.target:cmds_install_srcs(cmds, App.load_conf("sources"))
  36
  37         --
  38         -- Before we are done, we must use chflags to restore the flags
  39         -- of files which we 'noschg'ed so that we could upgrade them.
  40         --
  41         cmds:add("${root}${XARGS} -t ${root}${CHFLAGS} schg <${tmp}schg.txt")
  42
  43         --
  44         -- Finally: do it.
  45         --
  46         if cmds:execute() then
  47                 App.ui:inform(
  48                     _("Target system was successfully upgraded!")
  49                 )
  50         else
  51                 App.ui:inform(
  52                     _("Target system was not successfully upgraded.")
  53                 )
  54         end
  55
  56         return fsm:next()
  57     end
  58 }