debian/postinst

   1 #! /bin/sh
   2
   3 # Abort if any command returns an error value
   4 set -e
   5
   6 # This script is called as the last step of the installation of the
   7 # package.  All the package's files are in place, dpkg has already
   8 # done its automatic conffile handling, and all the packages we depend
   9 # of are already fully installed and configured.
  10
  11 # The following idempotent stuff doesn't generally need protecting
  12 # against being run in the abort-* cases.
  13
  14
  15 case "$1" in
  16   configure)
  17     # Configure this package.  If the package must prompt the user for
  18     # information, do it here.
  19
  20     # There are three sub-cases:
  21     if test "${2+set}" != set; then
  22       # We're being installed by an ancient dpkg which doesn't remember
  23       # which version was most recently configured, or even whether
  24       # there is a most recently configured version.
  25       :
  26
  27     elif test -z "$2" -o "$2" = "<unknown>"; then
  28       # The package has not ever been configured on this system, or was
  29       # purged since it was last configured.
  30       :
  31
  32     else
  33       # Version $2 is the most recently configured version of this
  34       # package.
  35       :
  36
  37     fi ;;
  38   abort-upgrade)
  39     # Back out of an attempt to upgrade this package FROM THIS VERSION
  40     # to version $2.  Undo the effects of "prerm upgrade $2".
  41     :
  42
  43     ;;
  44   abort-remove)
  45     if test "$2" != in-favour; then
  46       echo "$0: undocumented call to \`postinst $*'" 1>&2
  47       exit 0
  48     fi
  49     # Back out of an attempt to remove this package, which was due to
  50     # a conflict with package $3 (version $4).  Undo the effects of
  51     # "prerm remove in-favour $3 $4".
  52     :
  53
  54     ;;
  55   abort-deconfigure)
  56     if test "$2" != in-favour -o "$5" != removing; then
  57       echo "$0: undocumented call to \`postinst $*'" 1>&2
  58       exit 0
  59     fi
  60     # Back out of an attempt to deconfigure this package, which was
  61     # due to package $6 (version $7) which we depend on being removed
  62     # to make way for package $3 (version $4).  Undo the effects of
  63     # "prerm deconfigure in-favour $3 $4 removing $6 $7".
  64     :
  65
  66     ;;
  67   *) echo "$0: didn't understand being called with \`$1'" 1>&2
  68      exit 0;;
  69 esac
  70
  71 if [ -x "/etc/init.d/ksmtuned" ]; then
  72     update-rc.d ksmtuned defaults 21 >/dev/null 2>&1
  73     if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
  74         invoke-rc.d ksmtuned start || exit $?
  75     else
  76         /etc/init.d/ksmtuned start || exit $?
  77     fi
  78 fi
  79
  80 exit 0