debian/postinst

   1 #!/bin/sh
   2
   3 # Abort if any command returns an error value
   4 set -e
   5
   6 case "$1" in
   7   configure)
   8     # Configure this package.  If the package must prompt the user for
   9     # information, do it here.
  10
  11     # There are three sub-cases:
  12     if test "${2+set}" != set; then
  13       # We're being installed by an ancient dpkg which doesn't remember
  14       # which version was most recently configured, or even whether
  15       # there is a most recently configured version.
  16       :
  17
  18     elif test -z "$2" -o "$2" = "<unknown>"; then
  19       # The package has not ever been configured on this system, or was
  20       # purged since it was last configured.
  21       :
  22
  23     else
  24       # Version $2 is the most recently configured version of this
  25       # package.
  26       :
  27
  28     fi ;;
  29   abort-upgrade)
  30     # Back out of an attempt to upgrade this package FROM THIS VERSION
  31     # to version $2.  Undo the effects of "prerm upgrade $2".
  32     :
  33
  34     ;;
  35   abort-remove)
  36     if test "$2" != in-favour; then
  37       echo "$0: undocumented call to \`postinst $*'" 1>&2
  38       exit 0
  39     fi
  40     # Back out of an attempt to remove this package, which was due to
  41     # a conflict with package $3 (version $4).  Undo the effects of
  42     # "prerm remove in-favour $3 $4".
  43     :
  44
  45     ;;
  46   abort-deconfigure)
  47     if test "$2" != in-favour -o "$5" != removing; then
  48       echo "$0: undocumented call to \`postinst $*'" 1>&2
  49       exit 0
  50     fi
  51     # Back out of an attempt to deconfigure this package, which was
  52     # due to package $6 (version $7) which we depend on being removed
  53     # to make way for package $3 (version $4).  Undo the effects of
  54     # "prerm deconfigure in-favour $3 $4 removing $6 $7".
  55     :
  56
  57     ;;
  58   *) echo "$0: didn't understand being called with \`$1'" 1>&2
  59      exit 0;;
  60 esac
  61
  62 exit 0