poldek-config.sh

   1 #!/bin/sh
   2 #
   3 # poldek-config - poldek(1) configuration program
   4 #
   5 # poldek-config is an program to provide consistent configurability.
   6 # It accesses the main configuration file /etc/poldek/poldek.conf(5)
   7 # in a manner that is easy to use by scripted applications.
   8 #
   9 # Author: Elan Ruusamäe <glen@pld-linux.org>
  10 # Date: 2015-11-13
  11
  12 usage() {
  13         cat <<EOF
  14 Usage: $0 [options] command
  15
  16 Commands:
  17
  18 ignore [PACKAGE] [PACKAGE...]
  19     Ignore package list - packages fits given mask will be invisible.
  20
  21 hold [PACKAGE] [PACKAGE...]
  22     Prevent package listed from being upgraded if they are already installed.
  23
  24 keep_downloads yes|no
  25     Do not remove downloaded packages after its successful installation.
  26
  27 EOF
  28 }
  29
  30 die() {
  31         echo >&2 "$PROGRAM: $*"
  32         exit 1
  33 }
  34
  35 option_set() {
  36         local option="$1"; shift
  37         sed -i -re "/^#?$option\s*=/ s/.*/$option = $*/" "$poldek_conf"
  38 }
  39
  40 # parse command line args
  41 parse_arguments() {
  42         t=$(getopt -o h --long help -n "$PROGRAM" -- "$@")
  43         [ $? != 0 ] && exit $?
  44         eval set -- "$t"
  45
  46         while :; do
  47                 case "$1" in
  48                 -h|--help)
  49                         usage
  50                         exit 0
  51                 ;;
  52                 --)
  53                         shift
  54                         break
  55                 ;;
  56                 *)
  57                         die "Internal error: [$1] not recognized!"
  58                 ;;
  59                 esac
  60                 shift
  61         done
  62
  63         if [ $# = 0 ]; then
  64                 usage
  65                 exit 1
  66         fi
  67
  68         command=$1; shift
  69         arguments="$*"
  70 }
  71
  72 main() {
  73         parse_arguments "$@"
  74
  75         case "$command" in
  76                 ignore|hold)
  77                         option_set "$command" "$arguments"
  78                         ;;
  79                 keep_downloads)
  80                         option_set "keep downloads" "$arguments"
  81                         ;;
  82                 *)
  83                         die "Unknown command: $command"
  84                         ;;
  85         esac
  86 }
  87
  88 PROGRAM="${0##*/}"
  89 poldek_conf=/etc/poldek/poldek.conf
  90
  91 main "$@"