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: $0 [options] command
  15
  16 Commands:
  17
  18 ignore [PACKAGE] [PACKAGE...]
  19     Ignore package list - packages fits given mask will be invisible.
  20
  21 hold [PACKAGE] [PACKAGE...]
  22     Prevent package listed from being upgraded if they are already installed.
  23
  24 keep_downloads yes|no
  25     Do not remove downloaded packages after its successful installation.
  26
  27 cachedir /var/cache/poldek
  28     Cache directory for downloaded files. NOTE that parent directory of cachedir must exist.
  29
  30 EOF
  31 }
  32
  33 die() {
  34         echo >&2 "$PROGRAM: $*"
  35         exit 1
  36 }
  37
  38 option_set() {
  39         local option="$1"; shift
  40         sed -i -re "/^#?$option\s*=/ s#.*#$option = $*#" "$poldek_conf"
  41 }
  42
  43 # parse command line args
  44 parse_arguments() {
  45         t=$(getopt -o hc: --long help -n "$PROGRAM" -- "$@")
  46         [ $? != 0 ] && exit $?
  47         eval set -- "$t"
  48
  49         while :; do
  50                 case "$1" in
  51                 -h|--help)
  52                         usage
  53                         exit 0
  54                 ;;
  55                 -c)
  56                         shift
  57                         poldek_conf=$1
  58                 ;;
  59                 --)
  60                         shift
  61                         break
  62                 ;;
  63                 *)
  64                         die "Internal error: [$1] not recognized!"
  65                 ;;
  66                 esac
  67                 shift
  68         done
  69
  70         if [ $# = 0 ]; then
  71                 usage
  72                 exit 1
  73         fi
  74
  75         command=$1; shift
  76         arguments="$*"
  77 }
  78
  79 main() {
  80         parse_arguments "$@"
  81
  82         case "$command" in
  83                 ignore|hold)
  84                         option_set "$command" "$arguments"
  85                         ;;
  86                 keep_downloads)
  87                         option_set "keep downloads" "$arguments"
  88                         ;;
  89                 cachedir|cache_dir)
  90                         option_set "cachedir" "$arguments"
  91                         ;;
  92                 *)
  93                         die "Unknown command: $command"
  94                         ;;
  95         esac
  96 }
  97
  98 PROGRAM="${0##*/}"
  99 poldek_conf=/etc/poldek/poldek.conf
 100
 101 main "$@"