#!/bin/bash
#
# a2ps-lpr-wrapper - lp/lpr wrapper script for GNU a2ps
#

TEMP=`getopt -o d: -n 'a2ps-lpr-wrapper' -- "$@"`
a2ps_printer=""

if [ $? != 0 ]; then echo "Terminating..." >&2; exit 1; fi

# Note the quotes around `$TEMP': they are essential!
eval set -- "$TEMP"

while true ; do
  case "$1" in
    -d) a2ps_printer=$2; shift 2 ;;
    --) shift; break ;;
     *) echo "usage: a2ps-lpr-wrapper -d [printer] [files]"; exit 1 ;;
  esac
done

# If lp (from CUPS) exists, just use it.
if [ command -pv lp ]; then
  if [ "x$a2ps_printer" != "x" ]; then d="-d $a2ps_printer"; else d=""; fi
  command -p lp $d "$@"
elif [ command -pv lpr ]; then
  # In case lp is not available, then fall back to lpr.
  if [ "x$a2ps_printer" != "x" ]; then P="-P $a2ps_printer"; else P=""; fi
  command -p lpr $P "$@"
elif [ command -pv rlpr ]; then
  # In case lpr is not available, then fall back to rlpr.
  if [ "x$a2ps_printer" != "x" ]; then P="-P $a2ps_printer"; else P=""; fi
  command -p rlpr $P "$@"
else
  # If none of lp, lpr and rlpr is available, then fail
  echo "$0: lp/lpr/rlpr missing!"
  exit 1
fi