#!/bin/bash
#  $HeadURL$ $LastChangedRevision$
set -e
PROGNAME=$(basename $0)

#  Load support functions
. $(pcms-config PCMS_SHARE_PREFIX)/scripts/support.sh

main()
{
    #  Defaults for options
    VERBOSELEVEL=2
    OPT_FILE=/etc/fstab
    OPT_TOUCH=false

    #  Process options
    while [ $# -ge 1 ]; do
        case $1 in
            --file=*)        OPT_FILE=${1#*=} ;;
            --touch)         OPT_TOUCH=true ;;
            --debug=*)       VERBOSELEVEL=${1#*=} ;;
            -d)              VERBOSELEVEL=$2; shift ;;
            -v|--verbose)    VERBOSELEVEL=3 ;;
            --)              shift; break ;;
            -*)              error "main: $1: bad option" ;;
            *)               break ;;
        esac
        shift
    done

    #  Process arguments
    [ $# = 1 ] || usage
    eval set -- $(encode --decode "$1")
    [ $# -eq 6 ] || usage
    DEVICE="$1"
    MNTPNT="$2"
    TYPE="$3"
    MNTOPTS="$4"
    DUMP="$5"
    FSCK="$6"

    #  Sanity checks and derivations
    FORMATTED_EXPORT="$(printf "%-50s %-24s %-10s %-40s %-1s %-1s" $DEVICE $MNTPNT $TYPE $MNTOPTS $DUMP $FSCK)"

    #  Guts
    lineinfile --replace="^$DEVICE[ \\t]+.*" --text="$FORMATTED_EXPORT" --file=$OPT_FILE 2>/dev/null || lineinfile --after=EOF --text="$FORMATTED_EXPORT" --file=$OPT_FILE
    ! $OPT_TOUCH || touch $OPT_FILE
    [ $TYPE = swap ] || mkdir -p $MNTPNT
}

usage() { echo "Usage: $PROGNAME [ --file=<file> ] <device>@<mntpnt>@<type>@<mntopts>@<dump>@<fsck>" >&2; exit 1; }

main "$@"