raise-or-run-setup

#!/bin/bash
# User setup script.
# (C) Mark Blakeney, Aug 2016.

PROG="$(basename $0)"
NAME=${PROG%-*}

BINDIR="/usr/bin"
DOCDIR="/usr/share/doc/$NAME"

usage() {
    echo "Usage:"
    echo "As root: sudo $PROG install|uninstall"
    echo
    echo "(-d option sets DESTDIR for install/uninstall)"
    exit 1
}

# Process command line options
DESTDIR=""
while getopts d: c; do
    case $c in
    d) DESTDIR="$OPTARG";;
    \?) usage;;
    esac
done

shift $((OPTIND - 1))

if [[ $# -ne 1 ]]; then
    usage
fi

cmd="$1"

if [[ $cmd == install || $cmd == uninstall ]]; then
    DESTDIR="${DESTDIR%%+(/)}"
    if [[ -z $DESTDIR && $(id -un) != root ]]; then
	echo "Install or uninstall must be run as sudo/root."
	exit 1
    fi

    if [[ $cmd == install ]]; then
	install -CDv -m 755 -t $DESTDIR$BINDIR $NAME
	install -CDv -m 644 -t $DESTDIR$DOCDIR README.md
    else
	rm -rfv $DESTDIR$DOCDIR
	rm -rfv $DESTDIR$BINDIR/$NAME
    fi
else
    usage
fi

exit 0