freebsd-ports/multimedia/freevo/pkg-deinstall

#!/bin/sh
# Stolen from mail/nullmailer

user=freevo
group=freevo
home=/var/db/freevo

ask() {
    local question default answer

    question=$1
    default=$2
    if [ -z "${PACKAGE_BUILDING}" ]; then
        read -p "${question} [${default}]? " answer
    fi
    if [ x${answer} = x ]; then
        answer=${default}
    fi
    echo ${answer}
}

yesno() {
    local dflt question answer

    question=$1
    dflt=$2
    while :; do
	answer=$(ask "${question}" "${dflt}")
	case "${answer}" in
	[Yy]*)		return 0;;
	[Nn]*)		return 1;;
	esac
	echo "Please answer yes or no."
    done
}

delete_account() {
    local u g home

    u=$1
    g=$2
    if yesno "Do you want me to remove group \"${g}\"" y; then
	pw groupdel -n ${g}
	echo "Done."
    fi
    if yesno "Do you want me to remove user \"${u}\"" y; then
	pw userdel -n ${u}
	echo "Done."
    fi
}

delete_home() {
    if [ -d ${home} ]; then
	if yesno "Do you want me to remove your Freevo cache \"${home}\"" n; then
	    rm -rf ${home}
	    echo "Done."
	fi
    fi
}

if [ x"$2" = xPOST-DEINSTALL ]; then
    delete_account ${user} ${group};
    delete_home;
fi