freebsd-ports/net/AquaGatekeeper2/pkg-install

#!/bin/sh

USER=agk
UID=172
GROUP=${USER}
GID=${UID}

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
}

make_account() {
    local u g uid gid gcos

    u=$1
    uid=$2
    g=$3
    gid=$4
    gcos=$5

    if pw group show "${g}" >/dev/null 2>&1; then
	echo "You already have a group \"${g}\", so I will use it."
    else
	echo "You need a group \"${g}\"."
	if which -s pw && yesno "Would you like me to create it" y; then
	    pw groupadd -n ${g} -g ${gid} || exit
	    echo "Done."
	else
	    echo "Please create it, and try again."
	    if ! grep -q "^${u}:" /etc/passwd; then
		echo "While you're at it, please create a user \"${u}\" too,"
		echo "with a default group of \"${g}\"."
	    fi
	    exit 1
	fi
    fi
    
    if pw user show "${u}" >/dev/null 2>&1; then
	echo "You already have a user \"${u}\", so I will use it."
    else
	echo "You need a user \"${u}\"."
	if which -s pw && yesno "Would you like me to create it" y; then
	    pw useradd -n ${u} -u ${uid} -g ${g} -h - -d /nonexistent \
		-s /nonexistent -c "${gcos}" || exit
	    echo "Done."
	else
	    echo "Please create it, and try again."
	    exit 1
	fi
    fi
}

[ "$2" = POST-INSTALL ] || exit 0

make_account ${USER} ${UID} ${GROUP} ${GID} "AquaGateKeeper"