freebsd-ports/multimedia/freevo/pkg-install

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

user=freevo
group=freevo
uid=523
gid=523
home=/var/db/freevo
perm=775

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
}

creategroup() {
    if /usr/sbin/pw groupshow "${group}" 2>/dev/null; then
	echo "You already have a group \"${group}\", so I will use it."
    else
	echo "You need a group \"${group}\"."
	if ([ -n "$BATCH" ] || yesno "Would you like me to create it" y); then
	    /usr/sbin/pw groupadd ${group} -g ${gid} || exit
	    echo "Done."
	else
	    echo "Please create it, and try again."
	    exit 1
	fi
    fi
}

createuser() {
    if /usr/sbin/pw user show "${user}" 2>/dev/null; then
	echo "You already have a user \"${user}\", so I will use it."
	pw usermod "${user}" -d ${home}
    else
	echo "You need a user \"${user}\"."
	if ([ -n "$BATCH" ] || yesno "Would you like me to create it" y); then
	    /usr/sbin/pw useradd ${user} -u ${uid} -g ${group} -d ${home} \
		-s /bin/sh -c "Freevo Owner" || exit
	    echo "Done."
	else
	    echo "Please create it, and try again."
	    exit 1
	fi
    fi
}

createhome() {
    if [ -d ${home} ]; then
	echo "You already have a cache directory \"${home}\", so I will use it."
	chown ${user}:${group} ${home} # Should we recurse?
	chmod ${perm} ${home} # Should we recurse?
    else
	echo "You need a cache directory \"${home}\"."
	if ([ -n "$BATCH" ] || yesno "Would you like me to create it" y); then
	    mkdir ${home}
	    chown ${user}:${group} ${home}
	    chmod ${perm} ${home}
	    echo "Done."
	else
	    echo "Please create it, and try again."
	    exit 1
	fi
    fi
}

if [ x"$1" = xPRE-INSTALL ]; then
    creategroup;
    createuser;
    createhome;
fi