freebsd-ports/japanese/postgresql7/pkg-install

#!/bin/sh
# an installation script for postgresql

check_pw()
{
    if which -s pw; then
	:
    else
	cat <<EOF

This system looks like a pre-2.2 version of FreeBSD.  We see that it
is missing the "pw" utility.  We need this utility.  Please get and
install it, and try again.  You can get the source from:

  ftp://ftp.freebsd.org/pub/FreeBSD/FreeBSD-current/src/usr.sbin/pw.tar.gz

EOF
	exit 1
    fi
}

ask() {
    local question default answer

    question=$1
    default=$2
    if [ -z "${PACKAGE_BUILDING}" ]; then
	read -p "${question} (y/n) [${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
}

case $2 in
PRE-INSTALL)

    ## Hack /etc/master.passwd ##
    # check
    id_70=`id -nu 70 2> /dev/null`
    id_pgsql=`id -u ${PGSQL_UID} 2> /dev/null`
    if [ X"$id_pgsql" != X ]; then
	exit 0
    elif [ X"$id_70" != X ]; then
	cat <<EOF

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
This system already has an account whose name is '$id_70' and ID number is 70.

   '`id $id_70`'

For PostgreSQL in this port or package, UID:GID of '${PGSQL_UID}' has to be 70:70.
Please try again after you delete the account.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
EOF
	exit 1
    fi

    # add an account of PostgreSQL to this system
    echo ""
    echo "You need a group '${PGSQL_GID}' whose ID number is 70"
    if yesno "Would you like to create it automatically?" y; then
	# We need a command 'pw(8)'
	check_pw
	pw groupadd ${PGSQL_GID} -g 70 || exit
    else
	echo "Please create it, and try again."
	exit 1
    fi
    echo ""
    echo "You need an account '${PGSQL_UID}' whose ID number is 70"
    if yesno "Would you like to create it automatically?" y; then
	# We need a command 'pw(8)'
	check_pw
	pw useradd ${PGSQL_UID} -u 70 -g ${PGSQL_GID} -h - -d ${PKG_PREFIX}/${INSTALL_DIR} \
		-s /bin/sh -c "PostgreSQL pseudo-user" || exit
    else
	echo "Please create it, and try again."
	exit 1
    fi
    ;;
esac