mysql-server script

#!/bin/sh
#
# $FreeBSD: ports/databases/mysql55-server/files/mysql-server.in,v 1.2 2012/11/17 05:55:12 svnexp Exp $
#

# PROVIDE: mysql
# REQUIRE: LOGIN
# KEYWORD: shutdown

#
# Add the following line to /etc/rc.conf to enable mysql:
# mysql_enable (bool):  Set to "NO" by default.
#                       Set it to "YES" to enable MySQL.
# mysql_limits (bool):  Set to "NO" by default.
#                       Set it to yes to run `limits -e -U mysql`
#                       just before mysql starts.
# mysql_dbdir (str):    Default to "/var/db/mysql"
#                       Base database directory.
# mysql_pidfile (str):  Custum PID file path and name.
#                       Default to "${mysql_dbdir}/${hostname}.pid".
# mysql_args (str):     Custom additional arguments to be passed
#                       to mysqld_safe (default empty).
#

. /etc/rc.subr

name="mysql"
rcvar=mysql_enable

load_rc_config $name

: ${mysql_enable="NO"}
: ${mysql_limits="NO"}
: ${mysql_dbdir="/var/db/mysql"}

mysql_user="mysql"
mysql_limits_args="-e -U ${mysql_user}"
pidfile=${mysql_pidfile:-"${mysql_dbdir}/`/bin/hostname`.pid"}
command="/usr/sbin/daemon"
command_args="-c -f /usr/local/bin/mysqld_safe --defaults-extra-file=${mysql_dbdir}/my.cnf --user=${mysql_user} --datadir=${mysql_dbdir} --pid-file=${pidfile} ${mysql_args}"
procname="/usr/local/libexec/mysqld"
start_precmd="${name}_prestart"
start_postcmd="${name}_poststart"
mysql_install_db="/usr/local/bin/mysql_install_db"
mysql_install_db_args="--basedir=/usr/local --datadir=${mysql_dbdir} --force"

mysql_create_auth_tables()
{
        eval $mysql_install_db $mysql_install_db_args >/dev/null 2>/dev/null
        [ $? -eq 0 ] && chown -R ${mysql_user}:${mysql_user} ${mysql_dbdir}
}

mysql_prestart()
{
        if [ ! -d "${mysql_dbdir}/mysql/." ]; then
                mysql_create_auth_tables || return 1
        fi
        if checkyesno mysql_limits; then
                eval `/usr/bin/limits ${mysql_limits_args}` 2>/dev/null
        else
                return 0
        fi
}

mysql_poststart()
{
        local timeout=15
        while [ ! -f "${pidfile}" -a ${timeout} -gt 0 ]; do
                timeout=$(( timeout - 1 ))
                sleep 1
        done
        return 0
}

run_rc_command "$1"