#!/usr/bin/sh
#----------------------------------------------------------------------------
# /var/install/bin/setup-system-filesystems-mdadm-create-conf
#
# Creation:     2011-10-02 hbfl
# Last Update:  $Id$
#
# Copyright (c) 2011-@@YEAR@@ Holger Bruenjes, holgerbruenjes(at)gmx(dot)net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#----------------------------------------------------------------------------

# include eislib
. /var/install/include/eislib

package_name='mdadm'
VERSION=3.0.1

#exec 2> /tmp/mdadm-create-conf$$
#set -x

# ---------------------------------------------------------------------------
# create header
# ---------------------------------------------------------------------------
create_conf_file()
{
    cat > ${mdadm_conf} <<EOF
#----------------------------------------------------------------------------
#  mdadm.conf file generated by ${package_name} version: ${VERSION}
#
#  Do not edit this file, edit /etc/config.d/${package_name}
#  Creation date: ${EISDATE} Time: ${EISTIME}
#----------------------------------------------------------------------------
EOF
}

# ---------------------------------------------------------------------------
# get RAID(MD) devices
# ---------------------------------------------------------------------------
get_md_devices()
{
    md_devices=$(awk '/^md[0-9][0-9]*[[:space:]]*:/ { print $1}' \
                 /proc/mdstat 2>/dev/null |
                 sort  -u)

    if [ -n "${md_devices}" ]
    then
        md_devices_n=$(echo "${md_devices}" | wc -l)
        retvar=0
    else
        if ! "${quiet:-false}"
        then
            echo
            mecho --error " No RAID(MD) devices found "
            echo
            anykey
        fi
        retvar=1
    fi
}

# ---------------------------------------------------------------------------
# get RAID(MD) discs
# ---------------------------------------------------------------------------
get_md_discs()
{
    echo "DEVICE partitions" >>${mdadm_conf}

    # get devices
    mdadm --detail --scan >>${mdadm_conf}
  
    echo "PROGRAM ${mdadm_event_handler}" >>${mdadm_conf}

    for i in 0 1 2 3 4
    do
        if grep -q "dev/md${i} " /etc/mdadm/mdadm.conf 
        then 
            sed -i "s|dev/md${i}|dev/md/${i}|" /etc/mdadm/mdadm.conf  
        fi
    done
}

# ---------------------------------------------------------------------------
# main
# ---------------------------------------------------------------------------
main()
{
    if [ "${1}" = "--quiet" ]
    then 
        quiet=true
    fi

    mdadm_event_handler=/usr/libexec/mdadm/mdadm-event-handler.sh
    mdadm_conf=/etc/${package_name}/${package_name}.conf

    get_md_devices

    if [ ${retvar:-1} -eq 0 ]
    then
        mkdir -p /etc/${package_name}
     
        create_conf_file
    
        get_md_discs ${md_devices}
    else
        rm -f ${mdadm_conf}
        exit 1
    fi

	exit 0
}

# ---------------------------------------------------------------------------
# call function main
# ---------------------------------------------------------------------------
main "${@}"
           
# ---------------------------------------------------------------------------
#  end
# ---------------------------------------------------------------------------