#!/bin/sh
### BEGIN INIT INFO
# Provides:          mount-all.sh
# Required-Start:    $loop
# Required-Stop:
# Default-Start:     S
# Default-Stop:      0 1 6
# Position:          S38eisconfig
# Short-Description: mount config.d folder from data to root partition
### END INIT INFO
# ---------------------------------------------------------------------------

### -------------------------------------------------------------------------
### start/stop and failure message color output
### -------------------------------------------------------------------------
. /lib/lsb/init-functions

### -------------------------------------------------------------------------
### mount from data to the root partition exists
### -------------------------------------------------------------------------
mount_eisfair_dir()
{
    local datadir=$1
    local rootdir=$2
    local txtmsg=$3
    if [ -e "$datadir" ]
    then
        log_begin_msg "$txtmsg"
        if [ -z "`mount | grep $datadir `" ]
        then
            mkdir -p $rootdir
            if cp -au ${rootdir}/* ${datadir}/ >/dev/null 2>&1
            then
                echo -n " updated "
                rm -rf ${rootdir}/*
            fi
            mount --rbind $datadir $rootdir
            log_end_msg $?
        else
            log_end_msg 0
        fi
    fi
}


### -------------------------------------------------------------------------
### umount from the root partition if exists
### -------------------------------------------------------------------------
umount_eisfair_dir()
{
    local datadir=$1
    local rootdir=$2
    local txtmsg=$3
    if [ -e $datadir ]
    then
        log_begin_msg "$txtmsg"
        if [ -n "`mount | grep $datadir `" ]
        then
            umount $rootdir
            log_end_msg $?
        else
            log_end_msg 0
        fi
    fi
}


### -------------------------------------------------------------------------
### status check
### -------------------------------------------------------------------------
status_mount_dir()
{
    local datadir=$1
    local txtmsg=$2
    if [ -e $datadir ]
    then
        log_begin_msg "$txtmsg"
        if [ -n "`mount | grep $datadir `" ]
        then
            log_end_msg $?
        else
            log_end_msg 0
        fi
    fi
}

### -------------------------------------------------------------------------
### status check
### -------------------------------------------------------------------------
read_data_mounts_file()
{
    [ -e /etc/datamount.conf ] || exit 0
    local startstop="$1"
    while read datapath rootpath comment
    do
        echo "$datapath" | grep -q '^#' && continue
        case "$startstop" in
            start)
                mount_eisfair_dir "$datapath" "$rootpath" "$comment"
            ;;
            stop)
                umount_eisfair_dir "$datapath" "$rootpath" "$comment"
            ;;
            status)
                status_mount_dir "$datapath" "$comment"
            ;;
        esac
    done < /etc/datamount.conf
}

### -------------------------------------------------------------------------
### create xen console if necessary
### -------------------------------------------------------------------------
create_xen_console()
{
    #----------------------------------------------------------------------------
    # activate/deactivate hvc0
    #----------------------------------------------------------------------------
    [ -e /var/install/include/virtlib ] && . /var/install/include/virtlib
    is_running_in_xendomu
    if [ $? = 0 ]
    then
        if [ -c /dev/hvc0 ]
        then
            # turn on hvc0
            sed -i -e 's/^#respawn*/respawn/' /etc/event.d/hvc0
            sed -i -e 's/^#exec*/exec/' /etc/event.d/hvc0
            # turn off xvc0
            sed -i -e 's/^respawn*/#respawn/' /etc/event.d/xvc0
            sed -i -e 's/^exec*/#exec/' /etc/event.d/xvc0
        fi
        if [ -c /dev/xvc0 ]
        then
            # turn off hvc0
            sed -i -e 's/^respawn*/#respawn/' /etc/event.d/hvc0
            sed -i -e 's/^exec*/#exec/' /etc/event.d/hvc0
            # turn on xvc0
            sed -i -e 's/^#respawn*/respawn/' /etc/event.d/xvc0
            sed -i -e 's/^#exec*/exec/' /etc/event.d/xvc0
        fi
    else
        sed -i -e 's/^respawn*/#respawn/' /etc/event.d/hvc0
        sed -i -e 's/^exec*/#exec/' /etc/event.d/hvc0
        sed -i -e 's/^respawn*/#respawn/' /etc/event.d/xvc0
        sed -i -e 's/^exec*/#exec/' /etc/event.d/xvc0
    fi
}

### -------------------------------------------------------------------------
### main
### -------------------------------------------------------------------------
case "$1" in
    start)
        create_xen_console
        mount_eisfair_dir /data/etc/config.d /etc/config.d "Mount eisfair config.d on /data..."
        mount_eisfair_dir /data/home /home "Mount eisfair home on /data..."
        mount_eisfair_dir /data/var/lib /var/lib "Mount eisfair /var/lib on /data..."
        read_data_mounts_file start         
        ;;
    stop)
        umount_eisfair_dir /data/etc/config.d /etc/config.d "Umount eisfair configuration config.d..."
        umount_eisfair_dir /data/home /home "Umount eisfair /home..."
        umount_eisfair_dir /data/var/lib /var/lib "Umount eisfair /var/lib..."
        read_data_mounts_file stop         
        ;;
    status)
        status_mount_dir /data/etc/config.d "Mount eisfair config.d on /data..."
        status_mount_dir /data/home         "Mount eisfair home on /data..."
        status_mount_dir /data/var/lib      "Mount eisfair /var/lib on /data..."
        read_data_mounts_file status
        ;;
    restart|reload|force-reload)
        $0 stop
        $0 start
        ;;
    *)
        log_action_msg "Usage: /etc/init.d/cron {start|stop|status|restart|reload|force-reload}"
        exit 2
        ;;
esac
exit 0