CORE-POS/IS4C

#!/bin/bash
# posd.sh

# Usage: posd.sh stop|start|restart|status|clean|swap|remove

if [ $# -lt 1 ] ; then
    echo "Usage: posd.sh stop|start|restart|status|clean|swap|remove"
    exit 0
fi

# --FUNCTIONALITY- - - - - - - - - - - - - - - - - -

#  + Run the functions of the scanner-scale driver/daemon wrapper.
#  + Swap in new versions of the scanner-scale driver/daemon wrapper.
#  + Remove the scanner-scale driver/daemon wrapper.

# --COMMENTS - - - - - - - - - - - - - - - - - - - -

# 27Oct12 EL Add remove option.
#  9Sep12 EL Check that the named wrapper exists.
#            Change to posdriver-ssd-debian
# 13May12 EL Change POSD from posdriver-ssd to posdriver2-ssd to be
#             different from the git upstream version, WFC.
# 14Apr12 EL Add swap for swapping in new versions of posdriver-ssd
# 13Apr12 EL As wrapper for service posdriver-ssd

# --CONSTANTS- - - - - - - - - - - - - - - - - - - -

POSD=posdriver-ssd-debian
SSD=/var/www/IS4C/pos/is4c-nf/scale-drivers/drivers/rs232
DHOME=/var/run/$POSD

# --VARIABLES- - - - - - - - - - - - - - - - - - - -

NOW=`date "+%H:%M:%S"`

# --MAIN - - - - - - - - - - - - - - - - - - - - - -

if [ "$1" = "swap" ] ; then
    if [ ! -f $SSD/$POSD ] ; then
        echo "$POSD does not exist at $SSD."
        exit 1
    fi
    if [ -f ${DHOME}/ssdp.pid ] ; then
        ANS=
        printf "$POSD seems to be running.  OK to stop it? [y/N] > "; read ANS
        if [ "$ANS" = "y" ] ; then
            sudo service $POSD stop
            echo "Stopped."
        else
            echo "OK. Bye."
            exit 0
        fi
    fi
    cat $POSD | sudo tee /etc/init.d/$POSD > /dev/null
    RETVAL=$?
    if [ $? -eq 0 ] ; then
        echo "swap OK. now: $NOW"
        sudo chmod 755 /etc/init.d/$POSD
        ls -l /etc/init.d/$POSD
        ANS=
        printf "Do you want to start it now? [y/N] > "; read ANS
        if [ "$ANS" = "y" ] ; then
            sudo service $POSD start
            echo "Started. Bye."
        else
            echo "OK. Bye."
            exit 0
        fi
    else
        printf "swap failed because: >${RETVAL}<\n";
    fi
    exit
elif [ "$1" = "remove" ] ; then
    if [ ! -f /etc/init.d/$POSD ] ; then
        echo "The wrapper: /etc/init.d/$POSD doesn't exist."
        exit 1
    fi
    if [ -f ${DHOME}/ssdp.pid ] ; then
        ANS=
        printf "$POSD seems to be running.  OK to stop it? [y/N] > "; read ANS
        if [ "$ANS" = "y" ] ; then
            sudo service $POSD stop
            echo "Stopped."
        else
            echo "OK. Bye."
            exit 0
        fi
    fi
    if [ ! -f $SSD/$POSD ] ; then
        echo "There is no local copy of $POSD at $SSD"
        echo " Will not rm from /etc/init.d/";
        exit 1;
    else
        sudo rm /etc/init.d/$POSD
        echo "Removed. Bye."
        exit 0
    fi
else
    if [ ! -f /etc/init.d/$POSD ] ; then
        echo "The wrapper: /etc/init.d/$POSD doesn't exist."
        if [ -f $SSD/$POSD ] ; then
            echo "It does exist at $SSD."
            echo "You could try using this utility with the swap option to install it."
        fi
        exit 1
    fi
    sudo service $POSD $1
    exit
fi