source: gutenbach-queue/lib/queue @ e87e682

#!/bin/bash

found_current=

if [ -e "/var/run/gutenbach/queue_times" ]; then
    rm "/var/run/gutenbach/queue_times"
fi

if [ -e /usr/lib/gutenbach/config/printername ]; then
    printername=$(cat /usr/lib/gutenbach/config/printername)

    cd /var/spool/lpd/"$printername"/
    for i in $(ls . | grep ^hf); do
        done=$(cat "$i" | grep done)
    if [ ! -n "$done" ]; then
        timestamp=$(cat "$i" | grep ^job_time= | sed 's/.*=//')
        echo "$timestamp:$i" >> /var/run/gutenbach/queue_times
    fi
    done

    if [ -e /var/run/gutenbach/queue_times ]; then
        for i in $(sort /var/run/gutenbach/queue_times); do
            i=$(echo "$i" | sed 's/.*://')
            prefix="df"${i:2}
            for j in "$prefix"*; do song="$j"; done

            user=$(cat "$i" | grep ^P=)
            user=${user:2}
            
            if [ -e /var/run/gutenbach/exiftool_data ]; then
                rm /var/run/gutenbach/exiftool_data
            fi

            exiftool "$song" >> /var/run/gutenbach/exiftool_data
            title=$(cat /var/run/gutenbach/exiftool_data | grep "^Title " | sed 's/.*: //')
            artist=$(cat /var/run/gutenbach/exiftool_data | grep "^Artist " | sed 's/.*: //')

            if [ -z "$found_current" ]; then
                host=$(cat "$i" | grep ^H=)
                host=${host:2}
                filenm="$(cat $i | grep "^filenames" | sed -e 's/filenames=//')"
                album=$(cat /var/run/gutenbach/exiftool_data | grep "^Album " | sed 's/.*: //')
                echo "$user@$host is currently playing: "
                echo "$filenm"
                echo "'$title'"
                echo "by '$artist'"
                echo "on '$album'"
                echo ""
                echo "Coming up in the queue:"
                found_current="true" 
            else
                echo "$user: '$title' by '$artist'"
            fi
        done
    fi
else
    echo "Error: Printer name configuration file /usr/lib/gutenbach/config/printername does not exist!"
    exit 1
fi