#!/bin/bash

collectCrashReport() {
    # teleport to cache dir
    cd /mnt/cache
    # remove any previous report
    rm -rf crash/crashreport_*
    # create report directory
    directory=crashreport_`cat /etc/hostname`_$(date +%Y%m%d%H%M%S)
    mkdir $directory
    cd $directory
    # snatch all the logs
    cp -r /var/log/ .
    ps --no-headers -ax > processes.dump
    # dump dmesg to file
    dmesg > dmesg.dump
    # create crash dir
    mkdir crash
    # zip the whole thing
    zip -qr /mnt/cache/crash/"$directory.zip" .
    # remove collection dir
    rm -rf /mnt/cache/crashreport_*
    # done and done
}

# check if already running and kill
PIDFILE=/var/run/crashcollector.pid
# check if already running
if [ -f $PIDFILE ]; then
    kill `cat $PIDFILE`
fi
echo $$ > $PIDFILE

cleanup() {
    rm -f $PIDFILE
    exit 0
}
# trap them signals
trap "cleanup" INT TERM EXIT

that_awesome_pipe="CCPipe"
[ -p $that_awesome_pipe ] || mkfifo $that_awesome_pipe
chmod 766 $that_awesome_pipe
while :; do
    if read line; then
        case $line in
        "collect")
            collectCrashReport
            ;;
        *)
            log "Received bad command $line, ignoring..."
            ;;
        esac
    fi
done <"$that_awesome_pipe"

[Unit]
Description=Crash report collector
After=network.target

[Service]
Type=simple
ExecStart=/usr/bin/crashCollector
ExecStop=/usr/bin/kill -9 `cat /var/run/crashcollector.pid`
KillMode=process
Restart=always
RestartSec=3

[Install]
WantedBy=multi-user.target