docker-adsb-ultrafeeder/rootfs/etc/s6-overlay/scripts/adsbx-stats

#!/command/with-contenv bash
# shellcheck shell=bash disable=SC2015,SC2016,SC1091,SC2001

source /scripts/common
source /scripts/interpret_ultrafeeder_config
s6wrap=(s6wrap --quiet --timestamps --prepend="$(basename "$0")" --args)

# Check if ADSBExchange is configured
if ! grep -i adsbexchange.com <<< "$ULTRAFEEDER_CONFIG" >/dev/null 2>&1; then
    "${s6wrap[@]}" echo "AdsbExchange not configured - no stats package needed"
    sleep infinity & wait $!
fi

# prep work:
mkdir -p /run/adsbexchange-stats

# Install the Stats package:
if [[ ! -f /etc/default/adsbexchange-stats ]]; then
    echo -e "UUID_FILE=/run/uuid\nJSON_PATHS=(\"/run/readsb\")" > /etc/default/adsbexchange-stats
fi
if [[ ! -f /usr/local/bin/json-status ]]; then
    if ! curl -sSL -o /usr/local/bin/json-status https://raw.githubusercontent.com/ADSBexchange/adsbexchange-stats/master/json-status; then
        "${s6wrap[@]}" echo "ERROR: AdsbExchange configure, but cannot download stats package! AdsbExchange will be fed but stats will not be available"
        sleep infinity & wait $!
    fi
    chmod 755 /usr/local/bin/json-status
fi

# set the UUID:
if [[ ! -f /usr/local/share/adsbexchange/adsbx-uuid ]]; then
    ADSBX_UUID="$(sed  's|.*adsbexchange.*uuid=\([a-f0-9-]\+\).*|\1|g' <<< "${READSB_CONF_ARR[@]}")" || true   # get UUID from ULTRAFEEDER_CONFIG if it exists
    ADSBX_UUID="${ADSBX_UUID:-${UUID}}" || true # ...else get it from the UUID param
    ADSBX_UUID="${ADSBX_UUID:-$(cat /proc/sys/kernel/random/uuid 2>/dev/null)}" || true # ...else generate a random one
    if [[ -n "$ADSBX_UUID" ]]; then
        mkdir -p /usr/local/share/adsbexchange
        echo "$ADSBX_UUID" > /usr/local/share/adsbexchange/adsbx-uuid
    else
        "${s6wrap[@]}" echo "WARNING: no UUID can be identified to be used with AdsbExchange; a random one will be generated every time the container is started."
    fi
fi

# wait until readsb is established...
if ! pgrep readsb >/dev/null; then
    if [[ -z "${LOGLEVEL}" ]] || [[ "${LOGLEVEL,,}" == "verbose" ]]; then
        "${s6wrap[@]}" echo "Delaying start of the AdsbExchange Stats module until container is established..."
    fi
    while ! pgrep readsb >/dev/null
        do
        sleep 2 & wait $!
    done
    # wait 2 seconds after readsb process exists
    sleep 2 & wait $!
fi

"${s6wrap[@]}" echo "invoking: /usr/local/bin/json-status"

"${s6wrap[@]}" /usr/local/bin/json-status