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https://github.com/sdr-enthusiasts/docker-adsb-ultrafeeder.git
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50 lines
2.1 KiB
Text
50 lines
2.1 KiB
Text
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#!/command/with-contenv bash
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# shellcheck shell=bash disable=SC2015,SC2016,SC1091,SC2001,SC2154
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#---------------------------------------------------------------------------------------------
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# Copyright (C) 2023-2024, Ramon F. Kolb (kx1t) and contributors
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation, either version 3 of the License, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along with this program.
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# If not, see <https://www.gnu.org/licenses/>.
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#---------------------------------------------------------------------------------------------
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source /scripts/common
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# Check if GPSD_IN has been enabled
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if ! grep -qi "gpsd_in" <<< "$ULTRAFEEDER_CONFIG" && ! grep -qi "gpsd_in" <<< "$ULTRAFEEDER_NET_CONNECTOR"; then
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"${s6wrap[@]}" echo "GPSD not enabled - no need to check receiver location"
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exec sleep infinity
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fi
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# Now wait a bit to allow GPS to establish itself
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sleep "${GPSD_INITIAL_WAIT:-300}"
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# Make sure that receiver.json exists; if it doesn't we need to wait for it
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while ! [[ -f /run/readsb/receiver.json ]]; do
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sleep 1 & wait $!
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done
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# Get initial lat/lon/alt
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lat="$(jq -r .lat /run/readsb/receiver.json)"
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lon="$(jq -r .lon /run/readsb/receiver.json)"
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while :; do
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sleep "${GPSD_CHECK_INTERVAL:30}" & wait $!
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new_lat="$(jq -r .lat /run/readsb/receiver.json)"
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new_lon="$(jq -r .lon /run/readsb/receiver.json)"
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new_alt="$(jq -r .alt_m_amsl /run/readsb/receiver.json)"
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distance="$(nice -n 20 distance "$lat" "$lon" "$new_lat" "$new_lon")"
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if (( ${distance%%.*} > ${GPSD_MIN_DISTANCE} )); then
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"${s6wrap[@]}" echo "Receiver moved ${distance%%.*} meters - restarting all mlat-clients"
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pkill -f "/usr/bin/python3 /usr/bin/mlat-client" >/dev/null 2>&1
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fi
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done
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