grsat-wrapper.sh

#!/bin/bash
# {command} {{ID}} {{FREQ}} {{TLE}} {{TIMESTAMP}} {{BAUD}} {{SCRIPT_NAME}}
export PYTHONPATH=/usr/local/lib/python3/dist-packages/

CMD="$1"     # $1 [start|stop]
ID="$2"      # $2 observation ID
#FREQ="$3"    # $3 frequency
TLE="$4"     # $4 used tle's
DATE="$5"    # $5 timestamp Y-m-dTH-M-S
BAUD="$6"    # $6 baudrate
SCRIPT="$7"  # $7 script name, satnogs_bpsk.py

PRG="gr-satellites:"
TMP=${SATNOGS_APP_PATH:-/tmp/.satnogs}
DATA=${SATNOGS_OUTPUT_PATH:-/tmp/.satnogs/data/}
GRSBIN=$(command -v gr_satellites)
LOG="$TMP/grsat_$ID.log"
KSS="$TMP/grsat_$ID.kss"
GRPID="$TMP/grsat_$SATNOGS_STATION_ID.pid"

# Settings
KEEPLOGS=no       # yes = keep, all other = remove KSS LOG
if [ -n "$GRSAT_KEEPLOGS" ]; then
    KEEPLOGS=$GRSAT_KEEPLOGS
fi

# uncomment and populate SELECTED with space separated norad id's
# to selectively submit data to the network
# if it's unset it will send all KISS demoded data, with possible dupes
#SELECTED="39444 44830 43803 42017 44832 40074"
if [ -n "$GRSAT_SELECTED" ]; then
    SELECTED=$GRSAT_SELECTED
fi

#DATE format fudge Y-m-dTH-M-S to Y-m-dTH:M:S
B=${DATE//-/:}
DATEF=${DATE:0:11}${B:11:8}

SATNAME=$(echo "$TLE" | jq .tle0 | sed -e 's/ /_/g' | sed -e 's/[^A-Za-z0-9._-]//g')
NORAD=$(echo "$TLE" | jq .tle2 | awk '{print $2}')
echo "$PRG Observation: $ID, Norad: $NORAD, Name: $SATNAME, Script: $SCRIPT"

if [ -z "$UDP_DUMP_HOST" ]; then
	echo "Warning: UDP_DUMP_HOST not set, no data will be sent to the demod"
fi

if [ -z "$UDP_DUMP_PORT" ]; then
        UDP_DUMP_PORT=57356
fi

if [ "${CMD^^}" == "START" ]; then
  echo "$PRG Starting observation $ID"
  SAMP=$(find_samp_rate.py "$BAUD" "$SCRIPT")
  if [ -z "$SAMP" ]; then  # default 48k if script not found
    SAMP=48000
    echo "$PRG WARNING: find_samp_rate.py did not return valid sample rate!"
  fi
  GROPT="$NORAD --samp_rate $SAMP --iq --udp --udp_port $UDP_DUMP_PORT --udp_raw --start_time $DATEF --kiss_out $KSS --ignore_unknown_args --satcfg"
  echo "$PRG running at $SAMP sps"
  $GRSBIN $GROPT > "$LOG" 2>> "$LOG" &
  echo $! > "$GRPID"
fi

if [ "${CMD^^}" == "STOP" ]; then
  if [ -f "$GRPID" ]; then
    echo "$PRG Stopping observation $ID"
    kill "$(cat "$GRPID")"
    rm -f "$GRPID"
  fi

  if [ -s "$KSS" ]; then
    if [ -z ${SELECTED+x} ] || [[ ${SELECTED} =~ ${NORAD} ]]; then
      echo "$PRG processing KISS data to network"
      if [ "$NORAD" == "43803" ]; then
        jy1sat_ssdv "$KSS" "${TMP}/data_${ID}_${DATE}" >> "$LOG"
        rm -f "${TMP}/data_${ID}_"*.ssdv
        mv "${TMP}/data_${ID}_"* "$DATA"
      elif [ "$NORAD" == "53385" ]; then
        kiss_geoscan.py "$KSS" "${DATA}/data_${ID}_"
      fi
      kiss_satnogs.py "$KSS" -j -d "${DATA}/data_${ID}_" >> "$LOG"
    else
      echo "$PRG not sending KISS data to network"
    fi
  else
    rm -f "$KSS" # purge empty kiss file
  fi

  if [ ! -s "$LOG" ]; then # purge empty logs
    rm -f "$LOG"
  fi

  if [ "${KEEPLOGS^^}" == "YES" ]; then
    echo "$PRG Keeping logs, you need to purge them manually."
  else
    rm -f "$LOG" "$KSS"
  fi
fi