EPG Update steuern - die 100ste

#!/bin/bash
# scanepg.sh
# EPG des VDR aktualisieren
# Author MegaV0lt, Version: 20120626

CHANNELSCONF=/var/lib/vdr/channels.conf
SVDRPSEND=/usr/bin/svdrpsend
MAXCHANNELS=100    # Maximal einzulesende Kanäle (channels.conf)
ZAPDELAY=12        # Wartezeit in Sekunden bis zum neuen Transponder
BACKUPCHANNEL=1 # Kanal nach dem Scan, falls das Auslesen scheitert

logger "Shell-Skript fuer EPG wird ausgeführt"

if [ ! -e ${CHANNELSCONF} ]; then
  echo "${CHANNELSCONF} nicht gefunden!"
  exit 1
fi

#set -x # Debug

declare -a CHANNELS
declare -a TRANSPONDERLISTE

while read -r CHANNEL; do
   [ "${CHANNEL:0:1}" = ":" ] && continue  # Marker auslassen (: an 1. Stelle)
   CHANNEL=${CHANNEL[@]// /_}          # Leerzeichen ersetzen
   CHANNELS=( "${CHANNELS[@]}" "${CHANNEL[@]}" ) # Zum Array hinzufügen
   [ ${#CHANNELS[@]} -gt $MAXCHANNELS ] && break # Nur $MAXCHANNELS einlesen
   CHANNEL=${CHANNEL[@]//:/ }; TMP=( ${CHANNEL} ) # In Array kopieren
   TRANSPONDER=${TMP[1]}-${TMP[2]}-${TMP[3]}     # Frequenz-Parameter-Quelle
   unset FOUND
   for i in "${TRANSPONDERLISTE[@]}"; do        # Transponser in der Liste suchen
       if [ "${i}" = "${TRANSPONDER}" ]; then
          FOUND=1                                # Transponder schon vorhanden
          break
       fi
   done
   if [ -z "${FOUND}" ] || [ -z "${TRANSPONDERLISTE}" ]; then
      echo -n "Neuer Transponder:" ${TRANSPONDER}
      TRANSPONDERLISTE=( "${TRANSPONDERLISTE[@]}" "${TRANSPONDER}" )
      # name frequenz parameter quelle symbolrate vpid apid tpid caid sid nid tid rid
      # SVDRP-Kanal-ID (S19.2E-133-14-123)
      SVDRPCHANNELS=( "${SVDRPCHANNELS[@]}" ${TMP[3]}-${TMP[10]}-${TMP[11]}-${TMP[9]} )
      echo " -> SVDRP:" ${TMP[3]}-${TMP[10]}-${TMP[11]}-${TMP[9]} "(${TMP[0]})"
   fi
   [ ${#CHANNELS[@]} -gt $(( $MAXCHANNELS -1 )) ] && break # Nur $MAXCHANNELS einlesen
done < ${CHANNELSCONF}

# Statistik
echo "-> ${#CHANNELS[@]} Kanäle eingelesen. (${CHANNELSCONF})"
echo "-> ${#TRANSPONDERLISTE[@]} Transponder:" ${TRANSPONDERLISTE[@]}
echo "-> ${#SVDRPCHANNELS[@]} SVDRP-Kanäle:" ${SVDRPCHANNELS[@]}

# Aktuellen Kanal speichern
AKTCHANNEL=( $(svdrpsend chan | grep 250) ) # Array (Kanalnummer in [1])

# Kanäle durchzappen
for i in "${SVDRPCHANNELS[@]}"; do
   echo "-> Schalte auf Kanal-ID:" $i
   $SVDRPSEND CHAN $i
   sleep $ZAPDELAY
done

# Auf zwischengewspeicherten Kanal zurückschalten
if [ -n "${AKTCHANNEL[1]}" ]; then
  echo "-> Schalte auf ursprünglichen Kanal:" ${AKTCHANNEL[1]}
  $SVDRPSEND CHAN ${AKTCHANNEL[1]}
else # Kanal konnte nicht gesichert werden
  echo "-> Schalte auf Backup-Kanal:" ${BACKUPCHANNEL}
  $SVDRPSEND CHAN ${BACKUPCHANNEL}
fi

exit ##ri

# die SAT-Karte fuer satip abschalten
sleep $ZAPDELAY
$SVDRPSEND  chan 1
sleep 2
$SVDRPSEND  hitk menu
$SVDRPSEND  hitk 5
sleep 3
$SVDRPSEND  plug suspendoutput susp

exit

channel_scan_loop() {                        # scan a group of channels
GROUP=$1
CHNR=$2
LAST_CHANNEL=$3

TIMEOUT_S=$(( $SCAN_TIME_S * 3 ))                                        # after this time wget will abort if no connection
log "scan group $GROUP: channel $CHNR to $LAST_CHANNEL" -d
msg "Gruppe $GROUP: Kanal $CHNR - $LAST_CHANNEL" 2
    while [ $CHNR -le $LAST_CHANNEL ]
    do
        CH_COUNTER=$(( $CH_COUNTER + 1 ))
        msg "Kanal $CHNR" 3
        if [ $VERBOSE_LOG -gt 1 ]; then log "counter=$CH_COUNTER, scan group $GROUP channel $CHNR" -d; fi
        if [ $SCAN_MODE -gt 0 ]; then                            # scanning in background with the straeming server
            
            if [ $DISPL_LOG -gt 1 ]; then                                                # testing at console

                wget -T$TIMEOUT_S -O /dev/null http://$STREAMHOST:3000/PES/$CHNR 2>&1 &        # verbose on console output
                WPID=$!
                RET=$?
            else
                wget -q -T$TIMEOUT_S -O /dev/null http://$STREAMHOST:3000/PES/$CHNR 2>&1 &        # quiet
                WPID=$!
                RET=$?
            fi
            sleep $SCAN_TIME_S
            if [ $VERBOSE_LOG -gt 2 ]; then log "wget returned=$RET PID=$WPID" -d; fi
            kill $WPID
            RET=$?
            if [ $VERBOSE_LOG -gt 2 ]; then log "kill returned=$RET PID=$WPID" -d; fi
        else                                                        # scanning in front by switching vdr
            $COMMAND CHAN $CHNR > /dev/null 2>&1
            sleep $SCAN_TIME_S
            if [ $VERBOSE_LOG -gt 1 ]; then log "scan channel $CHNR done" -d; fi
        fi
        if [ ! -e $FLG_FILE ]; then
            LAST_SCANNED_CHANNEL=$CHNR
            log "scan loop aborted (flag file missing) in group $GROUP after channel $CHNR "
            msg "wurde abgebrochen" 
            return 1
        fi
        CHNR=$(($CHNR + 1))

    done
    LAST_SCANNED_CHANNEL=$(($CHNR - 1))
    return 0
    }