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using screen instead of lftp background jobs

#146
rootzoll 6 years ago
parent
commit
963f39d6ed
  1. 180
      home.admin/50torrentHDD.sh

180
home.admin/50torrentHDD.sh

@ -3,71 +3,171 @@ echo ""
# *** BITCOIN Torrent ***
bitcoinTorrent="raspiblitz-bitcoin-2018-07-16"
bitcoinTorrentsize=231230512
# *** LITECOIN Torrent ***
litecoinTorrent="raspiblitz-litecoin-2018-07-29"
litecoinTorrentsize=10240000
# load network
network=`cat .network`
targetDir="/mnt/hdd/torrent/"
# settings based on network
torrent=$bitcoinTorrent
size=$bitcoinTorrentsize
if [ "$network" = "litecoin" ]; then
torrent=$litecoinTorrent
size=$litecoinTorrentsize
fi
sudo apt-get install lftp -y
echo ""
# screen background monitoring settings
name="Torrent"
targetDir="/mnt/hdd/torrent/"
targetSize=$size
maxTimeoutLoops=100000
command="sudo lftp -c 'torrent -O ${targetDir} /home/admin/assets/${torrent}.torrent; bye'"
# check if lftp is running in background
pid=$(pgrep lftp | head -n 1)
echo "${pid}"
if [ ${#pid} -eq 0 ]; then
echo "Starting lftp"
# starting session if needed
echo "checking if ${name} has a running screen session"
screen -wipe 1>/dev/null
isRunning=$( screen -S ${name} -ls | grep "${name}" -c )
echo "isRunning(${isRunning})"
if [ ${isRunning} -eq 0 ]; then
echo "Starting screen session"
sudo mkdir ${targetDir} 2>/dev/null
sudo lftp -c "torrent -O ${targetDir} /home/admin/assets/${torrent}.torrent; bye"
screen -S ${name} -dm ${command}
else
echo "Reattaching lftp (${pid})"
sudo lftp -c "attach ${pid}"
echo "Continue screen session"
fi
sleep 3
# monitor session
screenDump="... started ..."
actualSize=0
timeout=1
timeoutInfo="-"
while :
do
# check if session is still running
screen -wipe 1>/dev/null
isRunning=$( screen -S ${name} -ls | grep "${name}" -c )
if [ ${isRunning} -eq 0 ]; then
timeout=0
echo "OK - session finished"
break
fi
# calculate progress and write it to file for LCD to read
freshSize=$( du -s ${targetDir} | head -n1 | awk '{print $1;}' )
if [ ${#actualSize} -eq 0 ]; then
freshSize=0
fi
progress=$(echo "scale=2; $freshSize*100/$targetSize" | bc)
echo $progress > '.${name}.progress'
# detect if since last loop any progress occured
if [ ${actualSize} -eq ${freshSize} ]; then
timeoutInfo="${timeout}/${maxTimeoutLoops}"
timeout=$(( $timeout + 1 ))
else
timeout=1
timeoutInfo="no timeout detected"
fi
actualSize=$freshSize
# detect if mx timeout loop limit is reached
if [ ${timeout} -gt ${maxTimeoutLoops} ]; then
echo "FAIL - download hit timeout"
break
fi
# display info screen
clear
echo "****************************************************"
echo "Monitoring Screen Session: ${name}"
echo "Progress: ${progress}% (${actualSize} of ${targetSize})"
echo "Timeout: ${timeoutInfo}"
echo "If needed press key x to stop ${name}"
echo "NOTICE: This can take multiple hours or days !!"
echo "Its OK to close terminal now and SSH back in later."
echo "****************************************************"
screen -S ${name} -X hardcopy .${name}.out
newScreenDump=$(cat .Download.out | grep . | tail -8)
if [ ${#newScreenDump} -gt 0 ]; then
screenDump=$newScreenDump
fi
echo "$screenDump"
exit 1
# wait 2 seconds for key input
read -n 1 -t 2 keyPressed
# TODO check success by size
# check if user wants to abort session
if [ "${keyPressed}" = "x" ]; then
echo ""
echo "Aborting ${name}"
break
fi
# the path the actual data will be in
#targetPath="${targetDir}${torrent}"
#echo "path to downloaded data is ${targetPath}"
done
# clean up
rm -f .${name}.out
rm -f .${name}.progress
# quit session if still running
if [ ${isRunning} -eq 1 ]; then
# get the PID of screen session
sessionPID=$(screen -ls | grep "${name}" | cut -d "." -f1 | xargs)
echo "killing screen session PID(${sessionPID})"
# kill all child processes of screen sceesion
pkill -P ${sessionPID}
echo "proccesses klilled"
sleep 3
# tell the screen session to quit and wait a bit
screen -S ${name} -X quit 1>/dev/null
sleep 3
echo "cleaning screen"
screen -wipe 1>/dev/null
sleep 3
fi
# the path torrent will download to
targetPath="${targetDir}${torrent}"
echo "path to downloaded data is ${targetPath}"
# calculate progress and write it to file for LCD to read
#finalSize=$( du -s ${targetDir} 2>/dev/null | head -n1 | awk '{print $1;}' )
#if [ ${#finalSize} -eq 0 ]; then
# finalSize=0
#fi
#echo "final size is ${finalSize} of targeted size ${targetSize}"
finalSize=$( du -s ${targetDir} 2>/dev/null | head -n1 | awk '{print $1;}' )
if [ ${#finalSize} -eq 0 ]; then
finalSize=0
fi
echo "final size is ${finalSize} of targeted size ${targetSize}"
echo "PRESS KEY TO CONTINUE"
read key
# check result
#if [ ${finalSize} -lt ${targetSize} ]; then
if [ ${finalSize} -lt ${targetSize} ]; then
# Download failed
# sleep 3
# echo -ne '\007'
# dialog --title " WARNING " --yesno "The download failed or is not complete. Maybe try again (later). Do you want keep already downloaded data for next try?" 8 57
# response=$?
# case $response in
# 1) sudo rm -rf ${targetDir} ;;
# esac
# ./00mainMenu.sh
# exit 1;
#
#else
# # Download worked
# echo "*** Moving Files ***"
# sudo mv ${targetDir}${targetPath} /mnt/hdd/${network}
# echo "OK"
sleep 3
echo -ne '\007'
dialog --title " WARNING " --yesno "The download failed or is not complete. Maybe try again (later). Do you want keep already downloaded data for next try?" 8 57
response=$?
case $response in
1) sudo rm -rf ${targetDir} ;;
esac
./00mainMenu.sh
exit 1;
else
# Download worked
echo "*** Moving Files ***"
sudo mv ${targetPath} /mnt/hdd/${network}
echo "OK"
# continue setup
# ./60finishHDD.sh
./60finishHDD.sh
fi
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