diff --git a/dw-start-cli.sh b/dw-start-cli.sh new file mode 100644 index 0000000..2b76e51 --- /dev/null +++ b/dw-start-cli.sh @@ -0,0 +1,100 @@ +#!/bin/bash + +# Simplified, CLI-only direwolf start-up script + +# Run this from crontab periodically to check whether direwolf is running +# and force it to start up automatically. + +# Versioning (this file, not direwolf version) +#----------- +# v1.4 - KE5WSG - removed support for the GUI and vastly simplified the script +# v1.3 - KI6ZHD - added variable support for direwolf binary location +# v1.2 - KI6ZHD - support different versions of VNC +# v1.1 - KI6ZHD - expanded version to support running on text-only displays with +# auto support; log placement change +# v1.0 - WB2OSZ - original version for Xwindow displays only + +# Enable (true) / disable (false) logging everything to the log file. +DEBUG=false + +#Where will be stored. The directory must be writable by non-root users. +LOGFILE=/var/tmp/dw-start.log + +# Location of the direwolf binary. Depends on $PATH as shown. +# Change this if you want to use some other specific location. +# e.g. DWPATH="/usr/local/bin/direwolf" + +DWPATH="/home/pi/direwolf" + +# Location of the direwolf configuration file (direwolf.conf). +# Change this if you want to customize or protect where your configuration +# file is stored. +# e.g. DWCONFIG="/home/pi/direwolf" + +DWCONFIG="/home/pi/direwolf" + +# Direwolf start up command. Examples for both a simple and SDR config are provided. +# +# 1. For normal operation as TNC, digipeater, IGate, etc. +# Print audio statistics each 100 seconds for troubleshooting. +# Change this command to however you wish to start Direwolf. +# Be sure to use variables as necessary when building your command. + +DWCMD="$DWPATH/direwolf -a 100 -c $DWCONFIG/direwolf.conf" + +#--------------------------------------------------------------- +# +# 2. Alternative for running with SDR receiver. +# Piping one application into another makes it a little more complicated. +# We need to use bash for the | to be recognized. + +#DWCMD="bash -c 'rtl_fm -f 144.39M - | $DWPATH/direwolf -c $DWCONFIG/sdr.conf -r 24000 -D 1 -'" + +# When running from cron, we have a very minimal environment +# including PATH=/usr/bin:/bin. +export PATH=/usr/local/bin:$PATH + +# Error checking before attempting to start direwolf + +# Check to see whether screen is installed +if ! type "screen" > /dev/null; then + echo -e "ERROR: screen is not installed. Please install using 'sudo apt-get install screen' Aborting." + echo "-----------------------" >> $LOGFILE + date >> $LOGFILE + echo "ERROR: screen is not installed." >> $LOGFILE + exit 1 +fi + +# Check to see if there's already a screen session named "direwolf" +if screen -list | grep -q "direwolf"; then + echo "A screen session named 'direwolf' is already running. Direwolf is likely already running. Exiting." + if $DEBUG; then + echo "-----------------------" >> $LOGFILE + date >> $LOGFILE + echo "A screen session named 'direwolf' was found. Exiting." >> $LOGFILE + fi + exit +fi + +# It looks like we have everything we need to start direwolf, let's try! + +# Wait a little while in case we just rebooted and you're using an old RPi. +# Feel free to adjust this delay as needed. +sleep 1 + +# Print status messages +echo "Direwolf starting up..." +echo "-----------------------" >> $LOGFILE +date >> $LOGFILE +echo "Direwolf starting up..." >> $LOGFILE + +# Start direwolf in a screen session named 'direwolf' +screen -S direwolf -d -m $DWCMD + +# Print direwolf screen information to the screen/log +screen -list direwolf +screen -list direwolf >> $LOGFILE + +echo "-----------------------" +echo "-----------------------" >> $LOGFILE +