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direwolf
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Added additional tests, path validation, etc. Improved documentation in script comments.

This commit is contained in:
Juan Chong 2019-05-31 00:10:56 -04:00
parent 8248565c68
commit 8e38a2328e
1 changed files with 49 additions and 3 deletions
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52
dw-start-cli.sh
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@ -5,9 +5,23 @@
# Run this from crontab periodically to check whether direwolf is running
# and force it to start up automatically.
# In order to execute this script periodically using crontab, do the following:
# 1.- Configure the script to your liking and save changes.
# 2.- Type "crontab -e" without quotes in the terminal
# 2a.- If this is your first time editing crontab, select your preferred text editor. My favorite is nano.
# 3.- Add the line below to the crontab file. This will force the script to run every minute.
#
# * * * * * /absolute/path/to/this/file/dw-start-cli.sh >/dev/null 2>&1
#
# 4.- Save and close the crontab file.
# 5.- Optional: Use top to check whether direwolf was started. I highly recommend
# testing this script by manually executing it before adding it to the crontab.
# Execute the script manually by typing: ./dw-start-cli.sh
# Versioning (this file, not direwolf version)
#-----------
# v1.4 - KE5WSG - removed support for the GUI and vastly simplified the script
# v1.4 - KE5WSG - Removed support for the GUI and vastly simplified the script.
# Improved error checking and logging.
# 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
@ -15,6 +29,7 @@
# v1.0 - WB2OSZ - original version for Xwindow displays only
# Enable (true) / disable (false) logging everything to the log file.
# Setting this to 'false' is recommended to keep from unnecessarily filling the log file.
DEBUG=false
#Where will be stored. The directory must be writable by non-root users.
@ -33,6 +48,10 @@ DWPATH="/home/pi/direwolf"
DWCONFIG="/home/pi/direwolf"
# Name of the direwolf configuration file.
DWCONFIGFILE="direwolf.conf"
# Direwolf start up command. Examples for both a simple and SDR config are provided.
#
# 1. For normal operation as TNC, digipeater, IGate, etc.
@ -40,7 +59,7 @@ DWCONFIG="/home/pi/direwolf"
# 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 $DWCONFIG/direwolf.conf"
DWCMD="$DWPATH/direwolf -a 100 -c $DWCONFIG/$DWCONFIGFILE"
#---------------------------------------------------------------
#
@ -56,6 +75,33 @@ export PATH=/usr/local/bin:$PATH
# Error checking before attempting to start direwolf
# Check to see whether the direwolf directory exists
if ! [ -d "$DWPATH" ]; then
echo -e "ERROR: The direwolf path (DWPATH) is invalid! Aborting."
echo "-----------------------" >> $LOGFILE
date >> $LOGFILE
echo "ERROR: The direwolf path (DWPATH) is invalid! Aborting." >> $LOGFILE
exit 1
fi
# Check to see whether the direwolf application exists
if ! [ -f "$DWPATH/direwolf" ]; then
echo -e "ERROR: The direwolf application (DWPATH/direwolf) cannot be found! Aborting."
echo "-----------------------" >> $LOGFILE
date >> $LOGFILE
echo "ERROR: The direwolf application (DWPATH/direwolf) cannot be found! Aborting." >> $LOGFILE
exit 1
fi
# Check to see whether the direwolf configuration file exists
if ! [ -f "$DWCONFIG/$DWCONFIGFILE" ]; then
echo -e "ERROR: The direwolf configuration file specified cannot be found! Aborting."
echo "-----------------------" >> $LOGFILE
date >> $LOGFILE
echo "ERROR: The direwolf configuration file specified cannot be found! Aborting." >> $LOGFILE
exit 1
fi
# 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."
@ -76,7 +122,7 @@ if screen -list | grep -q "direwolf"; then
exit
fi
# It looks like we have everything we need to start direwolf, let's try!
# It looks like none of the errors forced the application to exit. Let's try running direwolf!
# Wait a little while in case we just rebooted and you're using an old RPi.
# Feel free to adjust this delay as needed.