Update install.sh

install.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+if [ -f /etc/default/gpsd ] ; then # GPSD must be installed for this script/service to work
+  source /etc/default/gpsd
+else
+  echo "GPSD is missing. Please install and configure GPSD for use with your GPS before installing gpsUpdater."
+  echo "Installation Aborted!"
+  exit
+fi
+if [ -z $DEVICES ] ; then # A GPS device must be configured for this script/service to work
+  echo "Your GPS device has not been specifed in /etc/default/gpsd. Please edit, then retry installation."
+  echo "Installation Aborted!"
+  exit
+fi
+if [ -f /boot/adsb-config.txt ] ; then # This script checks to make sure the ADSBx config file is present,
+                                       # since it has only been tested with the ADSBx Buster image
+  if [ "$(command -v awk | wc -l)" -eq 0 ] ; then # Installing required packages if missing
+        apt install gawk -y
+  fi
+  if [ "$(command -v bc | wc -l)" -eq 0 ] ; then # Installing required packages if missing
+    apt install bc -y
+  fi
+  if [ "$(command -v gpspipe | wc -l)" -eq 0 ] ; then # Installing required packages if missing
+    apt install gpsd-clients -y
+  fi
+  if [ "$(command -v ts | wc -l)" -eq 0 ] ; then # Installing required packages if missing
+    apt install moreutils -y
+  fi
+
+  cp ./script/gpsUpdate.sh /usr/local/bin
+  cp ./systemd/gpsUpdate.service /lib/systemd/system
+
+  systemctl enable gpsUpdate
+  systemctl start gpsUpdate
+
+  echo "gpsUpdate service installed successfully"
+else
+  echo "The config file 'adsb-config.txt' is missing from /boot."
+  echo "Installation Aborted!"
+fi