switch to systemd emonhub.service

emonhubupdate

@@ -1,9 +1,55 @@
 #!/bin/bash
 echo
 echo "================================="
-echo "EmonPi update started"
+echo "emonHub update started"
 echo "================================="
 
+username="pi"
+homedir="/home/$username"
+
+service="emonhub"
+servicepath="$homedir/emonhub/service/emonhub.service"
+
+if [ -d /etc/systemd ] && [ -f $servicepath ]; then
+  if [ -f /etc/init.d/$service ]; then
+    echo "removing initd $service service"
+    sudo /etc/init.d/$service stop
+    sudo rm /etc/init.d/$service
+  fi
+
+  # service will be symlinked to /etc/systemd/system by "systemctl enable"
+  if [ -f /etc/systemd/system/$service.service ]; then
+    if ! [ -L /etc/systemd/system/$service.service ]; then
+      echo "Removing hard copy of $service.service from /etc/systemd/system (should be symlink)"
+      sudo systemctl stop $service.service
+      sudo systemctl disable $service.service
+      sudo rm /etc/systemd/system/$service.service
+      sudo systemctl daemon-reload
+    fi
+  fi
+
+  if [ -f /lib/systemd/system/$service.service ]; then
+    if ! [ -L /lib/systemd/system/$service.service ]; then
+      echo "Removing hard copy of $service.service in /lib/systemd/system (should be symlink)"
+      sudo systemctl stop $service.service
+      sudo systemctl disable $service.service
+      sudo rm /lib/systemd/system/$service.service
+      sudo systemctl daemon-reload
+    fi
+  fi
+
+  if [ ! -f /lib/systemd/system/$service.service ]; then
+    echo "Installing $service.service in /lib/systemd/system (creating symlink)"
+    sudo ln -s $servicepath /lib/systemd/system
+    sudo systemctl enable $service.service
+    sudo systemctl start $service.service
+  else 
+    echo "$service.service already installed"
+  fi
+fi
+
+echo
 echo "Running emonhub automatic node addition script"
 echo "EUID: $EUID"
-/home/pi/emonhub/conf/nodes/emonpi_auto_add_nodes.sh
+$homedir/emonhub/conf/nodes/emonpi_auto_add_nodes.sh
+