From 010e8aa9b33613cae3622a1f4c0ade6a464a7562 Mon Sep 17 00:00:00 2001
From: Nick O'Leary <nick.oleary@gmail.com>
Date: Wed, 26 Sep 2018 16:06:16 +0100
Subject: [PATCH] Fixup sensehat to not use sudo if not needed

---
 hardware/sensehat/package.json |  2 +-
 hardware/sensehat/sensehat     | 12 +++++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/hardware/sensehat/package.json b/hardware/sensehat/package.json
index bfaf6e02..d893dfa8 100644
--- a/hardware/sensehat/package.json
+++ b/hardware/sensehat/package.json
@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-pi-sense-hat",
-    "version"       : "0.0.17",
+    "version"       : "0.0.18",
     "description"   : "A Node-RED node to interact with a Raspberry Pi Sense HAT",
     "repository" : {
         "type":"git",
diff --git a/hardware/sensehat/sensehat b/hardware/sensehat/sensehat
index 31f4be4d..9674d293 100755
--- a/hardware/sensehat/sensehat
+++ b/hardware/sensehat/sensehat
@@ -1,4 +1,14 @@
 #!/bin/bash
 
 BASEDIR=$(dirname $0)
-sudo python -u $BASEDIR/sensehat.py $@
+
+ID=$(id -u)
+
+# Avoid using sudo if we're already root
+SUDO=sudo
+if [ $ID -eq 0 ]
+then
+   SUDO=""
+fi
+
+$SUDO python -u $BASEDIR/sensehat.py $@