From 7e9cef860c30d14f603b8fb27850c20bfb7010ba Mon Sep 17 00:00:00 2001
From: darrin0101 <darrin0101@users.noreply.github.com>
Date: Fri, 14 Nov 2014 13:22:15 -0500
Subject: [PATCH] Added detection of currently installed version.

---
 plexupdate.sh | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/plexupdate.sh b/plexupdate.sh
index 60bb469..8eed1d7 100755
--- a/plexupdate.sh
+++ b/plexupdate.sh
@@ -217,7 +217,17 @@ if [ $? -ne 0 ]; then
 	exit 3
 fi
 
-SKIPDOWNLOAD="no"
+SKIP_DOWNLOAD="no"
+
+# Installed version detection (untested on Redhat)
+if [ "${REDHAT}" != "yes" ]; then
+	INSTALLED_VERSION=$(dpkg-query -s plexmediaserver 2>/dev/null | grep -Po 'Version: \K.*')
+	if [ $FILENAME == *$INSTALLED_VERSION* ] && [ "${FORCE}" != "yes" ]; then
+		echo "Your OS reports the latest version of Plex ($INSTALLED_VERSION) is already installed. Use -f to force download."
+		exit 0
+	fi
+fi
+
 if [ -f "${DOWNLOADDIR}/${FILENAME}" -a "${FORCE}" != "yes" ]; then
 	if [ "${AUTOINSTALL}" != "yes" ]; then 
 		echo "File already exists, won't download."