From b50e8c68f94ef53ffde9f590a35b2cf6a549cb3d Mon Sep 17 00:00:00 2001
From: Henric Andersson <github@sensenet.nu>
Date: Sat, 25 Jun 2016 04:01:17 -0700
Subject: [PATCH] Now detects 32/64 bit systems and can list BUILD/DISTRO

Automatically detects 32 or 64 bit systems and the new
-l option will allow you to easily see what options you
have when defining BUILD and DISTRO.

Also improved error messages.
---
 README.md     |  2 +-
 plexupdate.sh | 37 ++++++++++++++++++++++++++++++++-----
 2 files changed, 33 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index ba7f54f..dc69fc6 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ There are a few other options for the more enterprising user. Setting any of the
   The commandline used to install packages, only change if you need special options. Natively supports Debian and Redhat, so need to set this for these systems.
   NOTE! If you define this, you MUST define DISTRO and BUILD
 - DISTRO and BUILD
-  Override which version to download
+  Override which version to download, use -l option to see what you can select.
 
 Most of these options can be specified on the command-line as well, this is just a more convenient way of doing it if you're scripting it. Which brings us to...
 
diff --git a/plexupdate.sh b/plexupdate.sh
index 33b5084..17a8819 100755
--- a/plexupdate.sh
+++ b/plexupdate.sh
@@ -58,6 +58,7 @@ AUTOSTART=no
 CRON=no
 QUIET=no
 SILENT=no
+ARCH=$(uname -m)
 
 # Default options for package managers, override if needed
 REDHAT_INSTALL="yum -y install"
@@ -95,6 +96,7 @@ usage() {
         echo "       already exists (WILL NOT OVERWRITE)"
         echo "    -h This help"
         echo "    -k Reuse last authentication"
+        echo "    -l List available builds and distros"
         echo "    -p Public Plex Media Server version"
         echo "    -q Quiet mode. No stdout, only stderr and exit codes"
         echo "    -r Print download URL and exit"
@@ -118,6 +120,7 @@ do
                 (-d) AUTODELETE=yes;;
                 (-f) FORCE=yes;;
                 (-k) KEEP=yes;;
+                (-l) LISTOPTS=yes;;
                 (-p) PUBLIC=yes;;
                 (-q) QUIET=yes;;
                 (-r) PRINT_URL=yes;;
@@ -202,19 +205,22 @@ if [ -z "${DOWNLOADDIR}" ]; then
 fi
 
 if [ "${DISTRO_INSTALL}" == "" ]; then
-	# Detect if we're running on redhat instead of ubuntu
-	if [ "${DISTRO}" == "" -o "${BUILD}" == "" ]; then
+	if [ "${DISTRO}" == "" -a "${BUILD}" == "" ]; then
+		# Detect if we're running on redhat instead of ubuntu
 		if [ -f /etc/redhat-release ]; then
 			REDHAT=yes
-			BUILD='linux-ubuntu-x86_64'
+			BUILD="linux-ubuntu-${ARCH}"
 			DISTRO="redhat"
 			DISTRO_INSTALL="${REDHAT_INSTALL}"
 		else
 			REDHAT=no
-			BUILD='linux-ubuntu-x86_64'
+			BUILD="linux-ubuntu-${ARCH}"
 			DISTRO="ubuntu"
 			DISTRO_INSTALL="${DEBIAN_INSTALL}"
 		fi
+	elif [ "${DISTRO}" == "" -o "${BUILD}" == "" ]; then
+		echo "ERROR: You must define both DISTRO and BUILD"
+		exit 255
 	fi
 else
 	if [ "${DISTRO}" == "" -o "${BUILD}" == "" ]; then
@@ -304,6 +310,27 @@ elif [ "$PUBLIC" != "no" ]; then
 	URL_DOWNLOAD=${URL_DOWNLOAD_PUBLIC}
 fi
 
+if [ "${LISTOPTS}" == "yes" ]; then
+	opts="$(wget --load-cookies /tmp/kaka --save-cookies /tmp/kaka --keep-session-cookies "${URL_DOWNLOAD}" -O - 2>/dev/null | grep -oe '"label"[^}]*' | grep -v Download | sed 's/"label":"\([^"]*\)","build":"\([^"]*\)","distro":"\([^"]*\)".*/"\3" "\2" "\1"/' | uniq | sort)"
+	eval opts=( "DISTRO" "BUILD" "DESCRIPTION" "======" "=====" "==============================================" $opts )
+
+	BUILD=
+	DISTRO=
+
+	for X in "${opts[@]}" ; do
+		if [ "$DISTRO" == "" ]; then
+			DISTRO="$X"
+		elif [ "$BUILD" == "" ]; then
+			BUILD="$X"
+		else
+			printf "%-12s %-30s %s\n" "$DISTRO" "$BUILD" "$X"
+			BUILD=
+			DISTRO=
+		fi
+	done
+	exit 0
+fi
+
 # Extract the URL for our release
 if [ "${CRON}" = "no" ]; then
         echo -n "Finding download URL to download..."
@@ -315,7 +342,7 @@ if [ "${CRON}" = "no" ]; then
 fi
 
 if [ "${DOWNLOAD}" == "" ]; then
-	echo "Sorry, page layout must have changed, I'm unable to retrieve the URL needed for download"
+	echo "ERROR: Unable to retrieve the URL needed for download (Query DISTRO: $DISTRO, BUILD: $BUILD)"
 	exit 3
 fi