From 929e15322d7b71abda3e4d3dcb81ff35c3a6e888 Mon Sep 17 00:00:00 2001
From: Zack T <MLBZ521@gmail.com>
Date: Thu, 27 Sep 2018 11:15:52 -0700
Subject: [PATCH] v1.5 = Updated for Full Mojave Support

 + Updated for Full Mojave Support
 + Adjusted the minimum RAM to the actual minimum
 + Modified the result returned for Sierra to include "OS Limitation"
---
 .../jamf_ea_LatestOSSupported.sh              | 61 ++++++++++++++++---
 1 file changed, 54 insertions(+), 7 deletions(-)

diff --git a/Jamf Pro/Extension Attributes/jamf_ea_LatestOSSupported.sh b/Jamf Pro/Extension Attributes/jamf_ea_LatestOSSupported.sh
index 1c8c026..8d14f6d 100644
--- a/Jamf Pro/Extension Attributes/jamf_ea_LatestOSSupported.sh	
+++ b/Jamf Pro/Extension Attributes/jamf_ea_LatestOSSupported.sh	
@@ -3,13 +3,14 @@
 ###################################################################################################
 # Script Name:  jamf_ea_LatestOSSupported.sh
 # By:  Zack Thompson / Created:  9/26/2017
-# Version:  1.4.1 / Updated:  8/6/2017 / By:  ZT
+# Version:  1.5 / Updated:  9/26/2018 / By:  ZT
 #
 # Description:  A Jamf Extension Attribute to check the latest compatible version of macOS.
 #
 #	System Requirements can be found here:  
-#		Mojave - (https://developer.apple.com/)
-#		High Sierra - https://support.apple.com/en-us/HT201475
+#		Mojave - https://support.apple.com/en-us/HT201475
+#			* MacPro5,1's = https://support.apple.com/en-us/HT208898
+#		High Sierra - https://support.apple.com/en-us/HT208969
 #		Sierra - https://support.apple.com/kb/sp742
 #		El Capitan - https://support.apple.com/kb/sp728
 #
@@ -19,7 +20,7 @@
 # Define Variables
 
 # Setting the minimum RAM and free disk space required for compatibility (opting for 4GB instead of 2GB)
-	minimumRAM=4
+	minimumRAM=2
 	minimumFreeSpace=20
 # Transform GB into Bytes
 	convertToGigabytes=$((1024 * 1024 * 1024))
@@ -35,7 +36,7 @@ modelCheck() {
 	elif [[ $modelMajorVersion -ge $2 && $(/usr/bin/bc <<< "${osVersion} >= 8") -eq 1 ]]; then
 		echo "<result>High Sierra</result>"
 	elif [[ $modelMajorVersion -ge $2 && $(/usr/bin/bc <<< "${osVersion} >= 7.5") -eq 1 ]]; then
-		echo "<result>Sierra</result>"  # (Current OS Limitation, 10.13 Compatible)
+		echo "<result>Sierra / OS Limitation</result>"  # (Current OS Limitation, 10.13 Compatible)
 	elif [[ $modelMajorVersion -ge $3 && $(/usr/bin/bc <<< "${osVersion} >= 6.8") -eq 1  ]]; then
 		echo "<result>El Capitan</result>"
 	else
@@ -43,6 +44,52 @@ modelCheck() {
 	fi
 }
 
+# Because Apple had to make Mojave support for MacPro's difficult...  I have to add complexity to my simplistic logic in this script.
+macProModelCheck() {
+	# Check if the Graphics Card supports Metal
+		supportsMetal=$(/usr/sbin/system_profiler SPDisplaysDataType | /usr/bin/awk -F 'Metal: ' '{print $2}' | /usr/bin/xargs)
+	# Check if FileVault is enabled
+		fvStatus=$(/usr/bin/fdesetup status | /usr/bin/awk -F 'FileVault is ' '{print $2}' | /usr/bin/xargs)
+
+	macProResult="<result>"
+
+	if [[ $modelMajorVersion -ge $1 && $(/usr/bin/bc <<< "${osVersion} >= 13.6") -eq 1 ]]; then
+		# Function macProRequirements
+		macProRequirements 
+
+	elif [[ $modelMajorVersion -ge $1 && $(/usr/bin/bc <<< "${osVersion} <= 13.6") -eq 1 ]]; then		
+		macProResult+="High Sierra / OS Limitation,"
+
+		# Function macProRequirements
+		macProRequirements
+
+		macProResult=$(echo "${macProResult}" | /usr/bin/sed "s/,$//")
+		echo "${macProResult}</result>"
+
+	elif [[ $modelMajorVersion -ge $2 && $(/usr/bin/bc <<< "${osVersion} >= 7.5") -eq 1 ]]; then
+		echo "<result>Sierra / OS Limitation</result>"  # (Current OS Limitation, 10.13 Compatible)
+	elif [[ $modelMajorVersion -ge $3 && $(/usr/bin/bc <<< "${osVersion} >= 6.8") -eq 1  ]]; then
+		echo "<result>El Capitan</result>"
+	else
+		echo "<result>Model or Current OS Not Supported</result>"
+	fi
+}
+
+# Check the requirements for Mac Pros
+macProRequirements() {
+	if [[ $supportsMetal != "Supported" ]]; then
+		macProResult+="GFX unsupported,"
+	fi
+
+	if [[ $fvStatus != "Off." ]]; then
+		macProResult+="FV Enabled"
+	fi
+
+	if [[ $macProResult == "<result>" ]]; then
+		macProResult+="Mojave</result>"
+	fi
+}
+
 ##################################################
 # Get machine info
 
@@ -50,7 +97,7 @@ modelCheck() {
 	osVersion=$(/usr/bin/sw_vers -productVersion | /usr/bin/awk -F '.' '{print $2"."$3}')
 # Get the Model Type and Major Version
 	modelType=$(/usr/sbin/sysctl -n hw.model | /usr/bin/sed 's/[^a-zA-Z]//g')
-	modelMajorVersion=$(/usr/sbin/sysctl -n hw.model | /usr/bin/sed 's/[^0-9,]//g' | /usr/bin/awk -F, '{print $1}')
+	modelMajorVersion=$(/usr/sbin/sysctl -n hw.model | /usr/bin/sed 's/[^0-9,]//g' | /usr/bin/awk -F ',' '{print $1}')
 # Get RAM
 	systemRAM=$(/usr/sbin/sysctl -n hw.memsize)
 # Get free space on the boot disk
@@ -85,7 +132,7 @@ if [[ $systemRAM -ge $requiredRAM && $systemFreeSpace -ge $requiredFreeSpace ]];
 		;;
 		"MacPro" )
 			# Function modelCheck
-			modelCheck 5 5 3
+			macProModelCheck 5 5 3
 		;;
 		"iMacPro" )
 			# Function modelCheck