New esx_version fact based on bios informations

Author: ctrlaltdel

lib/facter/esx_version.rb

@@ -0,0 +1,38 @@
+require 'facter'
+
+# Author: Francois Deppierraz <francois.deppierraz@nimag.net>
+# Idea and address/version mapping comes from
+# http://virtwo.blogspot.ch/2010/10/which-esx-version-am-i-running-on.html
+
+Facter.add(:esx_version) do
+  confine :virtual => :vmware
+  setcode do
+    if File::executable?("/usr/sbin/dmidecode")
+      result = Facter::Util::Resolution.exec("/usr/sbin/dmidecode 2>&1")
+      if result
+        bios_address = /^BIOS Information$.+?Address: (0x[0-9A-F]{5})$/m.match(result)[1]
+
+        case bios_address
+          when '0xE8480'
+            '2.5'
+          when '0xE7C70'
+            '3.0'
+          when '0xE7910'
+            '3.5'
+          when '0xEA6C0'
+            '4'
+          when '0xEA550'
+            '4 update 1'
+          when '0xEA2E0'
+            '4.1'
+          when '0xE72C0'
+            '5'
+          when '0xEA0C0'
+            '5.1'
+          else
+            "unknown, please report #{bios_address}"
+        end
+      end
+    end
+  end
+end