diff --git a/environment.conf b/environment.conf
index 5ba929b..4dd0b85 100644
--- a/environment.conf
+++ b/environment.conf
@@ -1,2 +1,2 @@
 modulepath          = modules:site:$basemodulepath
-config_version      = 'scripts/config_version.sh $environmentpath $environment'
+config_version      = 'scripts/config_version.rb $environmentpath $environment'
diff --git a/scripts/code_manager_config_version.rb b/scripts/code_manager_config_version.rb
deleted file mode 100755
index 2c9cb62..0000000
--- a/scripts/code_manager_config_version.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/env ruby
-require 'json'
-
-environmentpath = ARGV[0]
-environment     = ARGV[1]
-
-r10k_deploy_file_path = File.join(environmentpath, environment, '.r10k-deploy.json')
-
-#output the sha1 from the control-repo
-puts JSON.parse(File.read(r10k_deploy_file_path))['signature']
diff --git a/scripts/config_version.rb b/scripts/config_version.rb
index 3016a27..2142647 100755
--- a/scripts/config_version.rb
+++ b/scripts/config_version.rb
@@ -1,24 +1,49 @@
-#!/usr/bin/env ruby
-begin
-  require 'rugged'
-rescue LoadError => e
-  t = Time.new
-  puts t.to_i
+#!/opt/puppetlabs/puppet/bin/ruby
+
+require 'json'
+
+param_environment_path = ARGV[0]
+param_environment      = ARGV[1]
+
+if (param_environment_path && param_environment)
+  # Use the parameters, if passed.
+  environment_path = File.join(param_environment_path, param_environment)
 else
-
-  environmentpath = ARGV[0]
-  environment     = ARGV[1]
-
-  repo = Rugged::Repository.discover(File.join(environmentpath, environment))
-  head  = repo.head
-
-  #sha1 hash of the newest commit
-  head_sha = head.target_id
-
-  #the commit message associated the newest commit
-  commit = repo.lookup(head_sha)
-
-  #add something to find the remote url
-
-  puts head_sha 
+  # Or use the parent directory.
+  environment_path = File.dirname(File.expand_path(File.dirname(__FILE__)))
 end
+
+environment_r10k_deploy_file = File.join(environment_path, '.r10k-deploy.json')
+environment_dot_git = File.join(environment_path, '.git')
+pe_version_file = '/opt/puppetlabs/server/pe_version'
+environment_version = nil
+
+if (File.file?(environment_r10k_deploy_file))
+  # Use the r10k deploy file, if using Code Manager.
+  environment_version = JSON.parse(File.read(environment_r10k_deploy_file))['signature']
+
+elsif (File.file?(pe_version_file))
+  # Or use rugged, if using Puppet Enterprise.
+  begin
+    require 'rugged'
+  rescue LoadError => e
+    # It's okay.
+  else
+    environment_version = Rugged::Repository.discover(environment_path).head.target_id
+  end
+
+elsif (File.exist?(environment_dot_git))
+  # Or use git, just use git.
+  if (File.file?(environment_dot_git))
+    # It's a file, created via --separate-git-dir.
+    git_dir = File.read(environment_dot_git).split(': ')[1]
+  else
+    git_dir = environment_dot_git
+  end
+  git_rev_parse_head = %x( /usr/bin/git --git-dir #{git_dir} rev-parse HEAD 2>/dev/null )
+  environment_version = git_rev_parse_head if ($?.exitstatus == 0)
+
+end
+
+# Return the version, if found, or the current timestamp.
+puts (environment_version || Time.now.to_i)
diff --git a/scripts/config_version.sh b/scripts/config_version.sh
deleted file mode 100755
index bc77213..0000000
--- a/scripts/config_version.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/bash
-if [ -e $1/$2/.r10k-deploy.json ]
-then
-  /opt/puppetlabs/puppet/bin/ruby $1/$2/scripts/code_manager_config_version.rb $1 $2
-elif [ -e /opt/puppetlabs/server/pe_version ]
-then 
-  /opt/puppetlabs/puppet/bin/ruby $1/$2/scripts/config_version.rb $1 $2  
-else
-  /usr/bin/git --version > /dev/null 2>&1 &&
-  /usr/bin/git --git-dir $1/$2/.git rev-parse HEAD ||
-  date +%s
-fi