Attempt address #466 and avoid Bundler issues with RVM

middleman-core/bin/middleman

@@ -22,6 +22,8 @@ if !ENV["MM_ROOT"] && found_path = locate_root
   ENV["MM_ROOT"] = found_path
 end
 
+is_bundler_setup = false
+
 # If we've found the root, try to setup Bundler
 if ENV["MM_ROOT"]
   
@@ -33,12 +35,20 @@ if ENV["MM_ROOT"]
     ENV['BUNDLE_GEMFILE'] = git_gemfile.to_s
   end
   
-  require 'bundler/setup' if File.exists?(ENV['BUNDLE_GEMFILE'])
+  if File.exists?(ENV['BUNDLE_GEMFILE'])
+    is_bundler_setup = true
+    require 'bundler/setup'
+  end
 end
 
 # Automatically discover extensions in RubyGems
 require "middleman-core/extensions"
-::Middleman.load_extensions_in_path
+
+if is_bundler_setup
+  Bundler.require
+else
+  ::Middleman.load_extensions_in_path
+end
 
 require "middleman-core/cli"
 

middleman-core/lib/middleman-core/extensions.rb

@@ -58,23 +58,19 @@ module Middleman
     #
     # @private
     def load_extensions_in_path
-      if defined?(Bundler)
-        Bundler.require
-      else
-        require "rubygems"
-        
-        begin
-          require "middleman-more"
-        rescue LoadError
-        end
-        
-        extensions = rubygems_latest_specs.select do |spec|
-          spec_has_file?(spec, EXTENSION_FILE)
-        end
-        
-        extensions.each do |spec|
-          require spec.name
-        end
+      require "rubygems"
+      
+      begin
+        require "middleman-more"
+      rescue LoadError
+      end
+      
+      extensions = rubygems_latest_specs.select do |spec|
+        spec_has_file?(spec, EXTENSION_FILE)
+      end
+      
+      extensions.each do |spec|
+        require spec.name
       end
     end