Plugins can register providers for global settings

lib/plugin/instance.rb

@@ -363,27 +363,7 @@ JS
   #
   # This is a very rough initial implementation
   def gem(name, version, opts = {})
-    gems_path = File.dirname(path) + "/gems/#{RUBY_VERSION}"
-    spec_path = gems_path + "/specifications"
-    spec_file = spec_path + "/#{name}-#{version}.gemspec"
-    unless File.exists? spec_file
-      command = "gem install #{name} -v #{version} -i #{gems_path} --no-document --ignore-dependencies"
-      if opts[:source]
-        command << " --source #{opts[:source]}"
-      end
-      puts command
-      puts `#{command}`
-    end
-    if File.exists? spec_file
-      spec = Gem::Specification.load spec_file
-      spec.activate
-      unless opts[:require] == false
-        require opts[:require_name] ? opts[:require_name] : name
-      end
-    else
-      puts "You are specifying the gem #{name} in #{path}, however it does not exist!"
-      exit(-1)
-    end
+    PluginGem.load(path, name, version, opts)
   end
 
   def enabled_site_setting(setting=nil)