Rdoc only displays if there is an RDOC directory and the has_rdoc? ge…

…m spec option is checked. Closes quirkey#4

Also, gems now reload if the mtime of your gems directory changes

lib/gembox/app.rb

@@ -27,16 +27,14 @@ class App < ::Sinatra::Default
     end
 
     get %r{/gems/doc/([\w\-\_]+)/?([\d\.]+)?/?(.*)?} do
+      load_gem_by_version
+      @rdoc_path = @gem.rdoc_path
       if params[:captures].length == 3 && !params[:captures][2].blank? 
         # we have a path
-        load_gem_by_version
-        @rdoc_path = File.join(@gem.installation_path, "doc", @gem.full_name, 'rdoc')
         full_path = File.join(@rdoc_path, params[:captures].pop)
         content_type File.extname(full_path)
         File.read(full_path)
       else
-        load_gem_by_version
-        @rdoc_path = File.join(@gem.installation_path, "doc", @gem.full_name, 'rdoc')        
         haml :doc, :layout => false
       end
     end

lib/gembox/extensions.rb

@@ -17,5 +17,14 @@ def files_tree
     def on_github?
       homepage =~ /github\.com\/([\w\d\-\_]+)\/([\w\d\-\_]+)\/tree/
     end
+
+    alias :has_rdoc_checked? :has_rdoc?
+    def has_rdoc?
+      has_rdoc_checked? && File.exists?(rdoc_path)
+    end
+
+    def rdoc_path
+      File.join(installation_path, 'doc', full_name, 'rdoc')
+    end
   end
 end

lib/gembox/gems.rb

@@ -4,12 +4,17 @@ class << self
       attr_accessor :source_index
 
       def load
-        @source_index ||= ::Gem.source_index
+        if !@source_index || reload?
+          @source_index = ::Gem.source_index
+        end
         local_gems
       end
 
       def local_gems
-        @local_gems ||= group_gems(source_index.gems)
+        if !@local_gems || reload?
+          @local_gems = group_gems(source_index.gems)
+        end
+        @local_gems
       end
 
       def search(search_term, version = nil, strict = false)
@@ -38,6 +43,16 @@ def group_gems(gem_collection)
         end
         gem_hash.sort {|a, b| a[0].downcase <=> b[0].downcase } 
       end
+
+      def reload?
+        @now_mtime = File.mtime(File.join(::Gem.dir, 'gems'))
+        if @old_mtime != @now_mtime
+          @old_mtime = @now_mtime
+          true
+        else
+          false
+        end
+      end
     end
 
   end