charts refactor, libs refactor

pages/_plugins/jekyll-capture.rb

@@ -1,38 +1,54 @@
 module Jekyll
-
   module Tags
-
     class CaptureGlobal < Liquid::Block
-
       def initialize(tag_name, text, tokens)
         super
         @text = text.strip
       end
 
       def render(context)
-        if $capture_global[@text] === nil
-          $capture_global[@text] = '';
+        if $captured_global[@text] === nil
+          $captured_global[@text] = '';
         end
 
-        $capture_global[@text] += super.strip + "\n\n"
+        $captured_global[@text] += super.strip + "\n\n"
 
         ''
       end
+    end
 
+    class CaptureScripts < Liquid::Tag
+      def initialize(tag_name, text, tokens)
+        super
+        @text = text.strip
+      end
+
+      def render(context)
+        unless $captured_libs.include? @text
+          $captured_libs.push(@text)
+        end
+
+        ''
+      end
     end
   end
 
   Jekyll::Hooks.register :site, :after_init do |page, jekyll|
-    $capture_global = {}
+    $captured_global = {}
+    $captured_libs = []
   end
 
   Jekyll::Hooks.register :pages, :pre_render do |page, jekyll|
-    jekyll.site['capture_global'] = $capture_global
+    jekyll.site['captured_global'] = $captured_global
+    jekyll.site['captured_libs'] = $captured_libs
   end
 
   Jekyll::Hooks.register :pages, :post_render do |page, jekyll|
-    $capture_global = {}
+    $captured_global = {}
+    $captured_libs = []
   end
 end
 
 Liquid::Template.register_tag('capture_global', Jekyll::Tags::CaptureGlobal)
+Liquid::Template.register_tag('append_lib', Jekyll::Tags::CaptureScripts)
+