[#604] Port the macro_list to Liquid: variable_list and tag_list

lib/chili_project/liquid/tags.rb

@@ -27,7 +27,8 @@ module ChiliProject::Liquid
     # child_pages
     register_tag('hello_world', HelloWorld)
     # include
-    # macro_list
+    register_tag('tag_list', TagList, :html => true)
+    register_tag('variable_list', VariableList, :html => true)
   end
 end
 

lib/chili_project/liquid/tags/tag_list.rb

@@ -0,0 +1,14 @@
+module ChiliProject::Liquid::Tags
+  class TagList < Tag
+    include ActionView::Helpers::TagHelper
+
+    def render(context)
+      content_tag('p', "Tags:") +
+      content_tag('ul',
+        ::Liquid::Template.tags.keys.sort.collect {|tag_name|
+          content_tag('li', content_tag('code', h(tag_name)))
+        }.join('')
+      )
+    end
+  end
+end

lib/chili_project/liquid/tags/variable_list.rb

@@ -0,0 +1,15 @@
+module ChiliProject::Liquid::Tags
+  class VariableList < Tag
+    include ActionView::Helpers::TagHelper
+
+    def render(context)
+      out = ''
+      context.environments.first.keys.sort.each do |liquid_variable|
+        next if liquid_variable == 'text' # internal variable
+        out << content_tag('li', content_tag('code', h(liquid_variable)))
+      end if context.environments.present?
+
+      content_tag('p', "Variables:") + content_tag('ul', out)
+    end
+  end
+end

lib/chili_project/liquid/variables.rb

@@ -6,6 +6,7 @@ module ChiliProject
       # Variables are used in liquid like {{var}}
       def self.macro_backwards_compatibility
         {
+          'macro_list' => "Use the '{% variable_list %}' tag to see all Liquid variables and '{% tag_list %}' to see all of the Liquid tags."
         }
       end
     end

lib/redmine/wiki_formatting/macros.rb

@@ -68,16 +68,6 @@ module Redmine
       end
 
       # Builtin macros
-      desc "Displays a list of all available macros, including description if available."
-      macro :macro_list do
-        out = ''
-        @@available_macros.keys.collect(&:to_s).sort.each do |macro|
-          out << content_tag('dt', content_tag('code', macro))
-          out << content_tag('dd', textilizable(@@available_macros[macro.to_sym]))
-        end
-        content_tag('dl', out)
-      end
-
       desc "Displays a list of child pages. With no argument, it displays the child pages of the current wiki page. Examples:\n\n" +
              "  !{{child_pages}} -- can be used from a wiki page only\n" +
              "  !{{child_pages(Foo)}} -- lists all children of page Foo\n" +