inject yaml data into liquid templates. closes #111

CHANGELOG

@@ -3,8 +3,8 @@
 - Support accessing variables and data objects in ERb Sprockets files (library.js.coffee.erb)
 - Make :markdown_engine support simple symbol names (:maruku instead of ::Tilt::MarkukuTemplate)
 - Update Padrino deps to 0.10.2
-- Update EventMachine to pre for Windows users
 - Include therubyracer on *nix
+- Enable frontmatter for Liquid templates
 
 2.0.7
 =====

features/data.feature

@@ -4,4 +4,9 @@ Feature: Local Data API
   Scenario: Rendering html
     Given the Server is running at "test-app"
     When I go to "/data.html"
-    Then I should see "One:Two"
+    Then I should see "One:Two"
+  
+  Scenario: Rendering liquid
+    Given the Server is running at "test-app"
+    When I go to "/data2.html"
+    Then I should see "OneTwo"

fixtures/test-app/config.rb

@@ -19,6 +19,7 @@ with_layout false do
   page "/spaces in file.html"
   page "/slim.html"
   page "/data.html"
+  page "/data2.html"
   page "/page-classes.html"
   page "/sub1/page-classes.html"
   page "/sub1/sub2/page-classes.html"

fixtures/test-app/source/data2.html.liquid

@@ -0,0 +1 @@
+{% for item in data.test %}{{item.title}}{% endfor %}

lib/middleman/base.rb

@@ -172,7 +172,12 @@ module Middleman::Base
       render_options = { :layout => layout }
       render_options[:layout_engine] = options[:layout_engine] if options.has_key? :layout_engine
       request_path = request.path_info.gsub("%20", " ")
-      result = render(request_path, render_options)
+      path, engine = resolve_template(request_path)
+      
+      locals = {}
+      locals[:data] = data.to_h if engine == :liquid
+      
+      result = render(engine, path, render_options, locals)
       settings.set :layout, old_layout
 
       if result

lib/middleman/core_extensions/data.rb

@@ -22,7 +22,7 @@ module Middleman::CoreExtensions::Data
       @app = app
     end
     
-    def method_missing(path)
+    def data_for_path(path)
       response = nil
       
       @@local_sources ||= {}
@@ -38,11 +38,37 @@ module Middleman::CoreExtensions::Data
           response = YAML.load_file(file_path)
         end
       end
+    end
+    
+    def method_missing(path)
+      result = data_for_path(path)
       
-      if response
-        recursively_enhance(response)
+      if result
+        recursively_enhance(result)
+      else
+        super
       end
     end
+    
+    def to_h
+      data = {}
+      
+      (@@local_sources || {}).each do |k, v|
+        data[k] = data_for_path(k)
+      end
+      
+      (@@callback_sources || {}).each do |k, v|
+        data[k] = data_for_path(k)
+      end
+      
+      yaml_path = File.join(@app.root, @app.data_dir, "*.yml")
+      Dir[yaml_path].each do |f|
+        p = f.split("/").last.gsub(".yml", "")
+        data[p] = data_for_path(p)
+      end
+      
+      data
+    end
 
     def self.data_content(name, content)
       @@local_sources ||= {}

lib/middleman/core_extensions/front_matter.rb

@@ -80,7 +80,7 @@ module Middleman::CoreExtensions::FrontMatter
   
   module YamlAware
     def prepare
-      options, @data = Middleman::CoreExtensions::FrontMatter.parse_front_matter(@data)
+      @frontmatter, @data = Middleman::CoreExtensions::FrontMatter.parse_front_matter(@data)
       super
     end
   end

middleman.gemspec

@@ -38,7 +38,7 @@ Gem::Specification.new do |s|
 eos
 
   s.add_dependency("rack", ["~> 1.3.0"])
-  s.add_dependency("eventmachine", ["1.0.0.beta.3"])
+  # s.add_dependency("eventmachine", ["1.0.0.beta.3"])
   s.add_dependency("thin", ["~> 1.2.11"])
   s.add_dependency("thor", ["~> 0.14.0"])
   s.add_dependency("tilt", ["~> 1.3.1"])
@@ -74,6 +74,7 @@ eos
   # Development and test
   # s.add_development_dependency("jquery-rails")
   s.add_development_dependency("coffee-filter", ["~> 0.1.1"])
+  s.add_development_dependency("liquid", ["~> 2.2.0"])
   s.add_development_dependency("cucumber", ["~> 1.0.2"])
   s.add_development_dependency("rake", ["0.8.7"])
   s.add_development_dependency("rspec", ["~> 2.6.0"])