refactor; add basic gallery support

_plugins/loopdir.rb

@@ -0,0 +1,85 @@
+# inspired by
+# - https://gist.github.com/jgatjens/8925165
+# - http://simon.heimlicher.com/articles/2012/02/01/jekyll-directory-listing
+
+module Jekyll
+  class Loopdir < Liquid::Block
+    include Liquid::StandardFilters
+    Syntax = /(#{Liquid::QuotedFragment}+)?/
+ 
+    def initialize(tag_name, markup, tokens)
+      @attributes = {}
+ 
+      @attributes['path'] = nil;
+      @attributes['parse'] = 'true';
+      @attributes['match'] = '*';
+      @attributes['sort'] = 'asc';
+ 
+      markup.scan(Liquid::TagAttributes) do | key, value |
+        @attributes[key] = value
+      end
+
+      if @attributes['path'].nil?
+        raise SyntaxError.new("The `path` attribute is missing for `loopdir` tag.")
+      end
+
+      if 'true' == @attributes['parse']
+        @attributes['parse'] = true
+      else
+        @attributes['parse'] = false
+      end
+ 
+      super
+    end
+ 
+    def render(context)
+      context.registers[:loopdir] ||= Hash.new(0)
+ 
+      files = Dir.glob(File.join(@attributes['path'], @attributes['match']))
+
+      if @attributes['sort'].casecmp('desc') == 0
+        files.sort! do | x, y |
+          y <=> x
+        end
+      else
+        files.sort!
+      end
+ 
+      result = []
+ 
+      context.stack do
+        files.each do |pathname|
+          if @attributes['parse']
+            data = {}
+
+            content = File.read(pathname)
+
+            if content =~ /^(---\s*\n.*?\n?)^(---\s*$\n?)/m
+              content = $POSTMATCH
+
+              begin
+                data = YAML.load($1)
+              rescue => e
+                puts "YAML Exception reading #{name}: #{e.message}"
+              end
+            end
+
+            data['name'] = File.basename(pathname, @attributes['match'].sub('*', ''))
+            data['path'] = pathname
+            data['content'] = content
+
+            context['item'] = data
+          else
+            context['item'] = pathname
+          end
+
+          result << render_all(@nodelist, context)
+        end
+   
+        result
+      end
+    end
+  end
+end
+ 
+Liquid::Template.register_tag('loopdir', Jekyll::Loopdir)