lib/ace.rb in ace-0.3.1 vs lib/ace.rb in ace-0.3.2

@@ -8,10 +8,12 @@
 # 5) match the routes, write the files
 
 require "yaml"
 require "fileutils"
 require "ace/filters/sass"
+require "digest/sha1"
+require "date"
 
 module Ace
   module Helpers
     # include your helpers here
   end
@@ -20,20 +22,28 @@
     attr_accessor :path, :metadata, :content
     def initialize(path)
       @data = File.read(path)
     end
 
+    def check_metadata_created_at(path)
+      if self.metadata[:title]
+        year, month, day = File.basename(path).slice(0,10).split('-')
+        self.metadata[:created_at] ||= Date.new(year.to_i, month.to_i, day.to_i)
+      end
+    end
+
     def parse
       pieces = @data.split(/^-{3,5}\s*$/)
       # if pieces.size < 3
       #   raise RuntimeError.new(
       #     "The file '#{path}' appears to start with a metadata section (three or five dashes at the top) but it does not seem to be in the correct format."
       #   )
       # end
 
       # Parse
       self.metadata = YAML.load(pieces[1]).inject(Hash.new) { |metadata, pair| metadata.merge(pair[0].to_sym => pair[1]) } || Hash.new
+      # TODO: check metadata[:created_at] and supply it from filename
       self.content = pieces[2..-1].join.strip
     end
   end
 
   # This class represents the items which will be
@@ -133,25 +143,47 @@
       end
 
       "#{self.base_url}#{self.server_path}"
     end
 
+    def digest(data)
+      Digest::SHA1.hexdigest(data)
+    end
+
+    def feeds
+      @feeds ||= begin
+        RSSFeed.subclasses.map(&:new)
+      end
+    end
+
     attr_writer :output_path
     def output_path
       @output_path ||= begin
         unless self.original_path.nil?
           self.original_path.sub("content", "output")
         end
       end
     end
 
     def save!
-      content = self.render # so filters can influence output_path
       puts "~ [RENDER] #{self.output_path}"
+      content = self.render # so filters can influence output_path
 
-      FileUtils.mkdir_p File.dirname(self.output_path)
-      File.open(self.output_path, "w") do |file|
-        file.puts(content)
+      begin
+        old_content = File.open(self.output_path, "rb") { |f| f.read }
+      rescue
+        old_content = ''
+      end
+
+      if self.digest(content) != self.digest(old_content)
+        warn "~ CRC isn't same, save new content into #{self.output_path}"
+        # puts old_content.inspect
+        # puts content.inspect
+
+        FileUtils.mkdir_p File.dirname(self.output_path)
+        File.open(self.output_path, "w") do |file|
+          file.puts(content)
+        end
       end
     end
   end
 
   class Asset < Item