Gzip option to compress files before S3 deployment

lib/awestruct/deploy/s3_deploy.rb

@@ -7,14 +7,57 @@ class S3Deploy < Base
       def initialize( site_config, deploy_config )
         @site_path = site_config.output_dir
         @bucket = deploy_config['bucket']
+        @gzip = deploy_config['gzip']
       end
 
       def publish_site
+        compress_site
         $LOG.info "Syncing #{@site_path} to bucket #{@bucket}" if $LOG.info?
         s3cmd = RubyS3Cmd::S3Cmd.new
         s3cmd.sync("#{@site_path}/", @bucket)
         $LOG.info "DONE" if $LOG.info?
       end
+
+      def compress_site
+        if @gzip
+          require 'zlib'
+          Dir.glob("#{@site_path}/**/*") do |item|
+            next if item == '.' or item == '..'
+            ext = File.extname(item)
+            if !ext.empty?
+              ext_sym = ext[1..-1].to_sym
+              case ext_sym
+              when :css, :js, :html
+                gzip_file item
+              end
+            end
+          end
+        end
+      end
+
+      def gzip_file( filename )
+        if !is_gzipped filename
+          $LOG.debug "Gzipping File #{filename}"
+          Zlib::GzipWriter.open("#{filename}.gz") do |gz|
+            gz.mtime = File.mtime(filename)
+            gz.orig_name = filename
+            gz.write IO.binread(filename)
+          end
+          File.rename("#{filename}.gz", "#{filename}")
+        end
+      end
+
+      def is_gzipped( filename )
+        begin
+          File.open("#{filename}") do |f|
+            Zlib::GzipReader.new(f)
+            true
+          end
+        rescue
+          false
+        end
+      end
+
     end
   end
 end