Add gzip_level option to set the compression level

lib/awestruct/deploy/base_deploy.rb

@@ -18,6 +18,7 @@ def initialize(site_config, deploy_config)
         # Add a single front slash at the end of output dir
         @site_path = File.join( site_config.output_dir, '/' ).gsub(/^\w:\//, '/')
         @gzip = deploy_config['gzip']
+        @gzip_level = deploy_config['gzip_level'] || Zlib::BEST_COMPRESSION
         @source_dir = deploy_config['source_dir'] || site_config.dir
         @ignore_uncommitted = deploy_config['uncommitted']
         init_scm(deploy_config['scm'] || 'git')
@@ -61,16 +62,16 @@ def gzip_site(site_path)
             when :css, :js, :html
               require 'zlib'
               if !is_gzipped item
-                gzip_file item
+                gzip_file(item, @gzip_level)
               end
             end
           end
         end
       end
 
-      def gzip_file(filename)
+      def gzip_file(filename, level)
         $LOG.debug "Gzipping File #{filename}"
-        Zlib::GzipWriter.open("#{filename}.gz") do |gz|
+        Zlib::GzipWriter.open("#{filename}.gz", level) do |gz|
           gz.mtime = File.mtime(filename)
           gz.orig_name = filename
           gz.write File.binread(filename)

spec/deploy_spec.rb

@@ -44,6 +44,7 @@
 
     deploy_config = mock
     deploy_config.stub(:[]).with('gzip').and_return true
+    deploy_config.stub(:[]).with('gzip_level')
     deploy_config.stub(:[]).with('source_dir').and_return '.'
     deploy_config.stub(:[]).with('scm').and_return nil
     deploy_config.stub(:[]).with('uncommitted').and_return true
@@ -64,16 +65,17 @@
 
     deploy_config = mock
     deploy_config.stub(:[]).with('gzip').and_return true
+    deploy_config.stub(:[]).with('gzip_level')
     deploy_config.stub(:[]).with('source_dir').and_return '.'
     deploy_config.stub(:[]).with('scm').and_return nil
     deploy_config.stub(:[]).with('uncommitted').and_return nil
 
     deployer = Awestruct::Deploy::Base.new(site_config, deploy_config)
-    deployer.should_receive(:gzip_file).with("#{site_dir}/yes.html")
-    deployer.should_receive(:gzip_file).with("#{site_dir}/yes.js")
-    deployer.should_receive(:gzip_file).with("#{site_dir}/subdir/yes.css")
-    deployer.should_not_receive(:gzip_file).with("#{site_dir}/no.txt")
-    deployer.should_not_receive(:gzip_file).with("#{site_dir}/no.html.gz")
+    deployer.should_receive(:gzip_file).with("#{site_dir}/yes.html", Zlib::BEST_COMPRESSION)
+    deployer.should_receive(:gzip_file).with("#{site_dir}/yes.js", Zlib::BEST_COMPRESSION)
+    deployer.should_receive(:gzip_file).with("#{site_dir}/subdir/yes.css", Zlib::BEST_COMPRESSION)
+    deployer.should_not_receive(:gzip_file).with("#{site_dir}/no.txt", Zlib::BEST_COMPRESSION)
+    deployer.should_not_receive(:gzip_file).with("#{site_dir}/no.html.gz", Zlib::BEST_COMPRESSION)
     deployer.gzip_site(site_dir)
   end
 
@@ -88,6 +90,7 @@
 
     deploy_config = mock
     deploy_config.stub(:[]).with('gzip').and_return true
+    deploy_config.stub(:[]).with('gzip_level')
     deploy_config.stub(:[]).with('source_dir').and_return '.'
     deploy_config.stub(:[]).with('scm').and_return nil
     deploy_config.stub(:[]).with('uncommitted').and_return nil
@@ -96,11 +99,37 @@
     deployer.gzip_site(site_dir)
 
     # Gzip only once
-    deployer.should_not_receive(:gzip_file).with("#{site_dir}/yes.html")
-    deployer.should_not_receive(:gzip_file).with("#{site_dir}/yes.js")
-    deployer.should_not_receive(:gzip_file).with("#{site_dir}/subdir/yes.css")
-    deployer.should_not_receive(:gzip_file).with("#{site_dir}/no.txt")
+    deployer.should_not_receive(:gzip_file).with("#{site_dir}/yes.html", Zlib::BEST_COMPRESSION)
+    deployer.should_not_receive(:gzip_file).with("#{site_dir}/yes.js", Zlib::BEST_COMPRESSION)
+    deployer.should_not_receive(:gzip_file).with("#{site_dir}/subdir/yes.css", Zlib::BEST_COMPRESSION)
+    deployer.should_not_receive(:gzip_file).with("#{site_dir}/no.txt", Zlib::BEST_COMPRESSION)
     deployer.gzip_site(site_dir)
   end
 
+  it "should gzip with the compression level" do
+    site_tmp_dir = Dir.mktmpdir("site_dir")
+    site_src_dir = File.join(File.dirname(__FILE__), 'test-data/gzip')
+    FileUtils.cp_r(site_src_dir, site_tmp_dir)
+    site_dir = "#{site_tmp_dir}/gzip"
+
+    site_config = mock
+    site_config.stub(:output_dir).and_return "#{site_dir}"
+
+    deploy_config = mock
+    deploy_config.stub(:[]).with('gzip').and_return true
+    deploy_config.stub(:[]).with('gzip_level').and_return 6
+    deploy_config.stub(:[]).with('source_dir').and_return '.'
+    deploy_config.stub(:[]).with('scm').and_return nil
+    deploy_config.stub(:[]).with('uncommitted').and_return nil
+
+    deployer = Awestruct::Deploy::Base.new(site_config, deploy_config)
+    deployer.should_receive(:gzip_file).with("#{site_dir}/yes.html", 6)
+    deployer.should_receive(:gzip_file).with("#{site_dir}/yes.js", 6)
+    deployer.should_receive(:gzip_file).with("#{site_dir}/subdir/yes.css", 6)
+    deployer.should_not_receive(:gzip_file).with("#{site_dir}/no.txt", 6)
+    deployer.should_not_receive(:gzip_file).with("#{site_dir}/no.html.gz", 6)
+    deployer.gzip_site(site_dir)
+  end
+
+
 end

spec/github_pages_deploy_spec.rb

@@ -11,6 +11,7 @@
     @deploy_config.stub(:[]).with('branch').and_return('the-branch')
     @deploy_config.stub(:[]).with('repository').and_return('the-repo')
     @deploy_config.stub(:[]).with('gzip').and_return('false')
+    @deploy_config.stub(:[]).with('gzip_level')
     @deploy_config.stub(:[]).with('scm').and_return('git')
     @deploy_config.stub(:[]).with('source_dir').and_return('.')
     @deploy_config.stub(:[]).with('uncommitted').and_return('false')