add stylus template support

README.es.rdoc

@@ -536,6 +536,12 @@ Dependencias::             {coffee-script}[https://github.com/josh/ruby-coffee-s
 Extensiones de Archivo::   <tt>.coffee</tt>
 Ejemplo::                  <tt>coffee :index</tt>
 
+=== Plantillas Stylus
+
+Dependencias::             {ruby-stylus}[https://github.com/lucasmazza/ruby-stylus]
+Extensiones de Archivo::   <tt>.styl</tt>
+Ejemplo::                  <tt>stylus :index</tt>
+
 === Plantillas Yajl
 
 Dependencias::             {yajl-ruby}[https://github.com/brianmario/yajl-ruby]

README.rdoc

@@ -520,6 +520,12 @@ Dependency::        {coffee-script}[https://github.com/josh/ruby-coffee-script]
 File Extensions::   <tt>.coffee</tt>
 Example::           <tt>coffee :index</tt>
 
+=== Stylus Templates
+
+Dependency::        {ruby-stylus}[https://github.com/lucasmazza/ruby-stylus]
+File Extensions::   <tt>.styl</tt>
+Example::           <tt>stylus :index</tt>
+
 === Yajl Templates
 
 Dependency::        {yajl-ruby}[https://github.com/brianmario/yajl-ruby]

lib/sinatra/base.rb

@@ -598,6 +598,11 @@ def less(template, options={}, locals={})
       render :less, template, options, locals
     end
 
+    def stylus(template, options={}, locals={})
+      options.merge! :layout => false, :default_content_type => :css
+      render :styl, template, options, locals
+    end
+
     def builder(template=nil, options={}, locals={}, &block)
       options[:default_content_type] = :xml
       render_ruby(:builder, template, options, locals, &block)

test/stylus_test.rb

@@ -0,0 +1,90 @@
+require File.expand_path('../helper', __FILE__)
+
+begin
+  require 'stylus'
+
+  begin
+    Stylus.compile '1'
+  rescue Exception
+    raise LoadError, 'unable to find Stylus compiler'
+  end
+
+  class StylusTest < Test::Unit::TestCase
+    def stylus_app(options = {}, &block)
+      mock_app do
+        set :views, File.dirname(__FILE__) + '/views'
+        set(options)
+        get('/', &block)
+      end
+      get '/'
+    end
+
+    it 'renders inline Stylus strings' do
+      assert false, 'waiting response on how stylus can be rendered inline'
+      stylus_app { stylus "a margin auto\n" }
+      assert ok?
+      assert body.include?("a {\n  margin: auto;\n}\n")
+    end
+
+    it 'defaults content type to css' do
+      stylus_app { stylus :hello }
+      assert ok?
+      assert_equal "text/css;charset=utf-8", response['Content-Type']
+    end
+
+    it 'defaults allows setting content type per route' do
+      stylus_app do
+        content_type :html
+        stylus :hello
+      end
+      assert ok?
+      assert_equal "text/html;charset=utf-8", response['Content-Type']
+    end
+
+    it 'defaults allows setting content type globally' do
+      stylus_app(:styl => { :content_type => 'html' }) do
+        stylus :hello
+      end
+      assert ok?
+      assert_equal "text/html;charset=utf-8", response['Content-Type']
+    end
+
+    it 'renders .styl files in views path' do
+      stylus_app { stylus :hello }
+      assert ok?
+      assert_include body, "a {\n  margin: auto;\n}\n"
+    end
+
+    it 'ignores the layout option' do
+      stylus_app { stylus :hello, :layout => :layout2 }
+      assert ok?
+      assert_include body, "a {\n  margin: auto;\n}\n"
+    end
+
+    it "raises error if template not found" do
+      mock_app {
+        get('/') { stylus :no_such_template }
+      }
+      assert_raise(Errno::ENOENT) { get('/') }
+    end
+
+    it "passes stylus options to the stylus engine" do
+      stylus_app { stylus :hello, :no_wrap => true }
+      assert ok?
+      assert_body "a {\n  margin: auto;\n}\n"
+    end
+
+    it "passes default stylus options to the stylus engine" do
+      mock_app do
+        set :stylus, :no_wrap => true # default stylus style is :nested
+        get('/') { stylus :hello }
+      end
+      get '/'
+      assert ok?
+      assert_body "a {\n  margin: auto;\n}\n"
+    end
+  end
+
+rescue LoadError
+  warn "#{$!.to_s}: skipping stylus tests"
+end

test/views/hello.styl

@@ -0,0 +1,2 @@
+a
+  margin auto