Jade in a gruntfile, taking from my views directory and creating along with all sub-folders in my static directory.

gistfile1.txt

 jade: {
      dynamic_mappings: {
        files: [
          {
            expand: true,
            cwd: 'views/',
            src: ['**/*.jade'],
            dest: 'static',
            ext: '.html'
          }
        ]
      },
      compile: {
        options: {
          data: {
            debug: true
          }
        }
      }
    },