determine current view

jade.js

gulp.task('views', function() {
  var views = config.views
  return gulp.src(views.src)
    .pipe($.plumber({errorHandler: $.notify.onError("Error: <%= error.message %>")}))
    .pipe($.data(function(file) {
      return _.extend(config.app, {currentView: path.basename(file.path).replace('.jade', '')})
    }))
    .pipe($.jade({
      pretty: true,
      data: config.app
    }))
    .pipe(gulp.dest(views.destination))
})