Gulp file intégration ES => Jade + Compass + Watch

gulpfile.js

var gulp = require('gulp'),
  compass = require('gulp-compass'),
  jade = require('gulp-jade'),
  watch = require('gulp-watch');

var integration_folder = 'web/integration/';
var assets_folder = integration_folder+'assets/';

function error(message) {
  console.log("Error : "+message.toString());
}

gulp.task('compass', function() {
  gulp.src(assets_folder+'sass/**/*.scss')
    .pipe(compass({
      config_file: assets_folder+'config.rb',
      css: assets_folder+'css/',
      sass: assets_folder+'sass/',
      image: assets_folder+'images/',
    }))
    .on('error', error)
    .pipe(gulp.dest(assets_folder+'css/'));
});


gulp.task('jade', function() {
  gulp.src(integration_folder+'views/jade/**/*.jade')
    .pipe(jade({
      pretty: true
    }))
    .on('error', error)
    .pipe(gulp.dest(integration_folder+'views/twig/'))
});


gulp.task('watch', ['compass', 'jade'], function () {
  gulp.watch(assets_folder+'/sass/**/*.scss', ['compass']);
  gulp.watch(integration_folder+'/views/jade/**/*.jade', ['jade']);
});


gulp.task('default', ['watch']);