gulpfile.js

;(function() {
  "use strict";

  var gulp =         require("gulp"),
      del =          require("del"),
      plugins =      require("gulp-load-plugins")(),
      gulpSequence = require("gulp-sequence"),
      refresh =      require("gulp-livereload"),
      nodemon =      require("gulp-nodemon");

  function getTask (task) {
    return require("./gulp-tasks/" + task)(gulp, plugins);
  }

  gulp.task("sass", getTask("sass"));
  gulp.task("scripts", getTask("scripts"));
  gulp.task("locales", getTask("locales"));
  gulp.task("images", getTask("images"));
  gulp.task("views", getTask("views"));
  gulp.task("pdf", getTask("pdf"));

  gulp.task("clean:build", function () {
    return del(["build/**"]);
  });

  gulp.task("build", gulpSequence("clean:build", "images", ["sass", "scripts", "locales", "views", "pdf"]));

  gulp.task("watch", function () {
    gulp.watch("public/javascripts/**/*.js", ["scripts"]);
    gulp.watch("views/*.html", ["views"]);
    gulp.watch("public/stylesheets/sass/*.scss", ["sass"]);
    gulp.watch("public/javascripts/locales/**/*.yml", ["locales"]);
  });

  gulp.task("default", [ "build", "watch"], function () {
    nodemon({
      script: "app.js",
      ext: "js",
      ignore: ["/build/**/*.js", "public/**/*.js"],
      env: { "NODE_ENV" : "development" }
    }).on("start", function () {
      refresh.listen();
    });
  });

})();