Gruntfile.js

const unixTimestamp = Math.floor(Date.now() / 1000);

module.exports = function (grunt) {
  grunt.initConfig({
    pkg: grunt.file.readJSON("package.json"),
    concat: {
      dist: {
        src: [
          "grappelli/static/grappelli/js/grappelli.js",
          "grappelli/static/grappelli/js/jquery*.js",
        ],
        dest: "grappelli/static/grappelli/js/grappelli.min.js",
      },
    },
    jshint: {
      options: {
        expr: true,
        scripturl: true,
        reporterOutput: "",
        esversion: 6,
      },
      beforeconcat: [
        "grappelli/static/grappelli/js/grappelli.js",
        "grappelli/static/grappelli/js/jquery*.js",
      ],
      afterconcat: ["grappelli/static/grappelli/js/grappelli.min.js"],
    },
    uglify: {
      build: {
        files: {
          "grappelli/static/grappelli/js/grappelli.min.js": [
            "grappelli/static/grappelli/js/grappelli.min.js",
          ],
        },
      },
    },
    sprite: {
      all: {
        algorithm: "top-down",
        src: "grappelli/static/grappelli/images/icons/*.png",
        dest: `grappelli/static/grappelli/images/spritesheet-${unixTimestamp}.png`,
        destCss: "grappelli/sass/partials/library/_spritesheet.scss",
        imgPath: `../images/spritesheet-${unixTimestamp}.png`,
        padding: 200,
      },
    },
    exec: {
      build_sphinx: {
        cmd: "sphinx-build -b html docs docs/_build",
      },
      sass: {
        cmd: "npm run sass",
      },
    },
    flake8: {
      options: {
        maxLineLength: 200,
        format: "pylint",
        showSource: true,
        ignore: ["E501"],
      },
      src: ["setup.py", "grappelli/**/*.py"],
    },
    watch: {
      js: {
        files: [
          "grappelli/static/grappelli/js/grappelli.js",
          "grappelli/static/grappelli/js/jquery*.js",
        ],
        tasks: [
          "jshint:beforeconcat",
          "concat",
          "jshint:afterconcat",
          "uglify",
        ],
      },
      css: {
        files: ["grappelli/sass/**/*.scss"],
        tasks: ["exec:sass"],
      },
      sprite: {
        files: ["grappelli/static/grappelli/images/icons/*.png"],
        tasks: ["sprite:all"],
      },
      sphinx: {
        files: ["docs/*.rst", "docs/*.py"],
        tasks: ["exec:build_sphinx"],
      },
    },
  });

  // Load
  grunt.loadNpmTasks("grunt-contrib-watch");
  grunt.loadNpmTasks("grunt-contrib-jshint");
  grunt.loadNpmTasks("grunt-contrib-uglify-es");
  grunt.loadNpmTasks("grunt-contrib-concat");
  grunt.loadNpmTasks("grunt-contrib-compass");
  grunt.loadNpmTasks("grunt-exec");
  grunt.loadNpmTasks("grunt-flake8");
  grunt.loadNpmTasks("grunt-spritesmith");

  // Javascripts
  grunt.registerTask("javascripts", "JSHint, Concat and Uglify.", function () {
    grunt.task.run([
      "jshint:beforeconcat",
      "concat",
      "jshint:afterconcat",
      "uglify",
    ]);
  });

  // Sphinx
  grunt.registerTask("sphinx", "Build doc files.", function () {
    grunt.task.run(["exec:build_sphinx"]);
  });

  // Default
  grunt.registerTask("default", ["watch"]);
};