angular-scroll-animate/bower_components/animate.css/Gruntfile.js

An Angular.js directive which allows you to perform any javascript actions (in the controller, or on the element) when an element is scrolled into, or out of, the users viewport, without any other dependencies.

module.exports = function(grunt) {

  require('load-grunt-tasks')(grunt);

  var concatAnim;

  grunt.initConfig({

    pkg: grunt.file.readJSON('package.json'),

    concat: {
      dist: {
        src: [ 'source/_base.css', 'source/**/*.css' ], // _base.css required for .animated helper class
        dest: 'animate.css'
      }
    },

    autoprefixer: { // https://github.com/nDmitry/grunt-autoprefixer
      options: {
        browsers: ['last 2 versions', 'bb 10']
      },
      no_dest: {
        src: 'animate.css' // output file
      }
    },

    cssmin: {
      minify: {
        src: ['animate.css'],
        dest: 'animate.min.css',
      }
    },

    watch: {
      css: {
        files: [ 'source/**/*', 'animate-config.json' ],
        tasks: ['default']
      }
    }

  });

  // fuction to perform custom task
  concatAnim = function () {

    var categories = grunt.file.readJSON('animate-config.json'),
      category, files, file,
      target = [ 'source/_base.css' ],
      count = 0;

    for ( category in categories ) {
      if ( categories.hasOwnProperty(category) ) {
        files = categories[category]
        for (file in files) {
          if ( files.hasOwnProperty(file) && files[file] ) {
            target.push('source/' + category + '/' + file + '.css');
            count += 1;
          }
        }
      }
    }

    if (!count) {
      grunt.log.writeln('No animations activated.');
    } else {
      grunt.log.writeln(count + (count > 1 ? ' animations' : ' animation') + ' activated.');
    }

    grunt.config('concat', { 'animate.css': target });
    grunt.task.run('concat');

  };

  // register task
  grunt.registerTask('concat-anim', 'Concatenates activated animations', concatAnim); // custom task
  grunt.registerTask('default', ['concat-anim', 'autoprefixer', 'cssmin']);
  grunt.registerTask('dev', ['watch']);

};