Gruntfileの重複をなくして宣言的にする

小ネタ。

1. loadNpmTasks

Before:

grunt.loadNpmTasks 'grunt-exec'
grunt.loadNpmTasks 'grunt-regarde'
grunt.loadNpmTasks 'grunt-contrib-livereload'

After:

grunt.loadNpmTasks task for task in [
  'grunt-exec'
  'grunt-regarde'
  'grunt-contrib-livereload'
]

2. registerTask

Before:

grunt.registerTask 'initialize', ['copy-components']
grunt.registerTask 'build', ['exec:build_index_page']
grunt.registerTask 'server', ['exec:server']
grunt.registerTask 'default', [
  'livereload-start'
  'exec:server_background'
  'regarde'
]

After:

grunt.registerTask name, targets for name, targets of {
  'initialize': ['copy-components']
  'build': ['exec:build_index_page']
  'server': ['exec:server']
  'default': [
    'livereload-start'
    'exec:server_background'
    'regarde'
  ]
}

実例

追記: JavaScriptの場合

せっかくなのでJavaScriptの場合も考えました。JavaScript難しい()

1. loadNpmTasks

[
  'grunt-exec',
  'grunt-regarde',
  'grunt-contrib-livereload'
].forEach(grunt.loadNpmTasks);

2. registerTask

+{
  tasks: {
    'initialize': ['copy-components'],
    'build': ['exec:build_index_page'],
    'server': ['exec:server'],
    'default': [
      'livereload-start',
      'exec:server_background',
      'regarde'
    ]
  },

  get valueOf() { for (this.set in this.tasks) {/* Do nothing */} },
  set set(name) { grunt.registerTask(name, this.tasks[name]); }
};

注意

• ジョークです
• 実行はできますが、JSHintは通りません