Gruntjs 咕噜咖啡有多重任务？

所以，我有一个项目的布局是

src
--library
----a.coffee
----b.coffee
----c.coffee
--demo
----main.coffee

我目前已经设置grunt，将src/library中的coffeescript编译成intermediate/library，将结果连接到intermediate/library.js并放入dist

这很好，但现在我也想看src/demo并做同样的事情，我该怎么做呢

我的grunt文件是：

module.exports = (grunt) ->
  grunt.loadNpmTasks("grunt-contrib-coffee")
  grunt.loadNpmTasks("grunt-contrib-watch")
  grunt.loadNpmTasks("grunt-contrib-concat")

  grunt.initConfig
    watch:
      coffee:
        files: "src/library/**/*.coffee"
        tasks: ["coffee:compile", "concat"]

    coffee:
      compile:
        expand: true,
        flatten: true,
        cwd: "src/library",
        src: ["**/*.coffee"],
        dest: "intermediate/library/",
        ext: ".js"

    concat:
      options:
        separator: ";"
      dist:
        src: ["intermediate/library.js", "intermediate/library/**/*.js"]
        dest: "dist/library.js"

  grunt.registerTask "default", ["watch"]

---

好的，我已经解决了

watch: # specific name for the task that I want to run
  anyName: # name of my specific configuration of the task

所以我能做到

concat:
  options:
    separator: ";"
  library:
    src: ["intermediate/library.js", "intermediate/library/**/*.js"]
    dest: "dist/library.js"
  demo:
    src: ["intermediate/demo.js", "intermediate/demo/**/*.js"]
    dest: "dist/demo.js"

比如说