grunt-contrib-watch的监测子任务

Question

我有以下的Gruntfile.coffee。我正在监视如下所示的监视任务以查看文件更改，然后将更改的文件编译为coffee-script。

# Watch task 
watch: 
coffee: 
    files: ['client/**/*.coffee','server/**/*/.coffee'] 
    options: 
    nospawn: true 
    livereload: true 

# Watch changed files 
grunt.event.on 'watch', (action, filepath) -> 
cwd = 'client/' 
filepath = filepath.replace(cwd,'') 
grunt.config.set('coffee', 
    changed: 
    expand: true 
    cwd: cwd 
    src: filepath 
    dest: 'client-dist/' 
    ext: '.js' 
) 
grunt.task.run('coffee:changed') 

但是，我想添加另一个监视任务来复制文件，而不是咖啡文件。我将如何监控这些变化？

我想这样做

# Watch copy task 
grunt.event.on 'watch:copy', (action,filepath) -> ... 
# Watch coffee task 
grunt.event.on 'watch:coffee', (action,filepath) -> ... 

的，但似乎并没有工作。想法？

Answer 1

我的解决方案 - 完成工作，但并不漂亮。我欢迎更好的答案

基本上，如果如果它.coffee运行咖啡编译任务
我匹配传入文件
的路径。 *运行复制任务

# Watch changed files 
grunt.event.on 'watch', (action, filepath) -> 

# Determine server or client folder 
path = if filepath.indexOf('client') isnt -1 then 'client' else 'server' 
cwd = "#{path}/" 
filepath = filepath.replace(cwd,'')   

# Minimatch for coffee files 
if minimatch filepath, '**/*.coffee' 
    # Compile changed file 
    grunt.config.set('coffee', 
    changed: 
    expand: true 
    cwd: cwd 
    src: filepath 
    dest: "#{path}-dist/" 
    ext: '.js' 
) 
    grunt.task.run('coffee:changed') 

# Minimatch for all others 
if minimatch filepath, '**/*.!(coffee)' 
    # Copy changed file 
    grunt.config.set('copy', 
    changed: 
    files: [ 
    expand: true 
    cwd: cwd 
    src: filepath 
    dest: "#{path}-dist/"      
    ] 
) 
    grunt.task.run("copy:changed") 

Answer 2

看看纸条，在计时器事件示例的底部：https://github.com/gruntjs/grunt-contrib-watch#using-the-watch-event

的watch事件并非意在取代繁重的API。改为使用tasks：

watch: 
    options: 
    nospawn: true 
    livereload: true 
    coffee: 
    files: ['client/**/*.coffee','server/**/*/.coffee'] 
    tasks: ['coffee'] 
    copy: 
    files: ['copyfiles/*'] 
    tasks: ['copy']