是否有“method_missing"?用于耙任务? [英] Is there a "method_missing" for rake tasks?

问题描述

如果我的 Rakefile 没有找到具有特定名称的任务，我希望 rake 根据某些规则以该名称创建一个新任务，如果缺少任务名称的文件存在.但如果没有，我想退回到默认值(不知道如何构建任务 'foo'！").

If my Rakefile does not find a task with a particular name, I'd like rake to instead create a new task by that name according to certain rules, if a file with the missing task name exists. But if it doesn't, I want to fall back to the default ("Don't know how to build task 'foo'!").

简而言之，是否有用于 Rake 的 method_missing?

In short, is there a method_missing for Rake?

推荐答案

我还没试过，但快速搜索发现 这个.

I haven't tried it, but a quick search revealed this.

如果你定义了一个空的规则字符串，你可以捕捉任何任务其他地方没有定义.这使动态创建变得容易耙任务.本质上，这是method_missing for rake！

If you define a rule with an empty string, you can catch any task that hasn’t been defined elsewhere. This makes it easy to dynamically create rake tasks. Essentially, this is method_missing for rake!

rule "" do |t|
  t.name 
  # ... do something with the name of the task  
end

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