如何从 Rake 任务中运行 Rake 任务? [英] How to run Rake tasks from within Rake tasks?

问题描述

我有一个Rakefile，根据全局变量$build_type，以两种方式编译项目，可以是:debug 或:release(结果在单独的目录中):

I have a Rakefile that compiles the project in two ways, according to the global variable $build_type, which can be :debug or :release (the results go in separate directories):

task :build => [:some_other_tasks] do
end

我希望创建一个任务，依次使用两种配置编译项目，如下所示:

I wish to create a task that compiles the project with both configurations in turn, something like this:

task :build_all do
  [ :debug, :release ].each do |t|
    $build_type = t
    # call task :build with all the tasks it depends on (?)
  end
end

有没有办法像调用方法一样调用任务?或者我怎样才能实现类似的目标?

Is there a way to call a task as if it were a method? Or how can I achieve anything similar?

推荐答案

如果您需要将任务表现得像方法一样，那么使用实际方法如何?

task :build => [:some_other_tasks] do
  build
end

task :build_all do
  [:debug, :release].each { |t| build t }
end

def build(type = :debug)
  # ...
end

如果您更愿意坚持 rake 的习惯用法，以下是您的可能性，根据过去的答案汇总:

• 这总是执行任务，但不执行其依赖项:

  If you'd rather stick to rake's idioms, here are your possibilities, compiled from past answers:

  • This always executes the task, but it doesn't execute its dependencies:

    Rake::Task["build"].execute
    

  • 这个执行依赖项，但只有在以下情况下才执行任务它尚未被调用:

  • This one executes the dependencies, but it only executes the task if it has not already been invoked:

    Rake::Task["build"].invoke
    

  • 这首先重置任务的 already_invoked 状态，允许任务然后再次执行，依赖和所有:

  • This first resets the task's already_invoked state, allowing the task to then be executed again, dependencies and all:

    Rake::Task["build"].reenable
    Rake::Task["build"].invoke
    

  • 请注意，除非重新启用，否则不会自动重新执行已调用的依赖项.在 Rake >= 10.3.2 中，您也可以使用以下命令重新启用它们:

  • Note that dependencies already invoked are not automatically re-executed unless they are re-enabled. In Rake >= 10.3.2, you can use the following to re-enable those as well:

    Rake::Task["build"].all_prerequisite_tasks.each(&:reenable)
    

  这篇关于如何从 Rake 任务中运行 Rake 任务?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！