将多个 rake 任务合并为一个 rake 任务 [英] Combining many rake tasks into one rake task

问题描述

而不是像这样单独运行每个 rake 任务:

Instead of running each rake task individually like this:

rake db:drop
rake db:create
rake db:migrate
rake db:load

我想运行一个可以完成所有任务的 rake 任务.

I want to run one rake task that does all for.

这是我的 rakefile 文件:

This is what I have for my rakefile:

desc 'This rebuilds development db'
namespace :rebuild_dev do
 Rake::Task["db:drop"].execute
 Rake::Task["db:create"].execute
 Rake::Task["db:migrate"].execute
 Rake::Task["db:load"].execute
end

以上在我运行时不起作用.

The above doesn't work when I run it.

推荐答案

你想要 invoke 而不是 execute.摘自我自己的代码，展示了如何传递变量:

You want invoke not execute. A little excerpt from my own code showing how to pass variables:

namespace :clients do

  task :create, [:client] => ["clients:creation:checks"] do |t, args|
    Rake::Task["clients:creation:git"].invoke(client, password)
    Rake::Task["server:virtualhost:create"].invoke(client)
    Rake::Task["server:virtualhost:enable"].invoke(client)
    Rake::Task["server:reload"].invoke
    Rake::Task["db:roles:create"].invoke(client, password)
    Rake::Task["db:create"].invoke(client, client)
    Rake::Task["db:migrate"].invoke(client)
  end

end

或者，您可以使任务依赖于另一个任务，就像我上面使用 :create 所做的那样，取决于 clients:creation:checks.

Alternatively, you can make the task depend upon another task as I have done above with :create depending upon clients:creation:checks.

澄清一下，命名空间用于对任务进行分组，因此您必须像上面一样在命名空间中实际定义任务.您不能简单地从命名空间内调用任务.

Just to clarify, a namespace is for grouping tasks, so you must actually define the tasks within the namespace as I have above. You can't simply call tasks from within a namespace.

所以你上面的代码应该是:

So your code above should be:

desc 'This rebuilds development db'
task :rebuild_dev do
  Rake::Task["db:drop"].invoke
  Rake::Task["db:create"].invoke
  Rake::Task["db:migrate"].invoke
  Rake::Task["db:load"].invoke
end

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