From: Chris Kilmer <christopher.kilmer@...>
Date: 2007-10-26T23:56:26+09:00
Subject: Getting namespaces from rake

I am trying to automate the process of running all of the rake tasks
within a specific directory.  Currently, we have a file that looks like
this:

namespace :myapp do

  namespace :bootstrap do

    desc "Bootstrap users"
    task :users do
    end

    desc "Bootstrap categories"
    task :categories do
    end

    desc "Bootstrap all"
    task :all do
      tasks = %w[users categories]
      tasks.each do |task|
        Rake::Task["myapp:bootstrap:#{task}"].invoke
      end
    end

  end

end

I would like a way to have the :all task look at the myapp:bootstrap
namespace and provide a list of tasks automatically.  We want to avoid
someone adding a bootstrap task and forgetting to add it to the array in
the all task (i.e. %w[...)].

I have read through the rake docs and look at the source, but I'm just
not getting it.

I've looked the following:

tasks = Rake::NameSpace(task_manager, "myapp:bootstrap)

Of course, this doesn't work because I can't figure out how to get and
use a TaskManager object.

I'm sure there is a way to get the task list other than grepping rake -T
myapp:bootstrap.  Can anyone provide some insight?  All help
appreciated.
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