How to run rake tasks from console?

Question

I want to invoke my rake task from console. Is it doable? if yes, how to do so?

I tried this on console:

require 'rake' Rake::Task['my_task'].invoke 

but it give me this error:

RuntimeError: Don't know how to build task 

it's like the rake cannot found the task.

any help would be appreciated.

Thank you

Edit: I am using rails 2.3.5

Answer 1

Running your Rake tasks requires two steps:

1. Loading Rake
2. Loading your Rake tasks

You are missing the second step.

Normally this is done in the Rakefile, but you have to do it manually here:

require 'rake' Rails.application.load_tasks # <-- MISSING LINE Rake::Task['my_task'].invoke 

Answer 2

The easiest way to do it is to run %x[command] from the irb. I'm not sure if what you want to achieve though.

%x[rake db:migrate] 

EDIT: I highly recommend to use .invoke as Daniel says in the accepted answer.