Speed up your default Rake task with the multitask -m option

This site does not allow itself to be embedded. You can still read it on the original site — the toolbar below keeps your place in the directory.

I recently discovered that Rake has the ability to run tasks in parallel. For Rails projects with many test and linting tasks, this can be a huge time-saver. tl;dr bin/rake -m turns your default Rake task into a “multitask” that runs its prerequisites in parallel. You may need to restructure the definition of your default Rake task to take full advantage. One of my projects saw a 3x…

Read on mattbrictson.com ↗