What is the purpose of the rakefile available in the demo directory in Ruby?

The Rakefile available in the demo directory in Ruby serves the following purposes:

Automation of Tasks

The Rakefile allows you to define and automate various tasks related to your Ruby project. These tasks can include running tests, generating documentation, deploying the application, and more. By defining these tasks in the Rakefile, you can easily execute them using the rake command.

Task Dependencies

The Rakefile supports task dependencies, which means you can define tasks that depend on the successful completion of other tasks. This helps in organizing and structuring your project's tasks, ensuring that prerequisites are met before executing a specific task.

Task Descriptions

Each task defined in the Rakefile can have a description associated with it. These descriptions are displayed when you run `rake ...