alter-the-rails-setup-script.md

Alter The Rails Setup Script

When you generate a new Rails app, a set of scripts are put in the bin/ folder of your new app. These bin scripts are ruby scripts that you can use to run rails commands, rake commands, as well as setup your rails project.

These scripts can be modified like you'd modify any other ruby code.

In fact, the setup scripts encourages you to modify it by providing an example of an additional setup step you can add.

#!/usr/bin/env ruby
require "fileutils"

# ...

FileUtils.chdir APP_ROOT do
  # This script is a way to set up or update your development environment automatically.
  # This script is idempotent, so that you can run it at any time and get an expectable outcome.
  # Add necessary setup steps to this file.

  puts "\n== Installing dependencies =="
  system! "gem install bundler --conservative"
  system("bundle check") || system!("bundle install")

  # puts "\n== Copying sample files =="
  # unless File.exist?("config/database.yml")
  #   FileUtils.cp "config/database.yml.sample", "config/database.yml"
  # end

  # ...
end

There are several steps built in, but it provides an example of how you can copy a sample YAML file to be the actual version of that YAML file.