The Rakefile I wrote to use with Exercism

Rakefile

# Include this rakefile in the same directory as your Exercism exercise.
# Instead of submitting with $ exercism submit my_file.rb
# Enter $ rake s my_file.rb
# Now rubocop will automatically check your file before it submits to Exercism.
# If there are any problems, rubocop will tell you what they are like normal, and your exercise won't get submitted.
# If rubocop doesn't find any problems, then your exercise will be submitted.

require 'fileutils'

task :rubocop do
  file = ARGV.last

  sh %(rubocop "#{file}")
  task file.to_sym do; end
end

task :exercism do
  file = ARGV.last

  sh %(exercism submit "#{file}")
  task file.to_sym do; end
end

task s: [:rubocop, :exercism]