Cleanup VCR Cassettes

cleanup_vcr_cassettes.rb

require 'set'
USED_CASSETTES = Set.new

module CassetteReporter
  def insert_cassette(name, options = {})
    USED_CASSETTES << VCR::Cassette.new(name, options).file
    super
  end
end
VCR.extend(CassetteReporter)

RSpec.configure do |config|
  config.after(:suite) {
    files = (Dir['spec/vcr_cassettes/**/*.yml'].map { |d| File.expand_path(d) } - USED_CASSETTES.to_a)

    unless files.empty?
      files.each { |v| File.delete(v) }
      puts files.inspect
    end
  }
end