CircleCI coverage retrieval - Rake task to email coverage figures and CircleCI config to trigger post-build

config.yml

test:
  post:
    - bundle exec rake email_coverage:

Rakefile

require 'pony'
require 'zip/zip'

desc "Email the coverage to someone who gives a damn"
task :email_coverage do
  archive = "test-coverage.zip"

  Zip::ZipFile.open(archive, 'w') do |zipfile|
    Dir["coverage/**/**"].reject{ |f| f == archive}.each do |file|
      zipfile.add(file.sub('coverage/',''),file)
    end
  end
  
  Pony.mail({
    :to => "[email protected]", 
    :from => "[email protected]", 
    :subject => "Coverage for latest CircleCI build", 
    :body => "Ermahgerd kerverage. Unzip the attachment and load test-coverage/index.html to read.",
    :attachments => {"test-coverage.zip" => File.read(archive)},
    :via => :smtp,
    :via_options => {
      :address => 'smtp.sendgrid.net',
      :port => '587',
      :domain => 'yourdomain.com',
      :user_name => ENV['SENDGRID_USERNAME'],
      :password => ENV['SENDGRID_PASSWORD'],
      :authentication => :plain,
      :enable_starttls_auto => true
    }
  })
end