ServerSpec Rakefile sample

Rakefile

require 'rake'
require 'rspec/core/rake_task'
require 'rubocop/rake_task'

desc 'Run all tests on CircleCI'
task circleci: [:style]

desc 'Run all style checks'
task style: 'style:ruby'

desc 'Install rubygems'
task :bundle do
  sh 'gem install bundler'
  sh 'bundle --path vendor/bundle --binstubs .bundle/bin'
end

desc 'Install rubygems and third-paty Chef cookbooks'
task init: [:bundle]

desc 'Run serverspec to all hosts'
task serverspec: 'serverspec:all'

namespace :serverspec do
  targets = []
  Dir.glob('./spec/*').each do |dir|
    next unless File.directory?(dir)
    target = File.basename(dir)
    target = "_#{target}" if target == "default"
    targets << target
  end

  task :all     => targets
  task :default => :all

  targets.each do |target|
    original_target = target == "_default" ? target[1..-1] : target
    desc "Run serverspec tests to #{original_target}"
    RSpec::Core::RakeTask.new(target.to_sym) do |t|
      ENV['TARGET_HOST'] = original_target
      t.pattern = "spec/#{original_target}/*_spec.rb"
    end
  end
end

namespace :style do
  desc 'Run Ruby style checks'
  RuboCop::RakeTask.new(:ruby) do |t|
    t.patterns = %w(
      Rakefile
      spec
    )
  end
end