Rakefile

# encoding: utf-8
# frozen_string_literal: true

#-- Bootstrap --------------------------------------------------------------#

desc 'Initializes your working copy to run the specs'
task :bootstrap do
  if system('which bundle')
    title 'Installing gems'
    sh 'bundle install'

    title 'Updating submodule'
    sh 'git submodule update --init'
  else
    $stderr.puts "\033[0;31m" \
      "[!] Please install the bundler gem manually:\n" \
      '    $ [sudo] gem install bundler' \
      "\e[0m"
    exit 1
  end
end

begin
  require 'bundler/gem_tasks'

  default_tasks = [:spec, :no_warnings]

  #-- Specs ------------------------------------------------------------------#

  require 'rspec/core/rake_task'
  RSpec::Core::RakeTask.new

  #-- Kick -------------------------------------------------------------------#

  desc 'Automatically run specs for updated files'
  task :kick do
    exec 'bundle exec kicker -c'
  end

  #-- RuboCop ----------------------------------------------------------------#

  if Bundler.rubygems.loaded_specs('rubocop')
    require 'rubocop/rake_task'
    RuboCop::RakeTask.new
    default_tasks << :rubocop
  end

  #-- Ruby Warnings ----------------------------------------------------------#

  task :no_warnings do
    next if defined?(RUBY_ENGINE) && RUBY_ENGINE == 'jruby'

    require 'open3'

    files = FileList['lib/**/*.rb']

    out, err = Bundler.with_original_env do
      Open3.popen3(Gem.ruby, '-w', '-Ilib') do |stdin, stdout, stderr, _wait_thr|
        files.each do |file|
          stdin.puts "require '#{file.gsub(%r{(^lib/|\.rb$)}, '')}'"
        end
        stdin.close

        [stdout, stderr].map do |io|
          chunk_size = 16_384
          select_timeout = 0.02
          buffer = []
          next '' if io.closed? || io.eof?
          # IO.select cannot be used here due to the fact that it
          # just does not work on windows
          loop do
            begin
              IO.select([io], nil, nil, select_timeout)
              break if io.eof? # stop raising :-(
              buffer << io.readpartial(chunk_size)
            rescue EOFError
              break
            end
          end
          buffer.join.strip
        end
      end
    end

    err = err.sub(
      %r{.+rubygems/version\.rb:\d+: warning: deprecated Object#=~ is called on Integer; it always returns nil},
      ''
    ).gsub(
      /^RUBY_GC_(HEAP_INIT_SLOTS|MALLOC_LIMIT)=\d+ \(default value: \d+\)$/,
      ''
    ).strip

    raise "Molinillo should contain no ruby warnings:\n\nout:\n#{out}\n\nerr:\n#{err}\n" unless out.empty? && err.empty?
  end

  #-- Inch -------------------------------------------------------------------#

  if Bundler.rubygems.loaded_specs('inch_by_inch')
    require 'inch_by_inch/rake_task'
    InchByInch::RakeTask.new do |task|
      task.failing_grades << :U
    end
    default_tasks << :inch
  end

  #-- Default ----------------------------------------------------------------#

  task :default => default_tasks
rescue LoadError => e
  $stderr.puts "\033[0;31m" \
    '[!] Some Rake tasks haven been disabled because the environment' \
    ' couldn’t be loaded. Be sure to run `rake bootstrap` first.' \
    "\e[0m"
  $stderr.puts e.message
  $stderr.puts e.backtrace
  $stderr.puts
end

#-- Helpers ------------------------------------------------------------------#

def title(title)
  cyan_title = "\033[0;36m#{title}\033[0m"
  puts
  puts '-' * 80
  puts cyan_title
  puts '-' * 80
  puts
end