class RSpec::Core::RakeTask

def blank
  lambda {|s| s.nil? || s == ""}
end

def files_to_run
  if ENV['SPEC']
    FileList[ ENV['SPEC'] ].sort
  else
    FileList[ pattern ].sort.map { |f| shellescape(f) }
  end
end

def gemfile=(*)
  RSpec.deprecate("RSpec::Core::RakeTask#gemfile=", 'ENV["BUNDLE_GEMFILE"]')
end

def has_files?
  empty = files_to_run.empty?
  puts "No examples matching #{pattern} could be found" if empty
  not empty
end

def initialize(*args, &task_block)
  setup_ivars(args)
  desc "Run RSpec code examples" unless ::Rake.application.last_comment
  task name, *args do |_, task_args|
    RakeFileUtils.send(:verbose, verbose) do
      task_block.call(*[self, task_args].slice(0, task_block.arity)) if task_block
      run_task verbose
    end
  end
end

def run_task(verbose)
  files = has_files?
  if files
    command = spec_command
    begin
      puts command if verbose
      success = system(command)
    rescue
      puts failure_message if failure_message
    end
    raise("#{command} failed") if fail_on_error unless success
  end
end

def runner
  rcov ? rcov_path : rspec_path
end

def setup_ivars(args)
  @name = args.shift || :spec
  @rcov_opts, @ruby_opts, @rspec_opts = nil, nil, nil
  @warning, @rcov = false, false
  @verbose, @fail_on_error = true, true
  @rcov_path  = 'rcov'
  @rspec_path = 'rspec'
  @pattern    = './spec{,/*/**}/*_spec.rb'
end

def shellescape(string)
  string.shellescape
end

def shellescape(string)
  string.gsub(/"/, '\"').gsub(/'/, "\\\\'")
end

def skip_bundler=(*)
  RSpec.deprecate("RSpec::Core::RakeTask#skip_bundler=")
end

def spec_command
  cmd_parts = []
  cmd_parts << RUBY
  cmd_parts << ruby_opts
  cmd_parts << "-w" if @warning
  cmd_parts << "-S" << runner
  cmd_parts << "-Ispec:lib" << rcov_opts if rcov
  cmd_parts << files_to_run
  cmd_parts << "--" if rcov && rspec_opts
  cmd_parts << rspec_opts
  cmd_parts.flatten.reject(&blank).join(" ")
end

def spec_opts=(opts)
  RSpec.deprecate('RSpec::Core::RakeTask#spec_opts=', 'rspec_opts=')
  @rspec_opts = opts
end

def warning=(true_or_false)
  RSpec.deprecate("RSpec::Core::RakeTask#warning=", 'ruby_opts="-w"')
  @warning = true_or_false
end