class ParallelTests::RSpec::Runner

def color
  '--color --tty' if $stdout.tty?
end

def command_with_seed(cmd, seed)
  clean = cmd.sub(/\s--(seed\s+\d+|order\s+rand(om)?(:\d+)?)\b/, '')
  "#{clean} --seed #{seed}"
end

def determine_executable
  cmd = case
  when File.exist?("bin/rspec")
    ParallelTests.with_ruby_binary("bin/rspec")
  when ParallelTests.bundler_enabled?
    cmd = (run("bundle show rspec-core") =~ %r{Could not find gem.*} ? "spec" : "rspec")
    "bundle exec #{cmd}"
  else
    %w[spec rspec].detect{|cmd| system "#{cmd} --version > #{DEV_NULL} 2>&1" }
  end
  cmd or raise("Can't find executables rspec or spec")
end

def line_is_result?(line)
  line =~ /\d+ examples?, \d+ failures?/
end

def run(cmd)
  `#{cmd}`
end

def run_tests(test_files, process_number, num_processes, options)
  exe = executable # expensive, so we cache
  cmd = [exe, options[:test_options], color, spec_opts, *test_files].compact.join(" ")
  execute_command(cmd, process_number, num_processes, options)
end

def runtime_log
  'tmp/parallel_runtime_rspec.log'
end

def spec_opts
  options_file = ['.rspec_parallel', 'spec/parallel_spec.opts', 'spec/spec.opts'].detect{|f| File.file?(f) }
  return unless options_file
  "-O #{options_file}"
end

def test_file_name
  "spec"
end

def test_suffix
  /_spec\.rb$/
end