class Guard::RSpec::RSpecProcess

def _read_results
  Results.new(formatter_tmp_file)
rescue Errno::ENOENT
  msg = "Guard::RSpec cannot open results file: %s. This is likely a bug"\
    "so please report this at"\
    " http://github.com/guard/guard-rspec/issues/new along with as much"\
    "information as possible to reproduce this issue."
  Compat::UI.error(format(msg, formatter_tmp_file.inspect))
  raise
ensure
  File.delete(formatter_tmp_file) if File.exist?(formatter_tmp_file)
end

def _really_run
  env = { "GUARD_RSPEC_RESULTS_FILE" => formatter_tmp_file }
  _warn_unless_absolute_path(formatter_tmp_file)
  Compat::UI.debug("Guard::RSpec: results file: #{formatter_tmp_file}")
  pid = Kernel.spawn(env, command) # use spawn to stub in JRuby
  result = ::Process.wait2(pid)
  result.last.exitstatus
rescue Errno::ENOENT => ex
  raise Failure, "Failed: #{command.inspect} (#{ex})"
end

def _run
  _with_desired_bundler_env do
    exit_code = _really_run
    msg = "Guard::RSpec: RSpec command %s exited with: %s"
    Compat::UI.debug(format(msg, command, exit_code.inspect))
    unless [0, Command::FAILURE_EXIT_CODE].include?(exit_code)
      msg = "Failed: %s (exit code: %s)"
      raise Failure, format(msg, command.inspect, exit_code.inspect)
    end
    exit_code
  end
end

def _warn_unless_absolute_path(formatter_tmp_file)
  return if Pathname(formatter_tmp_file).absolute?
  msg = "Guard::RSpec: The results file %s is not an absolute path."\
    " Please provide an absolute path to avoid issues."
  Compat::UI.warning(format(msg, formatter_tmp_file.inspect))
end

def _with_desired_bundler_env
  desired_bundler_env = options[:bundler_env]
  if !defined?(::Bundler) || desired_bundler_env == :inherit
    yield
  elsif desired_bundler_env == :clean_env
    ::Bundler.with_clean_env { yield }
  else
    ::Bundler.with_original_env { yield }
  end
end

def all_green?
  exit_code.zero?
end

def initialize(command, formatter_tmp_file, options = {})
  @command = command
  @formatter_tmp_file = formatter_tmp_file
  @results = nil
  @options = options
  @exit_code = _run
  @results = _read_results
end