class Appsignal::Config

def log_file_path
  path = config_hash[:log_path] || root_path && File.join(root_path, "log")
  if path && File.writable?(path)
    return File.join(File.realpath(path), "appsignal.log")
  end
  system_tmp_dir = self.class.system_tmp_dir
  if File.writable? system_tmp_dir
    $stdout.puts "appsignal: Unable to log to '#{path}'. Logging to "\
      "'#{system_tmp_dir}' instead. Please check the "\
      "permissions for the application's (log) directory."
    File.join(system_tmp_dir, "appsignal.log")
  else
    $stdout.puts "appsignal: Unable to log to '#{path}' or the "\
      "'#{system_tmp_dir}' fallback. Please check the permissions "\
      "for the application's (log) directory."
  end
end