tern.py 文件源码

def start_server(project):
  if not tern_command: return None
  if time.time() - project.last_failed < 30: return None
  env = None
  if platform.system() == "Darwin":
    env = os.environ.copy()
    env["PATH"] += ":/usr/local/bin"
  proc = subprocess.Popen(tern_command + tern_arguments, cwd=project.dir, env=env,
                          stdin=subprocess.PIPE, stdout=subprocess.PIPE,
                          stderr=subprocess.STDOUT, shell=windows)
  output = ""

  while True:
    line = proc.stdout.readline().decode("utf-8")
    if not line:
      sublime.error_message("Failed to start server" + (output and ":\n" + output))
      project.last_failed = time.time()
      return None
    match = re.match("Listening on port (\\d+)", line)
    if match:
      project.proc = proc
      return int(match.group(1))
    else:
      output += line