获取 Ruby 异常的调用者的调用者

发布于 2024-12-11 00:27:44 字数 512 浏览 0 评论 0原文

现在我们的应用程序正在 Heroku 上运行，为了节省重新启动和可能的延迟，应用程序被设计为缓存所有错误并将它们发送到 stderr，并仅提供陈旧的缓存，直到问题通过另一次推送解决。这可以防止应用程序被删除...

但是，日志不断地填充我们不想要的整个跟踪，因此我构建了一个小片段（部分从 Rails 中窃取）来解析调用者并仅发送该行，但是使用从救援中发送错误，我们得到了错误的线路，所以我想知道如何才能找到呼叫者或呼叫者，或者是否有更好的方法来处理这种情况。这是片段：

module StdErr
  def error(message)
    file = 'Unknown'
    line = '0'

    if /^(.+?):(\d+)(?::in `(.*)')?/ =~ caller[1]
      file = $1
      line = $2
    end

    $stderr.puts "ERROR: #{message} on line #{line} of #{file}"
  end
end

原文

Right now our application is running on Heroku, and in order to save restarts and possible latency the application is designed to cache all errors and send them to stderr and just server a stale cache until the issue is resolved by another push. This prevents application takedown...

However, the logs keep filling up excessively with entire traces which we don't want, so I built a little snippet (that is partially stolen from Rails) to parse caller and only send that line, however with errors being sent from a rescue, we get the wrong line so I was wondering how I could get the caller or the caller or if there was a better way to handle this situation. Here is the snippet:

module StdErr
  def error(message)
    file = 'Unknown'
    line = '0'

    if /^(.+?):(\d+)(?::in `(.*)')?/ =~ caller[1]
      file = $1
      line = $2
    end

    $stderr.puts "ERROR: #{message} on line #{line} of #{file}"
  end
end

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ˉ厌 2024-12-18 00:27:44

如果我明白了，你想引发一个异常，并从调用者的调用者开始进行回溯。这样做：

def raise_cc(*args)
  raise(*args)
rescue Exception
  # Raises the same exception, removing the last 2 items
  # from backtrace (this method and its caller). The first
  # will be the caller of the caller of this method.
  raise($!.class, $!.message, $!.backtrace[2..(-1)])
end

If I get it, you want to raise a exception with a backtrace that begins on the caller of the caller. Do it:

def raise_cc(*args)
  raise(*args)
rescue Exception
  # Raises the same exception, removing the last 2 items
  # from backtrace (this method and its caller). The first
  # will be the caller of the caller of this method.
  raise($!.class, $!.message, $!.backtrace[2..(-1)])
end

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