检测应用程序是否作为 HTTP 服务器启动(rake 任务、rconsole 等) [英] Detect if application was started as HTTP server or not (rake task, rconsole etc)

问题描述

我正在使用 EventMachine 和 Momentally 与我的 rails 应用程序一起启动 e TCP 服务器.这是从 config/initializers/momentively.rb 开始的.

I'm using EventMachine and Monetarily to start e TCP server along with my rails application. This is started from config/initializers/momentarily.rb.

我的问题是当我运行 rake 任务时它也会启动，比如 db:migrate.我只希望它在我启动 HTTP 服务器时启动.环境无济于事，因为服务器启动和 rake 任务都在开发环境下.有没有办法知道应用程序正在运行 HTTP 服务器而不是其他任何东西?请注意，这不仅是 rake 任务，如果我运行 Rails 控制台，EM 也会启动，这对我来说又是不可取的.

My problem is that it starts also when I run rake tasks, like db:migrate. I only want it to start when when I start the HTTP server. Environments won't help, since both the server start and rake tasks are under Development environment. Is there a way of knowing that the application is running the HTTP server as opposed to anything else? Note that is not only rake tasks, the EM starts also if I run the rails console, which is again something not desirable for my case.

推荐答案

据我所知，没有什么好的方法可以做到这一点.您可以复制 newrelic 的方法(检查 discover_dispatcher 在 local_environment.rb) 基本上有一个启发式列表，用于检测它是否跑在里面的乘客，瘦瘦的等

There's not a great way of doing this that I know of. You could copy newrelic's approach (check discover_dispatcher in local_environment.rb) which basically has a list of heuristics used to detect if it is running inside passenger, thin, etc.

为乘客检查

defined?(::PhusionPassenger)

细细检查

if defined?(::Thin) && defined?(::Thin::Server)

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