每次更改控制器后，都会自动重新启动Rails服务器

Question

在进行任何正常更改后，应该不需要重新启动Rails服务器。然而，当我对应用程序控制器进行一些小的更改时，如果我不重新启动服务器，它们就不会应用。即使我写了错误的代码并故意出错，旧的错误仍然存在。我如何更改或验证设置是否正确？

我在config/environment/development.rb file:

config.cache_classes = false

这对我不起作用。

udpate1:

development.rb

    Rails.application.configure do
  # Settings specified here will take precedence over those in config/application.rb.
  # In the development environment your application's code is reloaded on
  # every request. This slows down response time but is perfect for development
  # since you don't have to restart the web server when you make code changes.
  config.cache_classes = false
  # Do not eager load code on boot.
  config.eager_load = false
  # Show full error reports and disable caching.
  config.consider_all_requests_local       = true
  config.action_controller.perform_caching = false
  # Don't care if the mailer can't send.
  config.action_mailer.raise_delivery_errors = false
  # Print deprecation notices to the Rails logger.
  config.active_support.deprecation = :log
  # Raise an error on page load if there are pending migrations.
  config.active_record.migration_error = :page_load
  # Debug mode disables concatenation and preprocessing of assets.
  # This option may cause significant delays in view rendering with a large
  # number of complex assets.
  config.assets.debug = true
  # Asset digests allow you to set far-future HTTP expiration dates on all assets,
  # yet still be able to expire them through the digest params.
  config.assets.digest = true
  # Adds additional error checking when serving assets at runtime.
  # Checks for improperly declared sprockets dependencies.
  # Raises helpful error messages.
  config.assets.raise_runtime_errors = true
  # Raises error for missing translations
  # config.action_view.raise_on_missing_translations = true
end

Answer 1

您可以使用nodemon自动重新启动旧的rails应用程序。

1） 安装nodemon。

sudo npm install -g nodemon

2） 在根目录上创建nodemon.json文件并将其配置为

{
  "ignore": [
    ".git",
    "node_modules/**/node_modules"
  ],
  "watch": [
    "app/controllers/",
    "app/models/",
    "app/assets/",
    "config/",
    "db/"
  ],
  "ext": "rb yml js css scss"
}

3） 在根目录上创建rails.sh文件，以使用nodemon启动rails应用程序。

kill -9 `cat tmp/pids/server.pid`
echo "APP READY!!!"
echo "Ruby on Rails"
rails s -d

4） 授予rails.sh文件的权限。

sudo chmod +x rails.sh

5） 使用sh命令启动服务器。

nodemon -L --exec "./rails.sh"

注意：步骤已在mac机器上验证。不同的操作系统可能具有不同的命令或配置