删除staging.rb和production.rb之间的重复

Question

我有一个用于我的Rails应用程序的暂存和生产环境(在Heroku上运行).目前,staging.rb和production.rb中有很多东西,我必须在每个文件中单独定义,例如:

  # Code is not reloaded between requests
  config.cache_classes = true

  # Full error reports are disabled and caching is turned on
  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true

  # Disable Rails's static asset server (Apache or nginx will already do this)
  config.serve_static_assets = false

  # Compress JavaScripts and CSS
  config.assets.compress = true

  # Don't fallback to assets pipeline if a precompiled asset is missed
  config.assets.compile = false

  # Generate digests for assets URLs
  config.assets.digest = true

事实并非如此DRY.有没有一种优雅的方法可以有效地将设置从production.rb导入到staging.rb中,然后只是覆盖我希望为登台环境更改的设置？

Answer 1

我过去所做的是拥有一个包含共享设置的文件,然后在生产和登台环境文件中需要这个.这很有效,因为它允许您在一个位置定义常用设置,然后在单个文件中定义唯一设置:

配置/环境/ shared_production.rb

MyApp::Application.configure do
  # Code is not reloaded between requests
  config.cache_classes = true

  # Full error reports are disabled and caching is turned on
  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true
end

配置/环境/ production.rb

require Rails.root.join('config/environments/shared_production')

MyApp::Application.configure do
  # Raise exception on mass assignment protection for Active Record models
  config.active_record.mass_assignment_sanitizer = :logger

  # Url to be used in mailer links
  config.action_mailer.default_url_options = { :host => "production.com" }
end

配置/环境/ staging.rb

require Rails.root.join('config/environments/shared_production')

MyApp::Application.configure do
  # Raise exception on mass assignment protection for Active Record models
  config.active_record.mass_assignment_sanitizer = :strict

  # Url to be used in mailer links
  config.action_mailer.default_url_options = { :host => "mysite-dev.com" }
end