Ruby on Rails：Bundler和Capistrano：指定在部署时要排除的组（开发，测试）

Question

The Bundler documentation says, that in order to install all necessary bundles when deploying via Capistrano, one need only insert

require 'bundler/capistrano' # siehe http://gembundler.com/deploying.html

in his deploy.rb. Then, upon deployment, Capistrano calls

  * executing "bundle install --gemfile .../releases/20110403085518/Gemfile \
    --path .../shared/bundle --deployment --quiet --without development test"

This works fine.

However, we have a staging setup on our production server, isolated from the real live site, where we test a new app release with (cloned and firewalled) live production data. There, we need test and development gems to be installed.

How do I specify the capistrano command line here? Are there parameters I can use, or do I need to set up my own capistrano task to overwrite Bundler's?

Thank you!

Answer 1

Writing different tasks would certainly keep it simple:

task :production do
  # These are default settings
  set :bundle_without, [:development, :test]
end

task :staging do
  set :bundle_without, [:test]
  # set :rails_env, 'staging'
end

However, if you want to use command line options you could switch on the supplied value:

cap deploy target=staging

And inside your deploy.rb file you could use the option value as:

if target == "staging"
  set :bundle_without, [:test]
  # do other stuff here
end

There's also a more 'proper' configuration object that you can use. I've found a reference to it here: http://ryandaigle.com/articles/2007/6/22/using-command-line-parameters-w-rake-and-capistrano

Answer 2

I think the cleanest way is to just add set :bundle_without in your deploy environment files using this:

https://github.com/capistrano/capistrano/wiki/2.x-Multistage-Extension

Answer 3

我没有独立确认的设置，但是RAILS_ENV ='development'可以得到它吗？