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POcan bundler be used in rsync deployments?
 

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  1. POcan bundler be used in rsync deployments?
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    <p><strong>Can you deploy a Rails3 app using Bundler's Gemfile WITHOUT running <code>bundle install</code>... i.e. just by copying a rails project directory to the appropriate dir within Apache/Passenger?</strong></p> <p>So, we have a legacy environment that was designed for internal projects during the Ruby1.8.6/Rails2 timeframe and it depends on copying your local rails directory to a network mount under Apache/Passenger. While this deployment model worked fine for Rails2 (with frozen gems, etc.), it breaks in many painful ways for Rails3 with Bundler.</p> <p>Specifically, I'm seeing gem dependency errors for gems in :test and :development groups even when deploying to :production. I found the following SO post helpful at first:</p> <ul> <li><a href="https://stackoverflow.com/questions/4438601/bundler-incorrectly-trying-to-install-development-and-test-group-gems-in-pro">bundler incorrectly trying to install &quot;development&quot; and &quot;test&quot; group gems in production</a></li> </ul> <p>So I executed <code>bundle install --without test development</code> on my local and then tried to manually copy .bundle/config from my directory to the network dir, but that didn't work. Bundler still tried to load the excluded gems.</p> <p>This is painful for us because we don't have admin privileges to install gems on these servers (i.e. we aren't allowed to ever run <code>bundle install</code> in any form). Likewise, the admins do not want to be bothered with deploying our apps every 5 mins since this is an internal prototyping site and not an external production site. They also don't want to run <code>bundle install</code> because they want tight control of which gems are deployed across all applications -- for example, some apps are still Rails2 based and don't use Bundler yet, so they may break if the wrong gem is installed.</p> <p>Is there any way to use Bundler in a passive/rsync way, or should we just redesign our environment to let developers run <code>bundle install</code> via capistrano or some such?</p> <p>Help?</p> <p>Thanks!</p> <hr> <p><strong>UPDATE:</strong> 1/18/2012: After investigating the reason for the :test and :development group errors some more, I <a href="http://www.modrails.com/documentation/Users%20guide%20Apache.html#bundler_support" rel="nofollow noreferrer">discovered</a> that Phusion Passenger actually executes <code>Bundle.setup()</code> before the Rails app gets a chance to in <code>boot.rb</code>. Without any arguments, <code>setup()</code> checks all gem dependencies, which means if it doesn't find a gem on the server, it will blow up in Passenger before it even gets a chance to load Rails.</p> <p>This particular 'bug' can only happen if you deploy via rsync or copy instead of running <code>bundle install --without test:development</code> on the target server. The majority of Rails3 apps are deployed with Capistrano, which does this step for you, and as such never encounter this particular edge case.</p> <p>So I'm afraid the only way to get 'groups' to work correctly in your gem file is to use <code>bundle install</code> as intended. This means we should change our deployment process!</p>
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    1. USLarry Kyrala
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    1. COdid you try to 'vendor' your bundle?
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    2. COnope, I can try that at work tomorrow. (rvm is flaking out on me at home so I can't try it here :P)
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      1. USLarry Kyrala
    3. COOk, I tried: `RAILS_ENV=production bundle install --without test deployment debug --path vendor/bundle`. Tried to deploy that and it fails with `NoMethodError (undefined method `init' for Mysql:Class):` mysql is in the gemset. oops, I checked and mysql is in the database.yml too. No dice.
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