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If you'd like to submit a patch:

  1. Fork the project.
  2. Make your feature addition or bug fix.
  3. Add tests for it. This is important so that it isn't broken in a future version unintentionally.
  4. Commit. Do not touch any unrelated code, such as the gemspec or version. If you must change unrelated code, do it in a commit by itself, so that it can be ignored.
  5. Send a pull request.


Install prerequisites

Install git on your test system.

Install the latest version of Bundler

$ gem install bundler

Clone the project

$ git clone git://

and run:

$ cd berkshelf
$ bundle install

Bundler will install all gems and their dependencies required for testing and developing.

Running unit (RSpec) and acceptance (Cucumber) tests

We use Chef Zero - an in-memory Chef Server for running tests. It is automatically managed by the Specs and Cukes. Simply run:

$ bundle exec guard start

See here for a quick way to get a testing chef server up.

Debugging Issues

By default, Berkshelf will only give you the top-level output from a failed command. If you're working deep inside the core, an error like:

Berkshelf Error: wrong number of arguments (2 for 1)

isn't exactly helpful...

Specify the BERKSHELF_DEBUG flag when running your command to see a full stack trace and other helpful debugging information.

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