puppetlabs/puppet — pull request #3086 by cprice404 (2014-09-12 00:00:35+00:00)
Title: (PUP-3236) Support PUPPET_LOADED env var in Gemfile

This commit adds support for an environment variable, PUPPET_LOADED,
to be set during bundle installation. If set, the variable will
prevent the puppet gem from being loaded; the use case is for test
environments where you already have puppet available on the load path.