What is the current workflow to debug Travis builds locally?

Question

One used to be able to download Vagrant boxes to debug Travis builds (for GitHub projects for instance). Apparently, this is no longer possible, so how do people currently debug

Answer 1

Unfortunately, there is no good solution for testing travis-ci builds locally at the moment. The closest thing I can recommend is a Ubuntu 12.04 vagrant vm and to provision it with the Travis chef cookbooks from here. This will solve most use cases as most of the time the test failures are not from the travis software (Though when it is you're in tough luck, as most Travis software depends on the other pieces of Travis software, making it fairly difficult to set up) but from the underling OS (Ubuntu) and software such as ruby and ruby gems.