Experimenting with using Travis CI for a Racket project.

Until Travis CI gets built-in support for Racket, we can use the before_install clause of .travis.yml to download and run the Racket installer.

CAVEAT: This downloads the ~75MB Racket installer and runs it for each and every build! In other words, this is a hack. The un-hack would be (IIUC) to add a Travis CI "cookbook" for Racket.

To add this capability to your project, simply add the example .travis.yml to your repo. You may need to change its script section's raco make and raco test parts.

Here's a "badge" showing the status for the master branch of this repo: