A Homebrew tap for Artsy scripts.
Tap this repository:
$ brew tap artsy/formulas
Install the packages it contains like any other Homebrew package:
$ brew install copy_env
To update this repo with a new version of a particular formula start by updating the URL to the package. Once you've done that, comment out the SHA line and then run a fetch command:
$ brew fetch --force Formula/deploy_pr.rb
You'll get a warning because the SHA was blank, but then it'll also print out the SHA that it found - you can then copy/paste that into the Ruby file.