Homebrew tap (public github repo) to allow to install grails 2.4.2
$ brew install 365smart/homebrew-grails242/grails242
Based on: https://docs.brew.sh/How-to-Create-and-Maintain-a-Tap
The old way of installing using https url is not working anymore
$ brew install https://raw.githubusercontent.com/365smart/homebrew-versions/master/grails242.rb
fatal: 'origin' does not appear to be a git repository
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
fatal: invalid upstream 'origin/master'
Error: Calling Non-checksummed download of grails242 formula file from an arbitrary URL is disabled! Use 'brew extract' or 'brew create' and 'brew tap-new' to create a formula file in a tap on GitHub instead.