Incompatibility with `heroku-22` stack

[vietqhoang]

Problem

Heroku has released the heroku-22 stack. One of the major changes is removal of the system Ruby in the build.

Ruby must now be loaded by including the heroku/ruby buildpack in the Heroku app’s buildpack list.

This is an issue with this project due to the following line:

https://github.com/Kajabi/heroku-buildpack-shared-build-cache/blob/master/bin/compile#L32

A Ruby command is executed on line 32. Since the system Ruby is no longer present, this throws an error when the Heroku app is going through the build process.

Including the heroku/ruby buildpack in the buildpack list before this project will not work. The Ruby buildpack will execute Bundler install commands. This action removes the benefit of this project, where the cached bundled gems are loaded before this action happens.

Possible solutions

• Rewrite the Ruby line in Bash
• Rewrite the Ruby line in Python3