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cloudfoundry / java-buildpack

Cloud Foundry buildpack for running Java applications
Apache License 2.0
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Bring your own Ruby #995

Closed ryanmoran closed 1 year ago

ryanmoran commented 1 year ago

Before the cflinuxfs4 stack becomes the default in CF, we will be removing the ruby interpreter from the set of installed packages. This means that the Java buildpack will need to bring its own interpreter in order to keep running on Ruby.

This PR contains a small bash shim that sits in front of each of the buildpack bin/* executables. The shim makes sure that there is an installed Ruby interpreter in a predefined location and then execs the equivalent Ruby entrypoint for the buildpack.

The buildpack packaging and configuration have been slightly modified to allow for this to work both online and offline.

The buildpack will run with the latest Ruby 3.1.x version available in the Ruby Buildpack repository.

ryanmoran commented 1 year ago

As I was merging a number of other PRs, the tab I had open with this PR got mixed in the shuffle and I accidentally pushed the big green button without thinking. I have already reverted the commit on main and I've opened the PR again over here: https://github.com/cloudfoundry/java-buildpack/pull/1000. 😬