Action should use existing Gradle wrapper distributions for cache-cleanup where possible

[stefan-rademacher-tk]

Hi.

We are using the setup-gradle action with the default configuration 'gradle-version: wrapper'.

In the section ‘Post Setup Gradle’, the action tries to download Gradle 8.11 from services.gradle.org, even though we have a Gradle Wrapper configuration with Gradle 8.10.2 (from an on-premise webserver) configured:

Provision Gradle >= 8.11
Gradle distribution 8.11 not found in cache. Will download. 
Downloaded https://services.gradle.org/distributions/gradle-8.11-bin.zip to /__w/_temp/.gradle-actions/gradle-installations/downloads/gradle-8.11-bin.zip (size 136917193)
…

This doesn't work in our corporate network, since the proxy slows down the download drastically.

Would be nice, if ...

1. ...either the Gradle Wrapper configuration could be found and reused for cache cleanup
2. ...or the download URL would be configurable.

The first option seems more appealing to me.

This issue is related to #436.

Thank you, Stefan

[bigdaz]

Thanks for reporting. As a workaround, is it possible to pre-install Gradle >= 8.11 on the runners? If cache-cleanup finds Gradle on the PATH, then no download will be necessary.

I agree that re-using existing wrapper distributions would be the optimal solution, but it's not clear when we'll have time to implement this.

[stefan-rademacher-tk]

Thanks for providing the workaround. We'll consider that.

[bigdaz]

@stefan-rademacher-tk You may have seen that this issue has been resolved. This is done by re-using known an existing wrapper executable for cache-cleanup, assuming that it meets the minimum version requirements (>= 8.11 and at least as new as the newest version that executed a build during the Job).

While this has not yet been released, it would be great if you could try out a pre-release version to ensure that it solves your problem:

• Update the wrapper for your project to at least 8.11
• In your workflow reference gradle/actions/setup-gradle@main
• Ensure that the runner doesn't have 8.11 (or newer) pre-installed. (This is the workaround noted above).

To verify that it's working, check for a message like this in the action logs.

Thanks!

[stefan-rademacher-tk]

Hi. I could successfully avoid the download:

Provision Gradle >= 8.12.1
  Gradle version 8.12.1 is available at /__w/setup-gradle-test/setup-gradle-test/gradlew and >= 8.12.1. Not installing.

Thank you for fixing this so quickly!