[MWRAPPER-134] Provide a reliable way to determine the Maven Wrapper version

• Type: Improvement
• Status: Closed
• Priority: Normal
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.3.1
• Component/s: Maven Wrapper Plugin
• Assignee: Tamas Cservenak
• Reporter: Nils Breunese
• Created: 22/Apr/24 11:19
• Updated: 06/May/24 09:31
• Resolved: 22/Apr/24 16:16

Description

I use Renovate to automatically keep dependencies up-to-date and I noticed that the upgrade to Maven Wrapper 3.3.0 removed the wrapperUrl line from .mvn/wrapper/maven-wrapper.properties. I guess that is related to MWRAPPER-120.

A couple of my colleagues implemented the support for keeping Maven Wrapper up-to-date in Renovate, and I believe Renovate currently determines the version of Maven Wrapper based on the wrapperUrl property, so I think that logic may need to be updated after this change. Without the wrapperUrl property, I think currently the only option to determine the Maven Wrapper version is parsing the mvnw / mvnw.cmd scripts themselves, but that sounds like a clunky and unreliable way.

In a discussion on the maven-users mailinglist, the idea was posted to add a dedicated property for this (e.g. wrapperVersion), which can be read by external tools.

Issue Links

• relates to: MWRAPPER-120 Maven wrapper plugin should not create wrapperUrl property for script-only mode
• relates to: MWRAPPER-135 Provide a reliable way to determine the Maven Wrapper type
• links to: GitHub Pull Request #135