An extension, intended for use with Maven > 3.3.9, that set a property for use in the version.

To use this, put a file named "version-policy.txt" in the project root, containing a line of the form:

PROPERTY=VALUE

for example:

revision=${timestamp}

VALUE can contain ${timestamp} or ${commit}. Then declare this extension in .mvn/extensions.xml as follows:

<?xml version="1.0" encoding="UTF-8"?>
<extensions>
    <extension>
        <groupId>com.basistech</groupId>
        <artifactId>auto-version-maven-extension</artifactId>
        <version>0.0.1</version>
    </extension>
</extensions>

In the POM, use the property in the <version/> element:

     <version>0.0.${revision}</version>