Add a getter on ShadowCopyAction.ArchiveFileTreeElement to access the containing jar file name

[uhyonc]

Shadow Version

8.1.1

Gradle Version

7.5.3

Expected Behavior

Transformers should allow access to the Jar file path containing the FileTreeElement.
This is for implementing the method:
boolean canTransformResource(FileTreeElement element)
For example, I would like to be able to do something like

class MyTransformer implements Transformer {
    boolean canTransformResource(FileTreeElement element) {
        if (element instanceof com.github.jengelman.gradle.plugins.shadow.tasks.ShadowCopyAction.ArchiveFileTreeElement
            && element.classFile && element.jarFile.path.contains('grpc-core-1.19.0.jar')) {
            return false
        }
        return true 
    }
   ...
}

This is useful for allowing us custom mechanisms to override which classes to be used (e.g. when multiple dependencies have the same class files in it...).

Actual Behavior

ShadowCopyAction.ArchiveFileTreeElement is the actual implementation class passed as the element. However, this does not have any information on the containing jar file.

Gradle Build Script(s)

Content of Shadow JAR (jar tf <jar file> - post link to GIST if too long)

[uhyonc]

In fact, another issue is that ".class" files are not getting transformed... Actually I don't necessarily want it to be transformed, just a way to define the policy for which dependency gets priority when there are class file conflicts.

[uhyonc]

A similar request for Relocator as well... e.g. RelocatePathContext / RelocateClassContext should hold information about the dependency and/or the jar file it came from.