Provide method to get relative file path from InputFileDetails

[eriwen]

Plugin authors like myself need incremental tasks that preserves source directory structure in the output.

For example:

Input

style.css
vendor/bootstrap.css

Output

$buildDir/style.min.css
$buildDir/vendor/bootstrap.min.css

I would like this test to pass using IncrementalTaskInputs. See here also.

[adammurdoch]

I would add methods to ask for filtered FileCollection and FileTree instances, that contain the changed/added/removed input files. This way, I can use the same APIs to iterate over the input for both incremental and non-incremental execution.

I would avoid just adding more stuff to InputFileDetails.

[stale]

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[stale]

This issue has been automatically closed due to inactivity. If you can reproduce this on a recent version of Gradle or if you have a good use case for this feature, please feel free to reopen the issue with steps to reproduce, a quick explanation of your use case or a high-quality pull request.