Support extracting shrinking rules for AAR's [394478509]

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Feature Request

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sg...@google.com

created issue #1

Feb 5, 2025 07:59AM

The experimental ExtractR8Rules does not support AAR's. Adding support for that should be simple.

From Targeted shrink rules it says that for an AAR, then if the classes.jar in the AAR does not result in any rules, then the proguard.txt from root of the AAR is used.

Opened issue 394472286 to clarify what happens if classes.jar has rules in META-INF/proguard as well (this is not explicit in the documentation).

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sg...@google.com <sg...@google.com> #2Feb 6, 2025 08:57AM

Thanks for the report and all the details. Are you only seeing these build speed issues on CI? What's the build speed like in local development?

It would be great if you could share the compiler dump file with christofferqa@google.com and ricow@google.com. A good starting point would be to check if there are any passes that take up an unusual amount of time.

Issue 394478509

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sg...@google.com <sg...@google.com> #2Feb 6, 2025 08:57AM

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