Show compressed columns when compressed entries present

[Goooler]

It would be very helpful to add a CLI flag like --include-compressed (or allow toggling it) to control whether to show compressed diffs for JARs (and potentially AARs/AABs).

When diffing output .jar files produced by R8 or build tools, seeing the actual Zip compressed size impact alongside uncompressed sizes is valuable for measuring real-world download/storage impacts.

And I see you disabled the includeCompressed in 0d2eef7 for some reasons.

[JakeWharton]

Are these types even compressed? There's no real value in compressing them.

[Goooler]

Fair point! For Android build pipelines, JAR/AAR entries are just intermediate inputs that get dexed into the final APK, so their Zip compression ratio inside the AAR/JAR doesn't affect the final APK download size at all. I guess this is what you mean 'the compression used has no bearing on the end-user'?

However, standard .jar files produced by Gradle/R8 are Zip-compressed (DEFLATED) by default. For pure JVM libraries published to Maven Central, CLI tools, or standalone executable JARs, the compressed .jar is the actual distribution artifact downloaded over the network.

[JakeWharton]

I can see people perhaps opting to compress both jars and aars here soon due to the new Maven Central size requirements.

How about we change the logic to detect when any entries are non-STORE and then use that to choose whether to show the compressed section.

[Goooler]

My thought was to make includeCompressed default to true for all types (since JARs/AARs are typically compressed by default in AGP/Gradle), and provide a flag like --no-compressed (or --hide-compressed) to disable it if someone only wants to see uncompressed sizes. I observed that AGP compressed AAB as well, see:

• 8.0.0: https://github.com/Goooler/agp-sources/blob/0839a8e5ead11df9e8489a5aa4edda7e9d9cf984/8.0.0/com.android.tools.build/gradle/com/android/build/gradle/internal/tasks/FinalizeBundleTask.kt#L167-L193
• 9.3.1: https://github.com/Goooler/agp-sources/blob/d383e6c2d704f6f93397fceb9a424e0082dfa164/9.3.1/com.android.tools.build/gradle/com/android/build/gradle/internal/tasks/FinalizeBundleTask.kt#L154-L166

But detecting non-STORE sounds good to me.