Update ProGuard rules for Toothpick 3.0 and KTP

Hi, I’m migrating from TP 2.1.0 to TP 3.0 and I’ve noticed that some ProGuard rules need updating if you’re using @InjectConstructor and KTP delegates instead of @Inject-annotated properties. I didn’t find any info about this in the documentation so I’m posting it here.

The following seems to be working for me:

-keepnames @toothpick.InjectConstructor class *
-keepclasseswithmembernames class * { toothpick.ktp.delegate.* *; }
-keepclassmembers class * {
    toothpick.ktp.delegate.* *;
}

in addition to already defined rules. Note: I’m using that on top of the rules mentioned in #330

[RumataEstorish]

When migrating to gradle plugin 7.0 had to add -keep @javax.inject.Qualifier public class * to keep qualifiers working

[dimsuz]

By the way, are there any plans to put proguard rules inside the library jar’s resources? Android’s new shrinker R8 (now default) supports this, so even clients who do not use smoothie will receive them, no need for manual addition and supporting wiki page. Moshi, okhttp, retrofit use this feature, it’s working great.

Maybe I’ll create a PR one day, but currently rather busy, so at least keep this in mind, iirc this isn’t a complex thing to do.