Add support for R8-based minization#2077
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| /** Use R8 to minimize the shadowed JAR and configure its options. */ | ||
| public fun r8(action: Closure<*>) |
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We don't have to expose Closure.
| import org.gradle.api.tasks.PathSensitivity | ||
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| /** Minimal R8 configuration for [ShadowJar.minimize]. */ | ||
| public interface R8Spec { |
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Should we mark DslMarker for r8 blocks?
| val rulesFile = r8Dir.resolve("rules.pro") | ||
| val r8Output = r8Dir.resolve("output.jar") | ||
| val normalizedOutput = r8Dir.resolve("normalized-output.jar") | ||
| val javaHome = System.getProperty("java.home") |
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Should we support Java toolchian like JavaExec?
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This was attempted once or twice in the past on this project before the move, but attempted again here. This adds support for R8-based minimization, which is much more thorough and configurable than the default unused shrinker. This also allows for extra configuration to optimize, obfuscate, etc.
Full usage docs are in the README additions here. The default behavior is purely just tree-shaking. This also allows for the addition of other tools in the future too.
Disclosure: I did use AI to move through some of the boilerplate here, but manually de-fluffed and cleaned things up after too. Much of it was based on my use of R8 manually in another project here: https://github.com/ZacSweers/MoshiX/blob/main/moshi-ir/moshi-kotlin-tests/build.gradle.kts#L18