Questions about New Module by Baseline Profile Generator on Android Studio Iguana

[Kane-Shih]

Env:

• Android Studio

Android Studio Iguana | 2023.2.1 Patch 1
Build #AI-232.10300.40.2321.11567975, built on March 13, 2024
Runtime version: 17.0.9+0-17.0.9b1087.7-11185874 aarch64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 14.2.1
GC: G1 Young Generation, G1 Old Generation
Memory: 16384M
Cores: 10
Metal Rendering is ON
Registry:
    ide.instant.shutdown=false
    ide.experimental.ui=true

Non-Bundled Plugins:
    com.github.copilot (1.5.1.5285)

• Project

AGP 8.2.0
Gradle 8.2
Kotlin 1.9.20
BaselineProfile 1.2.3
profileInstaller 1.3.1

modules: `app`, total: 1

Question 1

(1) My app has 3 build types and 3 product flavors, thus there're 9 build variants.

build types: debug, internal, release
product flavors(region): us, eu, tw; Each of them has an unique application ID.

(2) My app uses plugin com.google.gms.google-services so there're 9 google-play-services.json files for each variant.

(3) After created a new baselineprofile module by Baseline Profile Generator on Android Studio Iguana (to :app:baselineprofile), it added NonMinified and Benchmark for non-debug builds, so I got 12(=(3-1)x3x2) more build variants.

Because of (2)+(3), I'll need to create 12 more folders for new variants to place each google-play-services.json file.

Example

• /app/src/usNonMinifiedInternal/google-play-services.json
• /app/src/usNonMinifiedRelease/google-play-services.json
• /app/src/usBenchmarkInternal/google-play-services.json
• /app/src/usBenchmarkRelease/google-play-services.json

Otherwise the error is

• What went wrong:
  Execution failed for task ':app:processUsNonMinifiedInternalGoogleServices'.
  File google-services.json is missing.
  The Google Services Plugin cannot function without it.
  Searched locations: ...

Is it expected? Any suggestions?

Question 2

The generator in Android Studio created baselineprofile under app with a build.gradle.kts which defined productFlavors(us/eu/tw), but didn't define buildTypes(debug/internal/release). So the error message is like this:

Could not determine the dependencies of task ':app:mergeUsInternalBaselineProfile'.
Could not resolve all task dependencies for configuration ':app:usInternalBaselineProfile'.
Could not resolve project :app:baselineprofile.
Required by:
project :app
> No matching variant of project :app:baselineprofile was found. The consumer was configured to find a component for use during 'baselineProfile', preferably optimized for Android, as well as attribute 'com.android.build.api.attributes.BuildTypeAttr' with value 'internal', attribute 'com.android.build.api.attributes.ProductFlavor:region' with value 'us', attribute 'androidx.baselineprofile.gradle.configuration.attribute.BaselineProfilePluginAgpVersionAttr' with value '8.2.0', attribute 'androidx.baselineprofile.gradle.configuration.attribute.BaselineProfilePluginVersionAttr' with value 'alpha1' but:
...

Question 3

mergeIntoMain must be in app/build.gradle.kts instead of app/baselineprofile/build.gradle.kts, is it expected?
It seems reasonable, just doesn't mention in https://developer.android.com/topic/performance/baselineprofiles/configure-baselineprofiles#generate-for-variants
There are many build.gradle.kts files in a repo, and sometimes the doc doesn't specify.

Question 4

In StartupBenchmarks.kt and BaselineProfileGenerator.kt, the package name is hardcoded. What's the recommendation for multiple apps? By separating src folders?

Thanks :D