android-cloud-check: RUNS_ON, in-job Android SDK, Kotlin/Native cache

[ssestak]

Summary

Three optional inputs on android-cloud-check.yml so a consumer can run the Android lint + test gate on self-hosted macOS runners whose image has no Android SDK. Defaults keep today's behaviour (ubuntu-latest, no SDK step, no K/N cache).

Changes

• RUNS_ON (string, default ubuntu-latest): runner label for the job.
• ANDROID_SDK_PACKAGES (string, default empty): when set, android-actions/setup-android@v3 installs the SDK in the job with these packages and accepts the licences.
• KOTLIN_NATIVE_CACHE (boolean, default false): actions/cache on ~/.konan/dependencies, keyed by libs.versions.toml - on macOS the KMP toolchain otherwise downloads LLVM + libffi (~1 min) on every fresh runner.

Diagram

Job steps with the new optional ones

flowchart LR
  C["Checkout"] --> E["android-setup-environment<br/>Java · Gradle · Ruby"]
  E --> S{"ANDROID_SDK_PACKAGES set?"}
  S -- yes --> SDK["android-actions/setup-android<br/>packages + licences"] --> K
  S -- no --> K{"KOTLIN_NATIVE_CACHE?"}
  K -- yes --> KC["actions/cache ~/.konan/dependencies"] --> R
  K -- no --> R["android-check<br/>lint → tests → Danger"]
  RO(["runs-on: RUNS_ON<br/>default ubuntu-latest"]) -.-> C

Loading

Notes

• Measured in futuredapp/tetadrogerie-kmp on a self-hosted M4 VM (4 cores, 14 GB, no SDK in the image): SDK install 18 s, lintCheck 6.5 min, unit tests 1.7 min, versus 19 + 7 min on ubuntu-latest. Consumer side: futuredapp/tetadrogerie-kmp draft PR (linked from there as blocked on this).
• Platform package names follow the new SDK scheme (platforms;android-37.0, not android-37).
• Follow-up candidate: the same RUNS_ON on android-cloud-nightly-build.yml.

🤖 Generated with Claude Code

https://claude.ai/code/session_01L9gziD9cVTJLX1oB8ZL73c

[ssestak]

Consumer side, blocked on this: futuredapp/tetadrogerie-kmp#609 (pins this branch, switches to @2.5.0 after release).