An Android app

You can release an Android app from a monorepo using Gradle builds driven by the computed version. This setup requires a monotonic versionCode and attaches a bundle to the GitHub release.

Gradle projects fit the same build and publish slots as every other ecosystem. Pass the version through environment variables into your Gradle properties. The publish step for an app is whatever your delivery requires, like a Play upload, an artifact repository, or an APK attached to a GitHub release.

{
  "scripts": {
    "build": "../../gradlew -p . assembleRelease -PversionName=$DISPAT_NEW_VERSION",
    "publish": "../../gradlew -p . publishReleaseBundle -PversionName=$DISPAT_NEW_VERSION"
  },
  "spaces": {
    "apps": {
      "path": "android",
      "flow": {
        "build": "build",
        "publish": "publish"
      }
    }
  }
}

Keep two Gradle-specific details in mind:

• Scripts run inside the package folder, which is android/<app> in this example. Call the Gradle wrapper at the repository root by going two levels up with ../../gradlew.
• The versionCode must be a monotonically increasing integer. Derive this directly from the semantic version in your script. Compute -PversionCode=$((MAJOR * 10000 + MINOR * 100 + PATCH)) using $DISPAT_NEW_VERSION.

Attach the built bundle to the GitHub release by exporting it as an asset from the build script:

echo "DISPAT_EXPORT_GITHUB=$PWD/app/build/outputs/bundle/release/app-release.aab" >> "$DISPAT_OUTPUT"