chore(build): migrate to AGP 9 + Gradle 9 + compileSdk 37

.github/workflows/ci.yml

@@ -60,6 +60,16 @@ jobs:
       - name: Make gradlew executable
         run: chmod +x ./gradlew
 
+      # compileSdk 37 (Android 16) is new enough that the runner image may not preinstall its
+      # platform. Accept licenses and install it explicitly so the build does not depend on which
+      # SDK packages happen to be baked into ubuntu-latest. Build-tools are left to AGP's auto-
+      # download (licenses are accepted above), matching what it resolves locally.
+      - name: Install Android SDK platform 37
+        run: |
+          sdkmanager="${ANDROID_SDK_ROOT:-$ANDROID_HOME}/cmdline-tools/latest/bin/sdkmanager"
+          yes | "$sdkmanager" --licenses >/dev/null 2>&1 || true
+          "$sdkmanager" "platforms;android-37.0"
+
       - name: ktlint, Android Lint, unit tests, debug assembly
         run: ./gradlew ktlintCheck lint test assembleDebug --stacktrace
 # Release signing, APK/SHA256SUMS publishing, F-Droid metadata and release-please live in

.github/workflows/release.yml

@@ -40,6 +40,14 @@ jobs:
       - name: Make gradlew executable
         run: chmod +x ./gradlew
 
+      # compileSdk 37 (Android 16) may not be preinstalled on the runner image; install it
+      # explicitly so the release build does not depend on the baked-in SDK packages.
+      - name: Install Android SDK platform 37
+        run: |
+          sdkmanager="${ANDROID_SDK_ROOT:-$ANDROID_HOME}/cmdline-tools/latest/bin/sdkmanager"
+          yes | "$sdkmanager" --licenses >/dev/null 2>&1 || true
+          "$sdkmanager" "platforms;android-37.0"
+
       - name: Decode signing keystore
         env:
           SIGNING_KEY_BASE64: ${{ secrets.SIGNING_KEY_BASE64 }}

app/build.gradle.kts

@@ -61,7 +61,7 @@ val appVersionCode =
 
 android {
     namespace = "org.searchmob"
-    compileSdk = 36
+    compileSdk = 37
 
     defaultConfig {
         applicationId = "org.searchmob"

gradle.properties

@@ -4,3 +4,12 @@ org.gradle.configuration-cache=true
 android.useAndroidX=true
 android.nonTransitiveRClass=true
 kotlin.code.style=official
+
+# AGP 9 ships built-in Kotlin support and a new DSL on by default, which is incompatible with the
+# standalone `org.jetbrains.kotlin.android` plugin this project applies (alongside the matching
+# Compose and serialization compiler plugins pinned to our Kotlin version). Opt out for now so the
+# existing, working Kotlin toolchain keeps driving compilation on AGP 9; adopting built-in Kotlin
+# (and aligning the Compose/serialization plugin versions to AGP's bundled Kotlin) is a follow-up
+# that must land before AGP 10 removes this opt-out.
+android.builtInKotlin=false
+android.newDsl=false

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
-agp = "8.13.2"
+agp = "9.2.1"
 kotlin = "2.4.0"
-coreKtx = "1.18.0"
+coreKtx = "1.19.0"
 activityCompose = "1.13.0"
 lifecycleRuntimeKtx = "2.10.0"
 composeBom = "2024.12.01"

gradle/wrapper/gradle-wrapper.properties

@@ -1,7 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionSha256Sum=6f74b601422d6d6fc4e1f9a1ab6522f642c2fdcbc15ae33ebd30ba3d7198e854
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.5-bin.zip
+distributionSha256Sum=2ab2958f2a1e51120c326cad6f385153bb11ee93b3c216c5fccebfdfbb7ec6cb
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME