Add APK signing configuration for valid package installation

.github/workflows/build.yml

@@ -36,6 +36,23 @@ jobs:
           echo "VERSION_NAME=$VERSION_NAME" >> $GITHUB_ENV
           echo "APP_VERSION=$VERSION_NAME" >> $GITHUB_OUTPUT
 
+      # Setup keystore directory
+      - name: Setup keystore directory
+        run: mkdir -p app/keystore
+
+      # Generate a keystore for signing
+      - name: Generate keystore
+        run: |
+          keytool -genkey -v -keystore app/keystore/release.keystore -storepass android -alias release -keypass android -keyalg RSA -keysize 2048 -validity 10000 -dname "CN=TetriStats,O=Accidental Productions,L=Unknown,C=US"
+
+      # Set environment variables for signing
+      - name: Set signing environment variables
+        run: |
+          echo "KEYSTORE_PASSWORD=android" >> $GITHUB_ENV
+          echo "KEY_ALIAS=release" >> $GITHUB_ENV
+          echo "KEY_PASSWORD=android" >> $GITHUB_ENV
+
+      # Build a signed release APK
       - name: Build Release APK
         run: ./gradlew assembleRelease
 
@@ -46,13 +63,13 @@ jobs:
         if: startsWith(github.ref, 'refs/tags/')
         run: |
           mkdir -p renamed_apk
-          cp app/build/outputs/apk/release/app-universal-release-unsigned.apk renamed_apk/TetriStats-${{ env.VERSION_NAME }}.apk
+          cp app/build/outputs/apk/release/app-universal-release.apk renamed_apk/TetriStats-${{ env.VERSION_NAME }}.apk
 
       - name: Rename APK for push release
         if: ${{ !startsWith(github.ref, 'refs/tags/') && github.event_name == 'push' }}
         run: |
           mkdir -p renamed_apk
-          cp app/build/outputs/apk/release/app-universal-release-unsigned.apk renamed_apk/TetriStats-${{ env.VERSION_NAME }}-${{ github.run_number }}.apk
+          cp app/build/outputs/apk/release/app-universal-release.apk renamed_apk/TetriStats-${{ env.VERSION_NAME }}-${{ github.run_number }}.apk
 
       - name: Upload APK as artifact for tag release
         if: startsWith(github.ref, 'refs/tags/')

app/build.gradle.kts

@@ -27,6 +27,16 @@ android {
         }
     }
 
+    signingConfigs {
+        create("release") {
+            // These values will be replaced during the GitHub Actions build
+            storeFile = file("keystore/release.keystore")
+            storePassword = System.getenv("KEYSTORE_PASSWORD") ?: "android"
+            keyAlias = System.getenv("KEY_ALIAS") ?: "release"
+            keyPassword = System.getenv("KEY_PASSWORD") ?: "android"
+        }
+    }
+
     buildTypes {
         release {
             isMinifyEnabled = false
@@ -34,7 +44,10 @@ android {
                 getDefaultProguardFile("proguard-android-optimize.txt"),
                 "proguard-rules.pro"
             )
-            // Make release version debuggable for now (helps with troubleshooting)
+            isDebuggable = false
+            signingConfig = signingConfigs.getByName("release")
+        }
+        debug {
             isDebuggable = true
         }
     }