Add release sign config to action

.github/workflows/android.yml

@@ -16,6 +16,10 @@ jobs:
       run: |
         echo "GPR_USER=${{ github.actor }}" >> $GITHUB_ENV
         echo "GPR_KEY=${{ secrets.GITHUB_TOKEN }}" >> $GITHUB_ENV
+        echo "KEY_ALIAS=${{ secrets.KEY_ALIAS }}" >> $GITHUB_ENV
+        echo "KEY_PASSWORD=${{ secrets.KEY_PASSWORD }}" >> $GITHUB_ENV
+        echo "KEYSTORE_PASSWORD=${{ secrets.KEYSTORE_PASSWORD }}" >> $GITHUB_ENV
+        echo "KEYSTORE_BASE64=${{ secrets.KEYSTORE_BASE64 }}" >> $GITHUB_ENV
 
     - uses: actions/checkout@v4
     - name: set up JDK 17

app/build.gradle.kts

@@ -1,3 +1,5 @@
+import org.jose4j.base64url.Base64
+
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.jetbrains.kotlin.android)
@@ -17,9 +19,28 @@ android {
         versionName = "1.0.6"
     }
 
+    signingConfigs {
+        create("release") {
+            val env: MutableMap<String, String> = System.getenv()
+            keyAlias = env["KEY_ALIAS"]
+            keyPassword = env["KEY_PASSWORD"]
+
+            val base64keystore: String = env["KEYSTORE_BASE64"] ?: ""
+            val keystoreFile: File = File.createTempFile("keystore", ".jks")
+            if (base64keystore.isNotEmpty()){
+                keystoreFile.writeText(String(Base64.decode(base64keystore)))
+            }
+            storeFile = keystoreFile
+            storePassword = env["KEYSTORE_PASSWORD"]
+        }
+    }
     buildTypes {
-        release {
+        debug {
             isMinifyEnabled = false
+        }
+        release {
+            signingConfig = signingConfigs.getByName("release")
+            // isMinifyEnabled = false
             proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
         }
     }