Prepare Gradle build scripts for new publish CI

- Removes proguard (unused)
- Make output APK name consistent with jellyfin-android
- Add versionTxt task
- Add release signing configuration

app/build.gradle.kts

@@ -15,6 +15,7 @@ android {
 		// Release version
 		versionName = project.getVersionName()
 		versionCode = getVersionCode(versionName!!)
+		setProperty("archivesBaseName", "jellyfin-androidtv-v$versionName")
 	}
 
 	buildFeatures {
@@ -31,18 +32,26 @@ android {
 	}
 
 	buildTypes {
-		getByName("release") {
+		val release by getting {
 			isMinifyEnabled = false
-			proguardFiles(getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro")
 
 			// Add applicationId as string for XML resources
 			resValue("string", "app_id", "org.jellyfin.androidtv")
 
 			// Set flavored application name
 			resValue("string", "app_name", "@string/app_name_release")
+
+			signingConfig = createReleaseSigningConfig()?.let { config ->
+				signingConfigs.create("release") {
+					storeFile = config.storeFile
+					storePassword = config.storePassword
+					keyAlias = config.keyAlias
+					keyPassword = config.keyPassword
+				}
+			}
 		}
 
-		getByName("debug") {
+		val debug by getting {
 			// Use different application id to run release and debug at the same time
 			applicationIdSuffix = ".debug"
 
@@ -53,15 +62,15 @@ android {
 			resValue("string", "app_name", "@string/app_name_debug")
 		}
 	}
+}
 
-	applicationVariants.all {
-		val variant = this
-		variant.outputs.all {
-			val output = this as com.android.build.gradle.internal.api.BaseVariantOutputImpl
-			output.outputFileName = output.outputFileName
-				.replace("app-", "jellyfin-androidtv_")
-				.replace(".apk", "_v${variant.versionName}.apk")
-		}
+val versionTxt by tasks.registering {
+	val path = buildDir.resolve("version.txt")
+
+	doLast {
+		val versionString = "v${android.defaultConfig.versionName}=${android.defaultConfig.versionCode}"
+		logger.info("Writing [$versionString] to $path")
+		path.writeText("$versionString\n")
 	}
 }
 

app/proguard-rules.pro

@@ -1,17 +0,0 @@
-# Add project specific ProGuard rules here.
-# By default, the flags in this file are appended to flags specified
-# in C:\Users\Eric\AppData\Local\Android\android-sdk/tools/proguard/proguard-android.txt
-# You can edit the include path and order by changing the proguardFiles
-# directive in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# Add any project specific keep options here:
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}

buildSrc/src/main/kotlin/Signing.kt

@@ -0,0 +1,43 @@
+import org.gradle.api.Project
+import java.io.File
+import java.util.*
+
+fun Project.createReleaseSigningConfig(): SigningConfigData? {
+	val serializedKeystore = getProperty("keystore") ?: return null
+	val storeFile = File.createTempFile("jf", "keystore").apply {
+		writeBytes(Base64.getDecoder().decode(serializedKeystore))
+	}
+
+	val storePassword = getProperty("keystore.password") ?: return null
+	val keyAlias = getProperty("key.alias") ?: return null
+	val keyPassword = getProperty("key.password") ?: return null
+
+	return SigningConfigData(
+		storeFile,
+		storePassword,
+		keyAlias,
+		keyPassword
+	)
+}
+
+data class SigningConfigData(
+	/**
+	 * Store file used when signing.
+	 */
+	val storeFile: File,
+
+	/**
+	 * Store password used when signing.
+	 */
+	val storePassword: String,
+
+	/**
+	 * Key alias used when signing.
+	 */
+	val keyAlias: String,
+
+	/**
+	 * Key password used when signing.
+	 */
+	val keyPassword: String,
+)