preparing the publication

composeApp/build.gradle.kts

@@ -2,6 +2,10 @@ import org.jetbrains.compose.desktop.application.dsl.TargetFormat
 import org.jetbrains.kotlin.gradle.ExperimentalWasmDsl
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 
+val appVersionName = "1.0"
+val appVersionCode = 1
+val appVersionDisplay = "$appVersionName.$appVersionCode"
+
 plugins {
     alias(libs.plugins.kotlinMultiplatform)
     alias(libs.plugins.androidApplication)
@@ -10,6 +14,38 @@ plugins {
     alias(libs.plugins.composeHotReload)
 }
 
+abstract class GenerateAppVersionConstantsTask : DefaultTask() {
+    @get:Input
+    abstract val versionName: Property<String>
+
+    @get:Input
+    abstract val versionCode: Property<Int>
+
+    @get:OutputDirectory
+    abstract val outputDir: DirectoryProperty
+
+    @TaskAction
+    fun generate() {
+        val outputFile = outputDir.file("net/sergeych/toread/AppVersion.kt").get().asFile
+        outputFile.parentFile.mkdirs()
+        outputFile.writeText(
+            """
+            package net.sergeych.toread
+
+            internal const val AppVersionName = "${versionName.get()}"
+            internal const val AppVersionCode = ${versionCode.get()}
+            internal const val AppVersionDisplay = "${versionName.get()}.${versionCode.get()}"
+            """.trimIndent() + "\n",
+        )
+    }
+}
+
+val generateAppVersionConstants by tasks.registering(GenerateAppVersionConstantsTask::class) {
+    versionName.set(appVersionName)
+    versionCode.set(appVersionCode)
+    outputDir.set(layout.buildDirectory.dir("generated/appVersion/commonMain/kotlin"))
+}
+
 kotlin {
     jvmToolchain(17)
 
@@ -33,6 +69,9 @@ kotlin {
     }
 
     sourceSets {
+        commonMain {
+            kotlin.srcDir(generateAppVersionConstants)
+        }
         androidMain.dependencies {
             implementation(libs.compose.uiToolingPreview)
             implementation(libs.androidx.activity.compose)
@@ -69,8 +108,8 @@ android {
         applicationId = "net.sergeych.toread"
         minSdk = libs.versions.android.minSdk.get().toInt()
         targetSdk = libs.versions.android.targetSdk.get().toInt()
-        versionCode = 1
-        versionName = "1.0"
+        versionCode = appVersionCode
+        versionName = appVersionName
     }
     packaging {
         resources {
@@ -100,7 +139,7 @@ compose.desktop {
         nativeDistributions {
             targetFormats(TargetFormat.Dmg, TargetFormat.Msi, TargetFormat.Deb)
             packageName = "To Read"
-            packageVersion = "1.0.0"
+            packageVersion = appVersionDisplay
 
             macOS {
                 iconFile.set(project.file("src/jvmMain/resources/icons/icon.icns"))