Use gson instead of kotlinx-serialization

build.gradle.kts

@@ -11,7 +11,6 @@ buildscript {
 
 plugins {
     kotlin("jvm") version "1.5.0"
-    kotlin("plugin.serialization") version "1.5.0"
     id("com.github.johnrengelman.shadow") version "6.1.0" apply false
     id("architectury-plugin") version "[3.0.100, 3.3["
     id("dev.architectury.loom") version "0.7.2.110" apply false
@@ -72,7 +71,7 @@ subprojects {
             exclude("**/*.kotlin_metadata")
             exclude("**/*.kotlin_builtins")
             exclude("META-INF/maven/**/*")
-            archiveClassifier.set("shadow")
+            archiveClassifier.set("shadow-${this@subprojects.name}")
         }
         val shadowJar = getByName("shadowJar") as ShadowJar
         val shrinkJar = register("shrinkJar", proguard.gradle.ProGuardTask::class) { group = this@subprojects.group as String
@@ -94,12 +93,7 @@ subprojects {
             adaptclassstrings()
             "$group.**".also { dontnote(it); dontwarn(it) }
 
-            // kotlinx-serialization related configuration:
+            dontwarn("kotlinx.serialization.**")
-            dontnote("kotlinx.serialization.AnnotationsKt")
-            keepclasseswithmembers("class kotlinx.serialization.json.** { kotlinx.serialization.KSerializer serializer(...); }")
-            keep(mapOf("includedescriptorclasses" to true), "class $group.snowygui.**$\$serializer { * ; }")
-            keepclassmembers("class $group.snowygui.** { *** Companion; }")
-            keepclasseswithmembers("class $group.snowygui.** { kotlinx.serialization.KSerializer serializer(...); }")
 
             val homeDir = System.getProperty("java.home") as String
             doFirst {
@@ -151,17 +145,13 @@ allprojects {
     **/
     apply(plugin = "java")
     apply(plugin = "org.jetbrains.kotlin.jvm")
-    apply(plugin = "org.jetbrains.kotlin.plugin.serialization")
     apply(plugin = "architectury-plugin")
     java {
         sourceCompatibility = JavaVersion.VERSION_11
     }
-    val serializationVer: String by rootProject
     dependencies {
         implementation(kotlin("stdlib-jdk8", kotlinVer))
         implementation(kotlin("reflect", kotlinVer))
-        implementation("$kotlinX:kotlinx-serialization-core:$serializationVer")
-        implementation("$kotlinX:kotlinx-serialization-json:$serializationVer")
         annotationProcessor("com.github.bsideup.jabel:jabel-javac-plugin:0.3.0") {
             listOf("byte-buddy", "byte-buddy-agent").forEach {
                 exclude(module = it)

common/src/main/kotlin/fr/username404/snowygui/Snowy.kt

@@ -1,5 +1,7 @@
 package fr.username404.snowygui
 
+import com.google.gson.Gson
+import com.google.gson.GsonBuilder
 import fr.username404.snowygui.EventSnowy.Companion.useKey
 import fr.username404.snowygui.config.Configuration.obtained
 import fr.username404.snowygui.misc.AddKeyMaps
@@ -10,6 +12,7 @@ import org.apache.logging.log4j.Logger
 abstract class Snowy {
     private val displayInitMessage: Boolean by obtained
     companion object {
+        val Gson: Gson = GsonBuilder().excludeFieldsWithoutExposeAnnotation().create()
         @JvmStatic
         protected val FeaturePackage: String = "fr.username404.snowygui.gui.feature"
         lateinit var annotatedButtons: Set<Class<*>>

common/src/main/kotlin/fr/username404/snowygui/config/Configuration.kt

@@ -13,9 +13,6 @@ import io.github.config4k.extract
 import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.runBlocking
-import kotlinx.serialization.decodeFromString
-import kotlinx.serialization.encodeToString
-import kotlinx.serialization.json.Json
 import net.minecraft.client.Minecraft
 import java.io.File
 import java.nio.charset.Charset
@@ -78,8 +75,8 @@ object Configuration {
     val macros: MutableSet<Macro> = run {
         if (!macroFile.exists()) macroFile.createNewFile()
         macroFile.readLines(Charset.forName("UTF-8")).map {
-            Json.decodeFromString<Macro>(it)
+            Snowy.Gson.fromJson(it, Macro::class.java)
-        }.toMutableSet()
+        }.map { it.copy() }.toMutableSet()
     }
     init {
         Runtime.getRuntime().addShutdownHook(
@@ -94,7 +91,7 @@ object Configuration {
                             }
                         )
                     }
-                    macros.map { Json.encodeToString(it) }.forEachIndexed { index, s ->
+                    macros.map { Snowy.Gson.toJson(it) }.forEachIndexed { index, s ->
                         with(macroFile) {
                             "$s\n".let {
                                 if (index == 0) {

common/src/main/kotlin/fr/username404/snowygui/gui/feature/Macro.kt

@@ -1,14 +1,13 @@
 package fr.username404.snowygui.gui.feature
 
+import com.google.gson.annotations.Expose
 import net.minecraft.client.Minecraft
-import kotlinx.serialization.*
 import fr.username404.snowygui.gui.feature.ButtonInfo.Companion.Type
 
-@Serializable
 @ButtonInfo(Category.MACROS, kind = Type.CLICK)
 data class Macro(
-    private val command: String,
+    @Expose private val command: String,
-    override val title: String = command
+    @Expose override val title: String = command
 ): ButtonImpl() {
     override fun execAction() = Minecraft.getInstance().player!!.chat("/$command")
 }

forge/build.gradle.kts

@@ -9,8 +9,7 @@ dependencies {
     implementation("thedarkcolour:kotlinforforge:${rootProject.property("kotlinforforge")}.0")
     implementation(project(path = ":common")) { isTransitive = false }
     add("developmentForge", project(path = ":common")) { isTransitive = false }
-    shadowC("org.jetbrains.kotlinx:kotlinx-serialization-core:$serializationVer") { isTransitive = false }
+    shadowC("org.jetbrains.kotlinx:kotlinx-serialization-core:$serializationVer") { isTransitive = false } // Needed for kotlinx-datetime
-    shadowC("org.jetbrains.kotlinx:kotlinx-serialization-json:$serializationVer") { isTransitive = false }
     shadowC(project(path = ":common", configuration = "transformProductionForge")) { isTransitive = false }
 }; loom {
     useFabricMixin = true

forge/src/main/kotlin/fr/username404/snowygui/forge/ForgeInit.kt

@@ -42,7 +42,7 @@ class ForgeInit: Snowy() {
                 (data!!.javaClass.getDeclaredField("clazz").apply { isAccessible = true }.get(data) as Type).className.let { classname ->
                     classname.startsWith(FeaturePackage).let {
                         it && with(Class.forName(classname)) {
-                            (!kotlin.isAbstract || !kotlin.isData) && declaredAnnotations.any { annotation ->
+                            (!(kotlin.isAbstract || kotlin.isData)) && declaredAnnotations.any { annotation ->
                                 annotation is ButtonInfo
                             }
                         }