add DataFixer

build.gradle

@@ -22,6 +22,10 @@ repositories {
 	maven { url "https://maven.shedaniel.me/" }
 }
 
+loom {
+	accessWidenerPath = file("src/main/resources/storagebox.accesswidener")
+}
+
 dependencies {
 	// To change the versions see the gradle.properties file
 	minecraft "com.mojang:minecraft:${project.minecraft_version}"

gradle.properties

@@ -9,8 +9,8 @@ loader_version=0.15.11
 fabric_version=0.100.4+1.21
 
 # Mod Properties
-mod_version = 1.4.0-1.21
+mod_version = 1.4.2-1.21
 maven_group = net.pitan76
 archives_base_name = storagebox
 
-changelog = Port to 1.21
+changelog = DataFixer????????

src/main/java/net/pitan76/storagebox/mixin/ItemStackComponentizationFixMixin.java

@@ -0,0 +1,21 @@
+package net.pitan76.storagebox.mixin;
+
+import com.mojang.serialization.Dynamic;
+import net.minecraft.datafixer.fix.ItemStackComponentizationFix;
+import net.pitan76.storagebox.StorageBoxMod;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(ItemStackComponentizationFix.class)
+public class ItemStackComponentizationFixMixin {
+    @Inject(method = "fixStack", at = @At("TAIL"))
+    private static void storagebox$fixStack(ItemStackComponentizationFix.StackData data, Dynamic<?> dynamic, CallbackInfo ci) {
+        if (data.itemEquals("storagebox:storagebox")) {
+            data.moveToComponent("StorageSize", StorageBoxMod.id("size").toString());
+            data.moveToComponent("StorageAuto", StorageBoxMod.id("auto").toString());
+            data.moveToComponent("StorageItemData", StorageBoxMod.id("item_data").toString());
+        }
+    }
+}

src/main/resources/fabric.mod.json

@@ -34,6 +34,7 @@
       "environment": "*"
     }
   ],
+  "accessWidener": "storagebox.accesswidener",
   "depends": {
     "fabricloader": "*",
     "fabric": "*",

src/main/resources/storagebox.accesswidener

@@ -0,0 +1,2 @@
+accessWidener   v1    named
+accessible  class   net/minecraft/datafixer/fix/ItemStackComponentizationFix$StackData

src/main/resources/storagebox.mixins.json

@@ -4,8 +4,9 @@
   "package": "net.pitan76.storagebox.mixin",
   "compatibilityLevel": "JAVA_8",
   "mixins": [
+    "ItemEntityAccessor",
     "ItemPickupMixin",
-    "ItemEntityAccessor"
+    "ItemStackComponentizationFixMixin"
   ],
   "injectors": {
     "defaultRequire": 1