Allow the suppressing of metadata errors.

src/main/java/us/myles/ViaVersion/ViaVersionPlugin.java

@@ -184,6 +184,10 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
         return getConfig().getBoolean("prevent-collision", true);
     }
 
+    public boolean isSuppressMetadataErrors() {
+        return getConfig().getBoolean("suppress-metadata-errors", false);
+    }
+
     public boolean isAutoTeam() {
         // Collision has to be enabled first
         if (!isPreventCollision()) return false;

src/main/java/us/myles/ViaVersion/metadata/MetadataRewriter.java

@@ -6,6 +6,8 @@ import lombok.Setter;
 import org.bukkit.entity.EntityType;
 import org.bukkit.util.EulerAngle;
 import org.bukkit.util.Vector;
+import us.myles.ViaVersion.ViaVersionPlugin;
+import us.myles.ViaVersion.api.ViaVersion;
 import us.myles.ViaVersion.slot.ItemSlotRewriter;
 import us.myles.ViaVersion.slot.ItemSlotRewriter.ItemStack;
 import us.myles.ViaVersion.transformers.OutgoingTransformer;
@@ -117,11 +119,12 @@ public class MetadataRewriter {
                     }
                 }
             } catch (Exception e) {
+                if (!((ViaVersionPlugin) ViaVersion.getInstance()).isSuppressMetadataErrors()) {
                     System.out.println("INCLUDE THIS IN YOUR ERROR LOG!");
                     if (type != null)
                         System.out.println("An error occurred with entity meta data for " + type + " OldID: " + entry.oldID);
                     else
-                    System.out.println("An error occurred with entity meta data for UNKOWN_ENTITY OldID: " + entry.oldID);
+                        System.out.println("An error occurred with entity meta data for UNKNOWN_ENTITY OldID: " + entry.oldID);
                     if (metaIndex != null) {
                         System.out.println("Old ID: " + metaIndex.getIndex() + " New ID: " + metaIndex.getNewIndex());
                         System.out.println("Old Type: " + metaIndex.getOldType() + " New Type: " + metaIndex.getNewType());
@@ -129,6 +132,7 @@ public class MetadataRewriter {
                     e.printStackTrace();
                 }
             }
+        }
         output.writeByte(255);
     }
 

src/main/resources/config.yml

@@ -8,3 +8,5 @@ sync-chunks: true
 prevent-collision: true
 # If the above is true, should we automatically team players until you do?
 auto-team: true
+# When enabled if certain metadata can't be read we won't tell you about it
+suppress-metadata-errors: false