From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Thu, 30 Dec 2021 16:35:56 -0800
Subject: [PATCH] System prop for default config comment parsing

Allows for certain legacy plugins to continue to work without changing
by setting `Paper.parseYamlCommentsByDefault` to false

diff --git a/src/main/java/org/bukkit/configuration/file/FileConfigurationOptions.java b/src/main/java/org/bukkit/configuration/file/FileConfigurationOptions.java
index c71f8a7b96fc5abc499802a79fcb3b0771de021c..121dbbf163588690d0678ae73a6ab8edf82f8367 100644
--- a/src/main/java/org/bukkit/configuration/file/FileConfigurationOptions.java
+++ b/src/main/java/org/bukkit/configuration/file/FileConfigurationOptions.java
@@ -15,7 +15,10 @@ import org.jetbrains.annotations.Nullable;
 public class FileConfigurationOptions extends MemoryConfigurationOptions {
     private List<String> header = Collections.emptyList();
     private List<String> footer = Collections.emptyList();
-    private boolean parseComments = true;
+    // Paper start - add system prop for comment parsing
+    private static final boolean PAPER_PARSE_COMMENTS_BY_DEFAULT = Boolean.parseBoolean(System.getProperty("Paper.parseYamlCommentsByDefault", "true"));
+    private boolean parseComments = PAPER_PARSE_COMMENTS_BY_DEFAULT;
+    // Paper end
 
     protected FileConfigurationOptions(@NotNull MemoryConfiguration configuration) {
         super(configuration);
diff --git a/src/main/java/org/bukkit/configuration/file/YamlRepresenter.java b/src/main/java/org/bukkit/configuration/file/YamlRepresenter.java
index 20e968764725ddb324be28d81c50be57abd00e05..1514d3ec63a6c43fbdb4933ef75f9617ce1a1a4d 100644
--- a/src/main/java/org/bukkit/configuration/file/YamlRepresenter.java
+++ b/src/main/java/org/bukkit/configuration/file/YamlRepresenter.java
@@ -11,11 +11,22 @@ import org.yaml.snakeyaml.representer.Representer;
 public class YamlRepresenter extends Representer {
 
     public YamlRepresenter() {
+        this.multiRepresenters.put(org.bukkit.configuration.ConfigurationSection.class, new RepresentConfigurationSection()); // Paper - restore old yaml config section representer
         this.multiRepresenters.put(ConfigurationSerializable.class, new RepresentConfigurationSerializable());
         // SPIGOT-6234: We could just switch YamlConstructor to extend Constructor rather than SafeConstructor, however there is a very small risk of issues with plugins treating config as untrusted input
         // So instead we will just allow future plugins to have their enums extend ConfigurationSerializable
         this.multiRepresenters.remove(Enum.class);
     }
+    // Paper start - restore old yaml config section representer
+    private class RepresentConfigurationSection extends RepresentMap {
+
+        @NotNull
+        @Override
+        public Node representData(@NotNull Object data) {
+            return super.representData(((org.bukkit.configuration.ConfigurationSection) data).getValues(false));
+        }
+    }
+    // Paper end
 
     private class RepresentConfigurationSerializable extends RepresentMap {