Purpur/patches/server/0218-Redirect-System.out-calls-to-plugin-loggers.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Mon, 28 Jun 2021 13:33:12 -0500
Subject: [PATCH] Redirect System.out calls to plugin loggers


diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
index 4909f57006af0c8bc69773952e93d5546c3d8cbf..61877f5ba0e54bbf046dabc067c79bf4df588278 100644
--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
@@ -178,8 +178,8 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
         */
         // Paper end
 
-        System.setOut(IoBuilder.forLogger(logger).setLevel(Level.INFO).buildPrintStream());
-        System.setErr(IoBuilder.forLogger(logger).setLevel(Level.WARN).buildPrintStream());
+        System.setOut(new net.pl3x.purpur.PurpurPrintStream(IoBuilder.forLogger(logger).setLevel(Level.INFO).buildPrintStream(), java.util.logging.Logger::info)); // Purpur
+        System.setErr(new net.pl3x.purpur.PurpurPrintStream(IoBuilder.forLogger(logger).setLevel(Level.WARN).buildPrintStream(), java.util.logging.Logger::severe)); // Purpur
         // CraftBukkit end
 
         thread.setDaemon(true);
diff --git a/src/main/java/net/pl3x/purpur/PurpurPrintStream.java b/src/main/java/net/pl3x/purpur/PurpurPrintStream.java
new file mode 100644
index 0000000000000000000000000000000000000000..f88da0b86a683b25d429ceea4a36d6dde12b2b56
--- /dev/null
+++ b/src/main/java/net/pl3x/purpur/PurpurPrintStream.java
@@ -0,0 +1,65 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020 Josh (Vicarious)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package net.pl3x.purpur;
+
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.jetbrains.annotations.NotNull;
+
+import java.io.OutputStream;
+import java.io.PrintStream;
+import java.util.function.BiConsumer;
+import java.util.logging.Logger;
+
+/**
+ * Logic borrowed from SysoutCatcher
+ * <p>
+ * https://www.spigotmc.org/resources/sysoutcatcher.79076/
+ */
+
+public class PurpurPrintStream extends PrintStream {
+    private static final StackWalker STACKWALKER = StackWalker.getInstance(StackWalker.Option.RETAIN_CLASS_REFERENCE);
+    private final BiConsumer<Logger, String> consumer;
+
+    public PurpurPrintStream(@NotNull OutputStream out, BiConsumer<Logger, String> consumer) {
+        super(out);
+        this.consumer = consumer;
+    }
+
+    @Override
+    public void println(String line) {
+        try {
+            // Get the JavaPlugin that "owns" the calling class
+            JavaPlugin plugin = JavaPlugin.getProvidingPlugin(STACKWALKER.getCallerClass());
+
+            // Instead of just printing the message, send it to the plugin's logger
+            consumer.accept(plugin.getLogger(), line);
+        } catch (Throwable ignore) {
+            // If anything happens, the calling class doesn't exist, there is no JavaPlugin that "owns" the calling class, etc
+            // Just print out normally, with some added information
+            StackTraceElement element = Thread.currentThread().getStackTrace()[2];
+            consumer.accept(Bukkit.getLogger(), String.format("(%s:%d) %s", element.getClassName(), element.getLineNumber(), line));
+        }
+    }
+}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 64fa32a25e5e2d745d7605dfb1439f0e087dc304..1cdc15dc93b64887abbc5e7df1a91fc4705df169 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -291,7 +291,7 @@ public final class CraftServer implements Server {
     public int reloadCount;
     private final io.papermc.paper.datapack.PaperDatapackManager datapackManager; // Paper
     public static Exception excessiveVelEx; // Paper - Velocity warnings
-    private final SysoutCatcher sysoutCatcher = new SysoutCatcher(); // Paper
+    //private final SysoutCatcher sysoutCatcher = new SysoutCatcher(); // Paper // Purpur - we have our own implementation that doesnt nag or prefix output
 
     static {
         ConfigurationSerialization.registerClass(CraftOfflinePlayer.class);