PaperMC/Spigot-Server-Patches/0166-Handle-plugin-prefixes-using-Log4J-configuration.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Minecrell <minecrell@minecrell.net>
Date: Thu, 21 Sep 2017 16:14:55 +0200
Subject: [PATCH] Handle plugin prefixes using Log4J configuration

Display logger name in the console for all loggers except the
root logger, Bukkit's logger ("Minecraft") and Minecraft loggers.
Since plugins now use the plugin name as logger name this will
restore the plugin prefixes without having to prepend them manually
to the log messages.

Logger prefixes are shown by default for all loggers except for
the root logger, the Minecraft/Mojang loggers and the Bukkit loggers.
This may cause additional prefixes to be disabled for plugins bypassing
the plugin logger.

diff --git a/pom.xml b/pom.xml
index 0a6e1782c0eb8aa3aff94c5bfae5c5ea4a24ba56..14d365756efbe2067c049659eb9076ab1e3415ef 100644
--- a/pom.xml
+++ b/pom.xml
@@ -65,7 +65,7 @@
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
             <version>2.8.1</version>
-            <scope>runtime</scope>
+            <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
index 23c1ba33903f8913a33332d06b2fd1aa3c90f1a1..bf00d6d263b692e8a597694c689768f177835fde 100644
--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
@@ -290,7 +290,7 @@ public class SpigotConfig
     private static void playerSample()
     {
         playerSample = getInt( "settings.sample-count", 12 );
-        System.out.println( "Server Ping Player Sample Count: " + playerSample );
+        Bukkit.getLogger().log( Level.INFO, "Server Ping Player Sample Count: {0}", playerSample ); // Paper - Use logger
     }
 
     public static int playerShuffle;
diff --git a/src/main/resources/log4j2.xml b/src/main/resources/log4j2.xml
index 620b9490e5f159080e50289d127404a1b56adbef..a8bdaaeaa1a9316848416f0533739b9b083ca151 100644
--- a/src/main/resources/log4j2.xml
+++ b/src/main/resources/log4j2.xml
@@ -5,10 +5,22 @@
             <PatternLayout pattern="[%d{HH:mm:ss} %level]: %msg%n" />
         </Queue>
         <TerminalConsole name="TerminalConsole">
-            <PatternLayout pattern="%highlightError{[%d{HH:mm:ss} %level]: %minecraftFormatting{%msg}%n%xEx}" />
+            <PatternLayout>
+                <LoggerNamePatternSelector defaultPattern="%highlightError{[%d{HH:mm:ss} %level]: [%logger] %minecraftFormatting{%msg}%n%xEx}">
+                    <!-- Log root, Minecraft, Mojang and Bukkit loggers without prefix -->
+                    <PatternMatch key=",net.minecraft.,Minecraft,com.mojang."
+                                  pattern="%highlightError{[%d{HH:mm:ss} %level]: %minecraftFormatting{%msg}%n%xEx}" />
+                </LoggerNamePatternSelector>
+            </PatternLayout>
         </TerminalConsole>
         <RollingRandomAccessFile name="File" fileName="logs/latest.log" filePattern="logs/%d{yyyy-MM-dd}-%i.log.gz">
-            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level]: %minecraftFormatting{%msg}{strip}%n" />
+            <PatternLayout>
+                <LoggerNamePatternSelector defaultPattern="[%d{HH:mm:ss}] [%t/%level]: [%logger] %minecraftFormatting{%msg}{strip}%n">
+                    <!-- Log root, Minecraft, Mojang and Bukkit loggers without prefix -->
+                    <PatternMatch key=",net.minecraft.,Minecraft,com.mojang."
+                                  pattern="[%d{HH:mm:ss}] [%t/%level]: %minecraftFormatting{%msg}{strip}%n" />
+                </LoggerNamePatternSelector>
+            </PatternLayout>
             <Policies>
                 <TimeBasedTriggeringPolicy />
                 <OnStartupTriggeringPolicy />