Paper/Bukkit-Patches/0012-Console-Command-Completion.patch

From a9d4188a487013c7dd5602f6a22d967035820cdd Mon Sep 17 00:00:00 2001
From: Phillip Schichtel <quick_wango@code-infection.de>
Date: Mon, 29 Apr 2013 23:07:42 +0200
Subject: [PATCH] Console Command Completion

Implement command tab completion in the console. Adds BUKKIT-4168

To accomplish this 2 changes to Bukkit were required:
- the player check in Command.tabComplete() had to be removed
- the SimpleCommandMap prepends the / only for players

diff --git a/src/main/java/org/bukkit/command/Command.java b/src/main/java/org/bukkit/command/Command.java
index 5416c71..2f189ca 100644
--- a/src/main/java/org/bukkit/command/Command.java
+++ b/src/main/java/org/bukkit/command/Command.java
@@ -78,18 +78,13 @@ public abstract class Command {
         Validate.notNull(args, "Arguments cannot be null");
         Validate.notNull(alias, "Alias cannot be null");
 
-        if (!(sender instanceof Player) || args.length == 0) {
-            return ImmutableList.of();
-        }
-
         String lastWord = args[args.length - 1];
 
-        Player senderPlayer = (Player) sender;
-
         ArrayList<String> matchedPlayers = new ArrayList<String>();
+        final boolean noPlayer = !(sender instanceof Player);
         for (Player player : sender.getServer().getOnlinePlayers()) {
             String name = player.getName();
-            if (senderPlayer.canSee(player) && StringUtil.startsWithIgnoreCase(name, lastWord)) {
+            if (noPlayer || ((Player) sender).canSee(player) && StringUtil.startsWithIgnoreCase(name, lastWord)) {
                 matchedPlayers.add(name);
             }
         }
diff --git a/src/main/java/org/bukkit/command/SimpleCommandMap.java b/src/main/java/org/bukkit/command/SimpleCommandMap.java
index df5f6ef..4c3e421 100644
--- a/src/main/java/org/bukkit/command/SimpleCommandMap.java
+++ b/src/main/java/org/bukkit/command/SimpleCommandMap.java
@@ -16,6 +16,7 @@ import java.util.regex.Pattern;
 import org.apache.commons.lang.Validate;
 import org.bukkit.Server;
 import org.bukkit.command.defaults.*;
+import org.bukkit.entity.Player;
 import org.bukkit.util.StringUtil;
 
 public class SimpleCommandMap implements CommandMap {
@@ -224,6 +225,8 @@ public class SimpleCommandMap implements CommandMap {
             ArrayList<String> completions = new ArrayList<String>();
             Map<String, Command> knownCommands = this.knownCommands;
 
+            final String prefix = (sender instanceof Player ? "/" : "");
+
             for (VanillaCommand command : fallbackCommands) {
                 String name = command.getName();
 
@@ -239,7 +242,7 @@ public class SimpleCommandMap implements CommandMap {
                     continue;
                 }
 
-                completions.add('/' + name);
+                completions.add(prefix + name);
             }
 
             for (Map.Entry<String, Command> commandEntry : knownCommands.entrySet()) {
@@ -252,7 +255,7 @@ public class SimpleCommandMap implements CommandMap {
                 String name = commandEntry.getKey(); // Use the alias, not command name
 
                 if (StringUtil.startsWithIgnoreCase(name, cmdLine)) {
-                    completions.add('/' + name);
+                    completions.add(prefix + name);
                 }
             }
 
-- 
1.8.1.2