From 55dc3ff664369f159011a07596aa1f4335f8d507 Mon Sep 17 00:00:00 2001
From: willies952002 <admin@domnian.com>
Date: Mon, 28 Nov 2016 10:16:39 -0500
Subject: [PATCH] Allow Reloading of Command Aliases

Reload the aliases stored in commands.yml
---
 paper-api/src/main/java/org/bukkit/Bukkit.java        |  9 +++++++++
 paper-api/src/main/java/org/bukkit/Server.java        |  2 ++
 .../src/main/java/org/bukkit/command/CommandMap.java  | 10 ++++++++++
 .../java/org/bukkit/command/SimpleCommandMap.java     |  7 +++++++
 .../org/bukkit/command/defaults/ReloadCommand.java    | 11 +++++++++--
 5 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/paper-api/src/main/java/org/bukkit/Bukkit.java b/paper-api/src/main/java/org/bukkit/Bukkit.java
index 13fa39ed3d..5660aa59d3 100644
--- a/paper-api/src/main/java/org/bukkit/Bukkit.java
+++ b/paper-api/src/main/java/org/bukkit/Bukkit.java
@@ -2403,6 +2403,15 @@ public final class Bukkit {
     public static void reloadPermissions() {
         server.reloadPermissions();
     }
+
+    /**
+     * Reload the Command Aliases in commands.yml
+     *
+     * @return Whether the reload was successful
+     */
+    public static boolean reloadCommandAliases() {
+        return server.reloadCommandAliases();
+    }
     // Paper end
 
     @NotNull
diff --git a/paper-api/src/main/java/org/bukkit/Server.java b/paper-api/src/main/java/org/bukkit/Server.java
index 6567d1746f..2c0e3ce1e6 100644
--- a/paper-api/src/main/java/org/bukkit/Server.java
+++ b/paper-api/src/main/java/org/bukkit/Server.java
@@ -2098,4 +2098,6 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
     // Spigot end
 
     void reloadPermissions(); // Paper
+
+    boolean reloadCommandAliases(); // Paper
 }
diff --git a/paper-api/src/main/java/org/bukkit/command/CommandMap.java b/paper-api/src/main/java/org/bukkit/command/CommandMap.java
index bd2c7a6964..864c263bbd 100644
--- a/paper-api/src/main/java/org/bukkit/command/CommandMap.java
+++ b/paper-api/src/main/java/org/bukkit/command/CommandMap.java
@@ -128,4 +128,14 @@ public interface CommandMap {
      */
     @Nullable
     public List<String> tabComplete(@NotNull CommandSender sender, @NotNull String cmdLine, @Nullable Location location) throws IllegalArgumentException;
+
+    // Paper start - Expose Known Commands
+    /**
+     * Return a Map of known commands
+     *
+     * @return known commands
+     */
+    @NotNull
+    public java.util.Map<String, Command> getKnownCommands();
+    // Paper end
 }
diff --git a/paper-api/src/main/java/org/bukkit/command/SimpleCommandMap.java b/paper-api/src/main/java/org/bukkit/command/SimpleCommandMap.java
index c7fa1d235c..27243a1214 100644
--- a/paper-api/src/main/java/org/bukkit/command/SimpleCommandMap.java
+++ b/paper-api/src/main/java/org/bukkit/command/SimpleCommandMap.java
@@ -294,4 +294,11 @@ public class SimpleCommandMap implements CommandMap {
             }
         }
     }
+
+    // Paper start - Expose Known Commands
+    @NotNull
+    public Map<String, Command> getKnownCommands() {
+        return knownCommands;
+    }
+    // Paper end
 }
diff --git a/paper-api/src/main/java/org/bukkit/command/defaults/ReloadCommand.java b/paper-api/src/main/java/org/bukkit/command/defaults/ReloadCommand.java
index 5fa9d648bc..3ec32b4626 100644
--- a/paper-api/src/main/java/org/bukkit/command/defaults/ReloadCommand.java
+++ b/paper-api/src/main/java/org/bukkit/command/defaults/ReloadCommand.java
@@ -13,7 +13,7 @@ public class ReloadCommand extends BukkitCommand {
     public ReloadCommand(@NotNull String name) {
         super(name);
         this.description = "Reloads the server configuration and plugins";
-        this.usageMessage = "/reload [permissions]"; // Paper
+        this.usageMessage = "/reload [permissions|commands|confirm]"; // Paper
         this.setPermission("bukkit.command.reload");
         this.setAliases(Arrays.asList("rl"));
     }
@@ -29,6 +29,13 @@ public class ReloadCommand extends BukkitCommand {
                 Bukkit.getServer().reloadPermissions();
                 Command.broadcastCommandMessage(sender, net.kyori.adventure.text.Component.text("Permissions successfully reloaded.", net.kyori.adventure.text.format.NamedTextColor.GREEN));
                 return true;
+            } else if ("commands".equalsIgnoreCase(args[0])) {
+                if (Bukkit.getServer().reloadCommandAliases()) {
+                    Command.broadcastCommandMessage(sender, net.kyori.adventure.text.Component.text("Command aliases successfully reloaded.", net.kyori.adventure.text.format.NamedTextColor.GREEN));
+                } else {
+                    Command.broadcastCommandMessage(sender, net.kyori.adventure.text.Component.text("An error occurred while trying to reload command aliases.", net.kyori.adventure.text.format.NamedTextColor.RED));
+                }
+                return true;
             } else if ("confirm".equalsIgnoreCase(args[0])) {
                 confirmed = true;
             } else {
@@ -53,6 +60,6 @@ public class ReloadCommand extends BukkitCommand {
     @NotNull
     @Override
     public List<String> tabComplete(@NotNull CommandSender sender, @NotNull String alias, @NotNull String[] args) throws IllegalArgumentException {
-        return java.util.Collections.singletonList("permissions"); // Paper
+        return com.google.common.collect.Lists.newArrayList("permissions", "commands"); // Paper
     }
 }