Reimplement plugin incompatibility check, tweak some commands

ProtocolLib/src/main/java/com/comphenix/protocol/CommandBase.java

@@ -66,6 +66,7 @@ abstract class CommandBase implements CommandExecutor {
 				reporter.reportWarning(this, Report.newBuilder(REPORT_UNEXPECTED_COMMAND).messageParam(this));
 				return false;
 			}
+
 			if (permission != null && !sender.hasPermission(permission)) {
 				sender.sendMessage(ChatColor.RED + "You haven't got permission to run this command.");
 				return true;
@@ -75,13 +76,12 @@ abstract class CommandBase implements CommandExecutor {
 			if (args != null && args.length >= minimumArgumentCount) {
 				return handleCommand(sender, args);
 			} else {
-				sender.sendMessage(ChatColor.RED + "Insufficient commands. You need at least " + minimumArgumentCount);
+				sender.sendMessage(ChatColor.RED + "Insufficient arguments. You need at least " + minimumArgumentCount);
 				return false;
 			}
-			
-		} catch (Exception e) {
+		} catch (Throwable ex) {
 			reporter.reportDetailed(this,
-					Report.newBuilder(REPORT_COMMAND_ERROR).error(e).messageParam(name).callerParam(sender, label, args)
+					Report.newBuilder(REPORT_COMMAND_ERROR).error(ex).messageParam(name).callerParam(sender, label, args)
 			);
 			return true;
 		}

ProtocolLib/src/main/java/com/comphenix/protocol/CommandProtocol.java

@@ -23,6 +23,7 @@ import java.io.IOException;
 import org.bukkit.ChatColor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.PluginDescriptionFile;
 
 import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.events.PacketListener;
@@ -60,6 +61,8 @@ class CommandProtocol extends CommandBase {
 			toggleTimings(sender, args);
 		else if (subCommand.equalsIgnoreCase("listeners"))
 			printListeners(sender);
+		else if (subCommand.equalsIgnoreCase("version"))
+			printVersion(sender);
 		else
 			return false;
 		return true;
@@ -69,13 +72,14 @@ class CommandProtocol extends CommandBase {
 	private void printListeners(final CommandSender sender) {
 		ProtocolManager manager = ProtocolLibrary.getProtocolManager();
 
-		for (PacketListener listener : manager.getPacketListeners()) {
 		sender.sendMessage(ChatColor.GOLD + "Packet listeners:");
+		for (PacketListener listener : manager.getPacketListeners()) {
 			sender.sendMessage(ChatColor.GOLD + " " + listener);
 		}
+
 		// Along with every asynchronous listener
-		for (PacketListener listener : manager.getAsynchronousManager().getAsyncHandlers()) {
 		sender.sendMessage(ChatColor.GOLD + "Asynchronous listeners:");
+		for (PacketListener listener : manager.getAsynchronousManager().getAsyncHandlers()) {
 			sender.sendMessage(ChatColor.GOLD + " " + listener);
 		}
 	}
@@ -123,12 +127,19 @@ class CommandProtocol extends CommandBase {
 			// Print to a text file
 			generator.saveTo(destination, manager);
 			manager.clear();
-
 		} catch (IOException e) {
 			reporter.reportMinimal(plugin, "saveTimings()", e);
 		}
 	}
 
+	private void printVersion(CommandSender sender) {
+		PluginDescriptionFile desc = plugin.getDescription();
+
+		sender.sendMessage(ChatColor.GREEN + desc.getName() + ChatColor.WHITE + " v" + ChatColor.GREEN + desc.getVersion());
+		sender.sendMessage("Authors: " + ChatColor.GREEN + "dmulloy2 " + ChatColor.WHITE + " and " + ChatColor.GREEN + "Comphenix");
+		sender.sendMessage("Issues: " + ChatColor.GREEN + "https://github.com/dmulloy2/ProtocolLib/issues");
+	}
+
 	/**
 	 * Prevent further automatic updates until the next delay.
 	 */

ProtocolLib/src/main/java/com/comphenix/protocol/ProtocolLibrary.java

@@ -30,6 +30,7 @@ import java.util.regex.Pattern;
 import org.bukkit.Server;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.PluginCommand;
+import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.PluginManager;
 import org.bukkit.plugin.java.JavaPlugin;
 
@@ -371,6 +372,9 @@ public class ProtocolLibrary extends JavaPlugin {
 				return;
 			}
 
+			// Check for incompatible plugins
+			checkForIncompatibility(manager);
+
 			// Initialize background compiler
 			if (backgroundCompiler == null && config.isBackgroundCompilerEnabled()) {
 				backgroundCompiler = new BackgroundCompiler(getClassLoader(), reporter);
@@ -392,7 +396,6 @@ public class ProtocolLibrary extends JavaPlugin {
 			// Worker that ensures that async packets are eventually sent
 			// It also performs the update check.
 			createPacketTask(server);
-
 		} catch (OutOfMemoryError e) {
 			throw e;
 		} catch (ThreadDeath e) {
@@ -419,6 +422,26 @@ public class ProtocolLibrary extends JavaPlugin {
 		}
 	}
 
+	private void checkForIncompatibility(PluginManager manager) {
+		// Plugin authors: Notify me to remove these
+		String[] incompatible = { };
+
+		for (String plugin : incompatible) {
+			if (manager.getPlugin(plugin) != null) {
+				// Check for versions, etc.
+				logger.severe("Detected incompatible plugin: " + plugin);
+			}
+		}
+
+		// Special case for TagAPI and iTag
+		if (manager.getPlugin("TagAPI") != null) {
+			Plugin iTag = manager.getPlugin("iTag");
+			if (iTag == null || iTag.getDescription().getVersion().startsWith("1.0")) {
+				logger.severe("Detected incompatible plugin: TagAPI");
+			}
+		}
+	}
+
 	// Used to check Minecraft version
 	private MinecraftVersion verifyMinecraftVersion() {
 		MinecraftVersion minimum = new MinecraftVersion(MINIMUM_MINECRAFT_VERSION);
@@ -435,8 +458,8 @@ public class ProtocolLibrary extends JavaPlugin {
 				if (current.compareTo(maximum) > 0)
 					logger.warning("Version " + current + " has not yet been tested! Proceed with caution.");
 			}
-			return current;
 
+			return current;
 		} catch (Exception e) {
 			reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_PARSE_MINECRAFT_VERSION).error(e).messageParam(maximum));
 
@@ -460,7 +483,6 @@ public class ProtocolLibrary extends JavaPlugin {
 			for (File candidate : pluginFolder.listFiles()) {
 				if (candidate.isFile() && !candidate.equals(loadedFile)) {
 					Matcher match = ourPlugin.matcher(candidate.getName());
-
 					if (match.matches()) {
 						MinecraftVersion version = new MinecraftVersion(match.group(1));
 
@@ -473,7 +495,6 @@ public class ProtocolLibrary extends JavaPlugin {
 					}
 				}
 			}
-
 		} catch (Exception e) {
 			reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_DETECT_CONFLICTING_PLUGINS).error(e));
 		}
@@ -498,11 +519,11 @@ public class ProtocolLibrary extends JavaPlugin {
 			PluginCommand command = getCommand(name);
 
 			// Try to load the command
-			if (command != null)
+			if (command != null) {
 				command.setExecutor(executor);
-			else
+			} else {
 				throw new RuntimeException("plugin.yml might be corrupt.");
-
+			}
 		} catch (RuntimeException e) {
 			reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_REGISTER_COMMAND).messageParam(name, e.getMessage()).error(e));
 		}

ProtocolLib/src/main/resources/plugin.yml

@@ -10,7 +10,7 @@ database: false
 commands:
   protocol:
     description: Performs administrative tasks regarding ProtocolLib.
-    usage: /<command> config|check|update
+    usage: /<command> config|timings|listeners|version
     permission: protocol.admin
     permission-message: You don't have <permission>
   packet: