Changed some things...

- Fixed updateplugin not cancelling on error
- Moved javassist to here, so the absence of ButtonChat should no longer
cause any errors
- Added /updateplugin for simplicity and in case the chat plugin breaks

pom.xml

@@ -110,18 +110,21 @@
 			<groupId>org.spigotmc</groupId>
 			<artifactId>spigot-api</artifactId>
 			<version>1.9.2-R0.1-SNAPSHOT</version>
+			<scope>provided</scope>
 		</dependency>
 		<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-io -->
 		<dependency>
 			<groupId>org.apache.commons</groupId>
 			<artifactId>commons-io</artifactId>
 			<version>1.3.2</version>
+			<scope>provided</scope>
 		</dependency>
 		<!-- Change jitpack.yml to set location of Towny JAR -->
 		<dependency>
 			<groupId>com.github.TBMCPlugins.ButtonCore</groupId>
 			<artifactId>Towny</artifactId>
 			<version>master-SNAPSHOT</version>
+			<scope>provided</scope>
 		</dependency>
 		<dependency>
 			<groupId>com.github.milkbowl</groupId> <!-- net.milkbowl.vault -->
@@ -129,6 +132,12 @@
 			<version>master-SNAPSHOT</version> <!-- 1.6 -->
 			<scope>provided</scope>
 		</dependency>
+		<!-- https://mvnrepository.com/artifact/org.javassist/javassist -->
+		<dependency>
+			<groupId>org.javassist</groupId>
+			<artifactId>javassist</artifactId>
+			<version>3.20.0-GA</version>
+		</dependency>
 	</dependencies>
 	<organization>
 		<name>TBMCPlugins</name>

src/main/java/buttondevteam/core/MainPlugin.java

@@ -10,6 +10,7 @@ import org.bukkit.plugin.java.JavaPlugin;
 
 import buttondevteam.lib.TBMCCoreAPI;
 import buttondevteam.lib.TBMCPlayer;
+import buttondevteam.lib.chat.TBMCChatAPI;
 import net.milkbowl.vault.permission.Permission;
 
 public class MainPlugin extends JavaPlugin {
@@ -26,8 +27,9 @@ public class MainPlugin extends JavaPlugin {
 		pdfFile = getDescription();
 		logger = getLogger();
 		setupPermissions();
-		logger.info(pdfFile.getName() + " has been Enabled (V." + pdfFile.getVersion() + ").");
+		TBMCChatAPI.AddCommand(this, UpdatePluginCommand.class);
 		TBMCCoreAPI.RegisterEventsForExceptions(new PlayerListener(), this);
+		logger.info(pdfFile.getName() + " has been Enabled (V." + pdfFile.getVersion() + ").");
 	}
 
 	@Override

src/main/java/buttondevteam/core/UpdatePluginCommand.java

@@ -0,0 +1,50 @@
+package buttondevteam.core;
+
+import org.bukkit.Bukkit;
+import org.bukkit.command.CommandSender;
+
+import buttondevteam.lib.TBMCCoreAPI;
+import buttondevteam.lib.chat.TBMCCommandBase;
+
+public class UpdatePluginCommand extends TBMCCommandBase {
+	@Override
+	public boolean OnCommand(CommandSender sender, String alias, String[] args) {
+		if (args.length == 0) {
+			sender.sendMessage("Downloading plugin names...");
+			boolean first = true;
+			for (String plugin : TBMCCoreAPI.GetPluginNames()) {
+				if (first) {
+					sender.sendMessage("§6---- Plugin names ----");
+					first = false;
+				}
+				sender.sendMessage("- " + plugin);
+			}
+			return true;
+		} else {
+			Bukkit.getScheduler().runTaskAsynchronously(MainPlugin.Instance, () -> {
+				TBMCCoreAPI.UpdatePlugin(args[0], sender, args.length == 1 ? "master" : args[1]);
+			});
+			return true;
+		}
+	}
+
+	@Override
+	public String[] GetHelpText(String alias) {
+		return new String[] { //
+				"§6---- Update plugin ----", //
+				"This command downloads the latest version of a TBMC plugin from GitHub", //
+				"To update a plugin: /" + alias + " <plugin>", //
+				"To list the plugin names: /" + alias //
+		};
+	}
+
+	@Override
+	public boolean GetPlayerOnly() {
+		return false;
+	}
+
+	@Override
+	public boolean GetModOnly() {
+		return true;
+	}
+}

src/main/java/buttondevteam/lib/TBMCCoreAPI.java

@@ -71,6 +71,7 @@ public final class TBMCCoreAPI {
 		}
 		if (correctname == null) {
 			error(sender, "Can't find plugin: " + name);
+			return;
 		}
 		info(sender, "Updating TBMC plugin: " + correctname + " from " + branch);
 		URL url;
@@ -85,6 +86,7 @@ public final class TBMCCoreAPI {
 				result.delete();
 				error(sender, "The downloaded JAR for " + correctname + " from " + branch
 						+ " is too small (smnaller than 25 bytes). Am I downloading from the right place?");
+				return;
 			} else {
 				finalresult.delete(); // Attempt to support Windows
 				Files.move(result.toPath(), finalresult.toPath(), StandardCopyOption.REPLACE_EXISTING);

src/main/resources/plugin.yml

@@ -2,4 +2,6 @@ name: ButtonCore
 main: buttondevteam.core.MainPlugin
 version: 1.0
 author: TBMCPlugins
-database: true
+commands:
+  updateplugin:
+    description: Update a TBMC plugin