Support to restart server after update

patches/net/minecraft/network/NetHandlerPlayServer.java.patch

@@ -1795,7 +1795,7 @@
          {
              packetbuffer = new PacketBuffer(Unpooled.wrappedBuffer(p_147349_1_.func_149558_e()));
 @@ -1093,16 +2398,18 @@
-                 {
+ 
                      if (itemstack.getItem() == Items.writable_book && itemstack.getItem() == itemstack1.getItem())
                      {
 -                        itemstack1.setTagInfo("pages", itemstack.getTagCompound().getTagList("pages", 8));

src/main/java/kcauldron/KCauldron.java

@@ -6,13 +6,16 @@ import java.net.URLDecoder;
 import java.util.Enumeration;
 import java.util.Properties;
 
+import org.spigotmc.RestartCommand;
+
 public class KCauldron {
 	private static boolean sManifestParsed = false;
-	
+
 	private static void parseManifest() {
-		if (sManifestParsed) return;
+		if (sManifestParsed)
+			return;
 		sManifestParsed = true;
-		
+
 		try {
 			Enumeration<URL> resources = KCauldron.class.getClassLoader()
 					.getResources("META-INF/MANIFEST.MF");
@@ -23,10 +26,11 @@ public class KCauldron {
 				String version = manifest.getProperty("KCauldron-Version");
 				if (version != null) {
 					String path = url.getPath();
-				    String jarFilePath = path.substring(path.indexOf(":") + 1, path.indexOf("!"));
-				    jarFilePath = URLDecoder.decode(jarFilePath, "UTF-8");
-				    sServerLocation = new File(jarFilePath);
-				    
+					String jarFilePath = path.substring(path.indexOf(":") + 1,
+							path.indexOf("!"));
+					jarFilePath = URLDecoder.decode(jarFilePath, "UTF-8");
+					sServerLocation = new File(jarFilePath);
+
 					sCurrentVersion = version;
 					sBranch = manifest.getProperty("KCauldron-Branch");
 					sChannel = manifest.getProperty("KCauldron-Channel");
@@ -38,7 +42,7 @@ public class KCauldron {
 		}
 
 	}
-	
+
 	private static String sCurrentVersion;
 
 	public static String getCurrentVersion() {
@@ -52,22 +56,26 @@ public class KCauldron {
 		parseManifest();
 		return sServerLocation;
 	}
-	
+
 	private static String sBranch;
-	
+
 	public static String getBranch() {
 		parseManifest();
 		return sBranch;
 	}
-	
+
 	private static String sChannel;
-	
+
 	public static String getChannel() {
 		parseManifest();
 		return sChannel;
 	}
-	
+
 	public static File sNewServerLocation;
 	public static String sNewServerVersion;
 	public static boolean sUpdateInProgress;
+
+	public static void restart() {
+		RestartCommand.restart(true);
+	}
 }

src/main/java/kcauldron/KCauldronClassTransformer.java

@@ -1,5 +1,7 @@
 package kcauldron;
 
+import static org.objectweb.asm.Opcodes.*;
+
 import org.apache.logging.log4j.Level;
 import org.objectweb.asm.ClassReader;
 import org.objectweb.asm.ClassVisitor;
@@ -11,19 +13,9 @@ import org.objectweb.asm.tree.InsnList;
 import org.objectweb.asm.tree.InsnNode;
 import org.objectweb.asm.tree.IntInsnNode;
 
-import pw.prok.imagine.api.Pair;
 import pw.prok.imagine.asm.ImagineASM;
-import pw.prok.imagine.asm.ImagineMethod;
-import pw.prok.imagine.asm.ImagineRemapper;
 import pw.prok.imagine.asm.Transformer;
-
-import com.avaje.ebean.annotation.Transactional;
-
 import cpw.mods.fml.common.FMLLog;
-import net.minecraft.launchwrapper.IClassTransformer;
-import net.minecraft.world.WorldServer;
-import net.minecraft.world.chunk.IChunkProvider;
-import static org.objectweb.asm.Opcodes.*;
 
 @Transformer.RegisterTransformer
 public class KCauldronClassTransformer implements Transformer {

src/main/java/kcauldron/KCauldronCommand.java

@@ -9,16 +9,20 @@ import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 
 public class KCauldronCommand extends Command {
-	public static final String NAME = "kcauldron";
+	public static final String NAME = "kc";
 	public static final String CHECK = NAME + ".check";
 	public static final String UPDATE = NAME + ".update";
+	public static final String RESTART = NAME + ".restart";
 
 	public KCauldronCommand() {
 		super(NAME);
 
 		StringBuilder builder = new StringBuilder();
-		builder.append(String.format("/%s check\n", NAME));
-		builder.append(String.format("/%s update [version]\n", NAME));
+		builder.append(String.format("/%s check - Check to update\n", NAME));
+		builder.append(String
+				.format("/%s update [version] - Update to specified or latest version\n",
+						NAME));
+		builder.append(String.format("/%s restart - Restart server\n", NAME));
 		setUsage(builder.toString());
 
 		setPermission("kcauldron");
@@ -50,6 +54,7 @@ public class KCauldronCommand extends Command {
 			return true;
 		if (args.length == 0) {
 			sender.sendMessage(ChatColor.YELLOW + "Please specify action");
+			sender.sendMessage(ChatColor.AQUA + usageMessage);
 			return true;
 		}
 		String action = args[0];
@@ -62,6 +67,10 @@ public class KCauldronCommand extends Command {
 		} else if ("update".equals(action)) {
 			KCauldronUpdater.initUpdate(sender, args.length > 1 ? args[1]
 					: null);
+		} else if ("restart".equals(action)) {
+			if (!testPermission(sender, RESTART))
+				return true;
+			KCauldron.restart();
 		} else {
 			sender.sendMessage(ChatColor.RED + "Unknown action");
 		}

src/main/java/kcauldron/KCauldronConfig.java

@@ -19,13 +19,15 @@ public class KCauldronConfig extends ConfigBase {
 			"updatechecker.symlinks", "", "(Re)create symlinks after update");
 	public BoolSetting updatecheckerAutoinstall = new BoolSetting(this,
 			"updatechecker.autoinstall", false, "Install updates without confirming");
+	public BoolSetting updatecheckerAutorestart = new BoolSetting(this,
+			"updatechecker.autorestart", false, "Restart server after updating without confirming (set restart script in spigot.yml)");
 	public BoolSetting updatecheckerQuite = new BoolSetting(this,
 			"updatechecker.quite", false, "Print less info during update");
 	public StringSetting updatecheckerInstallAs = new StringSetting(this,
 			"updatechecker.installAs", "", "Install new version with specified name");
 
 	public BoolSetting loggingMaterialInjection = new BoolSetting(this,
-			"loggin.materialInjection", false, "Log material injection event");
+			"logging.materialInjection", false, "Log material injection event");
 	
 	public KCauldronConfig() {
 		super("kcauldron.yml", "kc");
@@ -34,6 +36,7 @@ public class KCauldronConfig extends ConfigBase {
 		register(updatecheckerDeleteOld);
 		register(updatecheckerSymlinks);
 		register(updatecheckerAutoinstall);
+		register(updatecheckerAutorestart);
 		register(updatecheckerQuite);
 		register(updatecheckerInstallAs);
 		register(loggingMaterialInjection);

src/main/java/kcauldron/updater/KCauldronUpdater.java

@@ -152,6 +152,12 @@ public class KCauldronUpdater implements Runnable {
 			}
 			KCauldron.sNewServerLocation = newPath;
 			KCauldron.sNewServerVersion = mVersion;
+			if (MinecraftServer.kcauldronConfig.updatecheckerAutorestart.getValue()) {
+				if (mSender != null) {
+					mSender.sendMessage(ChatColor.DARK_RED + "Initiate server restart");
+				}
+				KCauldron.restart();
+			}
 		} catch (Exception e) {
 			if (!quite) {
 				e.printStackTrace();

src/main/java/org/spigotmc/RestartCommand.java

@@ -26,8 +26,12 @@ public class RestartCommand extends Command
         }
         return true;
     }
+    
+    public static void restart() {
+    	restart(false);
+    }
 
-    public static void restart()
+    public static void restart(boolean forbidShutdown)
     {
         try
         {
@@ -98,9 +102,13 @@ public class RestartCommand extends Command
                 Runtime.getRuntime().addShutdownHook( shutdownHook );
             } else
             {
+            	if (forbidShutdown) {
+            		System.out.println("Attempt to restart server without restart script, decline request");
+            		return;
+            	}
                 System.out.println( "Startup script '" + SpigotConfig.restartScript + "' does not exist! Stopping server." );
             }
-            System.exit( 0 );
+            cpw.mods.fml.common.FMLCommonHandler.instance().exitJava(0, false);
         } catch ( Exception ex )
         {
             ex.printStackTrace();