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Add /paper dumplisteners tofile and increase detail of command output (#8592)

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This commit is contained in:
Jason Penilla 2022-11-26 10:36:11 -07:00
parent 25196237b1
commit 59d8df6cba
2 changed files with 201 additions and 10 deletions
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71
patches/server/Add-paper-dumplisteners-command.patch
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@ -35,27 +35,36 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+
+import com.destroystokyo.paper.util.SneakyThrow;
+import io.papermc.paper.command.PaperSubcommand;
+import java.io.File;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.reflect.Field;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+import java.util.Set;
+import java.util.stream.Stream;
+import net.kyori.adventure.text.Component;
+import net.minecraft.server.MinecraftServer;
+import org.bukkit.Bukkit;
+import org.bukkit.command.CommandSender;
+import org.bukkit.event.HandlerList;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.RegisteredListener;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.framework.qual.DefaultQualifier;
+
+import static net.kyori.adventure.text.Component.newline;
+import static net.kyori.adventure.text.Component.space;
+import static net.kyori.adventure.text.Component.text;
+import static net.kyori.adventure.text.format.NamedTextColor.GRAY;
+import static net.kyori.adventure.text.format.NamedTextColor.GREEN;
+import static net.kyori.adventure.text.format.NamedTextColor.RED;
+import static net.kyori.adventure.text.format.NamedTextColor.WHITE;
+
+@DefaultQualifier(NonNull.class)
+public final class DumpListenersCommand implements PaperSubcommand {
@ -73,13 +82,41 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+
+ @Override
+ public boolean execute(final CommandSender sender, final String subCommand, final String[] args) {
+ if (args.length >= 1 && args[0].equals("tofile")) {
+ this.dumpToFile(sender);
+ return true;
+ }
+ this.doDumpListeners(sender, args);
+ return true;
+ }
+
+ private void dumpToFile(final CommandSender sender) {
+ final File file = new File("debug/listeners-"
+ + DateTimeFormatter.ofPattern("yyyy-MM-dd_HH.mm.ss").format(LocalDateTime.now()) + ".txt");
+ try (final PrintWriter writer = new PrintWriter(file)) {
+ for (final String eventClass : eventClassNames()) {
+ final HandlerList handlers;
+ try {
+ handlers = (HandlerList) findClass(eventClass).getMethod("getHandlerList").invoke(null);
+ } catch (final ReflectiveOperationException e) {
+ continue;
+ }
+ if (handlers.getRegisteredListeners().length != 0) {
+ writer.println(eventClass);
+ }
+ for (final RegisteredListener registeredListener : handlers.getRegisteredListeners()) {
+ writer.println(" - " + registeredListener);
+ }
+ }
+ } catch (final IOException ex) {
+ throw new RuntimeException(ex);
+ }
+ sender.sendMessage(text("Dumped listeners to " + file, GREEN));
+ }
+
+ private void doDumpListeners(final CommandSender sender, final String[] args) {
+ if (args.length == 0) {
+ sender.sendMessage(text("Usage: /paper dumplisteners [className]", RED));
+ sender.sendMessage(text("Usage: /paper dumplisteners tofile|<className>", RED));
+ return;
+ }
+
@ -93,12 +130,19 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+
+ sender.sendMessage(text("Listeners for " + args[0] + ":"));
+
+ Stream.of(handlers.getRegisteredListeners())
+ .map(listener -> text(listener.getPlugin().getName(), GREEN)
+ for (final RegisteredListener listener : handlers.getRegisteredListeners()) {
+ final Component hoverText = text("Priority: " + listener.getPriority().name() + " (" + listener.getPriority().getSlot() + ")", WHITE)
+ .append(newline())
+ .append(text("Listener: " + listener.getListener()))
+ .append(newline())
+ .append(text("Executor: " + listener.getExecutor()))
+ .append(newline())
+ .append(text("Ignoring cancelled: " + listener.isIgnoringCancelled()));
+
+ sender.sendMessage(text(listener.getPlugin().getName(), GREEN)
+ .append(space())
+ .append(text("(" + listener.getListener().getClass().getName() + ")", GRAY)
+ .hoverEvent(text("Priority: " + listener.getPriority().name() + " (" + listener.getPriority().getSlot() + ")", GRAY))))
+ .forEach(sender::sendMessage);
+ .append(text("(" + listener.getListener().getClass().getName() + ")", GRAY).hoverEvent(hoverText)));
+ }
+
+ sender.sendMessage(text("Total listeners: " + handlers.getRegisteredListeners().length));
+
@ -115,16 +159,23 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ @Override
+ public List<String> tabComplete(final CommandSender sender, final String subCommand, final String[] args) {
+ return switch (args.length) {
+ case 0 -> List.copyOf(getEventClasses());
+ case 1 -> getEventClasses().stream()
+ case 0 -> suggestions();
+ case 1 -> suggestions().stream()
+ .filter(clazz -> clazz.toLowerCase(Locale.ROOT).contains(args[0].toLowerCase(Locale.ROOT)))
+ .toList();
+ default -> Collections.emptyList();
+ };
+ }
+
+ private static List<String> suggestions() {
+ final List<String> ret = new ArrayList<>();
+ ret.add("tofile");
+ ret.addAll(eventClassNames());
+ return ret;
+ }
+
+ @SuppressWarnings("unchecked")
+ private static Set<String> getEventClasses() {
+ private static Set<String> eventClassNames() {
+ try {
+ return (Set<String>) EVENT_TYPES_HANDLE.invokeExact();
+ } catch (final Throwable e) {