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PaperMC/patches/server/0499-Enhance-console-tab-completions-for-brigadier-comman.patch
Nassim Jahnke bd55e322d8
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2024-12-03 20:00:08 +01:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Tue, 30 Mar 2021 16:06:08 -0700
Subject: [PATCH] Enhance console tab completions for brigadier commands
Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
diff --git a/src/main/java/com/destroystokyo/paper/console/PaperConsole.java b/src/main/java/com/destroystokyo/paper/console/PaperConsole.java
index a4070b59e261f0f1ac4beec47b11492f4724bf27..6ee39b534b8d992655bc0cef3c299d12cbae0034 100644
--- a/src/main/java/com/destroystokyo/paper/console/PaperConsole.java
+++ b/src/main/java/com/destroystokyo/paper/console/PaperConsole.java
@@ -1,5 +1,8 @@
package com.destroystokyo.paper.console;
+import io.papermc.paper.configuration.GlobalConfiguration;
+import io.papermc.paper.console.BrigadierCompletionMatcher;
+import io.papermc.paper.console.BrigadierConsoleParser;
import net.minecraft.server.dedicated.DedicatedServer;
import net.minecrell.terminalconsole.SimpleTerminalConsole;
import org.bukkit.craftbukkit.command.ConsoleCommandCompleter;
@@ -16,11 +19,20 @@ public final class PaperConsole extends SimpleTerminalConsole {
@Override
protected LineReader buildReader(LineReaderBuilder builder) {
- return super.buildReader(builder
+ builder
.appName("Paper")
.variable(LineReader.HISTORY_FILE, java.nio.file.Paths.get(".console_history"))
.completer(new ConsoleCommandCompleter(this.server))
- );
+ .option(LineReader.Option.COMPLETE_IN_WORD, true);
+ if (io.papermc.paper.configuration.GlobalConfiguration.get().console.enableBrigadierHighlighting) {
+ builder.highlighter(new io.papermc.paper.console.BrigadierCommandHighlighter(this.server));
+ }
+ if (GlobalConfiguration.get().console.enableBrigadierCompletions) {
+ System.setProperty("org.jline.reader.support.parsedline", "true"); // to hide a warning message about the parser not supporting
+ builder.parser(new BrigadierConsoleParser(this.server));
+ builder.completionMatcher(new BrigadierCompletionMatcher());
+ }
+ return super.buildReader(builder);
}
@Override
diff --git a/src/main/java/io/papermc/paper/console/BrigadierCommandCompleter.java b/src/main/java/io/papermc/paper/console/BrigadierCommandCompleter.java
new file mode 100644
index 0000000000000000000000000000000000000000..bf7b9518c05ff8a6d4b7d7cd36187ca22257e3dc
--- /dev/null
+++ b/src/main/java/io/papermc/paper/console/BrigadierCommandCompleter.java
@@ -0,0 +1,119 @@
+package io.papermc.paper.console;
+
+import com.destroystokyo.paper.event.server.AsyncTabCompleteEvent;
+import com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion;
+import com.google.common.base.Suppliers;
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.ParseResults;
+import com.mojang.brigadier.StringReader;
+import com.mojang.brigadier.suggestion.Suggestion;
+import io.papermc.paper.adventure.PaperAdventure;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.function.Supplier;
+import net.kyori.adventure.text.Component;
+import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.network.chat.ComponentUtils;
+import net.minecraft.server.dedicated.DedicatedServer;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.checker.nullness.qual.Nullable;
+import org.jline.reader.Candidate;
+import org.jline.reader.LineReader;
+import org.jline.reader.ParsedLine;
+
+import static com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion.completion;
+
+public final class BrigadierCommandCompleter {
+ private final Supplier<CommandSourceStack> commandSourceStack;
+ private final DedicatedServer server;
+
+ public BrigadierCommandCompleter(final @NonNull DedicatedServer server) {
+ this.server = server;
+ this.commandSourceStack = Suppliers.memoize(this.server::createCommandSourceStack);
+ }
+
+ public void complete(final @NonNull LineReader reader, final @NonNull ParsedLine line, final @NonNull List<Candidate> candidates, final @NonNull List<Completion> existing) {
+ //noinspection ConstantConditions
+ if (this.server.overworld() == null) { // check if overworld is null, as worlds haven't been loaded yet
+ return;
+ } else if (!io.papermc.paper.configuration.GlobalConfiguration.get().console.enableBrigadierCompletions) {
+ this.addCandidates(candidates, Collections.emptyList(), existing, new ParseContext(line.line(), 0));
+ return;
+ }
+ final CommandDispatcher<CommandSourceStack> dispatcher = this.server.getCommands().getDispatcher();
+ final ParseResults<CommandSourceStack> results = dispatcher.parse(new StringReader(line.line()), this.commandSourceStack.get());
+ this.addCandidates(
+ candidates,
+ dispatcher.getCompletionSuggestions(results, line.cursor()).join().getList(),
+ existing,
+ new ParseContext(line.line(), results.getContext().findSuggestionContext(line.cursor()).startPos)
+ );
+ }
+
+ private void addCandidates(
+ final @NonNull List<Candidate> candidates,
+ final @NonNull List<Suggestion> brigSuggestions,
+ final @NonNull List<Completion> existing,
+ final @NonNull ParseContext context
+ ) {
+ brigSuggestions.forEach(it -> {
+ if (it.getText().isEmpty()) return;
+ candidates.add(toCandidate(it, context));
+ });
+ for (final AsyncTabCompleteEvent.Completion completion : existing) {
+ if (completion.suggestion().isEmpty() || brigSuggestions.stream().anyMatch(it -> it.getText().equals(completion.suggestion()))) {
+ continue;
+ }
+ candidates.add(toCandidate(completion));
+ }
+ }
+
+ private static Candidate toCandidate(final Suggestion suggestion, final @NonNull ParseContext context) {
+ Component tooltip = null;
+ if (suggestion.getTooltip() != null) {
+ tooltip = PaperAdventure.asAdventure(ComponentUtils.fromMessage(suggestion.getTooltip()));
+ }
+ return toCandidate(context.line.substring(context.suggestionStart, suggestion.getRange().getStart()) + suggestion.getText(), tooltip);
+ }
+
+ private static @NonNull Candidate toCandidate(final @NonNull Completion completion) {
+ return toCandidate(completion.suggestion(), completion.tooltip());
+ }
+
+ private static @NonNull Candidate toCandidate(final @NonNull String suggestionText, final @Nullable Component tooltip) {
+ final String suggestionTooltip = PaperAdventure.ANSI_SERIALIZER.serializeOr(tooltip, null);
+ //noinspection SpellCheckingInspection
+ return new PaperCandidate(
+ suggestionText,
+ suggestionText,
+ null,
+ suggestionTooltip,
+ null,
+ null,
+ /*
+ in an ideal world, this would sometimes be true if the suggestion represented the final possible value for a word.
+ Like for `/execute alig`, pressing enter on align would add a trailing space if this value was true. But not all
+ suggestions should add spaces after, like `/execute as @`, accepting any suggestion here would be valid, but its also
+ valid to have a `[` following the selector
+ */
+ false
+ );
+ }
+
+ private static @NonNull Completion toCompletion(final @NonNull Suggestion suggestion) {
+ if (suggestion.getTooltip() == null) {
+ return completion(suggestion.getText());
+ }
+ return completion(suggestion.getText(), PaperAdventure.asAdventure(ComponentUtils.fromMessage(suggestion.getTooltip())));
+ }
+
+ private record ParseContext(String line, int suggestionStart) {
+ }
+
+ public static final class PaperCandidate extends Candidate {
+ public PaperCandidate(final String value, final String display, final String group, final String descr, final String suffix, final String key, final boolean complete) {
+ super(value, display, group, descr, suffix, key, complete);
+ }
+ }
+}
diff --git a/src/main/java/io/papermc/paper/console/BrigadierCommandHighlighter.java b/src/main/java/io/papermc/paper/console/BrigadierCommandHighlighter.java
new file mode 100644
index 0000000000000000000000000000000000000000..0b21dac4473e3ea8022ef5c17f5f7d4d49d3ac0a
--- /dev/null
+++ b/src/main/java/io/papermc/paper/console/BrigadierCommandHighlighter.java
@@ -0,0 +1,67 @@
+package io.papermc.paper.console;
+
+import com.google.common.base.Suppliers;
+import com.mojang.brigadier.ParseResults;
+import com.mojang.brigadier.StringReader;
+import com.mojang.brigadier.context.ParsedCommandNode;
+import com.mojang.brigadier.tree.LiteralCommandNode;
+import java.util.function.Supplier;
+import java.util.regex.Pattern;
+import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.server.dedicated.DedicatedServer;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.jline.reader.Highlighter;
+import org.jline.reader.LineReader;
+import org.jline.utils.AttributedString;
+import org.jline.utils.AttributedStringBuilder;
+import org.jline.utils.AttributedStyle;
+
+public final class BrigadierCommandHighlighter implements Highlighter {
+ private static final int[] COLORS = {AttributedStyle.CYAN, AttributedStyle.YELLOW, AttributedStyle.GREEN, AttributedStyle.MAGENTA, /* Client uses GOLD here, not BLUE, however there is no GOLD AttributedStyle. */ AttributedStyle.BLUE};
+ private final Supplier<CommandSourceStack> commandSourceStack;
+ private final DedicatedServer server;
+
+ public BrigadierCommandHighlighter(final @NonNull DedicatedServer server) {
+ this.server = server;
+ this.commandSourceStack = Suppliers.memoize(this.server::createCommandSourceStack);
+ }
+
+ @Override
+ public AttributedString highlight(final @NonNull LineReader reader, final @NonNull String buffer) {
+ //noinspection ConstantConditions
+ if (this.server.overworld() == null) { // check if overworld is null, as worlds haven't been loaded yet
+ return new AttributedString(buffer, AttributedStyle.DEFAULT.foreground(AttributedStyle.RED));
+ }
+ final AttributedStringBuilder builder = new AttributedStringBuilder();
+ final ParseResults<CommandSourceStack> results = this.server.getCommands().getDispatcher().parse(new StringReader(buffer), this.commandSourceStack.get());
+ int pos = 0;
+ int component = -1;
+ for (final ParsedCommandNode<CommandSourceStack> node : results.getContext().getLastChild().getNodes()) {
+ if (node.getRange().getStart() >= buffer.length()) {
+ break;
+ }
+ final int start = node.getRange().getStart();
+ final int end = Math.min(node.getRange().getEnd(), buffer.length());
+ builder.append(buffer.substring(pos, start), AttributedStyle.DEFAULT);
+ if (node.getNode() instanceof LiteralCommandNode) {
+ builder.append(buffer.substring(start, end), AttributedStyle.DEFAULT);
+ } else {
+ if (++component >= COLORS.length) {
+ component = 0;
+ }
+ builder.append(buffer.substring(start, end), AttributedStyle.DEFAULT.foreground(COLORS[component]));
+ }
+ pos = end;
+ }
+ if (pos < buffer.length()) {
+ builder.append((buffer.substring(pos)), AttributedStyle.DEFAULT.foreground(AttributedStyle.RED));
+ }
+ return builder.toAttributedString();
+ }
+
+ @Override
+ public void setErrorPattern(final Pattern errorPattern) {}
+
+ @Override
+ public void setErrorIndex(final int errorIndex) {}
+}
diff --git a/src/main/java/io/papermc/paper/console/BrigadierCompletionMatcher.java b/src/main/java/io/papermc/paper/console/BrigadierCompletionMatcher.java
new file mode 100644
index 0000000000000000000000000000000000000000..1e8028a43db0ff1d5b22d06ef12c1c32d992c09c
--- /dev/null
+++ b/src/main/java/io/papermc/paper/console/BrigadierCompletionMatcher.java
@@ -0,0 +1,27 @@
+package io.papermc.paper.console;
+
+import com.google.common.collect.Iterables;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.jline.reader.Candidate;
+import org.jline.reader.CompletingParsedLine;
+import org.jline.reader.LineReader;
+import org.jline.reader.impl.CompletionMatcherImpl;
+
+public class BrigadierCompletionMatcher extends CompletionMatcherImpl {
+
+ @Override
+ protected void defaultMatchers(final Map<LineReader.Option, Boolean> options, final boolean prefix, final CompletingParsedLine line, final boolean caseInsensitive, final int errors, final String originalGroupName) {
+ super.defaultMatchers(options, prefix, line, caseInsensitive, errors, originalGroupName);
+ this.matchers.addFirst(m -> {
+ final Map<String, List<Candidate>> candidates = new HashMap<>();
+ for (final Map.Entry<String, List<Candidate>> entry : m.entrySet()) {
+ if (Iterables.all(entry.getValue(), BrigadierCommandCompleter.PaperCandidate.class::isInstance)) {
+ candidates.put(entry.getKey(), entry.getValue());
+ }
+ }
+ return candidates;
+ });
+ }
+}
diff --git a/src/main/java/io/papermc/paper/console/BrigadierConsoleParser.java b/src/main/java/io/papermc/paper/console/BrigadierConsoleParser.java
new file mode 100644
index 0000000000000000000000000000000000000000..8239a8ba57f856cbbee237a601b3cabfce20ba26
--- /dev/null
+++ b/src/main/java/io/papermc/paper/console/BrigadierConsoleParser.java
@@ -0,0 +1,79 @@
+package io.papermc.paper.console;
+
+import com.mojang.brigadier.ImmutableStringReader;
+import com.mojang.brigadier.ParseResults;
+import com.mojang.brigadier.StringReader;
+import com.mojang.brigadier.context.CommandContextBuilder;
+import com.mojang.brigadier.context.ParsedCommandNode;
+import com.mojang.brigadier.context.StringRange;
+import java.util.ArrayList;
+import java.util.List;
+import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.server.dedicated.DedicatedServer;
+import org.jline.reader.ParsedLine;
+import org.jline.reader.Parser;
+import org.jline.reader.SyntaxError;
+
+public class BrigadierConsoleParser implements Parser {
+
+ private final DedicatedServer server;
+
+ public BrigadierConsoleParser(DedicatedServer server) {
+ this.server = server;
+ }
+
+ @Override
+ public ParsedLine parse(final String line, final int cursor, final ParseContext context) throws SyntaxError {
+ final ParseResults<CommandSourceStack> results = this.server.getCommands().getDispatcher().parse(new StringReader(line), this.server.createCommandSourceStack());
+ final ImmutableStringReader reader = results.getReader();
+ final List<String> words = new ArrayList<>();
+ CommandContextBuilder<CommandSourceStack> currentContext = results.getContext();
+ int currentWordIdx = -1;
+ int wordIdx = -1;
+ int inWordCursor = -1;
+ if (currentContext.getRange().getLength() > 0) {
+ do {
+ for (final ParsedCommandNode<CommandSourceStack> node : currentContext.getNodes()) {
+ final StringRange nodeRange = node.getRange();
+ String current = nodeRange.get(reader);
+ words.add(current);
+ currentWordIdx++;
+ if (wordIdx == -1 && nodeRange.getStart() <= cursor && nodeRange.getEnd() >= cursor) {
+ // if cursor is in the middle of a parsed word/node
+ wordIdx = currentWordIdx;
+ inWordCursor = cursor - nodeRange.getStart();
+ }
+ }
+ currentContext = currentContext.getChild();
+ } while (currentContext != null);
+ }
+ final String leftovers = reader.getRemaining();
+ if (!leftovers.isEmpty() && leftovers.isBlank()) {
+ // if brig didn't consume the whole line, and everything else is blank, add a new empty word
+ currentWordIdx++;
+ words.add("");
+ if (wordIdx == -1) {
+ wordIdx = currentWordIdx;
+ inWordCursor = 0;
+ }
+ } else if (!leftovers.isEmpty()) {
+ // if there are unparsed leftovers, add a new word with the remaining input
+ currentWordIdx++;
+ words.add(leftovers);
+ if (wordIdx == -1) {
+ wordIdx = currentWordIdx;
+ inWordCursor = cursor - reader.getCursor();
+ }
+ }
+ if (wordIdx == -1) {
+ currentWordIdx++;
+ words.add("");
+ wordIdx = currentWordIdx;
+ inWordCursor = 0;
+ }
+ return new BrigadierParsedLine(words.get(wordIdx), inWordCursor, wordIdx, words, line, cursor);
+ }
+
+ record BrigadierParsedLine(String word, int wordCursor, int wordIndex, List<String> words, String line, int cursor) implements ParsedLine {
+ }
+}
diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
index 9d05e998d6df1069c2de69478a1f9688ac435e67..7c92b2f0a59fe222ad13a998476e312bf571a1bf 100644
--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
@@ -187,7 +187,7 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
thread.setDaemon(true);
thread.setUncaughtExceptionHandler(new DefaultUncaughtExceptionHandler(DedicatedServer.LOGGER));
- thread.start();
+ // thread.start(); // Paper - Enhance console tab completions for brigadier commands; moved down
DedicatedServer.LOGGER.info("Starting minecraft server version {}", SharedConstants.getCurrentVersion().getName());
if (Runtime.getRuntime().maxMemory() / 1024L / 1024L < 512L) {
DedicatedServer.LOGGER.warn("To start the server with more ram, launch it as \"java -Xmx1024M -Xms1024M -jar minecraft_server.jar\"");
@@ -220,6 +220,7 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
this.getPlayerList().loadAndSaveFiles(); // Must be after convertNames
// Paper end - fix converting txt to json file
org.spigotmc.WatchdogThread.doStart(org.spigotmc.SpigotConfig.timeoutTime, org.spigotmc.SpigotConfig.restartOnCrash); // Paper - start watchdog thread
+ thread.start(); // Paper - Enhance console tab completions for brigadier commands; start console thread after MinecraftServer.console & PaperConfig are initialized
io.papermc.paper.command.PaperCommands.registerCommands(this); // Paper - setup /paper command
com.destroystokyo.paper.Metrics.PaperMetrics.startMetrics(); // Paper - start metrics
com.destroystokyo.paper.VersionHistoryManager.INSTANCE.getClass(); // Paper - load version history now
diff --git a/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java b/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
index 15bc85f4799a4b23edd2f1e93f1794de5ca3e8e3..a45e658996e483e9a21cfd8178153ddb7b87ae69 100644
--- a/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
+++ b/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
@@ -18,9 +18,11 @@ import org.bukkit.event.server.TabCompleteEvent;
public class ConsoleCommandCompleter implements Completer {
private final DedicatedServer server; // Paper - CraftServer -> DedicatedServer
+ private final io.papermc.paper.console.BrigadierCommandCompleter brigadierCompleter; // Paper - Enhance console tab completions for brigadier commands
public ConsoleCommandCompleter(DedicatedServer server) { // Paper - CraftServer -> DedicatedServer
this.server = server;
+ this.brigadierCompleter = new io.papermc.paper.console.BrigadierCommandCompleter(this.server); // Paper - Enhance console tab completions for brigadier commands
}
// Paper start - Change method signature for JLine update
@@ -64,7 +66,7 @@ public class ConsoleCommandCompleter implements Completer {
}
}
- if (!completions.isEmpty()) {
+ if (false && !completions.isEmpty()) {
for (final com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion completion : completions) {
if (completion.suggestion().isEmpty()) {
continue;
@@ -80,6 +82,7 @@ public class ConsoleCommandCompleter implements Completer {
));
}
}
+ this.addCompletions(reader, line, candidates, completions);
return;
}
@@ -99,10 +102,12 @@ public class ConsoleCommandCompleter implements Completer {
try {
List<String> offers = waitable.get();
if (offers == null) {
+ this.addCompletions(reader, line, candidates, Collections.emptyList()); // Paper - Enhance console tab completions for brigadier commands
return; // Paper - Method returns void
}
// Paper start - JLine update
+ /*
for (String completion : offers) {
if (completion.isEmpty()) {
continue;
@@ -110,6 +115,8 @@ public class ConsoleCommandCompleter implements Completer {
candidates.add(new Candidate(completion));
}
+ */
+ this.addCompletions(reader, line, candidates, offers.stream().map(com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion::completion).collect(java.util.stream.Collectors.toList()));
// Paper end
// Paper start - JLine handles cursor now
@@ -138,5 +145,9 @@ public class ConsoleCommandCompleter implements Completer {
}
return false;
}
+
+ private void addCompletions(final LineReader reader, final ParsedLine line, final List<Candidate> candidates, final List<com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion> existing) {
+ this.brigadierCompleter.complete(reader, line, candidates, existing);
+ }
// Paper end
}
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