mirror of
https://github.com/PaperMC/Paper.git
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191 lines
7.4 KiB
Diff
191 lines
7.4 KiB
Diff
From b23ef215ad1b3b0fa3048ea44fd244d0e42164a6 Mon Sep 17 00:00:00 2001
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From: Zach Brown <zach@zachbr.io>
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Date: Mon, 27 May 2019 01:10:06 -0500
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Subject: [PATCH] Version Command 2.0
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diff --git a/src/main/java/com/destroystokyo/paper/util/VersionFetcher.java b/src/main/java/com/destroystokyo/paper/util/VersionFetcher.java
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new file mode 100644
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index 00000000..2a265129
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/util/VersionFetcher.java
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@@ -0,0 +1,44 @@
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+package com.destroystokyo.paper.util;
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+
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+import org.bukkit.Bukkit;
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+import org.jetbrains.annotations.NotNull;
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+
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+public interface VersionFetcher {
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+ /**
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+ * Amount of time to cache results for in milliseconds
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+ * <p>
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+ * Negative values will never cache.
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+ *
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+ * @return cache time
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+ */
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+ long getCacheTime();
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+
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+ /**
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+ * Gets the version message to cache and show to command senders. Multiple messages can be sent using newlines (\n)
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+ * in the string. The string will be split on these newlines and sent as individual messages.
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+ * <p>
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+ * NOTE: This is run in a new thread separate from that of the command processing thread
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+ *
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+ * @param serverVersion the current version of the server (will match {@link Bukkit#getVersion()})
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+ * @return the message to show when requesting a version
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+ */
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+ @NotNull
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+ String getVersionMessage(@NotNull String serverVersion);
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+
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+ class DummyVersionFetcher implements VersionFetcher {
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+
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+ @Override
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+ public long getCacheTime() {
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+ return -1;
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+ }
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+
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+ @NotNull
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+ @Override
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+ public String getVersionMessage(@NotNull String serverVersion) {
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+ Bukkit.getLogger().warning("Version provider has not been set, cannot check for updates!");
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+ Bukkit.getLogger().info("Override the default implementation of org.bukkit.UnsafeValues#getVersionFetcher()");
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+ new Throwable().printStackTrace();
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+ return "Unable to check for updates. No version provider set.";
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+ }
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+ }
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+}
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diff --git a/src/main/java/org/bukkit/UnsafeValues.java b/src/main/java/org/bukkit/UnsafeValues.java
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index 72c5501e..c0ff133d 100644
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--- a/src/main/java/org/bukkit/UnsafeValues.java
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+++ b/src/main/java/org/bukkit/UnsafeValues.java
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@@ -76,5 +76,12 @@ public interface UnsafeValues {
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* @return name
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*/
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String getTimingsServerName();
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+
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+ /**
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+ * Called once by the version command on first use, then cached.
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+ */
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+ default com.destroystokyo.paper.util.VersionFetcher getVersionFetcher() {
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+ return new com.destroystokyo.paper.util.VersionFetcher.DummyVersionFetcher();
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+ }
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// Paper end
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}
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diff --git a/src/main/java/org/bukkit/command/defaults/VersionCommand.java b/src/main/java/org/bukkit/command/defaults/VersionCommand.java
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index 9d8360f7..b3345cba 100644
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--- a/src/main/java/org/bukkit/command/defaults/VersionCommand.java
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+++ b/src/main/java/org/bukkit/command/defaults/VersionCommand.java
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@@ -1,5 +1,6 @@
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package org.bukkit.command.defaults;
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+import com.destroystokyo.paper.util.VersionFetcher; // Paper - version supplier
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import com.google.common.base.Charsets;
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import com.google.common.collect.ImmutableList;
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import com.google.common.io.Resources;
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@@ -26,6 +27,15 @@ import org.bukkit.util.StringUtil;
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import org.jetbrains.annotations.NotNull;
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public class VersionCommand extends BukkitCommand {
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+ private VersionFetcher versionFetcher;
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+ private VersionFetcher getVersionFetcher() { // lazy load because unsafe isn't available at command registration
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+ if (versionFetcher == null) {
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+ versionFetcher = Bukkit.getUnsafe().getVersionFetcher();
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+ }
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+
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+ return versionFetcher;
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+ }
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+
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public VersionCommand(@NotNull String name) {
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super(name);
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@@ -41,8 +51,7 @@ public class VersionCommand extends BukkitCommand {
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if (args.length == 0) {
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sender.sendMessage("This server is running " + Bukkit.getName() + " version " + Bukkit.getVersion() + " (Implementing API version " + Bukkit.getBukkitVersion() + ")");
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- sender.sendMessage(ChatColor.YELLOW + "This is a final build for 1.14.4. Please see https://www.spigotmc.org/go/1.14.4 for details about upgrading.");
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- // sendVersion(sender);
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+ sendVersion(sender); // Paper - Not dead yet, Jim!
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} else {
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StringBuilder name = new StringBuilder();
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@@ -151,18 +160,18 @@ public class VersionCommand extends BukkitCommand {
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private void sendVersion(@NotNull CommandSender sender) {
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if (hasVersion) {
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- if (System.currentTimeMillis() - lastCheck > 21600000) {
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+ if (System.currentTimeMillis() - lastCheck > getVersionFetcher().getCacheTime()) { // Paper - use version supplier
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lastCheck = System.currentTimeMillis();
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hasVersion = false;
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} else {
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- sender.sendMessage(versionMessage);
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+ sendMessages(versionMessage, sender); // Paper - allow \n for multiple messages
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return;
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}
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}
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versionLock.lock();
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try {
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if (hasVersion) {
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- sender.sendMessage(versionMessage);
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+ sendMessages(versionMessage, sender); // Paper - allow \n for multiple messages
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return;
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}
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versionWaiters.add(sender);
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@@ -184,7 +193,12 @@ public class VersionCommand extends BukkitCommand {
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private void obtainVersion() {
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String version = Bukkit.getVersion();
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- if (version == null) version = "Custom";
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+ // Paper start
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+ if (version.startsWith("null")) { // running from ide?
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+ setVersionMessage("Unknown version, custom build?");
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+ return;
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+ }
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+ /*
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if (version.startsWith("git-Spigot-")) {
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String[] parts = version.substring("git-Spigot-".length()).split("-");
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int cbVersions = getDistance("craftbukkit", parts[1].substring(0, parts[1].indexOf(' ')));
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@@ -214,6 +228,9 @@ public class VersionCommand extends BukkitCommand {
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} else {
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setVersionMessage("Unknown version, custom build?");
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}
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+ */
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+ setVersionMessage(getVersionFetcher().getVersionMessage(version));
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+ // Paper end
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}
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private void setVersionMessage(@NotNull String msg) {
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@@ -223,8 +240,13 @@ public class VersionCommand extends BukkitCommand {
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try {
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hasVersion = true;
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versionTaskStarted = false;
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+ // Paper - allow \n for multiple messages
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+ String[] messages = versionMessage.split("\n");
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for (CommandSender sender : versionWaiters) {
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- sender.sendMessage(versionMessage);
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+ for (String message : messages) {
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+ sender.sendMessage(message);
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+ }
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+ // Paper end
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}
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versionWaiters.clear();
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} finally {
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@@ -232,6 +254,15 @@ public class VersionCommand extends BukkitCommand {
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}
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}
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+ // Paper start
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+ private void sendMessages(String toSplit, CommandSender target) {
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+ String[] messages = toSplit.split("\n");
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+ for (String message : messages) {
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+ target.sendMessage(message);
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+ }
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+ }
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+ // Paper end
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+
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private static int getDistance(@NotNull String repo, @NotNull String hash) {
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try {
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BufferedReader reader = Resources.asCharSource(
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--
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2.24.0
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