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geforkt von Mirrors/Paper
Paper/Spigot-API-Patches/0008-Version-Command-2.0.patch
Zach Brown 70ce6ce831
Move version command update checking to the implementation
This makes it easier for downstream projects (forks) to replace the
version fetching system with their own. It is as simple as implementing
an interface and overriding the default implementation of
org.bukkit.UnsafeValues#getVersionFetcher()

It also makes it easier for us to organize things like the version
history feature.

Lastly I have updated the paper implementation to check against the site
API rather than against jenkins.
2019-05-27 04:13:41 -05:00

181 Zeilen
6.8 KiB
Diff

From b96066e41b3d03c005b1e571dd042769b787725c Mon Sep 17 00:00:00 2001
From: Zach Brown <zach@zachbr.io>
Date: Mon, 27 May 2019 01:10:06 -0500
Subject: [PATCH] Version Command 2.0
diff --git a/src/main/java/com/destroystokyo/paper/util/VersionFetcher.java b/src/main/java/com/destroystokyo/paper/util/VersionFetcher.java
new file mode 100644
index 00000000..2a265129
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/VersionFetcher.java
@@ -0,0 +1,44 @@
+package com.destroystokyo.paper.util;
+
+import org.bukkit.Bukkit;
+import org.jetbrains.annotations.NotNull;
+
+public interface VersionFetcher {
+ /**
+ * Amount of time to cache results for in milliseconds
+ * <p>
+ * Negative values will never cache.
+ *
+ * @return cache time
+ */
+ long getCacheTime();
+
+ /**
+ * Gets the version message to cache and show to command senders. Multiple messages can be sent using newlines (\n)
+ * in the string. The string will be split on these newlines and sent as individual messages.
+ * <p>
+ * NOTE: This is run in a new thread separate from that of the command processing thread
+ *
+ * @param serverVersion the current version of the server (will match {@link Bukkit#getVersion()})
+ * @return the message to show when requesting a version
+ */
+ @NotNull
+ String getVersionMessage(@NotNull String serverVersion);
+
+ class DummyVersionFetcher implements VersionFetcher {
+
+ @Override
+ public long getCacheTime() {
+ return -1;
+ }
+
+ @NotNull
+ @Override
+ public String getVersionMessage(@NotNull String serverVersion) {
+ Bukkit.getLogger().warning("Version provider has not been set, cannot check for updates!");
+ Bukkit.getLogger().info("Override the default implementation of org.bukkit.UnsafeValues#getVersionFetcher()");
+ new Throwable().printStackTrace();
+ return "Unable to check for updates. No version provider set.";
+ }
+ }
+}
diff --git a/src/main/java/org/bukkit/UnsafeValues.java b/src/main/java/org/bukkit/UnsafeValues.java
index 72c5501e..c0ff133d 100644
--- a/src/main/java/org/bukkit/UnsafeValues.java
+++ b/src/main/java/org/bukkit/UnsafeValues.java
@@ -76,5 +76,12 @@ public interface UnsafeValues {
* @return name
*/
String getTimingsServerName();
+
+ /**
+ * Called once by the version command on first use, then cached.
+ */
+ default com.destroystokyo.paper.util.VersionFetcher getVersionFetcher() {
+ return new com.destroystokyo.paper.util.VersionFetcher.DummyVersionFetcher();
+ }
// Paper end
}
diff --git a/src/main/java/org/bukkit/command/defaults/VersionCommand.java b/src/main/java/org/bukkit/command/defaults/VersionCommand.java
index cbce5244..0486abd1 100644
--- a/src/main/java/org/bukkit/command/defaults/VersionCommand.java
+++ b/src/main/java/org/bukkit/command/defaults/VersionCommand.java
@@ -1,5 +1,6 @@
package org.bukkit.command.defaults;
+import com.destroystokyo.paper.util.VersionFetcher; // Paper - version supplier
import com.google.common.base.Charsets;
import com.google.common.collect.ImmutableList;
import com.google.common.io.Resources;
@@ -26,6 +27,15 @@ import org.bukkit.util.StringUtil;
import org.jetbrains.annotations.NotNull;
public class VersionCommand extends BukkitCommand {
+ private VersionFetcher versionFetcher;
+ private VersionFetcher getVersionFetcher() { // lazy load because unsafe isn't available at command registration
+ if (versionFetcher == null) {
+ versionFetcher = Bukkit.getUnsafe().getVersionFetcher();
+ }
+
+ return versionFetcher;
+ }
+
public VersionCommand(@NotNull String name) {
super(name);
@@ -150,18 +160,18 @@ public class VersionCommand extends BukkitCommand {
private void sendVersion(@NotNull CommandSender sender) {
if (hasVersion) {
- if (System.currentTimeMillis() - lastCheck > 21600000) {
+ if (System.currentTimeMillis() - lastCheck > getVersionFetcher().getCacheTime()) { // Paper - use version supplier
lastCheck = System.currentTimeMillis();
hasVersion = false;
} else {
- sender.sendMessage(versionMessage);
+ sendMessages(versionMessage, sender); // Paper - allow \n for multiple messages
return;
}
}
versionLock.lock();
try {
if (hasVersion) {
- sender.sendMessage(versionMessage);
+ sendMessages(versionMessage, sender); // Paper - allow \n for multiple messages
return;
}
versionWaiters.add(sender);
@@ -183,7 +193,12 @@ public class VersionCommand extends BukkitCommand {
private void obtainVersion() {
String version = Bukkit.getVersion();
- if (version == null) version = "Custom";
+ // Paper start
+ if (version.startsWith("null")) { // running from ide?
+ setVersionMessage("Unknown version, custom build?");
+ return;
+ }
+ /*
if (version.startsWith("git-Spigot-")) {
String[] parts = version.substring("git-Spigot-".length()).split("-");
int cbVersions = getDistance("craftbukkit", parts[1].substring(0, parts[1].indexOf(' ')));
@@ -213,6 +228,9 @@ public class VersionCommand extends BukkitCommand {
} else {
setVersionMessage("Unknown version, custom build?");
}
+ */
+ setVersionMessage(getVersionFetcher().getVersionMessage(version));
+ // Paper end
}
private void setVersionMessage(@NotNull String msg) {
@@ -222,8 +240,13 @@ public class VersionCommand extends BukkitCommand {
try {
hasVersion = true;
versionTaskStarted = false;
+ // Paper - allow \n for multiple messages
+ String[] messages = versionMessage.split("\n");
for (CommandSender sender : versionWaiters) {
- sender.sendMessage(versionMessage);
+ for (String message : messages) {
+ sender.sendMessage(message);
+ }
+ // Paper end
}
versionWaiters.clear();
} finally {
@@ -231,6 +254,15 @@ public class VersionCommand extends BukkitCommand {
}
}
+ // Paper start
+ private void sendMessages(String toSplit, CommandSender target) {
+ String[] messages = toSplit.split("\n");
+ for (String message : messages) {
+ target.sendMessage(message);
+ }
+ }
+ // Paper end
+
private static int getDistance(@NotNull String repo, @NotNull String hash) {
try {
BufferedReader reader = Resources.asCharSource(
--
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