PaperMC/Spigot-API-Patches/0091-Add-version-history-to-version-command.patch
Shane Freeder 1e39773b53
Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
9d0221aa API to get client side view distance.
9be7f0ea SPIGOT-4395: Additions to PlayerBedEnterEvent.
01e534c6 Minor cosmetic cleanups to imports etc

CraftBukkit Changes:
96c461b3 API to get client side view distance.
e2785f4e Remove note about development build
a8000588 SPIGOT-4395: Additions to PlayerBedEnterEvent.

Spigot Changes:
117d4f7e Rebuild patches
2018-11-03 00:29:57 +00:00

201 lines
7 KiB
Diff

From 34043f0447c8342e21d4a3e64a0991a7cb00a46c Mon Sep 17 00:00:00 2001
From: Kyle Wood <demonwav@gmail.com>
Date: Thu, 1 Mar 2018 19:37:52 -0600
Subject: [PATCH] Add version history to version command
diff --git a/src/main/java/com/destroystokyo/paper/VersionHistoryManager.java b/src/main/java/com/destroystokyo/paper/VersionHistoryManager.java
new file mode 100644
index 000000000..1daaca2fd
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/VersionHistoryManager.java
@@ -0,0 +1,143 @@
+package com.destroystokyo.paper;
+
+import com.google.common.base.MoreObjects;
+import com.google.gson.Gson;
+import com.google.gson.JsonSyntaxException;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardOpenOption;
+import java.util.Objects;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import javax.annotation.Nullable;
+import org.bukkit.Bukkit;
+
+public enum VersionHistoryManager {
+ INSTANCE;
+
+ private final Gson gson = new Gson();
+
+ private final Logger logger = Bukkit.getLogger();
+
+ private VersionData currentData = null;
+
+ VersionHistoryManager() {
+ final Path path = Paths.get("version_history.json");
+
+ if (Files.exists(path)) {
+ // Basic file santiy checks
+ if (!Files.isRegularFile(path)) {
+ if (Files.isDirectory(path)) {
+ logger.severe(path + " is a directory, cannot be used for version history");
+ } else {
+ logger.severe(path + " is not a regular file, cannot be used for version history");
+ }
+ // We can't continue
+ return;
+ }
+
+ try (final BufferedReader reader = Files.newBufferedReader(path, StandardCharsets.UTF_8)) {
+ currentData = gson.fromJson(reader, VersionData.class);
+ } catch (final IOException e) {
+ logger.log(Level.SEVERE, "Failed to read version history file '" + path + "'", e);
+ return;
+ } catch (final JsonSyntaxException e) {
+ logger.log(Level.SEVERE, "Invalid json syntax for file '" + path + "'", e);
+ return;
+ }
+
+ final String version = Bukkit.getVersion();
+ if (version == null) {
+ logger.severe("Failed to retrieve current version");
+ return;
+ }
+
+ if (!version.equals(currentData.getCurrentVersion())) {
+ // The version appears to have changed
+ currentData.setOldVersion(currentData.getCurrentVersion());
+ currentData.setCurrentVersion(version);
+ writeFile(path);
+ }
+ } else {
+ // File doesn't exist, start fresh
+ currentData = new VersionData();
+ // oldVersion is null
+ currentData.setCurrentVersion(Bukkit.getVersion());
+ writeFile(path);
+ }
+ }
+
+ private void writeFile(final Path path) {
+ try (final BufferedWriter writer = Files.newBufferedWriter(
+ path,
+ StandardCharsets.UTF_8,
+ StandardOpenOption.WRITE,
+ StandardOpenOption.CREATE,
+ StandardOpenOption.TRUNCATE_EXISTING
+ )) {
+ gson.toJson(currentData, writer);
+ } catch (final IOException e) {
+ logger.log(Level.SEVERE, "Failed to write to version history file", e);
+ }
+ }
+
+ @Nullable
+ public VersionData getVersionData() {
+ return currentData;
+ }
+
+ public class VersionData {
+ private String oldVersion;
+
+ private String currentVersion;
+
+ @Nullable
+ public String getOldVersion() {
+ return oldVersion;
+ }
+
+ public void setOldVersion(@Nullable String oldVersion) {
+ this.oldVersion = oldVersion;
+ }
+
+ @Nullable
+ public String getCurrentVersion() {
+ return currentVersion;
+ }
+
+ public void setCurrentVersion(@Nullable String currentVersion) {
+ this.currentVersion = currentVersion;
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(this)
+ .add("oldVersion", oldVersion)
+ .add("currentVersion", currentVersion)
+ .toString();
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (this == o) {
+ return true;
+ }
+ if (o == null || getClass() != o.getClass()) {
+ return false;
+ }
+ final VersionData versionData = (VersionData) o;
+ return Objects.equals(oldVersion, versionData.oldVersion) &&
+ Objects.equals(currentVersion, versionData.currentVersion);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(oldVersion, currentVersion);
+ }
+ }
+}
diff --git a/src/main/java/org/bukkit/command/defaults/VersionCommand.java b/src/main/java/org/bukkit/command/defaults/VersionCommand.java
index f38f68640..5cebb2454 100644
--- a/src/main/java/org/bukkit/command/defaults/VersionCommand.java
+++ b/src/main/java/org/bukkit/command/defaults/VersionCommand.java
@@ -29,6 +29,7 @@ import org.json.simple.parser.ParseException;
// Paper start
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
+import com.destroystokyo.paper.VersionHistoryManager;
// Paper end
public class VersionCommand extends BukkitCommand {
@@ -47,6 +48,7 @@ public class VersionCommand extends BukkitCommand {
if (args.length == 0) {
sender.sendMessage("This server is running " + Bukkit.getName() + " version " + Bukkit.getVersion() + " (Implementing API version " + Bukkit.getBukkitVersion() + ")");
+ tellHistory(sender); // Paper
sendVersion(sender);
} else {
StringBuilder name = new StringBuilder();
@@ -83,6 +85,22 @@ public class VersionCommand extends BukkitCommand {
return true;
}
+ // Paper start - show version history
+ private void tellHistory(final CommandSender sender) {
+ final VersionHistoryManager.VersionData data = VersionHistoryManager.INSTANCE.getVersionData();
+ if (data == null) {
+ return;
+ }
+
+ final String oldVersion = data.getOldVersion();
+ if (oldVersion == null) {
+ return;
+ }
+
+ sender.sendMessage("Previous version: " + oldVersion);
+ }
+ // Paper end
+
private void describeToSender(Plugin plugin, CommandSender sender) {
PluginDescriptionFile desc = plugin.getDescription();
sender.sendMessage(ChatColor.GREEN + desc.getName() + ChatColor.WHITE + " version " + ChatColor.GREEN + desc.getVersion());
--
2.19.1