Expose server build information

Co-authored-by: Professor Bloodstone <git@bloodstone.dev>
Co-authored-by: Mark Vainomaa <mikroskeem@mikroskeem.eu>
Co-authored-by: masmc05 <masmc05@gmail.com>
Co-authored-by: Riley Park <rileysebastianpark@gmail.com>
This commit is contained in:
Zach Brown 2019-05-27 01:10:06 -05:00
parent 376251dab7
commit 05ec73f817
9 changed files with 369 additions and 9 deletions

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@ -0,0 +1,47 @@
package com.destroystokyo.paper.util;
import net.kyori.adventure.text.Component;
import net.kyori.adventure.text.format.NamedTextColor;
import org.bukkit.Bukkit;
import org.jetbrains.annotations.ApiStatus;
import org.jspecify.annotations.NullMarked;
@NullMarked
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.
*
* <p>NOTE: This is run in a new thread separate from that of the command processing thread</p>
*
* @param serverVersion the current version of the server (will match {@link Bukkit#getVersion()})
* @return the message to show when requesting a version
*/
Component getVersionMessage(String serverVersion);
@ApiStatus.Internal
class DummyVersionFetcher implements VersionFetcher {
@Override
public long getCacheTime() {
return -1;
}
@Override
public Component getVersionMessage(final 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 Component.text("Unable to check for updates. No version provider set.", NamedTextColor.RED);
}
}
}

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@ -0,0 +1,122 @@
package io.papermc.paper;
import java.time.Instant;
import java.util.Optional;
import java.util.OptionalInt;
import net.kyori.adventure.key.Key;
import net.kyori.adventure.util.Services;
import org.jetbrains.annotations.ApiStatus;
import org.jspecify.annotations.NullMarked;
/**
* Information about the current server build.
*/
@NullMarked
@ApiStatus.NonExtendable
public interface ServerBuildInfo {
/**
* The brand id for Paper.
*/
Key BRAND_PAPER_ID = Key.key("papermc", "paper");
/**
* Gets the {@code ServerBuildInfo}.
*
* @return the {@code ServerBuildInfo}
*/
static ServerBuildInfo buildInfo() {
//<editor-fold defaultstate="collapsed" desc="Holder">
final class Holder {
static final Optional<ServerBuildInfo> INSTANCE = Services.service(ServerBuildInfo.class);
}
//</editor-fold>
return Holder.INSTANCE.orElseThrow();
}
/**
* Gets the brand id of the server.
*
* @return the brand id of the server (e.g. "papermc:paper")
*/
Key brandId();
/**
* Checks if the current server supports the specified brand.
*
* @param brandId the brand to check (e.g. "papermc:folia")
* @return {@code true} if the server supports the specified brand
*/
@ApiStatus.Experimental
boolean isBrandCompatible(final Key brandId);
/**
* Gets the brand name of the server.
*
* @return the brand name of the server (e.g. "Paper")
*/
String brandName();
/**
* Gets the Minecraft version id.
*
* @return the Minecraft version id (e.g. "1.20.4", "1.20.2-pre2", "23w31a")
*/
String minecraftVersionId();
/**
* Gets the Minecraft version name.
*
* @return the Minecraft version name (e.g. "1.20.4", "1.20.2 Pre-release 2", "23w31a")
*/
String minecraftVersionName();
/**
* Gets the build number.
*
* @return the build number
*/
OptionalInt buildNumber();
/**
* Gets the build time.
*
* @return the build time
*/
Instant buildTime();
/**
* Gets the git commit branch.
*
* @return the git commit branch
*/
Optional<String> gitBranch();
/**
* Gets the git commit hash.
*
* @return the git commit hash
*/
Optional<String> gitCommit();
/**
* Creates a string representation of the server build information.
*
* @param representation the type of representation
* @return a string
*/
String asString(final StringRepresentation representation);
/**
* String representation types.
*/
enum StringRepresentation {
/**
* A simple version string, in format {@code <minecraftVersionId>-<buildNumber>-<gitCommit>}.
*/
VERSION_SIMPLE,
/**
* A simple version string, in format {@code <minecraftVersionId>-<buildNumber>-<gitBranch>@<gitCommit> (<buildTime>)}.
*/
VERSION_FULL,
}
}

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@ -0,0 +1,38 @@
package io.papermc.paper.util;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Collections;
import java.util.Map;
import java.util.WeakHashMap;
import java.util.jar.Manifest;
import org.jetbrains.annotations.ApiStatus;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;
@NullMarked
@ApiStatus.Internal
public final class JarManifests {
private JarManifests() {
}
private static final Map<ClassLoader, Manifest> MANIFESTS = Collections.synchronizedMap(new WeakHashMap<>());
public static @Nullable Manifest manifest(final Class<?> clazz) {
return MANIFESTS.computeIfAbsent(clazz.getClassLoader(), classLoader -> {
final String classLocation = "/" + clazz.getName().replace(".", "/") + ".class";
final URL resource = clazz.getResource(classLocation);
if (resource == null) {
return null;
}
final String classFilePath = resource.toString().replace("\\", "/");
final String archivePath = classFilePath.substring(0, classFilePath.length() - classLocation.length());
try (final InputStream stream = new URL(archivePath + "/META-INF/MANIFEST.MF").openStream()) {
return new Manifest(stream);
} catch (final IOException ex) {
return null;
}
});
}
}

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@ -110,13 +110,26 @@ public final class Bukkit {
}
Bukkit.server = server;
server.getLogger().info("This server is running " + getName() + " version " + getVersion() + " (Implementing API version " + getBukkitVersion() + ")");
// Paper start - add git information
server.getLogger().info(getVersionMessage());
}
/**
* Gets message describing the version server is running.
*
* @return message describing the version server is running
*/
@NotNull
public static String getVersionMessage() {
final io.papermc.paper.ServerBuildInfo version = io.papermc.paper.ServerBuildInfo.buildInfo();
return "This server is running " + getName() + " version " + version.asString(io.papermc.paper.ServerBuildInfo.StringRepresentation.VERSION_FULL) + " (Implementing API version " + getBukkitVersion() + ")";
// Paper end
}
/**
* Gets the name of this server implementation.
*
* @return name of this server implementation
* @see io.papermc.paper.ServerBuildInfo#brandName()
*/
@NotNull
public static String getName() {
@ -127,6 +140,7 @@ public final class Bukkit {
* Gets the version string of this server implementation.
*
* @return version of this server implementation
* @see io.papermc.paper.ServerBuildInfo
*/
@NotNull
public static String getVersion() {
@ -143,6 +157,20 @@ public final class Bukkit {
return server.getBukkitVersion();
}
// Paper start - expose game version
/**
* Gets the version of game this server implements
*
* @return version of game
* @see io.papermc.paper.ServerBuildInfo#minecraftVersionId()
* @see io.papermc.paper.ServerBuildInfo#minecraftVersionName()
*/
@NotNull
public static String getMinecraftVersion() {
return server.getMinecraftVersion();
}
// Paper end
/**
* Gets a view of all currently logged in players. This {@linkplain
* Collections#unmodifiableCollection(Collection) view} is a reused

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@ -120,6 +120,16 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
@NotNull
public String getBukkitVersion();
// Paper start - expose game version
/**
* Gets the version of game this server implements
*
* @return version of game
*/
@NotNull
String getMinecraftVersion();
// Paper end
/**
* Gets a view of all currently logged in players. This {@linkplain
* Collections#unmodifiableCollection(Collection) view} is a reused

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@ -156,4 +156,13 @@ public interface UnsafeValues {
return !Bukkit.getUnsafe().isSupportedApiVersion(plugin.getDescription().getAPIVersion());
}
// Paper end
// Paper start
/**
* 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
}

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@ -25,8 +25,25 @@ import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.PluginDescriptionFile;
import org.bukkit.util.StringUtil;
import org.jetbrains.annotations.NotNull;
// Paper start - version command 2.0
import com.destroystokyo.paper.util.VersionFetcher;
import net.kyori.adventure.text.Component;
import net.kyori.adventure.text.format.NamedTextColor;
import net.kyori.adventure.text.event.ClickEvent;
import net.kyori.adventure.text.format.TextDecoration;
import net.kyori.adventure.text.serializer.plain.PlainTextComponentSerializer;
// Paper end - version command 2.0
public class VersionCommand extends BukkitCommand {
private VersionFetcher versionFetcher; // Paper - version command 2.0
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);
@ -41,7 +58,7 @@ public class VersionCommand extends BukkitCommand {
if (!testPermission(sender)) return true;
if (args.length == 0) {
sender.sendMessage("This server is running " + Bukkit.getName() + " version " + Bukkit.getVersion() + " (Implementing API version " + Bukkit.getBukkitVersion() + ")");
//sender.sendMessage("This server is running " + Bukkit.getName() + " version " + Bukkit.getVersion() + " (Implementing API version " + Bukkit.getBukkitVersion() + ")"); // Paper - moved to setVersionMessage
sendVersion(sender);
} else {
StringBuilder name = new StringBuilder();
@ -80,8 +97,17 @@ public class VersionCommand extends BukkitCommand {
private void describeToSender(@NotNull Plugin plugin, @NotNull CommandSender sender) {
PluginDescriptionFile desc = plugin.getDescription();
sender.sendMessage(ChatColor.GREEN + desc.getName() + ChatColor.WHITE + " version " + ChatColor.GREEN + desc.getVersion());
// Paper start - version command 2.0
sender.sendMessage(
Component.text()
.append(Component.text(desc.getName(), NamedTextColor.GREEN))
.append(Component.text(" version "))
.append(Component.text(desc.getVersion(), NamedTextColor.GREEN)
.hoverEvent(Component.text("Click to copy to clipboard", NamedTextColor.WHITE))
.clickEvent(ClickEvent.copyToClipboard(desc.getVersion()))
)
);
// Paper end - version command 2.0
if (desc.getDescription() != null) {
sender.sendMessage(desc.getDescription());
}
@ -147,14 +173,14 @@ public class VersionCommand extends BukkitCommand {
private final ReentrantLock versionLock = new ReentrantLock();
private boolean hasVersion = false;
private String versionMessage = null;
private Component versionMessage = null; // Paper
private final Set<CommandSender> versionWaiters = new HashSet<CommandSender>();
private boolean versionTaskStarted = false;
private long lastCheck = 0;
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 {
@ -169,7 +195,7 @@ public class VersionCommand extends BukkitCommand {
return;
}
versionWaiters.add(sender);
sender.sendMessage("Checking version, please wait...");
sender.sendMessage(Component.text("Checking version, please wait...", NamedTextColor.WHITE, TextDecoration.ITALIC)); // Paper
if (!versionTaskStarted) {
versionTaskStarted = true;
new Thread(new Runnable() {
@ -187,6 +213,13 @@ public class VersionCommand extends BukkitCommand {
private void obtainVersion() {
String version = Bukkit.getVersion();
// Paper start
if (version.startsWith("null")) { // running from ide?
setVersionMessage(Component.text("Unknown version, custom build?", NamedTextColor.YELLOW));
return;
}
setVersionMessage(getVersionFetcher().getVersionMessage(version));
/*
if (version == null) version = "Custom";
String[] parts = version.substring(0, version.indexOf(' ')).split("-");
if (parts.length == 4) {
@ -216,11 +249,24 @@ public class VersionCommand extends BukkitCommand {
} else {
setVersionMessage("Unknown version, custom build?");
}
*/
// Paper end
}
private void setVersionMessage(@NotNull String msg) {
// Paper start
private void setVersionMessage(final @NotNull Component msg) {
lastCheck = System.currentTimeMillis();
versionMessage = msg;
final Component message = Component.textOfChildren(
Component.text(Bukkit.getVersionMessage(), NamedTextColor.WHITE),
Component.newline(),
msg
);
this.versionMessage = Component.text()
.append(message)
.hoverEvent(Component.text("Click to copy to clipboard", NamedTextColor.WHITE))
.clickEvent(ClickEvent.copyToClipboard(PlainTextComponentSerializer.plainText().serialize(message)))
.build();
// Paper end
versionLock.lock();
try {
hasVersion = true;

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@ -0,0 +1,59 @@
package io.papermc.paper;
import java.time.Instant;
import java.util.Optional;
import java.util.OptionalInt;
import net.kyori.adventure.key.Key;
import org.jetbrains.annotations.NotNull;
public class TestServerBuildInfo implements ServerBuildInfo {
@Override
public @NotNull Key brandId() {
throw new UnsupportedOperationException();
}
@Override
public boolean isBrandCompatible(final @NotNull Key brandId) {
throw new UnsupportedOperationException();
}
@Override
public @NotNull String brandName() {
throw new UnsupportedOperationException();
}
@Override
public @NotNull String minecraftVersionId() {
throw new UnsupportedOperationException();
}
@Override
public @NotNull String minecraftVersionName() {
throw new UnsupportedOperationException();
}
@Override
public @NotNull OptionalInt buildNumber() {
throw new UnsupportedOperationException();
}
@Override
public @NotNull Instant buildTime() {
throw new UnsupportedOperationException();
}
@Override
public @NotNull Optional<String> gitBranch() {
throw new UnsupportedOperationException();
}
@Override
public @NotNull Optional<String> gitCommit() {
throw new UnsupportedOperationException();
}
@Override
public @NotNull String asString(final @NotNull StringRepresentation representation) {
return "";
}
}

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@ -0,0 +1 @@
io.papermc.paper.TestServerBuildInfo