Add caching to the updater

src/main/java/dev/plex/admin/AdminList.java

@@ -10,7 +10,6 @@ import dev.plex.PlexBase;
 import dev.plex.player.PlexPlayer;
 import dev.plex.rank.enums.Rank;
 import dev.plex.storage.StorageType;
-
 import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;

src/main/java/dev/plex/cache/MongoPlayerData.java

@@ -7,7 +7,6 @@ import dev.morphia.query.experimental.filters.Filters;
 import dev.morphia.query.experimental.updates.UpdateOperators;
 import dev.plex.Plex;
 import dev.plex.player.PlexPlayer;
-
 import java.util.Collections;
 import java.util.UUID;
 

src/main/java/dev/plex/cache/SQLPlayerData.java

@@ -10,7 +10,6 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.List;
 import java.util.UUID;
-import java.util.concurrent.CompletableFuture;
 
 /**
  * SQL fetching utilities for players

src/main/java/dev/plex/command/impl/PlexCMD.java

@@ -35,7 +35,7 @@ public class PlexCMD extends PlexCommand
             send(sender, mmString("<light_purple>Authors: <gold>Telesphoreo, Taahh"));
             send(sender, mmString("<light_purple>Built by: <gold>" + Plex.build.author + " <light_purple>on <gold>" + Plex.build.date));
             send(sender, mmString("<light_purple>Run <gold>/plex modules <light_purple>to see a list of modules."));
-            plugin.getUpdateChecker().getUpdateStatusMessage(sender);
+            plugin.getUpdateChecker().getUpdateStatusMessage(sender, true);
             return null;
         }
         if (args[0].equalsIgnoreCase("reload"))

src/main/java/dev/plex/module/ModuleManager.java

@@ -3,7 +3,6 @@ package dev.plex.module;
 import com.google.common.collect.Lists;
 import dev.plex.Plex;
 import dev.plex.module.exception.ModuleLoadException;
-//import dev.plex.module.loader.CustomClassLoader;
 import dev.plex.module.loader.LibraryLoader;
 import dev.plex.util.PlexLog;
 import java.io.File;

src/main/java/dev/plex/module/PlexModule.java

@@ -7,8 +7,6 @@ import dev.plex.listener.PlexListener;
 import java.io.File;
 import java.util.List;
 import java.util.Locale;
-
-//import dev.plex.module.loader.CustomClassLoader;
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.Setter;

src/main/java/dev/plex/module/PlexModuleFile.java

@@ -1,9 +1,8 @@
 package dev.plex.module;
 
 import com.google.common.collect.ImmutableList;
-import lombok.Data;
-
 import java.util.List;
+import lombok.Data;
 
 @Data
 public class PlexModuleFile

src/main/java/dev/plex/module/loader/LibraryLoader.java

@@ -4,6 +4,20 @@ import com.google.common.collect.Lists;
 import dev.plex.Plex;
 import dev.plex.module.PlexModule;
 import dev.plex.module.PlexModuleFile;
+import java.io.File;
+import java.io.IOException;
+import java.net.JarURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 import org.apache.maven.repository.internal.MavenRepositorySystemUtils;
 import org.eclipse.aether.DefaultRepositorySystemSession;
 import org.eclipse.aether.RepositorySystem;
@@ -29,18 +43,6 @@ import org.eclipse.aether.transport.http.HttpTransporterFactory;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-import java.io.File;
-import java.io.IOException;
-import java.net.*;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Enumeration;
-import java.util.List;
-import java.util.jar.JarEntry;
-import java.util.jar.JarFile;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
 //TODO: doesn't work
 
 public class LibraryLoader {

src/main/java/dev/plex/services/impl/UpdateCheckerService.java

@@ -17,7 +17,7 @@ public class UpdateCheckerService extends AbstractService
     {
         if (!newVersion)
         {
-            if (plugin.getUpdateChecker().getUpdateStatusMessage(Bukkit.getConsoleSender()))
+            if (plugin.getUpdateChecker().getUpdateStatusMessage(Bukkit.getConsoleSender(), false))
             {
                 newVersion = true;
             }

src/main/java/dev/plex/util/UpdateChecker.java

@@ -18,7 +18,16 @@ import org.bukkit.command.CommandSender;
 
 public class UpdateChecker extends PlexBase
 {
-    private static final String DOWNLOAD_PAGE = "https://ci.plex.us.org/job/Plex/";
+    /*
+     * -4 = Never checked for updates
+     * -3 = Likely rate limited
+     * -2 = Unknown commit
+     * -1 = Error occurred
+     * 0 = Up to date
+     * > 0 = Number of commits behind
+     */
+    private final String DOWNLOAD_PAGE = "https://ci.plex.us.org/job/Plex/";
+    private int distance = -4;
 
     // Adapted from Paper
     private int fetchDistanceFromGitHub(@Nonnull String repo, @Nonnull String branch, @Nonnull String hash)
@@ -31,6 +40,10 @@ public class UpdateChecker extends PlexBase
             {
                 return -2; // Unknown commit
             }
+            if (connection.getResponseCode() == HttpURLConnection.HTTP_FORBIDDEN)
+            {
+                return -3; // Rate limited likely
+            }
             try (BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(), Charsets.UTF_8)))
             {
                 JsonObject obj = new Gson().fromJson(reader, JsonObject.class);
@@ -55,10 +68,27 @@ public class UpdateChecker extends PlexBase
         }
     }
 
-    public boolean getUpdateStatusMessage(CommandSender sender)
+    public boolean getUpdateStatusMessage(CommandSender sender, boolean cached)
+    {
+        // If it's -4, it hasn't checked for updates yet
+        if (distance == -4)
         {
-        int distance;
             distance = fetchDistanceFromGitHub("plexusorg/Plex", "master", Plex.build.head);
+            PlexLog.debug("Never checked for updates, checking now...");
+        }
+        else
+        {
+            // If the request isn't asked to be cached, fetch it
+            if (!cached)
+            {
+                distance = fetchDistanceFromGitHub("plexusorg/Plex", "master", Plex.build.head);
+                PlexLog.debug("We have checked for updates before, but this request was not asked to be cached.");
+            }
+            else
+            {
+                PlexLog.debug("We have checked for updates before, using cache.");
+            }
+        }
 
         switch (distance)
         {