typo and some code cleanup

src/main/java/net/szum123321/textile_backup/ConfigHandler.java

@@ -45,11 +45,11 @@ public class ConfigHandler {
     @Comment("\nShould every world has its won backup folder?\n")
     public boolean perWorldBackup = false;
 
-    @Comment("\nMaximum number of backups to keep. if 0 then no backup will be deleted based on its amount\n")
+    @Comment("\nMaximum number of backups to keep. If 0 then no backup will be deleted based on its amount\n")
     public int backupsToKeep = 10;
 
     @Comment("\nMaximum age of backups to keep in seconds.\n if 0 then backups will not be deleted based on its age \n")
-    public int maxAge = 0;
+    public long maxAge = 0;
 
     @Comment("\nMaximum size of backup folder in kilo bytes. \n")
     public int maxSize = 0;
@@ -70,7 +70,7 @@ public class ConfigHandler {
     public Set<String> playerWhitelist = new HashSet<>();
 
     @Comment("\nPlayers banned from running backup commands besides their sufficient permission level\n")
-    public Set<String> playerBlocklist = new HashSet<>();
+    public Set<String> playerBlacklist = new HashSet<>();
 
     @Comment("\nFormat of date&time used to name backup files.\n")
     public String dateTimeFormat = "dd.MM.yyyy_HH-mm-ss";

src/main/java/net/szum123321/textile_backup/TextileBackup.java

@@ -54,7 +54,7 @@ public class TextileBackup implements ModInitializer {
                                     try {
                                         return ((config.playerWhitelist.contains(ctx.getEntityOrThrow().getEntityName()) ||
                                                 ctx.hasPermissionLevel(config.permissionLevel)) &&
-                                                !config.playerBlocklist.contains(ctx.getEntityOrThrow().getEntityName())) ||
+                                                !config.playerBlacklist.contains(ctx.getEntityOrThrow().getEntityName())) ||
                                                 (ctx.getMinecraftServer().isSinglePlayer() &&
                                                 config.alwaysSingleplayerAllowed);
                                     }catch (Exception e){ //Command was called from server console.

src/main/java/net/szum123321/textile_backup/commands/BlacklistCommand.java

@@ -40,7 +40,7 @@ public class BlacklistCommand {
 
 		builder.append("Currently on the blacklist are: ");
 
-		for(String name : TextileBackup.config.playerBlocklist){
+		for(String name : TextileBackup.config.playerBlacklist){
 			builder.append(name);
 			builder.append(", ");
 		}
@@ -53,10 +53,10 @@ public class BlacklistCommand {
 	private static int executeAdd(CommandContext<ServerCommandSource> ctx) throws CommandSyntaxException {
 		PlayerEntity player = EntityArgumentType.getPlayer(ctx, "player");
 
-		if(TextileBackup.config.playerBlocklist.contains(player.getEntityName())) {
+		if(TextileBackup.config.playerBlacklist.contains(player.getEntityName())) {
 			ctx.getSource().sendFeedback(new TranslatableText("Player: %s is already blacklisted.", player.getEntityName()), false);
 		}else{
-			TextileBackup.config.playerBlocklist.add(player.getEntityName());
+			TextileBackup.config.playerBlacklist.add(player.getEntityName());
 			ConfigManager.saveConfig(TextileBackup.config);
 
 			StringBuilder builder = new StringBuilder();
@@ -81,10 +81,10 @@ public class BlacklistCommand {
 	private static int executeRemove(CommandContext<ServerCommandSource> ctx) throws CommandSyntaxException {
 		PlayerEntity player = EntityArgumentType.getPlayer(ctx, "player");
 
-		if(!TextileBackup.config.playerBlocklist.contains(player.getEntityName())) {
+		if(!TextileBackup.config.playerBlacklist.contains(player.getEntityName())) {
 			ctx.getSource().sendFeedback(new TranslatableText("Player: %s newer was blacklisted.", player.getEntityName()), false);
 		}else{
-			TextileBackup.config.playerBlocklist.remove(player.getEntityName());
+			TextileBackup.config.playerBlacklist.remove(player.getEntityName());
 			ConfigManager.saveConfig(TextileBackup.config);
 
 			StringBuilder builder = new StringBuilder();

src/main/java/net/szum123321/textile_backup/commands/WhitelistCommand.java

@@ -65,8 +65,8 @@ public class WhitelistCommand {
 			builder.append(player.getEntityName());
 			builder.append(" added to the whitelist");
 
-			if(TextileBackup.config.playerBlocklist.contains(player.getEntityName())){
+			if(TextileBackup.config.playerBlacklist.contains(player.getEntityName())){
-				TextileBackup.config.playerBlocklist.remove(player.getEntityName());
+				TextileBackup.config.playerBlacklist.remove(player.getEntityName());
 				builder.append(" and removed form the blacklist");
 			}
 

src/main/java/net/szum123321/textile_backup/core/MakeBackupThread.java

@@ -59,7 +59,7 @@ public class MakeBackupThread implements Runnable {
             return;
         }
 
-        Compressor.createArchive(world, outFile, ctx);
+        ZipCompressor.createArchive(world, outFile, ctx);
 
         BackupHelper.executeFileLimit(ctx, server.getWorld(DimensionType.OVERWORLD).getLevelProperties().getLevelName());
 

src/main/java/net/szum123321/textile_backup/core/ZipCompressor.java

@@ -0,0 +1,68 @@
+/*
+    A simple backup mod for Fabric
+    Copyright (C) 2020  Szum123321
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package net.szum123321.textile_backup.core;
+
+import net.minecraft.server.command.ServerCommandSource;
+import net.szum123321.textile_backup.TextileBackup;
+import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
+import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
+import org.apache.commons.compress.compressors.bzip2.BZip2CompressorOutputStream;
+import org.apache.commons.compress.utils.IOUtils;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.time.LocalDateTime;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+
+public class ZipCompressor {
+    public static void createArchive(File in, File out, ServerCommandSource ctx){
+        Utilities.log("Starting compression...", ctx);
+
+        try (ZipOutputStream arc = new ZipOutputStream(new FileOutputStream(out))){
+            arc.setLevel(TextileBackup.config.compression);
+            arc.setComment("Created on: " + Utilities.getDateTimeFormatter().format(LocalDateTime.now()));
+
+            File input = in.getCanonicalFile();
+            int rootPathLength = input.toString().length() + 1;
+
+            Files.walk(input.toPath()).filter(path -> !path.equals(input.toPath()) && path.toFile().isFile() && !TextileBackup.config.fileBlacklist.contains(path.toString().substring(rootPathLength))).forEach(path -> {
+                try{
+                    File file = path.toAbsolutePath().toFile();
+
+                    ZipEntry entry = new ZipEntry(file.getAbsolutePath().substring(rootPathLength));
+                    arc.putNextEntry(entry);
+                    entry.setSize(file.length());
+                    IOUtils.copy(new FileInputStream(file), arc);
+                    arc.closeEntry();
+                }catch (IOException e){
+                    TextileBackup.logger.error(e.getMessage());
+                }
+            });
+
+        } catch (IOException e) {
+            TextileBackup.logger.error(e.getMessage());
+        }
+
+        Utilities.log("Compression finished", ctx);
+    }
+}