From 720e8ec8eeb69d24afbb6b14068563cde2d470f0 Mon Sep 17 00:00:00 2001
From: Keuin <keuinx@gmail.com>
Date: Thu, 23 Apr 2020 14:51:29 +0800
Subject: Version 1.1.0-dev: - Optimized backup lag (using async I/O). - Added
 twice confirmation /kb confirm and cancellation /kb cancel, to avoid mistake.
 - Added countdown before restoring. - Adjusted some text. - Code
 optimization.

---
 .../kbackupfabric/util/BackupFilesystemUtil.java   | 53 ++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 src/main/java/com/keuin/kbackupfabric/util/BackupFilesystemUtil.java

(limited to 'src/main/java/com/keuin/kbackupfabric/util/BackupFilesystemUtil.java')

diff --git a/src/main/java/com/keuin/kbackupfabric/util/BackupFilesystemUtil.java b/src/main/java/com/keuin/kbackupfabric/util/BackupFilesystemUtil.java
new file mode 100644
index 0000000..5b8ba5a
--- /dev/null
+++ b/src/main/java/com/keuin/kbackupfabric/util/BackupFilesystemUtil.java
@@ -0,0 +1,53 @@
+package com.keuin.kbackupfabric.util;
+
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.world.ThreadedAnvilChunkStorage;
+import net.minecraft.world.World;
+
+import java.io.File;
+
+/**
+ * Functions deal with file name, directory name about Minecraft saves.
+ */
+public final class BackupFilesystemUtil {
+
+    private static final String backupSaveDirectoryName = "backups";
+    private static final String backupFileNamePrefix = "kbackup-";
+
+    public static String getBackupFileName(String backupName) {
+        return backupFileNamePrefix + backupName + ".zip";
+    }
+
+    public static String getBackupName(String backupFileName) {
+        try {
+            if (backupFileName.matches(backupFileNamePrefix + ".+\\.zip"))
+                return backupFileName.substring(backupFileNamePrefix.length(), backupFileName.length() - 4);
+        } catch (IndexOutOfBoundsException ignored) {
+        }
+        return backupFileName;
+    }
+
+    public static boolean isBackupNameValid(String backupName, MinecraftServer server) {
+        File backupFile = new File(getBackupSaveDirectory(server), getBackupFileName(backupName));
+        return backupFile.isFile();
+    }
+
+    public static File getBackupSaveDirectory(MinecraftServer server) {
+        return new File(server.getRunDirectory(), backupSaveDirectoryName);
+    }
+
+    public static String getLevelPath(MinecraftServer server) {
+        return (new File(server.getRunDirectory(), server.getLevelName())).getAbsolutePath();
+    }
+
+    public static String getWorldDirectoryName(World world) throws NoSuchFieldException, IllegalAccessException {
+        File saveDir;
+        ThreadedAnvilChunkStorage threadedAnvilChunkStorage = (ThreadedAnvilChunkStorage) ReflectionUtils.getPrivateField(world.getChunkManager(), "threadedAnvilChunkStorage");
+        saveDir = (File) ReflectionUtils.getPrivateField(threadedAnvilChunkStorage, "saveDir");
+        return saveDir.getName();
+    }
+
+    public static String getBackupFileNamePrefix() {
+        return backupFileNamePrefix;
+    }
+}
-- 
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