Create backup.py

backup.py

@@ -0,0 +1,125 @@
+#!/usr/bin/env python3
+from huggingface_hub import HfApi
+import sys
+import os
+import shutil
+import time
+import glob
+from datetime import datetime
+import tempfile
+
+def manage_backups(api, repo_id, max_files=10):
+    """管理备份文件数量，删除旧的备份"""
+    try:
+        files = api.list_repo_files(repo_id=repo_id, repo_type="dataset")
+        backup_files = [f for f in files if f.startswith('navidrome_backup_') and f.endswith('.tar.gz')]
+        backup_files.sort()
+        
+        if len(backup_files) >= max_files:
+            files_to_delete = backup_files[:(len(backup_files) - max_files + 1)]
+            for file_to_delete in files_to_delete:
+                try:
+                    api.delete_file(path_in_repo=file_to_delete, repo_id=repo_id, repo_type="dataset")
+                    print(f'已删除旧备份: {file_to_delete}')
+                except Exception as e:
+                    print(f'删除 {file_to_delete} 时出错: {str(e)}')
+    except Exception as e:
+        print(f'管理备份时出错: {str(e)}')
+
+def upload_backup(file_path, file_name, token, repo_id):
+    """上传备份文件到HuggingFace"""
+    api = HfApi(token=token)
+    try:
+        api.upload_file(
+            path_or_fileobj=file_path,
+            path_in_repo=file_name,
+            repo_id=repo_id,
+            repo_type="dataset"
+        )
+        print(f"成功上传 {file_name}")
+        
+        manage_backups(api, repo_id)
+    except Exception as e:
+        print(f"文件上传出错: {str(e)}")
+
+def download_latest_backup(token, repo_id, data_dir):
+    """下载最新的备份文件并恢复"""
+    try:
+        # 确保目标目录存在并有正确权限
+        os.makedirs(data_dir, exist_ok=True)
+        os.chmod(data_dir, 0o755)
+        
+        api = HfApi(token=token)
+        files = api.list_repo_files(repo_id=repo_id, repo_type="dataset")
+        backup_files = [f for f in files if f.startswith('navidrome_backup_') and f.endswith('.tar.gz')]
+        
+        if not backup_files:
+            print("未找到备份文件")
+            return False
+            
+        latest_backup = sorted(backup_files)[-1]
+        
+        # 使用临时目录下载文件
+        with tempfile.TemporaryDirectory() as temp_dir:
+            filepath = api.hf_hub_download(
+                repo_id=repo_id,
+                filename=latest_backup,
+                repo_type="dataset",
+                local_dir=temp_dir
+            )
+            
+            if filepath and os.path.exists(filepath):
+                # 解压备份文件
+                import tarfile
+                with tarfile.open(filepath, "r:gz") as tar:
+                    tar.extractall(path=data_dir)
+                    
+                print(f"成功从 {latest_backup} 恢复备份到 {data_dir}")
+                return True
+        return False
+                
+    except Exception as e:
+        print(f"下载备份时出错: {str(e)}")
+        return False
+
+def create_backup(data_dir, exclude_dirs=None):
+    """创建备份文件，排除指定目录"""
+    if exclude_dirs is None:
+        exclude_dirs = []
+    
+    timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
+    backup_filename = f"navidrome_backup_{timestamp}.tar.gz"
+    backup_path = f"/tmp/{backup_filename}"
+    
+    try:
+        import tarfile
+        with tarfile.open(backup_path, "w:gz") as tar:
+            for item in os.listdir(data_dir):
+                item_path = os.path.join(data_dir, item)
+                # 排除指定目录
+                if os.path.isdir(item_path) and item in exclude_dirs:
+                    continue
+                tar.add(item_path, arcname=item)
+        
+        print(f"备份文件创建成功: {backup_path}")
+        return backup_path, backup_filename
+    except Exception as e:
+        print(f"创建备份时出错: {str(e)}")
+        return None, None
+
+if __name__ == "__main__":
+    action = sys.argv[1]
+    token = sys.argv[2]
+    repo_id = sys.argv[3]
+    data_dir = sys.argv[4]
+    
+    if action == "upload":
+        # 排除音乐目录和缓存，只备份数据和配置
+        exclude_dirs = ["cache", "music"]
+        backup_path, backup_filename = create_backup(data_dir, exclude_dirs)
+        if backup_path:
+            upload_backup(backup_path, backup_filename, token, repo_id)
+            # 清理临时文件
+            os.remove(backup_path)
+    elif action == "download":
+        download_latest_backup(token, repo_id, data_dir)