From b52f8a9b99d0f1936ef9cd121603f17ce93acd20 Mon Sep 17 00:00:00 2001
From: lou <lou@localhost>
Date: Tue, 11 Aug 2026 14:39:17 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E5=85=A5=E5=8F=A3=E6=A0=A1?=
 =?UTF-8?q?=E9=AA=8C:=20=E8=B7=AF=E5=BE=84=E5=BF=85=E9=A1=BB=E6=98=AF?=
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 =?UTF-8?q?=E6=8F=90=E7=A4=BA=E7=94=A8=20sz-backup=20=E5=A4=87=E4=BB=BD)?=
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- metadata.py main: exists 后补 is_file 检查, 目录直接中文报错退出
- _build_vol_init 库函数内防御: 非文件抛 ValueError
- 修复: TUI 上传目录 (/home/lou/图片/) 时 IsADirectoryError traceback
---
 metadata.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/metadata.py b/metadata.py
index 9913390..9c371b2 100644
--- a/metadata.py
+++ b/metadata.py
@@ -148,6 +148,8 @@ def _build_vol_init(src_path: Path, args: argparse.Namespace) -> int:
     workdir = Path(tempfile.gettempdir())
     init_path = src_path.with_name(src_path.name + ".init.json")
     manifest_path = src_path.with_name(src_path.name + "_manifest.json")
+    if not src_path.is_file():
+        raise ValueError(f"源路径不是文件 (目录请用备份流程): {src_path}")
     src_st = src_path.stat().st_size
     print(f"=== 卷压缩模式: {src_path.name} ({src_st / 1048576:.1f} MB), 每卷 {args.vol_compress} MB ===")
     chunks: list[dict[str, Any]] = []
@@ -247,6 +249,9 @@ def main() -> int:
     if not src_path.exists():
         print(f"[错误] 文件不存在: {src_path}")
         return 1
+    if not src_path.is_file():
+        print(f"[错误] 不是文件 (目录上传请用 sz-backup 一键备份): {src_path}")
+        return 1
 
     # 卷压缩模式: 流式切卷 -> 逐卷 7z 压缩 -> 逐卷加密 (每卷内存 16MB 级, 规避大文件 OOM)
     if args.vol_compress > 0: