sz-backup: tar 后 7z 压缩 (与上传一致, 文本类 mx=9 照片 mx=1); 恢复端 7z x 解压; 修 manifest 保存 bug

debian/7z-encrypt-client-bin/DEBIAN/control

@@ -3,7 +3,7 @@ Source: 7z-encrypt-client
 Version: 1.0.0
 Architecture: amd64
 Maintainer: edgevoid <edgevoid@users.noreply.gitee.com>
-Installed-Size: 51850
+Installed-Size: 51858
 Depends: p7zip-full
 Conflicts: 7z-encrypt-client
 Replaces: 7z-encrypt-client

debian/7z-encrypt-client-bin/DEBIAN/md5sums

@@ -1,4 +1,4 @@
-094c9453f9346a962da07a6e123cc5fc  usr/bin/sz-backup
+b7ec4ffff510e79070edf4685f0ba9a1  usr/bin/sz-backup
 61901c8e9af062eef5c386c715f5f3bb  usr/bin/sz-config
 02b57eea9c5ca54c63fd82da1d6d960b  usr/bin/sz-transfer
 8f9902ebfd228e08f7691abe6d471d86  usr/bin/sz-tui

debian/7z-encrypt-client/DEBIAN/control

@@ -2,7 +2,7 @@ Package: 7z-encrypt-client
 Version: 1.0.0
 Architecture: all
 Maintainer: edgevoid <edgevoid@users.noreply.gitee.com>
-Installed-Size: 116
+Installed-Size: 117
 Depends: python3 (>= 3.10), python3-venv, p7zip-full
 Section: utils
 Priority: optional

debian/7z-encrypt-client/DEBIAN/md5sums

@@ -2,7 +2,7 @@
 440c53f84f5722b5146959c8fc6d7a23  usr/bin/sz-config
 ec8cf0df841e479689ccb681f6168ccc  usr/bin/sz-transfer
 0ba5b8147990daa7fd07344952c42847  usr/bin/sz-tui
-3ed341805839f8dcee1fc8f719c5cc2f  usr/share/7z-encrypt/backup.py
+78aed672b874d47ecb3e9dc12b6951a8  usr/share/7z-encrypt/backup.py
 dcb31e74e0a6ee8073337fc4fb2acf99  usr/share/7z-encrypt/config.py
 8a064c0b3c21d50812a3fd69a320d862  usr/share/7z-encrypt/crypto.py
 21062e04f8c7f4471881a39c489dfa73  usr/share/7z-encrypt/metadata.py

debian/7z-encrypt-client/usr/share/7z-encrypt/backup.py

@@ -28,10 +28,17 @@ from tqdm import tqdm
 STATE_DIR = Path.home() / ".local/share/7z-encrypt" / "backup"
 BATCH_MB = 500  # 每批 tar 上限
 BATCH_FILES = 500  # 每批文件数上限
-# 高压缩率类型 (聊天记录/文档) 用 gzip, 照片/视频直接存
+# 高压缩率类型 (聊天记录/文档) 用 -mx=9, 照片/视频批次 -mx=1 快速
 COMPRESS_SUFFIX = {".db", ".sqlite", ".sqlite3", ".sql", ".txt", ".json", ".xml", ".csv", ".log", ".md", ".html"}
 
 
+def _7z(args: list[str]) -> None:
+    """调系统 7z (p7zip-full), 失败抛异常"""
+    r = subprocess.run(["7z"] + args, capture_output=True, text=True, timeout=7200)
+    if r.returncode != 0:
+        raise RuntimeError(f"7z 失败: {r.stderr.strip()[-200:] or r.stdout.strip()[-200:]}")
+
+
 def _cfg() -> dict[str, Any]:
     """读配置文件 backup 段 (XDG, 同客户端)"""
     env = os.environ.get("SZ_CONFIG")
@@ -201,13 +208,19 @@ def backup(name: str, chunk_mb: int = 10) -> int:
     for i, batch in enumerate(batches, 1):
         tar_path = STATE_DIR / f"{name}_{ts}_{i:02d}.tar"
         tar_path.parent.mkdir(parents=True, exist_ok=True)
-        mode = "w:gz" if any(_compress(f) for f in batch) else "w"
-        with tarfile.open(tar_path, mode) as tf:
+        with tarfile.open(tar_path, "w") as tf:
             for f in batch:
                 try:
                     tf.add(f, arcname=str(f))
                 except (OSError, tarfile.TarError) as e:
                     print(f"  [跳过] {f}: {e}")
+        # 7z 压缩 (与上传文件一致): 含文本类 -mx=9, 照片视频 -mx=1
+        mx = 9 if any(_compress(f) for f in batch) else 1
+        seven = tar_path.with_suffix(".tar.7z")
+        print(f"[备份] 7z 压缩 (mx={mx}) ...")
+        _7z(["a", "-y", "-bd", f"-mx={mx}", str(seven), str(tar_path)])
+        tar_path.unlink(missing_ok=True)
+        tar_path = seven
         size_mb = tar_path.stat().st_size / 1048576
         print(f"[备份] 批次 {i}/{len(batches)}: {tar_path.name} ({size_mb:.1f} MB), 上传中 ...")
         try:
@@ -215,7 +228,7 @@ def backup(name: str, chunk_mb: int = 10) -> int:
         except RuntimeError as e:
             print(f"[错误] {e}")
             return 1
-        files_in_batch = [str(f) for f in batch if tarfile.open(tar_path).getnames()]
+        files_in_batch = [str(f) for f in batch]
         for f in batch:
             try:
                 st = f.stat()
@@ -267,7 +280,14 @@ def restore(name: str, out_root: Path | None = None) -> int:
         except Exception as e:
             print(f"[错误] 下载 {tar_name} 失败: {e}")
             return 1
-        # 解包 (路径校验: 只解回 manifest 记录的文件)
+        # 7z 解压 -> tar -> 解包 (路径校验: 只解回 manifest 记录的文件)
+        if tar_src.suffix == ".7z":
+            _7z(["x", "-y", "-bd", f"-o{dl}", str(tar_src)])
+            tar_src.unlink(missing_ok=True)
+            tar_src = dl / tar_name
+        if not tar_src.exists():
+            print(f"[错误] 未找到 tar: {dl}")
+            return 1
         with tarfile.open(tar_src) as tf:
             for member in tf.getmembers():
                 if member.name not in info.get("files", []):