initial

.venv/lib/python3.12/site-packages/ezdxf/dwginfo.py

@@ -0,0 +1,27 @@
+#  Copyright (c) 2022, Manfred Moitzi
+#  License: MIT License
+from typing import NamedTuple, Union
+import os
+from ezdxf.lldxf import const
+
+
+class DWGInfo(NamedTuple):
+    version: str = "unknown"
+    release: str = "unknown"
+
+
+def dwg_info(data: bytes) -> DWGInfo:
+    """Returns the version and release name of a DWG file."""
+    if len(data) < 6:
+        return DWGInfo("invalid", "invalid")
+    version = data[:6].decode(errors="ignore")
+    if version[:4] != "AC10":
+        return DWGInfo("invalid", "invalid")
+    release = const.acad_release.get(version, "unknown")
+    return DWGInfo(version, release)
+
+
+def dwg_file_info(file: Union[str, os.PathLike]) -> DWGInfo:
+    """Returns the version and release name of a DWG file."""
+    with open(file, "rb") as fp:
+        return dwg_info(fp.read(6))