初始化奇妙小屏幕控制器项目

各种归档/20260907_OTA1.1.0软件安装节点验证/1.0.3旧更新器/versioning.py

@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+from pathlib import Path
+import re
+
+_VERSION_PATTERN = re.compile(r"^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)$")
+
+
+@dataclass(frozen=True, order=True)
+class SoftwareVersion:
+    major: int
+    minor: int
+    patch: int
+
+    @classmethod
+    def parse(cls, value: str) -> "SoftwareVersion":
+        if not isinstance(value, str):
+            raise ValueError("software version must be a string")
+        match = _VERSION_PATTERN.fullmatch(value.strip())
+        if match is None:
+            raise ValueError("software version must use strict MAJOR.MINOR.PATCH digits")
+        return cls(*(int(part) for part in match.groups()))
+
+    def __str__(self) -> str:
+        return f"{self.major}.{self.minor}.{self.patch}"
+
+
+def read_software_version(code_root: Path) -> SoftwareVersion:
+    path = Path(code_root) / "VERSION"
+    try:
+        return SoftwareVersion.parse(path.read_text(encoding="utf-8"))
+    except OSError as exc:
+        raise RuntimeError(f"software VERSION file is unreadable: {path}") from exc