1 files changed, 22 insertions, 0 deletions
diff --git a/tools/cru-py/cru/system.py b/tools/cru-py/cru/system.py
new file mode 100644
index 0000000..2e05cd1
--- /dev/null
+++ b/tools/cru-py/cru/system.py
@@ -0,0 +1,22 @@
+import re
+import os.path
+
+
+def check_debian_derivative_version(name: str) -> None | str:
+    if not os.path.isfile("/etc/os-release"):
+        return None
+    with open("/etc/os-release", "r") as f:
+        content = f.read()
+        if not f"ID={name}" in content:
+            return None
+        m = re.search(r'VERSION_ID="(.+)"', content)
+        if m is None: return None
+        return m.group(1)
+
+
+def check_ubuntu_version() -> None | str:
+    return check_debian_derivative_version("ubuntu")
+
+
+def check_debian_version() -> None | str:
+    return check_debian_derivative_version("debian")