version tag safeguard

.pre-commit-config.yaml

@@ -1,4 +1,13 @@
 repos:
+  - repo: local
+    hooks:
+      - id: check-tag-version
+        name: Check if git tag matches __version__
+        entry: python .pre-commit-hooks/check-tag-version.py
+        language: python
+        stages: [push]
+        always_run: true
+
   - repo: local
     hooks:
     - id: update-last-modified-header

.pre-commit-hooks/check_version_tag.py

@@ -0,0 +1,48 @@
+import subprocess
+import sys
+import re
+import os
+
+
+def get_latest_version_tag():
+    tags = (
+        subprocess.check_output(["git", "tag", "--sort=-creatordate"], text=True)
+        .strip()
+        .split("\n")
+    )
+    version_tags = [tag for tag in tags if re.match(r"^v\d+\.\d+\.\d+$", tag)]
+    if version_tags:
+        return version_tags[0]
+    return None
+
+
+def get_version():
+    version_file = "endf_parserpy/__init__.py"
+    if not os.path.exists(version_file):
+        raise RuntimeError(f"Could not find {version_file}.")
+    with open(version_file, "r") as file:
+        for line in file:
+            if line.strip().startswith("__version"):
+                version = line.split("=")[1].strip().strip('"')
+                return version
+    raise RuntimeError("Could not find version string.")
+
+
+def main():
+    tag = get_latest_version_tag()
+    if not tag:
+        print("No version tag found. Skipping version check.")
+        sys.exit(0)
+
+    version = get_version_from_init()
+    tag_version = tag[1:]
+    if version != tag_version:
+        print(f"Tag '{tag}' does not match version '{version}' in __init__.py")
+        sys.exit(1)
+
+    print(f"Tag '{tag}' matches version '{version}' in __init__.py")
+    sys.exit(0)
+
+
+if __name__ == "__main__":
+    main()