add gen_requirements_txt.py

.github/tools/gen_requirements_txt.py

@@ -0,0 +1,26 @@
+# This script requires python 3.12 to run.
+from __future__ import annotations
+
+import sys
+import tomllib
+from typing import Any
+
+
+def gen_requirements_txt(pyproject_cfg: dict[str, Any]) -> str:
+    try:
+        _res: list[str] = pyproject_cfg["project"]["dependencies"]
+        return "\n".join(_res)
+    except KeyError:
+        return ""
+
+
+if __name__ == "__main__":
+    script_name, *args = sys.argv
+    if len(args) < 2:
+        print(f"Usage: {script_name} <pyproject.toml> <requirements.txt>")
+        sys.exit(1)
+
+    pyproject_toml, requirements_txt, *_ = args
+    with open(pyproject_toml, "rb") as src, open(requirements_txt, "w") as dst:
+        _parsed = tomllib.load(src)
+        dst.write(gen_requirements_txt(_parsed))

.github/workflows/gen_requirements_txt.yaml

@@ -28,7 +28,7 @@ jobs:
 
       - name: generate requirements.txt
         run: |
-          .github/tools/gen_requirements_txt.py \
+          python .github/tools/gen_requirements_txt.py \
             pyproject.toml requirements.txt
 
       - name: commit change if needed