Add reqs_checker.py for synchronizing dependencies between requirements.txt and setup.py

reqs_checker.py

+import re
+
+
+def read_requirements_txt(file_path: str) -> list[str]:
+    with open(file_path, "r") as file:
+        lines = file.readlines()
+
+    def _dev_req_index() -> int:
+        return next((i for i, line in enumerate(lines) if "# dev requirements" in line), len(lines))
+
+    dev_req_index = _dev_req_index()
+    assert dev_req_index != len(lines), f"Missing # dev requirements section in {file_path}"
+
+    return [line.strip() for line in lines[: _dev_req_index()] if line.strip() and not line.startswith("#")]
+
+
+def read_requirements_setup(file_path: str) -> list[str]:
+    with open(file_path, "r") as file:
+        content = file.read()
+
+    # Find and extract the install_requires section
+    matches = re.findall(r"install_requires=\[(.*?)\]", content, re.DOTALL)
+    if matches:
+        return re.findall(r'"([^"]+)"', matches[0])
+
+    return []
+
+
+def compare_requirements(reqs: list[str], setup_reqs: list[str]) -> tuple[set[str], set[str]]:
+    missing_in_setup = set(reqs) - set(setup_reqs)
+    missing_in_requirements = set(setup_reqs) - set(reqs)
+
+    return missing_in_setup, missing_in_requirements
+
+
+def main() -> None:
+    reqs = read_requirements_txt("requirements.txt")
+    setup_reqs = read_requirements_setup("setup.py")
+
+    missing_in_setup, missing_in_requirements = compare_requirements(reqs, setup_reqs)
+
+    if not missing_in_setup and not missing_in_requirements:
+        print("Requirements are synchronized.")  # noqa: T201
+    else:
+        if missing_in_setup:
+            print("Missing or different in setup.py:", ", ".join(missing_in_setup))  # noqa: T201
+        if missing_in_requirements:
+            print("Missing or different in requirements.txt:", ", ".join(missing_in_requirements))  # noqa: T201
+
+        exit(1)
+
+
+if __name__ == "__main__":
+    main()