get-unused-values

#!/usr/bin/env python3

import argparse
import glob
import yaml
from pathlib import Path

def _main():
    parser = argparse.ArgumentParser(description="Get the values files that not used in any Helmfiles.")
    parser.add_argument("folder", default=["values"], nargs='*', help="The folder to search for the values files.")
    args = parser.parse_args()

    used_values_path = set()
    for filename in [*glob.glob("**/helmfile.yaml", recursive=True), *glob.glob("**/helmfile-*.yaml", recursive=True)]:
        helmfile = Path(filename)
        base_dir = helmfile.parent
        with helmfile.open(encoding="utf-8") as f:
            values = yaml.safe_load(f)
            for release in values.get("releases", []):
                for value in release.get("values", []):
                        used_values_path.add((base_dir / value).resolve())

    for folder in args.folder:
        for filename in [
        *glob.glob(f"{folder}/**/values.yaml", recursive=True),
        *glob.glob(f"{folder}/**/values-*.yaml", recursive=True),
        *glob.glob(f"{folder}/**/secrets.yaml", recursive=True),
        *glob.glob(f"{folder}/**/secrets-*.yaml", recursive=True)
        ]:
            if Path(filename).absolute() not in used_values_path:
                print(filename)

if __name__ == "__main__":
    _main()