#!/usr/bin/env python


def print_errnos(txtlists: list[str]) -> None:
    print(
        f"/* 9p/linux-errno.h - Generated by `./9p/linux-errno.h.gen {' '.join(txtlists)}`.  DO NOT EDIT!  */"
    )
    errnos: dict[str, tuple[int, str]] = {}
    for txtlist in sys.argv[1:]:
        with open(txtlist, "r") as fh:
            for line in fh:
                if line.startswith("#"):
                    print(f"/* {line[1:].strip()}  */")
                    continue
                _num, name, desc = line.split(maxsplit=2)
                num = int(_num)
                desc = desc.strip()
                errnos[name] = (num, desc)
    print()
    print("#ifndef _9P_LINUX_ERRNO_H_")
    print("#define _9P_LINUX_ERRNO_H_")
    print()
    namelen = max(len(name) for name in errnos.keys())
    numlen = max(len(str(num)) for (num, desc) in errnos.values())
    for name in errnos:
        print(f"#define LINUX_{name.ljust(namelen)}  {str(errnos[name][0]).rjust(numlen)}  /* {errnos[name][1]} */")
    print()
    print("#endif /* _9P_LINUX_ERRNO_H_ */")


if __name__ == "__main__":
    import sys

    print_errnos(sys.argv[1:])