nixfiles/musicutil/utils/do_replaygain.py

from ..types import File
from ..meta import r128gain_path, ffmpeg_path

from subprocess import run as run_command

def do_replaygain(file: File, skip_if_existing: bool = True) -> None:
    command_args = [
        r128gain_path,
        "-f", ffmpeg_path,
        "-v", "warning",
        file.join_path_to()
    ]

    if skip_if_existing: 
        command_args.append("-s")
    run_command(command_args)