#!/usr/bin/env python3
"""
Run `uv pip sync` with a `requirements.txt` file in the current folder.

This will pick which file to use.
"""

import os
from pathlib import Path
import shlex
import subprocess
import sys


if __name__ == "__main__":    
    # If we're on an external disk, disable the warning about being
    # unable to clone files.  In particular:
    #
    #     warning: Failed to clone files; falling back to full copy.
    #     This may lead to degraded performance.  If the cache and target 
    #     directories are on different filesystems, reflinking may not
    #     be supported.
    #
    #     If this is intentional, set `export UV_LINK_MODE=copy` or use 
    #     `--link-mode=copy` to suppress this warning.
    #
    # On macOS, this means "are you in a path that starts with /Volumes".
    if os.getcwd().startswith("/Volumes/"):
        os.environ.update({"UV_LINK_MODE": "copy"})
    
    # If a dev_requirements.txt file is available, use that, otherwise use
    # the standard `requirements.txt`.
    if Path("dev_requirements.txt").exists():
        chosen_file = "dev_requirements.txt"
    else:
        chosen_file = "requirements.txt"

    # Build the command to run.
    cmd = ["uv", "pip", "sync", chosen_file]

    if "--no-cache" in sys.argv:
        cmd.append("--no-cache")

    # Actually run the command, and print a debug entry for it.
    subprocess.check_call(
        [str(Path.home() / "repos/scripts/debug/print_info"), f"-> {shlex.join(cmd)}"]
    )
    subprocess.check_call(cmd, stdout=subprocess.DEVNULL)