install

#!/usr/bin/env -S uv run --script
# /// script
# requires-python = ">=3.11"
# ///
"""Local bootstrap.

Verifies the toolchain shape this repo expects:

  - `uv` is on PATH (the only Python entry point).
  - The pinned Rust toolchain (rust-toolchain.toml) is resolvable.
  - The dev dependency group is materialized.

Does NOT trigger a maturin build — that's reserved for `./test` /
`./build`. Use `./install` after a fresh clone to confirm the
environment is sane.
"""

from __future__ import annotations

import shutil
import subprocess
import sys
from pathlib import Path

ROOT = Path(__file__).resolve().parent


def _check(cmd: list[str], label: str) -> int:
    print(f"  {label:14} ...", end=" ", flush=True)
    proc = subprocess.run(cmd, cwd=ROOT, capture_output=True, text=True, check=False)
    if proc.returncode != 0:
        print("FAIL")
        sys.stderr.write(proc.stderr)
        return proc.returncode
    print("ok")
    return 0


def main() -> int:
    print(f"bootstrap {ROOT.name}")

    if shutil.which("uv") is None:
        print("uv not on PATH. Install it: https://docs.astral.sh/uv/", file=sys.stderr)
        return 1

    rc = 0
    rc |= _check(["uv", "--version"], "uv")
    rc |= _check(["uv", "sync", "--frozen", "--no-install-project"], "uv sync")
    rc |= _check(["rustup", "show", "active-toolchain"], "rustup")
    if rc != 0:
        return rc

    print("\nNext steps:")
    print("  ./ci.sh all       # run every gate")
    print("  ./test            # cargo test + maturin develop + pytest")
    print("  ./ci.sh --list    # show registered gates")
    return 0


if __name__ == "__main__":
    raise SystemExit(main())