# SPDX-License-Identifier: AGPL-3.0-only
# Copyright 2026-present the Unsloth AI Inc. team. All rights reserved.

"""Snapshot CHANGELOG.md into the studio package at build time.

CHANGELOG.md at the repo root stays the one file to edit. Copying it here,
rather than in build.sh, means every packaging path ships it, so release notes
still render when the popup cannot reach GitHub."""

from __future__ import annotations

import shutil
from pathlib import Path

from setuptools.command.build_py import build_py as _build_py

ROOT = Path(__file__).resolve().parent
SOURCE = ROOT / "CHANGELOG.md"
SNAPSHOT = ROOT / "studio" / "CHANGELOG.md"


class build_py(_build_py):
    def run(self) -> None:
        # Beside the sources only if writable (PEP 517 may build an immutable
        # checkout); into the staging directory always.
        if SOURCE.is_file():
            try:
                shutil.copyfile(SOURCE, SNAPSHOT)
            except OSError:
                pass
        super().run()
        if not SOURCE.is_file():
            return
        staged = Path(self.build_lib) / "studio" / "CHANGELOG.md"
        staged.parent.mkdir(parents = True, exist_ok = True)
        shutil.copyfile(SOURCE, staged)