Function _extract_zip

python/copilot/_cli_download.py:185–204

Extract the CLI binary from a .zip archive.

(data: bytes, binary_name: str, dest_dir: Path)

def _extract_zip(data: bytes, binary_name: str, dest_dir: Path) -> Path:
    """Extract the CLI binary from a .zip archive."""
    with zipfile.ZipFile(io.BytesIO(data)) as zf:
        names = zf.namelist()
        target_member = None
        for name in names:
            if name == binary_name or name.endswith(f"/{binary_name}"):
                target_member = name
                break

        if target_member is None:
            raise RuntimeError(
                f"Binary '{binary_name}' not found in archive. Archive contains: {names}"
            )

        dest_path = dest_dir / binary_name
        with zf.open(target_member) as src, open(dest_path, "wb") as out:
            out.write(src.read())

    return dest_path


def download_cli(version: str | None = None, *, force: bool = False) -> str: