Install SDL2 libraries so Rust+MSVC can find them.

install_sdl2_rust_msvc.py

from pathlib import Path
from urllib.request import urlopen
from zipfile import ZipFile
from io import BytesIO
import os
import sys

assert 'win' in sys.platform, "We must be running on Windows."

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

HOMEDIR = Path(os.environ['HOMEDRIVE'] + os.environ['HOMEPATH'])

SDL_VERSION = "2.0.9"

SDL_URL = f"https://www.libsdl.org/release/SDL2-devel-{SDL_VERSION}-VC.zip"

ZIP_LIBDIR_PREFIX = f"SDL2-{SDL_VERSION}/lib/x64/"

DLL_NAME = "SDL2.dll"

ZIP_DLL = f"{ZIP_LIBDIR_PREFIX}{DLL_NAME}"

CHANNEL = "stable"

TARGET = "x86_64-pc-windows-msvc"

RUSTUP_LIB_DIR = (
    HOMEDIR / ".multirust" / "toolchains" / f"{CHANNEL}-{TARGET}" / "lib" /
    "rustlib" / TARGET / "lib"
)


def extract_to(zip: ZipFile, filename: str, dest_dir: Path):
    data = zip.open(f"{ZIP_LIBDIR_PREFIX}{filename}", "r").read()
    dest = dest_dir / filename
    print(f"Writing {filename} to {dest_dir}.")
    dest.write_bytes(data)


def main():
    assert RUSTUP_LIB_DIR.exists(), f"{RUSTUP_LIB_DIR} must exist!"

    print(f"Retrieving {SDL_URL}...")

    zip = ZipFile(BytesIO(urlopen(SDL_URL).read()))

    libnames = [
        name[len(ZIP_LIBDIR_PREFIX):] for name in zip.namelist()
        if (name.startswith(ZIP_LIBDIR_PREFIX) and
            name.endswith('.lib'))
    ]

    for libname in libnames:
        extract_to(zip, libname, RUSTUP_LIB_DIR)

    extract_to(zip, DLL_NAME, MY_DIR)


if __name__ == "__main__":
    main()