nac3/nix/windows/make_msys2_packages.sh

#!/usr/bin/env bash

set -e

cd $(dirname $0)
MSYS2DIR=`pwd`/msys2
mkdir -p $MSYS2DIR/var/lib/pacman $MSYS2DIR/msys/etc

curl -L https://repo.msys2.org/msys/x86_64/pacman-mirrors-20240523-1-any.pkg.tar.zst | tar xvf - -C $MSYS2DIR --zstd
curl -L https://raw.githubusercontent.com/msys2/MSYS2-packages/master/pacman/pacman.conf | sed "s|SigLevel    = Required|SigLevel    = Never|g" | sed "s|/etc/pacman.d|$MSYS2DIR/etc/pacman.d|g" > $MSYS2DIR/etc/pacman.conf

fakeroot pacman --root $MSYS2DIR --config $MSYS2DIR/etc/pacman.conf -Syy
pacman --root $MSYS2DIR --config $MSYS2DIR/etc/pacman.conf --cachedir $MSYS2DIR/msys/cache -Sp mingw-w64-clang-x86_64-rust mingw-w64-clang-x86_64-cmake mingw-w64-clang-x86_64-ninja mingw-w64-clang-x86_64-python-numpy mingw-w64-clang-x86_64-python-setuptools > $MSYS2DIR/packages.txt

echo "{ pkgs } : [" > msys2_packages.nix
while read package; do
	basename=${package##*/}
	name=${basename//\~/}
	hash=$(nix-prefetch-url $package --name $name)
	echo "
(pkgs.fetchurl {
  url = \"$package\";
  sha256 = \"$hash\";
  name = \"$name\";
})" >> msys2_packages.nix
done < $MSYS2DIR/packages.txt
echo "]" >> msys2_packages.nix