nixpkgs/pkgs/games/stockfish/default.nix
Profpatsch 4a7f99d55d treewide: with stdenv.lib; in meta -> with lib;
Part of: https://github.com/NixOS/nixpkgs/issues/108938

meta = with stdenv.lib;

is a widely used pattern. We want to slowly remove
the `stdenv.lib` indirection and encourage people
to use `lib` directly. Thus let’s start with the meta
field.

This used a rewriting script to mostly automatically
replace all occurances of this pattern, and add the
`lib` argument to the package header if it doesn’t
exist yet.

The script in its current form is available at
https://cs.tvl.fyi/depot@2f807d7f141068d2d60676a89213eaa5353ca6e0/-/blob/users/Profpatsch/nixpkgs-rewriter/default.nix
2021-01-11 10:38:22 +01:00

50 lines
1.3 KiB
Nix

{ lib, stdenv, fetchurl }:
let arch = if stdenv.isx86_64 then "x86-64" else
if stdenv.isi686 then "x86-32" else
"unknown";
version = "12";
nnueFile = "nn-82215d0fd0df.nnue";
nnue = fetchurl {
name = nnueFile;
url = "https://tests.stockfishchess.org/api/nn/${nnueFile}";
sha256 = "1r4yqrh4di05syyhl84hqcz84djpbd605b27zhbxwg6zs07ms8c2";
};
in
stdenv.mkDerivation {
pname = "stockfish";
inherit version;
src = fetchurl {
url = "https://github.com/official-stockfish/Stockfish/archive/sf_${version}.tar.gz";
sha256 = "16980aicm5i6i9252239q4f9bcxg1gnqkv6nphrmpz4drg8i3v6i";
};
postUnpack = ''
sourceRoot+=/src
echo ${nnue}
cp "${nnue}" "$sourceRoot/${nnueFile}"
'';
makeFlags = [ "PREFIX=$(out)" "ARCH=${arch}" ];
buildFlags = [ "build" ];
enableParallelBuilding = true;
meta = with lib; {
homepage = "https://stockfishchess.org/";
description = "Strong open source chess engine";
longDescription = ''
Stockfish is one of the strongest chess engines in the world. It is also
much stronger than the best human chess grandmasters.
'';
maintainers = with maintainers; [ luispedro peti ];
platforms = ["x86_64-linux" "i686-linux"];
license = licenses.gpl2;
};
}