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529157ef28
Stockfish 16.1 now uses 2 NNUE files: https://stockfishchess.org/blog/2024/stockfish-16-1/
65 lines
2.1 KiB
Nix
65 lines
2.1 KiB
Nix
{ lib, stdenv, fetchurl, fetchFromGitHub }:
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let
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# The x86-64-modern may need to be refined further in the future
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# but stdenv.hostPlatform CPU flags do not currently work on Darwin
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# https://discourse.nixos.org/t/darwin-system-and-stdenv-hostplatform-features/9745
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archDarwin = if stdenv.isx86_64 then "x86-64-modern" else "apple-silicon";
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arch = if stdenv.isDarwin then archDarwin else
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if stdenv.isx86_64 then "x86-64" else
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if stdenv.isi686 then "x86-32" else
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if stdenv.isAarch64 then "armv8" else
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"unknown";
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# These files can be found in src/evaluate.h
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nnueBigFile = "nn-b1a57edbea57.nnue";
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nnueBig = fetchurl {
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name = nnueBigFile;
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url = "https://tests.stockfishchess.org/api/nn/${nnueBigFile}";
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sha256 = "sha256-saV+2+pXTKi4jWg3RzhFeRvrU9iF+H+G1czdVln787I=";
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};
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nnueSmallFile = "nn-baff1ede1f90.nnue";
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nnueSmall = fetchurl {
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name = nnueSmallFile;
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url = "https://tests.stockfishchess.org/api/nn/${nnueSmallFile}";
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sha256 = "sha256-uv8e3h+Qwd0bT3cvHv8phIghgB6BhjRdp/DrQSG9b2M=";
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};
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in
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stdenv.mkDerivation rec {
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pname = "stockfish";
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version = "16.1";
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src = fetchFromGitHub {
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owner = "official-stockfish";
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repo = "Stockfish";
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rev = "sf_${version}";
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sha256 = "sha256-xTtjfJgEHF0SQT9Fw/9RLZA0Quh00jrIbihr7IYCm2U=";
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};
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postUnpack = ''
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sourceRoot+=/src
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cp "${nnueBig}" "$sourceRoot/${nnueBigFile}"
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cp "${nnueSmall}" "$sourceRoot/${nnueSmallFile}"
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'';
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makeFlags = [ "PREFIX=$(out)" "ARCH=${arch}" "CXX=${stdenv.cc.targetPrefix}c++" ];
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buildFlags = [ "build" ];
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enableParallelBuilding = true;
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meta = with lib; {
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homepage = "https://stockfishchess.org/";
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description = "Strong open source chess engine";
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mainProgram = "stockfish";
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longDescription = ''
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Stockfish is one of the strongest chess engines in the world. It is also
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much stronger than the best human chess grandmasters.
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'';
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maintainers = with maintainers; [ luispedro siraben ];
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platforms = ["x86_64-linux" "i686-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin"];
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license = licenses.gpl3Only;
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};
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}
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