tomato/flake.nix

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{
description = "tomato flake";
# bc flakes and git submodules dont really like each other, you need to
# append '.?submodules=1' to the nix commands.
inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/release-23.11";
flake-utils.url = "github:numtide/flake-utils";
nlohmann-json = {
url = "github:nlohmann/json/v3.11.3"; # TODO: read version from file
flake = false;
};
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sdl3 = {
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url = "github:libsdl-org/SDL/14f584a94bfd49cf1524db75bf3c419fdf9436cd"; # keep in sync this cmake
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flake = false;
};
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sdl3_image = {
url = "github:libsdl-org/SDL_image/a45d6e5b84ccc0f3faae6ba7d561709ed600eee7";
flake = false;
};
};
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outputs = { self, nixpkgs, flake-utils, nlohmann-json, sdl3, sdl3_image }:
flake-utils.lib.eachDefaultSystem (system:
let
pkgs = import nixpkgs { inherit system; };
stdenv = (pkgs.stdenvAdapters.keepDebugInfo pkgs.stdenv);
in {
#packages.default = pkgs.stdenv.mkDerivation {
packages.default = stdenv.mkDerivation {
pname = "tomato";
version = "0.0.0";
src = ./.;
submodules = 1; # does nothing
nativeBuildInputs = with pkgs; [
cmake
ninja
pkg-config
patchelf
];
# for some reason, buildInputs performs some magic an converts them to build dependencies, not runtime dependencies
# also, non static dependencies (?? how to ensure ??)
dlopenBuildInputs = with pkgs; [
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dbus
xorg.libX11
xorg.libXext
xorg.xorgproto
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libxkbcommon
xorg.libICE
xorg.libXi
xorg.libXScrnSaver
xorg.libXcursor
xorg.libXinerama
xorg.libXrandr
xorg.libXxf86vm
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libGL
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pipewire
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# sdl3_image:
libpng
libjpeg
libjxl
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libavif
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#libwebp # still using our own loader
];
buildInputs = with pkgs; [
#(libsodium.override { stdenv = pkgs.pkgsStatic.stdenv; })
#pkgsStatic.libsodium
libsodium
] ++ self.packages.${system}.default.dlopenBuildInputs;
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cmakeFlags = [
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"-DTOMATO_ASAN=OFF"
"-DCMAKE_BUILD_TYPE=RelWithDebInfo"
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"-DFETCHCONTENT_SOURCE_DIR_JSON=${nlohmann-json}" # we care about the version
# TODO: use package instead
"-DFETCHCONTENT_SOURCE_DIR_ZSTD=${pkgs.zstd.src}" # we dont care about the version (we use 1.4.x features)
"-DFETCHCONTENT_SOURCE_DIR_LIBWEBP=${pkgs.libwebp.src}"
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"-DFETCHCONTENT_SOURCE_DIR_SDL3=${sdl3}"
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"-DFETCHCONTENT_SOURCE_DIR_SDL3_IMAGE=${sdl3_image}"
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"-DSDL3IMAGE_JXL=ON"
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];
# TODO: replace with install command
installPhase = ''
mkdir -p $out/bin
mv bin/tomato $out/bin
'';
dontStrip = true; # does nothing
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# copied from nixpkgs's SDL2 default.nix
# SDL is weird in that instead of just dynamically linking with
# libraries when you `--enable-*` (or when `configure` finds) them
# it `dlopen`s them at runtime. In principle, this means it can
# ignore any missing optional dependencies like alsa, pulseaudio,
# some x11 libs, wayland, etc if they are missing on the system
# and/or work with wide array of versions of said libraries. In
# nixpkgs, however, we don't need any of that. Moreover, since we
# don't have a global ld-cache we have to stuff all the propagated
# libraries into rpath by hand or else some applications that use
# SDL API that requires said libraries will fail to start.
#
# You can grep SDL sources with `grep -rE 'SDL_(NAME|.*_SYM)'` to
# list the symbols used in this way.
# TODO: only patch if building FOR nix (like not for when static building)
postFixup =
let
#rpath = lib.makeLibraryPath (dlopenPropagatedBuildInputs ++ dlopenBuildInputs);
rpath = nixpkgs.lib.makeLibraryPath (self.packages.${system}.default.dlopenBuildInputs);
in
nixpkgs.lib.optionalString (pkgs.stdenv.hostPlatform.extensions.sharedLibrary == ".so") ''
patchelf --set-rpath "$(patchelf --print-rpath $out/bin/tomato):${rpath}" "$out/bin/tomato"
'';
};
#packages.debug = pkgs.enableDebugging self.packages.${system}.default;
devShells.${system}.default = pkgs.mkShell {
#inputsFrom = with pkgs; [ SDL2 ];
buildInputs = [ self.packages.${system}.default ]; # this makes a prebuild tomato available in the shell, do we want this?
packages = with pkgs; [
cmake
pkg-config
];
shellHook = "echo hello to tomato dev shell!";
};
apps.default = {
type = "app";
program = "${self.packages.${system}.default}/bin/tomato";
};
}
);
}