359 lines
12 KiB
Nix
359 lines
12 KiB
Nix
rec {
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description = "C++ MassSprings";
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inputs = {
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nixpkgs.url = "nixpkgs"; # Use nixpkgs from system registry
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flake-utils.url = "github:numtide/flake-utils";
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};
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outputs = {
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self,
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nixpkgs,
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flake-utils,
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}:
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# Create a shell (and possibly package) for each possible system, not only x86_64-linux
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flake-utils.lib.eachDefaultSystem (
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system: let
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pkgs = import nixpkgs {
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inherit system;
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config.allowUnfree = true;
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overlays = [];
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};
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inherit (pkgs) lib stdenv;
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windowsPkgs = import nixpkgs {
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inherit system;
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crossSystem = {
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config = "x86_64-w64-mingw32";
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};
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config.allowUnfree = true;
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};
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# ===========================================================================================
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# Define custom dependencies
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# ===========================================================================================
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raygui = stdenv.mkDerivation (finalAttrs: {
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pname = "raygui";
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version = "4.0-unstable-2026-02-24";
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src = pkgs.fetchFromGitHub {
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owner = "raysan5";
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repo = "raygui";
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rev = "5788707b6b7000343c14653b1ad3b971ca0597e4";
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hash = "sha256-wKylPeNw7wO5xuTfnp1OYETQ78EPlr4NU9erbmIFgjE=";
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};
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patches = [./raygui.patch];
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dontBuild = true;
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installPhase = ''
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runHook preInstall
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mkdir -p $out/{include,lib/pkgconfig}
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install -Dm644 src/raygui.h $out/include/raygui.h
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cat <<EOF > $out/lib/pkgconfig/raygui.pc
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prefix=$out
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includedir=$out/include
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Name: raygui
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Description: Simple and easy-to-use immediate-mode gui library
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URL: https://github.com/raysan5/raygui
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Version: ${finalAttrs.version}
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Cflags: -I"{includedir}"
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EOF
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runHook postInstall
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'';
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});
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thread-pool = stdenv.mkDerivation {
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pname = "thread-pool";
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version = "5.1.0";
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src = pkgs.fetchFromGitHub {
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owner = "bshoshany";
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repo = "thread-pool";
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rev = "bd4533f1f70c2b975cbd5769a60d8eaaea1d2233";
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hash = "sha256-/RMo5pe9klgSWmoqBpHMq2lbJsnCxMzhsb3ZPsw3aZw=";
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};
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# Header-only library
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dontBuild = true;
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installPhase = ''
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mkdir -p $out
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mv ./include $out/include
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'';
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};
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# ===========================================================================================
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# Specify dependencies
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# https://nixos.org/manual/nixpkgs/stable/#ssec-stdenv-dependencies-overview
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# Just for a "nix develop" shell, buildInputs can be used for everything.
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# ===========================================================================================
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# Add dependencies to nativeBuildInputs if they are executed during the build:
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# - Those which are needed on $PATH during the build, for example cmake and pkg-config
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# - Setup hooks, for example makeWrapper
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# - Interpreters needed by patchShebangs for build scripts (with the --build flag), which can be the case for e.g. perl
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nativeBuildInputs = with pkgs; [
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# Languages:
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binutils
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gcc
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# C/C++:
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gdb
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valgrind
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# gnumake
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cmake
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ninja
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# pkg-config
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# clang-tools
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# compdb
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# pprof
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# gprof2dot
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perf
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hotspot
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kdePackages.kcachegrind
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gdbgui
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# renderdoc
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];
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# Add dependencies to buildInputs if they will end up copied or linked into the final output or otherwise used at runtime:
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# - Libraries used by compilers, for example zlib
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# - Interpreters needed by patchShebangs for scripts which are installed, which can be the case for e.g. perl
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buildInputs = with pkgs; [
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# C/C++:
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raylib
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raygui
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thread-pool
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# Debugging
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tracy-wayland
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backward-cpp
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libbfd
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];
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# ===========================================================================================
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# Define buildable + installable packages
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# ===========================================================================================
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package = stdenv.mkDerivation rec {
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inherit buildInputs;
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pname = "masssprings";
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version = "1.0.0";
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src = ./.;
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nativeBuildInputs = with pkgs; [
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gcc
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cmake
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];
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cmakeFlags = [
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"-DDISABLE_TRACY=On"
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"-DDISABLE_BACKWARD=On"
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];
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installPhase = ''
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mkdir -p $out/bin
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cp ./${pname} $out/bin/
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cp $src/default.puzzle $out/bin/
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cp -r $src/fonts $out/bin/fonts
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cp -r $src/shader $out/bin/shader
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'';
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};
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windowsPackage = windowsPkgs.stdenv.mkDerivation rec {
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pname = "masssprings";
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version = "1.0.0";
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src = ./.;
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# nativeBuildInputs must be from the build-platform (not cross)
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# so we use "pkgs" here, not "windowsPkgs"
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nativeBuildInputs = with pkgs; [
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cmake
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];
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buildInputs = with windowsPkgs; [
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raylib
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raygui
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thread-pool
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];
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cmakeFlags = [
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"-DCMAKE_SYSTEM_NAME=Windows"
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"-DDISABLE_TRACY=On"
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"-DDISABLE_BACKWARD=On"
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];
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installPhase = ''
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mkdir -p $out/bin
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cp ./${pname}.exe $out/bin/
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cp $src/default.puzzle $out/bin/
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cp -r $src/fonts $out/bin/fonts
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cp -r $src/shader $out/bin/shader
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'';
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};
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in rec {
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# Provide packages for "nix build" and "nix run"
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packages = {
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default = package;
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windows = windowsPackage;
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};
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apps.default = flake-utils.lib.mkApp {drv = package;};
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# Provide environment for "nix develop"
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devShells = {
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default = pkgs.mkShell {
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inherit nativeBuildInputs buildInputs;
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name = description;
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# =========================================================================================
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# Define environment variables
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# =========================================================================================
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# Custom dynamic libraries:
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# LD_LIBRARY_PATH = builtins.concatStringsSep ":" [
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# # Rust Bevy GUI app:
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# # "${pkgs.xorg.libX11}/lib"
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# # "${pkgs.xorg.libXcursor}/lib"
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# # "${pkgs.xorg.libXrandr}/lib"
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# # "${pkgs.xorg.libXi}/lib"
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# # "${pkgs.libGL}/lib"
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#
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# # JavaFX app:
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# # "${pkgs.libGL}/lib"
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# # "${pkgs.gtk3}/lib"
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# # "${pkgs.glib.out}/lib"
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# # "${pkgs.xorg.libXtst}/lib"
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# ];
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# Dynamic libraries from buildinputs:
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LD_LIBRARY_PATH = nixpkgs.lib.makeLibraryPath buildInputs;
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# =========================================================================================
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# Define shell environment
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# =========================================================================================
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# Setup the shell when entering the "nix develop" environment (bash script).
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shellHook = let
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mkCmakeScript = type: let
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typeLower = lib.toLower type;
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in
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pkgs.writers.writeFish "cmake-${typeLower}.fish" ''
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cd $FLAKE_PROJECT_ROOT
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# set -g -x CC ${pkgs.clang}/bin/clang
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# set -g -x CXX ${pkgs.clang}/bin/clang++
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echo "Removing build directory ./cmake-build-${typeLower}/"
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rm -rf ./cmake-build-${typeLower}
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echo "Creating build directory"
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mkdir cmake-build-${typeLower}
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cd cmake-build-${typeLower}
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echo "Running cmake"
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cmake -G "Ninja" \
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-DCMAKE_BUILD_TYPE="${type}" \
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..
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echo "Linking compile_commands.json"
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cd ..
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ln -sf ./cmake-build-${typeLower}/compile_commands.json ./compile_commands.json
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'';
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cmakeDebug = mkCmakeScript "Debug";
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cmakeRelease = mkCmakeScript "Release";
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mkBuildScript = type: let
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typeLower = lib.toLower type;
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in
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pkgs.writers.writeFish "cmake-build.fish" ''
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cd $FLAKE_PROJECT_ROOT/cmake-build-${typeLower}
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echo "Running cmake"
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NIX_ENFORCE_NO_NATIVE=0 cmake --build . -j$(nproc)
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'';
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buildDebug = mkBuildScript "Debug";
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buildRelease = mkBuildScript "Release";
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# Use this to specify commands that should be ran after entering fish shell
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initProjectShell = pkgs.writers.writeFish "init-shell.fish" ''
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echo "Entering \"${description}\" environment..."
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# Determine the project root, used e.g. in cmake scripts
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set -g -x FLAKE_PROJECT_ROOT (git rev-parse --show-toplevel)
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# C/C++:
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abbr -a cmake-debug "${cmakeDebug}"
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abbr -a cmake-release "${cmakeRelease}"
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abbr -a build-debug "${buildDebug}"
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abbr -a build-release "${buildRelease}"
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abbr -a debug "${buildDebug} && ./cmake-build-debug/masssprings"
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abbr -a release "${buildRelease} && ./cmake-build-release/masssprings"
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abbr -a debug-clean "${cmakeDebug} && ${buildDebug} && ./cmake-build-debug/masssprings"
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abbr -a release-clean "${cmakeRelease} && ${buildRelease} && ./cmake-build-release/masssprings"
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abbr -a rungdb "${buildDebug} && gdb --tui ./cmake-build-debug/masssprings"
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abbr -a runtracy "tracy -a 127.0.0.1 &; ${buildRelease} && sudo -E ./cmake-build-release/masssprings"
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abbr -a runvalgrind "${buildDebug} && valgrind --leak-check=full --show-reachable=no --show-leak-kinds=definite,indirect,possible --track-origins=no --suppressions=valgrind.supp --log-file=valgrind.log ./cmake-build-debug/masssprings && cat valgrind.log"
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abbr -a runclion "clion ./CMakeLists.txt 2>/dev/null 1>&2 & disown;"
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'';
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in
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builtins.concatStringsSep "\n" [
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# Launch into pure fish shell
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''
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exec "$(type -p fish)" -C "source ${initProjectShell} && abbr -a menu '${pkgs.bat}/bin/bat "${initProjectShell}"'"
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''
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];
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};
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# TODO: Doesn't work
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# FHS environment for renderdoc. Access with "nix develop .#renderdoc".
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# https://ryantm.github.io/nixpkgs/builders/special/fhs-environments
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# renderdoc =
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# (pkgs.buildFHSEnv {
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# name = "renderdoc-env";
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#
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# targetPkgs = pkgs:
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# with pkgs; [
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# # RenderDoc
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# renderdoc
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#
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# # Build tools
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# gcc
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# cmake
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#
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# # Raylib
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# raylib
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# libGL
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# mesa
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#
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# # X11
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# libx11
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# libxcursor
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# libxrandr
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# libxinerama
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# libxi
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# libxext
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# libxfixes
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#
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# # Wayland
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# wayland
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# wayland-protocols
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# libxkbcommon
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# ];
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#
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# runScript = "fish";
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#
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# profile = ''
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# '';
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# }).env;
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};
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}
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);
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}
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