Files
cpp-objrender/flake.nix

290 lines
9.8 KiB
Nix

rec {
description = "C++ ObjRender";
inputs = {
nixpkgs.url = "nixpkgs"; # Use nixpkgs from system registry
flake-utils.url = "github:numtide/flake-utils";
rust-overlay.url = "github:oxalica/rust-overlay";
rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
clj-nix.url = "github:jlesquembre/clj-nix";
clj-nix.inputs.nixpkgs.follows = "nixpkgs";
};
outputs = {
self,
nixpkgs,
flake-utils,
rust-overlay,
clj-nix,
}:
# Create a shell (and possibly package) for each possible system, not only x86_64-linux
flake-utils.lib.eachDefaultSystem (system: let
pkgs = import nixpkgs {
inherit system;
config.allowUnfree = true;
overlays = [
rust-overlay.overlays.default
];
};
inherit (pkgs) lib stdenv;
# ===========================================================================================
# Define custom dependencies
# ===========================================================================================
# 64 bit C/C++ compilers that don't collide (use the same libc)
bintools = pkgs.wrapBintoolsWith {
bintools = pkgs.bintools.bintools; # Unwrapped bintools
libc = pkgs.glibc;
};
gcc = lib.hiPrio (pkgs.wrapCCWith {
cc = pkgs.gcc.cc; # Unwrapped gcc
libc = pkgs.glibc;
bintools = bintools;
});
clang = pkgs.wrapCCWith {
cc = pkgs.clang.cc; # Unwrapped clang
libc = pkgs.glibc;
bintools = bintools;
};
# Multilib C/C++ compilers that don't collide (use the same libc)
# bintools_multilib = pkgs.wrapBintoolsWith {
# bintools = pkgs.bintools.bintools; # Unwrapped bintools
# libc = pkgs.glibc_multi;
# };
# gcc_multilib = pkgs.hiPrio (pkgs.wrapCCWith {
# cc = pkgs.gcc.cc; # Unwrapped gcc
# libc = pkgs.glibc_multi;
# bintools = bintools_multilib;
# });
# clang_multilib = pkgs.wrapCCWith {
# cc = pkgs.clang.cc; # Unwrapped clang
# libc = pkgs.glibc_multi;
# bintools = bintools_multilib;
# };
# Raylib CPP wrapper
raylib-cpp = stdenv.mkDerivation {
pname = "raylib-cpp";
version = "5.5.0-unstable-2025-11-12";
src = pkgs.fetchFromGitHub {
owner = "RobLoach";
repo = "raylib-cpp";
rev = "21b0d0f57a09a7f741d20b7157f440ae87f02c76";
hash = "sha256-P9x6Zc5t648gR7oYXe38PEX/a4oh4PfuVCnjT0vC10k=";
};
# autoPatchelfHook is needed for appendRunpaths
nativeBuildInputs = with pkgs; [
cmake
# autoPatchelfHook
];
buildInputs = with pkgs; [
raylib
glfw
SDL2
];
propagatedBuildInputs = with pkgs; [
libGLU
libx11
];
cmakeFlags = [
"-DBUILD_RAYLIB_CPP_EXAMPLES=OFF"
"-DBUILD_TESTING=OFF"
# Point CMake to the nixpkgs raylib so it doesn't try to fetch its own
"-Draylib_DIR=${pkgs.raylib}/lib/cmake/raylib"
];
};
# ===========================================================================================
# Specify dependencies
# https://nixos.org/manual/nixpkgs/stable/#ssec-stdenv-dependencies-overview
# Just for a "nix develop" shell, buildInputs can be used for everything.
# ===========================================================================================
# Add dependencies to nativeBuildInputs if they are executed during the build:
# - Those which are needed on $PATH during the build, for example cmake and pkg-config
# - Setup hooks, for example makeWrapper
# - Interpreters needed by patchShebangs for build scripts (with the --build flag), which can be the case for e.g. perl
nativeBuildInputs = with pkgs; [
# Languages:
# bintools
gcc
# clang
# bintools_multilib
# gcc_multilib
# clang_multilib
# C/C++:
gdb
valgrind
# gnumake
cmake
# pkg-config
# clang-tools
# compdb
# pprof
gprof2dot
kdePackages.kcachegrind
];
# Add dependencies to buildInputs if they will end up copied or linked into the final output or otherwise used at runtime:
# - Libraries used by compilers, for example zlib
# - Interpreters needed by patchShebangs for scripts which are installed, which can be the case for e.g. perl
buildInputs = with pkgs; [
# C/C++:
# boost
# sfml
raylib
raylib-cpp
tinyobjloader
# gperftools
];
# ===========================================================================================
# Define buildable + installable packages
# ===========================================================================================
# package = stdenv.mkDerivation {
# inherit nativeBuildInputs buildInputs;
# pname = "";
# version = "1.0.0";
# src = ./.;
#
# installPhase = ''
# mkdir -p $out/bin
# mv ./BINARY $out/bin
# '';
# };
in rec {
# Provide package for "nix build"
# defaultPackage = package;
# defaultApp = flake-utils.lib.mkApp {
# drv = defaultPackage;
# };
# Provide environment for "nix develop"
devShell = pkgs.mkShell {
inherit nativeBuildInputs buildInputs;
name = description;
# =========================================================================================
# Define environment variables
# =========================================================================================
# Custom dynamic libraries:
# LD_LIBRARY_PATH = builtins.concatStringsSep ":" [
# # Rust Bevy GUI app:
# # "${pkgs.xorg.libX11}/lib"
# # "${pkgs.xorg.libXcursor}/lib"
# # "${pkgs.xorg.libXrandr}/lib"
# # "${pkgs.xorg.libXi}/lib"
# # "${pkgs.libGL}/lib"
#
# # JavaFX app:
# # "${pkgs.libGL}/lib"
# # "${pkgs.gtk3}/lib"
# # "${pkgs.glib.out}/lib"
# # "${pkgs.xorg.libXtst}/lib"
# ];
# Dynamic libraries from buildinputs:
# LD_LIBRARY_PATH = nixpkgs.lib.makeLibraryPath buildInputs;
# =========================================================================================
# Define shell environment
# =========================================================================================
# Setup the shell when entering the "nix develop" environment (bash script).
shellHook = let
mkCmakeScript = type: let
typeLower = lib.toLower type;
in
pkgs.writers.writeFish "cmake-${typeLower}.fish" ''
cd $FLAKE_PROJECT_ROOT
echo "Removing build directory ./cmake-build-${typeLower}/"
rm -rf ./cmake-build-${typeLower}
echo "Creating build directory"
mkdir cmake-build-${typeLower}
cd cmake-build-${typeLower}
echo "Running cmake"
cmake -G "Unix Makefiles" \
-DCMAKE_BUILD_TYPE="${type}" \
-DRAYLIB_CPP_INCLUDE_DIR="${raylib-cpp}/include" \
-DTINYOBJLOADER_INCLUDE_DIR="${pkgs.tinyobjloader}/include" \
..
echo "Generating .clangd"
echo "CompileFlags:" >> .clangd
echo " Add:" >> .clangd
echo " - \"-I${pkgs.raylib}/include\"" >> .clangd
echo " - \"-I${raylib-cpp}/include\"" >> .clangd
echo " - \"-I${pkgs.tinyobjloader}/include\"" >> .clangd
echo "Linking compile_commands.json"
cd ..
ln -sf ./cmake-build-${typeLower}/compile_commands.json ./compile_commands.json
echo "Linking .clangd"
ln -sf ./cmake-build-${typeLower}/.clangd ./.clangd
'';
cmakeDebug = mkCmakeScript "Debug";
cmakeRelease = mkCmakeScript "Release";
mkBuildScript = type: let
typeLower = lib.toLower type;
in
pkgs.writers.writeFish "cmake-build.fish" ''
cd $FLAKE_PROJECT_ROOT/cmake-build-${typeLower}
echo "Running cmake"
cmake --build .
'';
buildDebug = mkBuildScript "Debug";
buildRelease = mkBuildScript "Release";
# Use this to specify commands that should be ran after entering fish shell
initProjectShell = pkgs.writers.writeFish "init-shell.fish" ''
echo "Entering \"${description}\" environment..."
# Determine the project root, used e.g. in cmake scripts
set -g -x FLAKE_PROJECT_ROOT (git rev-parse --show-toplevel)
# Rust Bevy:
# abbr -a build-release-windows "CARGO_FEATURE_PURE=1 cargo xwin build --release --target x86_64-pc-windows-msvc"
# C/C++:
abbr -a cmake-debug "${cmakeDebug}"
abbr -a cmake-release "${cmakeRelease}"
abbr -a build-debug "${buildDebug}"
abbr -a build-release "${buildRelease}"
# Clojure:
# abbr -a clojure-deps "deps-lock --lein"
# Python:
# abbr -a run "python ./app/main.py"
# abbr -a profile "py-spy record -o profile.svg -- python ./app/main.py && firefox profile.svg"
# abbr -a ptop "py-spy top -- python ./app/main.py"
'';
in
builtins.concatStringsSep "\n" [
# Launch into pure fish shell
''
exec "$(type -p fish)" -C "source ${initProjectShell} && abbr -a menu '${pkgs.bat}/bin/bat "${initProjectShell}"'"
''
];
};
});
}