cpp-template/flake.nix at main · wold9168/cpp-template · GitHub

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# Nix flake for wold9168/cpp-template
# Before building with this Nix Flake file,
# please review and modify all sections marked as "Changeme".
{
  description = "Nix flake for wold9168/cpp-template"; # Changeme

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";

    # ═══════════════════════════════════════════════════════════
    # Third-party C/C++ libs without Nix support — fetch via flake = false
    # Uncomment and wire into preConfigure below
    # ═══════════════════════════════════════════════════════════

    # ── Example: CMake-based library (not in nixpkgs) ──
    # example-cmake-lib = {
    #   url = "github:user/cmake-library";
    #   flake = false;
    # };

    # ── Example: Makefile/Automake-based library (not in nixpkgs) ──
    # example-makefile-lib = {
    #   url = "github:user/makefile-library";
    #   flake = false;
    # };
  };

  outputs =
    {
      self,
      nixpkgs,
      ...
    }@inputs:
    let
      forAllSystems = nixpkgs.lib.genAttrs [
        "x86_64-linux"
        "aarch64-linux"
        "x86_64-darwin"
        "aarch64-darwin"
      ];

      pkgsFor = system: import nixpkgs { inherit system; };

      genToolchainInputs =
        pkgs: with pkgs; [
          cmake
          gcc
          gdb
          lldb
          just
          direnv
          clang-tools
          trash-cli
        ];
      genLibInputs =
        pkgs: with pkgs; [
          # lib from Nixpkgs
          # pkgs.fmt
        ];
    in
    {
      devShells = forAllSystems (
        system:
        let
          pkgs = pkgsFor system;
        in
        {
          default = pkgs.mkShell {
            nativeBuildInputs = genToolchainInputs pkgs;
            buildInputs = genLibInputs pkgs;

            shellHook = ''
              echo "nix devShell for cpp-template"
              echo "  cmake : $(cmake --version | head -1)"
              echo "  gcc   : $(gcc --version | head -1)"
              echo "  gdb   : $(gdb --version | head -1)"
              echo "  lldb  : $(lldb --version | head -1)"
              echo "  just  : $(just --version | head -1)"
              echo "  clangd: $(clangd --version | head -1)"
            '';
          };
        }
      );
    };
}