DragonOS/tools/nix-dev-shell/flake.nix

{
  description = "dragonos-nix-dev";
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
    fenix.url = "github:nix-community/fenix";
    fenix.inputs.nixpkgs.follows = "nixpkgs";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs =
    {
      self,
      nixpkgs,
      fenix,
      flake-utils,
      ...
    }@inputs:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
        rust-toolchain = fenix.packages.${system}.fromToolchainFile {
          file = ../../kernel/rust-toolchain.toml;
          sha256 = "sha256-3JA9u08FrvsLdi5dGIsUeQZq3Tpn9RvWdkLus2+5cHs=";
        };
      in
      {
        devShells.default = pkgs.mkShell {
          # 基础工具链
          buildInputs = with pkgs; [
            git
            llvm
            libclang
            rust-toolchain
            gcc
          ];

          env = {
            LIBCLANG_PATH = "${pkgs.libclang.lib}/lib";
            USING_DRAGONOS_NIX_ENV = 1;
          };

          # Shell启动脚本
          shellHook = ''
            echo "欢迎进入 DragonOS Nix 开发环境!"
            echo "要运行 DragonOS，请构建内核、rootfs，再QEMU运行"
            echo "  构建内核:    make kernel"
            echo "  构建 rootfs: nix run .#rootfs-x86_64"
            echo "  QEMU 运行:   nix run .#start-x86_64"
            echo "  文档：       https://docs.dragonos.org.cn/"
          '';
        };

        # 兼容旧版nix-shell命令
        defaultPackage = self.devShells.${system}.default;
      }
    );
}