nix-dev-shell/flake.nix

{
  description = "A `devcontainer` feature which install a nix based dev shell ";
  inputs.nixpkgs.url = "nixpkgs/nixos-22.05-small";

  outputs = { self, nixpkgs }:
    let
      name = "nix-dev-shell";
      version = "0.0.1";
      supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
      nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
      devTaskScripts = forAllSystems (system:
        {
          autoTag = nixpkgsFor.system.writeScript "auto_tag.sh" ''
            git tag --force vversion
            git push origin vversion
          '';
        });
    in
    rec {
      packages = forAllSystems (system:
        {
          default = nixpkgsFor.system.stdenv.mkDerivation {
            name = name;
            src = self;
            buildPhase = "echo nothing todo";
            installPhase = "mkdir -p out/bin; install -t out/bin src/hello.sh";
          };
        });

      apps = forAllSystems (system:
        let
          updateLockScript = nixpkgsFor.system.writeShellScriptBin "update_flake_lock.sh" ''
            nix --experimental-features 'nix-command flakes' flake lock --update-input nixpkgs
            nix --experimental-features 'nix-command flakes' build 
          '';
        in
        {
          default = { type = "app"; program = "packages.${system.default}/bin/hello.sh"; };
          devTasks = {
            updateFlakeLock = { type = "app"; program = "updateLockScript/bin/update_flake_lock.sh"; };
            autoTag = { type = "app"; program = "devTaskScripts.${system.autoTag}"; };
          };
        });

      devShells = forAllSystems (system:
        {
          default = nixpkgsFor.system.mkShell {
            name = "dev-shell";
            packages = [ ];
            shellHook = ''
              alias nixe="nix --experimental-features 'nix-command flakes'"
            '';
          };
        });

      hydraJobs = {
        tarball = nixpkgsFor.x86_64-linux.releaseTools.sourceTarball {
          name = name;
          src = self;
          version = version;
          officialRelease = true;
          bootstrapBuildInputs = [ ];
          distPhase = ''
            mkdir out/tarballs
            tar -czvf out/tarballs/name-version.tar.gz *
          '';
        };

        runCommandHook = {
          recurseForDerivations = { };
          autoTag = devTaskScripts.x86_64-linux.autoTag;
        };
      };
    };
}