configuration.nix

# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];
  
  hardware.cpu.intel.updateMicrocode = true;
  hardware.bluetooth.enable = true;
  sound.enable = true;

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  networking.hostName = "amara"; # Define your hostname.
  networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

  # Select internationalisation properties.
  i18n = {
    consoleFont = "Lat2-Terminus16";
    consoleKeyMap = "us";
    defaultLocale = "en_US.UTF-8";
  };

  # Set your time zone.
  time.timeZone = "Europe/Amsterdam";

  # List packages installed in system profile. To search by name, run:
  # $ nix-env -qaP | grep wget
  environment.systemPackages = with pkgs; [
    wget
    gitAndTools.gitFull
    emacs
    neovim
    qutebrowser
    ntfs3g
    vifm
    acpi
    manpages
    htop
    udiskie
    pcmanfm
    arc-theme
    arc-icon-theme
    "qt5.qtwebengine"
    lxappearance
    source-sans-pro
    i3blocks
    unzip
    unrar
    feh
  ];

  # Allow non-free
  nixpkgs.config.allowUnfree = true;

  # List services that you want to enable:
  services.nixosManual.showManual = true;

  # Set fish as default shell
  programs.fish.enable =true;
  users.defaultUserShell = "/run/current-system/sw/bin/fish";

  # Create a systemd user service for emacs daemon. This is useful because
  # systemd will take care of launching emacs in the background and I
  # will just have to connect to it through emacs-client. This is a
  # user service. This means I have to pass the "--user" option to
  # systemd when I want to control the service.
  systemd.user.services.emacs = {
    description                 = "Emacs: the extensible, self-documenting text editor";


    serviceConfig               = {
      Type      = "forking";
      ExecStart = "${pkgs.emacs}/bin/emacs --daemon";
      ExecStop  = "${pkgs.emacs}/bin/emacsclient --eval (kill-emacs)";
      Restart   = "always";
    };

    # I want the emacs service to be started with the rest of the user services
    wantedBy = [ "default.target" ];
  };

  # Enable the OpenSSH daemon.
  # services.openssh.enable = true;

  # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;

  # Enable CUPS to print documents.
  # services.printing.enable = true;

  # Enable the X11 windowing system.
    services.xserver = {
    libinput.enable = true;
    libinput.disableWhileTyping = true;
    libinput.tapping = true;
    enable = true;
    layout = "us";
    xkbOptions = "terminate:ctrl_alt_bksp, ctrl:nocaps";
    videoDrivers = [ "intel" ];
    windowManager.i3.enable = true;
    };

  # TODO
    # displayManager.sessionCommands = ''
    # ${pkgs.xorg.xhost}/bin/xhost +SI:localuser:$USER
    # '';
    # };
    # services.xserver.windowManager.exwm = {
    #   enable = true;
    #   enableDefaultConfig = false;

  environment.variables = {
      GTK_DATA_PREFIX = "/run/current-system/sw";
    };

   environment.pathsToLink = [
      "/share"
    ];

  services.xserver.displayManager.sessionCommands = ''
    export GDK_PIXBUF_MODULE_FILE=`echo ${pkgs.librsvg.out}/lib/gdk-pixbuf-2.0/*/loaders.cache`
  '';

  nixpkgs.config.packageOverrides = pkgs: rec {
    qt4 = pkgs.qt4.override {
      gtkStyle = true;
    };
    qt5.base = pkgs.qt5.base.override {
      gtkStyle = true;
    };
  };

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.extraUsers.taohansen = {
    isNormalUser = true;
    uid = 1000;
  #  users.extraGroups.wheel.gid = 0;
    extraGroups = ["wheel" "disk" "audio" "cdrom" "video" "systemd-journal"];
  };

  security.sudo = {
    enable = true;
    wheelNeedsPassword = false;
  };

  # The NixOS release to be compatible with for stateful data such as databases.
  system.stateVersion = "17.09";
  system.autoUpgrade.enable = true;
}