neovim-flake/lib/stdlib-extended.nix

# From home-manager: https://github.com/nix-community/home-manager/blob/master/modules/lib/stdlib-extended.nix
# Just a convenience function that returns the given Nixpkgs standard
# library extended with the HM library.
nixpkgsLib: let
  mkNvimLib = import ./.;
in
  nixpkgsLib.extend (self: super: {
    nvim = mkNvimLib {lib = self;};

    mkLuaBinding = key: action: desc:
      self.mkIf (key != null) {
        "${key}" = {
          inherit action desc;
          lua = true;
          silent = true;
        };
      };

    mkExprBinding = key: action: desc:
      self.mkIf (key != null) {
        "${key}" = {
          inherit action desc;
          lua = true;
          silent = true;
          expr = true;
        };
      };

    mkBinding = key: action: desc:
      self.mkIf (key != null) {
        "${key}" = {
          inherit action desc;
          silent = true;
        };
      };

    mkMappingOption = description: default:
      self.mkOption {
        type = self.types.nullOr self.types.str;
        inherit default description;
      };

    # For forward compatibility.
    literalExpression = super.literalExpression or super.literalExample;
    literalDocBook = super.literalDocBook or super.literalExample;
  })