nixpkgs/nixos/modules/services/development/hoogle.nix
Bas van Dijk 8ac4b251c8
nixos: use functionTo to prevent evaluation errors while merging
Without this patch merging options like
services.xserver.windowManager.xmonad.extraPackages
results in the evaluation error:

  error: value is a list while a set was expected, at nixpkgs/lib/options.nix:77:23

With this patch we get the desired merging behaviour that just concatenates the
resulting package lists.

(cherry picked from commit 6e99f9fdecb1f28308c8e0aed0fc851737354864)

Co-Authored-By: Silvan Mosberger <contact@infinisil.com>
2021-01-24 17:18:37 +01:00

81 lines
1.9 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.hoogle;
hoogleEnv = pkgs.buildEnv {
name = "hoogle";
paths = [ (cfg.haskellPackages.ghcWithHoogle cfg.packages) ];
};
in {
options.services.hoogle = {
enable = mkEnableOption "Haskell documentation server";
port = mkOption {
type = types.int;
default = 8080;
description = ''
Port number Hoogle will be listening to.
'';
};
packages = mkOption {
type = types.functionTo (types.listOf types.package);
default = hp: [];
defaultText = "hp: []";
example = "hp: with hp; [ text lens ]";
description = ''
The Haskell packages to generate documentation for.
The option value is a function that takes the package set specified in
the <varname>haskellPackages</varname> option as its sole parameter and
returns a list of packages.
'';
};
haskellPackages = mkOption {
description = "Which haskell package set to use.";
default = pkgs.haskellPackages;
defaultText = "pkgs.haskellPackages";
};
home = mkOption {
type = types.str;
description = "Url for hoogle logo";
default = "https://hoogle.haskell.org";
};
host = mkOption {
type = types.str;
description = "Set the host to bind on.";
default = "127.0.0.1";
};
};
config = mkIf cfg.enable {
systemd.services.hoogle = {
description = "Haskell documentation server";
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Restart = "always";
ExecStart = ''${hoogleEnv}/bin/hoogle server --local --port ${toString cfg.port} --home ${cfg.home} --host ${cfg.host}'';
DynamicUser = true;
ProtectHome = true;
RuntimeDirectory = "hoogle";
WorkingDirectory = "%t/hoogle";
};
};
};
}