8ac4b251c8
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>
64 lines
1.6 KiB
Nix
64 lines
1.6 KiB
Nix
{ pkgs, lib, config, ... }:
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with lib;
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let
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cfg = config.services.ihaskell;
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ihaskell = pkgs.ihaskell.override {
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packages = self: cfg.extraPackages self;
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};
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in
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{
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options = {
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services.ihaskell = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = "Autostart an IHaskell notebook service.";
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};
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extraPackages = mkOption {
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type = types.functionTo (types.listOf types.package);
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default = self: [];
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example = literalExample ''
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haskellPackages: [
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haskellPackages.wreq
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haskellPackages.lens
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]
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'';
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description = ''
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Extra packages available to ghc when running ihaskell. The
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value must be a function which receives the attrset defined
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in <varname>haskellPackages</varname> as the sole argument.
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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users.users.ihaskell = {
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group = config.users.groups.ihaskell.name;
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description = "IHaskell user";
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home = "/var/lib/ihaskell";
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createHome = true;
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uid = config.ids.uids.ihaskell;
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};
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users.groups.ihaskell.gid = config.ids.gids.ihaskell;
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systemd.services.ihaskell = {
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description = "IHaskell notebook instance";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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serviceConfig = {
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User = config.users.users.ihaskell.name;
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Group = config.users.groups.ihaskell.name;
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ExecStart = "${pkgs.runtimeShell} -c \"cd $HOME;${ihaskell}/bin/ihaskell-notebook\"";
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};
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};
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};
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}
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