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users: add a "services" option via which to configure per-user systemd services

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Colin 2023-09-12 04:43:23 +00:00
parent 6addf5a3b2
commit 6138291a8d
1 changed files with 42 additions and 1 deletions
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43
modules/users.nix
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@ -1,4 +1,4 @@
{ config, lib, options, sane-lib, ... }:
{ config, lib, options, sane-lib, utils, ... }:
let
inherit (builtins) attrValues;
@ -42,6 +42,16 @@ let
these end up in ~/.profile
'';
};
services = mkOption {
# see: <repo:nixos/nixpkgs:nixos/lib/utils.nix>
type = utils.systemdUtils.types.services;
default = {};
description = ''
systemd user-services to define for this user.
populates files in ~/.config/systemd.
'';
};
};
};
userModule = let nixConfig = config; in types.submodule ({ name, config, ... }: {
@ -81,6 +91,37 @@ let
in
lib.concatStringsSep "\n" env;
}
{
fs = lib.mkMerge (mapAttrsToList (name: value:
let
# see: <repo:nixos/nixpkgs:nixos/lib/utils.nix>
# see: <repo:nix-community/home-manager:modules/systemd.nix>
cleanName = utils.systemdUtils.lib.mkPathSafeName name;
generatedUnit = utils.systemdUtils.lib.serviceToUnit name value;
#^ generatedUnit contains keys:
# - text
# - aliases (IGNORED)
# - wantedBy
# - requiredBy
# - enabled (IGNORED)
# - overrideStrategy (IGNORED)
# TODO: error if one of the above ignored fields are set
symlinkData = {
text = generatedUnit.text;
targetName = "${cleanName}.service"; # systemd derives unit name from symlink target
};
serviceEntry = {
".config/systemd/user/${name}.service".symlink = symlinkData;
};
wants = builtins.map (wantedBy: {
".config/systemd/user/${wantedBy}.wants/${name}.service".symlink = symlinkData;
}) generatedUnit.wantedBy;
requires = builtins.map (requiredBy: {
".config/systemd/user/${requiredBy}.requires/${name}.service".symlink = symlinkData;
}) generatedUnit.requiredBy;
in lib.mkMerge ([ serviceEntry ] ++ wants ++ requires)
) config.services);
}
];
});
processUser = user: defn: