70 lines
2.6 KiB
Nix
70 lines
2.6 KiB
Nix
{ lib, utils, ... }:
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let
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# see: <repo:nixos/nixpkgs:nixos/lib/utils.nix>
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# see: <repo:nix-community/home-manager:modules/systemd.nix>
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mkUnit = serviceName: value: utils.systemdUtils.lib.serviceToUnit serviceName {
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inherit (value)
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script
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wantedBy
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;
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serviceConfig = lib.filterAttrs (_: v: v != null) value.serviceConfig;
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unitConfig = {
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inherit (value.unitConfig)
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ConditionEnvironment
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;
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After = value.after;
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Before = value.before;
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BindsTo = value.bindsTo;
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Description = value.description;
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Documentation = value.documentation;
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Wants = value.wants;
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};
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environment = {
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# clear PATH to allow inheriting it from environment.
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# otherwise, nixos would force it to `systemd.globalEnvironment.PATH`, which is mostly tools like sed/find/etc.
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# clearing PATH here allows user services to inherit whatever PATH the graphical session sets
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# (see `dbus-update-activation-environment` call in ~/.config/sway/config),
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# which is critical to making it so user services can see user *programs*/packages.
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#
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# note that systemd provides no way to *append* to the PATH, only to override it (or not).
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# nor do they intend to ever support that:
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# - <https://github.com/systemd/systemd/issues/1082>
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PATH = null;
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} // (value.environment or {});
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};
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in
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{
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# create fs entries for every service, in the systemd user dir.
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options.sane.users = with lib; mkOption {
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type = types.attrsOf (types.submodule ({ config, ...}: {
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fs = lib.concatMapAttrs
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(serviceName: value: let
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cleanName = utils.systemdUtils.lib.mkPathSafeName serviceName;
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generatedUnit = mkUnit serviceName value;
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#^ generatedUnit contains keys:
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# - text
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# - aliases (IGNORED)
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# - wantedBy
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# - requiredBy
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# - enabled (IGNORED)
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# - overrideStrategy (IGNORED)
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# TODO: error if one of the above ignored fields are set
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symlinkData = {
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text = generatedUnit.text;
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targetName = "${cleanName}.service"; # systemd derives unit name from symlink target
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};
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serviceEntry = {
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".config/systemd/user/${serviceName}.service".symlink = symlinkData;
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};
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wants = builtins.map (wantedBy: {
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".config/systemd/user/${wantedBy}.wants/${serviceName}.service".symlink = symlinkData;
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}) generatedUnit.wantedBy;
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in
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lib.mergeAttrsList ([ serviceEntry ] ++ wants)
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)
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config.services
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;
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}));
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};
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}
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