add config.system.callService

this is like pkgs.callService except that it passes
config.system.service as a param so that the service
being defined can invoke other services

if this proves to be a good idea, all uses of
pkgs.callService should be changed to use it instead
main
Daniel Barlow 2024-03-16 20:23:18 +00:00
parent af52aafc84
commit fad0a47b75
1 changed files with 29 additions and 0 deletions

View File

@ -29,6 +29,10 @@ in {
services = mkOption {
type = types.attrsOf type_service;
};
system.callService = mkOption {
type = types.functionTo (types.functionTo types.anything);
};
filesystem = mkOption {
type = types.anything;
description = ''
@ -111,6 +115,31 @@ in {
"fw_devlink=off"
] ++ lib.optional (config.rootOptions != null) "rootflags=${config.rootOptions}";
system.callService = path : parameters :
let
typeChecked = caller: type: value:
let
inherit (lib) types mergeDefinitions;
defs = [{ file = caller; inherit value; }];
type' = types.submodule { options = type; };
in (mergeDefinitions [] type' defs).mergedValue;
cp = lib.callPackageWith(pkgs // { svc = config.system.service; });
pkg = cp path {};
checkTypes = t : p : typeChecked (builtins.toString path) t p;
in {
inherit parameters;
build = { dependencies ? [], ... } @ args :
let
s = pkg (checkTypes parameters
(builtins.removeAttrs args ["dependencies"]));
in s.overrideAttrs (o: {
dependencies = (builtins.map (d: d.name) dependencies) ++ o.dependencies;
buildInputs = dependencies ++ o.buildInputs;
});
};
users.root = {
uid = 0; gid= 0; gecos = "Root of all evaluation";
dir = "/home/root/";