fix: rework home-manager modules to allow option merging

This commit is contained in:
Jake Hamilton 2023-06-25 18:58:14 -07:00
parent 165d8bb203
commit cfaa78937e
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GPG key ID: 9762169A1B35EA68
4 changed files with 154 additions and 81 deletions

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@ -1,7 +1,26 @@
{ core-inputs, user-inputs, snowfall-lib }:
let
inherit (core-inputs.nixpkgs.lib) assertMsg foldl head tail concatMap optionalAttrs mkIf filterAttrs mapAttrs' mkMerge mapAttrsToList optionals mkDefault mkAliasDefinitions;
inherit (core-inputs.nixpkgs.lib)
assertMsg
foldl
head
tail
concatMap
optionalAttrs
optional
mkIf
filterAttrs
mapAttrs'
mkMerge
mapAttrsToList
optionals
mkDefault
traceSeqN
mkAliasDefinitions
mkAliasAndWrapDefinitions
mkOption
types;
user-homes-root = snowfall-lib.fs.get-snowfall-file "homes";
user-modules-root = snowfall-lib.fs.get-snowfall-file "modules";
@ -136,7 +155,11 @@ in
src = "${user-modules-root}/home";
};
user-home-modules-list = builtins.attrValues user-home-modules;
user-home-modules-list = mapAttrsToList
(module-path: module: args@{ pkgs, ... }: (module args) // {
_file = "${user-homes-root}/${module-path}/default.nix";
})
user-home-modules;
create-home' = home-metadata:
let
@ -160,6 +183,30 @@ in
create-home-system-modules = users:
let
created-users = create-homes users;
user-home-modules = snowfall-lib.module.create-modules {
src = "${user-modules-root}/home";
};
shared-modules = mapAttrsToList
(module-path: module: {
_file = "${user-modules-root}/home/${module-path}/default.nix";
config = {
home-manager.sharedModules = [ module ];
};
})
user-home-modules;
snowfall-user-home-module = {
_file = "virtual:snowfallorg/modules/home/user/default.nix";
config = {
home-manager.sharedModules = [
../../modules/home/user/default.nix
];
};
};
extra-special-args-module =
args@{ config
, pkgs
@ -184,15 +231,17 @@ in
};
};
};
system-modules = builtins.map
(name:
let
created-user = created-users.${name};
user-module = head created-user.modules;
other-modules = tail created-user.modules;
other-modules = users.users.${name}.modules or [ ];
user-name = created-user.specialArgs.user;
in
args@{ config
, options
, pkgs
, host ? ""
, ...
@ -200,52 +249,56 @@ in
let
host-matches = created-user.specialArgs.host == host;
# @NOTE(jakehamilton): We *must* specify named attributes here in order
# for home-manager to provide them.
wrapped-user-module = home-args@{ pkgs, lib, osConfig ? { }, ... }:
let
user-module-result = import user-module home-args;
user-imports =
if user-module-result ? imports then
user-module-result.imports
else
[ ];
user-config =
if user-module-result ? config then
user-module-result.config
else
builtins.removeAttrs user-module-result [ "imports" "options" "_file" ];
user = created-user.specialArgs.user;
in
{
_file = builtins.toString user-module;
imports = user-imports;
# @NOTE(jakehamilton): To conform to the config structure of home-manager, we have to
# remap the options coming from `snowfallorg.user.<name>.home.config` since `mkAliasDefinitions`
# does not let us target options within a submodule.
wrap-user-options = user-option:
if (user-option ? "_type") && user-option._type == "merge" then
user-option // {
contents = builtins.map
(merge-entry:
merge-entry.${user-name}.home.config or { }
)
user-option.contents;
}
else
(builtins.trace ''
=============
Snowfall Lib:
Option value for `snowfallorg.user.${user-name}` was not detected to be merged.
config = mkMerge [
user-config
({
snowfallorg.user.name = mkDefault user;
})
(osConfig.snowfallorg.resolved-homes.${user} or { })
];
};
Please report the issue on GitHub with a link to your configuration so we can debug the problem:
https://github.com/snowfallorg/lib/issues/new
=============
'')
user-option;
in
{
_file = "virtual:snowfallorg/home/user/${name}";
config = mkIf host-matches {
# Initialize user information.
snowfallorg.user.${user-name} = { };
snowfallorg.user.${user-name}.home.config = {
snowfallorg.user.name = mkDefault user-name;
};
home-manager = {
users.${user-name} = wrapped-user-module;
sharedModules = other-modules;
users.${user-name} = mkAliasAndWrapDefinitions wrap-user-options options.snowfallorg.user;
# sharedModules = other-modules ++ optional config.snowfallorg.user.${user-name}.home.enable wrapped-user-module;
sharedModules = other-modules ++ optional config.snowfallorg.user.${user-name}.home.enable user-module;
};
};
}
)
(builtins.attrNames created-users);
in
[ extra-special-args-module ] ++ system-modules;
[
extra-special-args-module
snowfall-user-home-module
]
++ (users.modules or [ ])
++ shared-modules
++ system-modules;
};
}