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flake-parts/setups/nixos: refactor

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Gabriel Arazas 2024-01-26 17:39:12 +08:00
parent 42a24ada02
commit 7b77035949
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1 changed files with 87 additions and 75 deletions
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162
modules/flake-parts/setups/nixos.nix
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@ -329,12 +329,96 @@ let
inputs.${config.homeManagerBranch}.nixosModules.home-manager
../../../configs/nixos/${name}
# Mapping the declarative home-manager users (if it has one) into NixOS
# users.
(lib.mkIf (config.homeManagerUsers.users != { })
(
let
setupConfig = config;
hasHomeManagerUsers = config.homeManagerUsers.users != { };
inherit (config.homeManagerUsers) nixpkgsInstance;
isNixpkgs = state: hasHomeManagerUsers && nixpkgsInstance == state;
in
{ config, lib, pkgs, ... }: {
config = lib.mkMerge [
(lib.mkIf hasHomeManagerUsers {
users.users =
lib.mkMerge
(lib.mapAttrsToList
(name: hmUser: { ${name} = hmUser.userConfig; })
setupConfig.homeManagerUsers.users);
home-manager.users = lib.mkMerge
(lib.mapAttrsToList
(name: hmUser: {
${name} = { lib, ... }: {
imports =
partsConfig.setups.home-manager.configs.${name}.modules
++ hmUser.additionalModules;
};
})
setupConfig.homeManagerUsers.users);
})
(lib.mkIf (isNixpkgs "global") {
home-manager.useGlobalPkgs = lib.mkForce true;
# Disable all options that are going to be blocked once
# `home-manager.useGlobalPkgs` is used.
home-manager.users =
lib.mkMerge
(lib.mapAttrsToList
(name: _: {
${name} = {
nixpkgs.overlays = lib.mkForce null;
nixpkgs.config = lib.mkForce null;
};
})
setupConfig.homeManagerUsers.users);
# Then apply all of the user overlays into the nixpkgs instance
# of the NixOS system.
nixpkgs.overlays =
let
hmUsersOverlays =
lib.mapAttrsToList
(name: _:
partsConfig.setups.home-manager.configs.${name}.overlays)
setupConfig.homeManagerUsers.users;
overlays = lib.lists.flatten hmUsersOverlays;
in
# Most of the overlays are going to be imported from a
# variable anyways. This should massively reduce the step
# needed for nixpkgs to do its thing.
#
# Though, it becomes unpredictable due to the way how the
# overlay list is constructed. However, this is much more
# preferable than letting a massive list with duplicated
# overlays from different home-manager users to be applied.
lib.lists.unique overlays;
})
(lib.mkIf (isNixpkgs "separate") {
home-manager.useGlobalPkgs = lib.mkForce false;
home-manager.users =
lib.mkMerge
(lib.mapAttrsToList
(name: _: {
${name} = {
nixpkgs.overlays =
partsConfig.setups.home-manager.configs.${name}.overlays;
};
})
setupConfig.homeManagerUsers.users);
})
];
}))
# Setting up the typical configuration.
(
let
setupConfig = config;
hasHomeManagerUsers = config.homeManagerUsers.users != { };
inherit (config.homeManagerUsers) nixpkgsInstance;
isNixpkgs = state: hasHomeManagerUsers && nixpkgsInstance == state;
in
{ config, lib, ... }: {
config = lib.mkMerge [
@ -346,78 +430,6 @@ let
(lib.mkIf (setupConfig.domain != null) {
networking.domain = lib.mkDefault setupConfig.domain;
})
(lib.mkIf hasHomeManagerUsers {
users.users =
lib.mkMerge
(lib.mapAttrsToList
(name: hmUser: { ${name} = hmUser.userConfig; })
setupConfig.homeManagerUsers.users);
home-manager.users = lib.mkMerge
(lib.mapAttrsToList
(name: hmUser: {
${name} = { lib, ... }: {
imports =
partsConfig.setups.home-manager.configs.${name}.modules
++ hmUser.additionalModules;
};
})
setupConfig.homeManagerUsers.users);
})
(lib.mkIf (isNixpkgs "global") {
home-manager.useGlobalPkgs = lib.mkForce true;
# Disable all options that are going to be blocked once
# `home-manager.useGlobalPkgs` is used.
home-manager.users =
lib.mkMerge
(lib.mapAttrsToList
(name: _: {
${name} = {
nixpkgs.overlays = lib.mkForce null;
nixpkgs.config = lib.mkForce null;
};
})
setupConfig.homeManagerUsers.users);
# Then apply all of the user overlays into the nixpkgs instance
# of the NixOS system.
nixpkgs.overlays =
let
hmUsersOverlays =
lib.mapAttrsToList
(name: _:
partsConfig.setups.home-manager.configs.${name}.overlays)
setupConfig.homeManagerUsers.users;
overlays = lib.lists.flatten hmUsersOverlays;
in
# Most of the overlays are going to be imported from a
# variable anyways. This should massively reduce the step
# needed for nixpkgs to do its thing.
#
# Though, it becomes unpredictable due to the way how the
# overlay list is constructed. However, this is much more
# preferable than letting a massive list with duplicated
# overlays from different home-manager users to be applied.
lib.lists.unique overlays;
})
(lib.mkIf (isNixpkgs "separate") {
home-manager.useGlobalPkgs = lib.mkForce false;
home-manager.users =
lib.mkMerge
(lib.mapAttrsToList
(name: _: {
${name} = {
nixpkgs.overlays =
partsConfig.setups.home-manager.configs.${name}.overlays;
};
})
setupConfig.homeManagerUsers.users);
})
];
}
)