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feat: aliases and custom snowfall root

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Jake Hamilton 2023-01-09 05:22:28 -08:00
parent d8a08681a9
commit cbe1b6e0fb
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9 changed files with 126 additions and 85 deletions
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22
lib/module/default.nix
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@ -5,19 +5,20 @@
let
inherit (builtins) baseNameOf;
inherit (core-inputs.nixpkgs.lib) assertMsg foldl;
inherit (core-inputs.nixpkgs.lib) assertMsg foldl mapAttrs;
user-modules-root = snowfall-lib.fs.get-file "modules";
user-modules-root = snowfall-lib.fs.get-snowfall-file "modules";
in
{
module = {
# Create flake output modules.
# Type: Attrs -> Attrs
# Usage: create-modules { src = ./my-modules; overrides = { inherit another-module; default = "my-module"; }; }
# Usage: create-modules { src = ./my-modules; overrides = { inherit another-module; }; alias = { default = "another-module" }; }
# result: { another-module = ...; my-module = ...; default = ...; }
create-modules =
{ src ? user-modules-root
, overrides ? { }
, alias ? { }
}:
let
user-modules = snowfall-lib.fs.get-default-nix-files-recursive src;
@ -30,18 +31,9 @@ in
modules // {
${metadata.name} = import metadata.path;
};
modules-without-default = foldl merge-modules { } modules-metadata;
default-module =
if overrides.default or null == null then
{ }
else if builtins.isAttrs overrides.default then
{ default = overrides.default; }
else if modules-without-default.${overrides.default} or null != null then
{ default = modules-without-default.${overrides.default}; }
else
{ };
overrides-without-default = builtins.removeAttrs overrides [ "default" ];
modules = modules-without-default // default-module // overrides-without-default;
modules-without-aliases = foldl merge-modules { } modules-metadata;
aliased-modules = mapAttrs (name: value: modules-without-aliases.${value}) alias;
modules = modules-without-aliases // aliased-modules // overrides;
in
modules;
};