77 lines
2.7 KiB
Nix
77 lines
2.7 KiB
Nix
{ core-inputs
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, user-inputs
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, snowfall-lib
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}:
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let
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inherit (builtins) baseNameOf;
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inherit (core-inputs.nixpkgs.lib) assertMsg foldl mapAttrs hasPrefix;
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user-modules-root = snowfall-lib.fs.get-snowfall-file "modules";
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in
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{
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module = {
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# Create flake output modules.
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# Type: Attrs -> Attrs
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# Usage: create-modules { src = ./my-modules; overrides = { inherit another-module; }; alias = { default = "another-module" }; }
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# result: { another-module = ...; my-module = ...; default = ...; }
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create-modules =
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{ src ? user-modules-root
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, overrides ? { }
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, alias ? { }
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}:
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let
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user-modules = snowfall-lib.fs.get-default-nix-files-recursive src;
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create-module-metadata = module: {
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name =
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let
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path-name = builtins.replaceStrings [ src "/default.nix" ] [ "" "" ] (builtins.unsafeDiscardStringContext module);
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in
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if hasPrefix "/" path-name then
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builtins.substring 1 ((builtins.stringLength path-name) - 1) path-name
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else
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path-name;
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path = module;
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};
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modules-metadata = builtins.map create-module-metadata user-modules;
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merge-modules = modules: metadata:
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modules // {
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${metadata.name} = args:
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let
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system = args.system or args.pkgs.system;
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target = args.target or system;
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format =
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let
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virtual-system-type = snowfall-lib.system.get-virtual-system-type target;
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in
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if virtual-system-type != "" then
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virtual-system-type
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else if snowfall-lib.system.is-darwin target then
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"darwin"
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else
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"linux";
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# Replicates the specialArgs from Snowfall Lib's system builder.
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modified-args = args // {
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inherit system target format;
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virtual = args.virtual or (snowfall-lib.system.get-virtual-system-type target != "");
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systems = args.systems or { };
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lib = snowfall-lib.internal.system-lib;
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pkgs = user-inputs.self.pkgs.${system}.nixpkgs;
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inputs = snowfall-lib.flake.without-src user-inputs;
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};
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user-module = import metadata.path modified-args;
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in
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user-module // { _file = metadata.path; };
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};
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modules-without-aliases = foldl merge-modules { } modules-metadata;
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aliased-modules = mapAttrs (name: value: modules-without-aliases.${value}) alias;
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modules = modules-without-aliases // aliased-modules // overrides;
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in
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modules;
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};
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}
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