42 lines
1.4 KiB
Nix
42 lines
1.4 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;
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user-templates-root = snowfall-lib.fs.get-snowfall-file "templates";
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in
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{
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template = {
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# Create flake templates.
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# Type: Attrs -> Attrs
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# Usage: create-templates { src = ./my-templates; overrides = { inherit another-template; }; alias = { default = "another-template"; }; }
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# result: { another-template = ...; my-template = ...; default = ...; }
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create-templates =
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{ src ? user-templates-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-templates = snowfall-lib.fs.get-directories src;
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create-template-metadata = template: {
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name = builtins.unsafeDiscardStringContext (baseNameOf template);
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path = template;
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};
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templates-metadata = builtins.map create-template-metadata user-templates;
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merge-templates = templates: metadata:
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templates // {
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${metadata.name} = (overrides.${metadata.name} or { }) // {
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inherit (metadata) path;
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};
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};
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templates-without-aliases = foldl merge-templates { } templates-metadata;
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aliased-templates = mapAttrs (name: value: templates-without-aliases.${value}) alias;
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templates = templates-without-aliases // aliased-templates // overrides;
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in
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templates;
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};
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}
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