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docs: move pkgs overlays to their own file
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parent
27a0dd435d
commit
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3 changed files with 58 additions and 42 deletions
44
docs/pkgs.nix
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44
docs/pkgs.nix
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@ -0,0 +1,44 @@
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{
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system,
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nixpkgs,
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}:
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let
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# FIXME:
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# Building the docs evaluates many package-option defaults, some of which are unfree.
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# This usually happens when we include the package option value in another option's default without
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# using a literalExpression defaultText.
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config = {
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allowUnfree = true;
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};
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# Extend nixpkg's lib, so that we can handle recursive leaf types such as `either`
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libOverlay = final: prev: {
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types = prev.types // {
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either =
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t1: t2:
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prev.types.either t1 t2
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// {
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getSubOptions = prefix: t1.getSubOptions prefix // t2.getSubOptions prefix;
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};
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};
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};
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# Extended nixpkgs instance, with patches to nixos-render-docs
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overlay = final: prev: {
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lib = prev.lib.extend libOverlay;
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nixos-render-docs = prev.nixos-render-docs.overrideAttrs (old: {
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patches = old.patches or [ ] ++ [
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# Adds support for GFM-style admonitions in rendered commonmark
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./0001-Output-GFM-admonition.patch
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# TODO:add support for _parsing_ GFM admonitions too
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# https://github.com/nix-community/nixvim/issues/2217
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];
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});
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};
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in
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import nixpkgs {
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inherit config system;
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overlays = [ overlay ];
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}
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