forked from Fediversity/fediversity.eu
82 lines
2.7 KiB
Nix
82 lines
2.7 KiB
Nix
{ config, options, lib, pkgs, ... }:
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let
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inherit (lib)
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mkOption
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types
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;
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cfg = config;
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in
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{
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imports = lib.nixFiles ./.;
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options.content-types = mkOption {
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description = "Content types";
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type = with types; attrsOf deferredModule;
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};
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config.content-types.document = { name, config, options, link, ... }: {
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config._module.args.link = config.link;
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options = {
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name = mkOption {
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description = "Symbolic name, used as a human-readable identifier";
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type = types.str;
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default = name;
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};
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locations = mkOption {
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description = ''
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List of historic output locations for the resulting file
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Elements are relative paths to output files, without suffix.
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The suffix will be added depending on output file type.
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The first element is the canonical location.
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All other elements are used to create redirects to the canonical location.
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The default entry is the symbolic name of the document.
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When changing the symbolic name, append the old one to your custom list and use `lib.mkForce` to make sure the default element will be overridden.
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'';
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type = with types; nonEmptyListOf str;
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apply = config.process-locations;
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example = [ "about/overview" "index" ];
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default = [ config.name ];
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};
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process-locations = mkOption {
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description = "Function to post-process the output locations of contained document";
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type = types.functionTo options.locations.type;
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default = lib.id;
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};
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link = mkOption {
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description = "Helper function for transparent linking to other pages";
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type = with types; functionTo attrs;
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# TODO: we may want links to other representations,
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# and currently the mapping of output types to output file
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# names is soft.
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default = with lib; target:
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let
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path = relativePath (head config.locations) (head target.locations);
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links = mapAttrs
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(type: output:
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path + optionalString (type != "") ".${type}"
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# ^^^^^^^^^^^^
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# convention for raw files
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)
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target.outputs;
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in
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if length (attrValues links) == 0
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then throw "no output to link to for '${target.name}'"
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else if length (attrValues links) == 1
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then links // {
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__toString = _: head (attrValues links);
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}
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else links;
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};
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outputs = mkOption {
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description = ''
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Representations of the document in different formats
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'';
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type = with types; attrsOf (either str attrs);
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};
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};
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};
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}
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