forked from Fediversity/Fediversity
113 lines
3.4 KiB
Nix
113 lines
3.4 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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templates = import ./templates.nix { inherit lib; };
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in
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{
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options.templates =
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let
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# arbitrarily nested attribute set where the leaves are of type `type`
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# NOTE: due to how `either` works, the first match is significant,
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# so if `type` happens to be an attrset, the typecheck will consider
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# `type`, not `attrsOf`
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recursiveAttrs = type: with types; attrsOf (either type (recursiveAttrs type));
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in
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mkOption {
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description = ''
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Collection of named functions to convert document contents to a string representation
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Each template function takes the complete site `config` and the document's data structure.
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'';
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type = recursiveAttrs (with types; functionTo (functionTo str));
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};
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config.templates.html =
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let
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commonmark = name: markdown: pkgs.runCommand "${name}.html"
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{
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buildInputs = [ pkgs.cmark ];
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} ''
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cmark ${builtins.toFile "${name}.md" markdown} > $out
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'';
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in
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{
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page = lib.mkDefault (config: page: templates.html {
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head = ''
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<title>${page.title}</title>
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<meta name="description" content="${page.description}" />
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<link rel="canonical" href="${page.outPath}" />
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'';
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body = ''
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${templates.nav { menu = { menu = config.menus.main; }; }}
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${builtins.readFile (commonmark page.name page.body)}
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'';
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});
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article = lib.mkDefault (config: page: templates.html {
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head = ''
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<title>${page.title}</title>
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<meta name="description" content="${page.description}" />
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<meta name="author" content="${with lib; if isList page.author then join ", " page.author else page.author}" />
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'';
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body = ''
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${templates.nav { menu = { menu = config.menus.main; }; }}
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${builtins.readFile (commonmark page.name page.body)}
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'';
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});
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};
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options.files = mkOption {
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description = ''
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Files that make up the site, mapping from output path to contents
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By default, all elements in `option`{pages} are converted to files using their template or the default template.
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Add more files to the output by assigning to this attribute set.
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'';
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type = with types; attrsOf path;
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};
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config.files =
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# TODO: create static redirects from `tail page.locations`
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let
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pages = lib.attrValues config.pages;
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collections = with lib; concatMap (collection: collection.entry) (attrValues config.collections);
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collections' = with lib; map
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(
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entry: recursiveUpdate entry {
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locations = map (l: "${entry.collection.name}/${l}") entry.locations;
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}
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)
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collections;
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in
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with lib; foldl
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(acc: elem: acc // {
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"${head elem.locations}" = builtins.toFile "${elem.name}.html" elem.outputs.html;
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})
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{ }
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(pages ++ collections');
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options.build = mkOption {
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description = ''
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The final output of the web site
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'';
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type = types.package;
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default =
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let
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script = ''
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mkdir $out
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'' + lib.join "\n" copy;
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copy = lib.mapAttrsToList
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(
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path: file: ''
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mkdir -p $out/$(dirname ${path})
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cp -r ${file} $out/${path}
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''
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)
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config.files;
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in
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pkgs.runCommand "source" { } script;
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};
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}
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