0c601b12bf
since we want to move away from docbook and having docbook manpages around is going to block further progress we have to translate the current nixos manpages from docbook it *something* else. mdoc seems the most appropriate choice since markdown can't represent all the things manpages can differentiate with even more extensions. if we ever need html manpages we can render them using troff, like many of the online manpage viewers, or rewrite them again. since we haven't had html manpages for any of these in many years that seems unlikely to happen. unlike most of the recent markdown conversions this comes with a lot of minor rendering changes, mostly in spacing. docbook-xslt creates manual pages in a very different dialect than mdoc (which is used here).
279 lines
8.9 KiB
Nix
279 lines
8.9 KiB
Nix
{ pkgs
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, options
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, config
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, version
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, revision
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, extraSources ? []
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, baseOptionsJSON ? null
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, warningsAreErrors ? true
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, allowDocBook ? true
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, prefix ? ../../..
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}:
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with pkgs;
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let
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inherit (lib) hasPrefix removePrefix;
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lib = pkgs.lib;
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docbook_xsl_ns = pkgs.docbook-xsl-ns.override {
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withManOptDedupPatch = true;
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};
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# We need to strip references to /nix/store/* from options,
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# including any `extraSources` if some modules came from elsewhere,
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# or else the build will fail.
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#
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# E.g. if some `options` came from modules in ${pkgs.customModules}/nix,
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# you'd need to include `extraSources = [ pkgs.customModules ]`
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prefixesToStrip = map (p: "${toString p}/") ([ prefix ] ++ extraSources);
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stripAnyPrefixes = lib.flip (lib.foldr lib.removePrefix) prefixesToStrip;
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optionsDoc = buildPackages.nixosOptionsDoc {
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inherit options revision baseOptionsJSON warningsAreErrors allowDocBook;
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transformOptions = opt: opt // {
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# Clean up declaration sites to not refer to the NixOS source tree.
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declarations = map stripAnyPrefixes opt.declarations;
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};
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};
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nixos-lib = import ../../lib { };
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testOptionsDoc = let
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eval = nixos-lib.evalTest {
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# Avoid evaluating a NixOS config prototype.
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config.node.type = lib.types.deferredModule;
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options._module.args = lib.mkOption { internal = true; };
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};
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in buildPackages.nixosOptionsDoc {
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inherit (eval) options;
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inherit (revision);
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transformOptions = opt: opt // {
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# Clean up declaration sites to not refer to the NixOS source tree.
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declarations =
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map
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(decl:
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if hasPrefix (toString ../../..) (toString decl)
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then
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let subpath = removePrefix "/" (removePrefix (toString ../../..) (toString decl));
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in { url = "https://github.com/NixOS/nixpkgs/blob/master/${subpath}"; name = subpath; }
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else decl)
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opt.declarations;
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};
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documentType = "none";
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variablelistId = "test-options-list";
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optionIdPrefix = "test-opt-";
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};
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sources = lib.sourceFilesBySuffices ./. [".xml"];
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modulesDoc = runCommand "modules.xml" {
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nativeBuildInputs = [ pkgs.nixos-render-docs ];
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} ''
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nixos-render-docs manual docbook \
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--manpage-urls ${pkgs.path + "/doc/manpage-urls.json"} \
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"$out" \
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--section \
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--section-id modules \
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--chapters ${lib.concatMapStrings (p: "${p.value} ") config.meta.doc}
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'';
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generatedSources = runCommand "generated-docbook" {} ''
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mkdir $out
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ln -s ${modulesDoc} $out/modules.xml
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ln -s ${optionsDoc.optionsDocBook} $out/options-db.xml
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ln -s ${testOptionsDoc.optionsDocBook} $out/test-options-db.xml
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printf "%s" "${version}" > $out/version
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'';
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copySources =
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''
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cp -prd $sources/* . # */
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ln -s ${generatedSources} ./generated
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chmod -R u+w .
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'';
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toc = builtins.toFile "toc.xml"
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''
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<toc role="chunk-toc">
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<d:tocentry xmlns:d="http://docbook.org/ns/docbook" linkend="book-nixos-manual"><?dbhtml filename="index.html"?>
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<d:tocentry linkend="ch-options"><?dbhtml filename="options.html"?></d:tocentry>
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<d:tocentry linkend="ch-release-notes"><?dbhtml filename="release-notes.html"?></d:tocentry>
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</d:tocentry>
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</toc>
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'';
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manualXsltprocOptions = toString [
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"--param chapter.autolabel 0"
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"--param part.autolabel 0"
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"--param preface.autolabel 0"
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"--param reference.autolabel 0"
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"--param section.autolabel 0"
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"--stringparam html.stylesheet 'style.css overrides.css highlightjs/mono-blue.css'"
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"--stringparam html.script './highlightjs/highlight.pack.js ./highlightjs/loader.js'"
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"--param xref.with.number.and.title 0"
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"--param toc.section.depth 0"
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"--param generate.consistent.ids 1"
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"--stringparam admon.style ''"
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"--stringparam callout.graphics.extension .svg"
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"--stringparam current.docid manual"
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"--param chunk.section.depth 0"
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"--param chunk.first.sections 1"
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"--param use.id.as.filename 1"
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"--stringparam chunk.toc ${toc}"
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];
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manual-combined = runCommand "nixos-manual-combined"
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{ inherit sources;
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nativeBuildInputs = [ buildPackages.libxml2.bin buildPackages.libxslt.bin ];
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meta.description = "The NixOS manual as plain docbook XML";
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}
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''
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${copySources}
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xmllint --xinclude --output ./manual-combined.xml ./manual.xml
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xmllint --xinclude --noxincludenode \
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--output ./man-pages-combined.xml ./man-pages.xml
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# outputs the context of an xmllint error output
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# LEN lines around the failing line are printed
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function context {
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# length of context
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local LEN=6
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# lines to print before error line
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local BEFORE=4
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# xmllint output lines are:
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# file.xml:1234: there was an error on line 1234
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while IFS=':' read -r file line rest; do
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echo
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if [[ -n "$rest" ]]; then
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echo "$file:$line:$rest"
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local FROM=$(($line>$BEFORE ? $line - $BEFORE : 1))
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# number lines & filter context
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nl --body-numbering=a "$file" | sed -n "$FROM,+$LEN p"
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else
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if [[ -n "$line" ]]; then
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echo "$file:$line"
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else
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echo "$file"
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fi
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fi
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done
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}
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function lintrng {
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xmllint --debug --noout --nonet \
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--relaxng ${docbook5}/xml/rng/docbook/docbook.rng \
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"$1" \
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2>&1 | context 1>&2
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# ^ redirect assumes xmllint doesn’t print to stdout
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}
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mkdir $out
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cp manual-combined.xml $out/
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cp man-pages-combined.xml $out/
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lintrng $out/manual-combined.xml
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lintrng $out/man-pages-combined.xml
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'';
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in rec {
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inherit generatedSources;
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inherit (optionsDoc) optionsJSON optionsNix optionsDocBook optionsUsedDocbook;
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# Generate the NixOS manual.
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manualHTML = runCommand "nixos-manual-html"
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{ inherit sources;
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nativeBuildInputs = [ buildPackages.libxml2.bin buildPackages.libxslt.bin ];
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meta.description = "The NixOS manual in HTML format";
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allowedReferences = ["out"];
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}
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''
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# Generate the HTML manual.
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dst=$out/share/doc/nixos
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mkdir -p $dst
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xsltproc \
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${manualXsltprocOptions} \
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--stringparam id.warnings "1" \
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--nonet --output $dst/ \
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${docbook_xsl_ns}/xml/xsl/docbook/xhtml/chunktoc.xsl \
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${manual-combined}/manual-combined.xml \
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|& tee xsltproc.out
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grep "^ID recommended on" xsltproc.out &>/dev/null && echo "error: some IDs are missing" && false
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rm xsltproc.out
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mkdir -p $dst/images/callouts
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cp ${docbook_xsl_ns}/xml/xsl/docbook/images/callouts/*.svg $dst/images/callouts/
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cp ${../../../doc/style.css} $dst/style.css
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cp ${../../../doc/overrides.css} $dst/overrides.css
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cp -r ${pkgs.documentation-highlighter} $dst/highlightjs
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mkdir -p $out/nix-support
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echo "nix-build out $out" >> $out/nix-support/hydra-build-products
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echo "doc manual $dst" >> $out/nix-support/hydra-build-products
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''; # */
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# Alias for backward compatibility. TODO(@oxij): remove eventually.
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manual = manualHTML;
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# Index page of the NixOS manual.
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manualHTMLIndex = "${manualHTML}/share/doc/nixos/index.html";
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manualEpub = runCommand "nixos-manual-epub"
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{ inherit sources;
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nativeBuildInputs = [ buildPackages.libxml2.bin buildPackages.libxslt.bin buildPackages.zip ];
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}
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''
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# Generate the epub manual.
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dst=$out/share/doc/nixos
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xsltproc \
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${manualXsltprocOptions} \
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--nonet --xinclude --output $dst/epub/ \
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${docbook_xsl_ns}/xml/xsl/docbook/epub/docbook.xsl \
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${manual-combined}/manual-combined.xml
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mkdir -p $dst/epub/OEBPS/images/callouts
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cp -r ${docbook_xsl_ns}/xml/xsl/docbook/images/callouts/*.svg $dst/epub/OEBPS/images/callouts # */
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echo "application/epub+zip" > mimetype
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manual="$dst/nixos-manual.epub"
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zip -0Xq "$manual" mimetype
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cd $dst/epub && zip -Xr9D "$manual" *
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rm -rf $dst/epub
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mkdir -p $out/nix-support
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echo "doc-epub manual $manual" >> $out/nix-support/hydra-build-products
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'';
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# Generate the NixOS manpages.
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manpages = runCommand "nixos-manpages"
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{ inherit sources;
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nativeBuildInputs = [
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buildPackages.libxml2.bin
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buildPackages.libxslt.bin
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buildPackages.installShellFiles
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];
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allowedReferences = ["out"];
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}
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''
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# Generate manpages.
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mkdir -p $out/share/man/man8
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installManPage ${./manpages}/*
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xsltproc --nonet \
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--maxdepth 6000 \
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--param man.output.in.separate.dir 1 \
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--param man.output.base.dir "'$out/share/man/'" \
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--param man.endnotes.are.numbered 0 \
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--param man.break.after.slash 1 \
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${docbook_xsl_ns}/xml/xsl/docbook/manpages/docbook.xsl \
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${manual-combined}/man-pages-combined.xml
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'';
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}
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