mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-30 17:43:42 +00:00
81cf173256
options processing is pretty slow right now, mostly because the markdown-it-py parser is pure python (and with performance pessimizations at that). options parsing *is* embarassingly parallel though, so we can just fork out all the work to worker processes and collect the results. multiprocessing probably has a greater benefit on linux than on darwin since the worker spawning method darwin uses is less efficient than fork() on linux. this hasn't been tested on darwin, only on linux, but if anything darwin will be faster with its preferred method.
296 lines
9.6 KiB
Nix
296 lines
9.6 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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manpageUrls = pkgs.path + "/doc/manpage-urls.json";
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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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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 ${toc}"
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];
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linterFunctions = ''
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# outputs the context of an xmllint error output
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# LEN lines around the failing line are printed
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function context {
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# length of context
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local LEN=6
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# lines to print before error line
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local BEFORE=4
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# xmllint output lines are:
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# file.xml:1234: there was an error on line 1234
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while IFS=':' read -r file line rest; do
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echo
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if [[ -n "$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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'';
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manual-combined = runCommand "nixos-manual-combined"
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{ inputs = lib.sourceFilesBySuffices ./. [ ".xml" ".md" ];
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nativeBuildInputs = [ pkgs.nixos-render-docs pkgs.libxml2.bin pkgs.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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cp -r --no-preserve=all $inputs/* .
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substituteInPlace ./manual.md \
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--replace '@NIXOS_VERSION@' "${version}"
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substituteInPlace ./configuration/configuration.md \
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--replace \
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'@MODULE_CHAPTERS@' \
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${lib.escapeShellArg (lib.concatMapStringsSep "\n" (p: "${p.value}") config.meta.doc)}
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substituteInPlace ./nixos-options.md \
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--replace \
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'@NIXOS_OPTIONS_JSON@' \
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${optionsDoc.optionsJSON}/share/doc/nixos/options.json
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substituteInPlace ./development/writing-nixos-tests.section.md \
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--replace \
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'@NIXOS_TEST_OPTIONS_JSON@' \
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${testOptionsDoc.optionsJSON}/share/doc/nixos/options.json
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nixos-render-docs -j $NIX_BUILD_CORES manual docbook \
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--manpage-urls ${manpageUrls} \
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--revision ${lib.escapeShellArg revision} \
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./manual.md \
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./manual-combined.xml
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${linterFunctions}
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mkdir $out
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cp manual-combined.xml $out/
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lintrng $out/manual-combined.xml
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'';
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manpages-combined = runCommand "nixos-manpages-combined.xml"
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{ nativeBuildInputs = [ buildPackages.libxml2.bin buildPackages.libxslt.bin ];
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meta.description = "The NixOS manpages as plain docbook XML";
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}
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''
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mkdir generated
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cp -prd ${./man-pages.xml} man-pages.xml
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ln -s ${optionsDoc.optionsDocBook} generated/options-db.xml
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xmllint --xinclude --noxincludenode --output $out ./man-pages.xml
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${linterFunctions}
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lintrng $out
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'';
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in rec {
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inherit (optionsDoc) optionsJSON optionsNix optionsDocBook optionsUsedDocbook;
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# Generate the NixOS manual.
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manualHTML = runCommand "nixos-manual-html"
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{ nativeBuildInputs = [ buildPackages.libxml2.bin buildPackages.libxslt.bin ];
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meta.description = "The NixOS manual in HTML format";
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allowedReferences = ["out"];
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}
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''
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# Generate the HTML manual.
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dst=$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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{ 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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{ nativeBuildInputs = [
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buildPackages.installShellFiles
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] ++ lib.optionals allowDocBook [
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buildPackages.libxml2.bin
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buildPackages.libxslt.bin
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] ++ lib.optionals (! allowDocBook) [
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buildPackages.nixos-render-docs
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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 ${./manpages}/*
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${if allowDocBook
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then ''
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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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${manpages-combined}
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''
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else ''
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mkdir -p $out/share/man/man5
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nixos-render-docs -j $NIX_BUILD_CORES options manpage \
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--revision ${lib.escapeShellArg revision} \
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${optionsJSON}/share/doc/nixos/options.json \
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$out/share/man/man5/configuration.nix.5
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''}
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'';
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}
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