nixpkgs/nixos/doc/manual/default.nix
aszlig 6fec28e043
nixos-manual: Further simplify stripAnyPrefixes
First of all this fixes an evaluation error I introduced in ae466ba,
which wasn't triggered by any of my own tests against the change because
there are usually no NixOS options that are declared outside of the
<nixpkgs> tree. I renamed the attribute name from "fn" to "fileName"
first and later to "fullPath" but forgot one still occuring "filename".

Thanks to @vcunat for noticing this.

Another thing that he pointed out was that the "stripPrefix" function
can be factored away entirely, because it's very similar to
"removePrefix" in <nixpkgs/lib>.

Unfortunately we can't use "removePrefix" as is, because we need to
account for the final shlash.

So instead of removing it twice and/or retaining "stripPrefix", let's
append a shlash on every "prefixesToStrip" and we can use "removePrefix"
as is.

Tested with:

taalo-build nixos/release.nix -A tests.installer.simple.x86_64-linux

And:

w3m -dump "$(
  nix-build nixos/release.nix -A manual.x86_64-linux
)/share/doc/nixos/options.html"

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Cc: @vcunat
2016-01-29 20:14:11 +01:00

198 lines
6.3 KiB
Nix

{ pkgs, options, version, revision, extraSources ? [] }:
with pkgs;
with pkgs.lib;
let
# Remove invisible and internal options.
optionsList = filter (opt: opt.visible && !opt.internal) (optionAttrSetToDocList options);
# Replace functions by the string <function>
substFunction = x:
if builtins.isAttrs x then mapAttrs (name: substFunction) x
else if builtins.isList x then map substFunction x
else if builtins.isFunction x then "<function>"
else x;
# Clean up declaration sites to not refer to the NixOS source tree.
optionsList' = flip map optionsList (opt: opt // {
declarations = map stripAnyPrefixes opt.declarations;
}
// optionalAttrs (opt ? example) { example = substFunction opt.example; }
// optionalAttrs (opt ? default) { default = substFunction opt.default; }
// optionalAttrs (opt ? type) { type = substFunction opt.type; });
# We need to strip references to /nix/store/* from options,
# including any `extraSources` if some modules came from elsewhere,
# or else the build will fail.
#
# E.g. if some `options` came from modules in ${pkgs.customModules}/nix,
# you'd need to include `extraSources = [ pkgs.customModules ]`
prefixesToStrip = map (p: "${toString p}/") ([ ../../.. ] ++ extraSources);
stripAnyPrefixes = flip (fold removePrefix) prefixesToStrip;
# Convert the list of options into an XML file.
optionsXML = builtins.toFile "options.xml" (builtins.toXML optionsList');
optionsDocBook = runCommand "options-db.xml" {} ''
optionsXML=${optionsXML}
if grep /nixpkgs/nixos/modules $optionsXML; then
echo "The manual appears to depend on the location of Nixpkgs, which is bad"
echo "since this prevents sharing via the NixOS channel. This is typically"
echo "caused by an option default that refers to a relative path (see above"
echo "for hints about the offending path)."
exit 1
fi
${libxslt}/bin/xsltproc \
--stringparam revision '${revision}' \
-o $out ${./options-to-docbook.xsl} $optionsXML
'';
sources = sourceFilesBySuffices ./. [".xml"];
copySources =
''
cp -prd $sources/* . # */
chmod -R u+w .
cp ${../../modules/services/databases/postgresql.xml} configuration/postgresql.xml
cp ${../../modules/security/acme.xml} configuration/acme.xml
cp ${../../modules/misc/nixos.xml} configuration/nixos.xml
ln -s ${optionsDocBook} options-db.xml
echo "${version}" > version
'';
toc = builtins.toFile "toc.xml"
''
<toc role="chunk-toc">
<d:tocentry xmlns:d="http://docbook.org/ns/docbook" linkend="book-nixos-manual"><?dbhtml filename="index.html"?>
<d:tocentry linkend="ch-options"><?dbhtml filename="options.html"?></d:tocentry>
<d:tocentry linkend="ch-release-notes"><?dbhtml filename="release-notes.html"?></d:tocentry>
</d:tocentry>
</toc>
'';
in rec {
# The NixOS options in JSON format.
optionsJSON = stdenv.mkDerivation {
name = "options-json";
buildCommand = ''
# Export list of options in different format.
dst=$out/share/doc/nixos
mkdir -p $dst
cp ${builtins.toFile "options.json" (builtins.unsafeDiscardStringContext (builtins.toJSON
(listToAttrs (map (o: { name = o.name; value = removeAttrs o ["name" "visible" "internal"]; }) optionsList'))))
} $dst/options.json
mkdir -p $out/nix-support
echo "file json $dst/options.json" >> $out/nix-support/hydra-build-products
''; # */
meta.description = "List of NixOS options in JSON format";
};
# Generate the NixOS manual.
manual = stdenv.mkDerivation {
name = "nixos-manual";
inherit sources;
buildInputs = [ libxml2 libxslt ];
buildCommand = ''
${copySources}
# Check the validity of the manual sources.
xmllint --noout --nonet --xinclude --noxincludenode \
--relaxng ${docbook5}/xml/rng/docbook/docbook.rng \
manual.xml
# Generate the HTML manual.
dst=$out/share/doc/nixos
mkdir -p $dst
xsltproc \
--param section.autolabel 1 \
--param section.label.includes.component.label 1 \
--stringparam html.stylesheet style.css \
--param xref.with.number.and.title 1 \
--param toc.section.depth 3 \
--stringparam admon.style "" \
--stringparam callout.graphics.extension .gif \
--param chunk.section.depth 0 \
--param chunk.first.sections 1 \
--param use.id.as.filename 1 \
--stringparam generate.toc "book toc appendix toc" \
--stringparam chunk.toc ${toc} \
--nonet --xinclude --output $dst/ \
${docbook5_xsl}/xml/xsl/docbook/xhtml/chunktoc.xsl ./manual.xml
mkdir -p $dst/images/callouts
cp ${docbook5_xsl}/xml/xsl/docbook/images/callouts/*.gif $dst/images/callouts/
cp ${./style.css} $dst/style.css
mkdir -p $out/nix-support
echo "nix-build out $out" >> $out/nix-support/hydra-build-products
echo "doc manual $dst" >> $out/nix-support/hydra-build-products
''; # */
meta.description = "The NixOS manual in HTML format";
allowedReferences = ["out"];
};
manualPDF = stdenv.mkDerivation {
name = "nixos-manual-pdf";
inherit sources;
buildInputs = [ libxml2 libxslt dblatex dblatex.tex ];
buildCommand = ''
${copySources}
dst=$out/share/doc/nixos
mkdir -p $dst
xmllint --xinclude manual.xml | dblatex -o $dst/manual.pdf - \
-P doc.collab.show=0 \
-P latex.output.revhistory=0
mkdir -p $out/nix-support
echo "doc-pdf manual $dst/manual.pdf" >> $out/nix-support/hydra-build-products
'';
};
# Generate the NixOS manpages.
manpages = stdenv.mkDerivation {
name = "nixos-manpages";
inherit sources;
buildInputs = [ libxml2 libxslt ];
buildCommand = ''
${copySources}
# Check the validity of the manual sources.
xmllint --noout --nonet --xinclude --noxincludenode \
--relaxng ${docbook5}/xml/rng/docbook/docbook.rng \
./man-pages.xml
# Generate manpages.
mkdir -p $out/share/man
xsltproc --nonet --xinclude \
--param man.output.in.separate.dir 1 \
--param man.output.base.dir "'$out/share/man/'" \
--param man.endnotes.are.numbered 0 \
${docbook5_xsl}/xml/xsl/docbook/manpages/docbook.xsl \
./man-pages.xml
'';
allowedReferences = ["out"];
};
}