Nixpkgs manual: Add a Nix expression to build

doc/Makefile

@@ -1,41 +0,0 @@
-# You may need to override this.
-docbookxsl = $(HOME)/.nix-profile/xml/xsl/docbook
-dblatex = dblatex
-
-XMLLINT = xmllint --catalogs
-XSLTPROC = xsltproc --catalogs \
- --param section.autolabel 1 \
- --param section.label.includes.component.label 1 \
- --param html.stylesheet \'style.css\' \
- --param xref.with.number.and.title 1 \
- --param toc.section.depth 3 \
- --param admon.style \'\' \
- --param callout.graphics.extension \'.gif\'
-
-NEWS_OPTS = \
- --stringparam generate.toc "article nop" \
- --stringparam section.autolabel.max.depth 0 \
- --stringparam header.rule 0
-
-all: NEWS.html NEWS.txt manual.html manual.pdf
-
-NEWS.html: release-notes.xml
-	$(XSLTPROC) --nonet --xinclude --output $@ $(NEWS_OPTS) \
-	  $(docbookxsl)/xhtml/docbook.xsl release-notes.xml
-
-NEWS.txt: release-notes.xml
-	$(XSLTPROC) --nonet --xinclude quote-literals.xsl release-notes.xml | \
-	  $(XSLTPROC) --nonet --output $@.tmp.html $(NEWS_OPTS) \
-	  $(docbookxsl)/xhtml/docbook.xsl -
-	LANG=en_US w3m -dump $@.tmp.html > $@
-	rm $@.tmp.html
-
-manual.html: *.xml
-	$(XSLTPROC) --nonet --xinclude --output manual.html \
-	  $(docbookxsl)/xhtml/docbook.xsl manual.xml
-
-manual.pdf: *.xml
-	$(dblatex) \
-	  -P doc.collab.show=0 \
-	  -P latex.output.revhistory=0 \
-	  manual.xml

doc/default.nix

@@ -0,0 +1,42 @@
+with import ./.. { };
+with lib;
+
+stdenv.mkDerivation {
+  name = "nixpkgs-manual";
+
+  sources = sourceFilesBySuffices ./. [".xml"];
+
+  buildInputs = [ libxml2 libxslt ];
+
+  xsltFlags = ''
+    --param section.autolabel 1
+    --param section.label.includes.component.label 1
+    --param html.stylesheet 'style.css'
+    --param xref.with.number.and.title 1
+    --param toc.section.depth 3
+    --param admon.style '''
+    --param callout.graphics.extension '.gif'
+  '';
+
+  buildCommand = ''
+    ln -s $sources/*.xml . # */
+
+    echo ${nixpkgsVersion} > .version
+
+    xmllint --noout --nonet --xinclude --noxincludenode \
+      --relaxng ${docbook5}/xml/rng/docbook/docbook.rng \
+      manual.xml
+
+    dst=$out/share/doc/nixpkgs
+    mkdir -p $dst
+    xsltproc $xsltFlags --nonet --xinclude \
+      --output $dst/manual.html \
+      ${docbook5_xsl}/xml/xsl/docbook/xhtml/docbook.xsl \
+      ./manual.xml
+
+    cp ${./style.css} $dst/style.css
+
+    mkdir -p $out/nix-support
+    echo "doc manual $dst manual.html" >> $out/nix-support/hydra-build-products
+  '';
+}

doc/manual.xml

@@ -3,10 +3,9 @@
 
   <info>
 
-    <title>Nixpkgs Manual</title>
+    <title>Nixpkgs Contributors Guide</title>
 
-    <subtitle>Draft (Version <xi:include href="../.version"
-    parse="text" />)</subtitle>
+    <subtitle>Version <xi:include href=".version" parse="text" /></subtitle>
 
   </info>