Revert "nixos/doc: convert "Contributing to this manual" to CommonMark"

This reverts commit 7501467903.

nixos/doc/manual/contributing-to-this-manual.chapter.md

@@ -1,13 +0,0 @@
-# Contributing to this manual {#chap-contributing}
-
-The DocBook and CommonMark sources of NixOS' manual are in the [nixos/doc/manual](https://github.com/NixOS/nixpkgs/tree/master/nixos/doc/manual) subdirectory of the [Nixpkgs](https://github.com/NixOS/nixpkgs) repository.
-
-You can quickly check your edits with the following:
-
-```ShellSession
-$ cd /path/to/nixpkgs
-$ ./nixos/doc/manual/md-to-db.sh
-$ nix-build nixos/release.nix -A manual.x86_64-linux
-```
-
-If the build succeeds, the manual will be in `./result/share/doc/nixos/index.html`.

nixos/doc/manual/contributing-to-this-manual.xml

@@ -0,0 +1,22 @@
+<chapter xmlns="http://docbook.org/ns/docbook"
+         xmlns:xlink="http://www.w3.org/1999/xlink"
+         xml:id="chap-contributing">
+ <title>Contributing to this manual</title>
+ <para>
+  The DocBook sources of NixOS' manual are in the <filename
+xlink:href="https://github.com/NixOS/nixpkgs/tree/master/nixos/doc/manual">
+nixos/doc/manual</filename> subdirectory of the <link
+xlink:href="https://github.com/NixOS/nixpkgs">Nixpkgs</link> repository.
+ </para>
+ <para>
+  You can quickly check your edits with the following:
+ </para>
+<screen>
+<prompt>$ </prompt>cd /path/to/nixpkgs
+<prompt>$ </prompt>nix-build nixos/release.nix -A manual.x86_64-linux
+</screen>
+ <para>
+  If the build succeeds, the manual will be in
+  <filename>./result/share/doc/nixos/index.html</filename>.
+ </para>
+</chapter>

nixos/doc/manual/from_md/contributing-to-this-manual.chapter.xml

@@ -1,22 +0,0 @@
-<chapter xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="chap-contributing">
-  <title>Contributing to this manual</title>
-  <para>
-    The DocBook and CommonMark sources of NixOS’ manual are in the
-    <link xlink:href="https://github.com/NixOS/nixpkgs/tree/master/nixos/doc/manual">nixos/doc/manual</link>
-    subdirectory of the
-    <link xlink:href="https://github.com/NixOS/nixpkgs">Nixpkgs</link>
-    repository.
-  </para>
-  <para>
-    You can quickly check your edits with the following:
-  </para>
-  <programlisting>
-$ cd /path/to/nixpkgs
-$ ./nixos/doc/manual/md-to-db.sh
-$ nix-build nixos/release.nix -A manual.x86_64-linux
-</programlisting>
-  <para>
-    If the build succeeds, the manual will be in
-    <literal>./result/share/doc/nixos/index.html</literal>.
-  </para>
-</chapter>

nixos/doc/manual/manual.xml

@@ -19,6 +19,6 @@
   <xi:include href="./generated/options-db.xml"
                 xpointer="configuration-variable-list" />
  </appendix>
- <xi:include href="./from_md/contributing-to-this-manual.chapter.xml" />
+ <xi:include href="contributing-to-this-manual.xml" />
  <xi:include href="release-notes/release-notes.xml" />
 </book>

nixos/doc/manual/md-to-db.sh

@@ -12,8 +12,8 @@ OUT="$DIR/from_md"
 mapfile -t MD_FILES < <(find . -type f -regex '.*\.md$')
 
 for mf in ${MD_FILES[*]}; do
-  if [ "${mf: -11}" == ".section.md" ]; then
   mkdir -p $(dirname "$OUT/$mf")
+  if [ "${mf: -11}" == ".section.md" ]; then
     pandoc "$mf" -t docbook \
       --extract-media=media \
       -f markdown+smart \
@@ -21,7 +21,6 @@ for mf in ${MD_FILES[*]}; do
   fi
 
   if [ "${mf: -11}" == ".chapter.md" ]; then
-    mkdir -p $(dirname "$OUT/$mf")
     pandoc "$mf" -t docbook \
       --top-level-division=chapter \
       --extract-media=media \