forked from mirrors/nixpkgs
63 lines
1.7 KiB
XML
63 lines
1.7 KiB
XML
<section xmlns="http://docbook.org/ns/docbook"
|
|
xmlns:xlink="http://www.w3.org/1999/xlink"
|
|
xmlns:xi="http://www.w3.org/2001/XInclude"
|
|
version="5.0"
|
|
xml:id="sec-meta-attributes">
|
|
|
|
<title>Meta Attributes</title>
|
|
|
|
<para>Like Nix packages, NixOS modules can declare meta-attributes to provide
|
|
extra information. Module meta attributes are defined in the
|
|
<filename
|
|
xlink:href="https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/misc/meta.nix">meta.nix</filename>
|
|
special module.</para>
|
|
|
|
<para><literal>meta</literal> is a top level attribute like
|
|
<literal>options</literal> and <literal>config</literal>. Available
|
|
meta-attributes are <literal>maintainers</literal> and
|
|
<literal>doc</literal>.</para>
|
|
|
|
<para>Each of the meta-attributes must be defined at most once per module
|
|
file.</para>
|
|
|
|
<programlisting>
|
|
{ config, lib, pkgs, ... }:
|
|
{
|
|
options = {
|
|
...
|
|
};
|
|
|
|
config = {
|
|
...
|
|
};
|
|
|
|
meta = {
|
|
maintainers = with lib.maintainers; [ ericsagnes ]; <co
|
|
xml:id='modules-meta-1' />
|
|
doc = ./default.xml; <co xml:id='modules-meta-2' />
|
|
};
|
|
}
|
|
</programlisting>
|
|
|
|
<calloutlist>
|
|
<callout arearefs='modules-meta-1'>
|
|
<para>
|
|
<varname>maintainers</varname> contains a list of the module maintainers.
|
|
</para>
|
|
</callout>
|
|
|
|
<callout arearefs='modules-meta-2'>
|
|
<para>
|
|
<varname>doc</varname> points to a valid DocBook file containing the module
|
|
documentation. Its contents is automatically added to <xref
|
|
linkend="ch-configuration"/>.
|
|
Changes to a module documentation have to be checked to not break
|
|
building the NixOS manual:
|
|
</para>
|
|
<programlisting>$ nix-build nixos/release.nix -A manual</programlisting>
|
|
</callout>
|
|
|
|
</calloutlist>
|
|
|
|
</section>
|