mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-18 11:40:45 +00:00
135 lines
3.3 KiB
XML
135 lines
3.3 KiB
XML
<refentry xmlns="http://docbook.org/ns/docbook"
|
|
xmlns:xlink="http://www.w3.org/1999/xlink"
|
|
xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
<refmeta>
|
|
<refentrytitle><command>nixos-option</command>
|
|
</refentrytitle><manvolnum>8</manvolnum>
|
|
<refmiscinfo class="source">NixOS</refmiscinfo>
|
|
<!-- <refmiscinfo class="version"><xi:include href="version.txt" parse="text"/></refmiscinfo> -->
|
|
</refmeta>
|
|
<refnamediv>
|
|
<refname><command>nixos-option</command></refname>
|
|
<refpurpose>inspect a NixOS configuration</refpurpose>
|
|
</refnamediv>
|
|
<refsynopsisdiv>
|
|
<cmdsynopsis>
|
|
<command>nixos-option</command>
|
|
|
|
<arg>
|
|
<group choice='req'>
|
|
<arg choice='plain'><option>-r</option></arg>
|
|
<arg choice='plain'><option>--recursive</option></arg>
|
|
</group>
|
|
</arg>
|
|
|
|
<arg>
|
|
<option>-I</option> <replaceable>path</replaceable>
|
|
</arg>
|
|
|
|
<arg>
|
|
<replaceable>option.name</replaceable>
|
|
</arg>
|
|
</cmdsynopsis>
|
|
</refsynopsisdiv>
|
|
<refsection>
|
|
<title>Description</title>
|
|
<para>
|
|
This command evaluates the configuration specified in
|
|
<filename>/etc/nixos/configuration.nix</filename> and returns the properties
|
|
of the option name given as argument.
|
|
</para>
|
|
<para>
|
|
When the option name is not an option, the command prints the list of
|
|
attributes contained in the attribute set.
|
|
</para>
|
|
</refsection>
|
|
<refsection>
|
|
<title>Options</title>
|
|
<para>
|
|
This command accepts the following options:
|
|
</para>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><option>-r</option></term>
|
|
<term><option>--recursive</option></term>
|
|
<listitem>
|
|
<para>
|
|
Print all the values at or below the specified path recursively.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>
|
|
<option>-I</option> <replaceable>path</replaceable>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
This option is passed to the underlying
|
|
<command>nix-instantiate</command> invocation.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsection>
|
|
<refsection>
|
|
<title>Environment</title>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term>
|
|
<envar>NIXOS_CONFIG</envar>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Path to the main NixOS configuration module. Defaults to
|
|
<filename>/etc/nixos/configuration.nix</filename>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsection>
|
|
<refsection>
|
|
<title>Examples</title>
|
|
<para>
|
|
Investigate option values:
|
|
<screen><prompt>$ </prompt>nixos-option boot.loader
|
|
This attribute set contains:
|
|
generationsDir
|
|
grub
|
|
initScript
|
|
|
|
<prompt>$ </prompt>nixos-option boot.loader.grub.enable
|
|
Value:
|
|
true
|
|
|
|
Default:
|
|
true
|
|
|
|
Description:
|
|
Whether to enable the GNU GRUB boot loader.
|
|
|
|
Declared by:
|
|
"/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/nixos/modules/system/boot/loader/grub/grub.nix"
|
|
|
|
Defined by:
|
|
"/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/nixos/modules/system/boot/loader/grub/grub.nix"
|
|
</screen>
|
|
</para>
|
|
</refsection>
|
|
<refsection>
|
|
<title>Bugs</title>
|
|
<para>
|
|
The author listed in the following section is wrong. If there is any other
|
|
bug, please report to Nicolas Pierron.
|
|
</para>
|
|
</refsection>
|
|
<refsection>
|
|
<title>See also</title>
|
|
<para>
|
|
<citerefentry>
|
|
<refentrytitle>configuration.nix</refentrytitle>
|
|
<manvolnum>5</manvolnum>
|
|
</citerefentry>
|
|
</para>
|
|
</refsection>
|
|
</refentry>
|