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nixpkgs: expand description of nixpkgs.config and nixpkgs.overlays

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(cherry picked from commit 75c4075345)
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Robert Helgesson 2018-03-17 17:08:41 +01:00
parent eda46344a0
commit 963de93c55
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modules/misc/nixpkgs.nix
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@ -61,10 +61,28 @@ in
The configuration of the Nix Packages collection. (For The configuration of the Nix Packages collection. (For
details, see the Nixpkgs documentation.) It allows you to set details, see the Nixpkgs documentation.) It allows you to set
package configuration options. package configuration options.
</para><para> </para><para>
If <literal>null</literal>, then configuration is taken from If <literal>null</literal>, then configuration is taken from
the fallback location, for example, the fallback location, for example,
<filename>~/.config/nixpkgs/config.nix</filename>. <filename>~/.config/nixpkgs/config.nix</filename>.
</para><para>
Note, this option will not apply outside your Home Manager
configuration like when installing manually through
<command>nix-env</command>. If you want to apply it both
inside and outside Home Manager you can put it in a separate
file and include something like
<programlisting>
nixpkgs.config = import ./nixpkgs-config.nix;
xdg.configFile."nixpkgs/config.nix".source =
./nixpkgs-config.nix;
</programlisting>
in your Home Manager configuration.
''; '';
}; };
@ -89,10 +107,19 @@ in
an argument the <emphasis>original</emphasis> Nixpkgs. The an argument the <emphasis>original</emphasis> Nixpkgs. The
first argument should be used for finding dependencies, and first argument should be used for finding dependencies, and
the second should be used for overriding recipes. the second should be used for overriding recipes.
</para><para> </para><para>
If <literal>null</literal>, then the overlays are taken from If <literal>null</literal>, then the overlays are taken from
the fallback location, for example, the fallback location, for example,
<filename>~/.config/nixpkgs/overlays</filename>. <filename>~/.config/nixpkgs/overlays</filename>.
</para><para>
Like <varname>nixpkgs.config</varname> this option only
applies within the Home Manager configuration. See
<varname>nixpkgs.config</varname> for a suggested setup that
works both internally and externally.
''; '';
}; };