mirror of
https://github.com/ilyakooo0/nixpkgs.git
synced 2024-12-27 05:43:50 +03:00
85 lines
2.4 KiB
XML
85 lines
2.4 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-custom-packages">
|
||
|
||
<title>Adding Custom Packages</title>
|
||
|
||
<para>It’s possible that a package you need is not available in NixOS.
|
||
In that case, you can do two things. First, you can clone the Nixpkgs
|
||
repository, add the package to your clone, and (optionally) submit a
|
||
patch or pull request to have it accepted into the main Nixpkgs
|
||
repository. This is described in detail in the <link
|
||
xlink:href="http://nixos.org/nixpkgs/manual">Nixpkgs manual</link>.
|
||
In short, you clone Nixpkgs:
|
||
|
||
<screen>
|
||
$ git clone git://github.com/NixOS/nixpkgs.git
|
||
$ cd nixpkgs
|
||
</screen>
|
||
|
||
Then you write and test the package as described in the Nixpkgs
|
||
manual. Finally, you add it to
|
||
<literal>environment.systemPackages</literal>, e.g.
|
||
|
||
<programlisting>
|
||
environment.systemPackages = [ pkgs.my-package ];
|
||
</programlisting>
|
||
|
||
and you run <command>nixos-rebuild</command>, specifying your own
|
||
Nixpkgs tree:
|
||
|
||
<screen>
|
||
$ nixos-rebuild switch -I nixpkgs=/path/to/my/nixpkgs</screen>
|
||
|
||
</para>
|
||
|
||
<para>The second possibility is to add the package outside of the
|
||
Nixpkgs tree. For instance, here is how you specify a build of the
|
||
<link xlink:href="http://www.gnu.org/software/hello/">GNU Hello</link>
|
||
package directly in <filename>configuration.nix</filename>:
|
||
|
||
<programlisting>
|
||
environment.systemPackages =
|
||
let
|
||
my-hello = with pkgs; stdenv.mkDerivation rec {
|
||
name = "hello-2.8";
|
||
src = fetchurl {
|
||
url = "mirror://gnu/hello/${name}.tar.gz";
|
||
sha256 = "0wqd8sjmxfskrflaxywc7gqw7sfawrfvdxd9skxawzfgyy0pzdz6";
|
||
};
|
||
};
|
||
in
|
||
[ my-hello ];
|
||
</programlisting>
|
||
|
||
Of course, you can also move the definition of
|
||
<literal>my-hello</literal> into a separate Nix expression, e.g.
|
||
<programlisting>
|
||
environment.systemPackages = [ (import ./my-hello.nix) ];
|
||
</programlisting>
|
||
where <filename>my-hello.nix</filename> contains:
|
||
<programlisting>
|
||
with import <nixpkgs> {}; # bring all of Nixpkgs into scope
|
||
|
||
stdenv.mkDerivation rec {
|
||
name = "hello-2.8";
|
||
src = fetchurl {
|
||
url = "mirror://gnu/hello/${name}.tar.gz";
|
||
sha256 = "0wqd8sjmxfskrflaxywc7gqw7sfawrfvdxd9skxawzfgyy0pzdz6";
|
||
};
|
||
}
|
||
</programlisting>
|
||
|
||
This allows testing the package easily:
|
||
<screen>
|
||
$ nix-build my-hello.nix
|
||
$ ./result/bin/hello
|
||
Hello, world!
|
||
</screen>
|
||
|
||
</para>
|
||
|
||
</section>
|