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NixOS: update config.nixpkgs.pkgs documentation

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This commit is contained in:
Robert Hensing 2018-11-10 23:21:21 +01:00
parent b682778366
commit b60dccbf4f
1 changed files with 12 additions and 8 deletions
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20
nixos/modules/misc/nixpkgs.nix
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@ -75,11 +75,18 @@ in
type = pkgsType;
example = literalExample ''import <nixpkgs> {}'';
description = ''
This is the evaluation of Nixpkgs that will be provided to
all NixOS modules. Defining this option has the effect of
ignoring the other options that would otherwise be used to
evaluate Nixpkgs, because those are arguments to the default
value. The default value imports the Nixpkgs source files
If set, the pkgs argument to all NixOS modules is the value of
this option, extended with <code>nixpkgs.overlays</code>, if
that is also set. Either <code>nixpkgs.crossSystem</code> or
<code>nixpkgs.localSystem</code> will be used in an assertion
to check that the NixOS and Nixpkgs architectures match. Any
other options in <code>nixpkgs.*</code>, notably <code>config</code>,
will be ignored.
If unset, the pkgs argument to all NixOS modules is determined
as shown in the default value for this option.
The default value imports the Nixpkgs source files
relative to the location of this NixOS module, because
NixOS and Nixpkgs are distributed together for consistency,
so the <code>nixos</code> in the default value is in fact a
@ -140,9 +147,6 @@ in
If <code>nixpkgs.pkgs</code> is set, overlays specified here
will be applied after the overlays that were already present
in <code>nixpkgs.pkgs</code>.
Note that other options such as <code>nixpkgs.config</code> will
be ignored when <code>nixpkgs.pkgs</code> is set.
'';
};