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Add NixOS option 'nixpkgs.overlays' to set the argument of Nixpkgs.

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Nicolas B. Pierron 2016-12-25 18:50:00 +00:00 committed by Nicolas B. Pierron
parent f5dfe78a1e
commit 83f7d5fc0a
1 changed files with 35 additions and 13 deletions
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48
nixos/modules/misc/nixpkgs.nix
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@ -29,11 +29,19 @@ let
};
configType = mkOptionType {
name = "nixpkgs config";
name = "nixpkgs-config";
description = "nixpkgs config"
check = traceValIfNot isConfig;
merge = args: fold (def: mergeConfig def.value) {};
};
overlayType = mkOptionType {
name = "nixpkgs-overlay";
description = "nixpkgs overlay";
check = builtins.isFunction;
merge = lib.mergeOneOption;
};
in
{
@ -43,23 +51,37 @@ in
default = {};
example = literalExample
''
{ firefox.enableGeckoMediaPlayer = true;
packageOverrides = pkgs: {
firefox60Pkgs = pkgs.firefox60Pkgs.override {
enableOfficialBranding = true;
};
};
}
{ firefox.enableGeckoMediaPlayer = true; }
'';
type = configType;
description = ''
The configuration of the Nix Packages collection. (For
details, see the Nixpkgs documentation.) It allows you to set
package configuration options, and to override packages
globally through the <varname>packageOverrides</varname>
option. The latter is a function that takes as an argument
the <emphasis>original</emphasis> Nixpkgs, and must evaluate
to a set of new or overridden packages.
package configuration options.
'';
};
nixpkgs.overlays = mkOption {
default = [];
example = literalExample
''
[ (self: super: {
openssh = super.openssh.override {
hpnSupport = true;
withKerberos = true;
kerberos = self.libkrb5
};
};
) ]
'';
type = lib.listOf overlayType;
description = ''
List of overlays to use with the Nix Packages collection.
(For details, see the Nixpkgs documentation.) It allows
you to override packages globally. This is a function that
takes as an argument the <emphasis>original</emphasis> Nixpkgs.
The first argument should be used for finding dependencies, and
the second should be used for overriding recipes.
'';
};