2017-10-20 23:22:47 +02:00
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# Adapted from Nixpkgs.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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isConfig = x:
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builtins.isAttrs x || builtins.isFunction x;
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optCall = f: x:
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if builtins.isFunction f
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then f x
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else f;
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mergeConfig = lhs_: rhs_:
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let
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lhs = optCall lhs_ { inherit pkgs; };
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rhs = optCall rhs_ { inherit pkgs; };
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in
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lhs // rhs //
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optionalAttrs (lhs ? packageOverrides) {
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packageOverrides = pkgs:
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optCall lhs.packageOverrides pkgs //
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optCall (attrByPath ["packageOverrides"] ({}) rhs) pkgs;
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} //
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optionalAttrs (lhs ? perlPackageOverrides) {
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perlPackageOverrides = pkgs:
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optCall lhs.perlPackageOverrides pkgs //
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optCall (attrByPath ["perlPackageOverrides"] ({}) rhs) pkgs;
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};
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configType = mkOptionType {
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name = "nixpkgs-config";
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description = "nixpkgs config";
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2018-07-04 19:54:27 +02:00
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check = x:
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let traceXIfNot = c:
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if c x then true
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else lib.traceSeqN 1 x false;
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in traceXIfNot isConfig;
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2017-10-20 23:22:47 +02:00
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merge = args: fold (def: mergeConfig def.value) {};
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};
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overlayType = mkOptionType {
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name = "nixpkgs-overlay";
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description = "nixpkgs overlay";
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check = builtins.isFunction;
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merge = lib.mergeOneOption;
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};
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_pkgs = import <nixpkgs> (
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filterAttrs (n: v: v != null) config.nixpkgs
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);
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in
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{
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options.nixpkgs = {
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config = mkOption {
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default = null;
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example = { allowBroken = true; };
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type = types.nullOr configType;
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description = ''
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The configuration of the Nix Packages collection. (For
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details, see the Nixpkgs documentation.) It allows you to set
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package configuration options.
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2018-03-17 17:08:41 +01:00
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2017-10-20 23:22:47 +02:00
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</para><para>
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2018-03-17 17:08:41 +01:00
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2017-10-20 23:22:47 +02:00
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If <literal>null</literal>, then configuration is taken from
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the fallback location, for example,
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<filename>~/.config/nixpkgs/config.nix</filename>.
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2018-03-17 17:08:41 +01:00
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</para><para>
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Note, this option will not apply outside your Home Manager
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configuration like when installing manually through
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<command>nix-env</command>. If you want to apply it both
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inside and outside Home Manager you can put it in a separate
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file and include something like
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<programlisting>
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nixpkgs.config = import ./nixpkgs-config.nix;
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xdg.configFile."nixpkgs/config.nix".source =
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./nixpkgs-config.nix;
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</programlisting>
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in your Home Manager configuration.
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2017-10-20 23:22:47 +02:00
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'';
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};
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overlays = mkOption {
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default = null;
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example = literalExample
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''
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[ (self: super: {
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openssh = super.openssh.override {
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hpnSupport = true;
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withKerberos = true;
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kerberos = self.libkrb5;
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};
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};
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) ]
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'';
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type = types.nullOr (types.listOf overlayType);
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description = ''
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List of overlays to use with the Nix Packages collection. (For
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details, see the Nixpkgs documentation.) It allows you to
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override packages globally. This is a function that takes as
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an argument the <emphasis>original</emphasis> Nixpkgs. The
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first argument should be used for finding dependencies, and
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the second should be used for overriding recipes.
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2018-03-17 17:08:41 +01:00
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2017-10-20 23:22:47 +02:00
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</para><para>
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2018-03-17 17:08:41 +01:00
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2017-10-20 23:22:47 +02:00
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If <literal>null</literal>, then the overlays are taken from
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the fallback location, for example,
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<filename>~/.config/nixpkgs/overlays</filename>.
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2018-03-17 17:08:41 +01:00
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</para><para>
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Like <varname>nixpkgs.config</varname> this option only
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applies within the Home Manager configuration. See
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<varname>nixpkgs.config</varname> for a suggested setup that
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works both internally and externally.
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2017-10-20 23:22:47 +02:00
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'';
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};
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system = mkOption {
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type = types.str;
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example = "i686-linux";
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internal = true;
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description = ''
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Specifies the Nix platform type for which the user environment
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should be built. If unset, it defaults to the platform type of
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your host system. Specifying this option is useful when doing
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distributed multi-platform deployment, or when building
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virtual machines.
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'';
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};
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};
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config = {
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_module.args = {
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pkgs = _pkgs;
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2019-01-28 07:09:28 +01:00
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pkgs_i686 =
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if _pkgs.stdenv.isLinux && _pkgs.stdenv.hostPlatform.isx86
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then _pkgs.pkgsi686Linux
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else { };
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2017-10-20 23:22:47 +02:00
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};
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};
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}
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