b1a05a0865
Excluding modules/programs/environment.nix for PATHand QT_PLUGIN_PATH to allow the programs to continue running.
85 lines
2.5 KiB
Nix
85 lines
2.5 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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xcfg = config.services.xserver;
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cfg = xcfg.desktopManager;
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# If desktop manager `d' isn't capable of setting a background and
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# the xserver is enabled, the `feh' program is used as a fallback.
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needBGCond = d: ! (d ? bgSupport && d.bgSupport) && xcfg.enable;
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in
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{
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# Note: the order in which desktop manager modules are imported here
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# determines the default: later modules (if enabled) are preferred.
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# E.g., if KDE is enabled, it supersedes xterm.
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imports = [
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./none.nix ./xterm.nix ./xfce.nix ./kde5.nix ./lumina.nix
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./lxqt.nix ./enlightenment.nix ./gnome3.nix ./kodi.nix
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];
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options = {
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services.xserver.desktopManager = {
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session = mkOption {
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internal = true;
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default = [];
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example = singleton
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{ name = "kde";
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bgSupport = true;
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start = "...";
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};
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description = ''
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Internal option used to add some common line to desktop manager
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scripts before forwarding the value to the
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<varname>displayManager</varname>.
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'';
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apply = list: {
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list = map (d: d // {
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manage = "desktop";
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start = d.start
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+ optionalString (needBGCond d) ''
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if test -e $HOME/.background-image; then
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${pkgs.feh}/bin/feh --bg-scale $HOME/.background-image
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fi
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'';
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}) list;
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needBGPackages = [] != filter needBGCond list;
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};
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};
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default = mkOption {
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type = types.str;
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default = "";
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example = "none";
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description = "Default desktop manager loaded if none have been chosen.";
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apply = defaultDM:
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if defaultDM == "" && cfg.session.list != [] then
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(head cfg.session.list).name
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else if any (w: w.name == defaultDM) cfg.session.list then
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defaultDM
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else
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throw ''
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Default desktop manager (${defaultDM}) not found.
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Probably you want to change
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services.xserver.desktopManager.default = "${defaultDM}";
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to one of
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${concatMapStringsSep "\n " (w: "services.xserver.desktopManager.default = \"${w.name}\";") cfg.session.list}
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'';
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};
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};
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};
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config = {
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services.xserver.displayManager.session = cfg.session.list;
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environment.systemPackages =
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mkIf cfg.session.needBGPackages [ pkgs.feh ];
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};
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}
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