nixpkgs/nixos/modules/services/x11/desktop-managers/plasma5.nix
WORLDofPEACE 452f7e14d4 nixos/tools: generate an xserver config
The desktop configuration won't enable xserver.
If there's multiple desktops enabled they will now evaluate properly.
2021-02-13 18:46:01 -05:00

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{ config, lib, pkgs, ... }:
with lib;
let
xcfg = config.services.xserver;
cfg = xcfg.desktopManager.plasma5;
libsForQt5 = pkgs.plasma5Packages;
inherit (libsForQt5) kdeApplications kdeFrameworks plasma5;
inherit (pkgs) writeText;
pulseaudio = config.hardware.pulseaudio;
pactl = "${getBin pulseaudio.package}/bin/pactl";
startplasma-x11 = "${getBin plasma5.plasma-workspace}/bin/startplasma-x11";
sed = "${getBin pkgs.gnused}/bin/sed";
gtkrc2 = writeText "gtkrc-2.0" ''
# Default GTK+ 2 config for NixOS Plasma 5
include "/run/current-system/sw/share/themes/Breeze/gtk-2.0/gtkrc"
style "user-font"
{
font_name="Sans Serif Regular"
}
widget_class "*" style "user-font"
gtk-font-name="Sans Serif Regular 10"
gtk-theme-name="Breeze"
gtk-icon-theme-name="breeze"
gtk-fallback-icon-theme="hicolor"
gtk-cursor-theme-name="breeze_cursors"
gtk-toolbar-style=GTK_TOOLBAR_ICONS
gtk-menu-images=1
gtk-button-images=1
'';
gtk3_settings = writeText "settings.ini" ''
[Settings]
gtk-font-name=Sans Serif Regular 10
gtk-theme-name=Breeze
gtk-icon-theme-name=breeze
gtk-fallback-icon-theme=hicolor
gtk-cursor-theme-name=breeze_cursors
gtk-toolbar-style=GTK_TOOLBAR_ICONS
gtk-menu-images=1
gtk-button-images=1
'';
kcminputrc = writeText "kcminputrc" ''
[Mouse]
cursorTheme=breeze_cursors
cursorSize=0
'';
activationScript = ''
${set_XDG_CONFIG_HOME}
# The KDE icon cache is supposed to update itself automatically, but it uses
# the timestamp on the icon theme directory as a trigger. This doesn't work
# on NixOS because the timestamp never changes. As a workaround, delete the
# icon cache at login and session activation.
# See also: http://lists-archives.org/kde-devel/26175-what-when-will-icon-cache-refresh.html
rm -fv $HOME/.cache/icon-cache.kcache
# xdg-desktop-settings generates this empty file but
# it makes kbuildsyscoca5 fail silently. To fix this
# remove that menu if it exists.
rm -fv ''${XDG_CONFIG_HOME}/menus/applications-merged/xdg-desktop-menu-dummy.menu
# Qt writes a weird libraryPath line to
# ~/.config/Trolltech.conf that causes the KDE plugin
# paths of previous KDE invocations to be searched.
# Obviously using mismatching KDE libraries is potentially
# disastrous, so here we nuke references to the Nix store
# in Trolltech.conf. A better solution would be to stop
# Qt from doing this wackiness in the first place.
trolltech_conf="''${XDG_CONFIG_HOME}/Trolltech.conf"
if [ -e "$trolltech_conf" ]; then
${sed} -i "$trolltech_conf" -e '/nix\\store\|nix\/store/ d'
fi
# Remove the kbuildsyscoca5 cache. It will be regenerated
# immediately after. This is necessary for kbuildsyscoca5 to
# recognize that software that has been removed.
rm -fv $HOME/.cache/ksycoca*
${libsForQt5.kservice}/bin/kbuildsycoca5
'';
set_XDG_CONFIG_HOME = ''
# Set the default XDG_CONFIG_HOME if it is unset.
# Per the XDG Base Directory Specification:
# https://specifications.freedesktop.org/basedir-spec/latest
# 1. Never export this variable! If it is unset, then child processes are
# expected to set the default themselves.
# 2. Contaminate / if $HOME is unset; do not check if $HOME is set.
XDG_CONFIG_HOME=''${XDG_CONFIG_HOME:-$HOME/.config}
'';
startplasma =
''
${set_XDG_CONFIG_HOME}
mkdir -p "''${XDG_CONFIG_HOME}"
''
+ optionalString pulseaudio.enable ''
# Load PulseAudio module for routing support.
# See also: http://colin.guthr.ie/2009/10/so-how-does-the-kde-pulseaudio-support-work-anyway/
${pactl} load-module module-device-manager "do_routing=1"
''
+ ''
${activationScript}
# Create default configurations if Plasma has never been started.
kdeglobals="''${XDG_CONFIG_HOME}/kdeglobals"
if ! [ -f "$kdeglobals" ]
then
kcminputrc="''${XDG_CONFIG_HOME}/kcminputrc"
if ! [ -f "$kcminputrc" ]
then
cat ${kcminputrc} >"$kcminputrc"
fi
gtkrc2="$HOME/.gtkrc-2.0"
if ! [ -f "$gtkrc2" ]
then
cat ${gtkrc2} >"$gtkrc2"
fi
gtk3_settings="''${XDG_CONFIG_HOME}/gtk-3.0/settings.ini"
if ! [ -f "$gtk3_settings" ]
then
mkdir -p "$(dirname "$gtk3_settings")"
cat ${gtk3_settings} >"$gtk3_settings"
fi
fi
''
+ ''
exec "${startplasma-x11}"
'';
in
{
options = {
services.xserver.desktopManager.plasma5 = {
enable = mkOption {
type = types.bool;
default = false;
description = "Enable the Plasma 5 (KDE 5) desktop environment.";
};
phononBackend = mkOption {
type = types.enum [ "gstreamer" "vlc" ];
default = "gstreamer";
example = "vlc";
description = "Phonon audio backend to install.";
};
supportDDC = mkOption {
type = types.bool;
default = false;
description = ''
Support setting monitor brightness via DDC.
</para>
<para>
This is not needed for controlling brightness of the internal monitor
of a laptop and as it is considered experimental by upstream, it is
disabled by default.
'';
};
};
};
imports = [
(mkRemovedOptionModule [ "services" "xserver" "desktopManager" "plasma5" "enableQt4Support" ] "Phonon no longer supports Qt 4.")
(mkRenamedOptionModule [ "services" "xserver" "desktopManager" "kde5" ] [ "services" "xserver" "desktopManager" "plasma5" ])
];
config = mkMerge [
(mkIf cfg.enable {
# Seed our configuration into nixos-generate-config
system.nixos-generate-config.desktopConfiguration = [''
# Enable the Plasma 5 Desktop Environment.
services.xserver.displayManager.sddm.enable = true;
services.xserver.desktopManager.plasma5.enable = true;
''];
services.xserver.desktopManager.session = singleton {
name = "plasma5";
bgSupport = true;
start = startplasma;
};
security.wrappers = {
kcheckpass.source = "${lib.getBin libsForQt5.kscreenlocker}/libexec/kcheckpass";
start_kdeinit.source = "${lib.getBin libsForQt5.kinit}/libexec/kf5/start_kdeinit";
kwin_wayland = {
source = "${lib.getBin plasma5.kwin}/bin/kwin_wayland";
capabilities = "cap_sys_nice+ep";
};
};
# DDC support
boot.kernelModules = lib.optional cfg.supportDDC "i2c_dev";
services.udev.extraRules = lib.optionalString cfg.supportDDC ''
KERNEL=="i2c-[0-9]*", TAG+="uaccess"
'';
environment.systemPackages =
with libsForQt5;
with plasma5; with kdeApplications; with kdeFrameworks;
[
frameworkintegration
kactivities
kauth
kcmutils
kconfig
kconfigwidgets
kcoreaddons
kdoctools
kdbusaddons
kdeclarative
kded
kdesu
kdnssd
kemoticons
kfilemetadata
kglobalaccel
kguiaddons
kiconthemes
kidletime
kimageformats
kinit
kirigami2 # In system profile for SDDM theme. TODO: wrapper.
kio
kjobwidgets
knewstuff
knotifications
knotifyconfig
kpackage
kparts
kpeople
krunner
kservice
ktextwidgets
kwallet
kwallet-pam
kwalletmanager
kwayland
kwidgetsaddons
kxmlgui
kxmlrpcclient
plasma-framework
solid
sonnet
threadweaver
breeze-qt5
kactivitymanagerd
kde-cli-tools
kdecoration
kdeplasma-addons
kgamma5
khotkeys
kinfocenter
kmenuedit
kscreen
kscreenlocker
ksysguard
kwayland
kwin
kwrited
libkscreen
libksysguard
milou
plasma-browser-integration
plasma-integration
polkit-kde-agent
spectacle
systemsettings
plasma-desktop
plasma-workspace
plasma-workspace-wallpapers
dolphin
dolphin-plugins
ffmpegthumbs
kdegraphics-thumbnailers
khelpcenter
kio-extras
konsole
oxygen
print-manager
breeze-icons
pkgs.hicolor-icon-theme
kde-gtk-config breeze-gtk
qtvirtualkeyboard
pkgs.xdg-user-dirs # Update user dirs as described in https://freedesktop.org/wiki/Software/xdg-user-dirs/
]
# Phonon audio backend
++ lib.optional (cfg.phononBackend == "gstreamer") libsForQt5.phonon-backend-gstreamer
++ lib.optional (cfg.phononBackend == "vlc") libsForQt5.phonon-backend-vlc
# Optional hardware support features
++ lib.optionals config.hardware.bluetooth.enable [ bluedevil bluez-qt pkgs.openobex pkgs.obexftp ]
++ lib.optional config.networking.networkmanager.enable plasma-nm
++ lib.optional config.hardware.pulseaudio.enable plasma-pa
++ lib.optional config.powerManagement.enable powerdevil
++ lib.optional config.services.colord.enable pkgs.colord-kde
++ lib.optionals config.services.samba.enable [ kdenetwork-filesharing pkgs.samba ]
++ lib.optional config.services.xserver.wacom.enable pkgs.wacomtablet;
environment.pathsToLink = [
# FIXME: modules should link subdirs of `/share` rather than relying on this
"/share"
];
environment.etc."X11/xkb".source = xcfg.xkbDir;
# Enable GTK applications to load SVG icons
services.xserver.gdk-pixbuf.modulePackages = [ pkgs.librsvg ];
fonts.fonts = with pkgs; [ noto-fonts hack-font ];
fonts.fontconfig.defaultFonts = {
monospace = [ "Hack" "Noto Sans Mono" ];
sansSerif = [ "Noto Sans" ];
serif = [ "Noto Serif" ];
};
programs.ssh.askPassword = mkDefault "${plasma5.ksshaskpass.out}/bin/ksshaskpass";
# Enable helpful DBus services.
services.udisks2.enable = true;
services.upower.enable = config.powerManagement.enable;
services.system-config-printer.enable = (mkIf config.services.printing.enable (mkDefault true));
services.xserver.libinput.enable = mkDefault true;
# Extra UDEV rules used by Solid
services.udev.packages = [
pkgs.libmtp
pkgs.media-player-info
];
services.xserver.displayManager.sddm = {
theme = mkDefault "breeze";
};
security.pam.services.kde = { allowNullPassword = true; };
# Doing these one by one seems silly, but we currently lack a better
# construct for handling common pam configs.
security.pam.services.gdm.enableKwallet = true;
security.pam.services.kdm.enableKwallet = true;
security.pam.services.lightdm.enableKwallet = true;
security.pam.services.sddm.enableKwallet = true;
xdg.portal.enable = true;
xdg.portal.extraPortals = [ plasma5.xdg-desktop-portal-kde ];
# Update the start menu for each user that is currently logged in
system.userActivationScripts.plasmaSetup = activationScript;
nixpkgs.config.firefox.enablePlasmaBrowserIntegration = true;
})
];
}