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nixpkgs/nixos/modules/services/x11/desktop-managers/plasma5.nix
2022-03-23 18:19:33 +08:00

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{ config, lib, pkgs, ... }:
let
xcfg = config.services.xserver;
cfg = xcfg.desktopManager.plasma5;
# Use only for **internal** options.
# This is not exactly user-friendly.
kdeConfigurationType = with types;
let
valueTypes = (oneOf [
bool
float
int
str
]) // {
description = "KDE Configuration value";
emptyValue.value = "";
};
set = (nullOr (lazyAttrsOf valueTypes)) // {
description = "KDE Configuration set";
emptyValue.value = {};
};
in (lazyAttrsOf set) // {
description = "KDE Configuration file";
emptyValue.value = {};
};
libsForQt5 = pkgs.plasma5Packages;
inherit (libsForQt5) kdeGear kdeFrameworks plasma5;
inherit (pkgs) writeText;
inherit (lib)
getBin optionalString
mkRemovedOptionModule mkRenamedOptionModule
mkDefault mkIf mkMerge mkOption types;
ini = pkgs.formats.ini { };
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 = ini.generate "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 = ini.generate "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
${getBin pkgs.gnused}/bin/sed -i "$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 config.hardware.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/
${getBin config.hardware.pulseaudio.package}/bin/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
'';
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.
'';
};
useQtScaling = mkOption {
type = types.bool;
default = false;
description = "Enable HiDPI scaling in Qt.";
};
runUsingSystemd = mkOption {
description = "Use systemd to manage the Plasma session";
type = types.bool;
default = false;
};
# Internally allows configuring kdeglobals globally
kdeglobals = mkOption {
internal = true;
default = {};
type = kdeConfigurationType;
};
# Internally allows configuring kwin globally
kwinrc = mkOption {
internal = true;
default = {};
type = kdeConfigurationType;
};
mobile.enable = mkOption {
type = types.bool;
default = false;
description = ''
Enable support for running the Plasma Mobile shell.
'';
};
mobile.installRecommendedSoftware = mkOption {
type = types.bool;
default = true;
description = ''
Installs software recommended for use with Plasma Mobile, but which
is not strictly required for Plasma Mobile to run.
'';
};
};
imports = [
(mkRemovedOptionModule [ "services" "xserver" "desktopManager" "plasma5" "enableQt4Support" ] "Phonon no longer supports Qt 4.")
(mkRenamedOptionModule [ "services" "xserver" "desktopManager" "kde5" ] [ "services" "xserver" "desktopManager" "plasma5" ])
];
config = mkMerge [
# Common Plasma dependencies
(mkIf (cfg.enable || cfg.mobile.enable) {
security.wrappers = {
kcheckpass = {
setuid = true;
owner = "root";
group = "root";
source = "${getBin libsForQt5.kscreenlocker}/libexec/kcheckpass";
};
start_kdeinit = {
setuid = true;
owner = "root";
group = "root";
source = "${getBin libsForQt5.kinit}/libexec/kf5/start_kdeinit";
};
kwin_wayland = {
owner = "root";
group = "root";
capabilities = "cap_sys_nice+ep";
source = "${getBin plasma5.kwin}/bin/kwin_wayland";
};
};
# 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 kdeGear; 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
kwayland-integration
kwidgetsaddons
kxmlgui
kxmlrpcclient
plasma-framework
solid
sonnet
threadweaver
breeze-qt5
kactivitymanagerd
kde-cli-tools
kdecoration
kdeplasma-addons
kgamma5
khotkeys
kscreen
kscreenlocker
kwayland
kwin
kwrited
libkscreen
libksysguard
milou
plasma-browser-integration
plasma-integration
polkit-kde-agent
plasma-desktop
plasma-workspace
plasma-workspace-wallpapers
konsole
oxygen
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.services.pipewire.pulse.enable plasma-pa
++ lib.optional config.powerManagement.enable powerdevil
++ lib.optional config.services.colord.enable pkgs.colord-kde
++ lib.optional config.services.hardware.bolt.enable pkgs.plasma5Packages.plasma-thunderbolt
++ 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;
environment.sessionVariables.PLASMA_USE_QT_SCALING = mkIf cfg.useQtScaling "1";
# 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.accounts-daemon.enable = true;
# when changing an account picture the accounts-daemon reads a temporary file containing the image which systemsettings5 may place under /tmp
systemd.services.accounts-daemon.serviceConfig.PrivateTmp = false;
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 = [
# libmtp has "bin", "dev", "out" outputs. UDEV rules file is in "out".
pkgs.libmtp.out
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;
systemd.user.services = {
plasma-early-setup = mkIf cfg.runUsingSystemd {
description = "Early Plasma setup";
wantedBy = [ "graphical-session-pre.target" ];
serviceConfig.Type = "oneshot";
script = activationScript;
};
};
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;
services.xserver.displayManager.setupCommands = startplasma;
nixpkgs.config.firefox.enablePlasmaBrowserIntegration = true;
environment.etc = {
"xdg/kwinrc".text = lib.generators.toINI {} cfg.kwinrc;
"xdg/kdeglobals".text = lib.generators.toINI {} cfg.kdeglobals;
};
})
# Plasma Desktop
(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.displayManager.sessionPackages = [ pkgs.libsForQt5.plasma5.plasma-workspace ];
# Default to be `plasma` (X11) instead of `plasmawayland`, since plasma wayland currently has
# many tiny bugs.
# See: https://github.com/NixOS/nixpkgs/issues/143272
services.xserver.displayManager.defaultSession = mkDefault "plasma";
environment.systemPackages =
with libsForQt5;
with plasma5; with kdeGear; with kdeFrameworks;
[
ksystemstats
kinfocenter
kmenuedit
plasma-systemmonitor
spectacle
systemsettings
dolphin
dolphin-plugins
ffmpegthumbs
kdegraphics-thumbnailers
khelpcenter
kio-extras
print-manager
elisa
gwenview
okular
]
;
systemd.user.services = {
plasma-run-with-systemd = {
description = "Run KDE Plasma via systemd";
wantedBy = [ "basic.target" ];
serviceConfig.Type = "oneshot";
script = ''
${set_XDG_CONFIG_HOME}
${kdeFrameworks.kconfig}/bin/kwriteconfig5 \
--file startkderc --group General --key systemdBoot ${lib.boolToString cfg.runUsingSystemd}
'';
};
};
})
# Plasma Mobile
(mkIf cfg.mobile.enable {
assertions = [
{
# The user interface breaks without NetworkManager
assertion = config.networking.networkmanager.enable;
message = "Plasma Mobile requires NetworkManager.";
}
{
# The user interface breaks without bluetooth
assertion = config.hardware.bluetooth.enable;
message = "Plasma Mobile requires Bluetooth.";
}
{
# The user interface breaks without pulse
assertion = config.hardware.pulseaudio.enable;
message = "Plasma Mobile requires pulseaudio.";
}
];
environment.systemPackages =
with libsForQt5;
with plasma5; with kdeApplications; with kdeFrameworks;
[
# Basic packages without which Plasma Mobile fails to work properly.
plasma-mobile
plasma-nano
pkgs.maliit-framework
pkgs.maliit-keyboard
]
++ lib.optionals (cfg.mobile.installRecommendedSoftware) (with libsForQt5.plasmaMobileGear;[
# Additional software made for Plasma Mobile.
alligator
angelfish
audiotube
calindori
kalk
kasts
kclock
keysmith
koko
krecorder
ktrip
kweather
plasma-dialer
plasma-phonebook
plasma-settings
spacebar
])
;
# The following services are needed or the UI is broken.
hardware.bluetooth.enable = true;
hardware.pulseaudio.enable = true;
networking.networkmanager.enable = true;
# Recommendations can be found here:
# - https://invent.kde.org/plasma-mobile/plasma-phone-settings/-/tree/master/etc/xdg
# This configuration is the minimum required for Plasma Mobile to *work*.
services.xserver.desktopManager.plasma5 = {
kdeglobals = {
KDE = {
# This forces a numeric PIN for the lockscreen, which is the
# recommendation from upstream.
LookAndFeelPackage = lib.mkDefault "org.kde.plasma.phone";
};
};
kwinrc = {
Windows = {
# Forces windows to be maximized
Placement = lib.mkDefault "Maximizing";
};
"org.kde.kdecoration2" = {
# No decorations (title bar)
NoPlugin = lib.mkDefault "true";
};
};
};
services.xserver.displayManager.sessionPackages = [ pkgs.libsForQt5.plasma5.plasma-mobile ];
})
];
}