{ config, lib, pkgs, ... }: with lib; let xcfg = config.services.xserver; cfg = xcfg.desktopManager.plasma5; inherit (pkgs) kdeApplications kdeFrameworks plasma5; libsForQt5 = pkgs.libsForQt514; qt5 = pkgs.qt514; 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 "${startplasma-x11}" ''; in { options = { services.xserver.desktopManager.plasma5 = { enable = mkOption { type = types.bool; default = false; description = "Enable the Plasma 5 (KDE 5) desktop environment."; }; phononBackend = mkOption { type = types.enum [ "gstreamer" "vlc" ]; default = "gstreamer"; example = "vlc"; description = "Phonon audio backend to install."; }; supportDDC = mkOption { type = types.bool; default = false; description = '' Support setting monitor brightness via DDC. This is not needed for controlling brightness of the internal monitor of a laptop and as it is considered experimental by upstream, it is disabled by default. ''; }; }; }; imports = [ (mkRemovedOptionModule [ "services" "xserver" "desktopManager" "plasma5" "enableQt4Support" ] "Phonon no longer supports Qt 4.") (mkRenamedOptionModule [ "services" "xserver" "desktopManager" "kde5" ] [ "services" "xserver" "desktopManager" "plasma5" ]) ]; config = mkMerge [ (mkIf cfg.enable { services.xserver.desktopManager.session = singleton { name = "plasma5"; bgSupport = true; start = startplasma; }; security.wrappers = { kcheckpass.source = "${lib.getBin plasma5.kscreenlocker}/libexec/kcheckpass"; start_kdeinit.source = "${lib.getBin pkgs.kinit}/libexec/kf5/start_kdeinit"; kwin_wayland = { source = "${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 qt5; 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 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 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 = [ pkgs.xdg-desktop-portal-kde ]; # Update the start menu for each user that is currently logged in system.userActivationScripts.plasmaSetup = activationScript; }) ]; }