490 lines
14 KiB
Nix
490 lines
14 KiB
Nix
{ config, pkgs, ... }:
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with pkgs.lib;
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let
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kernelPackages = config.boot.kernelPackages;
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# Abbreviations.
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cfg = config.services.xserver;
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xorg = pkgs.xorg;
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# Map the video driver setting to a driver.
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knownVideoDrivers = {
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nvidia = { modules = [ kernelPackages.nvidia_x11 ]; };
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vesa = { modules = [ xorg.xf86videovesa ]; };
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vga = { modules = [ xorg.xf86videovga ]; };
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sis = { modules = [ xorg.xf86videosis ]; };
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i810 = { modules = [ xorg.xf86videoi810 ]; };
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intel = { modules = [ xorg.xf86videointel ]; };
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nv = { modules = [ xorg.xf86videonv ]; };
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ati = { modules = [ xorg.xf86videoati ]; };
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openchrome = { modules = [ xorg.xf86videoopenchrome ]; };
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cirrus = { modules = [ xorg.xf86videocirrus ]; };
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vmware = { modules = [ xorg.xf86videovmware ]; };
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};
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videoDriver = cfg.videoDriver;
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videoDriverInfo = attrByPath [videoDriver] (throw "unknown video driver: `${videoDriver}'") knownVideoDrivers;
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fontsForXServer =
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config.fonts.fonts ++
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# We don't want these fonts in fonts.conf, because then modern,
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# fontconfig-based applications will get horrible bitmapped
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# Helvetica fonts. It's better to get a substitution (like Nimbus
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# Sans) than that horror. But we do need the Adobe fonts for some
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# old non-fontconfig applications. (Possibly this could be done
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# better using a fontconfig rule.)
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[ pkgs.xorg.fontadobe100dpi
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pkgs.xorg.fontadobe75dpi
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];
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configFile = pkgs.stdenv.mkDerivation {
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name = "xserver.conf";
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xfs = optionalString (cfg.useXFS != false)
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''FontPath "${toString cfg.useXFS}"'';
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inherit (cfg) config;
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buildCommand =
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''
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echo 'Section "Files"' >> $out
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echo $xfs >> $out
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for i in ${toString fontsForXServer}; do
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if test "''${i:0:''${#NIX_STORE}}" == "$NIX_STORE"; then
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for j in $(find $i -name fonts.dir); do
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echo " FontPath \"$(dirname $j)\"" >> $out
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done
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fi
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done
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for i in $(find ${toString cfg.modules} -type d); do
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if test $(echo $i/*.so* | wc -w) -ne 0; then
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echo " ModulePath \"$i\"" >> $out
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fi
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done
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echo 'EndSection' >> $out
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echo "$config" >> $out
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''; # */
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};
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halConfigFiles = singleton (pkgs.writeTextFile
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{ name = "hal-policy-keymap";
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destination = "/share/hal/fdi/policy/30-keymap.fdi";
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text =
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''
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<?xml version="1.0" encoding="ISO-8859-1"?>
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<deviceinfo version="0.2">
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<device>
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<match key="info.capabilities" contains="input.keymap">
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<append key="info.callouts.add" type="strlist">hal-setup-keymap</append>
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</match>
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<match key="info.capabilities" contains="input.keys">
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<merge key="input.x11_options.XkbRules" type="string">base</merge>
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<merge key="input.x11_options.XkbModel" type="string">${cfg.xkbModel}</merge>
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<merge key="input.x11_options.XkbLayout" type="string">${cfg.layout}</merge>
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<append key="input.x11_options.XkbOptions" type="strlist">${cfg.xkbOptions}</append>
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</match>
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</device>
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</deviceinfo>
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'';
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});
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in
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{
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imports =
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[ ./display-managers/default.nix
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./window-managers/default.nix
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./desktop-managers/default.nix
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];
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###### interface
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options = {
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services.xserver = {
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enable = mkOption {
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default = false;
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description = ''
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Whether to enable the X server.
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'';
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};
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autorun = mkOption {
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default = true;
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description = ''
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Whether to start the X server automatically.
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'';
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};
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exportConfiguration = mkOption {
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default = false;
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description = ''
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Whether to symlink the X server configuration under
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<filename>/etc/X11/xorg.conf</filename>.
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'';
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};
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enableTCP = mkOption {
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default = false;
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description = ''
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Whether to allow the X server to accept TCP connections.
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'';
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};
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modules = mkOption {
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default = [];
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example = [ pkgs.linuxwacom ];
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description = "Packages to be added to the module search path of the X server.";
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};
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resolutions = mkOption {
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default = [ {x = 1024; y = 768;} {x = 800; y = 600;} {x = 640; y = 480;} ];
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description = ''
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The screen resolutions for the X server. The first element is the default resolution.
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'';
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};
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videoDriver = mkOption {
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default = "vesa";
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example = "i810";
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description = ''
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The name of the video driver for your graphics card.
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'';
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};
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driSupport = mkOption {
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default = true;
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description = ''
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Whether to enable accelerated OpenGL rendering through the
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Direct Rendering Interface (DRI).
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'';
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};
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startSSHAgent = mkOption {
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default = true;
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description = ''
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Whether to start the SSH agent when you log in. The SSH agent
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remembers private keys for you so that you don't have to type in
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passphrases every time you make an SSH connection. Use
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<command>ssh-add</command> to add a key to the agent.
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'';
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};
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isClone = mkOption {
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default = true;
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example = false;
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description = ''
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Whether to enable the X server clone mode for dual-head.
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'';
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};
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layout = mkOption {
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default = "us";
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description = ''
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Keyboard layout.
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'';
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};
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xkbModel = mkOption {
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default = "pc104";
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example = "presario";
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description = ''
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Keyboard model.
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'';
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};
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xkbOptions = mkOption {
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default = "";
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example = "grp:caps_toggle, grp_led:scroll";
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description = ''
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X keyboard options; layout switching goes here.
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'';
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};
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config = mkOption {
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description = ''
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The contents of the configuration file of the X server
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(<filename>xorg.conf</filename>).
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'';
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};
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deviceSection = mkOption {
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default = "";
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example = "VideoRAM 131072";
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description = "Contents of the first Device section of the X server configuration file.";
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};
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monitorSection = mkOption {
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default = "";
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example = "HorizSync 28-49";
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description = "Contents of the first Monitor section of the X server configuration file.";
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};
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moduleSection = mkOption {
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default = "";
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example =
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''
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SubSection "extmod"
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EndSubsection
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'';
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description = "Contents of the Module section of the X server configuration file.";
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};
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serverLayoutSection = mkOption {
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default = "";
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example =
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''
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Option "AIGLX" "true"
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'';
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description = "Contents of the ServerLayout section of the X server configuration file.";
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};
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extraDisplaySettings = mkOption {
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default = "";
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example = "Virtual 2048 2048";
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description = "Lines to be added to every Display subsection of the Screen section.";
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};
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defaultDepth = mkOption {
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default = 24;
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example = 8;
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description = "Default colour depth.";
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};
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useXFS = mkOption {
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default = false;
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example = "unix/:7100";
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description = "Determines how to connect to the X Font Server.";
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};
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tty = mkOption {
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default = 7;
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example = 9;
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description = "Virtual console for the X server.";
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};
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display = mkOption {
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default = 0;
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example = 1;
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description = "Display number for the X server.";
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};
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virtualScreen = mkOption {
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default = null;
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example = { x = 2048; y = 2048; };
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description = ''
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Virtual screen size for Xrandr.
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'';
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};
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};
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environment.x11Packages = mkOption {
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default = [];
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type = types.list types.package;
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description = ''
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List of packages added to the system when the X server is
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activated (<option>services.xserver.enable</option>).
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'';
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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assertions = singleton
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{ assertion = config.services.hal.enable == true;
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message = "The X server needs HAL running. Set services.hal.enable to true";
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};
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boot.extraModulePackages =
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optional (cfg.videoDriver == "nvidia") kernelPackages.nvidia_x11;
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environment.etc = optionals cfg.exportConfiguration
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[ { source = "${configFile}";
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target = "X11/xorg.conf";
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}
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# -xkbdir command line option does not seems to be passed to xkbcomp.
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{ source = "${pkgs.xkeyboard_config}/etc/X11/xkb";
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target = "X11/xkb";
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}
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];
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environment.x11Packages =
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[ xorg.xorgserver
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xorg.xrandr
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xorg.xrdb
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xorg.setxkbmap
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xorg.iceauth # required for KDE applications (it's called by dcopserver)
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xorg.xsetroot
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xorg.xprop
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]
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++ optional (videoDriver == "nvidia") kernelPackages.nvidia_x11;
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environment.systemPackages = config.environment.x11Packages;
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services.hal.packages = halConfigFiles;
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jobs = singleton
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{ name = "xserver";
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startOn = if cfg.autorun then "hal" else "never";
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environment =
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{ FONTCONFIG_FILE = "/etc/fonts/fonts.conf"; # !!! cleanup
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XKB_BINDIR = "${xorg.xkbcomp}/bin"; # Needed for the Xkb extension.
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} // optionalAttrs (videoDriver != "nvidia") {
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XORG_DRI_DRIVER_PATH = "${pkgs.mesa}/lib/dri";
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} // optionalAttrs (videoDriver == "nvidia") {
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LD_LIBRARY_PATH = "${xorg.libX11}/lib:${xorg.libXext}/lib:${kernelPackages.nvidia_x11}/lib";
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} // cfg.displayManager.job.environment;
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preStart =
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''
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# Ugly hack: wait until udev has started since the X server
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# needs various devices. This would more properly be
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# expressed as an Upstart dependency, but AFAIK in "start
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# on" we can't express a logical AND.
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while ! initctl status udev 2>&1 | grep -q running; do
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sleep 1
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done
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rm -f /var/run/opengl-driver
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${if videoDriver == "nvidia"
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then ''
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ln -sf ${kernelPackages.nvidia_x11} /var/run/opengl-driver
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''
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else if cfg.driSupport
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then "ln -sf ${pkgs.mesa} /var/run/opengl-driver"
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else ""
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}
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${cfg.displayManager.job.preStart}
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rm -f /tmp/.X0-lock
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'';
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exec = "${cfg.displayManager.job.execCmd}";
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};
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services.xserver.displayManager.xserverArgs =
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[ "-ac"
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"-logverbose"
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"-verbose"
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"-terminate"
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"-logfile" "/var/log/X.${toString cfg.display}.log"
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"-config ${configFile}"
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":${toString cfg.display}" "vt${toString cfg.tty}"
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"-xkbdir" "${pkgs.xkeyboard_config}/etc/X11/xkb"
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] ++ optional (!cfg.enableTCP) "-nolisten tcp";
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services.xserver.modules = videoDriverInfo.modules
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++ [ xorg.xorgserver xorg.xf86inputevdev ];
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services.xserver.config =
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''
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Section "ServerFlags"
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Option "AllowMouseOpenFail" "on"
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EndSection
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Section "Module"
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${cfg.moduleSection}
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EndSection
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Section "Monitor"
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${cfg.monitorSection}
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EndSection
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Section "Device"
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${cfg.deviceSection}
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EndSection
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Section "ServerLayout"
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${cfg.serverLayoutSection}
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EndSection
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Section "Screen"
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Identifier "Screen[0]"
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Device "Device[0]"
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Monitor "Monitor[0]"
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${optionalString (cfg.defaultDepth != 0) ''
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DefaultDepth ${toString cfg.defaultDepth}
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''}
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${optionalString (cfg.videoDriver == "nvidia") ''
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Option "RandRRotation" "on"
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''}
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${
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let
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f = depth:
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''
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SubSection "Display"
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Depth ${toString depth}
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Modes ${concatMapStrings (res: ''"${toString res.x}x${toString res.y}"'') cfg.resolutions}
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${cfg.extraDisplaySettings}
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${optionalString (cfg.virtualScreen != null)
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"Virtual ${toString cfg.virtualScreen.x} ${toString cfg.virtualScreen.y}"}
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EndSubSection
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'';
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in concatMapStrings f [8 16 24]
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}
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EndSection
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Section "Extensions"
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${optionalString (cfg.videoDriver == "nvidia" || cfg.videoDriver == "i810" || cfg.videoDriver == "ati" || cfg.videoDriver == "radeonhd") ''
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Option "Composite" "Enable"
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''}
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EndSection
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Section "DRI"
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Mode 0666 # !!! FIX THIS!
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EndSection
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'';
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services.xserver.monitorSection =
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''
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Identifier "Monitor[0]"
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'';
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services.xserver.deviceSection =
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''
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Identifier "Device[0]"
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Driver "${cfg.videoDriver}"
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# !!! Is the "Clone" option still useful?
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Option "Clone" "${if cfg.isClone then "on" else "off"}"
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'';
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services.xserver.serverLayoutSection =
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''
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Identifier "Layout[all]"
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Screen "Screen[0]"
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'';
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};
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}
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