126 lines
3.8 KiB
Nix
126 lines
3.8 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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makeColor = n: value: "COLOR_${toString n}=${value}";
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makeColorCS =
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let positions = [ "0" "1" "2" "3" "4" "5" "6" "7" "8" "9" "A" "B" "C" "D" "E" "F" ];
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in n: value: "\\033]P${elemAt positions (n - 1)}${value}";
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colors = concatImapStringsSep "\n" makeColor config.i18n.consoleColors;
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isUnicode = hasSuffix "UTF-8" (toUpper config.i18n.defaultLocale);
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optimizedKeymap = pkgs.runCommand "keymap" {
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nativeBuildInputs = [ pkgs.buildPackages.kbd ];
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LOADKEYS_KEYMAP_PATH = "${kbdEnv}/share/keymaps/**";
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} ''
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loadkeys -b ${optionalString isUnicode "-u"} "${config.i18n.consoleKeyMap}" > $out
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'';
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# Sadly, systemd-vconsole-setup doesn't support binary keymaps.
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vconsoleConf = pkgs.writeText "vconsole.conf" ''
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KEYMAP=${config.i18n.consoleKeyMap}
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FONT=${config.i18n.consoleFont}
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${colors}
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'';
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kbdEnv = pkgs.buildEnv {
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name = "kbd-env";
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paths = [ pkgs.kbd ] ++ config.i18n.consolePackages;
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pathsToLink = [ "/share/consolefonts" "/share/consoletrans" "/share/keymaps" "/share/unimaps" ];
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};
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setVconsole = !config.boot.isContainer;
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in
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{
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###### interface
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options = {
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# most options are defined in i18n.nix
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# FIXME: still needed?
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boot.extraTTYs = mkOption {
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default = [];
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type = types.listOf types.str;
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example = ["tty8" "tty9"];
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description = ''
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Tty (virtual console) devices, in addition to the consoles on
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which mingetty and syslogd run, that must be initialised.
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Only useful if you have some program that you want to run on
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some fixed console. For example, the NixOS installation CD
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opens the manual in a web browser on console 7, so it sets
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<option>boot.extraTTYs</option> to <literal>["tty7"]</literal>.
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'';
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};
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boot.earlyVconsoleSetup = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Enable setting font as early as possible (in initrd).
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'';
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};
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};
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###### implementation
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config = mkMerge [
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(mkIf (!setVconsole) {
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systemd.services."systemd-vconsole-setup".enable = false;
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})
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(mkIf setVconsole (mkMerge [
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{ environment.systemPackages = [ pkgs.kbd ];
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# Let systemd-vconsole-setup.service do the work of setting up the
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# virtual consoles.
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environment.etc."vconsole.conf".source = vconsoleConf;
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# Provide kbd with additional packages.
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environment.etc."kbd".source = "${kbdEnv}/share";
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boot.initrd.preLVMCommands = mkBefore ''
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kbd_mode ${if isUnicode then "-u" else "-a"} -C /dev/console
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printf "\033%%${if isUnicode then "G" else "@"}" >> /dev/console
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loadkmap < ${optimizedKeymap}
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${optionalString config.boot.earlyVconsoleSetup ''
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setfont -C /dev/console $extraUtils/share/consolefonts/font.psf
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''}
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${concatImapStringsSep "\n" (n: color: ''
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printf "${makeColorCS n color}" >> /dev/console
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'') config.i18n.consoleColors}
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'';
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systemd.services."systemd-vconsole-setup" =
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{ before = [ "display-manager.service" ];
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after = [ "systemd-udev-settle.service" ];
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restartTriggers = [ vconsoleConf kbdEnv ];
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};
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}
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(mkIf config.boot.earlyVconsoleSetup {
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boot.initrd.extraUtilsCommands = ''
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mkdir -p $out/share/consolefonts
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${if substring 0 1 config.i18n.consoleFont == "/" then ''
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font="${config.i18n.consoleFont}"
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'' else ''
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font="$(echo ${kbdEnv}/share/consolefonts/${config.i18n.consoleFont}.*)"
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''}
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if [[ $font == *.gz ]]; then
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gzip -cd $font > $out/share/consolefonts/font.psf
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else
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cp -L $font $out/share/consolefonts/font.psf
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fi
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'';
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})
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]))
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];
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}
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