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nixpkgs/nixos/modules/system/boot/plymouth.nix
2022-04-24 21:47:49 +01:00

322 lines
12 KiB
Nix

{ config, lib, options, pkgs, ... }:
with lib;
let
inherit (pkgs) nixos-icons;
plymouth = pkgs.plymouth.override {
systemd = config.boot.initrd.systemd.package;
};
cfg = config.boot.plymouth;
opt = options.boot.plymouth;
nixosBreezePlymouth = pkgs.plasma5Packages.breeze-plymouth.override {
logoFile = cfg.logo;
logoName = "nixos";
osName = "NixOS";
osVersion = config.system.nixos.release;
};
plymouthLogos = pkgs.runCommand "plymouth-logos" { inherit (cfg) logo; } ''
mkdir -p $out
# For themes that are compiled with PLYMOUTH_LOGO_FILE
mkdir -p $out/etc/plymouth
ln -s $logo $out/etc/plymouth/logo.png
# Logo for bgrt theme
# Note this is technically an abuse of watermark for the bgrt theme
# See: https://gitlab.freedesktop.org/plymouth/plymouth/-/issues/95#note_813768
mkdir -p $out/share/plymouth/themes/spinner
ln -s $logo $out/share/plymouth/themes/spinner/watermark.png
# Logo for spinfinity theme
# See: https://gitlab.freedesktop.org/plymouth/plymouth/-/issues/106
mkdir -p $out/share/plymouth/themes/spinfinity
ln -s $logo $out/share/plymouth/themes/spinfinity/header-image.png
'';
themesEnv = pkgs.buildEnv {
name = "plymouth-themes";
paths = [
plymouth
plymouthLogos
] ++ cfg.themePackages;
};
configFile = pkgs.writeText "plymouthd.conf" ''
[Daemon]
ShowDelay=0
DeviceTimeout=8
Theme=${cfg.theme}
${cfg.extraConfig}
'';
in
{
options = {
boot.plymouth = {
enable = mkEnableOption "Plymouth boot splash screen";
font = mkOption {
default = "${pkgs.dejavu_fonts.minimal}/share/fonts/truetype/DejaVuSans.ttf";
defaultText = literalExpression ''"''${pkgs.dejavu_fonts.minimal}/share/fonts/truetype/DejaVuSans.ttf"'';
type = types.path;
description = ''
Font file made available for displaying text on the splash screen.
'';
};
themePackages = mkOption {
default = lib.optional (cfg.theme == "breeze") nixosBreezePlymouth;
defaultText = literalDocBook ''
A NixOS branded variant of the breeze theme when
<literal>config.${opt.theme} == "breeze"</literal>, otherwise
<literal>[ ]</literal>.
'';
type = types.listOf types.package;
description = ''
Extra theme packages for plymouth.
'';
};
theme = mkOption {
default = "bgrt";
type = types.str;
description = ''
Splash screen theme.
'';
};
logo = mkOption {
type = types.path;
# Dimensions are 48x48 to match GDM logo
default = "${nixos-icons}/share/icons/hicolor/48x48/apps/nix-snowflake-white.png";
defaultText = literalExpression ''pkgs.fetchurl {
url = "https://nixos.org/logo/nixos-hires.png";
sha256 = "1ivzgd7iz0i06y36p8m5w48fd8pjqwxhdaavc0pxs7w1g7mcy5si";
}'';
description = ''
Logo which is displayed on the splash screen.
'';
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = ''
Literal string to append to <literal>configFile</literal>
and the config file generated by the plymouth module.
'';
};
};
};
config = mkIf cfg.enable {
boot.kernelParams = [ "splash" ];
# To be discoverable by systemd.
environment.systemPackages = [ plymouth ];
environment.etc."plymouth/plymouthd.conf".source = configFile;
environment.etc."plymouth/plymouthd.defaults".source = "${plymouth}/share/plymouth/plymouthd.defaults";
environment.etc."plymouth/logo.png".source = cfg.logo;
environment.etc."plymouth/themes".source = "${themesEnv}/share/plymouth/themes";
# XXX: Needed because we supply a different set of plugins in initrd.
environment.etc."plymouth/plugins".source = "${plymouth}/lib/plymouth";
systemd.packages = [ plymouth ];
systemd.services.plymouth-kexec.wantedBy = [ "kexec.target" ];
systemd.services.plymouth-halt.wantedBy = [ "halt.target" ];
systemd.services.plymouth-quit-wait.wantedBy = [ "multi-user.target" ];
systemd.services.plymouth-quit.wantedBy = [ "multi-user.target" ];
systemd.services.plymouth-poweroff.wantedBy = [ "poweroff.target" ];
systemd.services.plymouth-reboot.wantedBy = [ "reboot.target" ];
systemd.services.plymouth-read-write.wantedBy = [ "sysinit.target" ];
systemd.services.systemd-ask-password-plymouth.wantedBy = [ "multi-user.target" ];
systemd.paths.systemd-ask-password-plymouth.wantedBy = [ "multi-user.target" ];
boot.initrd.systemd = {
extraBin.plymouth = "${plymouth}/bin/plymouth"; # for the recovery shell
storePaths = [
"${lib.getBin config.boot.initrd.systemd.package}/bin/systemd-tty-ask-password-agent"
"${plymouth}/bin/plymouthd"
"${plymouth}/sbin/plymouthd"
];
packages = [ plymouth ]; # systemd units
contents = {
# Files
"/etc/plymouth/plymouthd.conf".source = configFile;
"/etc/plymouth/plymouthd.defaults".source = "${plymouth}/share/plymouth/plymouthd.defaults";
"/etc/plymouth/logo.png".source = cfg.logo;
# Directories
"/etc/plymouth/plugins".source = pkgs.runCommand "plymouth-initrd-plugins" {} ''
# Check if the actual requested theme is here
if [[ ! -d ${themesEnv}/share/plymouth/themes/${cfg.theme} ]]; then
echo "The requested theme: ${cfg.theme} is not provided by any of the packages in boot.plymouth.themePackages"
exit 1
fi
moduleName="$(sed -n 's,ModuleName *= *,,p' ${themesEnv}/share/plymouth/themes/${cfg.theme}/${cfg.theme}.plymouth)"
mkdir -p $out/renderers
# module might come from a theme
cp ${themesEnv}/lib/plymouth/{text,details,label,$moduleName}.so $out
cp ${plymouth}/lib/plymouth/renderers/{drm,frame-buffer}.so $out/renderers
'';
"/etc/plymouth/themes".source = pkgs.runCommand "plymouth-initrd-themes" {} ''
# Check if the actual requested theme is here
if [[ ! -d ${themesEnv}/share/plymouth/themes/${cfg.theme} ]]; then
echo "The requested theme: ${cfg.theme} is not provided by any of the packages in boot.plymouth.themePackages"
exit 1
fi
mkdir $out
cp -r ${themesEnv}/share/plymouth/themes/${cfg.theme} $out
# Copy more themes if the theme depends on others
for theme in $(grep -hRo '/etc/plymouth/themes/.*$' ${themesEnv} | xargs -n1 basename); do
if [[ -d "${themesEnv}/theme" ]]; then
cp -r "${themesEnv}/theme" $out
fi
done
'';
# Fonts
"/etc/plymouth/fonts".source = pkgs.runCommand "plymouth-initrd-fonts" {} ''
mkdir -p $out
cp ${cfg.font} $out
'';
"/etc/fonts/fonts.conf".text = ''
<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "urn:fontconfig:fonts.dtd">
<fontconfig>
<dir>/etc/plymouth/fonts</dir>
</fontconfig>
'';
};
# Properly enable units. These are the units that arch copies
services = {
plymouth-halt.wantedBy = [ "halt.target" ];
plymouth-kexec.wantedBy = [ "kexec.target" ];
plymouth-poweroff.wantedBy = [ "poweroff.target" ];
plymouth-quit-wait.wantedBy = [ "multi-user.target" ];
plymouth-quit.wantedBy = [ "multi-user.target" ];
plymouth-read-write.wantedBy = [ "sysinit.target" ];
plymouth-reboot.wantedBy = [ "reboot.target" ];
plymouth-start.wantedBy = [ "initrd-switch-root.target" "sysinit.target" ];
plymouth-switch-root-initramfs.wantedBy = [ "halt.target" "kexec.target" "plymouth-switch-root-initramfs.service" "poweroff.target" "reboot.target" ];
plymouth-switch-root.wantedBy = [ "initrd-switch-root.target" ];
};
};
# Insert required udev rules. We take stage 2 systemd because the udev
# rules are only generated when building with logind.
boot.initrd.services.udev.packages = [ (pkgs.runCommand "initrd-plymouth-udev-rules" {} ''
mkdir -p $out/etc/udev/rules.d
cp ${config.systemd.package.out}/lib/udev/rules.d/{70-uaccess,71-seat}.rules $out/etc/udev/rules.d
sed -i '/loginctl/d' $out/etc/udev/rules.d/71-seat.rules
'') ];
boot.initrd.extraUtilsCommands = lib.mkIf (!config.boot.initrd.systemd.enable) ''
copy_bin_and_libs ${plymouth}/bin/plymouth
copy_bin_and_libs ${plymouth}/bin/plymouthd
# Check if the actual requested theme is here
if [[ ! -d ${themesEnv}/share/plymouth/themes/${cfg.theme} ]]; then
echo "The requested theme: ${cfg.theme} is not provided by any of the packages in boot.plymouth.themePackages"
exit 1
fi
moduleName="$(sed -n 's,ModuleName *= *,,p' ${themesEnv}/share/plymouth/themes/${cfg.theme}/${cfg.theme}.plymouth)"
mkdir -p $out/lib/plymouth/renderers
# module might come from a theme
cp ${themesEnv}/lib/plymouth/{text,details,label,$moduleName}.so $out/lib/plymouth
cp ${plymouth}/lib/plymouth/renderers/{drm,frame-buffer}.so $out/lib/plymouth/renderers
mkdir -p $out/share/plymouth/themes
cp ${plymouth}/share/plymouth/plymouthd.defaults $out/share/plymouth
# Copy themes into working directory for patching
mkdir themes
# Use -L to copy the directories proper, not the symlinks to them.
# Copy all themes because they're not large assets, and bgrt depends on the ImageDir of
# the spinner theme.
cp -r -L ${themesEnv}/share/plymouth/themes/* themes
# Patch out any attempted references to the theme or plymouth's themes directory
chmod -R +w themes
find themes -type f | while read file
do
sed -i "s,/nix/.*/share/plymouth/themes,$out/share/plymouth/themes,g" $file
done
# Install themes
cp -r themes/* $out/share/plymouth/themes
# Install logo
mkdir -p $out/etc/plymouth
cp -r -L ${themesEnv}/etc/plymouth $out
# Setup font
mkdir -p $out/share/fonts
cp ${cfg.font} $out/share/fonts
mkdir -p $out/etc/fonts
cat > $out/etc/fonts/fonts.conf <<EOF
<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "urn:fontconfig:fonts.dtd">
<fontconfig>
<dir>$out/share/fonts</dir>
</fontconfig>
EOF
'';
boot.initrd.extraUtilsCommandsTest = mkIf (!config.boot.initrd.enable) ''
$out/bin/plymouthd --help >/dev/null
$out/bin/plymouth --help >/dev/null
'';
boot.initrd.extraUdevRulesCommands = mkIf (!config.boot.initrd.enable) ''
cp ${config.systemd.package}/lib/udev/rules.d/{70-uaccess,71-seat}.rules $out
sed -i '/loginctl/d' $out/71-seat.rules
'';
# We use `mkAfter` to ensure that LUKS password prompt would be shown earlier than the splash screen.
boot.initrd.preLVMCommands = mkIf (!config.boot.initrd.enable) (mkAfter ''
mkdir -p /etc/plymouth
mkdir -p /run/plymouth
ln -s ${configFile} /etc/plymouth/plymouthd.conf
ln -s $extraUtils/share/plymouth/plymouthd.defaults /etc/plymouth/plymouthd.defaults
ln -s $extraUtils/share/plymouth/logo.png /etc/plymouth/logo.png
ln -s $extraUtils/share/plymouth/themes /etc/plymouth/themes
ln -s $extraUtils/lib/plymouth /etc/plymouth/plugins
ln -s $extraUtils/etc/fonts /etc/fonts
plymouthd --mode=boot --pid-file=/run/plymouth/pid --attach-to-session
plymouth show-splash
'');
boot.initrd.postMountCommands = mkIf (!config.boot.initrd.enable) ''
plymouth update-root-fs --new-root-dir="$targetRoot"
'';
# `mkBefore` to ensure that any custom prompts would be visible.
boot.initrd.preFailCommands = mkIf (!config.boot.initrd.enable) (mkBefore ''
plymouth quit --wait
'');
};
}