nixpkgs-suyu/nixos/modules/system/boot/plymouth.nix
pennae 2d564521c0 treewide: add literalDocBook text to options with complex defaults
some options have default that are best described in prose, such as
defaults that depend on the system stateVersion, defaults that are
derivations specific to the surrounding context, or those where the
expression is much longer and harder to understand than a simple text
snippet.
2021-12-09 01:38:24 +01:00

237 lines
7.8 KiB
Nix

{ config, lib, options, pkgs, ... }:
with lib;
let
inherit (pkgs) plymouth nixos-icons;
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.extraUtilsCommands = ''
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 = ''
$out/bin/plymouthd --help >/dev/null
$out/bin/plymouth --help >/dev/null
'';
boot.initrd.extraUdevRulesCommands = ''
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 = 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 $extraUtils/etc/fonts /etc/fonts
plymouthd --mode=boot --pid-file=/run/plymouth/pid --attach-to-session
plymouth show-splash
'';
boot.initrd.postMountCommands = ''
plymouth update-root-fs --new-root-dir="$targetRoot"
'';
# `mkBefore` to ensure that any custom prompts would be visible.
boot.initrd.preFailCommands = mkBefore ''
plymouth quit --wait
'';
};
}