Files
Nomarchy/modules/nixos/plymouth.nix
Bernardo Magri a640de4fd4 fix(theme): #66 fail-closed theme-state errors at mkFlake/read
Missing, empty, or non-object theme-state.json now throws a short
message pointing at the template and `nomarchy-theme-sync validate`
instead of a raw readFile/fromJSON stack. Shared reader:
modules/theme-state-read.nix — wired in theme.nix, plymouth/timezone/
hardware, and lib.mkFlake (seq-forced early gate). Field-level schema
in theme.nix kept; unknown border roles still fail there; resolveColor
no longer falls through on missing palette keys. Defaults added for
settings.displayProfile / displayProfileAuto.

Verified: V0 nix flake check --no-build; negative evals (missing,
empty, [], bad border role); good-path template mode + displayProfile
defaults.
2026-07-10 09:39:10 +01:00

112 lines
4.2 KiB
Nix
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
# Plymouth boot splash — Nomarchy-branded (ported from the legacy
# iteration), background tinted from the same theme-state.json that
# drives the desktop (nomarchy.system.stateFile, wired automatically by
# lib.mkFlake). One caveat by design: theme switches are Home
# Manager-only and never touch the initrd, so the splash follows the
# theme as of the last SYSTEM rebuild (`sys-update`), not the last
# `nomarchy-theme-sync apply`.
{ config, lib, pkgs, ... }:
let
cfg = config.nomarchy.system;
state =
if cfg.stateFile != null
then import ../theme-state-read.nix { inherit lib; } cfg.stateFile
else { };
colorOf = key: fallback: lib.removePrefix "#" ((state.colors or { }).${key} or fallback);
# Fallbacks match the distro default theme (Boreal) when stateFile is null.
base = colorOf "base" "#21272F";
# Splash elements are recolored from the palette so they read on any
# base, light or dark: foreground glyphs → text, field/track boxes →
# surface (raised from base in both polarities), the progress fill →
# accent. The shipped art is a fixed navy that vanished on dark themes.
text = colorOf "text" "#D3DAE0";
surface = colorOf "surface" "#303A46";
accent = colorOf "accent" "#B79BE8";
magick = lib.getExe' pkgs.imagemagick "magick";
# Plymouth's Window.SetBackgroundTopColor takes three floats in
# 0.01.0; the .plymouth metadata's ConsoleLogBackgroundColor takes a
# 0xRRGGBB hex. Nix has no float math: multiply, integer-divide, pad.
byteToFloat = n:
let
thousandths = (n * 1000) / 255;
s = toString thousandths;
padded =
if lib.stringLength s == 1 then "00${s}"
else if lib.stringLength s == 2 then "0${s}"
else s;
in "0.${padded}";
channel = off: byteToFloat (lib.fromHexString (lib.substring off 2 base));
nomarchy-plymouth = pkgs.stdenv.mkDerivation {
pname = "nomarchy-plymouth";
version = "1.0";
src = ./plymouth;
nativeBuildInputs = [ pkgs.imagemagick ];
installPhase = ''
themedir=$out/share/plymouth/themes/nomarchy
mkdir -p "$themedir"
cp * "$themedir/"
# Recolor the splash art from the palette (flat fill, alpha kept) so
# it reads on any base instead of the shipped fixed navy.
recolor() { ${magick} "$themedir/$1" -fill "#$2" -colorize 100 "$themedir/$1"; }
recolor logo.png ${text} # centre monogram
recolor lock.png ${text} # password-prompt padlock
recolor bullet.png ${text} # password dots
recolor entry.png ${surface} # password field box
recolor progress_box.png ${surface} # progress track
recolor progress_bar.png ${accent} # progress fill
# Point the .plymouth metadata into the store
sed -i "s|/usr/share/plymouth/themes/nomarchy|$themedir|g" \
"$themedir/nomarchy.plymouth"
# Bake the theme's base color: RGB floats for the script's
# Window.SetBackground* calls, 0xRRGGBB for ConsoleLogBackground.
sed -i \
-e 's|@BG_R@|${channel 0}|g' \
-e 's|@BG_G@|${channel 2}|g' \
-e 's|@BG_B@|${channel 4}|g' \
"$themedir/nomarchy.script"
sed -i 's|@BG_HEX@|${base}|g' \
"$themedir/nomarchy.plymouth"
'';
};
in
{
config = lib.mkIf cfg.plymouth.enable {
# The systemd initrd (boot.initrd.systemd.enable) and console.earlySetup
# that Plymouth needs are now distro-wide defaults in ./default.nix
# (they also carry the keyboard layout to the LUKS prompt), so the
# splash no longer has to turn them on. Just keep the console quiet
# around the splash.
boot.initrd.verbose = lib.mkDefault false;
boot.consoleLogLevel = lib.mkDefault 0;
boot.plymouth = {
enable = lib.mkDefault true;
themePackages = lib.mkDefault [ nomarchy-plymouth ];
theme = lib.mkDefault "nomarchy";
};
# Not mkDefault: kernelParams is a list other modules add to at
# normal priority — a mkDefault def would be dropped entirely,
# losing the quiet/splash boot. These merge with the rest.
boot.kernelParams = [
"quiet"
"splash"
"loglevel=3"
"rd.systemd.show_status=false"
"rd.udev.log_level=3"
"udev.log_priority=3"
"boot.shell_on_fail"
];
};
}