148 lines
4.4 KiB
Nix
148 lines
4.4 KiB
Nix
{ config, pkgs, ... }:
|
|
|
|
with pkgs.lib;
|
|
|
|
let
|
|
|
|
inherit (pkgs) stdenv;
|
|
|
|
kernelPackages = config.boot.kernelPackages;
|
|
splashutils = kernelPackages.splashutils;
|
|
requiredTTYs = config.requiredTTYs;
|
|
|
|
backgrounds =
|
|
let
|
|
|
|
specificThemes = config.services.ttyBackgrounds.specificThemes;
|
|
|
|
overridenTTYs = map (x: x.tty) specificThemes;
|
|
|
|
# Use the default theme for all the mingetty ttys and for the
|
|
# syslog tty, except those for which a specific theme is
|
|
# specified.
|
|
defaultTTYs =
|
|
filter (x: !(elem x overridenTTYs)) requiredTTYs;
|
|
|
|
in
|
|
(map (tty: { inherit tty; }) defaultTTYs) ++ specificThemes;
|
|
|
|
themesUnpacked = stdenv.mkDerivation {
|
|
name = "splash-themes";
|
|
builder = ./tty-backgrounds-combine.sh;
|
|
default = unpackTheme config.services.ttyBackgrounds.defaultTheme;
|
|
# !!! Should use XML here.
|
|
ttys = map (x: x.tty) backgrounds;
|
|
themes = map (x: if x ? theme then unpackTheme x.theme else "default") backgrounds;
|
|
};
|
|
|
|
unpackTheme = theme: import ../../lib/unpack-theme.nix {
|
|
inherit stdenv theme;
|
|
};
|
|
|
|
in
|
|
|
|
{
|
|
|
|
###### interface
|
|
|
|
options = {
|
|
|
|
services.ttyBackgrounds = {
|
|
|
|
enable = mkOption {
|
|
default = true;
|
|
description = ''
|
|
Whether to enable graphical backgrounds for the virtual consoles.
|
|
'';
|
|
};
|
|
|
|
defaultTheme = mkOption {
|
|
default = pkgs.fetchurl {
|
|
#url = http://www.bootsplash.de/files/themes/Theme-BabyTux.tar.bz2;
|
|
url = mirror://gentoo/distfiles/Theme-BabyTux.tar.bz2;
|
|
md5 = "a6d89d1c1cff3b6a08e2f526f2eab4e0";
|
|
};
|
|
description = ''
|
|
The default theme for the virtual consoles. Themes can be found
|
|
at <link xlink:href='http://www.bootsplash.de/' />.
|
|
'';
|
|
};
|
|
|
|
specificThemes = mkOption {
|
|
default = [ ];
|
|
description = ''
|
|
This option overrides the theme for specific virtual consoles.
|
|
'';
|
|
};
|
|
|
|
};
|
|
|
|
};
|
|
|
|
|
|
###### implementation
|
|
|
|
config = mkIf config.services.ttyBackgrounds.enable (
|
|
mkAssert (splashutils != null) "
|
|
The kernelPackages does not provide splashutils, as required by ttyBackgrounds.
|
|
Either provide kernelPackages with splashutils, or disable ttyBackgrounds.
|
|
" {
|
|
|
|
services.ttyBackgrounds.specificThemes = singleton
|
|
{ tty = config.services.syslogd.tty;
|
|
theme = pkgs.themes "theme-gnu";
|
|
};
|
|
|
|
environment.etc = singleton
|
|
{ source = themesUnpacked;
|
|
target = "splash";
|
|
};
|
|
|
|
jobs.ttyBackgrounds =
|
|
{ name = "tty-backgrounds";
|
|
|
|
startOn = "started udev";
|
|
|
|
# Don't stop tty-backgrounds during shutdown; it's not needed,
|
|
# and it just causes intrusive blanking of the screen.
|
|
stopOn = "";
|
|
|
|
preStart =
|
|
''
|
|
# Critical: tell the kernel where to find splash_helper. It calls
|
|
# this program every time we switch between consoles.
|
|
helperProcFile=${splashutils.helperProcFile}
|
|
if test -e /proc/sys/fbcondecor; then helperProcFile=/proc/sys/fbcondecor; fi
|
|
echo ${splashutils}/${splashutils.helperName} > $helperProcFile
|
|
|
|
# For each console...
|
|
for tty in ${toString (map (x: x.tty) backgrounds)}; do
|
|
# Make sure that the console exists.
|
|
echo -n "" > /dev/$tty
|
|
|
|
# Set the theme as determined by tty-backgrounds-combine.sh
|
|
# above. Note that splashutils needs a TTY number
|
|
# instead of a device name, hence the ''${tty:3}.
|
|
theme=$(readlink ${themesUnpacked}/$tty)
|
|
prevTheme=$(${splashutils}/${splashutils.controlName} --tty ''${tty:3} -c getcfg |
|
|
sed 's/theme: *\(.*\)/\1/;t;d' || true)
|
|
if [ "$theme" != "$prevTheme" ]; then
|
|
${splashutils}/${splashutils.controlName} --tty ''${tty:3} -c setcfg -t $theme || true
|
|
fi
|
|
${splashutils}/${splashutils.controlName} --tty ''${tty:3} -c setpic -t $theme || true
|
|
${splashutils}/${splashutils.controlName} --tty ''${tty:3} -c on || true
|
|
done
|
|
'';
|
|
|
|
postStop =
|
|
''
|
|
# Disable the theme on each console.
|
|
for tty in ${toString (map (x: x.tty) backgrounds)}; do
|
|
${splashutils}/${splashutils.controlName} --tty ''${tty:3} -c off || true
|
|
done
|
|
'';
|
|
};
|
|
|
|
});
|
|
|
|
}
|