nixpkgs/test/upstart-jobs/tty-backgrounds.nix

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{stdenv, splashutils, backgrounds}:
rec {
name = "tty-backgrounds";
unpackTheme = theme: stdenv.mkDerivation {
name = "theme";
builder = ./unpack-theme.sh;
inherit theme;
};
themesUnpacked = stdenv.mkDerivation {
name = "splash-themes";
builder = ./tty-backgrounds-combine.sh;
# !!! Should use XML here.
ttys = map (x: x.tty) backgrounds;
themes = map (x: if x ? theme then (unpackTheme x.theme) else "default") backgrounds;
};
job = "
start on hardware-scan
script
rm -f /etc/splash
ln -s ${themesUnpacked} /etc/splash
# Critical: tell the kernel where to find splash_helper. It calls
# this program every time we switch between consoles.
echo ${splashutils}/bin/splash_helper > /proc/sys/kernel/fbsplash
# Set the theme for each console, as determined by
# tty-backgrounds-combine.sh above.
for tty in ${toString (map (x: x.tty) backgrounds)}; do
theme=$(readlink ${themesUnpacked}/$tty)
${splashutils}/bin/splash_util --tty $tty -c setcfg -t $theme || true
${splashutils}/bin/splash_util --tty $tty -c setpic -t $theme || true
${splashutils}/bin/splash_util --tty $tty -c on || true
done
end script
";
}