liminix/pkgs/s6-init-files/default.nix

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{
execline
, s6
, s6-linux-init
, s6-rc
, pseudofile
, lib
, stdenvNoCC
, busybox
} :
let
initscripts = stdenvNoCC.mkDerivation {
name = "s6-scripts";
src = ./scripts;
phases = ["unpackPhase" "installPhase" ];
buildInputs = [busybox];
installPhase = ''
mkdir $out
cp -r $src $out/scripts
chmod -R +w $out
patchShebangs $out/scripts
'';
};
dir = contents: { type = "d"; inherit contents; };
symlink = target: { type = "s"; inherit target; };
hpr = arg: "#!${execline}/bin/execlineb -S0\n${s6-linux-init}/bin/s6-linux-init-hpr ${arg} \$@";
bin = dir {
shutdown = symlink "${s6-linux-init}/bin/s6-linux-init-shutdown";
telinit = symlink "${s6-linux-init}/bin/s6-linux-init-telinit";
reboot = { type="f"; file = hpr "-r"; mode="0755"; };
poweroff = { type="f"; file = hpr "-p"; mode="0755"; };
halt = { type="f"; file = hpr "-h"; mode="0755"; };
init = {
type="f"; mode="0755";
file = "#!${execline}/bin/execlineb -S0\n${s6-linux-init}/bin/s6-linux-init -c /etc/s6-linux-init/current -m 0022 -p ${lib.makeBinPath [busybox execline s6-linux-init s6-rc]}:/usr/bin:/bin -d /dev -- \"\\$@\"";
};
};
scripts = symlink "${initscripts}/scripts";
env = dir {};
run-image = dir {
service = dir {
s6-linux-init-runleveld = dir {
notification-fd = { file = "3"; };
run = {
file = ''
#!${execline}/bin/execlineb -P
${execline}/bin/fdmove -c 2 1
${execline}/bin/fdmove 1 3
${s6}/bin/s6-ipcserver -1 -a 0700 -c 1 -- s
${s6}/bin/s6-sudod -dt30000 -- "/etc/s6-linux-init/current"/scripts/runlevel
'';
mode = "0755";
};
};
s6-linux-init-shutdownd = dir {
fifo = {
type = "i";
subtype = "f";
mode = "0600";
};
run = {
file = ''
#!${execline}/bin/execlineb -P
${s6-linux-init}/bin/s6-linux-init-shutdownd -c "/etc/s6-linux-init/current" -g 3000
'';
mode = "0755";
};
};
s6-svscan-log = dir {
fifo = {
type = "i";
subtype = "f";
mode = "0600";
};
notification-fd = { file = "3"; };
run = {
file = ''
#!${execline}/bin/execlineb -P
${execline}/bin/redirfd -w 1 /dev/null
${execline}/bin/redirfd -rnb 0 fifo
${s6}/bin/s6-log -bpd3 -- t /run/uncaught-logs
'';
mode = "0755";
};
};
getty = dir {
run = {
file = ''
#!${execline}/bin/execlineb -P
${busybox}/bin/getty -l ${busybox}/bin/login 38400 /dev/console
'';
mode = "0755";
};
};
".s6-svscan" =
let
quit = message: ''
#!${execline}/bin/execlineb -P
${execline}/bin/redirfd -w 2 /dev/console
${execline}/bin/fdmove -c 1 2
${execline}/bin/foreground { ${s6-linux-init}/bin/s6-linux-init-echo -- ${message} }
${s6-linux-init}/bin/s6-linux-init-hpr -fr
'';
shutdown = action: ''
#!${execline}/bin/execlineb -P
${s6-linux-init}/bin/s6-linux-init-hpr -a #{action} -- now
'';
empty = "#!${execline}/bin/execlineb -P\n";
in dir {
crash = {
file = quit "s6-svscan crashed. Rebooting.";
mode = "0755";
};
finish = {
file = quit "s6-svscan exited. Rebooting.";
mode = "0755";
};
SIGINT = {
file = shutdown "-r";
mode = "0755";
};
SIGPWR = {
file = shutdown "-p";
mode = "0755";
};
SIGQUIT = {
file = empty;
mode = "0755";
};
SIGTERM = {
file = empty;
mode = "0755";
};
SIGUSR1 = {
file = shutdown "-p";
mode = "0755";
};
SIGUSR2 = {
file = shutdown "-h";
mode = "0755";
};
SIGWINCH = {
file = empty;
mode = "0755";
};
};
};
uncaught-logs = (dir {}) // {mode = "2750";};
};
structure = { etc = dir { s6-linux-init = dir { current = dir {
inherit bin scripts env run-image;
};};};};
in pseudofile "pseudo.s6-init" structure