liminix/pkgs/liminix-tools/services/default.nix
2022-09-26 12:26:54 +01:00

68 lines
1.8 KiB
Nix

{
stdenvNoCC
, s6-rc
, lib
, busybox
, callPackage
, writeAshScript
}:
let
inherit (builtins) concatStringsSep;
output = service: name: "/run/service-state/${service.name}/${name}";
longrun = {
name
, run
, outputs ? []
, notification-fd ? null
, dependencies ? []
} @ args: stdenvNoCC.mkDerivation {
name = "${name}.service";
serviceType = "longrun";
buildInputs = dependencies;
dependencies = builtins.map (d: d.name) dependencies;
shell = "${busybox}/bin/sh";
inherit run;
notificationFd = notification-fd;
builder = ./builder.sh;
};
oneshot = {
name
, up
, down
, outputs ? []
, dependencies ? []
, ...
} @ args: stdenvNoCC.mkDerivation {
# stdenvNoCC is to avoid generating derivations with names
# like foo.service-mips-linux-musl
name = "${name}.service";
serviceType = "oneshot";
# does this suffice to make sure dependencies are included
# even though the built output has no references to their
# store directories?
buildInputs = dependencies;
shell = "${busybox}/bin/sh";
# up and down for oneshots are pathnames not scripts
up = writeAshScript "${name}-up" {} up;
down = writeAshScript "${name}-down" {} down;
dependencies = builtins.map (d: d.name) dependencies;
builder = ./builder.sh;
};
target = {
name
, contents ? []
, dependencies ? []
, ...
}: stdenvNoCC.mkDerivation {
inherit name;
serviceType = "bundle";
contents = builtins.map (d: d.name) contents;
buildInputs = dependencies ++ contents;
dependencies = builtins.map (d: d.name) dependencies;
shell = "${busybox}/bin/sh";
builder = ./builder.sh;
};
bundle = { name, ... } @args : target (args // { name = "${name}.bundle";});
in {
inherit target bundle oneshot longrun output;
}