97 lines
2.7 KiB
Nix
97 lines
2.7 KiB
Nix
{pkgs, config, ...}:
|
|
|
|
let
|
|
|
|
options = {
|
|
|
|
system.build = pkgs.lib.mkOption {
|
|
default = {};
|
|
description = ''
|
|
Attribute set of derivations used to setup the system.
|
|
'';
|
|
};
|
|
|
|
nesting.children = pkgs.lib.mkOption {
|
|
default = [];
|
|
description = ''
|
|
Additional configurations to build.
|
|
'';
|
|
};
|
|
|
|
};
|
|
|
|
|
|
# This attribute is responsible for creating boot entries for
|
|
# child configuration. They are only (directly) accessible
|
|
# when the parent configuration is boot default. For example,
|
|
# you can provide an easy way to boot the same configuration
|
|
# as you use, but with another kernel
|
|
# !!! fix this
|
|
children = map (x: ((import ../../../default.nix)
|
|
{ configuration = x//{boot=((x.boot)//{grubDevice = "";});};}).system)
|
|
config.nesting.children;
|
|
|
|
|
|
systemBuilder =
|
|
''
|
|
ensureDir $out
|
|
|
|
ln -s ${config.boot.kernelPackages.kernel}/vmlinuz $out/kernel
|
|
ln -s $grub $out/grub
|
|
ln -s ${config.system.build.bootStage2} $out/init
|
|
ln -s ${config.system.build.initialRamdisk}/initrd $out/initrd
|
|
ln -s ${config.system.activationScripts.script} $out/activate
|
|
ln -s ${config.system.build.etc}/etc $out/etc
|
|
ln -s ${config.system.path} $out/sw
|
|
ln -s ${pkgs.upstart} $out/upstart
|
|
|
|
echo "$kernelParams" > $out/kernel-params
|
|
echo "$configurationName" > $out/configuration-name
|
|
echo "${toString pkgs.upstart.interfaceVersion}" > $out/upstart-interface-version
|
|
|
|
mkdir $out/fine-tune
|
|
childCount=0;
|
|
for i in $children; do
|
|
childCount=$(( childCount + 1 ));
|
|
ln -s $i $out/fine-tune/child-$childCount;
|
|
done
|
|
|
|
ensureDir $out/bin
|
|
substituteAll ${./switch-to-configuration.sh} $out/bin/switch-to-configuration
|
|
chmod +x $out/bin/switch-to-configuration
|
|
'';
|
|
|
|
|
|
# Putting it all together. This builds a store path containing
|
|
# symlinks to the various parts of the built configuration (the
|
|
# kernel, the Upstart services, the init scripts, etc.) as well as a
|
|
# script `switch-to-configuration' that activates the configuration
|
|
# and makes it bootable.
|
|
system = pkgs.stdenv.mkDerivation {
|
|
name = "system";
|
|
buildCommand = systemBuilder;
|
|
inherit children;
|
|
inherit (pkgs) grub;
|
|
grubDevice = config.boot.grubDevice;
|
|
kernelParams =
|
|
config.boot.kernelParams ++ config.boot.extraKernelParams;
|
|
grubMenuBuilder = config.system.build.grubMenuBuilder;
|
|
configurationName = config.boot.configurationName;
|
|
# Most of these are needed by grub-install.
|
|
path = [
|
|
pkgs.coreutils
|
|
pkgs.gnused
|
|
pkgs.gnugrep
|
|
pkgs.findutils
|
|
pkgs.diffutils
|
|
pkgs.upstart # for initctl
|
|
];
|
|
};
|
|
|
|
|
|
in {
|
|
require = [options];
|
|
|
|
system.build.system = system;
|
|
}
|