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|
{ config, lib, pkgs, ... }:
with builtins; with lib; {
config = mkIf config.wsl.enable (
let
mkTarball = pkgs.callPackage "${lib.cleanSource pkgs.path}/nixos/lib/make-system-tarball.nix";
pkgs2storeContents = map (x: { object = x; symlink = "none"; });
rootfs = let tarball = config.system.build.tarball; in "${tarball}/tarball/${tarball.fileName}.tar${tarball.extension}";
installer = pkgs.writeScript "installer.sh" ''
#!${pkgs.busybox}/bin/sh
BASEPATH=$PATH
export PATH=$BASEPATH:${pkgs.busybox}/bin # Add busybox to path
set -e
cd /
echo "Unpacking root file system..."
${pkgs.pv}/bin/pv ${rootfs} | tar xz
echo "Activating nix configuration..."
/nix/var/nix/profiles/system/activate
PATH=$BASEPATH:/run/current-system/sw/bin # Use packages from target system
echo "Cleaning up installer files..."
nix-collect-garbage
rm /nix-path-registration
echo "Optimizing store..."
nix-store --optimize
# Don't package the shell here, it's contained in the rootfs
exec ${builtins.unsafeDiscardStringContext config.users.users.root.shell} "$@"
'';
# Set installer.sh as the root shell
passwd = pkgs.writeText "passwd" ''
root:x:0:0:System administrator:/root:${installer}
'';
in
{
system.build.installer = mkTarball {
fileName = "nixos-wsl-installer";
compressCommand = "gzip";
compressionExtension = ".gz";
extraArgs = "--hard-dereference";
storeContents = with pkgs; pkgs2storeContents [
installer
];
contents = [
{ source = config.environment.etc."wsl.conf".source; target = "/etc/wsl.conf"; }
{ source = passwd; target = "/etc/passwd"; }
];
};
}
);
}
|
