liminix/modules/outputs/jffs2.nix
2023-12-11 21:21:12 +00:00

42 lines
1 KiB
Nix

{
config
, pkgs
, lib
, ...
}:
let
inherit (lib) mkIf mkOption types;
o = config.system.outputs;
in
{
imports = [
./initramfs.nix
];
config = mkIf (config.rootfsType == "jffs2") {
kernel.config = {
JFFS2_FS = "y";
JFFS2_LZO = "y";
JFFS2_RTIME = "y";
JFFS2_COMPRESSION_OPTIONS = "y";
JFFS2_ZLIB = "y";
JFFS2_CMODE_SIZE = "y";
};
boot.initramfs.enable = true;
system.outputs = {
systemConfiguration =
pkgs.systemconfig config.filesystem.contents;
rootfs =
let
inherit (pkgs.pkgsBuildBuild) runCommand mtdutils;
endian = if pkgs.stdenv.isBigEndian
then "--big-endian" else "--little-endian";
in runCommand "make-jffs2" {
depsBuildBuild = [ mtdutils ];
} ''
tree=${o.bootablerootdir}
(cd $tree && mkfs.jffs2 --compression-mode=size ${endian} -e ${toString config.hardware.flash.eraseBlockSize} --enable-compressor=lzo --pad --root . --output $out --squash --faketime )
'';
};
};
}