nixpkgs/nixos/modules/tasks/filesystems/f2fs.nix

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{ config, pkgs, lib, ... }:
with lib;
let
inInitrd = any (fs: fs == "f2fs") config.boot.initrd.supportedFilesystems;
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fileSystems = filter (x: x.fsType == "f2fs") config.system.build.fileSystems;
in
{
config = mkIf (any (fs: fs == "f2fs") config.boot.supportedFilesystems) {
system.fsPackages = [ pkgs.f2fs-tools ];
boot.initrd.availableKernelModules = mkIf inInitrd [ "f2fs" "crc32" ];
boot.initrd.extraUtilsCommands = mkIf inInitrd ''
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copy_bin_and_libs ${pkgs.f2fs-tools}/sbin/fsck.f2fs
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${optionalString (any (fs: fs.autoResize) fileSystems) ''
# We need f2fs-tools' tools to resize filesystems
copy_bin_and_libs ${pkgs.f2fs-tools}/sbin/resize.f2fs
''}
'';
};
}