about summary refs log tree commit diff stats
path: root/system/fileSystemLayouts/default.nix
blob: a3ba353bcfa5cfcb4b74730a04b15f9b2ee61b1d (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
{
  config,
  lib,
  ...
}:
with lib; let
  cfg = config.system.fileSystemLayouts;
  defaultMountOptions = [
    "compress-force=zstd:15" # This saves disk space, at a performance cost
    "noatime" # should have some performance upsides, and I don't use it anyways
  ];
in {
  options.system.fileSystemLayouts = {
    enable = mkEnableOption (mdDoc "fileSystemLayout");
    mainDisk = mkOption {
      type = lib.types.path;
      example = literalExpression "/dev/disk/by-uuid/0442cb6d-f13a-4635-b487-fa76189774c5";
      description = lib.mdDoc "Path to the main disk";
    };
    efiDisk = mkOption {
      type = lib.types.path;
      example = literalExpression "/dev/disk/by-uuid/5143-6136";
      description = lib.mdDoc "Path to the main disk";
    };
  };

  config = mkIf cfg.enable {
    fileSystems = {
      "/" = {
        device = "none";
        fsType = "tmpfs";
        options = ["defaults" "size=2G" "mode=755"];
      };
      "/nix" = {
        device = cfg.mainDisk;
        fsType = "btrfs";
        options = ["subvol=nix"] ++ defaultMountOptions;
      };
      "/srv" = {
        device = cfg.mainDisk;
        fsType = "btrfs";
        neededForBoot = true;
        options = ["subvol=storage"] ++ defaultMountOptions;
      };
      "/boot" = {
        device = cfg.efiDisk;
        fsType = "vfat";
      };

      # This results in infinite recursion, don't ask my why
      #      "${config.users.users.soispha.home}/.config" = {
      #        device = "none";
      #        fsType = "tmpfs";
      #        options = ["defaults" "size=1G" "mode=755"];
      #      };
    };
    swapDevices = [];
  };
}