The option `systemd.tmpfiles.settings.preservation."...".d.mode' has conflicting definition values:

[nazarewk]

I have recently updated the preservation in my repository where I had implemented intermediate user directories for a while already https://github.com/nazarewk-iac/nix-configs/blob/3538bc37a4b9f7aa1525ff50fb628c1603c7c8cf/modules/nixos/hw/disks/config.nix

I am defaulting to 0750 home directories and I started getting this error:

       error: The option `systemd.tmpfiles.settings.preservation."/home/kdn/.local/share/bottles".d.mode' has conflicting definition values:
       - In `/nix/store/1xq4n97cms68kqxiww3i0hczajfnc0ys-source/module.nix': "0750"
       - In `/nix/store/1xq4n97cms68kqxiww3i0hczajfnc0ys-source/module.nix': "0755"
       Use `lib.mkForce value` or `lib.mkDefault value` to change the priority on any of these definitions.

The diff from previous flake locked version is 286737b...93416f4

I do suspect this to be the culprit

preservation/options.nix

Line 361 in 93416f4

mode = "0755";

, but I'm still digging into it.

[nazarewk]

my config looks like this:

nix-repl> :p builtins.filter (e: e.directory == "/home/kdn/.local/share/bottles") nixosConfigurations.brys.config.preservation.preserveAt."usr/data".users.kdn.directories
[
  {
    configureParent = false;
    createLinkTarget = false;
    directory = "/home/kdn/.local/share/bottles";
    group = "users";
    how = "bindmount";
    inInitrd = false;
    mode = "0750";
    mountOptions = [
      {
        name = "bind";
        value = null;
      }
      {
        name = "X-fstrim.notrim";
        value = null;
      }
      {
        name = "x-gvfs-hide";
        value = null;
      }
      {
        name = "x-gdu.hide";
        value = null;
      }
    ];
    parent = {
      group = "users";
      mode = "0750";
      user = "kdn";
    };
    user = "kdn";
  }
]

[nazarewk]

I still think this is broken due to above hardcoded "0755" and is probably caused by my config splitting subdirectories into different preservations roots:

      {
        kdn.hw.disks.persist."usr/data".directories = [
          ".local/share/bottles"
        ];
        kdn.hw.disks.persist."usr/cache".directories = [
          ".local/share/bottles/runners"
          ".local/share/bottles/temp"
          ".local/share/bottles/dxvk"
        ];
      }

the usr/cache defaults to 0755 while the usr/data uses proper 0750:

nix-repl> :p builtins.filter (e: e ? "/home/kdn/.local/share/bottles") (lib.flatten (lib.mapAttrsToList (inputs.preservation.lib {inherit (inputs.nixpkgs) lib;}).mkRegularTmpfilesRules nixosConfigurations.brys.config.preservation.preserveAt))
[
  {
    "/home/kdn/.local/share/bottles" = {
      d = {
        group = "users";
        mode = "0755";
        user = "kdn";
      };
    };
    "/nix/persist/usr/cache/home/kdn/.local/share/bottles" = {
      d = {
        group = "users";
        mode = "0755";
        user = "kdn";
      };
    };
  }
  {
    "/home/kdn/.local/share/bottles" = {
      d = {
        group = "users";
        mode = "0750";
        user = "kdn";
      };
    };
    "/nix/persist/usr/data/home/kdn/.local/share/bottles" = {
      d = {
        group = "users";
        mode = "0750";
        user = "kdn";
      };
    };
  }
]

in turn caused by _intermediate entry:

nix-repl> :p lib.pipe nixosConfigurations.brys.config.preservation.preserveAt [(lib.mapAttrsToList (k: e: e.users.kdn.directories)) lib.flatten (builtins.filter (e: e.directory == "/home/kdn/.local/share/bottles"))]
[
  {
    configureParent = false;
    directory = "/home/kdn/.local/share/bottles";
    group = "users";
    how = "_intermediate";
    inInitrd = false;
    mode = "0755";
    user = "kdn";
  }
  {
    configureParent = false;
    createLinkTarget = false;
    directory = "/home/kdn/.local/share/bottles";
    group = "users";
    how = "bindmount";
    inInitrd = false;
    mode = "0750";
    mountOptions = [
      {
        name = "bind";
        value = null;
      }
      {
        name = "X-fstrim.notrim";
        value = null;
      }
      {
        name = "x-gvfs-hide";
        value = null;
      }
      {
        name = "x-gdu.hide";
        value = null;
      }
    ];
    parent = {
      group = "users";
      mode = "0750";
      user = "kdn";
    };
    user = "kdn";
  }
]