In reply to @vika:matrix.nice.sampler.fi
"follows" always uses the root flake for dependency resolution, not the parent flake

In reply to @polykernel:kde.org
can a flake have inputs of an arbitrary type?

In reply to @vika:matrix.nice.sampler.fi
This property of "follows" surely could be exploited in some way to do interesting things...

In reply to @blaggacao:matrix.org
I guess this PR has all the relevant details / fixes https://github.com/NixOS/nix/pull/4641 somteims one can work around that bug with something like https://www.github.com/divnix/devos/tree/develop/flake.nix#L49. But this work around stops working if things are too nested. We usually use the patched nix version in a devshell to update the lock file. The correctly generated lockfile is then also compatible with a non-patched nix version.

In reply to @blaggacao:matrix.org
vika (she/her) 🏳️‍⚧️ you might use divnix/digga.overlays.patchedNix for convenience.

Cool! Thank you.

I wonder what this __dontExport thing does...

In reply to @balsoft:balsoft.ru
What do you mean by "type" of an input?

If my understanding is correct, upon evaluating a flake, the directory where the flake resides is copied into the nix store. However when I attempt to reference a subdirectory of the flake directory within flake.nix itself, I can an error that the file does not exist even though it does.

<...>
users.users =
              builtins.listToAttrs (map
                (user: {
                  name = user;
                  value = {               
                    passwordFile = builtins.toString (./. + "/users/${user}/secrets/passwd");
                  };
                }) attr.users);
<...>

results in something like warning: password file ‘/nix/store/g76a07317yanvwp8lrib7zpji6flxpn1-source/users/user/secrets/passwd’ does not exist

If my understanding is correct, upon evaluating a flake, the directory where the flake resides is copied into the nix store. However when I attempt to reference a subdirectory of the flake directory within flake.nix itself, I get an error that the file does not exist even though it does.

<...>
users.users =
              builtins.listToAttrs (map
                (user: {
                  name = user;
                  value = {               
                    passwordFile = builtins.toString (./. + "/users/${user}/secrets/passwd");
                  };
                }) attr.users);
<...>

results in something like warning: password file ‘/nix/store/g76a07317yanvwp8lrib7zpji6flxpn1-source/users/user/secrets/passwd’ does not exist

If my understanding is correct, upon evaluating a flake, the directory where the flake resides is copied into the nix store. However when I attempt to reference a subdirectory of the flake directory within flake.nix itself, I get an error that the file does not exist even though it does.

<...>
users.users =
  builtins.listToAttrs (map
    (user: {
      name = user;
      value = {               
        passwordFile = builtins.toString (./. + "/users/${user}/secrets/passwd");
      };
    }) attr.users);
<...>

results in something like warning: password file ‘/nix/store/g76a07317yanvwp8lrib7zpji6flxpn1-source/users/user/secrets/passwd’ does not exist