Description

It'd be nice to have a way to disable formatting with a comment directive such as nix-community/nixpkgs-fmt#265. If this were added I'd probably switch from using nixpkgs-fmt.

Small example input

# nixfmt: off
{
  "asd" = 123; "abc" = 321;
}
# nixfmt: on

Expected output

# nixfmt: off
{
  "asd" = 123; "abc" = 321;
}
# nixfmt: on

Actual output

# nixfmt: off
{
  "asd" = 123;
  "abc" = 321;
}
# nixfmt: on