pedantix

pedantix is the pedantic Nix formatter.

It runs your base formatter of choice (nixfmt, alejandra, nixpkgs-fmt, or an arbitrary command of your choosing) and then applies reordering on top. Every feature is optional.

On by default:

• ordering of function arguments
• ordering of attributes (comment blocks above the moved line stay attached)

Off by default:

• ordering of inherits (a case could be made that this should be on by default)
• ordering of let bindings
• ordering of lists
• merging of repeated keys (this does not fix broken evaluations)
• enforcing of blank lines in between attribute sets
• ordering overrides for custom attribute paths

Continue to Getting Started.