Formatter for Elixir

[flwyd]

Formatter tool
mix is the standard Elixir build tool. It provides a mix format command.

Filetype(s)
elixir (*.ex, *.exs), eelixir (*.eex), heex (*.heex)

Additional context
mix format can accept a file via stdin, but doesn't seem to support line range formatting. It derives formatting configuration from a .formatter.exs config file which can be at the root of a project (parallel to mix.exs) or overridden by a formatter in a subdirectory. It also works on Elixir files which are not part of a Mix project.