" Taken from https://github.com/elixir-editors/vim-elixir - full plugin not
" needed due to treesitter support
au BufRead,BufNewFile *.ex,*.exs set filetype=elixir
au BufRead,BufNewFile *.eex,*.heex,*.leex,*.sface,*.lexs set filetype=eelixir
au BufRead,BufNewFile mix.lock set filetype=elixir
au BufRead,BufNewFile * call s:DetectElixir()

function! s:DetectElixir()
  if (!did_filetype() || &filetype !=# 'elixir') && getline(1) =~# '^#!.*\<elixir\>'
    set filetype=elixir
  endif
endfunction