function fish_prompt
  if test -e "$NVIM_LISTEN_ADDRESS"
    echo "» "
  else
    echo "\$ "
  end
end

function fish_prompt
  if test -e "$NVIM_LISTEN_ADDRESS"
    echo (basename (pwd))"» "
  else
    echo (basename (pwd))"\$ "
  end
end

Add tail of path to fish prompt
Add tail of path to fish prompt

This mimics my bash prompt.

bronzehedwick/dotfiles,bronzehedwick/dotfiles,bronzehedwick/dotfiles,bronzehedwick/dotfiles