Like vim? Hate tabs, but are writing some golang, which insists on tabs? Here’s what I just updated my .vimrc to today:
set expandtab
set tabstop=4
set ruler
syntax on
if has('autocmd')
filetype on
if !exists("autocommands_loaded")
let autocommands_loaded = 1
autocmd FileType go setlocal noexpandtab
endif
endif