How do you reload your .vimrc file without restarting vim?

Question

Can you edit your .vimrc file in vim, and reload it without restarting vim?

Answer 1

If you're editing it, you can reload it with:

:so %

% stands for current file name (see :h current-file) and :so is short for :source, which reads the content of the specified file and treats it as Vim code.

In general, to re-load the currently active .vimrc, use the following (see Daily Vim):

:so $MYVIMRC

Answer 2

Even better, you configure Vim to watch for changes in your .vimrc and automatically reload the config.

augroup myvimrc
    au!
    au BufWritePost .vimrc,_vimrc,vimrc,.gvimrc,_gvimrc,gvimrc so $MYVIMRC | if has('gui_running') | so $MYGVIMRC | endif
augroup END

Source: this answer on SO

Note: this particular method watches for the many variations of Vim config filenames so that it's compatible with GUI Vim, Windows Vim, etc.