init.vim

" Don't change working directory.
let g:ctrlp_working_path_mode = ''

" How CtrlP finds files. For now it uses git/hg when possible, but fallbacks to find.
let g:ctrlp_user_command = {
            \ 'types': {
            \ 1: ['.git', 'cd %s && git ls-files -oc --exclude-standard'],
            \ 2: ['.hg', 'hg --cwd %s locate -I .'],
            \ },
            \ 'fallback': 'find %s -type f -o -type l'
            \ }

" CtrlP height.
let g:ctrlp_match_window = 'max:20'

" Custom status.
function! CtrlPStatusFuncMain(focus, byfname, regex, prev, item, next, marked)
    return getcwd()
endfunction
let g:ctrlp_status_func = {
            \ 'main': 'CtrlPStatusFuncMain',
            \ }

let g:ctrlp_map = ''

function! CtrlP()
  if (getcwd() == $HOME)
    echo "Won't run in ~"
    return
  endif
  if (getcwd() == '/')
    echo "Won't run in /"
    return
  endif
  CtrlP
endfunction

nnoremap <C-p> :call CtrlP()<CR>

" Clears cache and then runs CtrlP.
nnoremap <Leader>p :CtrlPClearAllCaches \| CtrlP<CR>