A minimal vimrc for use on remote servers

readme.md

Minimal .vimrc

To install, download the .vimrc to the $HOME directory, and create the subdirs in ~/.vim/.

mkdir -p ~/.vim/_backup/
mkdir -p ~/.vim/_temp/
mkdir -p ~/.vim/_undo/
[[ -e ~/.vimrc ]] && cp ~/.vimrc ~/.vimrc.backup
curl -sSLo ~/.vimrc $LINK_TO_MINIMAL_VIMRC

minimal.vimrc

syntax enable
colorscheme slate

set ai
set autoread
set background=dark
set backspace=eol,start,indent
set backupdir^=~/.vim/_backup//
set directory^=~/.vim/_temp//
set encoding=utf8
set expandtab
set ffs=unix,dos,mac
set history=500
set hlsearch
set ignorecase
set incsearch
set laststatus=2
set lazyredraw
set magic
set mat=2
set noerrorbells
set novisualbell
set nowrap
set number
set ruler
set shiftwidth=2
set showmatch
set si
set smartcase
set smarttab
set so=7
set statusline=\ %n:\ %F\ %m%r%y%=[%{strlen(&fenc)?&fenc:'none'}]\ [%{&ff}]\ %c/%l\ (%L)\ %P
set t_vb=
set tabstop=2
set softtabstop=2
set tm=500
set undodir^=~/.vim/_undo//
" set undofile
set whichwrap+=<,>,h,l
set wildignore=*.o,*~,*.pyc,.git\*
set wildmenu
set wildmode=longest,list,full

nnoremap <silent> <C-l> :nohl<CR><C-l>

cnoremap <C-A> <Home>
cnoremap <C-E> <End>
cnoremap <C-K> <C-U>

filetype plugin on
filetype indent on

let mapleader = ","
let g:mapleader = ","

" Python
au FileType python setlocal sts=4 sw=4 ts=4 tw=79 colorcolumn=80
au BufRead,BufNewFile *.py match BadWhitespace /^\t\+/
au BufRead,BufNewFile *.py match BadWhitespace /\s\+$/

" Save as root
cmap w!! %!sudo tee > /dev/null %

let g:loaded_numbertoggle = 1
let g:insertmode = 0
let g:focus = 1
let g:relativemode = 1

" Enables relative numbers.
function! EnableRelativeNumbers()
  set number
  set relativenumber
endfunc

" Disables relative numbers.
function! DisableRelativeNumbers()
  set number
  set norelativenumber
endfunc

" NumberToggle toggles between relative and absolute line numbers
function! NumberToggle()
  if(&relativenumber == 1)
    call DisableRelativeNumbers()
    let g:relativemode = 0
  else
    call EnableRelativeNumbers()
    let g:relativemode = 1
  endif
endfunc

function! UpdateMode()
  if(&number == 0 && &relativenumber == 0)
    return
  end

  if(g:focus == 0)
    call DisableRelativeNumbers()
  elseif(g:insertmode == 0 && g:relativemode == 1)
    call EnableRelativeNumbers()
  else
    call DisableRelativeNumbers()
  end

  if !exists("&numberwidth") || &numberwidth <= 4
    " Avoid changing actual width of the number column with each jump between
    " number and relativenumber:
    let &numberwidth = max([4, 1+len(line('$'))])
  else
    " Explanation of the calculation:
    " - Add 1 to the calculated maximal width to make room for the space
    " - Assume 4 as the minimum desired width if &numberwidth is not set or is
    "   smaller than 4
    let &numberwidth = max([&numberwidth, 1+len(line('$'))])
  endif
endfunc

function! FocusGained()
  let g:focus = 1
  call UpdateMode()
endfunc

function! FocusLost()
  let g:focus = 0
  call UpdateMode()
endfunc

function! InsertLeave()
  let g:insertmode = 0
  call UpdateMode()
endfunc

function! InsertEnter()
  let g:insertmode = 1
  call UpdateMode()
endfunc

" Automatically set relative line numbers when opening a new document
autocmd BufNewFile * :call UpdateMode()
autocmd BufReadPost * :call UpdateMode()
autocmd FilterReadPost * :call UpdateMode()
autocmd FileReadPost * :call UpdateMode()

" Automatically switch to absolute numbers when focus is lost and switch back
" when the focus is regained.
autocmd FocusLost * :call FocusLost()
autocmd FocusGained * :call FocusGained()
autocmd WinLeave * :call FocusLost()
autocmd WinEnter * :call FocusGained()

" Switch to absolute line numbers when the window loses focus and switch back
" to relative line numbers when the focus is regained.
autocmd WinLeave * :call FocusLost()
autocmd WinEnter * :call FocusGained()

" Switch to absolute line numbers when entering insert mode and switch back to
" relative line numbers when switching back to normal mode.
autocmd InsertEnter * :call InsertEnter()
autocmd InsertLeave * :call InsertLeave()

" ensures default behavior / backward compatibility
if ! exists ( 'g:UseNumberToggleTrigger' )
  let g:UseNumberToggleTrigger = 1
endif

if exists('g:NumberToggleTrigger')
  exec "nnoremap <silent> " . g:NumberToggleTrigger . " :call NumberToggle()<cr>"
elseif g:UseNumberToggleTrigger
  nnoremap <silent> <C-n> :call NumberToggle()<cr>
endif