.vimrc

" necessary for system-wide vimrcs (http://stackoverflow.com/questions/5845557/in-a-vimrc-is-set-nocompatible-completely-useless)
set nocompatible

" enable plugin manager
" http://stackoverflow.com/questions/14642956/why-vundle-requires-filetype-off
filetype off
set rtp+=~/.vim/bundle/vundle/
call vundle#rc()
Bundle 'gmarik/vundle'

" limited autocomplete
" https://github.com/Valloric/YouCompleteMe
Bundle 'Valloric/YouCompleteMe'

" indentation level lines
" https://github.com/nathanaelkane/vim-indent-guides
Bundle 'nathanaelkane/vim-indent-guides'

" syntax warnings
" https://github.com/scrooloose/syntastic
Bundle 'scrooloose/syntastic'

" color-code pairs of brackets
" https://github.com/kien/rainbow_parentheses.vim
Bundle 'kien/rainbow_parentheses.vim'

" magic cursor motion
" https://github.com/Lokaltog/vim-easymotion
Bundle 'Lokaltog/vim-easymotion'

" silver searcher
Bundle 'rking/ag.vim'

" load filetype-specific plugins and use their indentation rules
filetype plugin indent on

" insert spaces when tab key is pressed
set expandtab
" render tab characters as two characters wide
set tabstop=2
" use two spaces per indentation level
set shiftwidth=2
" traverse two spaces with backspace
set softtabstop=2

" find search results as you type, ignoring case if all lowercase
set incsearch ignorecase smartcase

" preserve indentation level if no filetype rules are known
set autoindent

" highlight syntax
syntax on

" use nice dark background, bright colors colorscheme
colorscheme tomorrow-night-eighties
autocmd ColorScheme * highlight Normal ctermbg=None ctermfg=None
autocmd ColorScheme * highlight NonText ctermbg=None

" present file and cursor information in status line
set statusline+=%F                      "full path
set statusline +=%1*%=%5l%*             "current line
set statusline +=%2*/%L%*               "total lines
set statusline +=%1*%4v\ %*             "virtual column number
set laststatus=2

" remember undo history across sessions
set undofile
" NOTE: you must mkdir ~/.vim/undo or delete this line
set undodir=$HOME/.vim/undo

" remap 'f' to delete into the black hole buffer
map f "_d
map ff "_dd
" remap 'r' to delete the selection into the black hole buffer and paste
vmap r "_dP
" use native OS clipboard instead of vim default buffer
set clipboard=unnamed

" remember state across sessions
set viminfo='20,\"100,:20,%,n~/.viminfo
" restore cursor position
:au BufReadPost * if line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g`\"" | endif

" indent guides settings
set background=dark
let g:indent_guides_enable_on_vim_startup = 1
let g:indent_guides_auto_colors = 0
hi IndentGuidesOdd  ctermbg=235
hi IndentGuidesEven ctermbg=237

" highlight extra whitespace
:highlight ExtraWhitespace ctermbg=22
:match ExtraWhitespace /\s\+$/

" remove last newline if it was originally missing
:let g:PreserveNoEOL = 1

" In many terminal emulators the mouse works just fine, thus enable it.
if has('mouse')
set mouse=a
endif

" Make the window titlebar read 'vim[filename]'
set title
set titlestring=vim[%f]

" use ,, for easymotion
let mapleader = ","