dotfiles/vim/vimrc

set nocompatible

" Options {{{
    set     autoindent
    set     autoread
    let    &background = $BACKGROUND ==# 'light' ? 'light' : 'dark'
    set     backspace=indent,eol,start
    set   nobackup
    set     clipboard=unnamed
    set     colorcolumn=80
    set     cursorline
    set     diffopt=filler,vertical
    set     encoding=utf8
    set     expandtab
    set     fileformats=unix,mac,dos
    set     foldenable
    set     foldlevelstart=100
    set     foldmethod=syntax
    set     foldnestmax=10
    let    &formatlistpat='^\s*\(\d\+[\]:.)}\t ]\|[-*]\|\[[ x]\]\|([ x])\)\s*'
    set     formatoptions-=t
    set     formatoptions+=jn
    set     hidden
    set     history=1000
    set     hlsearch
    set     incsearch
    set   nojoinspaces
    set     laststatus=2
    set     lazyredraw
    set     list
    if has('multi_byte') && &encoding ==# 'utf-8'
      let  &listchars = 'tab:▷ ,extends:»,precedes:«,trail:·'
      let  &showbreak = ' ⤷  '
    else
      let  &listchars = 'tab:>~,extends:>,precedes:<,trail:-'
      let  &showbreak = '-> '
    endif
    set     modelines=0
    set     number
    set     scrolloff=5
    set     shiftwidth=4
    set     shortmess+=I
    set     showmatch
    set   noshowmode
    set     sidescrolloff=5
    set     nrformats-=octal
    set     smartindent
    set     smarttab
    set     splitbelow
    set     splitright
    set   noswapfile
    set     tabstop=4
    set     textwidth=79
    set     timeoutlen=1000
    set     ttimeoutlen=100
    set     ttyfast
                "   +--Disable hlsearch while loading viminfo
                "   | +--Remember marks for last 500 files
                "   | |    +--Remember up to 10000 lines in each register
                "   | |    |      +--Remember up to 1MB in each register
                "   | |    |      |     +--Remember last 1000 search patterns
                "   | |    |      |     |     +---Remember last 1000 commands
                "   | |    |      |     |     |
                "   v v    v      v     v     v
    set     viminfo=h,'500,<10000,s1000,/1000,:1000
    set     viminfofile=~/.vim/viminfo
    set     virtualedit=block
    set     wildignore=*.o,*.obj,*.pyc,*.exe,*.so,*.dll
    set     wildmenu
    set     wrap
    set     writebackup
" }}}

" Plugins {{{
    call plug#begin('~/.vim/bundle')
        Plug 'altercation/vim-colors-solarized'
        Plug 'bronson/vim-trailing-whitespace'
        Plug 'elzr/vim-json'
        Plug 'godlygeek/tabular' | Plug 'plasticboy/vim-markdown'
        Plug 'junegunn/rainbow_parentheses.vim'
        Plug 'kien/ctrlp.vim'
        Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeToggle' }
        Plug 'tpope/vim-commentary'
        Plug 'tpope/vim-fugitive'
        Plug 'vim-airline/vim-airline'
        Plug 'vim-airline/vim-airline-themes'
        Plug 'vim-scripts/srec.vim'
        Plug 'keith/swift.vim'
        Plug 'chr4/nginx.vim'
    call plug#end()

    let g:ctrlp_match_window = 'bottom,order:ttb'
    let g:ctrlp_switch_buffer = 0       " open files in new buffer
    let g:ctrlp_working_path_mode = 0   " use the current working directory

    let g:rainbow#pairs = [['(',')'], ['[',']'], ['{','}']]

                                                   " line : col (% of total)
    let g:airline_section_z = airline#section#create(['%4l:%3v (%p%% of %L)'])
    if !exists('g:airline_symbols')
        let g:airline_symbols = {}
    endif

    let g:airline_left_sep = ' '
    let g:airline_left_alt_sep = ''
    let g:airline_right_sep = ' '
    let g:airline_right_alt_sep = ''
    let g:airline_symbols.crypt = '🔒'
    let g:airline_symbols.branch = '⎇'
    let g:airline_symbols.paste = 'Ⓟ'
    let g:airline_symbols.spell = '✔'
    let g:airline_symbols.readonly = ' ⃠'
    let g:airline_symbols.notexists = '∄'
    let g:airline_symbols.whitespace = '✗'

    highlight link srecStart        Comment
    highlight link srecType         Comment
    highlight link srecLength       WarningMsg
    highlight link srec16BitAddress Constant
    highlight link srec24BitAddress Constant
    highlight link srec32BitAddress Constant
    highlight link srecChecksum     Type

    colorscheme solarized
    filetype plugin indent on
    syntax enable
" }}}

" Functions {{{
    " Cycle through relativenumber + number, number (only), and no numbering.
    function! VimrcCycleNumbers() abort
      if exists('+relativenumber')
        execute {
              \ '00': 'set relativenumber   | set number',
              \ '01': 'set norelativenumber | set number',
              \ '10': 'set norelativenumber | set nonumber',
              \ '11': 'set norelativenumber | set number' }[&number . &relativenumber]
      else
        set number! " No relative numbering, just toggle numbers on and off.
      endif
    endfunction

" }}}"

" Mappings {{{
    let mapleader = "\<space>"
    let maplocalleader = ","

    " better navigation for wrapped lines
    noremap j gj
    noremap k gk

    " quickly exit insert mode
    inoremap jk <esc>

    " retain selection when indenting/unindenting in visual mode
    vnoremap > ><cr>gv
    vnoremap < <<cr>gv

    " better searching (case insensitive & expand on previous)
    nnoremap // /\c
    nnoremap /// /<C-R>/

    " window resizing similar to the way I have tmux set up
    nnoremap <c-w><c-k> 5<c-w>+
    nnoremap <c-w><c-j> 5<c-w>-
    nnoremap <c-w><c-h> 5<c-w><
    nnoremap <c-w><c-l> 5<c-w>>

    " easier tab navigation
    nnoremap <c-j> :tabprevious<cr>
    nnoremap <c-k> :tabnext<cr>
    nnoremap <c-h> :tabfirst<cr>
    nnoremap <c-l> :tablast<cr>

    " quickly change background
    nnoremap <leader>bg
        \ :let &background = &background ==# 'light' ? 'dark' : 'light'<cr>

    " turn off search highlight
    nnoremap <leader>h :nohlsearch<cr>

    " toggle NERDTree
    nnoremap <leader>n :NERDTreeToggle<cr>

    " toggle rainbow parens
    nnoremap <leader>r :RainbowParentheses!!<cr>

    " fix whitespace
    nnoremap <leader>w :FixWhitespace<cr>

    " cycle through line numbering modes
    nnoremap <silent> <leader>r :call VimrcCycleNumbers()<CR>

" }}}"

augroup vimrc " {{{
    autocmd!
    autocmd BufNewFile,BufRead bash_profile,bashrc set filetype=sh
    autocmd BufNewFile,BufRead gitconfig set filetype=gitconfig
    autocmd BufNewFile,BufRead rcrc set filetype=sh
    autocmd BufNewFile,BufRead *.sx,*.s19 set filetype=srec

    autocmd FileType vim setlocal foldmethod=marker
    autocmd FileType python setlocal foldmethod=indent foldignore=
    autocmd FileType markdown,text,gitcommit setlocal formatoptions+=t spell
    autocmd FileType gitcommit setlocal textwidth=72
augroup END " }}}

if filereadable(expand("~/.vimrc.local")) | source ~/.vimrc.local | endif