My personal neovim config

init.vim

  call plug#begin('~/.config/nvim/bundle')
Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
Plug 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }
Plug 'jodosha/vim-godebug' " Debugger integration via delve
Plug 'godoctor/godoctor.vim' " Some refactoring tools
Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeToggle' }
Plug 'zchee/deoplete-go', {'build': {'unix': 'make'}}
Plug 'jodosha/vim-godebug' " Debugger integration via delve
Plug 'mattn/emmet-vim'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'jlanzarotta/bufexplorer'
Plug 'yuttie/comfortable-motion.vim'
Plug 'jceb/vim-orgmode'
Plug 'mileszs/ack.vim'
Plug 'ctrlpvim/ctrlp.vim'
" Call :PlugInstall to install new plugins
call plug#end()

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Basics
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
filetype plugin indent on
syntax on
set number
set clipboard=unnamed
" set relativenumber

if !&scrolloff
  set scrolloff=3       " Show next 3 lines while scrolling.
endif
if !&sidescrolloff
  set sidescrolloff=5   " Show next 5 columns while side-scrolling.
endif
set display+=lastline
set nostartofline       " Do not jump to first character with page commands.
set noerrorbells                " No beeps
set backspace=indent,eol,start  " Makes backspace key more powerful

filetype plugin on
filetype indent on

set autowrite                   " Automatically save before :next, :make etc.
set autoread

" With a map leader it's possible to do extra key combinations
" like <leader>w saves the current file
" noremap <Space> <Nop>
let mapleader = ","
nmap <Space> ,

" Fast saving
nmap <leader>w :w!<cr>
" nmap <M-s> :w!<cr>
" vmap <M-s> :w!<cr>

" :W sudo saves the file <Nvim - command already exist>
" (useful for handling the permission-denied error)
" command W w !sudo tee % > /dev/null

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => VIM user interface
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Set 7 lines to the cursor - when moving vertically using j/k
set so=7

" Turn on the Wild menu
set wildmenu

" Ignore compiled files
set wildignore=*.o,*~,*.pyc
if has("win16") || has("win32")
    set wildignore+=.git\*,.hg\*,.svn\*
else
    set wildignore+=*/.git/*,*/.hg/*,*/.svn/*,*/.DS_Store
endif

"Always show current position
set ruler

" Height of the command bar
set cmdheight=2

" A buffer becomes hidden when it is abandoned
set hid

" Ignore case when searching
set ignorecase

" When searching try to be smart about cases 
set smartcase

" Highlight search results
set hlsearch

" Makes search act like search in modern browsers
set incsearch 

" Don't redraw while executing macros (good performance config)
set lazyredraw 

" For regular expressions turn magic on
set magic

" Show matching brackets when text indicator is over them
set showmatch 

" How many tenths of a second to blink when matching brackets
set mat=2

" Add a bit extra margin to the left
set foldcolumn=1

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Colors and Fonts
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
syntax enable

" Set extra options when running in GUI mode
if has("gui_running")
    set guioptions-=T
    set guioptions-=e
    set t_Co=256
    set guitablabel=%M\ %t
endif

" Set utf8 as standard encoding and en_US as the standard language
set encoding=utf8

" Use Unix as the stadard file type
set ffs=unix,dos,mac

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Files, backups and undo
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Turn backup off, since most stuff is in SVN, git et.c anyway...
set nobackup
set nowb
set noswapfile

""nd indent related
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Use spaces instead of tabs
set expandtab

" Be smart when using tabs ;)
set smarttab

" 1 tab == 4 spaces
set shiftwidth=4
set tabstop=4

" Linebreak on 500 characters
set lbr
set tw=500

set ai "Auto indent
set si "Smart indent
set wrap "Wrap lines

""""""""""""""""""""""""""""""
" => Visual mode related
""""""""""""""""""""""""""""""
" Visual mode pressing * or # searches for the current selection
" Super useful! From an idea by Michael Naumann
vnoremap <silent> * :<C-u>call VisualSelection('', '')<CR>/<C-R>=@/<CR><CR>
vnoremap <silent> # :<C-u>call VisualSelection('', '')<CR>?<C-R>=@/<CR><CR>

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Moving around, tabs, windows and buffers
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Disable highlight when <leader><cr> is pressed
map <silent> <leader><cr> :noh<cr>

" Smart way to move between windows
map <C-j> <C-W>j
map <C-k> <C-W>k
map <C-h> <C-W>h
map <C-l> <C-W>l
map <leader>bn <C-W>l 
map <leader>bp <C-W>h
map <leader>wc <C-W>q
map <leader>bj <C-W>j
map <leader>bk <C-W>k
map <leader>bh <C-W>h
map <leader>bl <C-W>l

" Close the current buffer
map <leader>bd :Bclose<cr>:tabclose<cr>gT

" Close all the buffers
map <leader>ba :bufdo bd<cr>   

map <leader>l :bnext<cr>
map <leader>h :bprevious<cr>

" Useful mappings for managing tabs
map <leader>tn :tabnew<cr>
map <leader>to :tabonly<cr>
map <leader>tc :tabclose<cr>
map <leader>tm :tabmove 
map <leader>t<leader> :tabnext 

" Let 'tl' toggle between this and the last accessed tab
let g:lasttab = 1
nmap <Leader>tl :exe "tabn ".g:lasttab<CR>
au TabLeave * let g:lasttab = tabpagenr()


" Opens a new tab with the current buffer's path
" Super useful when editing files in the same directory
map <leader>te :tabedit <c-r>=expand("%:p:h")<cr>/

" Switch CWD to the directory of the open buffer
map <leader>cd :cd %:p:h<cr>:pwd<cr>

" Specify the behavior when switching between buffers 
try
  set switchbuf=useopen,usetab,newtab
  set stal=2
catch
endtry

" Return to last edit position when opening files (You want this!)
au BufReadPost * if line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g'\"" | endif

""""""""""""""""""""""""""""""
" => Status line
""""""""""""""""""""""""""""""
" Always show the status line
set laststatus=2

" Format the status line
set statusline=\ %{HasPaste()}%F%m%r%h\ %w\ \ CWD:\ %r%{getcwd()}%h\ \ \ Line:\ %l\ \ Column:\ %c

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Editing mappings
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Remap VIM 0 to first non-blank character
map 0 ^

" Move a line of text using ALT+[jk] or Command+[jk] on mac
nmap <M-j> mz:m+<cr>`z
nmap <M-k> mz:m-2<cr>`z
vmap <M-j> :m'>+<cr>`<my`>mzgv`yo`z
vmap <M-k> :m'<-2<cr>`>my`<mzgv`yo`z

if has("mac") || has("macunix")
  nmap <D-j> <M-j>
  nmap <D-k> <M-k>
  vmap <D-j> <M-j>
  vmap <D-k> <M-k>
endif

" Delete trailing white space on save, useful for some filetypes ;)
fun! CleanExtraSpaces()
    let save_cursor = getpos(".")
    let old_query = getreg('/')
    silent! %s/\s\+$//e
    call setpos('.', save_cursor)
    call setreg('/', old_query)
endfun

if has("autocmd")
    autocmd BufWritePre *.txt,*.js,*.py,*.wiki,*.sh,*.coffee :call CleanExtraSpaces()
endif

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Misc
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Remove the Windows ^M - when the encodings gets messed up
noremap <Leader>m mmHmt:%s/<C-V><cr>//ge<cr>'tzt'm

" Quickly open a buffer for scribble
map <leader>q :e ~/buffer<cr>

" Quickly open a markdown buffer for scribble
map <leader>x :e ~/buffer.md<cr>

" Toggle paste mode on and off
map <leader>pp :setlocal paste!<cr>
set clipboard=unnamed

map <Space><Tab> :e#<cr>
"map + :.w !pbcopy<CR><CR>
"map <F3> :r !pbpaste<CR>

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Plug in specific stuff
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Use deoplete.
let g:deoplete#enable_at_startup = 1

" => Nerd Tree
let g:NERDTreeWinPos = "left"
let NERDTreeShowHidden=0
let NERDTreeIgnore = ['\.pyc$', '__pycache__']
let g:NERDTreeWinSize=35
map <leader>nn :NERDTreeToggle<cr>
map <leader>ft :NERDTreeToggle<cr>
map <leader>nb :NERDTreeFromBookmark<Space>
map <leader>nf :NERDTreeFind<cr>

" => bufExplorer plugin            
let g:bufExplorerDefaultHelp=0
let g:bufExplorerShowRelativePath=1
let g:bufExplorerFindActive=1
let g:bufExplorerSortBy='name'
map <leader>o :BufExplorer<cr>

" Ag vim - silver searcher with ack.vim
let g:ackprg = 'ag --nogroup --nocolor --column'
map <leader>g :Ack 
 
""""""""""""""""""""""""""""""
" => CTRL-P
""""""""""""""""""""""""""""""
let g:ctrlp_working_path_mode = 0

let g:ctrlp_map = '<c-p>'
" map <leader>j :CtrlP<cr>
" map <c-p> :CtrlPBuffer<cr>
map <leader>bl :CtrlPBuffer<cr>
map <leader>zz :CtrlPMRU<cr>

let g:ctrlp_max_height = 20
let g:ctrlp_custom_ignore = 'node_modules\|^\.DS_Store\|^\.git\|^\.coffee|^\vendor'


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Helper functions
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Returns true if paste mode is enabled
function! HasPaste()
    if &paste
        return 'PASTE MODE  '
    endif
    return ''
endfunction

" Don't close window, when deleting a buffer
command! Bclose call <SID>BufcloseCloseIt()
function! <SID>BufcloseCloseIt()
    let l:currentBufNum = bufnr("%")
    let l:alternateBufNum = bufnr("#")

    if buflisted(l:alternateBufNum)
       buffer #
    else
        bnext
    endif

    if bufnr("%") == l:currentBufNum
        new
    endif

    if buflisted(l:currentBufNum)
        execute("bdelete! ".l:currentBufNum)
    endif
endfunction

function! CmdLine(str)
    call feedkeys(":" . a:str)
endfunction 

function! VisualSelection(direction, extra_filter) range
    let l:saved_reg = @"
    execute "normal! vgvy"

    let l:pattern = escape(@", "\\/.*'$^~[]")
    let l:pattern = substitute(l:pattern, "\n$", "", "")
    if a:direction == 'gv'
        call CmdLine("Ack '" . l:pattern . "' " )
    elseif a:direction == 'replace'
        call CmdLine("%s" . '/'. l:pattern . '/')
    endif

    let @/ = l:pattern
    let @" = l:saved_reg
endfunction