Neovim setup for OSX users

readme.md

Neovim setup for OSX users

This gist is a list of options and tricks to make the amazing neovim work on OSX, from a former long time vim user.

init.vim

syntax on
set ruler               " Show the line and column numbers of the cursor.
set formatoptions+=o    " Continue comment marker in new lines.
set textwidth=0         " Hard-wrap long lines as you type them.
set modeline            " Enable modeline.
set esckeys             " Cursor keys in insert mode.
set linespace=0         " Set line-spacing to minimum.
set nojoinspaces        " Prevents inserting two spaces after punctuation on a join (J)
" More natural splits
set splitbelow          " Horizontal split below current.
set splitright          " Vertical split to right of current.
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.
set showcmd                     " Show me what I'm typing
set showmode                    " Show current mode.
set noswapfile                  " Don't use swapfile
set nobackup            	" Don't create annoying backup files
set encoding=utf-8              " Set default encoding to UTF-8
set autowrite                   " Automatically save before :next, :make etc.
set autoread                    " Automatically reread changed files without asking me anything
set laststatus=2
set fileformats=unix,dos,mac    " Prefer Unix over Windows over OS 9 formats
set showmatch                   " Do not show matching brackets by flickering
set incsearch                   " Shows the match while typing
set hlsearch                    " Highlight found searches
set ignorecase                  " Search case insensitive...
set smartcase                   " ... but not when search pattern contains upper case characters
set autoindent
set tabstop=4 shiftwidth=4 expandtab
set gdefault            " Use 'g' flag by default with :s/foo/bar/.
set magic               " Use 'magic' patterns (extended regular expressions).

" Use <C-L> to clear the highlighting of :set hlsearch.
if maparg('<C-L>', 'n') ==# ''
  nnoremap <silent> <C-L> :nohlsearch<CR><C-L>
endif

" Search and Replace
nmap <Leader>s :%s//g<Left><Left>

" Leader key is like a command prefix. 
let mapleader='z'
let maplocalleader='\'

let g:python_host_prog="/usr/local/bin/python2.7"

let g:session_autosave = 'yes'
let g:session_autoload = 'yes'
let g:session_default_to_last = 1

" set cursorcolumn
nmap <Space> <PageDown>
vmap <BS> x

" cd ~/.config/nvim/spell
" wget http://ftp.vim.org/vim/runtime/spell/pt.utf-8.spl
" set spell spelllang=pt_pt
" zg to add word to word list
" zw to reverse
" zug to remove word from word list
" z= to get list of possibilities
" set spellfile=~/.config/nvim/spellfile.add
set nospell

" Plugins here
call plug#begin('~/.config/nvim/plugged')
Plug 'SirVer/ultisnips' | Plug 'honza/vim-snippets'
" Plug 'Shougo/deoplete.nvim'
Plug 'Valloric/YouCompleteMe'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'Chiel92/vim-autoformat'
Plug 'scrooloose/nerdtree'
Plug 'terryma/vim-multiple-cursors'
call plug#end()

" deoplete config
let g:deoplete#enable_at_startup = 1
let g:deoplete#disable_auto_complete = 1
if has("gui_running")
    inoremap <silent><expr><C-Space> deoplete#mappings#manual_complete()
else
    inoremap <silent><expr><C-@> deoplete#mappings#manual_complete()
endif

" UltiSnips config
inoremap <silent><expr><TAB> pumvisible() ? "\<C-n>" : "\<TAB>"
let g:UltiSnipsExpandTrigger="<tab>"
let g:UltiSnipsJumpForwardTrigger="<tab>"
let g:UltiSnipsJumpBackwardTrigger="<s-tab>"

" Tell Vim which characters to show for expanded TABs,
" trailing whitespace, and end-of-lines. VERY useful!
if &listchars ==# 'eol:$'
  " set listchars=tab:>\ ,trail:-,extends:>,precedes:<,nbsp:+
  set listchars=tab:>\ ,extends:>,precedes:<,nbsp:+
endif

" nerdtree config
map <C-n> :NERDTreeToggle<CR>

" airline settings
let g:airline#extensions#tabline#enabled = 2
let g:airline#extensions#tabline#fnamemod = ':t'
let g:airline#extensions#tabline#left_sep = ' '
let g:airline#extensions#tabline#left_alt_sep = '|'
let g:airline#extensions#tabline#right_sep = ' '
let g:airline#extensions#tabline#right_alt_sep = '|'
let g:airline_powerline_fonts=1
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_powerline_fonts=1
let g:airline_theme='molokai'

" Multicursor
let g:multi_cursor_use_default_mapping=0
let g:multi_cursor_next_key='<C-e>'
let g:multi_cursor_quit_key='<Esc>'
let g:multi_cursor_quit_key='<Esc>'

" YouCompleteMe
let g:ycm_autoclose_preview_window_after_completion = 1
let g:ycm_min_num_of_chars_for_completion = 1

" Other
set mouse=
set list

" Theme
colorscheme molokai256
highlight SignColumn guibg=#272822
let g:rehash256 = 1
let g:molokai_original=1
let NERDTreeIgnore = ['_site']

" Buffer handling
nmap L :let &number=1-&number<CR>
nmap <leader>l :bnext<CR>
nmap <c-h> :bprevious<CR>
nmap <leader>bq :bp <BAR> bd #<CR>
nmap <leader>bl :ls<CR>
nmap <leader>0 :set invnumber<CR>
" map :q to byffer delete
" http://stackoverflow.com/questions/7513380/vim-change-x-function-to-delete-buffer-instead-of-save-quit
cnoreabbrev <expr> q getcmdtype() == ":" && (getcmdline() == 'q' && len(filter(range(1, bufnr('$')), 'buflisted(v:val)')) > 1) ? 'bd' : 'q'

For those who can't get pip installed once doing brew install python, you can use sudo easy_install pip (to install pip in /usr/local/bin) to make the subsequent commands work.

TLDR; no one should need to be concerned about installing pip in 2020. These instructions are very dated, probably back to pre-2016. Update your system and python installation first.

pip has been bundled with python since 3.4. The oldest supported version of Python (as of this writing) is 3.6. Before you start working around a missing pip installation, I implore you to ensure your system is up-to-date and you're working with modern versions of python. If you have the misfortune of being constrained to python 2.7, note that pip has been bundled since 2.7.9.

If you've heeded my warnings and are moving forward with manually installing pip, the correct command is

python -m ensurepip --default-pip

I believe some kind of system clipboard sync is also desirable
like set clipboard+=unnamedplus

set esckeys is no longer supported

If you've heeded my warnings and are moving forward with manually installing pip, the correct command is

Might also just be called pip3, so pip3 install neovim. It whines a lot about deprecation and stuff though.