personal vimrc for use with neovim

.vimrc

" Plugin Installation through Vim-Plug
"       https://github.com/junegunn/vim-plug
call plug#begin('~/.vim/plugged')

"   - Editing Helpers -
"       surround.vim
"       quoting / paranthesizing made simple
"       https://github.com/tpope/vim-surround
Plug 'tpope/vim-surround'

"       vim-lastplace Reopen files at the last edit position.
"       https://github.com/farmergreg/vim-lastplace
Plug 'farmergreg/vim-lastplace'

"       Auto Pairs
"       Automatically close braces.
"       https://github.com/jiangmiao/auto-pairs
Plug 'jiangmiao/auto-pairs'



"   - Programming -
"       ALE
"       Asynchronous Lint Engine
"       https://github.com/w0rp/ale
Plug 'w0rp/ale'

"       sqlint
"       SQL Linter for ALE
"       https://github.com/purcell/sqlint
Plug 'purcell/sqlint',                            { 'for': 'sql' }

"       dispatch.vim
"       Asynchronously run commands.
"       https://github.com/tpope/vim-dispatch
Plug 'tpope/vim-dispatch',                        { 'on': ['Make', 'Dispatch'] }



"   - Autocompletion -
"       deoplete
"       asynchronous keyword completion system
"       https://github.com/Shougo/deoplete.nvim
Plug 'Shougo/deoplete.nvim',                      { 'do': ':UpdateRemotePlugins' }

"       deoplete: Python
"       deoplete source for Python
"       https://github.com/zchee/deoplete-jedi
Plug 'zchee/deoplete-jedi',                       { 'for': 'python' }

"       deoplete: C++
"       deoplete source for C++
"       https://github.com/zchee/deoplete-clang
Plug 'zchee/deoplete-clang',                      { 'for': 'cpp' }

"       SuperTab
"       Use <Tab> for all insert completions.
"       https://github.com/ervandew/supertab
Plug 'ervandew/supertab'



"   - Interface -
"       Startify
"       A fancy start screen.
"       https://github.com/mhinz/vim-startify
Plug 'mhinz/vim-startify'

"       Airline
"       A status / tabline that's light as air.
"       https://github.com/vim-airline/vim-airline
Plug 'vim-airline/vim-airline'

"       Airline Themes
"       Various themes for the Airline plugin.
"       https://github.com/vim-airline/vim-airline-themes
Plug 'vim-airline/vim-airline-themes'

"       vim-virtualenv
"       Python virtualenv Support.
"       https://github.com/jmcantrell/vim-virtualenv
Plug 'jmcantrell/vim-virtualenv',                 { 'on': ['VirtualEnvActivate', 'VirtualEnvDeactivate', 'VirtualEnvList'] }

"       vim-cute-python
"       Use unicode characters for several built-in functions and operators
"       https://github.com/ehamberg/vim-cute-python
Plug 'ehamberg/vim-cute-python',                  { 'for': 'python' }

"       WakaTime
"       Track coding time
"       https://github.com/wakatime/vim-wakatime
Plug 'wakatime/vim-wakatime'



"   - Editor Design -
"       NERD Tree
"       file system explorer plugin
"       https://github.com/scrooloose/nerdtree
Plug 'scrooloose/nerdtree',                       { 'on': 'NERDTreeToggle' }

"       NERD Tree: Git Plugin
"       Shows Git file status in NERD Tree
"       https://github.com/Xuyuanp/nerdtree-git-plugin
Plug 'Xuyuanp/nerdtree-git-plugin',               { 'on': 'NERDTreeToggle' }

"       Fugitive
"       Git Wrapper with various git-related commands.
"       https://github.com/tpope/vim-fugitive
Plug 'tpope/vim-fugitive'

"       Git Gutter
"       Shows Git line status in the sign column (gutter)
"       https://github.com/airblade/vim-gitgutter
Plug 'airblade/vim-gitgutter'



"   - Colorschemes -
"       Gruvbox
"       Retro-inspired Color Scheme
"       https://github.com/morhetz/gruvbox
Plug 'morhetz/gruvbox'

call plug#end()




"   - Plugin Configuration -
"       deoplete
"           Use deoplete at startup.
let g:deoplete#enable_at_startup = 1

"           Show a maximum of 10 autocompletion suggestions.
let g:deoplete#max_list = 10

"       deoplete-jedi
"           Use Python 3 instead of Python 2.7.
let g:deoplete#sources#jedi#python_path = '/usr/local/bin/python3'

"       deoplete-clang
"           Set path for libclang and headers.
let g:deoplete#sources#clang#libclang_path='/usr/local/Cellar/llvm/5.0.1/lib/libclang.dylib'
let g:deoplete#sources#clang#clang_header='/usr/local/Cellar/llvm/5.0.1/lib/clang/'

"       SuperTab
"           Navigate the completion menu from top to bottom.
let g:SuperTabDefaultCompletionType = "<c-n>"

"       Airline
"           Use Powerline Fonts
let g:airline_powerline_fonts = 1

"           Diplay buffers in tabline when there's only one tab open.
let g:airline#extensions#tabline#enabled = 1

"           Enable Bufferline integration
let g:airline#extensions#bufferline#enabled = 1

"           Enable ALE integration
let g:airline#extensions#ale#enabled = 1

"       ALE
"           Always show the sign gutter for ALE
let g:ale_sign_column_always = 1


"           Run linters one second after text changed
let g:ale_lint_delay = 1000

"           Directory names to be used when searching for Virtualenv directories
" let g:ale_virtualenv_dir_names = ['.env', 'env', 've-py3', 've', 'venv', 'virtualenv']

"           Use the Python 3 versions of various tools
"           instead of the default one that ALE can obtain.
let g:ale_python_pylint_executable = ''
let g:ale_python_pylint_options = '-m pylint --max-line-length 120'
let g:ale_python_autopep8_executable = 'autopep8'
let g:ale_python_autopep8_options = '--in-place --aggressive --aggressive --experimental --ignore-local-config --max-line-length 120 --jobs 4'
let g:ale_python_flake8_executable = 'python3'
let g:ale_python_flake8_options = '-m flake8 --max-line-length=120'
let g:ale_python_mypy_executable = ''
let g:ale_python_yapf_executable = 'yapf'
let g:ale_python_yapf_options = '--parallel --in-place --recursive'
let g:ale_echo_msg_error_str = 'E'
let g:ale_echo_msg_warning_str = 'W'
let g:ale_echo_msg_format = '[%linter%] %s [%severity%]'

"           Configure fixers for :ALEFix
let g:ale_fixers = {
\   'python': [
\       'autopep8',
\       'isort',
\       'remove_trailing_lines',
\       'yapf'
\   ]
\}



"   - Vim Color Configuration -
"       From:          https://www.reddit.com/r/unixporn/comments/5vke7s/osx_iterm2_tmux_vim/
"       Screenshots:   http://imgur.com/a/6OIdz
hi LineNr ctermfg=237
hi StatusLine ctermfg=235 ctermbg=245
hi StatusLineNC ctermfg=235 ctermbg=237
hi Search ctermbg=58 ctermfg=15
hi Default ctermfg=1
hi clear SignColumn
hi SignColumn ctermbg=235
hi GitGutterAdd ctermbg=235 ctermfg=245
hi GitGutterChange ctermbg=235 ctermfg=245
hi GitGutterDelete ctermbg=235 ctermfg=245
hi GitGutterChangeDelete ctermbg=235 ctermfg=245
hi EndOfBuffer ctermfg=237 ctermbg=235

"       Colorscheme Configuration
let g:gruvbox_italics = 1
set background=dark
colorscheme gruvbox



"   - Keymaps -
"       Toggle NERD Tree with CTRL-N
map <C-n> :NERDTreeToggle<CR>
"       Toggle Git Status with CTRL-G
map <C-g> :Gstatus<CR>



"   - Vim Editing Configuration -
"       Copy indent from the current line on inserting an newline
set autoindent

"       Make Tab insert spaces
set expandtab

"       Insert 4 spaces for a Tab
set tabstop=4

"       Use 4 space characters for indentation
set shiftwidth=4

"       Overrides 'ignorecase' if the pattern contains uppercase characters.
set smartcase

"       Show the line numbers
set number

"       Disable swap files
set noswapfile

"       Do not show the default mode text (e.g. -- INSERT --)
set noshowmode

"       Don't preview documentation for completion
set completeopt-=preview

"       Find search matches incrementally
set incsearch

"       Do not change the cursor to '|' in insert mode.
set guicursor=

"       Make Neovim work nicely in virtual environments
let g:python_host_prog='/usr/local/bin/python'
let g:python3_host_prog='/usr/local/bin/python3'

"     Exit Terminal Mode with CTRL-k
tnoremap <C-k> <C-\><C-n>

" Fix weird Shift-Space interaction
imap <S-Space> <Space>