My vim config

.vimrc

" kill vi compatibility
syntax enable
set fileformat=unix
set hidden
set number " always show line numbers

filetype plugin indent on

set tabstop=2 " 2 spaces per tab
set shiftwidth=2 " when indenting with > use 2 spaces
set expandtab " on pressing tab, insert 2 spaces

" show invisibles
set list
set listchars=tab:>-,trail:…,extends:>,precedes:<
" some symbols to use Ω≈ç√∫˜µ≤≥÷«æ¬˚∆˙©ƒ∂ßåœ∑´®†\¨ˆøπ““‘≠≠–ºª•¶§∞¢£™¡

set autoread " automatically reload open files if they have not been edited
" Triger `autoread` when files changes on disk
" https://unix.stackexchange.com/questions/149209/refresh-changed-content-of-file-opened-in-vim/383044#383044
" https://vi.stackexchange.com/questions/13692/prevent-focusgained-autocmd-running-in-command-line-editing-mode
autocmd FocusGained,BufEnter,CursorHold,CursorHoldI * if mode() != 'c' | checktime | endif
" Notification after file change
" https://vi.stackexchange.com/questions/13091/autocmd-event-for-autoread autocmd FileChangedShellPost *
  \ echohl WarningMsg | echo "File changed on disk. Buffer reloaded." | echohl None

" why isn't space the default leader key??
map <SPACE> <leader>

" plugin setup
if empty(glob('~/.vim/autoload/plug.vim'))
  silent !curl -fLo ~/.vim/autoload/plug.vim --create-dirs
    \ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
  autocmd VimEnter * PlugInstall --sync | source $MYVIMRC
endif

call plug#begin('~/.vim/plugged')

Plug 'junegunn/vim-easy-align'                          " easily align text nicely, see mappings below
Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeToggle' } " file manager
Plug 'fatih/vim-go' " go syntax
Plug 'nsf/gocode' " go autocompletion
Plug 'pangloss/vim-javascript'                          " javascript syntax
Plug 'godlygeek/tabular'
Plug 'mattn/emmet-vim'
Plug 'vim-airline/vim-airline'                          " status bar
Plug 'vim-airline/vim-airline-themes'
Plug 'scrooloose/nerdcommenter'                         " nice commenting support
Plug 'majutsushi/tagbar'
Plug 'airblade/vim-gitgutter'
Plug 'lifepillar/vim-solarized8' " nice color theme yay
Plug 'ctrlpvim/ctrlp.vim'
Plug 'tpope/vim-surround'
Plug 'tpope/vim-fugitive'                               " git support :D
Plug 'rust-lang/rust.vim'
Plug 'Xuyuanp/nerdtree-git-plugin'
Plug 'prettier/vim-prettier', { 'do': 'npm install' }
Plug 'editorconfig/editorconfig-vim'
Plug 'wesQ3/vim-windowswap'
Plug 'w0rp/ale'
Plug 'mxw/vim-jsx'
Plug 'skywind3000/asyncrun.vim'
Plug 'vim-latex/vim-latex'
Plug 'leafgarland/typescript-vim'                       " typescript: syntax highlighting
Plug 'reasonml-editor/vim-reason-plus'
Plug 'autozimu/LanguageClient-neovim', {
  \ 'branch': 'next',
  \ 'do': 'bash install.sh'
  \ }
Plug 'junegunn/fzf'                                     " fuzzy file finder
Plug 'Shougo/deoplete.nvim'
Plug 'roxma/nvim-yarp'
Plug 'roxma/vim-hug-neovim-rpc'
Plug 'lokaltog/vim-easymotion'                          " highlight words with <leader>w for swift movement across a document
Plug 'Olical/vim-enmasse'                               " apply quick linting fixes easily with :EnMasse
Plug 'mileszs/ack.vim'                                  " pattern search with :Ack [options] {pattern} [{directories}]
Plug 'morhetz/gruvbox' " nice theme apparently

" the path to python3 is obtained through executing `:echo exepath('python3')` in vim
let g:python3_host_prog = "/absolute/path/to/python3"

" Initialize plugin system 
call plug#end()

" Start interactive EasyAlign in visual mode (e.g. vipga)
xmap ga <Plug>(EasyAlign)

" Start interactive EasyAlign for a motion/text object (e.g. gaip)
nmap ga <Plug>(EasyAlign)

let g:tex_flavor                              = 'latex'

let g:javascript_plugin_jsdoc                 = 1
let g:javascript_plugin_flow                  = 1

let g:javascript_conceal_function             = "ƒ"
let g:javascript_conceal_null                 = "ø"
let g:javascript_conceal_this                 = "@"

let g:javascript_conceal_return               = "⇚"
let g:javascript_conceal_undefined            = "¿"
let g:javascript_conceal_NaN                  = "ℕ"
let g:javascript_conceal_prototype            = "¶"
let g:javascript_conceal_static               = "•"
let g:javascript_conceal_super                = "Ω"
let g:javascript_conceal_arrow_function       = "⇒"
let g:javascript_conceal_noarg_arrow_function = "_"
" let g:javascript_conceal_underscore_arrow_function = ""

set conceallevel=1

nmap <F8> :TagbarToggle<CR>

set statusline+=%#warningmsg#
set statusline+=%*

let g:rustfmt_autosave = 1
" :ALEFix will try and fix your JS code with ESLint.
"\    'javascript': ['eslint'],
"\    'javascript': ['standard', 'prettier']
"
let g:ale_fixers = {
\    'typescript': ['prettier', 'tslint'],
\}
let g:ale_linters = {
\    'typescript': ['tslint', 'tsserver', 'typecheck'],
\    'javascript': ['semistandard']
\}
" let g:ale_javascript_prettier_options = ''

let g:ale_fix_on_save        = 1
let g:ale_completion_enabled = 1

let g:user_emmet_leader_key  = '<Tab>'
let g:user_emmet_settings    = {
\  'javascript.jsx': {
\      'extends':  'jsx',
\  },
\}


" shortcuts for NERDTree
map <C-n> :NERDTreeToggle<CR>
map <C-f> <Esc>:NERDTreeFind<CR> "Find the current file in the file browser
" ignore folders in nerdtree
let g:NERDTreeIgnore=['node_modules', '.git', 'build']
let g:NERDTreeNodeDelimiter = "\u00a0"

" normal mode shortcut, #noescapekey #thanksapple
imap jj <Esc>

" ctrl+p config
let g:ctrlp_show_hidden = 1
set wildignore+=*/.git/*,*/.hg/*,*/.svn/*,*/node_modules/*,*/mysql/*,*/.wercker/*
let g:ctrlp_custom_ignore = 'node_modules\|DS_Store\|git|mysql\|.wercker\|katalon\|dist'

" fuzzy file finder config?
set rtp+=/usr/local/opt/fzf
let g:Tex_ViewRule_dvi=''

" Language completion setup
let g:LanguageClient_serverCommands = {
  \ 'rust': ['~/.cargo/bin/rustup', 'run', 'stable', 'rls'],
  \ 'javascript': ['/usr/local/bin/javascript-typescript-stdio'],
  \ 'javascript.jsx': ['tcp://127.0.0.1:2089'],
  \ 'python': ['/usr/local/bin/pyls'],
  \ 'reason': ['~/bin/reason-language-server.exe']
  \ }

"let g:deoplete#enable_at_startup = 1

set exrc

" Configure omni-completion's popup menu
" http://vim.wikia.com/wiki/Make_Vim_completion_popup_menu_work_just_like_in_an_IDE
set completeopt=longest,menuone
inoremap <expr> <CR> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
inoremap <expr> <C-n> pumvisible() ? '<C-n>' :
  \ '<C-n><C-r>=pumvisible() ? "\<lt>Down>" : ""<CR>'
inoremap <expr> <M-,> pumvisible() ? '<C-n>' :
  \ '<C-x><C-o><C-n><C-p><C-r>=pumvisible() ? "\<lt>Down>" : ""<CR>'
" open omni completion menu closing previous if open and opening new menu without changing the text
"inoremap <expr> <C-Space> (pumvisible() ? (col('.') > 1 ? '<Esc>i<Right>' : '<Esc>i') : '') .
            "\ '<C-x><C-o><C-r>=pumvisible() ? "\<lt>C-n>\<lt>C-p>\<lt>Down>" : ""<CR>'
" open user completion menu closing previous if open and opening new menu without changing the text
"inoremap <expr> <S-Space> (pumvisible() ? (col('.') > 1 ? '<Esc>i<Right>' : '<Esc>i') : '') .
            "\ '<C-x><C-u><C-r>=pumvisible() ? "\<lt>C-n>\<lt>C-p>\<lt>Down>" : ""<CR>'

" allows vim-gitgutter to show diff sooner
set updatetime=100

" open auto-complete with ctrl space
"inoremap <C-Space> <C-x><C-o>
"imap <C-@> <C-Space>

" map ale intellisense functions to some hot keys
nnoremap <leader>h :ALEHover<CR>
nnoremap <leader>d :ALEGoToDefinition<CR>
nnoremap <leader>r :ALEFindReferences<CR>

" some solarised color fixes for tmux
let &t_8f = "\<Esc>[38;2;%lu;%lu;%lum"
let &t_8b = "\<Esc>[48;2;%lu;%lu;%lum"

set background=light
" colorscheme solarized8_flat