NeoVim Config - ~/.config/nvim/

coc-settings.json

{
  "suggest.noselect": false,
  "coc.preferences.formatOnSaveFiletypes": [
    "javascript",
    "typescript",
    "typescriptreact",
    "json",
    "javascriptreact",
    "typescript.tsx",
    "graphql"
  ]
}

init.vim

" Specify a directory for plugins
call plug#begin('~/.vim/plugged')

" Conquer of Completion (autocompletion)
Plug 'neoclide/coc.nvim', {'branch': 'release'}

" Git diff markers
Plug 'airblade/vim-gitgutter'

" File system explorer
Plug 'scrooloose/nerdtree'
Plug 'Xuyuanp/nerdtree-git-plugin'
Plug 'tiagofumo/vim-nerdtree-syntax-highlight'
Plug 'ryanoasis/vim-devicons'

" Fuzzy find files
Plug 'ctrlpvim/ctrlp.vim'

" Commenter
Plug 'preservim/nerdcommenter'

" Seamless navigation between tmux panes and vim splits
Plug 'christoomey/vim-tmux-navigator'

" TS Syntax
Plug 'HerringtonDarkholme/yats.vim'

" Initialize plugin system
call plug#end()

""" NERD Config
inoremap jk <ESC>
nmap <C-n> :NERDTreeToggle<CR>
vmap ++ <plug>NERDCommenterToggle
nmap ++ <plug>NERDCommenterToggle

" Open NERDTree automatically
"autocmd StdinReadPre * let s:std_in=1
"autocmd VimEnter * NERDTree

" Sync open file with NERDTree
" Check if NERDTree is open or active
function! IsNERDTreeOpen()        
  return exists("t:NERDTreeBufName") && (bufwinnr(t:NERDTreeBufName) != -1)
endfunction

" Call NERDTreeFind iff NERDTree is active, current window contains a modifiable
" file, and we're not in vimdiff
function! SyncTree()
  if &modifiable && IsNERDTreeOpen() && strlen(expand('%')) > 0 && !&diff
    NERDTreeFind
    wincmd p
  endif
endfunction

let g:NERDTreeGitStatusWithFlags = 1
"let g:WebDevIconsUnicodeDecorateFolderNodes = 1
"let g:NERDTreeGitStatusNodeColorization = 1
"let g:NERDTreeColorMapCustom = {
    "\ "Staged"    : "#0ee375",  
    "\ "Modified"  : "#d9bf91",  
    "\ "Renamed"   : "#51C9FC",  
    "\ "Untracked" : "#FCE77C",  
    "\ "Unmerged"  : "#FC51E6",  
    "\ "Dirty"     : "#FFBD61",  
    "\ "Clean"     : "#87939A",   
    "\ "Ignored"   : "#808080"   
    "\ }

let g:NERDTreeIgnore = ['^node_modules$']

""" Vim Prettier
"let g:prettier#quickfix_enabled = 0
"let g:prettier#quickfix_auto_focus = 0
" prettier command for coc
command! -nargs=0 Prettier :CocCommand prettier.formatFile
" run prettier on save
"let g:prettier#autoformat = 0
"autocmd BufWritePre *.js,*.jsx,*.mjs,*.ts,*.tsx,*.css,*.less,*.scss,*.json,*.graphql,*.md,*.vue,*.yaml,*.html PrettierAsync

""" CtrlP Config
let g:ctrlp_user_command = ['.git/', 'git --git-dir=%s/.git ls-files -oc --exclude-standard']

""" Vim Config
set number
"set relativenumber
set smarttab
set cindent
set expandtab " Always uses spaces instead of tab characters

set tabstop=2
set shiftwidth=2

" j/k will move virtual lines (lines that wrap)
noremap <silent> <expr> j (v:count == 0 ? 'gj' : 'j')
noremap <silent> <expr> k (v:count == 0 ? 'gk' : 'k')

" Highlight currently open buffer in NERDTree
autocmd BufEnter * call SyncTree()

""" CoC Config
let g:coc_global_extensions = [
  \ 'coc-snippets',
  \ 'coc-pairs',
  \ 'coc-tsserver',
  \ 'coc-eslint', 
  \ 'coc-prettier', 
  \ 'coc-json', 
  \ ]

" TextEdit might fail if hidden is not set.
set hidden
set updatetime=300

" Don't give |ins-completion-menu| messages.
set shortmess+=c

" Always show signcolumns
set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate.
" Use command ':verbose imap <tab>' to make sure tab is not mapped by other plugin.
inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

" Use <c-space> to trigger completion.
inoremap <silent><expr> <c-space> coc#refresh()

" Use <cr> to confirm completion, `<C-g>u` means break undo chain at current position.
" Coc only does snippet and additional edit on confirm.
inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
" Or use `complete_info` if your vim support it, like:
" inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"

" Use `[g` and `]g` to navigate diagnostics
nmap <silent> [g <Plug>(coc-diagnostic-prev)
nmap <silent> ]g <Plug>(coc-diagnostic-next)

" Remap keys for gotos
nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gy <Plug>(coc-type-definition)
nmap <silent> gi <Plug>(coc-implementation)
nmap <silent> gr <Plug>(coc-references)

" Use K to show documentation in preview window
nnoremap <silent> K :call <SID>show_documentation()<CR>

function! s:show_documentation()
  if (index(['vim','help'], &filetype) >= 0)
    execute 'h '.expand('<cword>')
  else
    call CocAction('doHover')
  endif
endfunction

" Highlight symbol under cursor on CursorHold
autocmd CursorHold * silent call CocActionAsync('highlight')

" Remap for rename current word
nmap <F2> <Plug>(coc-rename)

" Remap for format selected region
xmap <leader>f  <Plug>(coc-format-selected)
nmap <leader>f  <Plug>(coc-format-selected)

augroup mygroup
  autocmd!
  " Setup formatexpr specified filetype(s).
  autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
  " Update signature help on jump placeholder
  autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
augroup end