vimrc

let mapleader = "\\"

" ====================
" Set color scheme
" ====================
syntax enable
set background=dark
colorscheme solarized

" ====================
" mouse options
" ====================
if has("mouse")
  set mouse=a
endif

" ====================
" search
" ====================
set ignorecase

" ====================
" generic options
" ====================
set nobackup
set noswapfile
set incsearch

" ====================
" visual options
" ====================
filetype plugin indent on
set showmode
set title
set ruler
set showcmd
set showmatch
set laststatus=2
set cursorline
set ttyfast
set autoread
" spaces
set tabstop=2
set softtabstop=0
set shiftwidth=2
set smarttab
set number

set wildmenu
set history=5000

" disable folding
set nofoldenable


" Set IME disable
set imdisable
set completeopt=menuone

" Set for powerline
set guifont=Menlo:h12
set encoding=UTF-8

" Note: Skip initialization for vim-tiny or vim-small.
if !1 | finish | endif

if has('vim_starting')
 if &compatible
   set nocompatible               " Be iMproved
 endif


if !filereadable(expand('~/.vim/autoload/plug.vim'))
    ! curl -fLo ~/.vim/autoload/plug.vim --create-dirs https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
endif

" Specify a directory for plugins (for Neovim: ~/.local/share/nvim/plugged)
call plug#begin('~/.vim/plugged')

" Start bundle setups
" ====================
" General
" ====================
Plug 'bronson/vim-trailing-whitespace'
Plug 'leshill/vim-json', {'for': 'json'}
" Plug 'powerline/powerline', {'rtp': 'powerline/bindings/vim/'}
Plug 'jiangmiao/auto-pairs'
Plug 'editorconfig/editorconfig-vim'
Plug 'tpope/vim-surround'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'

let g:airline_theme='solarized'
let g:airline_solarized_bg='dark'

" ====================
" NerdTree
" ====================
Plug 'scrooloose/nerdtree'
let NERDTreeShowHidden=1
Plug 'scrooloose/nerdcommenter'
" autocmd StdinReadPre * let s:std_in=1
" autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif
nnoremap <silent> <Leader>n :NERDTreeToggle<CR>
nnoremap <silent> <Leader>r :NERDTreeFind<CR>


" Add spaces after comment delimiters by default
let g:NERDSpaceDelims = 1
" " Use compact syntax for prettified multi-line comments
let g:NERDCompactSexyComs = 1
" " Align line-wise comment delimiters flush left instead of following code indentation
let g:NERDDefaultAlign = 'left'
" " Add your own custom formats or override the defaults
" let g:NERDCustomDelimiters = { 'c': { 'left': '/**','right': '*/' } }
" " Enable trimming of trailing whitepace when uncommenting
let g:NERDTrimTrailingWhitespace = 1

" ====================
" Unite
" ====================
Plug 'Shougo/unite.vim'
Plug 'Shougo/neomru.vim'
Plug 'Shougo/neoyank.vim'
Plug 'Shougo/vimproc.vim', { 'dir': '~/.vim/plugged/vimproc.vim', 'do': 'make' }
Plug 'ctrlpvim/ctrlp.vim'

let g:ctrlp_user_command = ['.git', 'cd %s && git ls-files -co --exclude-standard']
let g:unite_enable_start_insert=0
let g:unite_source_history_yank_enable=1
let g:unite_source_file_mru_limit=50
let g:unite_source_file_mru_filename_format=''

" Current Dir
noremap <C-c> :UniteWithBufferDir -buffer-name=files file<CR>
" recent list
noremap <C-M> :Unite file_mru<CR>
" buffer list
noremap <C-P> :Unite buffer<CR>
" open bookmark
noremap <C-B> :Unite bookmark<CR>
" list
noremap <C-N> :Unite -buffer-name=file file<CR>
" yank history
noremap <C-Y> :Unite history/yank<CR>

" split
au FileType unite nnoremap <silent> <buffer> <expr> <C-J> unite#do_action('split')
au FileType unite inoremap <silent> <buffer> <expr> <C-J> unite#do_action('split')
" Split vertical
au FileType unite nnoremap <silent> <buffer> <expr> <C-l> unite#do_action('vsplit')
au FileType unite inoremap <silent> <buffer> <expr> <C-l> unite#do_action('vsplit')
" end with 2 ESC key
au FileType unite nnoremap <silent> <buffer> <ESC><ESC> :q<CR>
au FileType unite inoremap <silent> <buffer> <ESC><ESC> <ESC>:q<CR>

" ====================
" Programming
" ====================

" General
Plug 'neoclide/coc.nvim', {'branch': 'release'}
" TextEdit might fail if hidden is not set.
set hidden

" Some servers have issues with backup files, see #649.
set nobackup
set nowritebackup

" Give more space for displaying messages.
set cmdheight=2

" Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable
" delays and poor user experience.
set updatetime=300

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

" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved.
set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate.
" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
" other plugin before putting this into your config.
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.
if has('patch8.1.1068')
  " Use `complete_info` if your (Neo)Vim version supports it.
  inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"
else
  imap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
endif

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

" GoTo code navigation.
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 the symbol and its references when holding the cursor.
autocmd CursorHold * silent call CocActionAsync('highlight')

" Symbol renaming.
nmap <leader>rn <Plug>(coc-rename)

" Formatting selected code.
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

" Applying codeAction to the selected region.
" Example: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap keys for applying codeAction to the current line.
nmap <leader>ac  <Plug>(coc-codeaction)
" Apply AutoFix to problem on the current line.
nmap <leader>qf  <Plug>(coc-fix-current)

" Introduce function text object
" NOTE: Requires 'textDocument.documentSymbol' support from the language server.
xmap if <Plug>(coc-funcobj-i)
xmap af <Plug>(coc-funcobj-a)
omap if <Plug>(coc-funcobj-i)
omap af <Plug>(coc-funcobj-a)

" Use <TAB> for selections ranges.
" NOTE: Requires 'textDocument/selectionRange' support from the language server.
" coc-tsserver, coc-python are the examples of servers that support it.
nmap <silent> <TAB> <Plug>(coc-range-select)
xmap <silent> <TAB> <Plug>(coc-range-select)

" Add `:Format` command to format current buffer.
command! -nargs=0 Format :call CocAction('format')

" Add `:Fold` command to fold current buffer.
command! -nargs=? Fold :call     CocAction('fold', <f-args>)

" Add `:OR` command for organize imports of the current buffer.
command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')

" Add (Neo)Vim's native statusline support.
" NOTE: Please see `:h coc-status` for integrations with external plugins that
" provide custom statusline: lightline.vim, vim-airline.
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

" Mappings using CoCList:
" Show all diagnostics.
nnoremap <silent> <space>a  :<C-u>CocList diagnostics<cr>
" Manage extensions.
nnoremap <silent> <space>e  :<C-u>CocList extensions<cr>
" Show commands.
nnoremap <silent> <space>c  :<C-u>CocList commands<cr>
" Find symbol of current document.
nnoremap <silent> <space>o  :<C-u>CocList outline<cr>
" Search workspace symbols.
nnoremap <silent> <space>s  :<C-u>CocList -I symbols<cr>
" Do default action for next item.
nnoremap <silent> <space>j  :<C-u>CocNext<CR>
" Do default action for previous item.
nnoremap <silent> <space>k  :<C-u>CocPrev<CR>
" Resume latest coc list.
nnoremap <silent> <space>p  :<C-u>CocListResume<CR>

" Go
Plug 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }

" Initialize plugin system
call plug#end()
endif