init.vim

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Install plugins.
" Specify a directory for plugins
call plug#begin('~/.vim/plugged')
Plug 'Raimondi/delimitMate'
Plug 'mg979/vim-visual-multi', {'branch': 'master'}

let delimitMate_expand_cr=1
Plug 'numirias/semshi', {'do': ':UpdateRemotePlugins'}
" Code completion.
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'octol/vim-cpp-enhanced-highlight'
let g:cpp_class_scope_highlight = 1
" Adds file type icons to Vim plugins.
" Get a Nerd Font! or patch your own. Without this, things break
"Plug 'ryanoasis/vim-devicons' "

"Plug 'airblade/vim-gitgutter'
"Plug 'prettier/vim-prettier', { 'do': 'yarn install' }
Plug 'Yggdroot/indentLine'
" Plugin offers tree view of files.
Plug 'preservim/nerdtree'
" Make NERDTree tabs more comfortable.
"Plug 'jistr/vim-nerdtree-tabs'"
"Plug 'SirVer/ultisnips'
Plug 'honza/vim-snippets'
"let g:UltiSnipsExpandTrigger="<tab>"
"let g:UltiSnipsJumpForwardTrigger="<c-b>"
"let g:UltiSnipsJumpBackwardTrigger="<c-z>"

" Fuzzy finder.
"Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }

" Beautify vim statsline.
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'


" colorscheme
Plug 'morhetz/gruvbox'
Plug 'HerringtonDarkholme/yats.vim' " TS Syntax
 
Plug 'easymotion/vim-easymotion'
" Auto generate documentation.
Plug 'kkoomen/vim-doge'


" Rainbow bracket to make bracket more readable.
Plug 'luochen1990/rainbow'

" Bring smooth scrolling to vim.
Plug 'yuttie/comfortable-motion.vim'

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

" Tagbar
Plug 'majutsushi/tagbar'

" Vim surrond
Plug 'tpope/vim-surround'

" Vim fzf, need install fzf first.
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'junegunn/fzf.vim'


" quick cscope
"Plug 'ronakg/quickr-cscope.vim'

" Jedi vim, go to definition.


" Multiple selection
"Plug 'terryma/vim-multiple-cursors'

call plug#end()

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" config for multiple selection

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" qucik cscope
let g:quickr_cscope_keymaps = 0
nmap <C-s>c <plug>(quickr_cscope_callers)

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Fzf settings.
let g:fzf_buffers_jump = 1
let g:fzf_tags_command = 'ctags -R'
let g:fzf_commands_expect = 'alt-enter,ctrl-x'


" nerdcommenter settings.
" Use <ctrl-/> to toggle comments in code.
nmap <C-_>   <Plug>NERDCommenterToggle
vmap <C-_>   <Plug>NERDCommenterToggle<CR>gv


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" doge settings.
" Choose one documentation style.
"let g:doge_doc_standard_python = 'numpy'
let g:doge_doc_standard_python = 'google'
" let g:doge_doc_standard_python = 'reST'

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
"fzf
"let g:fzf_layout = { 'left': '~70%' }
"let g:fzf_layout={'up': '70%'}
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
map <F5> :call CompileRunGcc()<CR>
func! CompileRunGcc()
exec "w"
if &filetype == 'c'
exec "!clang  % -o %<"
exec "!time ./%<"
elseif &filetype == 'cpp'
exec "!clang++ -std=c++11 % -o %<"
exec "!time ./%<"
exec "!rm %<"
elseif &filetype == 'ruby'
exec "!time ruby %"
elseif &filetype == 'java'
exec "!javac %"
exec "!time java %<"
elseif &filetype == 'sh'
:!time bash %
elseif &filetype == 'python'
exec "!time python3 %"
elseif &filetype == 'html'
exec "!firefox % &"
elseif &filetype == 'go'
" exec "!go build %<"
exec "!time go run %"
elseif &filetype == 'mkd'
exec "!~/.vim/markdown.pl % > %.html &"
exec "!firefox %.html &"
endif
endfunc

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" rainbow settings.
" Activate rainbow plugin.
let g:rainbow_active = 1

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" NERDTree settings

" open a NERDTree automatically when vim starts up if no files were specified
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif

" Open file in new tab by default.
" let NERDTreeMapOpenInTab='<ENTER>'
let NERDTreeCustomOpenArgs={'file':{'where': 't'}}


" open NERDTree automatically when vim starts up on opening a directory
" autocmd StdinReadPre * let s:std_in=1
" autocmd VimEnter * if argc() == 1 && isdirectory(argv()[0]) && !exists("s:std_in") | exe 'NERDTree' argv()[0] | wincmd p | ene | exe 'cd '.argv()[0] | endif

" map a specific key or shortcut to open NERDTree
"map <C-n> :NERDTreeToggle<CR>
nnoremap <C-n> :NERDTreeToggle<CR>


" close vim if the only window left open is a NERDTree
" autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif

" Let NERDTree igonre files
let NERDTreeIgnore = ['\.pyc$', '\.swp$', '__pycache__$']

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Status line, use `:help coc-status` to see more info.
let g:airline#extensions#tabline#enabled = 1
let airline#extensions#coc#error_symbol = ''
let airline#extensions#coc#warning_symbol = '  '
let g:airline_theme='badwolf'  "可以自定义主题，这里使用 badwolf
" let g:lightline = {
" \ 'colorscheme': 'badwolf',
" \ 'active': {
" \   'left': [ [ 'mode', 'paste' ],
" \             [ 'cocstatus', 'readonly', 'filename', 'modified' ] ]
" \ },
" \ 'component_function': {
" \   'cocstatus': 'coc#status'
" \ },
" \ }
"set statusline^=%{StatusDiagnostic()}%{get(b:,'coc_current_function','')}

" autocmd User CocStatusChange,CocDiagnosticChange call lightline#update()

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" tagbar settings
nmap <F8> :TagbarToggle<CR>
" Do not auto preview tag.
let g:tagbar_autopreview=0

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" vim fzf
" Always enable preview window on the right with 60% width
"let g:fzf_preview_window = 'right:60%'

" [Tags] Command to generate tags file
"let g:fzf_tags_command = 'ctags -R'

"" [[B]Commits] Customize the options used by 'git log':
"let g:fzf_commits_log_options = '--graph --color=always --format="%C(auto)%h%d %s %C(black)%C(bold)%cr"'

"" [Commands] --expect expression for directly executing the command
"let g:fzf_commands_expect = 'alt-enter,ctrl-x'


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
"height ligth cusor
set bg=dark
set cursorline
set cursorcolumn
 
highlight CursorLine cterm=none ctermbg=236
highlight CursorColumn cterm=none ctermbg=236
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" coc.vim settings.
" 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() ? coc#_select_confirm() :
      \ coc#expandableOrJumpable() ? "\<C-r>=coc#rpc#request('doKeymap', ['snippets-expand-jump',''])\<CR>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()

function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction
inoremap <expr> <S-Tab> pumvisible() ? "\<C-n>" : "\<S-Tab>"
let g:coc_snippet_next = '<tab>'
" 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)
 

" Remap for symbol renaming.
nmap <F2> <Plug>(coc-rename)

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

" 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

function HeaderPython()
    call setline(1, "#!/usr/bin/env python3")
    call append(1, "# -*- coding: utf-8 -*-")
    call append(2, "# Higgs @ " . strftime('%Y-%m-%d %T', localtime()))
    normal G
    normal o
    normal o
endf

function HeaderRuby()
    call setline(1, "#!/usr/bin/env ruby")
    call append(1, "# encoding: UTF-8")
    call append(2, "# Higgs @ " . strftime('%Y-%m-%d %T', localtime()))
    call setline(4, "")
    normal G
    normal o
endf


autocmd bufnewfile *.py call HeaderPython()
autocmd bufnewfile *.rb call HeaderRuby()
" Highlight the symbol and its references when holding the cursor.
"autocmd CursorHold * silent call CocActionAsync('highlight')


" Formatting selected code.
" Need install autopep8 first time running.
" Needless for me.
xmap <leader>f  <Plug>(coc-format-selected)
nmap <leader>f  <Plug>(coc-format-selected)




"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Vim Basic settings.
set smartindent

set tabstop=4

set clipboard+=unnamedplus
set shiftwidth=4
set expandtab
imap <C-l> <Right>
colorscheme gruvbox
set updatetime=300
set signcolumn=yes
set shell=/bin/bash
set nu
set relativenumber
set laststatus=2
set expandtab       " Always use spaces instead of tabs.
set tabstop=2       " Tab width after characters. 
set shiftwidth=4    " Tab stop before characters.
set encoding=UTF-8
filetype plugin on
" don't give |ins-completion-menu| messages.
set shortmess+=c
" always show signcolumns
set signcolumn=yes
set cinoptions +=g0