vimrc-2

syntax on
filetype plugin indent on
set nocompatible

set tabstop=8
set expandtab
set softtabstop=8
set shiftwidth=8
set autoindent
set smartindent

set rnu

" if vim plug plugin manager doesn't exist, download it
let data_dir = has('nvim') ? stdpath('data') . '/site' : '~/.vim'
if empty(glob(data_dir . '/autoload/plug.vim'))
  silent execute '!curl -fLo '.data_dir.'/autoload/plug.vim --create-dirs  https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim'
  autocmd VimEnter * PlugInstall --sync | source $MYVIMRC
endif
" Run PlugInstall if there are missing plugins
autocmd VimEnter * if len(filter(values(g:plugs), '!isdirectory(v:val.dir)'))
  \| PlugInstall --sync | source $MYVIMRC
\| endif

call plug#begin()

" collection of language packs tool
Plug 'sheerun/vim-polyglot'

" typing suggestion tool
Plug 'neoclide/coc.nvim', {'branch': 'release'}

" Browser
Plug 'preservim/nerdtree'

" help with typing pairs ({}, [], etc)
Plug 'jiangmiao/auto-pairs'

" Custom bottom info bar
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'

" integrate cmake
Plug 'cdelledonne/vim-cmake'

" dark theme
Plug 'dracula/vim'

" tagbar
"Plug 'preservim/tagbar'
"Plug 'majutsushi/tagbar'

" taglist
Plug 'vim-scripts/taglist.vim'

" cscope
Plug 'vim-scripts/cscope.vim'

call plug#end()

" use tab to trigger completion and navigate to next complete item
function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1] =~ '\s'
endfunction
inoremap <silent><expr> <Tab>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<Tab>" :
      \ coc#refresh()

set termguicolors
colo dracula
let g:airline_theme='dracula'

nnoremap <leader>n :NERDTreeFocus<CR>
nnoremap <C-n> :NERDTreeToggle<CR>
" Start NERDTree and put the cursor back in the other window.
autocmd VimEnter * NERDTree
autocmd VimEnter * wincmd p
" Exit Vim if NERDTree is the only window remaining in the only tab.
autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 && exists('b:NERDTree') && b:NERDTree.isTabTree() | quit | endif
" Close the tab if NERDTree is the only window remaining in it.
autocmd BufEnter * if winnr('$') == 1 && exists('b:NERDTree') && b:NERDTree.isTabTree() | quit | endif

" !!!! INSTALL ccls vim with coc !!!
" Use F8 to open tagbar display
nmap <F8> :TagbarToggle<CR>

" Use F7 to open tagbar display
nmap <F7> :Tlist<CR>
"Show Taglist window on the right side
let Tlist_Use_Right_Window = 1
"Close folds for inactive files
let Tlist_File_Fold_Auto_Close=1
" point taglist to ctags
"let Tlist_Ctags_Cmd='/usr/bin/ctags'

" Use F9 to set build dir to ../build
nmap <F9> :set makeprg=make\ -C\ ../build<CR>

if has('cscope')
  set cscopetag cscopeverbose

  if has('quickfix')
    set cscopequickfix=s-,c-,d-,i-,t-,e-
  endif

"  cnoreabbrev csa cs add
"  cnoreabbrev csf cs find
"  cnoreabbrev csk cs kill
"  cnoreabbrev csr cs reset
"  cnoreabbrev css cs show
"  cnoreabbrev csh cs help
  cnoreabbrev <expr> csa  ((getcmdtype() == ':' && getcmdpos() <= 4)? 'cs add'  : 'csa')
  cnoreabbrev <expr> csf  ((getcmdtype() == ':' && getcmdpos() <= 4)? 'cs find' : 'csf')
  cnoreabbrev <expr> csk  ((getcmdtype() == ':' && getcmdpos() <= 4)? 'cs kill' : 'csk')
  cnoreabbrev <expr> csr  ((getcmdtype() == ':' && getcmdpos() <= 4)? 'cs reset' : 'csr')
  cnoreabbrev <expr> css  ((getcmdtype() == ':' && getcmdpos() <= 4)? 'cs show' : 'css')
  cnoreabbrev <expr> csh  ((getcmdtype() == ':' && getcmdpos() <= 4)? 'cs help' : 'csh')

  command -nargs=0 Cscope cs add $VIMSRC/src/cscope.out $VIMSRC/src
endif

"Remove all trailing whitespace by pressing F5
nnoremap <F5> :let _s=@/<Bar>:%s/\s\+$//e<Bar>:let @/=_s<Bar><CR>

cd /d/src