.vimrc

" first install vim-plug to ~/.vim/autoload/
call plug#begin('~/.vim/plugged')

	"Plug 'https://github.com/junegunn/vim-github-dashboard.git'
	"Plug 'SirVer/ultisnips'
	"Plug 'honza/vim-snippets'
	"Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeToggle' }
	"Plug 'tpope/vim-fireplace', { 'for': 'clojure' }
	"Plug 'rdnetto/YCM-Generator', { 'branch': 'stable' }


	""""""""""""""" IDE UI Configuration Plugins """"""""""""
	
	" directory move forth and back
	"Plug 'justinmk/vim-dirvish'
	" warning front/tail spaces
	Plug 'bronson/vim-trailing-whitespace'
	" git command line
	Plug 'tpope/vim-fugitive'
	" column alignment line
	Plug 'Yggdroot/indentLine'
	
	" the taskbar
	Plug 'itchyny/lightline.vim'
	
	" zoom in/out a window in a tab of vim editor
	Plug 'dhruvasagar/vim-zoom'
	
	""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
	
	Plug 'vivien/vim-linux-coding-style'

	
	"""""""""""""""""" Code Searching Plugins """"""""""""""""""""""
	
	" fuzzy search
	Plug 'Yggdroot/LeaderF', { 'do': './install.sh' }
	" automatically update ctags in the background
	Plug 'ludovicchabant/vim-gutentags'
	Plug 'skywind3000/gutentags_plus'
	" preview of the gtags-scope search ite
	" when the cursor is on an item in a list which is generated by
	" GscopeFind, we can use <C-p> to open that item in a preview window
	" and <C-P> to close the preview window
	Plug 'skywind3000/vim-preview'
	
	""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
	

	"""""""""""""""""" Code Format Configuration Plugins """""""""""
	
	" code fast alignment
	Plug 'junegunn/vim-easy-align'
	" Tab to Space automatically
	" [Hao] disable this since tab problem
"	Plug 'vim-scripts/Smart-Tabs'
	
	"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""


	"""""""""""""""""" Code Edit Configuration Plugins """"""""""""""
	
	" grammar check
	Plug 'w0rp/ale'

	" enhance specific language
	Plug 'vim-scripts/c.vim'
	Plug 'vim-scripts/a.vim'
	Plug 'octol/vim-cpp-enhanced-highlight'

	" automatically create non-existing directories for buff
	Plug 'pbrisbin/vim-mkdir'

	" auto compeletion
	Plug 'Valloric/YouCompleteMe', {'do':'./install.py --clang-completer --go-completer'}
	" function parameters hint
	Plug 'Shougo/echodoc.vim'

	""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

	""""""""""""""""""""" Code Color Configuration Plugins """""""""""""""
	
	"Plug 'altercation/vim-colors-solarized'
	"Plug 'crusoexia/vim-monokai'
	
call plug#end()

" general settings
	set nu
	set noshowmode

	set tabstop=8
	set backspace=2

	" set the fold mode
	set fdm=indent
	"set the color of folded code
	:hi Folded guibg=black guifg=grey40 ctermfg=LightGrey ctermbg=DarkGrey

	" wrap line when the commit message is too long
	set wrap

	" show a candidate list when press ctrl+]
	set cscopetag

	if &diff
		colorscheme github
	endif

	set colorcolumn=81
	:hi ColorColumn ctermbg=darkgrey guibg=darkgrey
" -----------------------------LeaderF settings--------------------------
	let g:Lf_WindowPosition = 'left'
	"let g:Lf_PreviewInPopup = 1
	"let g:Lf_ShortcutF = '<C-P>'
	"let g:Lf_ShortcutB = '<C-B>'
	noremap <leader>m :LeaderfFunction!<cr>
	" vim-linux-coding-style
	" options will be applied only if "/linux/" or "/kernel" is in buffer's path.
	let g:linuxsty_patterns = [ "/linux/", "/kernel/" ]

	" lightline settings
	set laststatus=2
	" remember to do: export TERM=xterm-256color in .zshrc 
	if !has('gui_running')
		set t_Co=256
	endif
	let g:lightline = {
		\ 'colorscheme': 'PaperColor_dark',
		\ }


" ----------gutentags.vim configuration-----------------------------------

"  gutentags will automatically generate/update tags asyncally in the background
"  gutentags can use ctags and/or gtags to generate tags
"  here I comment all ctags config since I just use gtags, gtags support c/c++
"  that's good enough for me
	"yum install -y global-ctags
	set tags=./.tags;,.tags
	" with pygments, gtags can use ctags as a front end to support more languages.
	"let $GTAGSLABEL = 'pygments'

	" this is not neccessary
	"let $GTAGSCONF = '/etc/gtags.conf'

	" this is to set the mark of a project, so that gutentags know this is
	" a project to generate tags
	let g:gutentags_project_root = ['.git','.root','.svn','.hg','.project']

	" the name of the tag file
	"let g:gutentags_ctags_tagfile = '.tags'
	" oepn the config to support ctags and gtags at the same time
	let g:gutentags_modules = []
		if executable('ctags')
				let g:gutentags_modules += ['ctags']
		endif
		if executable('gtags-cscope') && executable('gtags')
				let g:gutentags_modules += ['gtags_cscope']
		endif
	" store the ctags/gtags file in ~/workspace/.cache/tags directory to avoid
	" polluting the project directory
	let g:gutentags_cache_dir = expand('~/workspace/.cache/tags')
	" configure ctags
	"let g:gutentags_ctags_extra_args = []
	"let g:gutentags_ctags_extra_args = ['--fields=+niazS', '--extra=+q']
	"let g:gutentags_ctags_extra_args += ['--c++-kinds=+px']
	"let g:gutentags_ctags_extra_args += ['--c-kinds=+px']

	" add this line if using universal ctags
	"let g:gutentags_ctags_extra_args += ['--output-format=e-ctags']

	" forbidden gutentags to load gtags database automatically to avoid
	" multiple projects' databases mess up with each other.
	" the gtags database loading and switching will be done by
	" gutentags-plus automatically.
	let g:gutentags_auto_add_gtags_cscope = 0
	let g:gutentags_define_advanced_commands = 1

" ----------gutentags-plus configuration-----------------------------------
	" change focus to quickfix window after search (optional).
	let g:gutentags_plus_switch = 1

	"You can disable the default keymaps by:
	let g:gutentags_plus_nomap = 1

	"and define your new maps like:
	noremap <silent> <leader>gs :GscopeFind s <C-R><C-W><cr>
	noremap <silent> <leader>gg :GscopeFind g <C-R><C-W><cr>
	noremap <silent> <leader>gc :GscopeFind c <C-R><C-W><cr>
	noremap <silent> <leader>gt :GscopeFind t <C-R><C-W><cr>
	noremap <silent> <leader>ge :GscopeFind e <C-R><C-W><cr>
	noremap <silent> <leader>gf :GscopeFind f <C-R>=expand("<cfile>")<cr><cr>
	noremap <silent> <leader>gi :GscopeFind i <C-R>=expand("<cfile>")<cr><cr>
	noremap <silent> <leader>gd :GscopeFind d <C-R><C-W><cr>
	noremap <silent> <leader>ga :GscopeFind a <C-R><C-W><cr>
	noremap <silent> <leader>gz :GscopeFind z <C-R><C-W><cr>

"----------vim-preview configuration-----------------------------------------
	"P for preview, p for close
	autocmd FileType qf nnoremap <silent><buffer> p :PreviewQuickfix<cr>
	autocmd FileType qf nnoremap <silent><buffer> P :PreviewClose<cr>

"----------last cursor place configuration-----------------------------------
" Uncomment the following to have Vim jump to the last position when
" reopening a file
if has("autocmd")
  au BufReadPost * if line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g'\"" | endif
endif