ubuntu14.04.2安装 YouCompleteme

1 安装git ，按照这篇文章安装

http://www.cnblogs.com/or2-/p/4350252.html

2 安装编译需要的各种包

sudo apt-get install build-essential cmake
sudo apt-get install clang
sudo apt-get install python-dev

3 安装vim ，使用国内阿狸云仓库的vim就可以

sudo apt-get install vim
也可以安装上vim-gnome
sudo apt-get install vim-gnome

4 在你的用户家目录里新建 .vimrc文件
例如

~  ls .vimrc
.vimrc

5 在.vimrc文件中加入vundle组件管理插件，

set nocompatible              " be iMproved, required
filetype off                  " required

set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()

Plugin 'gmarik/Vundle.vim'

Plugin 'tpope/vim-fugitive'
Plugin 'L9'
Plugin 'git://git.wincent.com/command-t.git'
Plugin 'Valloric/YouCompleteMe'
Plugin 'rstacruz/sparkup', {'rtp': 'vim/'}
Plugin 'user/L9', {'name': 'newL9'}

call vundle#end()            " required
filetype plugin indent on    " required

6 保存退出

7 打开gvim 或者vim 试图模式执行PluginInstall,等待下载好YouCompleteMe

8 去下载目录

cd ~/.vim/bundle/YouCompleteMe
./install.sh --clang-completer  //只是编译安装支持c/c++语法补全

9编译安装后，需要在.vimrc中添加配置，.ycm_extra_conf.py是一个隐藏文件

let g:ycm_global_ycm_extra_conf='~/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp/ycm/.ycm_extra_conf.py'
set completeopt=longest,menu
autocmd InsertLeave * if pumvisible() == |pclose|endif

let g:ycm_collect_identifiers_from_tags_files=
let g:ycm_min_num_of_chars_for_completion=
"禁止缓存匹配项,每次都重新生成匹配项
let g:ycm_cache_omnifunc=
let g:ycm_seed_identifiers_with_syntax=
let g:ycm_confirm_extra_conf =
"允许在字符串里补全（双引号）
let g:ycm_complete_in_strings =
" 在注释输入中也能补全
let g:ycm_complete_in_comments =
"自动补全快捷键
let g:ycm_key_invoke_completion = '<S-Space>'
"补全之后自动关闭preview
let g:ycm_autoclose_preview_window_after_completion =
let g:ycm_key_list_select_completion = ['<Down>']
inoremap <expr> <CR>       pumvisible() ? "\<C-y>" : "\<CR>"
" YCM 补全菜单配色
highlight Pmenu ctermfg= ctermbg= guifg=SeaGreen guibg=blue
highlight PmenuSel ctermfg= ctermbg= guifg=SeaGreen guibg=yellow