youcompleteme　install and configure

三四年前我配置vim插件的时候还都是手动配置,还没有听说vundle这个vim插件管理工具，现在配置vim插件的时候基本上都用vundle，这个插件也确实是方便快捷，只不过这东西时能话了就不清楚里面的一些基本原理了，就好像学c语言要学会用命令行一样，用IDE的话会理解不深刻1.需要需要确认vim支持python2.sudo dnf install vim git python python-devel gcc gcc-c++ cmake clang3.git clone https://github.com/gmarik/Vundle.vim.git ~/.vim/bundle/Vundle.vim4.在vim的配置文件vimrc里面添加如下内容（vimrc文件位置，命令模式下:echo $VIM）

在vim的配置文件vimrc里面添加如下内容（vimrc文件位置，命令模式下:echo $VIM）

set nocompatible              " be iMproved, required

filetype off                  " required

" set the runtime path to include Vundle and initialize

set rtp+=~/.vim/bundle/Vundle.vim

call vundle#begin()

" alternatively, pass a path where Vundle should install plugins

"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required

Plugin 'gmarik/Vundle.vim'

Plugin 'Valloric/YouCompleteMe'

" All of your Plugins must be added before the following line

call vundle#end()            " required

filetype plugin indent on    " required

" To ignore plugin indent changes, instead use:

"filetype plugin on

"

" Brief help

" :PluginList       - lists configured plugins

" :PluginInstall    - installs plugins; append `!` to update or just :PluginUpdate

" :PluginSearch foo - searches for foo; append `!` to refresh local cache

" :PluginClean      - confirms removal of unused plugins; append `!` to auto-approve removal

"

" see :h vundle for more details or wiki for FAQ

" Put your non-Plugin stuff after this line

5.打开vim，命令行模式下输入 :PluginInstall6.

进入YoucompleteMe目录，

#cd ~/.vim/bundle/YoucompleteMe

#./install --clang-completer   //PS这里可以使用install --help查看支持哪些补全

7.在.vimrc中添加

let g:ycm_global_ycm_extra_conf = '~/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp/ycm/.ycm_extra_conf.py'

ok能用了如果想对ycm进行一些配置的话可以看官方文档https://github.com/Valloric/YouCompleteMe 的option一节