CentOS安装YCM的方法

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1、安装vundle 

git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim

2、配置.vimrc

set nocompatible  
filetype off
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
Plugin 'VundleVim/Vundle.vim'
Plugin 'tpope/vim-fugitive'
call vundle#end()     
Bundle 'Valloric/YouCompleteMe'
filetype plugin indent on

3、打开vim运行

:BundleInstall

4、安装必要工具

1、yum install gcc gcc-c++ make automake python-devel
2、安装CMake

wget http://www.cmake.org/cmake/resources/software.html 
tar -zxv -f cmake-*.*.*.*.tar.gz 
cd cmake-*.*.*.*.tar.gz 
./bootstrap 
gmake 
gmake install

5、安装clang+llvm（这里用已经编译好的）

1、wget http://llvm.org/releases/3.5.1/clang+llvm-3.5.1-x86_64-fedora20.tar.xz
xz -d clang+llvm-3.5.1-x86_64-fedora20.tar.xz
tar xvf clang+llvm-3.5.1-x86_64-fedora20.tar
cd clang+llvm-3.5.1-x86_64-fedora20
注：也可用tar xvf clang+llvm-3.5.1-x86_64-fedora20.tar.xz解压

2、在/etc/profile这个档案最尾端添加以下两行代码：

PATH=/usr/local/cmake/bin:/usr/clang_3_3/binPATH
export PATH

3、执行更新变量：source /etc/profile

6、进入YCM目录，运行

./install.sh –clang-completer

7、对~/.vimrc做配置

let g:ycm_global_ycm_extra_conf = '~/.vim/bundle/YouCompleteMe/third_party/y   cmd/cpp/ycm/.ycm_extra_conf.py'
let g:ycm_confirm_extra_conf = 0

let g:ycm_semantic_triggers = {
  \   'c' : ['->', '    ', '.', ' ', '(', '[', '&'],
\     'cpp,objcpp' : ['->', '.', ' ', '(', '[', '&', '::'],
\     'perl' : ['->', '::', ' '],
\     'php' : ['->', '::', '.'],
\     'cs,java,javascript,d,vim,python,perl6,scala,vb,elixir,go' : ['.'],
\     'ruby' : ['.', '::'],
\     'lua' : ['.', ':']
\ }