Centos 7 YCM从头开始安装记录

####Vundle安装

1. 下载Vundle git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim
2. 这里先用Vundle提供的配置直接替换自己的.vimrc。（可以直接从Vundle页面复制）

   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 'VundleVim/Vundle.vim'
   
   " The following are examples of different formats supported.
   " Keep Plugin commands between vundle#begin/end.
   " plugin on GitHub repo
   Plugin 'tpope/vim-fugitive'
   " plugin from http://vim-scripts.org/vim/scripts.html
   " Plugin 'L9'
   " Git plugin not hosted on GitHub
   Plugin 'git://git.wincent.com/command-t.git'
   " git repos on your local machine (i.e. when working on your own plugin)
   Plugin 'file:///home/gmarik/path/to/plugin'
   " The sparkup vim script is in a subdirectory of this repo called vim.
   " Pass the path to set the runtimepath properly.
   Plugin 'rstacruz/sparkup', {'rtp': 'vim/'}
   " Install L9 and avoid a Naming conflict if you've already installed a
   " different version somewhere else.
   " Plugin 'ascenator/L9', {'name': 'newL9'}
   
   " 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

安装YCM

1. 然后在call vundle#begin()和call vundle#end()之间加上Plugin 'Valloric/YouCompleteMe'。
2. vim中运行:PluginInstall安装插件。

此时可以看到有个需要vim版本7.4.158+的提示，所以安装最新的vim

3. 下载libclang,因为我需要c-family的支持，所以下载libclang，作者建议使用官网编译好的二进制包。

   • 安装cmake:yum install cmake
   • 安装python-devel:yum install python-devel
   • 从官网下载LLVM-Clang二进制包，版本要求3.9以上.LLVM官网
     我的系统是Centos.
     wget http://releases.llvm.org/5.0.1/clang+llvm-5.0.1-x86_64-linux-gnu-Fedora27.tar.xz

4. 根目录下建立build目录和temp目录。

cd ~
mkdir ycm_build
mkdir ycm_temp

5. 将下载的clang+llvm压缩包解压到~/ycm_temp/llvm_root_dir(目录中包含 bin lib include等文件)
6. 进入ycm_build目录cd ~/ycm_build，生成配置文件，执行

cmake -G "Unix Makefiles" -DPATH_TO_LLVM_ROOT=~/ycm_temp/llvm_root_dir . ~/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp

7. 构建ycm_core

   cmake --build . --target ycm_core --config Release

此时运行vim仍然会提示

The ycmd server SHUT DOWN (restart with ‘:YcmRestartServer’). Unexpected exit code 1.

8. 重新编译YCM

进入到Youcomplete目录之后执行./install.py --clang-completer 然后在进就提示

NoExtraConfDetected: No .ycm_extra_conf.py file detected, so no compile flags are available. Thus no semantic suppo…

到这里就很清楚了，在.vimrc 中添加
let g:ycm_global_ycm_extra_conf='~/.vim/.ycm_extra_conf.py'

~/.vim/.yvm_extra_conf.py是我的路径，这里需要填自己的文件所在路径

安装最新版Vim

1. 下载源码文件git clone https://github.com/vim/vim.git
2. 进入到src目录，然后执行./configure --with-features=huge --enable-multibyte --enable-pythoninterp=yes --with-python-config-dir=/usr/lib64/python2.7/config --enable-cscope --prefix=/usr/local/vim8,

其中with-python-config-dir为Python的配置文件路径，如果通过默认安装的一般在/usr/lib64/pythonX/bin X为版本号。 如果是自己安装在了其他路径也可以通过，rpm -ql python | grep config查找。

如果是python3 则将pythoninterp改为python3interp,with-python-config-dir改为with-python3-config-dir

3. 执行make
4. 执行make install

赏

谢谢你请我吃糖果

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