参考文档: 搭建OpenGrok https://zhuanlan.zhihu.com/p/164794121
安装和配置Tomcat https://blog.youkuaiyun.com/qq_38685754/article/details/93303734
安装Universal ctags https://blog.youkuaiyun.com/ISs_Cream/article/details/115282547
1、安装jdk
sudo apt-get install openjdk-8-jdk
2、安装ctags
不能用exuberant-ctags,应该安装Universal ctags
第一步:下载安装Universal ctags的一些前置软件
sudo apt install \
gcc make \
pkg-config autoconf automake \
python3-docutils \
libseccomp-dev \
libjansson-dev \
libyaml-dev \
libxml2-dev
第二步:从github上下载Universal ctags
cd /usr/local/share
sudo git clone https://github.com/universal-ctags/ctags.git
cd ctags
sudo ./autogen.sh
sudo ./configure --prefix=/usr/local(安装路径,自定义)