use antigen to install plugins in an env that has no internet

[xianggaolinkedin]

Description

Hi, I'm new to antigen and love it on my mac. But in my company testing environment, there is no internet to git, so when I ran antigen.zsh, it reports:

Cloning into '/export/home/eng/xiagao/.antigen/bundles/Vifon/deer'...
fatal: unable to access 'https://github.com/Vifon/deer.git/': Failed connect to github.com:443; Connection refused
Cloning into '/export/home/eng/xiagao/.antigen/bundles/zdharma/fast-syntax-highlighting'...
fatal: unable to access 'https://github.com/zdharma/fast-syntax-highlighting.git/': Failed connect to github.com:443; Connection refused
Cloning into '/export/home/eng/xiagao/.antigen/bundles/willghatch/zsh-cdr'...
fatal: unable to access 'https://github.com/willghatch/zsh-cdr.git/': Failed connect to github.com:443; Connection refused

I feel I shall copy some git repo into these hosts, but is there a tutorial to show how? I googled but found nothing. thanks! Hope to use it all day everywhere.

Software version

• antigen version. Antigen v2.2.2
• zsh --version zsh 5.0.2 (x86_64-redhat-linux-gnu)
• uname -a

Configuration

• gist of .antigenrc
• gist of .zshrc

More information

Screenshot or any other information you may find relevant to troubleshoot the issue.