从github下载tarball而不卷曲

I have an embedded system where I cannot install anything and the only tool I could potentially use to fetch something is wget. It turns out you cannot do the same things with wget that you can with curl. I cannot cross-compile for this system either, so I need to resort to Python or shell scripts. There pure-Python implementation of git called Dulwich actually has some C code that I'd need to cross-compile... So I even resorted looking into that, FYI.I have an embedded system where I cannot instal