由于某些离谱的原因，clone github上面的项目时速度往往不到100k/s

所以，需要用点奇奇怪怪的东西,比如利用NGINX反向代理一下GitHub

server
{
    listen 80;
    listen [::]:80;
    server_name example.com example.example.com ;
   
        if ($http_user_agent ~* "qihoobot|Baiduspider|Googlebot|Googlebot-Mobile|Googlebot-Image|Mediapartners-Google|Adsbot-Google|Feedfetcher-Google|Yahoo! Slurp|Yahoo! Slurp China|YoudaoBot|Sosospider|Sogou spider|Sogou web spider|MSNBot|ia_archiver|Tomato Bot") #防止搜索引擎收录
    {
        return 403;
    }
    
location /git {
        #这里设置github地址
        proxy_pass https://github.com/;
        proxy_buffering off;
        #proxy_buffer_size 4k;

        proxy_connect_timeout 300s;
        proxy_read_timeout 300s;
        proxy_send_timeout 300s;
        send_timeout 300s;
        #开启websocket 
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host github.com;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Host $server_name;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Ssl on;
    }
        location ~ \.well-known{
        allow all;
        }
}