iankelling.org Git - distro-setup/blob - filesystem/etc/apt/detect-http-proxy

   1 #!/bin/bash
   2 # based on
   3 # http://askubuntu.com/questions/53443/how-do-i-ignore-a-proxy-if-not-available
   4 # altered because testing a down proxy takes like 2 seconds,
   5 # and we would do it like 100 times in a row. so cache a failed result
   6 # locally for 1 hour. Also, using newer option based on man apt.conf.
   7 proxy_host=faiserver
   8 proxy_port=3142
   9 proxy_url=http://$proxy_host:$proxy_port
  10 f=/tmp/apt_proxy_fail
  11 if [[ ! -r $f ]] \
  12        || (( $(( $(date +%s) - $(stat -c %Y $f ) )) > 60*60 )); then
  13     if host $proxy_host && nc -z $proxy_host $proxy_port; then
  14         echo $proxy_url
  15     else
  16         touch $f
  17     fi
  18 fi
  19 echo DIRECT