the program needs a timeout parameter

[Rolf Leggewie]

auto-apt-proxy waits too long if there is no answer on the network.

My apt-cacher-ng is not on localhost, or the gateway but a separate machine on the LAN. Apparently, auto-apt-proxy cannot detect the cache in that case (whereas squid-deb-proxy-client can). This lead to "apt update" hanging for about 10 minutes each time. Please make sure to time out after no more than 2 seconds.

# apt update
[...]14 lines of output from repositories[...]
Reading package lists... Done
E: Sub-process ProxyAutoDetect returned an error code (1)
E: Sub-process ProxyAutoDetect returned an error code (1)
E: Sub-process ProxyAutoDetect returned an error code (1)
E: Sub-process ProxyAutoDetect returned an error code (1)
E: Sub-process ProxyAutoDetect returned an error code (1)
E: Sub-process ProxyAutoDetect returned an error code (1)
E: Sub-process ProxyAutoDetect returned an error code (1)
E: Sub-process ProxyAutoDetect returned an error code (1)
E: Sub-process ProxyAutoDetect returned an error code (1)
E: Sub-process ProxyAutoDetect returned an error code (1)
E: Sub-process ProxyAutoDetect returned an error code (1)
E: Sub-process ProxyAutoDetect returned an error code (1)

[Logan Rosen (logan)]

This bug was fixed in the package auto-apt-proxy - 13.4

---------------
auto-apt-proxy (13.4) unstable; urgency=medium

  [ Julian Andres Klode ]
  * Avoid retries when proving for proxies.
    Pass -o Acquire::Retries=0 to apt-helper, such that apt doesn't retry
    the proxy probing, which now has exponential backoff in 2.3.7
    (Closes: #992147)

  [ Antonio Terceiro ]
  * timeout after 5s when looking `auto-apt-proxy` up.
    If a DNS lookup for the proxy takes too long, we don't to want to use it
    anyway. (Closes: #979132)

 -- Antonio Terceiro <email address hidden> Sun, 22 Aug 2021 20:58:06 -0300