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Date: Sun, 26 Jun 2011 20:52:09 -0600 (MDT)
From: Dennis Glatting <freebsd@penx.com>
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Subject: Using a "special" proxy for ports
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I have a requirement where I need to archive ports used across twenty 
hosts for a year or more. I've decided to do this using Squid and to take 
advantage of Squid's cache when updating common ports across those hosts.

(BTW, at another site I used rsync to sync /usr/ports/distfiles across the 
hosts to a local master site then specified _MASTER_SITES_DEFAULT in 
make.conf to a FTP server on the local site. That method works when the 
port is previously cached however if the file isn't in the cache and I 
simultaneously install the port across ten hosts, the port is fetched ten 
times. Sigh.)

I have a Squid proxy installed that isn't meant for every-day/every-user 
use and requires authentication. (Users either go through another Squid 
proxy or direct.) The special Squid proxy works. No surprise there. 
Authentication works. No surprise there.

What I need is a method to embed into make.conf a proxy specification for 
fetch. Setting the environment variable HTTP_PROXY from the login shell 
/is not/ preferred because the account is used by different 
administrators, I don't what the special proxy accidentally polluted with 
non-port stuff, and it would only create confusion.

Setting http_proxy in make.conf does not work. .netrc doesn't appear to be 
a viable method (if it did, I could specify FETCH_ARGS in make.conf).