Mailinglist Archive: opensuse-factory (341 mails)

["Duncan Mac-Vicar P." <dmacvicar@xxxxxxx>]

Dave Plater wrote:
> This doesn't answer your question but aria2c, from what I have observed,
> does a very good job of checking file existence on mirrors by itself.
> That is as long a http://download.opensuse.org is used and maybe the
> easier approach is to rely more on aria2c's reporting. Don't quite know
> how the refresh process works though but this is so as far as package
> download is concerned.
>   
No, the usecase is different. Sometimes libzypp wants to know if the
file is there, but if it is, not to download it. curl can do a head
request only. This is use for repository probing for example.
> To shed a bit of light according to
> https://bugzilla.novell.com/show_bug.cgi?id=458708#c7 /root/.curlrc
> overrides the environment variable and various program options I have
> seen override option files and environment variables. i.e. if libzypp
> passes an option from its config file it will override all others. Sorry
> I can't think of a zypp.conf option to actually test this with.
> Regards
> Dave P
>   
I found my answer:

libcurl respects the environment variables http_proxy, ftp_proxy,
all_proxy etc, if any of those are set. The CURLOPT_PROXY
<http://curl.haxx.se/libcurl/c/curl_easy_setopt.html#CURLOPTPROXY>
option does however override any possibly set environment variables.

Setting the proxy string to "" (an empty string) will explicitly disable
the use of a proxy, even if there is an environment variable set for it.

I need to make sure we set the option to "" if the proxy was disabled on
sysconfig, I guess.

Duncan

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