apt.conf evaluation order

[Ian Coetzee]

On 2010/02/27 12:05 PM, Josef Wolf wrote:
> Hello,
>
> Can anybody point me to information about evaluation order of the apt.conf
> files? The apt.conf manpage does not specify whether /etc/apt/apt.conf is
> read before or after /etc/apt/apt.conf.d/* and in which order the files
> in apt.conf.d are processed. Are they processed via run-parts? How should
> backup files be named to be ignored?. Do late settings override previous
> settings or is a setting immutable if it is once set?
>    
Hi Josef, I like you can only guess (by looking at the files).

My guess is that "/etc/apt/apt.conf" is run first, as my proxy settings 
is set there.

In the directory "/etc/apt/apt/conf.d/" the files is numbered (00..99) 
which tells me that they are parses in order of appearance.

Like I said, this is only a guess, maybe some other apt boffin out there 
can give us a better idea

Regards
Ian
> For example, /etc/cron.daily/apt states that the admin should set his
> preferences in /etc/apt/apt.conf.d/02periodic to override the defaults.
> But how can this work if /etc/apt/apt.conf.d/10periodic (contained in
> update-notifier-common) sets its own values? From that I'd assume settings
> are immutable?
>
> Can anybody help to clarify?
>
>