Re: PATCH: Make nnrss fail gracefully when it can't fetch a feed

[Mark Plaksin <happy@usg.edu>]

Katsumi Yamaoka <yamaoka@jpl.org> writes:

>> -	  (mm-url-insert url)))
>> +          (condition-case nil
>> +              (mm-url-insert url)
>> +            (error (nnheader-message 3 "nnrss: Failed to fetch %s" url)))))
>
> Isn't it better to use just `message' since it is obviously an
> error?  And also (sit-for N) might be required.

Hmm, maybe everybody isn't like me and there should be an option for error
handling :)  I want a warning instead of an error because various feeds are
often inaccessible for some reasons beyond my control.  As-is, Gnus stops
checking groups as soon as nnrss has an error and I don't know an easy way
to say "don't check group X this time around but check all the rest".

Some folks might want an error so that they it's obvious they are missing a
feed.  I'll notice if I haven't read a feed for a long time so a warning
with no delay is best for me.

A warning is also be better than an error (for me) if fetching feeds via
a gnus-demon.

I won't have time to work on this for a week or so.

>> I don't know whether I used the right -message function.  What's the
>> difference between nnheader-message and gnus-message?
>
> AFAIK, gnus- modules, mm- modules, nn- modules, and others are
> mutually independent.  For example, there might be people who
> use nn- modules for the application other than Gnus. (They
> depend each other in practice, though.)

So nnheader-message is a general message function for all backends?

> BTW, you'd better do the paper work for the copyright assignment
> on Emacs (or Gnus) because the remainder of your `tiny change'
> quota will be used up sooner or later. ;-)

Ha!  Are there really separate papers for Gnus and Emacs?  Where does one
find the magical papers?  They are mentioned but not present here:
http://www.gnu.org/prep/maintain/html_node/Copyright-Papers.html#Copyright-Papers

If it's all the same to the FSF, I'd just as soon do the one that includes
future changes.