Issues with yum

[John Reiser]

On 02/27/2012 07:29 AM, Bruno Wolff III wrote:
> On Mon, Feb 27, 2012 at 14:00:51 +0000,
>   Frank Murphy <frankly3d at gmail.com> wrote:
>> On 27/02/12 13:52, elison.niven at gmail.com wrote:
>>>
>>> 4) Quit on single CTRL-C. Users expect an application to quit on
>>> pressing CTRL-C.
>>> Reason to have this feature : Better user experience
>>
>> never used ctrl-c, normally use "killall yum"
>> if required.
> 
> Control C works, but it needs to reach a break point. And once you start
> actually doing a transaction you don't normally want control C to work
> since it will leave your system in a state where manual cleanup is likely
> required.

That behavior (no response to ^C [SIGINT] within 5 seconds) is a bug.
It's a _transaction_, right?  So either it completes successfully,
or fails with no apparent lasting effects (except log files, delay, etc.)
So yum should: respond immediately on stderr, abort the transaction
(roll back everything to the state before the transaction began),
and terminate with failure status.  Because the original request
is for a transaction, then yum *must* be able to abort and rollback
anyway, to recover from I/O errors [and such errors _do_ happen.]
So, act as if ^C [SIGINT] is an I/O error.

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