[Yum-devel] Making yum quiet - yum.logginglevels.setDebugLevel(0) seemingly not working...

[MacCana, Mike (London)]

On Thu, 11 Jun 2009, MacCana, Mike \(London\) wrote:

> -----Original Message-----
> From: yum-devel-bounces at lists.baseurl.org 
> [mailto:yum-devel-bounces at lists.baseurl.org] On Behalf Of Seth Vidal
> Sent: 11 June 2009 16:19
> To: yum development
> Subject: Re: [Yum-devel] Making yum quiet - yum.logginglevels.setDebugLevel(0) seemingly not working...
>
> On Thu, 11 Jun 2009, MacCana, Mike \(London\) wrote:
>
>>>> Hi folks,
>>>>  
>>>> I'm installing a few packages using yum.YumBase.install in a 
>>>> postinstall. From the module docs, I gather setDebugLevel(0) should be the equivalent of a yum '--quiet', but alas, the following code...

>>> the debuglevel is for for yum cli output callbacks. You're not using
>>> those- so you're getting the default callbacks.

>> Thanks Seth. Is doLoggingSetup() also for the cli only (as I've tried it with the same results)?
>> How can I modify logging levels for API-level access?

> For API level access you really don't set it. You want to make your logging callback do whatever you want it to do.
> -sv

OK, I've had a crack at this borrowing the ProcessTransNoOutputCallback from a while back.

def install():
    class ProcessTransNoOutputCallback:
        def __init__(self):
            pass        
        def event(self,state,data=None):
            pass
    yb = yum.YumBase()
    yb.install(name='zlib-devel')
    yb.resolveDeps()
    yb.processTransaction(callback=ProcessTransNoOutputCallback())
    print('success\n')

install()

This works, but the output's still the same. If the callback handles the logging, and my callback does nothing, then how come this is still happening? I'm quite sure I'm doing something wrong here - the yum API is somewhat low level and is certainly testing my python skills. I could do what I want by using the easier yumbasecli module but I'd rather handle it in the same way other tools do.

Mike

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