Re: [nant-dev] writing the NAnt output to a log file ??

[Gary F. <ga...@me...>]

Martin Aliger wrote:

>Ah, you want to suppress standard logging too... Hmm - there is not an
>attribute to do that. <exec> task always log all standard output as Info
>level messages, and standard error as Warning level messages.
> 
>NAnt always write all messages up to level Info when run normally, up to
>level Verbose when with -v switch or just to Warning level when in quiet
>mode. AFAIK there is no other mean of control over this in standard
>distribution (I propose some patches to this, but they wasn't accepted yet).
>
> 
>Gert, Ian, others - what you think about more control over verbosity? It'd
>be nice sometimes. Even that I do not have problem with it any longer (since
>I switch to xmllogger+xslt templates), Pradeep and propably others would
>welcome it. Maybe publishing Threshold Task property could be enough, enable
>lowering threshold for specific tasks.
> 
><exec program="nant.exe" commandline="..." output="log.txt"
>threshold="Error"/>
> 
>  
>
Why make this so complicated?  If the user specified output= to the 
<exec> task, then the output goes there and nowhere else, period.  If 
the user wants that in the log as well, then they can still do that 
using <loadfile> and <echo> (though enhancing <echo> to take the message 
from a file isn't a bad idea). 

But if the user has made the decision to direct the output somewhere 
else, there must be a reason, most often because it's either irrelevant 
to the build process or too verbose.  In the first case, it should be 
totally suppressed from the NAnt log, and in the second case, it's far 
more likely the user will want a filter on it.   In that case, the 
loadfile/echo, along with a new grep filter, solve the problem with much 
more flexibility, and without hobbling the most common usage scenario 
for the output attribute.

Are there any common usage scenarios for needing the entire output in 
both places?  I can't think of any.

Gary

>Martin
>
>
>  _____  
>
>From: chellu pradeep [mailto:ch...@ya...] 
>Sent: Sunday, December 11, 2005 4:26 PM
>To: Martin Aliger
>Subject: RE: [nant-dev] writing the NAnt output to a log file ??
>
>
>even after i use <exec> task's output attribute i can see the result on the
>command prompt screen as well as the output gets logged onto a log file. Am
>i missing something here?
>
>NOTE: I am using NAnt 0.85 rc3 and NantContrib 0.85 rc3
>
>--Pradeep
>
>Martin Aliger <mar...@go...> wrote: 
>
>           <exec program="..\nant\bin\nant.exe"
>commandline="-buildfile:MiddleTier\MTM.MiddleTier.build build >
>..\..\..\Log\MTM.MiddleTier.build.log" />
> 
>This will never work. ">" sign is shell (cmd.exe) special handling, its not
>common to process running. NAnt's <exec> task have special attribute for
>file-redirection. See
>http://nant.sourceforge.net/nightly/latest/help/tasks/exec.html expecially
>output and append attributes.
> 
>Martin
>
>
>
>
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