RFR: 8015068 : (m) Use jtreg -exclude for problemlist.txt processing

[Jonathan Gibbons]

On 08/07/2013 07:33 PM, Stuart Marks wrote:
> On 8/7/13 6:44 PM, Jonathan Gibbons wrote:
>> On 08/07/2013 06:22 PM, Alan Bateman wrote:
>>> It's good to see this logic going away. Also defaulting the output 
>>> directory
>>> to TEST_ROOT (= pwd) is an improvement.
>>
>> Aaargh.  If I read those words correctly, it's a horrible idea to set 
>> the
>> output dir to TEST_ROOT -- because on reruns jtreg will have to scan 
>> the output
>> files looking for new tests!
>
> I liked the old behavior of the output dir being over in the build 
> area. Not only does it avoid the problem that Jon mentions, but also, 
> the build area is in the repo's .hgignore file. Thus all the generated 
> files will be ignored by hg. If the generated files were to go under 
> TEST_ROOT, it will cause "hg status" to run slowly and to produce 
> voluminous output.
>
> s'marks

^^ What he said.   And the paranoid man's "make clean" of "rm -rf build" 
works really well. :-)

Writing any files into a SCM-controlled directory is a bad idea.

-- Jon