[Scons-users] Technical question abouir --debug=explain

Wed Dec 20 12:09:57 EST 2017

Here's the wiki page: https://github.com/SCons/scons/wiki/TestingMethodology

It would be useful to figure out why it's yielding the odd messaging.

On Wed, Dec 20, 2017 at 11:42 AM, Pierre-Luc Boily <
pierreluc.boily at gmail.com> wrote:

> It might be only a problem with debug messaging knowing that :
> 1 - All my executable runs fine
> 2 - SCons not rebuilding anything if I have no file changes (as expected)
> 3 - SCons is rebuilding only what is necessary when I change one file (as
> expected)
>
> I created this post because the message printed was worrying me, I thought
> that it might be related with bad implementation on my end.  Also, I am
> still wondering why debug message is fine on windows but not on centos
> 6.7.  Is it still relevant to dig in __init__.py as you point me out in
> previous post?  Also, could you point me out some test exemple for the test
> suite?
>
> thx
>
> On Wed, Dec 20, 2017 at 11:22 AM, Bill Deegan <bill at baddogconsulting.com>
> wrote:
>
>> So it's just a problem with debug messaging when duplicate=0?
>>
>> If you can create a minimum test we can add to our test suite and fix..
>>
>> On Wed, Dec 20, 2017 at 11:11 AM, Pierre-Luc Boily <
>> pierreluc.boily at gmail.com> wrote:
>>
>>> Hello,
>>>
>>> Not yet looked into __init__.py,, but I found that if I duplicate src
>>> files into variant dir, message print by "--debug=explain" now make sense.
>>> scons: rebuilding `build/debug/gui/aiui_lib/lib/
>>> i86-pc-linux-gnu/aiui_controller.o' because
>>> `build/debug/gui/aiui_lib/lib/aiui_controller.cpp' changed
>>>
>>>
>>> In SConsctruct :
>>> Changed this
>>> SConscript("gui/aiui_lib/lib/aiui_lib.sc", exports='envService
>>> vcxprojList', variant_dir="build/debug/gui/aiui_lib/lib", duplicate=0)
>>>
>>> by this :
>>> SConscript("gui/aiui_lib/lib/aiui_lib.sc", exports='envService
>>> vcxprojList', variant_dir="build/debug/gui/aiui_lib/lib")
>>>
>>> To answer you previous question, it is not building if I do not change
>>> the file (as expected)
>>>
>>>
>>> On Tue, Dec 19, 2017 at 5:22 PM, Bill Deegan <bill at baddogconsulting.com>
>>> wrote:
>>>
>>>> Here's the logic in question:
>>>>         removed = [x for x in old_bkids if not x in new_bkids]
>>>> in SCons/Node/__init__.py
>>>>
>>>> old_bkids and new_bkids are BuildInfo objects.
>>>>
>>>> You could add some logic there to print the details of each element in
>>>> old_bkids and new_bkids and see why it's not seeing that file in new_bkids.?
>>>>
>>>> On Tue, Dec 19, 2017 at 4:54 PM, Bill Deegan <bill at baddogconsulting.com
>>>> > wrote:
>>>>
>>>>> Is the file itself changing between builds in this case?
>>>>> Or is it building when it's not changing?
>>>>>
>>>>> On Tue, Dec 19, 2017 at 4:01 PM, Pierre-Luc Boily <
>>>>> pierreluc.boily at gmail.com> wrote:
>>>>>
>>>>>> I tried same test on a smaller part of the code to get smaller
>>>>>> tree/traces.  I also rework the SConscript to make it simpler, and I don't
>>>>>> see anything shocking.
>>>>>> Tree : https://pastebin.com/iuwKekwD
>>>>>> Trace: https://pastebin.com/KwAieVGE
>>>>>>
>>>>>> SConscript :
>>>>>> Import('envService')
>>>>>> envService.validate_supported_platform('posix')
>>>>>> env = envService.get_env32()
>>>>>> env.USE_QT()
>>>>>> env.Library(target = env.libName(),source = ["aiui_controller.cpp",
>>>>>> "aiui_widget_impl.cpp", "aiui_widget.cpp"])
>>>>>>
>>>>>> Do you see something unusual?
>>>>>>
>>>>>> thx
>>>>>>
>>>>>> On Tue, Dec 19, 2017 at 12:07 PM, Bill Deegan <
>>>>>> bill at baddogconsulting.com> wrote:
>>>>>>
>>>>>>> You might also run with
>>>>>>>
>>>>>>> --taskmastertrace=FILE
>>>>>>>
>>>>>>> And look at the generated file with respect to the source and target(s) involved.
>>>>>>>
>>>>>>>
>>>>>>> On Tue, Dec 19, 2017 at 10:31 AM, Pierre-Luc Boily <
>>>>>>> pierreluc.boily at gmail.com> wrote:
>>>>>>>
>>>>>>>> Yes it is.  It must be something with my implementation for sure.,
>>>>>>>> I'll dig more on my scons implementation...  It might be related with my
>>>>>>>> pseudo-builders.  I have an implementation on top of Library, SharedLibrary
>>>>>>>> and Program calls, in order to be able to generated artifacts in the
>>>>>>>> correct variant dir. The Variant dir given to SConscript looks like
>>>>>>>> "/svn/products/build/debug/src".  Then, my pseudo-builder receives
>>>>>>>> the variant dir and add a subfolder like that "/svn/products/build/debug/src/i86-pc-linux-gnu".
>>>>>>>> See https://pastebin.com/6fTVDnMa.   Code executed from
>>>>>>>> pseudo-builders is the same from windows and centos.  So, it might be
>>>>>>>> something elsewhere as well....
>>>>>>>>
>>>>>>>> On Tue, Dec 19, 2017 at 9:59 AM, Bill Deegan <
>>>>>>>> bill at baddogconsulting.com> wrote:
>>>>>>>>
>>>>>>>>> That is unexpected.
>>>>>>>>> Is it repeatable?
>>>>>>>>>
>>>>>>>>> On Tue, Dec 19, 2017 at 9:17 AM, Pierre-Luc Boily <
>>>>>>>>> pierreluc.boily at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> Hello!
>>>>>>>>>>
>>>>>>>>>> Was doing small test yesterday by changing a cpp file and
>>>>>>>>>> compiling with
>>>>>>>>>> --debug=explain.  I realized that the explain argument did not
>>>>>>>>>> print the
>>>>>>>>>> message I was expected on my centos build :
>>>>>>>>>>
>>>>>>>>>> scons: rebuilding
>>>>>>>>>> `build/debug/sim/simulator/vr/pbs/fpsm/i86-pc-linux-gnu/pbsf
>>>>>>>>>> psm_acreport.o'
>>>>>>>>>> because:
>>>>>>>>>>            `sim/simulator/vr/pbs/fpsm/pbsfpsm_acreport.cpp' is
>>>>>>>>>> no longer a
>>>>>>>>>> dependency
>>>>>>>>>>            `sim/simulator/vr/pbs/fpsm/pbsfpsm_acreport.cpp' is a
>>>>>>>>>> new
>>>>>>>>>> dependency
>>>>>>>>>>
>>>>>>>>>> I did some test on windows as well, by changing a cpp file too,
>>>>>>>>>> and I got
>>>>>>>>>> this :
>>>>>>>>>>
>>>>>>>>>> scons: rebuilding
>>>>>>>>>> `build\debug\sr\sra\src\flatGui\win32\ASRResultObserverUI.obj'
>>>>>>>>>> because
>>>>>>>>>> `sr\sra\src\flatGui\ASRResultObserverUI.cpp' changed
>>>>>>>>>>
>>>>>>>>>> which is the message that I do expect.  So, I am wondering if it
>>>>>>>>>> is the
>>>>>>>>>> message on centos makes sense. This message sounds like that the
>>>>>>>>>> cpp is
>>>>>>>>>> being removed.  I double-check my pseudo-builder that creates
>>>>>>>>>> Library and
>>>>>>>>>> Program, and the code executed is the same for both centos and
>>>>>>>>>> windows.
>>>>>>>>>>
>>>>>>>>>> I am using scons 2.5.1 with python 2.7.13
>>>>>>>>>>
>>>>>>>>>> Thx
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> Sent from: http://scons.1086193.n5.nabble.com/Users-f16930.html
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