[Scons-users] Scanner / Builder Race Condition?

Brian Cody brian.j.cody at gmail.com
Tue Feb 23 07:59:06 EST 2016


I've entered http://scons.tigris.org/issues/show_bug.cgi?id=3022

If there's anything else I ought to add, let me know.

On Mon, Feb 22, 2016 at 6:31 PM, William Blevins <wblevins001 at gmail.com>
wrote:

> It seems that action that act on a source should not be allowed until that
> source is up-to-date...
>
> On Mon, Feb 22, 2016 at 11:25 PM, William Blevins <wblevins001 at gmail.com>
> wrote:
>
>> Brian,
>>
>> The Dir as a File is sort of already documented:
>> http://scons.tigris.org/issues/show_bug.cgi?id=2648
>> That seems to be related to lazy Node.FS creation and guessing the type
>> or making the type FS.Entry.
>>
>> I am seeing the error you are describing, but I don't know how to quickly
>> fix it. On skimming the tigris issues, I did not see this listed. Would you
>> make a new issue with the SConstruct you attached and your other output?
>>
>> V/R,
>> William
>>
>> On Mon, Feb 22, 2016 at 11:07 PM, Brian Cody <brian.j.cody at gmail.com>
>> wrote:
>>
>>> We should be on 2.4.1.  I’ll update if that’s inaccurate.
>>>
>>> The error that you gave, tried to look up Dir as a file, is another one
>>> of the error conditions that we see in our real build, actually! It’s the
>>> path to the project file from the SConstruct.
>>>
>>>
>>> On 2016 Feb22, at 18:03, William Blevins <wblevins001 at gmail.com> wrote:
>>>
>>> What version of SCons are you using?
>>>
>>> On Mon, Feb 22, 2016 at 11:00 PM, William Blevins <wblevins001 at gmail.com
>>> > wrote:
>>>
>>>> I do see what you are saying though...
>>>>
>>>> On Mon, Feb 22, 2016 at 10:43 PM, William Blevins <
>>>> wblevins001 at gmail.com> wrote:
>>>>
>>>>> I get this error after I created 2 *.dat file(s) with junk data:
>>>>> "TypeError: Tried to lookup Dir '.' as a File."
>>>>>
>>>>> On Mon, Feb 22, 2016 at 10:35 PM, William Blevins <
>>>>> wblevins001 at gmail.com> wrote:
>>>>>
>>>>>> I am missing the source files to trace the program, but it's a more
>>>>>> concrete example :)
>>>>>>
>>>>>> On Mon, Feb 22, 2016 at 9:53 PM, Brian Cody <brian.j.cody at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> William,
>>>>>>>
>>>>>>> Source code and instructions found within:
>>>>>>> http://pastebin.com/KSkjkszp
>>>>>>>
>>>>>>> It produced the error on the first try. While the project file was
>>>>>>> being scanned, it was rebuilt out from under it. Given the simplicity of
>>>>>>> the test app, nothing broke, but it should be obvious why it could!
>>>>>>>
>>>>>>> c:\workdir\software2\projects\test>scons -j 2
>>>>>>> scons: Reading SConscript files ...
>>>>>>> scons: done reading SConscript files.
>>>>>>> scons: Building targets ...
>>>>>>> scanning project.prj
>>>>>>> done scanning project.prj
>>>>>>> >scanning project.prj
>>>>>>> >>>>create_project_file(["project.prj"], ["source_1.dat",
>>>>>>> "source_2.dat"])
>>>>>>> >>>>building project.prj
>>>>>>> >done scanning project.prj
>>>>>>> done building project.prj
>>>>>>> scanning project.prj
>>>>>>> done scanning project.prj
>>>>>>> version_action(["derp.txt"], ["project.prj"])
>>>>>>> compiler_action(["out.bin"], ["project.prj", "derp.txt"])
>>>>>>> creating out.bin
>>>>>>> done creating out.bin
>>>>>>> scons: done building targets.
>>>>>>>
>>>>>>>
>>>>>>> Thanks!
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Scons-users mailing list
>>>>>>> Scons-users at scons.org
>>>>>>> https://pairlist4.pair.net/mailman/listinfo/scons-users
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
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>>>
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>>>
>>
>
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