[Scons-dev] QMTest where_is different than Environment.py Detect

Daniel Moody dmoody256 at gmail.com
Mon Apr 9 14:00:40 EDT 2018


Im looking at the appveyor environment.

So I should make a pull request for some of those Unix tools to add common
default paths if sys.platform is win32?

Should I also include in the tests using the path from test.where_is as
part of the PATH in the generated Sconstruct? If not, is it useful for
those tests to fail if the tool is in a non-standard location?

On Mon, Apr 9, 2018, 11:57 AM Bill Deegan <bill at baddogconsulting.com> wrote:

> There is a win32.py in Platform which set's env['PATH']..
>
> Also in some cases the individual tools have default paths on win32 to
> check.
>
> What's the path YACC, bison, etc are installed on your system?
> How did you install them?
>
> It may be we need to have some more reasonable defaults for such tools if
> there is a common/default install path on windows.
>
> On Mon, Apr 9, 2018 at 12:43 PM, Daniel Moody <dmoody256 at gmail.com> wrote:
>
>> Mostly the Unix tools running on windows environments, e.g YACC, bison,
>> getext.
>>
>> Also for the environments default path, there is the posix.py in Platform
>> which sets up a default path for linux, but for Windows it relies on msvs
>> tool to setup an environment. There doesn't seem to be a analogous posix.py
>> for windows.
>>
>>
>> On Mon, Apr 9, 2018, 11:28 AM Bill Deegan <bill at baddogconsulting.com>
>> wrote:
>>
>>> Depends how it is used.
>>> If it's used in such a way that the results are then used in a generated
>>> SConstruct to specify full path to the tools, then the logic makes sense.
>>> If they are used to determine if the test should be run and they yield a
>>> path which SCons wouldn't natively find, then yes that's not a good way to
>>> determine if the test should pass.
>>>
>>> Are you concerned about some tests in particular which are failing but
>>> being run due to where_is's behavior?
>>>
>>> On Mon, Apr 9, 2018 at 12:16 PM, Daniel Moody <dmoody256 at gmail.com>
>>> wrote:
>>>
>>>> For some of the scons tool tests, the QMTest uses the test where_is
>>>> method to find the existance of the binary to determine if the test should
>>>> be run. Then when the test is actually being run, the environment uses it's
>>>> Detect method to find the binary.
>>>>
>>>> The test where_is uses os.environ['PATH'] to search in, but the Detect
>>>> method does not. This leads to cases where the os environment runtest.py
>>>> was run under is different than the default environment path that gets set
>>>> from scons.
>>>>
>>>> Should the test where_is work similar to the the environment detect for
>>>> determining if the test should be run?
>>>>
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