[petsc-dev] prefix install and module file

[Lisandro Dalcin]

On 15 January 2015 at 12:16, Lisandro Dalcin <dalcinl at gmail.com> wrote:
> On 14 January 2015 at 22:08, Aron Ahmadia <aron at ahmadia.net> wrote:
>>
>> On Wed, Jan 14, 2015 at 1:59 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
>>>
>>> Pip is new and evolving why do they still cling to prefix only at install
>>> time?
>>
>>
>> You are not pip's use case.   Prefix is one of the last things on their
>> minds, since 99% of the time they are just installing into the system
>> prefix, and in other situations permissions are handled via virtualenv or
>> some other tool.
>
> Folks, I have a proposal the issues. IMHO, the only pourpose of having
> setup.py at the root of the PETSc tree is to make it possible to "pip
> install petsc", that is, we should not expect people to run setup.py
> by themselves invoking the various Python's distutils/setuptools
> commands.
>
> According to pip documentation,
> https://pip.pypa.io/en/latest/reference/pip_install.html?highlight=egg_info#build-system-interface,
> "pip install" only uses "setup.py install", it never calls "setup.py
> build". So we can just update setup.py to do "configure
> --prefix=$PREFIX && make && make install" at setup.py's install
> command.
>
> Do you all agree about these changes? If yes, then I'll proceed to
> update setup.py to flollow "the PETSc way" of building+installing.
>

Barry, BTW, would you mind moving lib/petsc-conf/install.py to config/
? IMHO, it is a more appropriate place for the install script.



-- 
Lisandro Dalcin
============
Research Scientist
Computer, Electrical and Mathematical Sciences & Engineering (CEMSE)
Numerical Porous Media Center (NumPor)
King Abdullah University of Science and Technology (KAUST)
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