[cmake-developers] Where execute_process INPUT_CONTENT or INPUT_VARIABLE?

[Konstantin Podsvirov]

Hi Alan!

23.04.2017, 10:01, "Alan W. Irwin" <irwin at beluga.phys.uvic.ca>:
> On 2017-04-23 08:30+0300 Konstantin Podsvirov wrote:
>
>>  Where execute_process INPUT_CONTENT or INPUT_VARIABLE?
>>
>>  This would be very convenient for a small input.
>>
>>  Why should I always write a file for input?
>
> Hi Konstantin:
>
> I assume that last sentence refers to using the CMake FILE command
> directly to write the required file at cmake time in the build tree
> (as opposed to having to create an actual permanent file in the source
> tree to be used directly or as a prototype for a configured file in
> the build tree)? If so, I use that approach quite a bit in various
> build systems I have helped to develop to help drastically reduce the
> number of small CMake-related files in the source tree. And I far
> prefer that approach to what you seem to be asking for above which is
> some added syntax variation to EXECUTE_PROCESS to provide the same
> ability that the FILE command currently has.
>
> Note, I had to make some assumptions when answering you, and my
> apologies in advance if I have misinterpreted anything you said
> above.

You have correctly understood and assumed. Thanks for your reply.

But imagine that we need to perform a simple process and process its standard output. But this process unfortunately awaits user input to complete.

>
> Alan
> __________________________
> Alan W. Irwin
>
> Astronomical research affiliation with Department of Physics and Astronomy,
> University of Victoria (astrowww.phys.uvic.ca).
>
> Programming affiliations with the FreeEOS equation-of-state
> implementation for stellar interiors (freeeos.sf.net); the Time
> Ephemerides project (timeephem.sf.net); PLplot scientific plotting
> software package (plplot.sf.net); the libLASi project
> (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
> and the Linux Brochure Project (lbproject.sf.net).
> __________________________
>
> Linux-powered Science
> __________________________

My suggestion:

Add support for the INPUT_CONTENT or INPUT_VARIABLE arguments in execute_process command.

It seems to me that this will be a very useful improvement.

Will anyone take up the implementation of this improvement?

--
Regards,
Konstantin Podsvirov