build is running cmake at every time step

[petermao]

after e545b56, build is running cmake at every time step, slowing things down considerably, rather than only on the first running of iri2016.IRI(.)

I am seeing one iteration of this output at every time step:

-- Configuring done
-- Generating done
-- Build files have been written to: <path-to...>/lib/python/site-packages/iri2016-1.11.1-py3.7.egg/iri2016/build
Scanning dependencies of target iri2016
[ 63%] Built target iri2016
Scanning dependencies of target iri2016_driver
Scanning dependencies of target test_iri2016
[100%] Built target iri2016_driver
[100%] Built target test_iri2016

Should this line be reinstated?

iri2016/src/iri2016/build.py

Line 8 in ca66b2c

if not importlib.resources.is_resource(__package__, exe_name):

[petermao]

My solution above is not totally satisfactory, either. If I tweak iri2016_driver.f90 and do a pip install . --user from the top level of the iri2016 package, most of the code updates in the install location, but the old compiled iri2016_driver remains.

In order to run the new code, I run (in python)

import iri2016 as iri
iri.build.build()

and then everything is as expected.

Can the "build on run" logic be modified to rerun build if the compiled iri2016_driver is older than the source files?