FFCx logger leaking information with setuptools>65.5.1

[jorgensd]

With upgraded setuptools and run

from mpi4py import MPI
from dolfinx import mesh, fem
domain = mesh.create_unit_square(MPI.COMM_WORLD, 8, 8, mesh.CellType.quadrilateral)
V = fem.FunctionSpace(domain, ("Lagrange", 1))

we get output from

-> r = ffcx.codegeneration.jit.compile_elements([ufl_object], options=p_ffcx, **p_jit)
INFO:root:running build_ext
INFO:root:building 'libffcx_elements_e4fe433d26b02ded2cb20b3aae866c45eff14100' extension
INFO:root:x86_64-linux-gnu-gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -fPIC -I/usr/local/lib/python3.10/dist-packages/ffcx/codegeneration -I/usr/include/python3.10 -c libffcx_elements_e4fe433d26b02ded2cb20b3aae866c45eff14100.c -o ./libffcx_elements_e4fe433d26b02ded2cb20b3aae866c45eff14100.o -O2
INFO:root:x86_64-linux-gnu-gcc -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -g -fwrapv -O2 ./libffcx_elements_e4fe433d26b02ded2cb20b3aae866c45eff14100.o -L/usr/lib/x86_64-linux-gnu -o ./libffcx_elements_e4fe433d26b02ded2cb20b3aae866c45eff14100.cpython-310-x86_64-linux-gnu.so

This happens every time we call FFCx, causing massive output

[jorgensd]

Seems to come from cffi, i.e. ffibuilder.compile

[jorgensd]

We should probably set: https:/FEniCS/ffcx/blob/main/ffcx/codegeneration/jit.py#L279 verbose=False

[jorgensd]

@michalhabera @garth-wells @chrisrichardson are there any specific reason we have had on verbose mode for cffi by default?

[garth-wells]

The issue isn't verbose=True, but where the output is being directed to. It's helpful for the JIT log file to have the verbose output.