Ignore non-matching ldconfig lines without blowing up

[jeffcasavant]

I am running on Linux, with ldconfig --version:

ldconfig (GNU libc) 2.33
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Andreas Jaeger.

ldconfig -p, which is run to locate shared object files during the build process, adds a couple extra lines that aren't libraries. I could not find a CLI arg to make it not print these.

5126 libs found in cache `/etc/ld.so.cache'
	p11-kit-trust.so (libc6,x86-64) => /usr/lib/p11-kit-trust.so
	p11-kit-trust.so (libc6) => /usr/lib32/p11-kit-trust.so
	pybullet.so.3.08 (libc6,x86-64) => /usr/lib/pybullet.so.3.08
	lib3MF.so.1 (libc6,x86-64) => /usr/lib/lib3MF.so.1
[...snip...]
Cache generated by: ldconfig (GNU libc) release release version 2.33

These were causing the build to blow up with the following error:

13664 INFO: Looking for ctypes DLLs
Traceback (most recent call last):
  File "/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/bin/pyinstaller", line 8, in <module>
    sys.exit(run())
  File "/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/__main__.py", line 114, in run
    run_build(pyi_config, spec_file, **vars(args))
  File "/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/__main__.py", line 65, in run_build
    PyInstaller.building.build_main.main(pyi_config, spec_file, **kwargs)
  File "/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/building/build_main.py", line 725, in main
    build(specfile, kw.get('distpath'), kw.get('workpath'), kw.get('clean_build'))
  File "/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/building/build_main.py", line 672, in build
    exec(code, spec_namespace)
  File "build.spec", line 8, in <module>
    a = Analysis(
  File "/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/building/build_main.py", line 242, in __init__
    self.__postinit__()
  File "/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/building/datastruct.py", line 160, in __postinit__
    self.assemble()
  File "/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/building/build_main.py", line 438, in assemble
    ctypes_binaries = scan_code_for_ctypes(co)
  File "/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/depend/utils.py", line 145, in scan_code_for_ctypes
    binaries = _resolveCtypesImports(binaries)
  File "/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/depend/utils.py", line 319, in _resolveCtypesImports
    load_ldconfig_cache()
  File "/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/depend/utils.py", line 402, in load_ldconfig_cache
    path = m.groups()[-1]
AttributeError: 'NoneType' object has no attribute 'groups'

This PR makes pyinstaller ignore ldconfig output lines that don't match the regex that parses out the library paths. I also added a log line to make it obvious when this is doing something unexpected (for example, this will make it obvious if the fixme comment about library names containing whitespace needs to be addressed).

13274 INFO: Loading module hook 'hook-setuptools.msvc.py' from '/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/hooks'...
13276 INFO: Excluding import of numpy from module setuptools.msvc
13299 INFO: Looking for ctypes DLLs
13423 WARNING: ldconfig output line does not appear to contain a library path: 'Cache generated by: ldconfig (GNU libc) release release version 2.33'
13535 INFO: Analyzing run-time hooks ...
13542 INFO: Including run-time hook '/home/jeff/.cache/pypoetry/virtualenvs/deal-creator-dmBJBP2z-py3.8/lib/python3.8/site-packages/PyInstaller/hooks/rthooks/pyi_rth_multiprocessing.py'
13553 INFO: Looking for dynamic libraries

[bwoodsend]

Ahh, you're slightly too late. See #5547.

[jeffcasavant]

Good catch! I figured I'd go ahead and knock it out since it was a simple fix. Will watch that other PR. Thanks!