conda-forge bot failures

[ericdill]

the conda-forge bot was failing to detect any imports with depfinder in this PR: regro/cf-scripts#1619. Turns out it's because the comparison code in reports.py, specifically this line was using the full file path to do the fnmatch comparison:

DEBUG    depfinder:reports.py:168 ******found ignore match for name: /usr/share/miniconda3/envs/test/conda-bld/praw_1677855233037/work/praw/reddit.py

The conda env in the conda-forge bot CI was named "test", so that was, of course, matching on */test/*

The fix here is for depfinder to strip the path so that we're only considering stuff below the working directory in the above example. ie., need to split this:

full_path=/usr/share/miniconda3/envs/test/conda-bld/praw_1677855233037/work/praw/reddit.py

into

workdir=/usr/share/miniconda3/envs/test/conda-bld/praw_1677855233037/work/

and

fname=praw/reddit.py

and then do the comparison on fname