Bug #12418
Updated by Peter Amstutz about 7 years ago
<pre>
2017-10-08_14:17:52 e51c5-8i9sb-xo9w8fidi304bcv 6764 0 stderr Unexpected error from fs_access
2017-10-08_14:17:52 e51c5-8i9sb-xo9w8fidi304bcv 6764 0 stderr Traceback (most recent call last):
2017-10-08_14:17:52 e51c5-8i9sb-xo9w8fidi304bcv 6764 0 stderr File "/usr/lib/python2.7/dist-packages/cwltool/draft2tool.py", line 578, in collect_output
2017-10-08_14:17:52 e51c5-8i9sb-xo9w8fidi304bcv 6764 0 stderr prefix = fs_access.glob(outdir)
2017-10-08_14:17:52 e51c5-8i9sb-xo9w8fidi304bcv 6764 0 stderr File "/usr/lib/python2.7/dist-packages/arvados_cwl/fsaccess.py", line 86, in glob
2017-10-08_14:17:52 e51c5-8i9sb-xo9w8fidi304bcv 6764 0 stderr patternsegments = rest.split("/")
2017-10-08_14:17:52 e51c5-8i9sb-xo9w8fidi304bcv 6764 0 stderr AttributeError: 'NoneType' object has no attribute 'split'
</pre>
The branch right before this: output collection is empty, so bool("collection") == False, as a result it doesn't exit early, however, because "rest" is None, it crashes on the next line.
<pre>
if collection and not rest:
return [pattern]
patternsegments = rest.split("/")
</pre>
We know @rest Should be using @collection is not None@
Seems that bool(collection) is False, this means collection must be None (?) Testing indicates that bool(collection) == True even when collection is empty.