Bids metadata translation: jq: error (at <stdin>:79): string ("") and object ({"extension...) cannot be added

[mslw]

I used the BIDS extractor from this PR (as suggested in the README) datalad/datalad-neuroimaging#104 on a semi-randomly chosen PET dataset from OpenNeuro (https://doi.org/10.18112/openneuro.ds001705.v1.0.1) and it worked. But then I ran local_translate_metadata (using stephan_dev branch) and it gave me an error:

❱ ./fairly-big-catalog-workflow/local/local_translate_metadata.sh bidsmeta/bids.json bidsmeta/tbids.json
Translating line 1:
jq: error (at <stdin>:79): string ("") and object ({"extension...) cannot be added

Files produced by extraction and translation are in this gist

I didn't try investigating further. From what I can see, although the translated file was produced, some values didn't make it, eg. doi or description. The description (README) of the dataset includes some weird unicode, but I'm not sure if that could be the issue.

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Consequently, the catalog doesn't show the things that are missing:

[jsheunis]

Sorry, only seeing this now. If I understand correctly, this is related to the similar issues you encountered here: datalad/datalad-catalog#182 (comment), with my take on it described here: datalad/datalad-catalog#182 (comment). Leaving this open until the issue is fixed.