Integrate CF/ACDD compliance checking

[bschroeter]

In order to verify the Conventions metadata in output files, we would need to integrate CF/ACDD compliance checks into the processing chain.

http://cfconventions.org/software.html
https://github.com/ioos/compliance-checker

No timeline at this stage, just a thought starter.

[hot007]

You can leverage an existing tool that contanis both -
module use /g/data/hh5/public/modules
module load conda
cchecker.py -t {cf,acdd} $filename
Note the CF requirement is stronger than ACDD for most purposes but ACDD is worth considering.

[bschroeter]

OK, I like this idea. It looks like there is a way to integrate cchecker into other python code:

https://github.com/ioos/compliance-checker#python-usage

However, it requires that the file be written out to actually run the check rather than doing it in memory. We might have to reverse engineer it a bit to work on an in-memory dataset or write to a scratch space for testing purposes before completing a DRS run.

[bschroeter]

Pushing downstream for next major release.