git-annex/doc/todo/ability_to_set_metadata_from_json.mdwn

I can export metadata to JSON format, which is nice as this can now be read
into any other tool and manipulated. But I cannot find a way to set the
metadata from JSON and so I am left to figure out what changes need to be
made via the g-a interface to get to the desired state, and that is hard to
get right.

Maybe g-a metadata could grow an import-json function which would set
(overwrite) the metadata for the given file(s) from JSON input.

Thanks,
-m

> [[done]] via `git annex metadata --batch --json` --[[Joey]]