ENH: Add feedback to result saving

[jakereps]

Resolves #98

Thoughts on verbiage? Saved to: Written to: <filepath only>. Extend the filepath beyond the relative path that is returned by .save()?

(qiime2) [17:09] qiime2-moving-pictures-tutorial $ qiime diversity beta-group-significance --i-distance-matrix cm1441/unweighted_unifrac_distance_matrix.qza --m-metadata-file sample-metadata.tsv --m-metadata-category BodySite --o-visualization cm1441/unweighted-unifrac-body-site-significance
Saved to: cm1441/unweighted-unifrac-body-site-significance.qzv
(qiime2) [17:09] qiime2-moving-pictures-tutorial $ 

[jairideout]

Thoughts on verbiage?

👍, I like the current wording. Do you think it'd be helpful to distinguish between artifacts and visualizations? i.e. Saved artifact to: foo/bar.qza and Saved visualization to: baz.qzv

What do you think about echoing using green text? That way it's easy to spot, plus it's a "successful" operation.

Do you think this should always echo (like it is now)? Or should --verbose activate it?

Extend the filepath beyond the relative path that is returned by .save()?

I like the current behavior because it'll be relative if the user provided a relative path, and absolute otherwise.

@thermokarst @ebolyen, interested in your thoughts.

[thermokarst]

I like differentiating between viz and artifact in the message, also formatting the text green sounds great. I also like the current behavior, echoing whatever the user provided as far as path. Maybe --verbose could expand relative to absolute, and pass through absolute as-is?

[jakereps]

Thanks @jairideout and @thermokarst, here's the updated output:

[thermokarst]

This looks so fancy @jakereps!

[jairideout]

👍 , thanks @jakereps !