individual workflow engine deps as extras?

[lukasheinrich]

the individual workfflow enginess have separate dependencies that might not be needed if one does noot use that engine.

Would it be possible to e.g. declare those as extras a la

pip install reana-client[yadage]
pip install reana-client[cwl]

etc?

[tiborsimko]

See also #174. There, we preferred to opt for appImage-like solution (that we still need to publicise) that would embed all the extras efficiently together. This works for CLI only though. Here, I guess you might be interested in Python API usage? Which would mean to revive those musing...

[mvidalgarcia]

FWIW, we've made yadage an extra in reana-commons as it is installed both in reana-client and reana-workflow-engine-yadage

[mvidalgarcia]

Same happens for snakemake, we should do the same for cwl.