Changing workflows on Galaxy

[spficklin]

If a workflow that has been integrated with Tripal changes on the Galaxy side, there is no notification to the Tripal site that something has changed, and it is possible to re-add the same workflow twice, after a changes has been made. We need a better way to handle changes.

[Ferrisx4]

Determining whether a workflow has been updated can be accomplished by checking the UUID of the workflow, which changes every time a workflow is changed and saved. The ID of a workflow does not change.

We also need to consider the above case for the sake of reproducibility. In other words, if someone executes a workflow but later the workflow changes, there should be a way to indicate that the results were created with a prior version and a way to provide access to that prior version. From what I can tell, and from Galaxy Issue 6410, there is still work to be done on the Galaxy side to support this. At the current moment, the Galaxy API supports workflow versions, but the information provided is insufficient.