Use regex to determine data validity for blockers

[nathan-weinberg]

Currently, get_bugs_set() and get_jira_set() assume correct formatting of blockers within blockers.yaml. Since we have certain expectations of what kind of data we are looking for (seven digit number for bugs, 'RHOS(something)-(four digit number)' for tickets) we can use a regex to validate the data retrieved by these functions.

[EliadCohen]

I think the data validation might need to have it's own config file. As you mention, the use of RHOS[.]-[0-9] is downstream-specific and even then is openstack specific. I like the idea but from a design point of view think this should be a user entered regex in a config file. But I also think users should be able to opt for no-validation.

[nathan-weinberg]

Maybe a couple of optional fields in config.yaml - if no value is set the regex validation is not used?

[EliadCohen]

I'd say that would work @nathan-weinberg