Delta request-merge

[ayush1999]

Changes proposed: A new bug_extractor, that returns the time difference between request date and merge date.

Example:

>>> a = delta_request_merge()
>>> a(bug)
('55.0', datetime.datetime(2017, 8, 8, 7, 0, tzinfo=<UTC>))

If I'm not wrong, 55 is the required delta here. (right?)
@marco-c Is this similar to what was required?

[marco-c]

This is the date of the first modification to the bug, we should get the date of the first uplift request instead.

[marco-c]

If I'm not wrong, 55 is the required delta here. (right?)

55 is the version of Firefox.

You should calculate the difference between the uplift request date and the datetime.datetime(2017, 8, 8, 7, 0, tzinfo=<UTC>)

[ayush1999]

For the first uplift request, I'd have to iterate through bug['history'] to search for an added key starting from approval-mozilla right? (And return the corresponding date).

[marco-c]

Exactly, look at the uplift model for an example.

[ayush1999]

Yep, that's where I saw this. After these changes, we get datetime.timedelta(26, 40819) as a result for an arbitrary example. (26 days and 40819 seconds). In which format should this be standardized? (Something like 26.X days?)

[marco-c]

Yes, I think days would be good.

[ayush1999]

Ok, everything gets converted to days now (I'm not sure why. but the travis test takes forever). Also, @marco-c small question: I just noticed that https://github.com/mozilla/bugbug/blob/master/bugbug/bug_features.py#L135 uses the commits key in the bug, which isn't available in the bugs data (so I'm guessing this isn't a regular feature extractor.) . Can you tell me how is this supposed to work?

[marco-c]

Can you tell me how is this supposed to work?

The commit data is added to the bugs if you use commit_data=True:

bugbug/bugbug/bug_features.py

Line 213 in b9bb067

if self.commit_map is not None:

.

[marco-c]

Nit: Call this history and ind_change change, to keep the same variable names as other parts of the project.

[marco-c]

Thanks!

[ayush1999]

Travis CI fails due to an error in test_cleanup_synonyms. This can be merged now; that test can be fixed in a separate PR.

[marco-c]

Travis CI fails due to an error in test_cleanup_synonyms. This can be merged now; that test can be fixed in a separate PR.

The error should be gone if you rebase on top of current master.