pbr uses distribution name for source for coverage; doesn't allow customizing

[Marc Abramowitz]

I was working on jenkins-job-builder and tried to measure coverage by putting this in tox.ini:

```
[testenv:cover]
python setup.py testr --coverage
```

This fails to measure coverage as coverage.py complains with:

```
Coverage.py warning: Module jenkins-job-builder was never imported.
```

Note that the distribution name is "jenkins-job-builder", but the module name is "jenkins_jobs".

Unfortunately, as clarkb points out, pbr only uses the distribution name and doesn't offer a way to customize this.

http://git.openstack.org/cgit/openstack-dev/pbr/tree/pbr/testr_command.py#n107

clarkb:
11:38 pbr is overriding what you are doing
11:38 they dont run in a different dir
11:39 its just overriding the config
11:40 try PYTHON='coverage run --parallel-mode' testr run --parallel && coverage combine
11:44 maybe submit a pbr bug and link to it in tox.ini
11:44 note the coverage html output dir should match pbrs that way jenkins can copy the html for us

[Marc Abramowitz (msabramo)]

My workaround is to create a symlink from jenkins-job-builder to jenkins-jobs in tox.ini:

https://review.openstack.org/#/c/87382/2/tox.ini

But it would be nice to not have to do such things.

[Marc Abramowitz (msabramo)]

I just submitted a proposed change to make the coverage "source" configurable:

https://review.openstack.org/89205

[Marc Abramowitz (msabramo)]

There is a similar bug in testrepository: https://bugs.launchpad.net/testrepository/+bug/1298398

[Openstack Gerrit (openstack-gerrit)]

Reviewed: https://review.openstack.org/89205
Committed: https://git.openstack.org/cgit/openstack-dev/pbr/commit/?id=d68a32126588de9d0e865f546d22293bae269130
Submitter: Jenkins
Branch: master

commit d68a32126588de9d0e865f546d22293bae269130
Author: Marc Abramowitz <email address hidden>
Date: Sat Apr 19 12:30:56 2014 -0700

    Make source configurable when using --coverage

    Change-Id: If5cd9e517d66322027408a59fd99015c91181db8
    Closes-bug: #1310008

[Marc Abramowitz (msabramo)]

Should a new release of pbr to PyPI be done? I would like to use this feature in jenkins-job-builder.

[Marc Abramowitz (msabramo)]

There is now a pbr on PyPI that fixes this.