feat(#528): allow roundup group users to interact with git repos

[JacobCoffee]

Description

• Adds group write bit for cloned repos

Closes

• Closes Allow roundup group to interact with tracker config clones set by Salt #528

[JacobCoffee]

@ewdurbin wdyt? will this be sufficient or did I misunderstand maybe?

[ewdurbin]

I'm not entirely sure. The goal is that the following would work without error, note that rouilj is a member of the roundup group.

ee@bugs:~$ sudo su - rouilj 
rouilj@bugs:/srv/roundup/trackers/cpython$ groups
rouilj psf-admin roundup
rouilj@bugs:~$ cd /srv/roundup/trackers/cpython/
rouilj@bugs:/srv/roundup/trackers/cpython$ git status
fatal: detected dubious ownership in repository at '/srv/roundup/trackers/cpython'
To add an exception for this directory, call:

	git config --global --add safe.directory /srv/roundup/trackers/cpython

This should be reproducible locally for verification.

[ewdurbin]

Testing, it doesn't look like this resolves the issue when bringing up the service locally.

[JacobCoffee]

This seems to work–I misunderstood what was needing done

vagrant@bugs:~$ sudo su coffee
coffee@bugs:/home/vagrant$ sudo su - rouilj 
rouilj@bugs:~$ cd /srv/roundup/trackers/cpython/
rouilj@bugs:/srv/roundup/trackers/cpython$ git status
On branch master
Your branch is up to date with 'origin/master'.

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        config.ini
        detectors/config.ini
        django-gae2django/
        rietveld/
        scripts/suggest.pyc
        wsgi.py
        wsgi.pyc

nothing added to commit but untracked files present (use "git add" to track)
rouilj@bugs:/srv/roundup/trackers/cpython$ cat /etc/gitconfig 
# TRACKER-cpython-START
[safe]
directory = /srv/roundup/trackers/cpython
# TRACKER-cpython-END
# TRACKER-jython-START
[safe]
directory = /srv/roundup/trackers/jython
# TRACKER-jython-END
# TRACKER-roundup-START
[safe]
directory = /srv/roundup/trackers/roundup
# TRACKER-roundup-END

[ewdurbin]

good to go once the linting passes!