Log-detective button for source-rpm builds

[praiskup]

Example build: https://copr.fedorainfracloud.org/coprs/g/copr/PyPI/build/7141457/

When the source build fails, the button still offers links to the RPM build roots that did not even start (so there are no logs).

[FrostyX]

There is:

{% for chroot in chroots %}
<li><a href="{{ url |format(build.id, chroot.name) }}">Report {{ chroot.name }}</a></li>
{% else %}
<li><a href="{{ url |format(build.id, 'srpm-builds') }}">Report SRPM build</a></li>
{% endfor %}

So this won't probably happen for all SRPM but only for builds that specified their chroots in advance and failed on SRPM.