Accepting request 495767 from home:dimstar:cycle

For consideration - I know it is not optimal, if you find a better solution,
please speak up.

In essence, I'm trying to get rid of the (various) build cycles that
accumulated in openSUSE:Factory (many hidden with the singlespec migration,
something the bot seems not to have gotten correct)

The issue here: if setuptools_scm requires git in the buildroot, then we get
the cycle

setuptools_scm -> git -> curl -> nghttp2 -> setuptools_scm

git reqquires curl for the network access
curl requires nghttp2 for http/2 access
nghttp2 uses setuptools as build util.

Gence, breaking at this very point seems to be the most beneficial

- Do not buildrequire git: having git in the build root causes a
  build cycle over curl -> nghttp2 -> python-setuptoos_scm -> git.
- Do not run the tests relying on git's presence.

OBS-URL: https://build.opensuse.org/request/show/495767
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-setuptools_scm?expand=0&rev=16

python-setuptools_scm.changes

@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed May 17 22:32:38 UTC 2017 - dimstar@opensuse.org
+
+- Do not buildrequire git: having git in the build root causes a
+  build cycle over curl -> nghttp2 -> python-setuptoos_scm -> git.
+- Do not run the tests relying on git's presence.
+
 -------------------------------------------------------------------
 Fri Mar  3 15:24:56 UTC 2017 - jmatejek@suse.com
 

python-setuptools_scm.spec

@@ -32,7 +32,6 @@ BuildRequires:  %{python_module setuptools}
 BuildRequires:  python-rpm-macros
 # Testing requirements
 BuildRequires:  %{python_module pytest}
-BuildRequires:  git
 BuildRequires:  mercurial
 Requires:       python-setuptools
 Recommends:     git
@@ -49,6 +48,9 @@ in scm metadata. It also handles file finders for the supperted scm's.
 %prep
 %setup -q -n setuptools_scm-%{version}
 %patch0 -p1
+# We can't pull in git into the build root, as this causes a nasty build cycle
+# git - curl - nghttp2 - setuptools - git
+rm testing/test_{git,regressions}.py
 
 %build
 %python_build