Integration test PBR commits

* pbr/packaging.py(_get_version_from_git): Correct a bug which is
causing install failures for PBR-based projects with no Git tags.
This slipped through because integration testing was using the most
recent PBR release rather than the commit being proposed.

* tools/integration.sh: Make sure that if a PBR commit is being
tested then we install and use that source rather than the latest
PBR release.

* tox.ini(testenv:pep8): Get rid of the custom deps list for pep8
and inherit the one from testenv which is already fixed with the
self-dependency. Without this, pep8 jobs fail when run with
Setuptools 8.

Change-Id: Icc7275261e8fc0df8b0ae99184437ca50b89c13a

pbr/packaging.py

@@ -490,7 +490,7 @@ def _get_version_from_git(pre_version):
             # First, if there are no -'s or .'s, then it's just a short sha.
             # Create a synthetic version for it.
             if '-' not in raw_version and '.' not in raw_version:
-                return "0.0.0.post%s" % _get_revno_and_last_tag(git_dir)[0]
+                return "0.0.0.post%s" % _get_revno_and_last_tag(git_dir)
             # Now, we want to strip the short-sha prefix
             stripped_version = raw_version.split('-g')[0]
             # Finally, if we convert - to .post, which will turn the remaining

tools/integration.sh

@@ -6,6 +6,9 @@ function mkvenv {
     rm -rf $venv
     virtualenv $venv
     $venv/bin/pip install -U pip wheel
+    if [ $ZUUL_PROJECT = "openstack-dev/pbr" ] ; then
+        $venv/bin/pip install $pbrsdistdir
+    fi
 }
 
 # BASE should be a directory with a subdir called "new" and in that
@@ -34,6 +37,10 @@ PROJECTS=$*
 pbrsdistdir=$tmpdir/pbrsdist
 git clone $REPODIR/pbr $pbrsdistdir
 cd $pbrsdistdir
+if [ $ZUUL_PROJECT = "openstack-dev/pbr" ] ; then
+    git fetch $ZUUL_URL/$ZUUL_PROJECT $ZUUL_REF
+    git reset --hard FETCH_HEAD
+fi
 
 eptest=$tmpdir/eptest
 mkdir $eptest

tox.ini

@@ -21,8 +21,6 @@ sitepackages = True
 downloadcache = ~/cache/pip
 
 [testenv:pep8]
-deps = -r{toxinidir}/requirements.txt
-       -r{toxinidir}/test-requirements.txt
 commands = flake8 {posargs}
 
 [testenv:cover]