Pin stable charm to ``charms.openstack`` stable branch

Fix stable charm location for ``manila``

Change-Id: I1925b18866cdb8554e07d3a5a78b5076c2258cdc

src/layer.yaml

@@ -2,3 +2,7 @@ includes:
   - layer:openstack
   - interface:manila-plugin
 repo: https://github.com/openstack/charm-manila-generic
+options:
+  basic:
+    include_system_packages: True
+    packages: ['python3-apt']

src/tests/basic_deployment.py

@@ -58,7 +58,7 @@ class ManilaGenericBasicDeployment(OpenStackAmuletDeployment):
              'constraints': {'mem': '3072M'}},
             {'name': 'rabbitmq-server'},
             {'name': 'keystone'},
-            {'name': 'manila'}
+            {'name': 'manila', 'location': 'cs:~openstack-charmers/manila'},
         ]
         super(ManilaGenericBasicDeployment, self)._add_services(
             this_service, other_services)

src/wheelhouse.txt

@@ -0,0 +1,2 @@
+
+git+https://opendev.org/openstack/charms.openstack.git@stable/19.07#egg=charms.openstack

tox.ini

@@ -22,7 +22,8 @@ deps =
 [testenv:build]
 basepython = python2.7
 commands =
-    charm-build --log-level DEBUG -o {toxinidir}/build src {posargs}
+    charm-build --log-level DEBUG -o {toxinidir}/build \
+        -w transitional-wheelhouse-override.txt src {posargs}
 
 [testenv:py27]
 basepython = python2.7

transitional-wheelhouse-override.txt

@@ -0,0 +1,6 @@
+# NOTE(fnordahl): the stable branch needs to have this wheelhouse override
+# in place until transition to ``include_system_packages=false`` is complete
+pip>=7.0.0,<8.2.0
+setuptools>24.3,<=39.0.1
+setuptools-scm<=1.17.0
+git+https://github.com/juju/charm-helpers.git@stable/19.07#egg=charmhelpers