Add the project under test to LIBS_FROM_GIT

This automatically always adds the project under test to LIBS_FROM_GIT
which effectively makes the normal "tempest full" job the same as the
"forward testing" job when it is applied to a library repo.

Change-Id: Ibbdd8a86e0ff55f67bef73e08e693b34a61b24df

roles/write-devstack-local-conf/README.rst

@@ -22,11 +22,12 @@ Write the local.conf file for use by devstack
 
    As a special case, the variable ``LIBS_FROM_GIT`` will be
    constructed automatically from the projects which appear in the
-   ``required-projects`` list defined by the job.  To instruct
-   devstack to install a library from source rather than pypi, simply
-   add that library to the job's ``required-projects`` list.  To
-   override the automatically-generated value, set ``LIBS_FROM_GIT``
-   in ``devstack_localrc`` to the desired value.
+   ``required-projects`` list defined by the job plus the project of
+   the change under test.  To instruct devstack to install a library
+   from source rather than pypi, simply add that library to the job's
+   ``required-projects`` list.  To override the
+   automatically-generated value, set ``LIBS_FROM_GIT`` in
+   ``devstack_localrc`` to the desired value.
 
 .. zuul:rolevar:: devstack_local_conf
    :type: dict

roles/write-devstack-local-conf/library/devstack_local_conf.py

@@ -207,12 +207,13 @@ class PluginGraph(DependencyGraph):
 class LocalConf(object):
 
     def __init__(self, localrc, localconf, base_services, services, plugins,
-                 base_dir, projects):
+                 base_dir, projects, project):
         self.localrc = []
         self.meta_sections = {}
         self.plugin_deps = {}
         self.base_dir = base_dir
         self.projects = projects
+        self.project = project
         if plugins:
             self.handle_plugins(plugins)
         if services or base_services:
@@ -249,11 +250,15 @@ class LocalConf(object):
                 if k == 'LIBS_FROM_GIT':
                     lfg = True
 
-        if not lfg and self.projects:
+        if not lfg and (self.projects or self.project):
             required_projects = []
-            for project_name, project_info in self.projects.items():
-                if project_info.get('required'):
-                    required_projects.append(project_info['short_name'])
+            if self.projects:
+                for project_name, project_info in self.projects.items():
+                    if project_info.get('required'):
+                        required_projects.append(project_info['short_name'])
+            if self.project:
+                if self.project['short_name'] not in required_projects:
+                    required_projects.append(self.project['short_name'])
             if required_projects:
                 self.localrc.append('LIBS_FROM_GIT={}'.format(
                     ','.join(required_projects)))
@@ -291,6 +296,7 @@ def main():
             base_dir=dict(type='path'),
             path=dict(type='str'),
             projects=dict(type='dict'),
+            project=dict(type='dict'),
         )
     )
 
@@ -301,7 +307,8 @@ def main():
                    p.get('services'),
                    p.get('plugins'),
                    p.get('base_dir'),
-                   p.get('projects'))
+                   p.get('projects'),
+                   p.get('project'))
     lc.write(p['path'])
 
     module.exit_json()

roles/write-devstack-local-conf/library/test.py

@@ -57,7 +57,8 @@ class TestDevstackLocalConf(unittest.TestCase):
                        p.get('services'),
                        p.get('plugins'),
                        p.get('base_dir'),
-                       p.get('projects'))
+                       p.get('projects'),
+                       p.get('project'))
         lc.write(p['path'])
 
         plugins = []
@@ -120,17 +121,22 @@ class TestDevstackLocalConf(unittest.TestCase):
                 'short_name': 'devstack-plugin',
             },
         }
+        project = {
+            'short_name': 'glance',
+        }
         p = dict(base_services=[],
                  base_dir='./test',
                  path=os.path.join(self.tmpdir, 'test.local.conf'),
-                 projects=projects)
+                 projects=projects,
+                 project=project)
         lc = LocalConf(p.get('localrc'),
                        p.get('local_conf'),
                        p.get('base_services'),
                        p.get('services'),
                        p.get('plugins'),
                        p.get('base_dir'),
-                       p.get('projects'))
+                       p.get('projects'),
+                       p.get('project'))
         lc.write(p['path'])
 
         lfg = None
@@ -138,7 +144,7 @@ class TestDevstackLocalConf(unittest.TestCase):
             for line in f:
                 if line.startswith('LIBS_FROM_GIT'):
                     lfg = line.strip().split('=')[1]
-        self.assertEqual('nova,oslo.messaging', lfg)
+        self.assertEqual('nova,oslo.messaging,glance', lfg)
 
     def test_overridelibs_from_git(self):
         "Test that LIBS_FROM_GIT can be overridden"
@@ -168,7 +174,8 @@ class TestDevstackLocalConf(unittest.TestCase):
                        p.get('services'),
                        p.get('plugins'),
                        p.get('base_dir'),
-                       p.get('projects'))
+                       p.get('projects'),
+                       p.get('project'))
         lc.write(p['path'])
 
         lfg = None

roles/write-devstack-local-conf/tasks/main.yaml

@@ -10,3 +10,4 @@
     local_conf: "{{ devstack_local_conf|default(omit) }}"
     base_dir: "{{ devstack_base_dir|default(omit) }}"
     projects: "{{ zuul.projects }}"
+    project: "{{ zuul.project }}"