add tooling to list em series from data

Change-Id: I114f08c0c1c38a31f34d798562dd530910bcd3d5

doc/source/reference/using.rst

@@ -931,3 +931,12 @@ is equivalent to:
 ::
 
   ./list_unreleased_changes.sh stable/liberty $(list-deliverables --repos --series liberty)
+
+list-em-series
+--------------
+
+Command to list all series tagged as in extended maintenance.
+
+::
+
+  tox -e venv -- list-em-series

openstack_releases/cmds/list_em_series.py

@@ -0,0 +1,26 @@
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import os
+
+from openstack_releases import series_status
+
+
+BASE_PATH = os.path.dirname(os.path.realpath(__file__))
+ROOT_DIR = f'{BASE_PATH}/../../data'
+
+
+def main():
+    series = series_status.SeriesStatus.from_directory(ROOT_DIR)
+    for serie in series:
+        if series.get(serie).is_em:
+            print(serie)

openstack_releases/series_status.py

@@ -47,6 +47,10 @@ class Series(object):
     def eol_date(self):
         return self._data.get('eol-date', None)
 
+    @property
+    def is_em(self):
+        return self.status == 'extended maintenance'
+
 
 class SeriesStatus(collections.abc.Mapping):
 

setup.cfg

@@ -24,6 +24,7 @@ packages = openstack_releases
 console_scripts =
     validate-request = openstack_releases.cmds.validate:main
     list-changes = openstack_releases.cmds.list_changes:main
+    list-em-series = openstack_releases.cmds.list_em_series:main
     list-unreleased-changes = openstack_releases.cmds.list_unreleased_changes:main
     list-constraints = openstack_releases.cmds.list_constraints:main
     new-release = openstack_releases.cmds.new_release:main