Add a script to create review dashboard for a milestone

This script queries launchpad to get:
1) Bug number of bugs tagged with rfe-approved
2) Bug number of critical/high bugs
3) list of blueprints targeted for the milestone passed as param

With this information the scripts prints queries that can be used
in Gerrit directly and creates a .dash file that can be used by
gerrit-dash-creator to output a dashboard url.

Change-Id: I09f8c04c6c609d4791bd5af825105ba092831e43

tools/milestone-review-dash.py

@@ -0,0 +1,142 @@
+#!/usr/bin/env python
+
+#    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 argparse
+import sys
+
+from launchpadlib.launchpad import Launchpad
+
+
+def is_milestone_valid(project, name):
+    milestone_names = []
+    for s in project.active_milestones:
+        milestone_names.append(s.name)
+        if name == s.name:
+            return True
+    print("No active milestone found")
+    print("List of active milestones %s" % milestone_names)
+    return False
+
+
+def _search_task(project, **kwargs):
+    bugs = project.searchTasks(**kwargs)
+    if not bugs:
+        return
+    gerrit_query = "("
+    for b in bugs:
+        gerrit_query += ("topic:bug/%d OR " % b.bug.id)
+    gerrit_query = gerrit_query[:-4]
+    gerrit_query += ")\n\n"
+    return gerrit_query
+
+
+def get_approved_rfe_query(project):
+    return _search_task(project, **{'tags': ['rfe-approved']})
+
+
+def get_critical_bugs_query(project):
+    return _search_task(project,
+        **{'status': ["In Progress"], 'importance': ["Critical"]})
+
+
+def get_high_bugs_query(project):
+    return _search_task(project,
+        **{'status': ["In Progress"], 'importance': ["High"]})
+
+
+def get_specs_query(project, milestone):
+    query = "("
+    for s in project.valid_specifications:
+        if s.milestone is not None:
+            if s.milestone.name == milestone:
+                query += ("topic:bp/%s OR " % s.name)
+    if query == "(":
+        # no blueprint was found
+        return
+    query = query[:-4]
+    query += ")\n"
+    return query
+
+
+def write_section(f, section_name, query):
+    print(section_name)
+    if query:
+        f.write("[section \"")
+        f.write(section_name)
+        f.write("\"]\n")
+        f.write("query = ")
+        f.write(query)
+        print(query)
+    else:
+        print("No result found\n")
+
+
+def write_queries_for_project(f, project, milestone):
+    query = get_approved_rfe_query(project)
+    section_name = "Approved RFE %s" % project.name
+    write_section(f, section_name, query)
+
+    query = get_critical_bugs_query(project)
+    section_name = "Critical Bugs %s" % project.name
+    write_section(f, section_name, query)
+
+    query = get_high_bugs_query(project)
+    section_name = "High Bugs %s" % project.name
+    write_section(f, section_name, query)
+
+    query = get_specs_query(project, milestone)
+    section_name = "Blueprints %s" % project.name
+    write_section(f, section_name, query)
+
+
+parser = argparse.ArgumentParser(
+    description='Create dashboard for critical/high bugs, approved rfe and'
+                ' blueprints. A .dash file will be created in the current'
+                ' folder that you can serve as input for gerrit-dash-creator.'
+                ' The output of the script can be used to query Gerrit'
+                ' directly.')
+parser.add_argument('milestone', type=str, help='The release milestone')
+parser.add_argument('-o', '--output', type=str, help='Output file')
+
+args = parser.parse_args()
+milestone = args.milestone
+if args.output:
+    file_name = args.output
+else:
+    file_name = milestone + '.dash'
+
+cachedir = "~/.launchpadlib/cache/"
+launchpad = Launchpad.login_anonymously('just testing', 'production', cachedir,
+                                        version="devel")
+neutron = launchpad.projects['neutron']
+neutron_client = launchpad.projects['python-neutronclient']
+if not is_milestone_valid(neutron, milestone):
+    sys.exit()
+
+with open(file_name, 'w') as f:
+    title = "[dashboard]\ntitle = Neutron %s Review Inbox\n" % milestone
+    f.write(title)
+    f.write("description = Review Inbox\n")
+    f.write("foreach = (project:openstack/neutron OR "
+            "project:openstack/python-neutronclient OR "
+            "project:openstack/neutron-specs OR "
+            "project:openstack/neutron-fwaas OR "
+            "project:openstack/neutron-lbaas OR "
+            "project:openstack/neutron-vpnaas) status:open NOT owner:self "
+            "NOT label:Workflow<=-1 "
+            "NOT label:Code-Review>=-2,self branch:master\n")
+    f.write("\n")
+
+    print("Querying Launchpad, this might take a while...")
+    write_queries_for_project(f, neutron, milestone)
+    write_queries_for_project(f, neutron_client, milestone)