sql: add buildset.branch column

This change adds the build's branch information to the database.

Change-Id: Ia1e234f556766cc945dec84759c6a31f244084f6

zuul/driver/sql/alembic/versions/defa75d297bf_add_branch_column.py

@@ -0,0 +1,39 @@
+# Copyright 2018 Red Hat, Inc.
+#
+# 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.
+
+"""Add branch column
+
+Revision ID: defa75d297bf
+Revises: 19d3a3ebfe1d
+Create Date: 2018-02-21 01:52:23.781875
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'defa75d297bf'
+down_revision = '19d3a3ebfe1d'
+branch_labels = None
+depends_on = None
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade(table_prefix=''):
+    op.add_column(
+        table_prefix + 'zuul_buildset', sa.Column('branch', sa.String(255)))
+
+
+def downgrade():
+    raise Exception("Downgrades not supported")

zuul/driver/sql/sqlconnection.py

@@ -96,6 +96,7 @@ class SQLConnection(BaseConnection):
             sa.Column('zuul_ref', sa.String(255)),
             sa.Column('pipeline', sa.String(255)),
             sa.Column('project', sa.String(255)),
+            sa.Column('branch', sa.String(255)),
             sa.Column('change', sa.Integer, nullable=True),
             sa.Column('patchset', sa.String(255), nullable=True),
             sa.Column('ref', sa.String(255)),
@@ -156,7 +157,7 @@ class SQLConnection(BaseConnection):
 
 class SqlWebHandler(BaseWebHandler):
     log = logging.getLogger("zuul.web.SqlHandler")
-    filters = ("project", "pipeline", "change", "patchset", "ref",
+    filters = ("project", "pipeline", "change", "branch", "patchset", "ref",
                "result", "uuid", "job_name", "voting", "node_name", "newrev")
 
     def __init__(self, connection, zuul_web, method, path):
@@ -168,6 +169,7 @@ class SqlWebHandler(BaseWebHandler):
         buildset = self.connection.zuul_buildset_table
         query = select([
             buildset.c.project,
+            buildset.c.branch,
             buildset.c.pipeline,
             buildset.c.change,
             buildset.c.patchset,
@@ -222,7 +224,7 @@ class SqlWebHandler(BaseWebHandler):
                 'skip': 0,
             }
             for k, v in urllib.parse.parse_qsl(request.rel_url.query_string):
-                if k in ("tenant", "project", "pipeline", "change",
+                if k in ("tenant", "project", "pipeline", "change", "branch",
                          "patchset", "ref", "newrev"):
                     args['buildset_filters'].setdefault(k, []).append(v)
                 elif k in ("uuid", "job_name", "voting", "node_name",

zuul/driver/sql/sqlreporter.py

@@ -52,6 +52,7 @@ class SQLReporter(BaseReporter):
                 message=self._formatItemReport(
                     item, with_jobs=False),
                 tenant=item.pipeline.layout.tenant.name,
+                branch=item.change.branch,
             )
             buildset_ins_result = conn.execute(buildset_ins)
             build_inserts = []