+"""empty message
+
+Revision ID: 44e138485931
+Revises: 9e2ac631efb0
+Create Date: 2018-07-28 14:45:28.879331
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '44e138485931'
+down_revision = '9e2ac631efb0'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ # ### commands auto generated by Alembic - please adjust! ###
+ op.add_column('package_release', sa.Column('commit_hash', sa.String(length=41), nullable=True, server_default=None))
+ # ### end Alembic commands ###
+
+
+def downgrade():
+ # ### commands auto generated by Alembic - please adjust! ###
+ op.drop_column('package_release', 'commit_hash')
+ # ### end Alembic commands ###