def _determine_repo_revision(data, treeherder_server_url):
''' Return repo_name and revision based on Pulse message data.'''
query = TreeherderApi(server_url=treeherder_server_url)
if 'project' in data:
repo_name = data['project']
if 'job_id' in data:
revision = query.query_revision_for_job(repo_name=repo_name,
job_id=data['job_id'])
elif 'resultset_id' in data:
revision = query.query_revision_for_resultset(
repo_name=repo_name, resultset_id=data['resultset_id'])
else:
LOG.error(
'We should have been able to determine the repo and revision')
sys.exit(1)
elif data['_meta']['exchange'] == 'exchange/build/normalized':
repo_name = data['payload']['tree']
revision = data['payload']['revision']
return repo_name, revision
