102 def fetch_artifact(branch, build, target, name):  argument
107     logger().info('Fetching %s from %s %s (artifacts matching %s)', build,
111            '--bid', build, name]
115 def start_branch(build):  argument
117     branch_name = 'update-' + (build or 'latest')
122 def commit(branch, build, add_paths):  argument
129         Taken from branch {branch}.""").format(branch=branch, build=build)
145 def install_new_release(branch, build, install_dir):  argument
148         install_entry(branch, build, install_dir, entry)
151 def install_entry(branch, build, install_dir, entry):  argument
158     fetch_artifact(branch, build, target, name)
202         start_branch(args.build)
204     install_new_release(args.branch, args.build, install_dir)
206     commit(args.branch, args.build, artifacts)