def try_post_deploy():
"""Runs post_deploy() iff it has not been run for this version yet."""
version_info = VersionInfo.get_by_key_name(
os.environ['CURRENT_VERSION_ID'])
if not version_info:
q = VersionInfo.all()
q.order('-blogokay_major')
q.order('-blogokay_minor')
q.order('-blogokay_rev')
post_deploy(q.get())
