[devtools] improve error message when postgresql tools are missing
By default in at least Debian, some pg tools are not present in the
PATH. Or they may not be installed. But the tests tools expects them
to be in the PATH, and give an unhelpful 'No such file or directory'
backtrace if they're not found. To help devs using the pg tests we
improve the error message.
# -*- coding: utf-8 -*-
# copyright %(year)s %(author)s, all rights reserved.
# contact %(author-web-site)s -- mailto:%(author-email)s
#
%(long-license)s
"""%(distname)s precreate script, executed at instance creation time or when
the cube is added to an existing instance, before the schema is serialized.
This is typically to create groups referenced by the cube'schema.
"""