Current File : //lib/python3/dist-packages/landscape/lib/juju.py
from __future__ import absolute_import
import os
import json
import logging
from landscape.lib.fs import read_text_file
def get_juju_info(config):
"""
Returns available Juju info or C{None} if the path referenced from
L{config} is not a valid file.
"""
if not os.path.exists(config.juju_filename):
return
json_contents = read_text_file(config.juju_filename)
try:
juju_info = json.loads(json_contents)
# Catch any error the json lib could throw, because we don't know or
# care what goes wrong - we'll display a generic error message and
# return None in any case.
except Exception:
logging.exception(
"Error attempting to read JSON from %s" % config.juju_filename)
return None
juju_info["api-addresses"] = juju_info["api-addresses"].split()
return juju_info
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