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+# ============LICENSE_START=======================================================
+# org.onap.dcae
+# ================================================================================
+# Copyright (c) 2017 AT&T Intellectual Property. All rights reserved.
+# ================================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============LICENSE_END=========================================================
+#
+# ECOMP is a trademark and service mark of AT&T Intellectual Property.
+
+# -*- coding: utf-8 -*-
+"""
+Provides dcae cli config utilities
+"""
+import os, re
+
+import click
+import six
+
+from dcae_cli import util
+from dcae_cli import _version
+from dcae_cli.util import get_app_dir, get_pref, update_pref, write_pref, pref_exists
+
+
+class ConfigurationInitError(RuntimeError):
+ pass
+
+def get_config_path():
+ '''Returns the absolute configuration file path'''
+ return os.path.join(get_app_dir(), 'config.json')
+
+
+def _init_config_user():
+ while True:
+ user = click.prompt('Please enter your user id', type=str).strip()
+
+ # There should be no special characters
+ if re.match("(?:\w*)\Z", user):
+ return user
+ else:
+ click.echo("Invalid user id. Please try again.")
+
+
+def _init_config():
+ '''Returns an initial dict for populating the config'''
+ # Grab the remote config and merge it in
+ try:
+ new_config = util.fetch_file_from_nexus("/dcae-cli/config.json")
+ except:
+ # REVIEW: Should we allow users to manually setup their config if not
+ # able to pull from remote server?
+ raise ConfigurationInitError("Could not download configuration from remote server")
+
+ new_config["user"] = _init_config_user()
+ new_config["cli_version"] = _version.__version__
+
+ if "db_url" not in new_config or not new_config["db_url"]:
+ # Really you should never get to this point because the remote config
+ # should have a postgres db url.
+ fallback = ''.join(('sqlite:///', os.path.join(get_app_dir(), 'dcae_cli.db')))
+ new_config["db_url"] = fallback
+
+ return new_config
+
+
+def should_force_reinit(config):
+ """Configs older than 2.0.0 should be replaced"""
+ ver = config.get("cli_version", "0.0.0")
+ return int(ver.split(".")[0]) < 2
+
+def get_config():
+ '''Returns the configuration dictionary'''
+ return get_pref(get_config_path(), _init_config)
+
+
+# These functions are used to fetch the configurable path to the various json
+# schema files used in validation.
+
+def get_path_component_spec():
+ return get_config().get("path_component_spec",
+ "/schemas/component-specification/dcae-cli-v3/component-spec-schema.json")
+
+def get_path_data_format():
+ return get_config().get("path_data_format",
+ "/schemas/data-format/dcae-cli-v1/data-format-schema.json")
+
+def get_active_profile():
+ return get_config().get("active_profile", None)
+
+
+def update_config(**kwargs):
+ '''Updates and returns the configuration dictionary'''
+ return update_pref(path=get_config_path(), init_func=get_config, **kwargs)
+
+
+def _reinit_config(init_func):
+ new_config = init_func()
+ config_path = get_config_path()
+
+ if pref_exists(config_path):
+ existing_config = get_config()
+ # Make sure to clobber existing values and not other way
+ existing_config.update(new_config)
+ new_config = existing_config
+
+ write_pref(new_config, config_path)
+ return new_config
+
+def reinit_config():
+ return _reinit_config(_init_config)