feat: use xcon.conf.Settings.[environment/service] instead of SERVICE…

…_NAME on Config object; etc.

Want to use xcon's Settings object as the place to get default/global values.

tests/conftest.py

@@ -0,0 +1,4 @@
+import os
+
+os.environ['APP_NAME'] = 'testing'
+os.environ['APP_ENV'] = 'unit'

tests/normal_tests/conftest.py

@@ -4,12 +4,13 @@
 import pytest
 from xcon import config
 from xboto.resource import dynamodb
+from xcon.conf import settings
 
-# have a semi-really looking environmental variable to test with.
-os.environ["DJANGO_SETTINGS_MODULE"] = "somemodule.some_app.settings.tests"
 
-service_name_at_import_time = str(config.SERVICE_NAME)
-app_env_at_import_time = str(config.APP_ENV)
+service_name_at_import_time = os.environ['APP_NAME']
+app_env_at_import_time = os.environ['APP_ENV']
+
+os.environ['SOME_ENV_VAR'] = 'hello'
 
 
 def test_ensure_config_is_at_baseline_at_module_import_time():
@@ -25,7 +26,7 @@ def directory():
         an isolated XContext for you as well.
     """
     from xcon.directory import Directory
-    return Directory(service=config.SERVICE_NAME, env=config.APP_ENV)
+    return Directory(service=settings.service, env=settings.environment)
 
 
 @pytest.fixture(autouse=True)

tests/test_errors.py

@@ -20,7 +20,7 @@
     DynamoProvider,
     SsmParamStoreProvider,
     SecretsManagerProvider,
-    DynamoCacher, default_provider_types,
+    DynamoCacher,
 )
 from xcon.providers.dynamo import _ConfigDynamoTable
 

xcon/__init__.py

@@ -50,5 +50,11 @@
 from .config import ConfigSettings
 from .conf import settings
 
+from zsetup import setup
 
 __version__ = '0.1.0'
+
+setup(
+    app_main_module_file=__file__, app_version=__version__,
+    app_name='configManagerExperimentalTest'
+)

xcon/conf.py

@@ -1,14 +1,9 @@
-from xsentinels.default import DefaultType, Default
 from xsettings import Settings as _Settings, SettingsField
-from typing import (
-    Dict, Union, Iterable, Type, Any, Optional, List, Sequence
-)
-from .directory import DirectoryListing, DirectoryOrPath, Directory
+from typing import Type, Optional, Sequence
+from .directory import DirectoryListing, Directory
 from . import providers
 from .provider import Provider
-from .providers import DynamoCacher
 from xsettings.env_settings import EnvVarRetriever
-import os
 
 
 _env_retriever = EnvVarRetriever()
@@ -21,15 +16,15 @@ def __init__(self):
         #  empty-objs and so on; on a per-instance basis.
         self.defaults = DirectoryListing()
 
-    service: Optional[str] = SettingsField(
-        name='APP_NAME', retriever=_env_retriever
+    service: str = SettingsField(
+        name='APP_NAME', retriever=_env_retriever, default_value='global'
     )
-    """ Defaults to `APP_NAME` environment variable. """
+    """ Defaults to `APP_NAME` environment variable; otherwise will fallback to using 'global'. """
 
-    environment: Optional[str] = SettingsField(
-        name='APP_ENV', retriever=_env_retriever
+    environment: str = SettingsField(
+        name='APP_ENV', retriever=_env_retriever, default_value='all'
     )
-    """ Defaults to `APP_ENV` environment variable. """
+    """ Defaults to `APP_ENV` environment variable; otherwise will fallback to using 'all'. """
 
     disable_default_cacher: bool = SettingsField(
         name='XCON_DISABLE_DEFAULT_CACHER', retriever=_env_retriever, default_value=False
@@ -72,6 +67,7 @@ def __init__(self):
     (which by default will use `APP_ENV` environmental variable).
     """
 
+    # todo: rename without provider or somehwo indicate cacher is not used too?
     env_only_provider: bool = SettingsField(
         name='XCONF_ENV_ONLY_PROVIDER',
         retriever=_env_retriever,