Add config extension to define importers

rattail_harvest/config.py

@@ -0,0 +1,42 @@
+# -*- coding: utf-8; -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2022 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU General Public License as published by the Free Software
+#  Foundation, either version 3 of the License, or (at your option) any later
+#  version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+#  details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+"""
+Config Extension
+"""
+
+from rattail.config import ConfigExtension
+
+
+class RattailHarvestExtension(ConfigExtension):
+    """
+    Config extension for rattail-harvest.
+    """
+    key = 'rattail_harvest'
+
+    def configure(self, config):
+
+        # rattail import-harvest
+        config.setdefault('rattail.importing', 'to_rattail.from_harvest.import.default_handler',
+                          'rattail_harvest.importing.harvest:FromHarvestToRattail')
+        config.setdefault('rattail.importing', 'to_rattail.from_harvest.import.default_cmd',
+                          'rattail import-harvest')

setup.py

@@ -99,6 +99,10 @@ setup(
             'import-harvest = rattail_harvest.commands:ImportHarvest',
         ],
 
+        'rattail.config.extensions': [
+            'rattail_harvest = rattail_harvest.config:RattailHarvestExtension',
+        ],
+
         'rattail.importing': [
             'to_rattail.from_harvest.import = rattail_harvest.importing.harvest:FromHarvestToRattail',
         ],