Add crepes export-csv command, for data export to CSV files

rattail_corepos/corepos/commands.py

@@ -105,6 +105,24 @@ class ExportCore(commands.ImportSubcommand):
         return kwargs
 
 
+class ExportCSV(commands.ExportFileSubcommand):
+    """
+    Export data from CORE to CSV file(s)
+    """
+    name = 'export-csv'
+    description = __doc__.strip()
+    default_handler_spec = 'rattail_corepos.corepos.importing.exporters:FromCoreToCSV'
+
+    def get_handler_factory(self, **kwargs):
+        if self.config:
+            spec = self.config.get('rattail_corepos.exporting', 'csv.handler',
+                                   default=self.default_handler_spec)
+        else:
+            # just use default, for sake of cmd line help
+            spec = self.default_handler_spec
+        return load_object(spec)
+
+
 class ImportCore(ImportToCore):
     """
     Import data from another CORE database