add csv recognition to tooling (#3881)

Co-authored-by: Anna Scholtz <anna@scholtzan.net>

bigquery_etl/cli/query.py

@@ -1839,8 +1839,13 @@ def _deploy_external_data(
             _attach_metadata(metadata_file_path, table)
 
             if not table.created:
-                if metadata.external_data.format == ExternalDataFormat.GOOGLE_SHEET:
-                    external_config = bigquery.ExternalConfig("GOOGLE_SHEETS")
+                if metadata.external_data.format in (
+                    ExternalDataFormat.GOOGLE_SHEET,
+                    ExternalDataFormat.CSV,
+                ):
+                    external_config = bigquery.ExternalConfig(
+                        metadata.external_data.format.value.upper()
+                    )
                     external_config.source_uris = metadata.external_data.source_uris
                     external_config.ignore_unknown_values = True
                     external_config.autodetect = False
@@ -1851,6 +1856,7 @@ def _deploy_external_data(
                     table.external_data_configuration = external_config
                     table = client.create_table(table)
                     click.echo(f"Destination table {full_table_id} created.")
+
                 else:
                     click.echo(
                         f"External data format {metadata.external_data.format} unsupported."

bigquery_etl/metadata/parse_metadata.py

@@ -118,6 +118,7 @@ class ExternalDataFormat(enum.Enum):
     """Represents the external types fo data that are supported to be integrated."""
 
     GOOGLE_SHEET = "google_sheet"
+    CSV = "csv"
 
 
 @attr.s(auto_attribs=True)