feat: add s3 support to excel plugin through env

dbt/adapters/duckdb/plugins/excel.py

@@ -1,3 +1,7 @@
+import os
+from typing import Any
+from typing import Dict
+
 import pathlib
 
 import pandas as pd
@@ -7,9 +11,22 @@
 
 
 class Plugin(BasePlugin):
+    def initialize(self, plugin_config: Dict[str, Any]):
+        # Pass s3 settings to plugin environment
+        if 's3_access_key_id' in plugin_config:
+            os.environ['AWS_ACCESS_KEY_ID'] = plugin_config.get('s3_access_key_id')
+        if 's3_secret_access_key' in plugin_config:
+            os.environ['AWS_SECRET_ACCESS_KEY'] = plugin_config.get('s3_secret_access_key')
+        if 's3_region' in plugin_config:
+            os.environ['AWS_DEFAULT_REGION'] = plugin_config.get('s3_region')
+
     def load(self, source_config: SourceConfig):
         ext_location = source_config["external_location"]
         ext_location = ext_location.format(**source_config.as_dict())
-        source_location = pathlib.Path(ext_location.strip("'"))
+        if 's3' in ext_location:
+            # Possible to add some treatment in the future
+            source_location = ext_location
+        else:
+            source_location = pathlib.Path(ext_location.strip("'"))
         sheet_name = source_config.get("sheet_name", 0)
         return pd.read_excel(source_location, sheet_name=sheet_name)