Add sql-language-server config for LanguageServerManager (#311)

template/v1/dirs/etc/jupyter/jupyter_server_config.py

@@ -14,3 +14,16 @@
 # Enable `allow_hidden` by default, so hidden files are accessible via Jupyter server
 # Related documentation: https://jupyterlab.readthedocs.io/en/stable/user/files.html#displaying-hidden-files
 c.ContentsManager.allow_hidden = True
+
+# This will set the LanguageServerManager.extra_node_roots setting if amazon_sagemaker_sql_editor exists in the
+# environment. Ignore otherwise, don't fail the JL server start
+# Related documentation: https://jupyterlab-lsp.readthedocs.io/en/v3.4.0/Configuring.html
+try:
+    import os
+    module = __import__("amazon_sagemaker_sql_editor")
+    module_location = os.path.dirname(module.__file__)
+    c.LanguageServerManager.extra_node_roots = [
+        f'{module_location}/sql-language-server'
+    ]
+except:
+    pass