_client.erb in gapic-generator-0.6.11

- old
+ new

@@ -95,10 +95,16 @@
     yield @config if block_given?
 
     # Create credentials
     credentials = @config.credentials
     <%- unless service.generic_endpoint? -%>
-    credentials ||= Credentials.default scope: @config.scope
+    # Use self-signed JWT if the scope and endpoint are unchanged from default,
+    # but only if the default endpoint does not have a region prefix.
+    enable_self_signed_jwt = @config.scope == <%= service.client_name %>.configure.scope &&
+                             @config.endpoint == <%= service.client_name %>.configure.endpoint &&
+                             !@config.endpoint.split(".").first.include?("-")
+    credentials ||= Credentials.default scope: @config.scope,
+                                        enable_self_signed_jwt: enable_self_signed_jwt
     if credentials.is_a?(String) || credentials.is_a?(Hash)
       credentials = Credentials.new credentials, scope: @config.scope
     end
     <%- end -%>
     @quota_project_id = @config.quota_project