Loading NLog.config from contentRootPath as last fallback (Fix Sonar) (#618)

Author: snakefoot

src/NLog.Extensions.Hosting/Extensions/ConfigureExtensions.cs

@@ -75,28 +75,33 @@ private static void TryLoadConfigurationFromContentRootPath(LogFactory logFactor
                     config.Configuration = config.LogFactory.Configuration;
                     if (!IsLoggingConfigurationLoaded(config.Configuration))
                     {
-                        var standardPath = System.IO.Path.Combine(contentRootPath, "NLog.config");
-                        if (System.IO.File.Exists(standardPath))
-                        {
-                            config.Configuration = new XmlLoggingConfiguration(standardPath, config.LogFactory);
-                        }
-                        else
-                        {
-                            var lowercasePath = System.IO.Path.Combine(contentRootPath, "nlog.config");
-                            if (System.IO.File.Exists(lowercasePath))
-                            {
-                                config.Configuration = new XmlLoggingConfiguration(lowercasePath, config.LogFactory);
-                            }
-                            else
-                            {
-                                config.Configuration = null;    // Perform default loading
-                            }
-                        }
+                        config.Configuration = LoadXmlLoggingConfigurationFromPath(contentRootPath, config.LogFactory);
                     }
                 }
             });
         }
 
+        private static LoggingConfiguration LoadXmlLoggingConfigurationFromPath(string contentRootPath, LogFactory logFactory)
+        {
+            var standardPath = System.IO.Path.Combine(contentRootPath, "NLog.config");
+            if (System.IO.File.Exists(standardPath))
+            {
+                return new XmlLoggingConfiguration(standardPath, logFactory);
+            }
+            else
+            {
+                var lowercasePath = System.IO.Path.Combine(contentRootPath, "nlog.config");
+                if (System.IO.File.Exists(lowercasePath))
+                {
+                    return new XmlLoggingConfiguration(lowercasePath, logFactory);
+                }
+                else
+                {
+                    return null;    // Perform default loading
+                }
+            }
+        }
+
         private static bool IsLoggingConfigurationLoaded(LoggingConfiguration cfg)
         {
             return cfg?.LoggingRules?.Count > 0 && cfg?.AllTargets?.Count > 0;