Add .gitattributes and normalize line endings

.gitattributes

@@ -0,0 +1,3 @@
+# If there are abnormal line endings in any file, run "git add --renormalize <file_name>", 
+# review the changes, and commit them to fix the line endings.
+* text=auto

src/Microsoft.Extensions.Configuration.AzureAppConfiguration/AzureAppConfigurationClientFactory.cs

@@ -59,7 +59,7 @@ public ConfigurationClient CreateClient(string endpoint)
             string connectionString = _connectionStrings.FirstOrDefault(cs => ConnectionStringUtils.Parse(cs, ConnectionStringUtils.EndpointSection) == endpoint);
 
             //
-            // falback to the first connection string
+            // fallback to the first connection string
             if (connectionString == null)
             {
                 string id = ConnectionStringUtils.Parse(_connectionStrings.First(), ConnectionStringUtils.IdSection);

src/Microsoft.Extensions.Configuration.AzureAppConfiguration/Extensions/ListExtensions.cs

@@ -1,56 +1,56 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 //
-using DnsClient.Protocol;
-using System;
+using DnsClient.Protocol;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 
 namespace Microsoft.Extensions.Configuration.AzureAppConfiguration.Extensions
 {
     internal static class ListExtensions
     {
-        public static List<T> Shuffle<T>(this List<T> values)
-        {
-            var rdm = new Random();
-            int count = values.Count;
-
-            for (int i = count - 1; i > 0; i--)
-            {
-                int swapIndex = rdm.Next(i + 1);
-
-                if (swapIndex != i)
-                {
-                    T value = values[swapIndex];
-                    values[swapIndex] = values[i];
-                    values[i] = value;
-                }
-            }
-
-            return values;
-        }
-
-        public static List<SrvRecord> SortSrvRecords(this List<SrvRecord> srvRecords)
-        {
-            srvRecords.Sort((a, b) =>
-            {
-                if (a.Priority != b.Priority)
-                    return a.Priority.CompareTo(b.Priority);
-
-                if (a.Weight != b.Weight)
-                    return b.Weight.CompareTo(a.Weight);
-
-                return 0;
-            });
-
-            return srvRecords;
-        }
-
+        public static List<T> Shuffle<T>(this List<T> values)
+        {
+            var rdm = new Random();
+            int count = values.Count;
+
+            for (int i = count - 1; i > 0; i--)
+            {
+                int swapIndex = rdm.Next(i + 1);
+
+                if (swapIndex != i)
+                {
+                    T value = values[swapIndex];
+                    values[swapIndex] = values[i];
+                    values[i] = value;
+                }
+            }
+
+            return values;
+        }
+
+        public static List<SrvRecord> SortSrvRecords(this List<SrvRecord> srvRecords)
+        {
+            srvRecords.Sort((a, b) =>
+            {
+                if (a.Priority != b.Priority)
+                    return a.Priority.CompareTo(b.Priority);
+
+                if (a.Weight != b.Weight)
+                    return b.Weight.CompareTo(a.Weight);
+
+                return 0;
+            });
+
+            return srvRecords;
+        }
+
         public static void AppendUnique<T>(this List<T> items, T item)
         {
-            if (item == null)
-            {
-                throw new ArgumentNullException(nameof(item));
+            if (item == null)
+            {
+                throw new ArgumentNullException(nameof(item));
             }
 
             T existingItem = items.FirstOrDefault(s => Equals(s, item));
@@ -63,6 +63,6 @@ public static void AppendUnique<T>(this List<T> items, T item)
 
             // Append to the end, keeping precedence.
             items.Add(item);
-        }
+        }
     }
-}
+}

src/Microsoft.Extensions.Configuration.AzureAppConfiguration/FeatureManagement/JsonElementExtensions.cs

@@ -1,4 +1,7 @@
-using System;
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+//
+using System;
 using System.IO;
 using System.Linq;
 using System.Text;

src/Microsoft.Extensions.Configuration.AzureAppConfiguration/LogHelper.cs

@@ -26,13 +26,13 @@ public static string BuildFeatureFlagsUnchangedMessage(string endpoint)
         }
 
         public static string BuildFeatureFlagsUpdatedMessage()
-        {
+        {
             return LoggingConstants.RefreshFeatureFlagsUpdated;
         }
 
-        public static string BuildSelectedKeyValueCollectionsUnchangedMessage(string endpoint)
-        {
-            return $"{LoggingConstants.RefreshSelectedKeyValueCollectionsUnchanged} Endpoint:'{endpoint?.TrimEnd('/')}'";
+        public static string BuildSelectedKeyValueCollectionsUnchangedMessage(string endpoint)
+        {
+            return $"{LoggingConstants.RefreshSelectedKeyValueCollectionsUnchanged} Endpoint:'{endpoint?.TrimEnd('/')}'";
         }
 
         public static string BuildSelectedKeyValuesAndFeatureFlagsUpdatedMessage()
@@ -91,12 +91,12 @@ public static string BuildLastEndpointFailedMessage(string endpoint)
         }
 
         public static string BuildFallbackClientLookupFailMessage(string exceptionMessage)
-        {
+        {
             return $"{LoggingConstants.FallbackClientLookupError}\n{exceptionMessage}";
-        }
-        public static string BuildRefreshFailedDueToFormattingErrorMessage(string exceptionMessage)
-        {
-            return $"{LoggingConstants.RefreshFailedDueToFormattingError}\n{exceptionMessage}";
+        }
+        public static string BuildRefreshFailedDueToFormattingErrorMessage(string exceptionMessage)
+        {
+            return $"{LoggingConstants.RefreshFailedDueToFormattingError}\n{exceptionMessage}";
         }
     }
 }