upgrade StackExchange.Redis to v2.8.0, add and implement Redis COPY

src/EasyCaching.CSRedis/DefaultCSRedisCachingProvider.Keys.cs

@@ -1,4 +1,6 @@
-namespace EasyCaching.CSRedis
+using System;
+
+namespace EasyCaching.CSRedis
 {
     using EasyCaching.Core;
     using System.Collections.Generic;
@@ -56,6 +58,15 @@ public async Task<bool> KeyPersistAsync(string cacheKey)
             return flag;
         }
 
+        public bool KeyCopy(string sourceKey, string destinationKey, bool isReplace = false)
+        {
+            throw new NotSupportedException();
+        }
+
+        public Task<bool> KeyCopyAsync(string sourceKey, string destinationKey, bool isReplace = false)
+        {
+            throw new NotSupportedException();
+        }
         public bool KeyExists(string cacheKey)
         {
             ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));

src/EasyCaching.Core/IRedisCachingProvider.cs

@@ -47,12 +47,36 @@ public interface IRedisCachingProvider
         /// <param name="cacheKey"></param>
         /// <returns></returns>
         bool KeyPersist(string cacheKey);
+
         /// <summary>
         /// https://redis.io/commands/persist
         /// </summary>
         /// <param name="cacheKey"></param>
         /// <returns></returns>
         Task<bool> KeyPersistAsync(string cacheKey);
+
+
+        /// <summary>
+        /// Copies the value from the <paramref name="sourceKey"/> to the specified <paramref name="destinationKey"/>.
+        /// </summary>
+        /// <param name="sourceKey">The key of the source value to copy.</param>
+        /// <param name="destinationKey">The destination key to copy the source to.</param>
+        /// <param name="isReplace">Whether to overwrite an existing values at <paramref name="destinationKey"/>. If <see langword="false"/> and the key exists, the copy will not succeed.</param>
+        /// <returns><see langword="true"/> if key was copied. <see langword="false"/> if key was not copied.</returns>
+        /// <remarks>https://redis.io/commands/copy</remarks>
+        bool KeyCopy(string sourceKey, string destinationKey, bool isReplace = false);
+
+
+        /// <summary>
+        /// Copies the value from the <paramref name="sourceKey"/> to the specified <paramref name="destinationKey"/>.
+        /// </summary>
+        /// <param name="sourceKey">The key of the source value to copy.</param>
+        /// <param name="destinationKey">The destination key to copy the source to.</param>
+        /// <param name="isReplace">Whether to overwrite an existing values at <paramref name="destinationKey"/>. If <see langword="false"/> and the key exists, the copy will not succeed.</param>
+        /// <returns><see langword="true"/> if key was copied. <see langword="false"/> if key was not copied.</returns>
+        /// <remarks>https://redis.io/commands/copy</remarks>
+        Task<bool> KeyCopyAsync(string sourceKey, string destinationKey, bool isReplace = false);
+
         /// <summary>
         /// 
         /// </summary>

src/EasyCaching.Redis/DefaultRedisCachingProvider.Keys.cs

@@ -53,7 +53,7 @@ public bool KeyPersist(string cacheKey)
             var flag = _cache.KeyPersist(cacheKey);
             return flag;
         }
-
+        
         public async Task<bool> KeyPersistAsync(string cacheKey)
         {
             ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
@@ -62,6 +62,24 @@ public async Task<bool> KeyPersistAsync(string cacheKey)
             return flag;
         }
 
+        public bool KeyCopy(string sourceKey, string destinationKey, bool isReplace = false)
+        {
+            ArgumentCheck.NotNullOrWhiteSpace(sourceKey, nameof(sourceKey));
+            ArgumentCheck.NotNullOrWhiteSpace(destinationKey, nameof(destinationKey));
+
+            var flag = _cache.KeyCopy(sourceKey,destinationKey,_cache.Database,isReplace);
+            return flag;
+        }
+
+        public async Task<bool> KeyCopyAsync(string sourceKey, string destinationKey, bool isReplace = false)
+        {
+            ArgumentCheck.NotNullOrWhiteSpace(sourceKey, nameof(sourceKey));
+            ArgumentCheck.NotNullOrWhiteSpace(destinationKey, nameof(destinationKey));
+
+            var flag = await _cache.KeyCopyAsync(sourceKey,destinationKey,_cache.Database,isReplace);
+            return flag;
+        }
+
         public bool KeyExists(string cacheKey)
         {
             ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));

src/EasyCaching.Redis/EasyCaching.Redis.csproj

@@ -33,7 +33,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="StackExchange.Redis" Version="2.7.33" />
+		<PackageReference Include="StackExchange.Redis" Version="2.8.0" />
 	</ItemGroup>
 	<ItemGroup>
 		<ProjectReference Include="..\EasyCaching.Core\EasyCaching.Core.csproj" />