Show file location for dacfx extract and export (#936)

* show file location for dacfx extract and export

* Add TargetDestination field to TaskInfo

* remove setting database and server name to null if there's packageFilePath

* remove unnecessary parameter

src/Microsoft.SqlTools.ServiceLayer/DacFx/DacFxService.cs

@@ -227,7 +227,9 @@ namespace Microsoft.SqlTools.ServiceLayer.DacFx
             {
                 try
                 {
-                    TaskMetadata metadata = TaskMetadata.Create(parameters, taskName, operation, ConnectionServiceInstance);
+                    // show file location for export and extract operations 
+                    string targetLocation = (operation is ExportOperation || operation is ExtractOperation) ? parameters.PackageFilePath : null;
+                    TaskMetadata metadata = TaskMetadata.Create(parameters, taskName, operation, ConnectionServiceInstance, targetLocation);
 
                     // put appropriate database name since connection passed was to master
                     metadata.DatabaseName = parameters.DatabaseName;

src/Microsoft.SqlTools.ServiceLayer/TaskServices/Contracts/TaskInfo.cs

@@ -35,6 +35,11 @@ namespace Microsoft.SqlTools.ServiceLayer.TaskServices.Contracts
         /// </summary>
         public string DatabaseName { get; set; }
 
+        /// <summary>
+        /// Target location for this task
+        /// </summary>
+        public string TargetLocation { get; set; }
+
         /// <summary>
         /// Task name which defines the type of the task (e.g. CreateDatabase, Backup)
         /// </summary>

src/Microsoft.SqlTools.ServiceLayer/TaskServices/SqlTask.cs

@@ -474,6 +474,7 @@ namespace Microsoft.SqlTools.ServiceLayer.TaskServices
                 Description = TaskMetadata.Description,
                 TaskExecutionMode = TaskMetadata.TaskExecutionMode,
                 IsCancelable = this.TaskToCancel != null,
+                TargetLocation = TaskMetadata.TargetLocation,
             };
         }
 

src/Microsoft.SqlTools.ServiceLayer/TaskServices/TaskMetadata.cs

@@ -41,6 +41,11 @@ namespace Microsoft.SqlTools.ServiceLayer.TaskServices
         /// </summary>
         public string DatabaseName { get; set; }
 
+        /// <summary>
+        /// Target location of this task
+        /// </summary>
+        public string TargetLocation { get; set; }
+
         /// <summary>
         /// Data required to perform the task
         /// </summary>
@@ -59,7 +64,7 @@ namespace Microsoft.SqlTools.ServiceLayer.TaskServices
         /// <param name="taskOperation">Task operation</param>
         /// <param name="connectionService">Connection Service</param>
         /// <returns>Task metadata</returns>
-        public static TaskMetadata Create(IRequestParams requestParam, string taskName, ITaskOperation taskOperation, ConnectionService connectionService)
+        public static TaskMetadata Create(IRequestParams requestParam, string taskName, ITaskOperation taskOperation, ConnectionService connectionService, string targetLocation = null)
         {
             TaskMetadata taskMetadata = new TaskMetadata();
             ConnectionInfo connInfo;
@@ -90,6 +95,7 @@ namespace Microsoft.SqlTools.ServiceLayer.TaskServices
 
             taskMetadata.TaskOperation = taskOperation;
             taskMetadata.OwnerUri = requestParam.OwnerUri;
+            taskMetadata.TargetLocation = targetLocation;
 
             return taskMetadata;
         }