From dbcb156816b6f9e122444aeaa131456c60580200 Mon Sep 17 00:00:00 2001
From: Hai Cao <hacao@microsoft.com>
Date: Tue, 27 Jun 2023 10:18:57 -0700
Subject: [PATCH] Add an option for copying with trailing line break in STS
 (#2122)

---
 .../QueryExecution/Contracts/CopyResultsRequest.cs           | 5 +++++
 .../QueryExecution/QueryExecutionService.cs                  | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/Microsoft.SqlTools.ServiceLayer/QueryExecution/Contracts/CopyResultsRequest.cs b/src/Microsoft.SqlTools.ServiceLayer/QueryExecution/Contracts/CopyResultsRequest.cs
index f89a5825..d1e45d64 100644
--- a/src/Microsoft.SqlTools.ServiceLayer/QueryExecution/Contracts/CopyResultsRequest.cs
+++ b/src/Microsoft.SqlTools.ServiceLayer/QueryExecution/Contracts/CopyResultsRequest.cs
@@ -27,6 +27,11 @@ namespace Microsoft.SqlTools.ServiceLayer.QueryExecution.Contracts
         /// </summary>
         public bool RemoveNewLines { get; set; }
 
+        /// <summary>
+        /// Whether to avoid adding a line break between rows during row concatenation for copying result when the previous row already has a trailing line break.
+        /// </summary>
+        public bool AvoidNewLineAfterTailingLineBreak { get; set; }
+
         /// <summary>
         /// Whether to include the column headers.
         /// </summary>
diff --git a/src/Microsoft.SqlTools.ServiceLayer/QueryExecution/QueryExecutionService.cs b/src/Microsoft.SqlTools.ServiceLayer/QueryExecution/QueryExecutionService.cs
index 594cdac4..0fc91726 100644
--- a/src/Microsoft.SqlTools.ServiceLayer/QueryExecution/QueryExecutionService.cs
+++ b/src/Microsoft.SqlTools.ServiceLayer/QueryExecution/QueryExecutionService.cs
@@ -789,7 +789,7 @@ namespace Microsoft.SqlTools.ServiceLayer.QueryExecution
                             }
                         }
                         // Add line break if this is not the last row in all selections.
-                        if (rowIndex + pageStartRowIndex != lastRowIndex)
+                        if (rowIndex + pageStartRowIndex != lastRowIndex && (!builder.ToString().EndsWith(Environment.NewLine) || !requestParams.AvoidNewLineAfterTailingLineBreak))
                         {
                             builder.Append(Environment.NewLine);
                         }