From cc7d05a4a6d0f1aa11be5e911fcb45023f755cb6 Mon Sep 17 00:00:00 2001
From: Mitchell Paulus <paulusm14@gmail.com>
Date: Tue, 13 Aug 2024 08:59:36 -0500
Subject: [PATCH] Better handle IO exceptions when file held by another process

---
 excelchop/Program.cs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/excelchop/Program.cs b/excelchop/Program.cs
index a835e83..7b7cb02 100644
--- a/excelchop/Program.cs
+++ b/excelchop/Program.cs
@@ -98,6 +98,19 @@ static bool OptionMatches(string arg, IOption option)
                 Environment.ExitCode = 1;
                 Console.Error.Write(knownException.Message.EndWithSingleNewline());
             }
+            catch (IOException ioException)
+            {
+                if (ioException.Message.Contains("The process cannot access the file") && ioException.Message.Contains("because it is being used by another process"))
+                {
+                    Console.Error.Write(ioException.Message);
+                    if (!ioException.Message.EndsWith('\n')) Console.Error.Write('\n');
+                    Environment.ExitCode = 1;
+                    return;
+                }
+
+                // Else rethrow.
+                throw;
+            }
             catch
             {
                 Environment.ExitCode = 1;