Added NoStackTrace to ExceptionFormats (#1489)

src/Spectre.Console/Widgets/Exceptions/ExceptionFormat.cs

@@ -35,4 +35,9 @@ public enum ExceptionFormats
     /// Shortens everything that can be shortened.
     /// </summary>
     ShortenEverything = ShortenMethods | ShortenTypes | ShortenPaths,
+
+    /// <summary>
+    /// Whether or not to show the exception stack trace.
+    /// </summary>
+    NoStackTrace = 16,
 }

src/Spectre.Console/Widgets/Exceptions/ExceptionFormatter.cs

@@ -50,6 +50,11 @@ private static Grid GetStackFrames(Exception ex, ExceptionSettings settings)
         }
 
         // Stack frames
+        if ((settings.Format & ExceptionFormats.NoStackTrace) != 0)
+        {
+            return grid;
+        }
+
         var stackTrace = new StackTrace(ex, fNeedFileInfo: true);
         var frames = stackTrace
             .GetFrames()

test/Spectre.Console.Tests/Expectations/Exception/NoStackTrace.Output.verified.txt

@@ -0,0 +1,2 @@
+System.InvalidOperationException: Something threw!
+   System.InvalidOperationException: Throwing!

test/Spectre.Console.Tests/Unit/ExceptionTests.cs

@@ -108,6 +108,21 @@ public Task Should_Write_Exception_With_Tuple_Return()
         return Verifier.Verify(result);
     }
 
+    [Fact]
+    [Expectation("NoStackTrace")]
+    public Task Should_Write_Exception_With_No_StackTrace()
+    {
+        // Given
+        var console = new TestConsole().Width(1024);
+        var dex = GetException(() => TestExceptions.ThrowWithInnerException());
+
+        // When
+        var result = console.WriteNormalizedException(dex, ExceptionFormats.NoStackTrace);
+
+        // Then
+        return Verifier.Verify(result);
+    }
+
     public static Exception GetException(Action action)
     {
         try