Return exit codes

orryverducci · Feb 18, 2018 · 9f7cb53 · 9f7cb53
1 parent 7e554f0
commit 9f7cb53
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Showing 2 changed files with 11 additions and 2 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -10,6 +10,7 @@ Release Notes
 * **NEW:** Option to include subtitle pages in exported pages
 * **IMPROVED:** Arguments provided in the wrong format are now handled more gracefully
 * **IMPROVED:** Serially transmitted services are now fully supported
+* **IMPROVED:** An exit code is now returned when an error has occurred
 * **FIXED:** Subpages within a page are now exported in a single TTI file, resolving an issue with vbit2
 * **FIXED:** TOP data pages and pages with subcode 3F7F are now decoded and outputted
 

diff --git a/TtxFromTS/Program.cs b/TtxFromTS/Program.cs
@@ -31,7 +31,7 @@ internal class Program
         /// The entry point of the application.
         /// </summary>
         /// <param name="args">The command line arguments.</param>
-        internal static void Main(string[] args)
+        internal static int Main(string[] args)
         {
             // Parse command line arguments, and run application if successful
             if (ParseArguments(args))
@@ -69,7 +69,7 @@ internal static void Main(string[] args)
                                     catch (InvalidOperationException)
                                     {
                                         OutputError("The provided packet identifier is not a teletext service");
-                                        return;
+                                        return 3;
                                     }
                                     packetsProcessed++;
                                 }
@@ -88,17 +88,25 @@ internal static void Main(string[] args)
                         Console.WriteLine($"Total number of packets: {packetsDecoded}");
                         Console.WriteLine($"Packets processed: {packetsProcessed}");
                         Console.WriteLine($"Pages decoded: {_teletextDecoder.TotalPages}");
+                        // Output success exit code
+                        return 0;
                     }
                     else if (packetsDecoded > 0)
                     {
                         OutputError("Invalid packet identifier provided");
+                        return 4;
                     }
                     else
                     {
                         OutputError("Unable to process transport stream - please check it is a valid TS file");
+                        return 5;
                     }
                 }
             }
+            else
+            {
+                return -1;
+            }
         }
 
         /// <summary>