Don't print usage errors when using -h/--help

This is unfortunately due to a bug in airline itself (airlift/airline#44). So it's easier to just have a workaround in place when printing the help message.
k8ssandra · Mar 30, 2020 · ffbc678 · ffbc678
1 parent 520457a
commit ffbc678
Showing 1 changed file with 12 additions and 2 deletions.
diff --git a/management-api-server/src/main/java/com/datastax/mgmtapi/Cli.java b/management-api-server/src/main/java/com/datastax/mgmtapi/Cli.java
@@ -522,8 +522,18 @@ public static void main(String[] args) {
         }
         catch (ParseException p)
         {
-            System.err.println(String.format("Usage error: %s", p.getMessage()));
-            System.err.println();
+            //noinspection StatementWithEmptyBody
+            if (args.length > 0 && (args[0].equals("-h") || args[0].equals("--help")))
+            {
+                // don't tell the user it's a usage error
+                // a bug in airline (https://github.com/airlift/airline/issues/44) prints a usage error even if
+                // a user just uses -h/--help
+            }
+            else
+            {
+                System.err.println(String.format("Usage error: %s", p.getMessage()));
+                System.err.println();
+            }
 
             try
             {