From 679f33b40659aae46147164777a18c3f48a4fd4f Mon Sep 17 00:00:00 2001
From: Julien Lecoeur <julien.lecoeur@gmail.com>
Date: Fri, 13 Oct 2017 13:51:18 +0200
Subject: [PATCH] Mixers: raise exception if no input geometry is provided

---
 src/lib/mixer/geoms/tools/px_generate_mixers.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/lib/mixer/geoms/tools/px_generate_mixers.py b/src/lib/mixer/geoms/tools/px_generate_mixers.py
index 7762f9ff5e..37d23cffe2 100644
--- a/src/lib/mixer/geoms/tools/px_generate_mixers.py
+++ b/src/lib/mixer/geoms/tools/px_generate_mixers.py
@@ -312,8 +312,11 @@ if __name__ == '__main__':
     # Find toml files
     if args.files is not None:
         filenames = args.files
-    else:
+    elif args.dir is not None:
         filenames = glob.glob(os.path.join(args.dir, '*.toml'))
+    else:
+        parser.print_usage()
+        raise Exception("Missing input directory (-d) or list of geometry files (-f)")
 
     # List of geometries
     geom_list = []