feat: add --shuffle-files cli argument

Author: rotgruengelb

cutstitch/cli.py

@@ -1,4 +1,5 @@
 import argparse
+import random
 
 from PIL import Image
 
@@ -12,12 +13,15 @@ def main():
     parser.add_argument("--mode", choices=list(CUTOUT_MODES.keys()), default="vertical", help="cutout mode (default: vertical)")
     parser.add_argument("--angle", type=float, default=45, help="angle for diagonal mode")
     parser.add_argument("--output", default="stitched.png", help="output file name")
+    parser.add_argument("--shuffle-files", type=bool, default=False, help="randomly shuffle input files before stitching")
     args = parser.parse_args()
 
     if len(args.files) < 2:
         raise RuntimeError("Must provide at least two image files")
 
     images = [Image.open(path).convert("RGBA") for path in args.files]
+    if args.shuffle_files:
+        random.shuffle(images)
     stitch_images(images, args.mode, angle=args.angle).save(args.output)
     print(f"Saved stitched image to {args.output}")