joy: strip extra spaces and newlines

joy

@@ -728,7 +728,7 @@ def main():
             tasks.append((image_path, caption_file))
 
     if not tasks:
-        logging.error('No input file found.')
+        logging.error("No input file found.")
         return
 
     # Validate random-tags usage
@@ -736,9 +736,7 @@ def main():
         parser.error("--random-tags can only be used when --feed-from-tags is enabled")
 
     if args.feed_from_tags is not None and args.artist_from_folder:
-        raise ValueError(
-            "feed-from-tags and artist-from-folder can't be used together"
-        )
+        raise ValueError("feed-from-tags and artist-from-folder can't be used together")
 
     if args.feed_from_tags is not None:
         logging.info("Loading e621 tag data")
@@ -775,6 +773,13 @@ def main():
 
         caption = joy_caption_model.generate_valid_caption(input_image, prompt)
 
+        # Replace multiple spaces with a single space
+        caption = " ".join(caption.split())
+        # Replace multiple newlines with a single newline
+        caption = "\n".join(
+            line for line in (line.strip() for line in caption.split("\n")) if line
+        )
+
         # Strip commas if the --dont-strip-commas flag is not set
         if not args.dont_strip_commas:
             # Existing comma stripping logic