add new video edit scripts for combine video and spliting video

main.py

@@ -1,4 +1,7 @@
 #!/usr/bin/env python3
+import os
+import sys
+import fcntl
 import asyncio
 
 import package.twitch.video_info as video_info
@@ -8,8 +11,24 @@ import package.twitch.download_thumbnails as download_thumbnails
 import package.build_videos as build_videos
 import package.process_uploads as process_uploads
 
+def lock_file():
+    # Open a lock file
+    lock_file_path = "/tmp/python_script.lock"
+    fp = open(lock_file_path, 'w')
+
+    try:
+        # Try to grab an exclusive lock without blocking (LOCK_NB)
+        fcntl.lockf(fp, fcntl.LOCK_EX | fcntl.LOCK_NB)
+    except IOError:
+        print("Another instance is already running. Exiting.")
+        sys.exit(1)
+
+    # Your script logic goes here
+    print("Running exclusively on Linux/macOS...")
+
 if __name__ == "__main__":
-    upload = True
+    lock_file()
+    upload = False
 
     if upload is False:
         # Get Twitch Video Info