Fix increment_path() with multiple-suffix filenames

[glenn-jocher]

Fix for #5503

python detect.py --visualize --source path/to/file.suffix1.jpg

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Enhancing path creation process in Ultralytics' YOLOv5 codebase.

📊 Key Changes

• Simplified the file/directory creation logic within the increment_path function.
• Removed unnecessary code that checked for the existence of a directory before creating it.

🎯 Purpose & Impact

• Eliminates redundant checks, streamline code readability and maintainability. 🧹
• Provides more robust directory creation with less code, potentially reducing bugs. 🐞➡️🛡️
• Users can expect a more efficient path incrementation function, indirectly affecting file saving operations. ⏩

[SpongeBab]

@glenn-jocher It is same as before.

Maybe this is the result you want.
But I think we should get, skip the decimal.
desk2-1000-yolov5p2-bs2-16-iou0.65-HardSwish-640
desk2-1000-yolov5p2-bs2-16-iou0.65-HardSwish-6402
desk2-1000-yolov5p2-bs2-16-iou0.65-HardSwish-6403

[glenn-jocher]

@SpongeBab yes it looks like we need an additional fix then with an is_dir() check to control the increment behavior better between files and dirs (it's treating your dirs as files currently).

TODO: Better file vs dir incrementing in incremement_path()

[glenn-jocher]

@SpongeBab #5523 is now merged and should improve incrementing behavior now to correctly handle files vs directories. Please git pull and see if this resolves your directory naming issue please.

print(increment_path('runs'))
print(increment_path('export.py'))
print(increment_path('abc.def.dir'))
print(increment_path('abc.def.file'))

# Returns
# runs2
# export2.py
# abc.def.dir2
# abc.def2.file