使用 Python，递归地为过去 24 小时内创建的 all.jpg 文件创建符号链接

Question

I store my photo library organized by year and event, for example:

/mnt/mediapool/images1/2020/Day at the beach/IMG1.JPG
/mnt/mediapool/images1/2020/Day at the beach/IMG2.JPG
/mnt/mediapool/images1/2021/Sunset/IMG15.JPG

Using Python3, how can I recurse through all my images and create symbolic links inside another directory that list all images created within the last 24 hours (and 7-days, 30-days, etc..)?

For example:

/mnt/mediapool/sorted/last-24h/IMG1.JPG (symbolic link to /mnt/mediapool/images1/2020...)
/mnt/mediapool/sorted/last-24h/IMG2.JPG (symbolic link to /mnt/mediapool/images1/2020...)
/mnt/mediapool/sorted/last-24h/IMG3.JPG (symbolic link to /mnt/mediapool/images1/2020...)
/mnt/mediapool/sorted/last-7d/IMG1.JPG (symbolic link to /mnt/mediapool/images1/2020...)

Answer 1

1. Use os.walk(/mnt/mediapool/images1/) to recurse through that directory tree.

   • remember to use os.path.join() to create a full path from the parent dir to the file

2. For each file, check the creation time or the modified time with os.stat()

   • compare with the current time in seconds and calculate 24hrs/7days/30days
   • since you've got last 7 days including everything in the last 24 hours, use a loop to check each time-window and execute the next steps conditionally

3. Create the necessary directory tree for where the link would go, using os.makedirs

   • doesn't throw errors for existing dirs and allows creating a tree structure

4. Create the link to the target image with os.symlink() or pathlib.Path.symlink_to()

   • (you may be able to skip step 3 when doing step 4)