Files Organizer

renamer.py

#!/usr/bin/env python3

"""
This works for a specific set of files. (For modifications you can simply alter the regex pattern.)
This python script will organize files depending on the specified regex
For directories with files containing the following  

Introduction-to-Jedi-Force-m1-01.mp4
midichlorian-Explained-m1-02.mp4

will move m1-01, m1-02 to beginning of the file resulting 

m1-02_midichlorian-Explained.mp4

also files will be organized to directories based on module (m1, m2..) name

First copy script outside of folder. 

To execute (requires python 3):

python3 renamer.py directory_name

"""


import os
import sys
import re
import shutil


if __name__ == "__main__":
    directory = sys.argv[1]

    print("Renaming files in folder "  + directory)
    target_dir = os.path.join(os.getcwd(), directory)
    
    if (not os.path.exists(target_dir)):
        raise Exception("Folder not found")

    files = os.listdir(target_dir)
    new_lst = []
    for filename in files: 
        
        matches = re.search('(m\d+-\d+)\.mp4$', filename)
        if matches: 
            start, total = matches.span()
            crop = total - start + 1
            basename = filename[:start - 1] + filename[-4:]
            newname = matches.group(1) + "_" + basename
            os.rename(os.path.join(target_dir, filename), os.path.join(target_dir,newname))

            new_lst.append(newname)

            # rename files 
    
    if len(new_lst) == 0:
        new_lst = os.listdir(target_dir)
    #copy to directory  
    files = os.listdir(target_dir)
    for filename in sorted(new_lst):
        module = filename.split("-")[0]
        module_dir = os.path.join(target_dir, module)
        if not os.path.exists(module_dir):
            os.mkdir(module_dir)
        shutil.move(os.path.join(target_dir, filename), os.path.join(module_dir, filename))


    print ("Done organizing :)")