Auto deletion of old files

delete_old_files.py

#!/usr/bin/env python2

import os
from glob import glob
from datetime import datetime, timedelta

root_dir = '/var/local/crm/data/launches/'

def print_oldfiles(root_dir, olddays=20, minsizemb=10):
    sizesmb = []
    names = []
    for f in os.listdir(root_dir):
        fpath = os.path.join(root_dir, f)
        if os.path.isdir(fpath):
            for csvfile in glob(fpath + '/*.csv'):
                try:
                    mtime = os.path.getmtime(csvfile)
                except OSError:
                    mtime = 0
                last_modified_date = datetime.fromtimestamp(mtime)
                fsizemb = os.path.getsize(csvfile)/1024/1024
                if last_modified_date < datetime.now() - timedelta(days=olddays) and fsizemb > minsizemb:
                    #print(csvfile)
                    names.append(csvfile)
                    sizesmb.append(fsizemb)
                    #print(last_modified_date)
                    #print('{} mb'.format(fsizemb))
    return names, sizesmb

def delete_files(filelist):
    for fpath in filelist:
        os.unlink(fpath)

if __name__ == '__main__':
    files, sizes = print_oldfiles(root_dir, 30)
    print('total files: {}, size: {} mb'.format(len(files), sum(sizes)))
    import time
    time.sleep(5)
    delete_files(files)
    print('files deleted!')