Check dir size growth in time

growth.py

#!/usr/bin/env python

import yaml
import os
import sys
from shell import shell

path = '/Users/ahes/Workspace'
growth_threshold_percent = 1

def run_du(path):
    data = {}
    du = shell('du -d1 ' + path)
    for line in du.output():
        size, file = line.split()
        data[file] = size

    return data

def get_size():
    with open('du.yml', 'r') as f:
        data = yaml.safe_load(f)
        #print(data)
        return data

if not os.path.isfile('du.yml'):
    data = run_du(path)
    with open('du.yml', 'w') as f:
        yaml.dump(data, f)
    print('Initial du.yml file saved')
    sys.exit(0)

last_data = get_size()
current_data = run_du(path)

for file, size in current_data.items():
    if file in last_data:
        growth_percent = (int(size) - int(last_data[file])) / float(last_data[file]) * 100
        if growth_percent >= growth_threshold_percent:
            print('Size increase of {}% for file {}'.format(int(growth_percent), file))
    else:
        print('File {} not found in previous du run'.format(file))

$ python growth.py                                                                                                                                                Wed Jan 30 10:40:43 2019
Size increase of 8496% for file /Users/ahes/Workspace/growth
Size increase of 41% for file /Users/ahes/Workspace