Rclone with Python automation -- 2

I need deploy rclone as docker container to performe unidirecional sync in Python script to delay sync task based on file size.

Should integrate subprocess to run rclone commands and control the delay logic based on file size using os or pathlib.

Here's a basic approach:

Steps:

1. Use rclone to sync files between source and destination.
2. Check the size of each file in the source directory.
3. Add a delay based on the file size before syncing, example:

- Key Points:

1. get_file_size(): Retrieves the file size in bytes.
2. calculate_delay(): Uses a simple rule to calculate delay based on the file size (e.g., 2 seconds per MB). I need can adjust the formula as I needed.
3. rclone_sync(): Runs the rclone sync command using subprocess.
4. sync_with_delay(): Walks through the source directory, calculates the delay based on file size, and performs the sync operation with the calculated delay.

Ideal Skills:
- knowledge Docker, it should work as container
- knowledge in Rclone
- knowledge in Python
- Ability to write efficient, effective scripts for sequential file handling.



Below is an example Python script that demonstrates this:

import os
import subprocess
import time
from pathlib import Path

def get_file_size(file_path):
"""Get the size of a file in bytes."""
file_size = os.path.getsize(file_path)
return file_size

def calculate_delay(file_size):
"""Calculate delay based on file size (e.g., 1 second per MB)."""
# Convert size to MB
size_in_mb = file_size / (1024 * 1024)
# Delay 2 secondsper MB
delay_time = size_in_mb
return delay_time

def rclone_sync(source, destination):
"""Perform the rclone sync."""
try:
command = ["rclone", "sync", source, destination]
subprocess.run(command, check=True)
print(f"Synced {source} to {destination}")
except subprocess.CalledProcessError as e:
print(f"Error during sync: {e}")

def sync_with_delay(source, destination):
"""Sync files with delay based on file size."""
source_path = Path(source)

# Loop over files in the source directory
for file_path in source_path.rglob('*'):
if file_path.is_file():
file_size = get_file_size(file_path)
delay_time = calculate_delay(file_size)

print(f"File: {file_path}, Size: {file_size / (1024 * 1024):.2f} MB, Delay: {delay_time:.2f} seconds")
time.sleep(delay_time)

# Perform the sync after delay
rclone_sync(str(file_path), destination)

if __name__ == "__main__":
source_dir = "/path/to/source"
dest_dir = "/path/to/destination"

sync_with_delay(source_dir, dest_dir)