FastColabCopy

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Fast Multi-Threaded Google Colab File Transfering

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<h1>

 <img src="https://raw.githubusercontent.com/L0garithmic/FastColabCopy/main/img/logo.png" alt="Logo" width="140" height="110">
 FastColabCopy
</h1>
 
 Python3 script to transfer files in Google Colab 10-50x faster.
 
 


 <a href="#about-the-project">About The Project</a> •
 <a href="#usage">How To Use</a> •
 <a href="#examples">Examples</a> •
 <a href="#best-practice">Best Practice</a> •
 <a href="#credits">Credits</a> •
 <a href="examples.md">More Examples</a>

![screenshot](https://raw.githubusercontent.com/LunarWerxs/FastColabCopy/main/img/clip.gif)
 
 
## About The Project
FastColabCopy is a Python script for parallel (multi-threading) copying of files between two locations. Currently developed for Google-Drive to Google-Drive transfers using Google-Colab. This script frequently achieves 10-50x speed improvements when copying numerous small files.

## Importing

Import from GitHub:
```py
!wget https://raw.githubusercontent.com/L0garithmic/fastcolabcopy/main/fastcopy.py
import fastcopy
```

Import from Google Drive:
```py
!cp /gdrive/MyDrive/fastcopy.py .
import fastcopy
```

## Usage
```sh
usage: fast-copy.py [-h HELP] source destination [-d DELETE] [-s SYNC] [-r REPLACE]

optional arguments:
  -h --help            show this help message and exit
  source                the drive you are copying from
  destination           the drive you are copying to
  -d --delete           delete the source files after copy
  -s --sync             delete files in destination if not found in source (do not use, if using with rsync)
  -r --replace          replace files if they exist
  -t --thread           set the amount of parallel threads used
  -l --size-limit       set max size of files copied (supports gb, mb, kb) eg 1.5gb
```
The `source` and `destination` fields are required. Everything else is optional.

## Examples
```py
from google.colab import drive
drive.mount('/gdrive', force_remount=False)
import os
!wget -q https://raw.githubusercontent.com/L0garithmic/fastcolabcopy/main/fastcopy.py
import fastcopy
!python fastcopy.py /gdrive/Shareddrives/Source/. /gdrive/Shareddrives/Destination --thread 20 --size-limit 400mb
```
If you want to see copy execution time:
```mod
!pip install -q ipython-autotime
%load_ext autotime
```
Check out <a href="examples.md">examples.md</a> for some more examples.

## Best Practice
Colab has wildly varying transfer speeds, because of this, the best we can offer are suggestions:
- For large groups of medium/small files, 15-40 threads seems to work best.
- For 50+ files with significantly varying sizes, try 2 sequentially copies. `-t 15 -l 400` then `-t 2`
- For files that are 100MB+, it is best to use 2 threads. It is still faster then rsync.   
- Currently `--sync` breaks if rsync is ran after. If you are mirroring drives. Disable `--sync` and use the rsync's `--delete` function.

## Credits
- Credit to [ikonikon](https://github.com/ikonikon/fast-copy) for the base multi-threading code.   
- Thanks to [@Ostokhoon](https://www.freelancer.com/u/Ostokhoon) for ALL argument and folder hierarchy functionality.

FastColabCopy

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