Git Thumbnail (Discord Bot)

This open-source utility scans through local Git repositories to find recently added images in png and tga formats, generating thumbnail collages for each git author and repository combination. These collages are then automatically posted to a specified Discord channel, providing an easy way to visually track & share new image assets across multiple projects.

Pixel Art & Team Collaboration

Transform your team's art review process! Instantly share and discuss new textures, UI designs, and game assets in Discord with automatically generated collages. Engage with reactions, comments, quotes, and easily collaborate with your team. Make asset reviews a breeze and supercharge your project's development!

This script is optimized for pixel art, scaling images without aliasing to preserve the pixel-perfect clarity essential for reviewing detailed pixel art assets. It compiles these up-scaled images into a collage for easy review and analysis of multiple assets.

Screenshot

Structure

The project consists of the following key components:

README.md: This file, containing instructions for setup and usage.
LICENSE.md: The MIT License under which this project is distributed.
thumbnail-bot.py: The main Python script that generates thumbnail collages.
thumbnail-commits.json: Tracks the most recent thumbnailed commit SHAs to avoid duplication.
thumbnail.png: The most recent collage image generated by the script.
git-refresh.sh: A shell script to clone and update local copies of the repositories.
*.log: Log files created by the scripts upon execution.
/repo1, /repo2, /repo3: Example repository folders that would be scanned by the script.

Installation Instructions

System Requirements

This script has been tested on Ubuntu 20.04+, and requires python 3, bash, ssh, and cron scheduling. It also requires creating a custom Discord App, Bot User, and generating a Bot Token.

Setup

Create a directory for Git Thumbnails:
```
mkdir GitThumbnails
cd GitThumbnails
```

Install required Python modules:

python3 -m pip install -r requirements.txt

Prepare the git-refresh.sh script:

Edit the list of local git repositories for the script to clone and pull. Also, set up the private key for GIT_SSH_COMMAND for cron scheduling. These 2 settings are found in the git-refresh.sh file.
```
nano git-refresh.sh
```
Test & Clone the repositories

After editing, grant execute permission to the git-refresh.sh file and run it to clone and update repositories. Verify that all local repos are cloned correctly and no errors are output.
```
chmod +x git-refresh.sh
./git-refresh.sh
```
Prepare the thumbnail-bot.py script:

Edit the thumbnail-bot.py script and enter your own, custom Discord Bot Token. You will need to visit the Discord Developer Portal, create a new Application, generate a bot user, and generate a token.
```
nano thumbnail-bot.py
# TOKEN = "ENTER-YOUR-DISCORD-BOT-TOKEN-HERE"
```

Usage

Run the Thumbnail Bot:

Execute thumbnail-bot.py with a Discord channel ID as an argument. This will generate and post thumbnail collages for all repositories. NOTE: The first time you run this command, it will attempt to iterate through all commits in your repos, generating 1 collage per author, per project. In other words, it will be very slow on the first run. Future runs will be extremely quick, since we keep track of the last SHA thumbnailed for each repo.
```
python3 thumbnail-bot.py <discord_channel_id>
```

Schedule Automatic Updates:

Use crontab -e to add cron jobs for automatically refreshing repository clones and generating new thumbnails.

# Refresh repos every hour at minute 0
0 */1 * * * cd "/path/to/GitThumbnails/" && ./git-refresh.sh >> git-refresh.log 2>&1

# Generate and post thumbnails every hour at minute 5
5 */1 * * * cd "/path/to/GitThumbnails/" && python3 thumbnail-bot.py <discord_channel_id> >> thumbnail-bot.log 2>&1

Replace /path/to/GitThumbnails/ and <discord_channel_id> with your actual directory path and Discord channel ID, respectively.

License

This project is licensed under the MIT License - see the LICENSE.md file for details.

Support & Contributing

We welcome contributions from the community and are excited to see how the project grows and evolves with your input. Whether you're reporting a bug, suggesting enhancements, or submitting a pull request, every contribution is valued.

Support

As an open-source project, we provide support on a volunteer basis. We prioritize a welcoming and respectful environment, and while we strive to address issues and questions promptly, there might be delays. Your understanding and patience are greatly appreciated.

OpenShot/thumbnail-discord-bot