🌀 Git Repository Synchronizer

A simple Bash script to keep two Git repositories in sync — ideal for mirroring git history between hosts like GitHub ↔ GitLab, or any two remote repositories that share the same project.

This tool pulls the latest changes from one repo and pushes them to the other — perfect for backups, migration workflows, or multi-platform mirroring.

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Features

• 🔄 Bidirectional syncing: Pull from one repo and push to the other
• 📦 Zero dependencies: Written in portable Bash
• 🌍 Host-agnostic: Works with GitHub, GitLab, Bitbucket, or any Git remote
• ✔️ Easy setup: Just configure your repository URLs and run
• 📜 MIT-licensed

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💡 How It Works

The script:

1. Clones each repository locally (if not already present)
2. Fetches the latest commits from both repositories
3. Fast-forwards one repository into the other
4. Pushes the synchronized history back to both remotes

This ensures both repositories stay up-to-date with each other.

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🛠️ Setup

1. Edit the script

   Open synchronize_two_git_repo.sh and set your repositories:

   REPO_A="git@github.com:you/repo-a.git"
   REPO_B="git@gitlab.com:you/repo-b.git"

Make the script executable

chmod +x synchronize_two_git_repo.sh

Run the script

./synchronize_two_git_repo.sh

Typical Use Cases

Mirror GitHub ↔ GitLab repositories

Maintain off-site backups of your code

Synchronize distributed mirrors

Automate syncing with cron or CI pipelines

📦 Requirements

Git installed and available in PATH

SSH or HTTPS access to both repositories

A system capable of running Bash scripts

⚠️ Important Notes

Both repositories must share a common history

Concurrent development on both repos may cause conflicts

For advanced workflows, manual conflict resolution may be required

🧹 License

MIT License — free to use, modify, and distribute.