Git Branch Puller

This Go program automates the process of pulling all local branches in a Git repository if their corresponding remote branches exist. It traverses a specified root directory, identifies Git repositories by the presence of a .gitignore file, and updates the branches in each repository.

Features

• Recursively traverse directories to find Git repositories.
• Pull updates for all local branches that have corresponding remote branches.

Requirements

• Go 1.16 or higher
• Git

Installation

1. Clone the repository:

   git clone <repository-url>

2. Navigate into the project directory:

   cd git-branch-puller

3. Build the Go application:

   go build -o git-branch-puller

Usage

1. Run the built executable:

   ./git-branch-puller

2. Enter the root directory when prompted:

   Bitte geben Sie das Root-Verzeichnis ein: /path/to/root

3. The program will recursively traverse the specified root directory, find Git repositories, and pull updates for all local branches that have corresponding remote branches.

Example

$ ./git-branch-puller
Bitte geben Sie das Root-Verzeichnis ein: /home/user/projects
Git-ähnliches Verzeichnis gefunden: /home/user/projects/repo1
Branch main in /home/user/projects/repo1 erfolgreich gepullt.
Branch dev in /home/user/projects/repo1 erfolgreich gepullt.
Git-ähnliches Verzeichnis gefunden: /home/user/projects/repo2
Branch main in /home/user/projects/repo2 erfolgreich gepullt.
Remote-Branch feature does not exist, skipping pull in /home/user/projects/repo2.

How It Works

1. Root Directory Input: The program prompts the user to input a root directory.
2. Directory Traversal: It recursively traverses the given directory using filepath.Walk.
3. Git Repository Detection: For each directory, it checks for the presence of a .gitignore file to identify Git repositories.
4. Branch Pulling:
   • Retrieves all local branches using git branch.
   • Checks if the corresponding remote branch exists using git ls-remote.
   • For each local branch with a corresponding remote branch:
     • Checks out the branch.
     • Pulls updates from the remote branch.

Error Handling

• The program outputs error messages if any issues occur during directory traversal, branch checking, or branch pulling.
• It skips directories that do not contain Git repositories and continues with the next ones.

Contributing

Contributions are welcome! Please follow these steps to contribute:

1. Fork the repository.
2. Create a new branch for your feature or bugfix:

   git checkout -b feature-name

3. Commit your changes:

   git commit -m "Add new feature"

4. Push to the branch:

   git push origin feature-name

5. Create a pull request.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Acknowledgements

This project was inspired by the need to efficiently manage multiple Git repositories and keep local branches updated.