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🚀 How to Contribute to Letta

Thank you for investing time in contributing to our project! Here's a guide to get you started.

1. 🚀 Getting Started

🍴 Fork the Repository

First things first, let's get you a personal copy of Letta to play with. Think of it as your very own playground. 🎪

  1. Head over to the Letta repository on GitHub.
  2. In the upper-right corner, hit the 'Fork' button.

🚀 Clone the Repository

Now, let's bring your new playground to your local machine.

git clone https://github.com/your-username/MemGPT.git

🧩 Install Dependencies

Installing dependencies with poetry (recommended):

First, install Poetry using the official instructions here.

Once Poetry is installed, navigate to the Letta directory and install the Letta project with Poetry:

cd Letta
poetry shell
poetry install -E dev -E postgres -E local

Now when you want to use letta, make sure you first activate the poetry environment using poetry shell:

$ poetry shell
(pyletta-py3.10) $ letta run

Alternatively, you can use poetry run (which will activate the poetry environment for the letta run command only):

poetry run letta run

Installing dependencies with pip:

First you should set up a dedicated virtual environment. This is optional, but is highly recommended:

cd Letta
python3 -m venv venv
. venv/bin/activate

Once you've activated your virtual environment and are in the Letta project directory, you can install the dependencies with pip:

pip install -e '.[dev,postgres,local]'

Now, you should be able to run letta from the command-line using the downloaded source code (if you used a virtual environment, you have to activate the virtual environment to access letta):

$ . venv/bin/activate
(venv) $ letta run

If you are having dependency issues using pip, we recommend you install the package using Poetry. Installing Letta from source using Poetry will ensure that you are using exact package versions that have been tested for the production build.

(Optional) Installing pre-commit

We recommend installing pre-commit to ensure proper formatting during development:

poetry run pre-commit install
poetry run pre-commit run --all-files

2. 🛠️ Making Changes

🌟 Create a Branch

Time to put on your creative hat and make some magic happen. First, let's create a new branch for your awesome changes. 🧙‍♂️

git checkout -b feature/your-feature

✏️ Make your Changes

Now, the world is your oyster! Go ahead and craft your fabulous changes. 🎨

Handling Database Migrations

If you are running Letta for the first time, your database will be automatically be setup. If you are updating Letta, you may need to run migrations. To run migrations, use the following command:

poetry run alembic upgrade head

Creating a new Database Migration

If you have made changes to the database models, you will need to create a new migration. To create a new migration, use the following command:

poetry run alembic revision --autogenerate -m "Your migration message here"

Visit the Alembic documentation for more information on creating and running migrations.

3. ✅ Testing

Before we hit the 'Wow, I'm Done' button, let's make sure everything works as expected. Run tests and make sure the existing ones don't throw a fit. And if needed, create new tests. 🕵️

Run existing tests

Running tests if you installed via poetry:

poetry run pytest -s tests

Running tests if you installed via pip:

pytest -s tests

Creating new tests

If you added a major feature change, please add new tests in the tests/ directory.

4. 🧩 Adding new dependencies

If you need to add a new dependency to Letta, please add the package via poetry add <PACKAGE_NAME>. This will update the pyproject.toml and poetry.lock files. If the dependency does not need to be installed by all users, make sure to mark the dependency as optional in the pyproject.toml file and if needed, create a new extra under [tool.poetry.extras].

5. 🚀 Submitting Changes

Check Formatting

Please ensure your code is formatted correctly by running:

poetry run black . -l 140

🚀 Create a Pull Request

You're almost there! It's time to share your brilliance with the world. 🌍

  1. Visit Letta.
  2. Click "New Pull Request" button.
  3. Choose the base branch (main) and the compare branch (your feature branch).
  4. Whip up a catchy title and describe your changes in the description. 🪄

6. 🔍 Review and Approval

The maintainers, will take a look and might suggest some cool upgrades or ask for more details. Once they give the thumbs up, your creation becomes part of Letta!

7. 📜 Code of Conduct

Please be sure to follow the project's Code of Conduct.

8. 📫 Contact

Need help or just want to say hi? We're here for you. Reach out through filing an issue on this GitHub repository or message us on our Discord server.

Thanks for making Letta even more fantastic!

WIP - 🐋 Docker Development

If you prefer to keep your resources isolated by developing purely in containers, you can start Letta in development with:

docker compose -f compose.yaml -f development.compose.yml up

This will volume mount your local codebase and reload the server on file changes.