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CONTRIBUTING.md

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Contributing

We welcome everyone to contribute to Plausible. This document is to help you on setting up your environment, finding a task, and opening pull requests.

Development setup

The easiest way to get up and running is to install and use Docker for running both Postgres and Clickhouse.

Make sure Docker, Elixir, Erlang and Node.js are all installed on your development machine. The .tool-versions file is available to use with asdf or similar tools.

Start the environment

  1. Run both make postgres and make clickhouse.
  2. You can set up everything with make install, alternatively run each command separately:
    1. Run mix deps.get. This will download the required Elixir dependencies.
    2. Run mix ecto.create. This will create the required databases in both Postgres and Clickhouse.
    3. Run mix ecto.migrate to build the database schema.
    4. Run mix run priv/repo/seeds.exs to seed the database. Check the Seeds section for more.
    5. Run npm ci --prefix assets to install the required client-side dependencies.
    6. Run npm ci --prefix tracker to install the required tracker dependencies.
    7. Run mix assets.setup to install Tailwind and Esbuild
    8. Run npm run deploy --prefix tracker to generate tracker files in priv/tracker/js
    9. Run mix download_country_database to fetch geolocation database
  3. Run make server or mix phx.server to start the Phoenix server.
  4. The system is now available on localhost:8000.

Seeds

You can optionally seed your database to automatically create an account and a site with stats:

  1. Run mix run priv/repo/seeds.exs to seed the database.
  2. Start the server with make server and navigate to http://localhost:8000/login.
  3. Log in with the following e-mail and password combination: [email protected] and plausible.
  4. You should now have a dummy.site site with generated stats.

Alternatively, you can manually create a new account:

  1. Navigate to http://localhost:8000/register and fill in the form.
  2. Fill in the rest of the forms and for the domain use dummy.site
  3. Skip the JS snippet and click start collecting data.
  4. Run mix send_pageview from the terminal to generate a fake pageview event for the dummy site.
  5. You should now be all set!

Stopping Docker containers

  1. Stop and remove the Postgres container with make postgres-stop.
  2. Stop and remove the Clickhouse container with make clickhouse-stop.

Volumes are preserved. You'll find that the Postgres and Clickhouse state are retained when you bring them up again the next time: no need to re-register and so on.

Note: Since we are deleting the containers, be careful when deleting volumes with docker volume prune. You might accidentally delete the database and would have to go through re-registration process.

Pre-commit hooks

pre-commit requires Python to be available locally and covers Elixir, JavaScript, and CSS. Set up with pip install --user pre-commit followed by pre-commit install. Conversely, if the prompts are far too bothersome, remove with pre-commit uninstall.

Finding a task

Bugs can be found in our issue tracker. Issues are usually up for grabs.

New features need to be discussed with the core team and the community first. If you're tackling a feature, please make sure it has been already discussed in the Discussions tab. We kindly ask contributors to use the discussion comment section to propose a solution before opening a pull request.

Pull requests without an associated issue or discussion may still be merged, but we will focus on changes that have already been talked through.