analytics/CONTRIBUTING.md
2021-09-03 13:38:50 +03:00

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# Contributing
## Development setup
The easiest way to get up and running is to [install](https://docs.docker.com/get-docker/) and use Docker for running both Postgres and Clickhouse.
Make sure Docker, Elixir, Erlang and Node.js are all installed on your development machine.
### Start the environment:
1. Run both `make postgres` and `make clickhouse`.
2. You can set up everything with `make install`, alternatively run each command seperately:
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 `npm ci --prefix assets` to install the required node dependencies.
3. Run `make server` or `mix phx.server` to start the Phoenix server.
4. The system is now available on `localhost:8000`.
### Creating an account
1. Navigate to `http://localhost:8000/register` and fill in the form.
2. An e-mail won't actually be sent, but you can find the activation in the Phoenix logs in your terminal. Search for `[info] VERIFICATION CODE:` and enter the verification code.
3. Fill in the rest of the forms and for the domain use `dummy.site`
4. Skip the JS snippet and click start collecting data.
5. Run `make dummy_event` from the terminal to generate a fake pageview event for the dummy site.
6. 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 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`.