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DEVELOPER_SETUP.md

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Setup for development environment

Environment setup

Mocking RomM structure

- Create the mock structure with at least one rom and empty config for manual testing

mkdir -p romm_mock/library/roms/switch
touch romm_mock/library/roms/switch/metroid.xci
mkdir -p romm_mock/resources
mkdir -p romm_mock/assets
mkdir -p romm_mock/config
touch romm_mock/config/config.yml

Setting up the backend

- Copy env.template to .env and fill the variables

cp env.template .env

- Install system dependencies

# https://mariadb.com/docs/skysql-previous-release/connect/programming-languages/c/install/#Installation_via_Package_Repository_(Linux):
sudo apt install libmariadb3 libmariadb-dev pipx

- Install python dependencies

You'll need poetry installed

https://python-poetry.org/docs/#installing-with-the-official-installer

pipx install poetry

Then create the virtual environment

# Fix disable parallel installation stuck: $> poetry config experimental.new-installer false
# Fix Loading macOS/linux stuck: $> export PYTHON_KEYRING_BACKEND=keyring.backends.null.Keyring
poetry install --sync

If you are on Arch Linux or another Arch-based distro, you need to run the command as follows:

# https://bbs.archlinux.org/viewtopic.php?id=296542
CFLAGS="-Wno-error=incompatible-pointer-types" poetry install --sync

- Spin up mariadb in docker

docker-compose up -d

- Run the backend

*__*Migrations will be run automatically when running the backend.__*

cd backend
poetry run python3 main.py

- Start a worker

cd backend
poetry run python3 worker.py

Setting up the frontend

- Install node.js dependencies

cd frontend
# npm version >= 9 needed
npm install

- Create symlink to library and resources

mkdir assets/romm
ln -s ../backend/romm_mock/resources assets/romm/resources
ln -s ../backend/romm_mock/assets assets/romm/assets

- Run the frontend

npm run dev

Setting up the linter

We use Trunk for linting, which combines multiple linters and formatters with sensible defaults and a single configuration file. You'll need to install the Trunk CLI to use it.

- Install the Trunk CLI

curl https://get.trunk.io -fsSL | bash

Alternative installation methods can be found here. On commit, the linter will run automatically. To run it manually, use the following commands:

trunk fmt
trunk check

Failing to install and run the linter will result in a failed CI check, which won't allow us to merge your PR.

Test setup

- Create the test user and database with root user

docker exec -i mariadb mariadb -u root -p<root password> < backend/romm_test/setup.sql

- Run tests

*__*Migrations will be run automatically when running the tests.__*

cd backend
# path or test file can be passed as argument to test only a subset
poetry run pytest [path/file]