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Set-up
=======


## Git


*If you don't have `git` install on your computer, look online and install it :tongue: .*


Then, you can simply clone the project repository:

```bash
git clone git@gitlab.utc.fr:rex-dri/rex-dri.git && cd rex-dri
```




## Docker and docker-compose


This projects takes advantage of `docker` and `docker-compose` to ease the setup process, continuous integration, deployments, etc.



!> If you don't have those tools on your computer, you first need to install them. You can do so by following those guides:


- [`docker`](https://docs.docker.com/install/)
- [`docker-compose`](https://docs.docker.com/compose/install/)

*To run `Docker` your user needs to belong to the `docker` user-group (creating during the install process) or to `sudo` all `docker`-related commands. The last solution is a bit annoying when developing, so you can add your user to the `docker` group: `sudo usermod -aG docker your-user`. You can find "who" is your user with the command `whoami`. **The change will take effect after you restart your computer (or close your session and reopen it)**.*


Once this is done, don't forget that you need to have docker running before using `docker-compose`. For example, on `Fedora 29` you need to run the following command:


```bash
sudo service docker start
```


Finally you can start-up all `docker` related *stuff* using the command:


```bash
make up--build
```

**When you launch the project for the first time you'll most likely have the backend container crash due to the lack of some static files. Make sure not to stop the launch process until you see `frontend_1 | ℹ 「wdm」: Compiled successfully` in the console. Then you can stop the command (`CTRL+C`) and do `make up`; you shouldn't have issues thereafter.**

You can look at the `Makefile` to have more information on that last command and the other ones that are available.


To start all the `docker` images you will then only need to use the `make up` command.

**Important: the `make up` command actually lunches `docker-compose` in an *attached* mode, so that you can easily access the logs of the docker containers. If you quit it (e.g. with `CTRL+C`), this will stop all the docker containers. So usually, you should lunch it in one shell, don't touch that shell and use another one for all other `make` command related to the containers that were lunched.**



## Initialization


To initialize the database associated with the project, you need to connect to the `backend` image:


*(As explained in the **important** section, this has to be done in another shell than the one you used for the `make up` command.)*

```bash
make shell_backend
```


Then:


- Migrate the `Django` models:


```bash
./manage.py migrate
```


- Create the initial revisions:


```bash
./manage.py createinitialrevisions
```


_NB: this last command should be run every time you migrate (modify/add) some models._



When this is done you can exit the `docker` image shell (`CTRL + D`).


## Checking setup


### Backend


Run the commands bellow to check that the backend is setup correctly:


*(Simple check of the setup)*.


```bash
make check_backend
```


*(Run `Python` tests)*


```bash
make test_backend
```


### Frontend


Run the commands bellow to check that the frontend is setup correctly:


*(Build the `React` app)*


```bash
make build_frontend
```


*NB: At the time of the writing of the documentation there is no test for the frontend...*



## You are done


Once the `Docker` images are up (command `make up`), the app is available on [http://localhost:8000](http://localhost:8000).


**Don't miss the other pages of the documentation, in particular [the one about loading 'init' data in the app](./init_data).**