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# online-judge
### 1. Activate virtualenv:
LQDOJ: Le Quy Don Online Judge
===
[![](https://github.com/DMOJ/online-judge/workflows/build/badge.svg)](https://lqdoj.edu.vn/)
[![Python](https://img.shields.io/pypi/pyversions/tensorflow.svg?style=plastic)](https://python.org)
[![OS](https://img.shields.io/badge/Ubuntu-16.04%20%7C%2018.04%20%7C%2020.04-brightgreen)](https://ubuntu.com/download)
[![License](https://img.shields.io/badge/license-AGPL--3.0-blue)](https://www.gnu.org/licenses/agpl-3.0.en.html)
## Overview
Homepage: [https://lqdoj.edu.vn](https://lqdoj.edu.vn)
Based on [DMOJ](https://dmoj.ca/).
Supported languages:
- Assembly (x64)
- AWK
- C
- C++03 / C++11 / C++14 / C++17
- Java 11
- Pascal
- Perl
- Python 2 / Python 3
Support plagiarism detection via [Stanford MOSS](https://theory.stanford.edu/~aiken/moss/).
## Installation
Most of the setup are the same as DMOJ installations. You can view the installation guide of DMOJ here: https://docs.dmoj.ca/#/site/installation.
There is one minor change: Instead of `git clone https://github.com/DMOJ/site.git`, you clone this repo `git clone https://github.com/LQDJudge/online-judge.git`.
Some frequent difficulties when installation:
1. Missing the `local_settings.py`. You need to copy the `local_settings.py` in order to pass the check.
2. Missing the problem folder in `local_settings.py`. You need to create a folder to contain all problem packages and configure in `local_settings.py`.
3. Missing static folder in `local_settings.py`. Similar to problem folder, make sure to configure `STATIC_FILES` inside `local_settings.py`.
4. Missing configure file for judges. Each judge must have a seperate configure file. To create this file, you can run `python dmojauto-conf`. Checkout all sample files here https://github.com/DMOJ/docs/blob/master/sample_files.
## Usage
Suppose you finished all the installation. Everytime you want to run a local server, follow these steps:
1. Activate virtualenv:
```bash
source dmojsite/bin/activate
### 2. Remember to change the local_settings
```
### 3. Run server:
2. Run server:
```bash
python manage.py runserver 0.0.0.0:8000
```
### 4. Create configure file for judge:
python dmojauto-conf
3. Create a bridge (this is opened in a different terminal with the second step if you are using the same machine)
```bash
python manage.py runbridged
```
### 5. Create folder for problems, change the dir in judge conf file and local_settings.py
4. Create a judge (another terminal)
```bash
dmoj 0.0.0.0 -p 9999 -c <path to yml configure file>
```
Here we suppose you use the default port 9999 for bridge in `settings.py`. You can create multiple judges, each should be in a seperate terminal.
### 6. Connect judge:
+ python manage.py runbridged
+ dmoj 0.0.0.0 -p 9999 -c judge/conf1.yml (depend on port in the local_settings.py and directory of conf file)
**Optional**
### 7. Update vietnamese translation:
- go to locale/vi
- modify .po file
- python manage.py compilemessages
- python manage.py compilejsi18n
5. Run celery worker (This is server's queue. It may be necessary in some functions)
```bash
celery -A dmoj_celery worker
```
###8. Run chat server:
docker run -p 6379:6379 -d redis:2.8
6. Run a live event server (So everything is updated lively like in the production)
```bash
node websocket/daemon.js
```
## Deploy
Most of the steps are similar to Django tutorials. Here are two usual steps:
1. Update vietnamese translation:
- If you add any new phrases in the code, ```python manage.py makemessages```
- go to `locale/vi`
- modify `.po` file
- ```python manage.py compilemessages```
- ```python manage.py compilejsi18n```
2. Update styles (using SASS)
- Change .css/.scss files in `resources` folder
- ```./make_style && python manage.py collectstatic```
- Sometimes you need to `Ctrl + F5` to see the new user interface in browser.
## Screenshots
### Leaderboard
Leaderboard with information about contest rating, performance points and real name of all users.
![](https://i.imgur.com/ampxHXM.png)
### Admin dashboard
Admin dashboard helps you easily managing problems, users, contests and blog posts.
![](https://i.imgur.com/iccr3mh.png)
### Statement editor
You can write the problems' statement in Markdown with LaTeX figures and formulas supported.
![](https://i.imgur.com/CQVC754.png)
### Chat
Users can communicate with each other and can see who's online.
![](https://i.imgur.com/y9SGCgl.png)