CS5421 Project

View the project Demo here: https://drive.google.com/file/d/1cJETfMMs-t70Cns9usy-3GFq2SrBfV9C/view

Datalog-compiler

Structure

├── requirements.txt (Contains the dependencies)
├── src (Contains the main code)
│   ├── backend (Contains the logic for the backend of the compiler)
│   │   ├── interpreter.py
│   │   └── sql_statement.py
│   ├── common (Contains the common items shared between the front end and the backend)
│   │   └── node_names.py
│   ├── datalog.txt (Some sample datalog queries can be found here. You can also pass in the commands from here)
│   ├── frontend (Contains the logic for the frontend of the compiler)
│   │   ├── lexer.py
│   │   ├── parser.out
│   │   ├── parser.py
│   │   └── parsetab.py
│   └── main.py
└── tests (Contains the unit test)
    ├── frontend
    │   └── test_lexer.py (Contains some unit tests for the lexer)
    └── test_main.py (Contains sample queries you can refer to)

Running the datalog-compiler as standalone application

Application can be run from the datalog-compiler using the following command:

python3 src/main.py

You can choose to run the queries as a

1. REPL
2. from the file (default from datalog.txt)

Select the options as you want

Also, sample queries that has been tested with can be found in datalog.txt and in the unittests test_main.py

Running the datalog-compiler as web services

Starting the frontend webservice

CD to frontend directory cd frontend

Check if npm is intalled. I just download it from https://nodejs.org/en/download npm -v

To install all react dependencies, cd to directory containing package.json. npm install react-scripts --save-dev

To start the frontend, open another terminal. npm start

Starting the backend webservice

To start the backend, open a terminal. python3 app.py

Dependencies:

Dependencies can be installed using the following command:

python3 -m pip install -r requirements.txt

Unit tests:

Unit test can be run inside the datalog-compiler directory using the following command:

python3 -m unittest