dejavu

Purpose

This fork attempts to:

• [:heavy_check_mark:] Fix bugs (fixes critical numpy one).
• [:heavy_check_mark:] Use SQLAlchemy to support PostgreSQL, SQLite3 DBs as well.
• [:heavy_check_mark:] Use Pipenv to allow db credentials via .env file
• [:heavy_check_mark:] Support both Python3 and Python2.
• [WIP] Use the logging module so as to not litter any user's application with prints.
• [:heavy_check_mark:] Reformat code using YAPF (Facebook)

Usage

1. Install directly from this repo:

pip install -e git+https://github.com/bcollazo/dejavu@v1.2#egg=PyDejavu

2. Import and use:

from dejavu import Dejavu
from dejavu.recognize import FileRecognizer

djv = Dejavu(dburl='sqlite://')
djv.fingerprint_directory('~/Music')
song = djv.recognize(FileRecognizer, 'mp3/Dura--Daddy-Yankee.mp3')
print(song)

3. Can also be used as a CLI tool:

export DATABASE_URL=mysql+mysqlconnector://bryan:password@localhost/dejavu
python dejavu.py --fingerprint ~/Music mp3 --limit 30
python dejavu.py --recognize mic 10
python dejavu.py --recognize file sometrack.mp3

You can keep the database url saved in an .env file and use pipenv. As well as specify it via the --dburl command line argument.

NOTE Some incompatibility around byte encoding is present with this connector pair for some database versions (e.g. MariaDb). Consider using mysql+pymysql instead of mysql+mysqlconnector with a simple fingerprint to check for this error.

Migrating from worldveil/dejavu

If you already have a live database that used to follow worldveil/dejavu database structure, you'll have to migrate your database by renaming:

• song_id to id
• song_name to name

in the songs table.

Testing

We have included a docker-compose.yml and Dockerfile that allows 'headless' testing.

Build container

You can choose the Python version you wish to build with by setting:

export PYTHON_VERION=3.6.6

Or update the Pipfile with the version you want and use:

export PYTHON_VERSION=$(cat Pipfile | awk '/python_version/ {print $3}' | tr -d '"')

Then run the build:

docker-compose build

This creates a dejavu container.

Test with docker-compose

Once the container is built, you can run your tests:

docker-compose run dejavu pipenv run run_tests

This will run the script called run_tests in the Pipfile

You can get a shell with:

docker-compose run dejavu /bin/bash

You can then run tests inside the container with either pipenv run run_tests or bash test_dejavu.sh

You can change the default command the container/service will run by changing the CMD in the Dockerfile or command in the docker-compose.yml file. Currently they are set to tail -f /dev/null which basically keeps a process running in the container without doing anything.

You may want to set these to pipenv run run_tests for testing. See Docker or docker-compose