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Last pushed: 5 months ago
Short Description
A command-line app for the Belugas feature detection analysis platform
Full Description

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<img src="belugas.png" height="300px" alt="Belugas" />


belugas is a command line interface for the Project Feature detection analysis platform. It allows you to run feature detector engines on your local machine inside of Docker containers.

Belugas general architecture was inspired by Code Climate CLI.

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Table of contents


belugas is part of the Whales ecosystem: A set of tools to automatically dockerize your applications.

Belugas Engines

Belugas has a micro-service oriented architecture conformed by the following engines:

Each of these engines is focus to detect multiple features on a project based on a code static analysis.

What is a feature?

A feature is an application attribute detected during the static analysis. This analysis is the act of derivating data from code such as programming language, frameworks, service dependencies and so on.

A feature has the following format:

  "description":"The application uses Ruby code",
  "categories":["Gemfile","Gemfile.lock","Rakefile", ...],


  • type: Will always be a feature.
  • name: This is the name of the language, framework or database that is being used in the application.
  • version: The detected version of the feature. This one is optional
  • description: A string explaining the feature that was detected.
  • content: A markdown snippet describing the feature, including deeper explanations and links to other resources. This one is optional
  • categories: Features are associated with one or more categories: Framework, Language, Database, Library & Service.
  • cue_locations: An array of Location objects representing the places in the source code that provide evidence of the detected feature. This one is optional
  • engines: An array of engine names that detected the feature, or refined the data detected by the previous engines.



The Belugas CLI is distributed and run as a Docker image, so you only need to have Docker installed and running on your machine. The engines that perform the actual analyses are also Docker images.


Fire up your terminal and run

docker pull gueils/belugas:latest

And that's it!


Here's where the magic begins, first of all in your terminal go to the project directory you want to analyze:

cd code/path_to_project/

And then just execute the following command:

docker run \
  --interactive --tty --rm \
  --env BELUGAS_CODE="$PWD" \
  --volume "$PWD":/code \
  --volume /var/run/docker.sock:/var/run/docker.sock \
  --volume /tmp/fdet:/tmp/fdet \
  gueils/belugas:latest analyze . -f json

And voilá! The terminal will stream a json output for each of the features detected


Everyone is freely to collaborate, just make sure you follow our code of conduct. Thank you contributors!

Create an Issue

Find a bug and don't know how to fix it? Have trouble following the documentation or have a question about the project? Then by all means, please create an issue.

Just please make sure you check existing issues to see if what you're running into has been addressed already.

Submit a Pull Request

That's great! Just follow this steps:

  1. Create a separate branch for your edits
  2. Make sure your changes doesn't break the project by running your changes against current specs. We love tests! so it'll be even better if you create new ones when needed
  3. Open your pull request against master

Once you've created a pull request, mainteners will chime in to review your proposed changes and to merged it if everything is right :tada:

I want to contribute but don't know where to start

That's great also! We already have some open issues for you to dive in.



Belugas is maintained by Icalia Labs

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