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👁 Voight-Kampff

This repository contains a small Python package, voight-kampff, which provides a command line application, vk, which can be used to run the following linters (including some spell checkers):

This can be useful to check your entire repository before pushing the code to the remote.

In case you are wondering about the name, it was inspired by a device used to determine whether an individual is a replicant in the 1982 movie, Blade Runner.

Prerequisites

Before you can use Voight-Kampff to run the linters, they need be installed. Some of the linters are written in Python and can be installed through pip. These are specified as dependencies of Voight-Kampff and will be installed automatically when you install the voight-kampff package. However, a few of the linters are Node.js-based and need to be installed using npm. Finally for the spell checking feature in Pylint to work, you need to have Enchant installed. That can be done through Homebrew or apt depending on your OS. Installation instructions for all dependencies on macOS as well as Debian, Ubuntu and similar are provided below.

Installing prerequisites on macOS

This section briefly describes how you can install the prerequisites on macOS. These instructions assume you already have Homebrew installed.

First you should install the prerequisites that are installed through Homebrew as follows:

brew install enchant
brew install node

The above lines will install Enchant and Node.js. Now that you have Node.js installed, you can install the linters that are based on Node.js:

npm install --global cspell
npm install --global markdownlint-cli2
npm install --global pyright

Installing prerequisites on Linux - Debian / Ubuntu

First you should install the prerequisites that are installed through apt as follows:

sudo apt install enchant-2
sudo apt install npm

The above lines will install Enchant and Node.js. Now that you have Node.js installed, you can install the linters that are based on Node.js:

sudo npm install --global cspell
sudo npm install --global markdownlint-cli2
sudo npm install --global pyright

Installation

Assuming you have the prerequisites installed as described above, you can install Voight-Kampff as follows:

pip3 install voight-kampff

Usage

To run all of the above linters on the current directory, simply run:

vk

If you want to run only one or a few specific linters, say Black and Pylint, you can do that as follows:

vk black pylint

By default, Voight-Kampff will keep running the subsequent linters if the current one fails the check. If you prefer that Voight-Kampff stops as soon as any linter fails, you can specify the --break-on-error flag -- or the short version, -B:

vk -B