This module contains some nice tools to organize git hooks for NodeJs projects.

git, hooks, commitlint, husky, lint-staged, changelog, eslint, prettier
npm install @leanup/git-hooks@1.1.16


Make things pure ... to become lean.

license lernajs prettier

leanup js

The @leanup ecosystem stands for a lightweight and pure way for application development in JavaScript/TypeScript.


  • Learnability
  • Controllability
  • Universality
  • Flexibility
  • Scalability
  • Durability
  • Transparency

What makes the difference

Stop the transitive knowledge.

We use the minimal configuration and build no overhead stuff on top of the popular tools and make every native command transparent.


  • convention over configuration
  • pure commands under the hood
  • don't repeat yourself
  • following the generic instead of the influenced way
  • keep the dependencies always up to date


The arguments for and against this concept are documented here:


  • select only one pure and popular tool for each use case (e.g. bundling, unit-test)
  • there are extensible configuration files for each tool
  • due to the flat dependencies we can always stay up to date
  • the CLI bundles all the necessary tools in a portable/scalable way
  • the risk to get vulnerabilites in dependencies is lower
  • leanup's own code is kept to a minimum


  • please give feedback
  • please show us your perspective


There are some working examples:


Tool/Technology Description Status Note
Babel Transpiler ✔️ ready
Webpack Bundler ✔️ ready
TypeScript Language ✔️ ready
Mocha Unit-Test-Runner ✔️ ready
Chai Assertion ✔️ ready
Sinon Mocking ✔️ ready
NYC Code-Coverage ✔️ ready
ESLint Code-Checker ✔️ ready
Nightwatch.js E2E-Test-Runner ✔️ ready
Allsure Report ✔️ ready
Cucumber BDD ✔️ ready
robotframework BDD will be evaluated
Storybook Documentation in progress
GraphQL API ✔️ ready
Workbox PWA ✔️ ready
Lerna Mono-Repo ✔️ ready
Ant-Design Design-System ✔️ proved
Material Design-System ✔️ proved
Bootstrap Design-System ✔️ proved
Tailwindcss Design-System ✔️ proved
Less CSS ✔️ ready
Sass CSS ✔️ ready
Webhint Webhint ✔️ moved ***
TestCafe E2E-Test-Runner will be evaluated ****
TSLint Code-Checker removed **
Cypress E2E-Test-Runner excluded *

* Arguments agains Cypress:

  • reinvent wheel
    • detect css selectors
    • BDD test syntax
    • principals
  • large tooling
  • a lot of binaries
  • many dependencies
  • ci integration vs selenium hub

It is difficult to keep focus with Cypress as it is more a nice tool than an effective tool. It is expected that a lot of time will be invested to justify the requirements of a project.

** TSLint is deprecated.

*** Webhint is not practical for the development of components, since component tags often have no relation to standard HTML. In addition, the webhint package alone is over 100 MB in size. I have good by using a IDE webhint plugin, like VSCode webhint.

**** TestCafe The idea that defined TestCafe architecture was that you don't really need an external driver to run end-to-end tests in the browser. That's interesting.

Ecosystem structure

Vanilla Java-/TypeScript are supported by default. That means for example custom elements and any plain Java-/TypeScript code.


Vanilla Java-/TypeScript are supported by default. That means for example custom elements and any plain Java-/TypeScript code.

The selection of the following frameworks depends in parts on the following references:

Currently the following framework extensions are available:


A separate package contains some nice but not required addons for webpack.


There a separate packages for important application features.