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inline-coverage-styles

v0.1.1

Published

Inline CSS for code coverage report

Downloads

3

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Links

Maintainers

stephane.bachelierstephane.bachelier

Keywords

Readme

Inline coverage styles

Build Status codecov

Description

Inline CSS stylesheets into HTML files.

The goal of this project is to fix an issue on VSTS or Azure devops, where code coverage report assets can't be loaded, as the reports are loaded in a sandboxed iframe.

See :

Nota Bene

This project can be used not only for inlining linked stylesheets in HTML code coverage reports, but also for any folder with HTML files.

Installation

Locally :

  • npm : npm i inline-coverage-styles
  • yarn : yarn add inline-coverage-styles

Or globally :

  • npm : npm i -g inline-coverage-styles
  • yarn : yarn global add inline-coverage-styles

Usage

const ics = require('inline-coverage-styles')

ics({ baseDir: 'coverage' })

Options

baseDir: string (required)

The absolute path to the coverage report directory. A relative path might work but it's not tested.

css: string (optional)

A string with a bunch of css rules to inject in a <style> tag. Injected before the <head> closing tag to avoid any cascade issue.

Examples

Two examples are provided in this repository:

To run these tests :

  • clone this repository
  • yarn install
  • yarn run test && node ./examples/inline_coverage.js
  • or yarn run test && node ./examples/inline_coverage_with_extra_css.js

Roadmap

  • [ ] Add CLI
  • [ ] Increase code coverage
  • [ ] test support for relative path

Inspiration & motivation

These project is directly inspired from vsts-coverage-styles. I've decided to build this project :

  • vsts-coverage-styles is difficult to mock in my custom build processes,
  • vsts-coverage-styles does not have tests,
  • I wanted to have a solution with streams instead of having the whole file loaded in memory, to avoid memory issues. Some coverage folders may have a log of HTML reports files.
  • There is no caching of linked CSS files in memory contrary to vsts-coverage-styles. The linked stylesheets are first minified and then only the minified version will be loaded from filesystem using stream.