refactor!: replace ansi-colors with smaller and faster ansis

[webdiscus]

PR Checklist

• Addresses an existing open issue: fixes #000
• That issue was marked as status: accepting prs
• Steps in CONTRIBUTING.md were taken

Overview

This PR replaces the outdated ansi-colors (last update 3 years ago) package with smaller and faster ansis.

Benefits of ansis

• Supports both ESM and CommonJS
• Supports Bun and Deno runtimes
• Supports TypeScript
• Ansis is compatible with ansi-colors API, plus supports named import: import { red, yellow } from 'ansis'
• Installed package size only 10 kB (ansi-colors 26 kB), see Compare the size of most popular packages
• 7-10x faster than ansi-colors, see Benchmarks
• Using named import your code will be clean and more readable:

  - console.error(ansi.red(`Error: ${result.error.message}`));
  + console.error(red`Error: ${result.error.message}`); // <= shorter and more readable

• Supports ANSI 256 colors and TrueColor with Fallback: TrueColor → 256 colors → 16 colors → no colors
• Supports environment variables NO_COLOR FORCE_COLOR and flags --no-color --color
• Both Ansis and Picocolors (does't support named import) are recommended by the ES Tooling community as smallest and fastest packages.

Packages that already use ansis

• nestjs/nest,
• sequelize/core
• facebook/stylex
• salesforcecli/cli
• grafana/faro-javascript-bundler-plugins
• and thousands others

Test

This PR does not require unit/integration tests.

But you can do the manual test.

Install the fork

git clone https://github.com/webdiscus/mocha.git
cd mocha
git checkout switch-to-ansis
npm i
npm run build

Test changed files

Cmd:

node ./bin/mocha.js -h

In console output will be displayed color text:

Cmd:

node ./bin/mocha.js -h --no-color

In console output will be displayed b&w text:

Cmd:

node ./bin/mocha.js -R

In console output will be displayed red text: