command-line-usage: Deno runtime not supported

Due to https://github.com/denoland/deno/issues/13321, the library fails with

error: Uncaught TypeError: chalk.underline.bold is not a function
    at ContentSection.header (file:///Users/ulken/Library/Caches/deno/npm/registry.npmjs.org/command-line-usage/6.1.3/lib/section.js:23:32)

The version of chalk used is really old. Please consider upgrading to at least 4.X, where the issue above is fixed. If you want to take the step to ESM, you might want to take it to 5.X+ even.

If you’re up for it, let me know if you want me to help out in any way.

PS. Even if you have no intention of supporting Deno, I think it would still be worth to upgrade Chalk to a more modern (and safer) version.

About this issue

Original URL
State: closed
Created a year ago
Comments: 19 (9 by maintainers)

Commits related to this issue

Upgrade chalk to version v5 to enable support for Deno #40 — committed to 75lb/command-line-usage by 75lb a year ago

Most upvoted comments

Hey, look at that!

For unknown reason, the formatting is not displayed in Warp, but that is on them (works in Hyper and Terminal.app)…

https://app.warp.dev/block/nvpi0MT2iXS45OmFaVQyjT

Is it erroneously thinking it’s piped and strips the formatting? Idk. Don’t bother.

ulken on Feb 14, 2023

Install Deno
mkdir cli-usage-deno && cd $_
deno init
Replace contents of main.ts with

import cliUsage from "npm:command-line-usage";

if (import.meta.main) {
  console.log(cliUsage([
    { 
      header: "Deno CLI usage", 
      content: "Best thing ever"
    }
  ]));
}

deno run --allow-read --allow-env main.ts (could also pass --allow-all if you prefer)

Let me know if you get stuck on something.

ulken on Feb 13, 2023