Eleventy 3.0.0 is using @11ty/dependency-tree

[RogierKonings]

Operating system

Windows 10

Eleventy

3.0.0

Describe the bug

There seem to be packages that still depend on CommonJS packages

Reproduction steps

1. Install 11ty 3.0.0 version
2. Convert project to use ESM module resolution
3. Run an npx @11ty/eleventy --watch
4. See the following warning

(node:12456) ExperimentalWarning: CommonJS module C:\…\node_modules\@11ty\dependency-tree\main.js is loading ES Module C:\…\site\.eleventy.js using require(). Support for loading ES Module in require() is an experimental feature and might change at any time

Expected behavior

I expect for 11ty 3.0.0 to use the ESM version: dependency-tree-esm

Reproduction URL

No response

Screenshots

No response

[zachleat]

We use both @11ty/dependency-tree and @11ty/dependency-tree-esm internally but that’s unlikely to be the root of your error. Are you missing "type": "module" in your package.json?

[smorimoto]

I think the build works, but the watch didn't. Anyway, I hope you will release 3.0.1-alpha.1 to npm.

[zachleat]

We have some CommonJS/ESM detection in Eleventy (which might be buggy?)—but I can’t determine without an answer to whether or not "type": "module" is in your package.json file

[RogierKonings]

@zachleat "type": "module" is in my package.json. I think @smorimoto is onto something. I experience the error only on a --watch

The issue arise with node v22.10.0 and lower. In v23.3.0 no issues