Add support for vocab.config.cjs

[rstacruz]

Context

Vocab currently supports vocab.config.js.

However, when using Vocab in ESM projects, Vocab may throw an error like this:

Error [ERR_REQUIRE_ESM]: require() of ES Module /[project]/vocab.config.js from /[project]/node_modules/@vocab/core/dist/vocab-core.cjs.dev.js not supported.

[1] vocab.config.js is treated as an ES module file as it is a .js file whose nearest parent package.json contains “type”: “module” which declares all .js files in that package scope as ES modules.

Vocab tries to do require('./path/to/vocab.config.js'), which shouldn't be possible inside an ESM workspace. vocab.config.js is assumed to be an ESM module, when it's actually a CJS module.

Solution

This adds support for vocab.config.cjs.

Caveats

Unfortunately, support for vocab.config.mjs won't be straight-forward.

A workaround is available as well: vocab compile --config vocab.config.cjs

[changeset-bot]

🦋 Changeset detected

Latest commit: 61880a8

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 6 packages

Name	Type
@vocab/core	Minor
@vocab/cli	Patch
@vocab/phrase	Patch
@vocab/react	Patch
@vocab/types	Patch
@vocab/webpack	Patch

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[mrm007]

LGTM, but would appreciate a fixture or a unit test with a .cjs config.

There's also undefined unspecified behaviour (to consumers) when both a vocab.config.js and vocab.config.cjs are present. We could do better, but I'm not against merging this PR as-is.

[askoufis]

LGTM, but would appreciate a fixture or a unit test with a .cjs config.

There's also undefined behaviour when both a vocab.config.js and vocab.config.cjs are present. We could do better, but I'm not against merging this PR as-is.

findUp will return the first one it finds, based on the order in the array provided to it (ref). So it's defined, but we could do better by warning when 2 config files are found.

[mrm007]

So it's defined, but we could do better by warning when 2 config files are found.

I meant it's undefined for consumers of Vocab. find-up is an implementation detail.