Fix format assumption when resolving module dependencies (#10878)

* fix assumption when resolving dependencies

When resolving dependencies given a path, we are only interested
relative files from the current file. We are not interested in the
dependencies that are listed in your `package.json` and thus in your
`node_modules` folder.

We made the assumption that your imports have at least 3 characters.
This sort of makes sense because there will be a `.`, then the OS
separator like `/` and than a file name. E.g.: `./a` is the minimal
amount of characters.

This makes sense for `import` statements, but in the case of `require`,
it is totally valid to write `require('.')`. This will require the
current `index.{js,ts,mjs,cjs,...}` in the current directory.

Before this change, having a `require('.')` wouldn't crash, but the
dependency would not be marked as a module dependencies and therefore we
won't listen for file changes for that dependency.

* update changelog

CHANGELOG.md

@@ -30,6 +30,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Sort class lists deterministically for Prettier plugin ([#10672](https://github.com/tailwindlabs/tailwindcss/pull/10672))
 - Ensure CLI builds have a non-zero exit code on failure ([#10703](https://github.com/tailwindlabs/tailwindcss/pull/10703))
 - Ensure module dependencies for value `null`, is an empty `Set` ([#10877](https://github.com/tailwindlabs/tailwindcss/pull/10877))
+- Fix format assumption when resolving module dependencies ([#10878](https://github.com/tailwindlabs/tailwindcss/pull/10878))
 
 ### Changed
 

src/lib/getModuleDependencies.js

@@ -62,7 +62,7 @@ function* _getModuleDependencies(filename, base, seen, ext = path.extname(filena
   for (let match of [
     ...contents.matchAll(/import[\s\S]*?['"](.{3,}?)['"]/gi),
     ...contents.matchAll(/import[\s\S]*from[\s\S]*?['"](.{3,}?)['"]/gi),
-    ...contents.matchAll(/require\(['"`](.{3,})['"`]\)/gi),
+    ...contents.matchAll(/require\(['"`](.+)['"`]\)/gi),
   ]) {
     // Bail out if it's not a relative file
     if (!match[1].startsWith('.')) continue