[Bug]: Upgrading from 5 to 6: illegal operation on a directory

[aminya]

Describe the bug

I upgraded from purgecss 5 to 6, but I have started to get these errors. Not sure where they come from. Seems to be related to glob.

node:internal/process/promises:391
    triggerUncaughtException(err, true /* fromPromise */);
    ^

[Error: EISDIR: illegal operation on a directory, read] {
  errno: -21,
  code: 'EISDIR',
  syscall: 'read'
}

Node.js v22.6.0

To Reproduce

The purgecss.config.ts

import type { UserDefinedOptions } from "purgecss"

export const purgeCSSConfig: UserDefinedOptions = {
  content: [".solid/**/*.{js,html,json,svg}", "dist/**/*.{js,html,json,svg}", "**/!(bundle-visualizer.html)"],
  css: ["dist/**/*.css", ".solid/**/*.css"],
  // this extractor works with Tailwind's class names (e.g. `bg-red-500`, `dark:bg-red-500`, `px-2.5`, `.max-w-[800px]`, `bg-[#FFFFFF]`)
  defaultExtractor: (content) => content.match(/[\w#%./:[\]-]+(?<!:)/g) ?? [],
}

The script

import { PurgeCSS } from "purgecss"
import { purgeCSSConfig } from "./purgecss.config.js"
import { writeFileWithStats } from "./lib.js"

async function main() {
  if (process.env.NODE_ENV !== "production") {
    return
  }

  const purgeCssResult = await new PurgeCSS().purge(purgeCSSConfig)

  await Promise.all([
    ...purgeCssResult.map(async ({ css, file }) => {
      if (file === undefined) {
        return
      }
      await writeFileWithStats(file, file, css)
    }),
  ])
}
await main()

Environment

Node 22, Linux

Add any other context about the problem here

No response

Code of Conduct

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[aminya]

I made a pull request in #1308 and verified that the issue is now fixed