fix(rspack): prevent vfs concurrency issues for parallel builds (#510)

Author: elbywan

src/rspack/utils.ts

@@ -17,15 +17,19 @@ export function isVirtualModuleId(encoded: string, plugin: ResolvedUnpluginOptio
 
 export class FakeVirtualModulesPlugin {
  name = 'FakeVirtualModulesPlugin'
+ static counter = 0
  constructor(private plugin: ResolvedUnpluginOptions) {}
 
  apply(compiler: Compiler): void {
+ FakeVirtualModulesPlugin.counter++
  const dir = this.plugin.__virtualModulePrefix
  if (!fs.existsSync(dir)) {
  fs.mkdirSync(dir, { recursive: true })
  }
  compiler.hooks.shutdown.tap(this.name, () => {
- fs.rmSync(dir, { recursive: true, force: true })
+ if (--FakeVirtualModulesPlugin.counter === 0) {
+ fs.rmSync(dir, { recursive: true, force: true })
+ }
  })
  }