Function buildStart

packages/vite/src/node/plugins/css.ts:318–332

()

    name: 'vite:css',

    buildStart() {
      // Ensure a new cache for every build (i.e. rebuilding in watch mode)
      moduleCache = new Map<string, Record<string, string>>()
      cssModulesCache.set(config, moduleCache)

      removedPureCssFilesCache.set(config, new Map<string, RenderedChunk>())

      preprocessorWorkerController = createPreprocessorWorkerController(
        normalizeMaxWorkers(config.css.preprocessorMaxWorkers),
      )
      preprocessorWorkerControllerCache.set(
        config,
        preprocessorWorkerController,
      )
    },

    async buildEnd() {
      await preprocessorWorkerController?.close()