Function prepareOutDirPlugin

packages/vite/src/node/plugins/prepareOutDir.ts:11–45

()

import { withTrailingSlash } from '../../shared/utils'

export function prepareOutDirPlugin(): Plugin {
  const rendered = new Set<Environment>()
  return {
    name: 'vite:prepare-out-dir',
    watchChange() {
      rendered.delete(this.environment)
    },
    renderStart: {
      order: 'pre',
      handler() {
        if (rendered.has(this.environment)) {
          return
        }

        const { config } = this.environment
        if (config.build.write) {
          rendered.add(this.environment)
          const { root, build: options } = config
          const resolvedOutDirs = getResolvedOutDirs(
            root,
            options.outDir,
            options.rolldownOptions.output,
          )
          const emptyOutDir = resolveEmptyOutDir(
            options.emptyOutDir,
            root,
            resolvedOutDirs,
            this.environment.logger,
          )
          prepareOutDir(resolvedOutDirs, emptyOutDir, this.environment)
        }
      },
    },
  }
}

function prepareOutDir(
  outDirs: Set<string>,