Function cleanupDepsCacheStaleDirs

packages/vite/src/node/optimizer/index.ts:1422–1446

(
  config: ResolvedConfig,
)

const MAX_TEMP_DIR_AGE_MS = 24 * 60 * 60 * 1000
export async function cleanupDepsCacheStaleDirs(
  config: ResolvedConfig,
): Promise<void> {
  try {
    const cacheDir = path.resolve(config.cacheDir)
    if (fs.existsSync(cacheDir)) {
      const dirents = await fsp.readdir(cacheDir, { withFileTypes: true })
      for (const dirent of dirents) {
        if (dirent.isDirectory() && dirent.name.includes('_temp_')) {
          const tempDirPath = path.resolve(config.cacheDir, dirent.name)
          const stats = await fsp.stat(tempDirPath).catch(() => null)
          if (
            stats?.mtime &&
            Date.now() - stats.mtime.getTime() > MAX_TEMP_DIR_AGE_MS
          ) {
            debug?.(`removing stale cache temp dir ${tempDirPath}`)
            await fsp.rm(tempDirPath, { recursive: true, force: true })
          }
        }
      }
    }
  } catch (err) {
    config.logger.error(err)
  }
}

// We found issues with renaming folders in some systems. This is a custom
// implementation for the optimizer. It isn't intended to be a general utility