list-imports.js

import { registerHooks } from 'node:module'
import fs from 'node:fs'

const urls = []
registerHooks({
  load(url, context, nextLoad) {
    if (!url.startsWith('file://')) {
      return nextLoad(url, context)
    }
    urls.push(url)
    return nextLoad(url, context)
  }
})

console.time('load')
await import('./test2.js')
console.timeEnd('load')

const sizes = new Map()
for (const url of urls) {
  const stats = fs.statSync(url.replace('file://', ''))
  sizes.set(url, stats.size)
}

const entries = [...sizes.entries()].sort((a, b) => {
  if (a[1] < b[1]) return -1
  if (a[1] > b[1]) return 1
  return 0
})

let totalFiles = 0
let totalSize = 0
for (const [url, size] of entries) {
  // if (url.includes('node_modules')) continue
  console.log(size.toLocaleString(), url)
  totalSize += size
  totalFiles++
}
console.log(`Total files: ${totalFiles.toLocaleString()}`)
console.log(`Total size: ${totalSize.toLocaleString()}`)