esbuild 在没有安装 parcel 的情况下失败

Question

一个使用esbuild的项目失败如下...

node_modules/htmlparser2/lib/Parser.js:133:36: error: Could not resolve "events" (set platform to "node" when building for node)
require("inherits")(Parser, require("events").EventEmitter);
                                    ~~~~~~~~
1 error
Error: Build failed with 1 error:
node_modules/htmlparser2/lib/Parser.js:133:36: error: Could not resolve "events" (set platform to "node" when building for node)
    at failureErrorWithLog (/Volumes/DUMBLEDORE1/Users/fficnar/Projects/Shared Projects/mablung-virtual-pug/node_modules/esbuild/lib/main.js:640:15)
    at /Volumes/DUMBLEDORE1/Users/fficnar/Projects/Shared Projects/mablung-virtual-pug/node_modules/esbuild/lib/main.js:504:31
    at handleIncomingPacket (/Volumes/DUMBLEDORE1/Users/fficnar/Projects/Shared Projects/mablung-virtual-pug/node_modules/esbuild/lib/main.js:486:9)
    at Socket.readFromStdout (/Volumes/DUMBLEDORE1/Users/fficnar/Projects/Shared Projects/mablung-virtual-pug/node_modules/esbuild/lib/main.js:429:7)
    at Socket.emit (events.js:314:20)
    at addChunk (_stream_readable.js:303:12)
    at readableAddChunk (_stream_readable.js:279:9)
    at Socket.Readable.push (_stream_readable.js:218:10)
    at Pipe.onStreamRead (internal/stream_base_commons.js:188:23) {
  errors: [
    {
      location: [Object],
      text: 'Could not resolve "events" (set platform to "node" when building for node)'
    }
  ],
  warnings: []
}

...但是如果安装了包裹...

npm install --save-dev parcel-bundler

……成功了。

测试是...

import '@virtualpatterns/mablung-source-map-support/install'
import _Bundler from 'esbuild'
import Path from 'path'

const { 'build': Bundle } = _Bundler
const FilePath = __filePath
const Require = __require

async function main() {

  try {

    await Bundle({
      'entryPoints': [ Require.resolve('../library/utility.js') ],
      'outfile': `process/esbuild${Path.extname(FilePath)}`,
      'minify': false,
      'bundle': true
    })
    
  } catch (error) {
    console.error(error)
  }

}

main()

...但我也尝试过运行以下来自命令行的相同错误（无堆栈跟踪）...

esbuild distributable-esmodule/library/utility.js --bundle --outdir=process/esbuild --sourcemap --platform=browser --log-level=info --strict
node_modules/htmlparser2/lib/Parser.js:133:36: error: Could not resolve "events" (set platform to "node" when building for node)
require("inherits")(Parser, require("events").EventEmitter);
                                    ~~~~~~~~
1 error

冒犯 require("events") 来自 html-to-vdom。我的 utility.js 很小，包含以下导入的 ...

import _ConvertToVirtualNode from 'html-to-vdom'
import CreateVirtualNode from 'virtual-dom/h.js'
import VirtualNode from 'virtual-dom/vnode/vnode.js'
import VirtualText from 'virtual-dom/vnode/vtext.js'

我正在使用 esbuild v0.7.19。帮助。我还应该提供什么？

Answer 1

由于错误消息显示 set platform to "node" when building for node，我假设您没有这样做，这意味着您是针对浏览器而非节点进行捆绑。 events 包内置于节点中，但未内置于浏览器中。

看起来 parcel-bundler 取决于 node-libs-browser，而 node-libs-browser 又取决于 crypto-browserify，而 crypto-browserify 又取决于 events。这解释了为什么安装 Parcel 会修复此错误。如果您的项目需要依赖于 events 包 (https://www.npmjs.com/package/events)，您应该自己安装它，以便它成为您项目的一部分：

npm install events

esbuild 在没有安装 parcel 的情况下失败

esbuild fails without parcel installed

esbuild