Parcel v2 generates several JS files which cannot be ran by node

[declanelcocks]

In the past I was using Parcel v1 along with parcel-plugin-run-server to build a dist output of a TypeScript Node.js backend and run it. The options were quite simple:

const options = {
  outDir: './dist',
  outFile: 'main.js',
  publicUrl: './',
  watch: true,
  cache: true,
  cacheDir: '.cache',
  contentHash: false,
  minify: false,
  scopeHoist: false,
  target: 'node',
  bundleNodeModules: false,
  logLevel: 3,
  sourceMaps: true,
  detailedReport: false,
  autoInstall: true,
};

This would generate some static files and one, big dist/main.js file that the plugin could run using node dist/main.js. I've tried to copy these options across to Parcel v2 with:

{
    entries: entryFiles,
    shouldDisableCache: false,
    shouldContentHash: false,
    shouldAutoInstall: true,
    mode: 'development',
    logLevel: 'error',
    targets: {
      default: {
        context: 'node',
        publicUrl: './',
        distDir: './dist',
        distEntry: 'main.js',
        optimize: false,
        scopeHoist: false,
        includeNodeModules: false,
        sourceMap: true,
      },
    },
  }

This will build dist/main.js but it will also build several other files like main.5c9552c8.js. This itself is fine, I guess it's code splitting the bundles as the docs explain, but when running node dist/main.js it now results in this error:

node:internal/modules/cjs/loader:1026
  const err = new Error(message);
              ^

Error: Cannot find module '9vinu'
Require stack:
- /Users/<REPO_PATH>/dist/main.js
    at Function.Module._resolveFilename (node:internal/modules/cjs/loader:1026:15)
    at Function.Module._load (node:internal/modules/cjs/loader:871:27)
    at Module.require (node:internal/modules/cjs/loader:1098:19)
    at newRequire (/Users/<REPO_PATH>/dist/main.js:58:18)
    at newRequire (/Users/<REPO_PATH>/dist/main.b8135af0.js:53:18)
    at newRequire (/Users/<REPO_PATH>/dist/main.b8135af0.js:45:18)
    at localRequire (/Users/<REPO_PATH>/dist/main.b8135af0.js:84:35)
    at Object.aE43U.a48566ca5e2ae079 (/Users/<REPO_PATH>/dist/main.b8135af0.js:151:20)
    at newRequire (/Users/<REPO_PATH>/dist/main.b8135af0.js:71:24)
    at /Users/<REPO_PATH>/dist/main.b8135af0.js:122:5 {
  code: 'MODULE_NOT_FOUND',
  requireStack: [ '/Users/<REPO_PATH>/dist/main.js' ]
}

Can I configure Parcel to output a single JS file? Or is there something else I'm missing?

Thanks 🙏

(Seems similar to #5683)

[mischnic]

Try adding outputFormat: "commonjs" to the default: {..} object, not sure if that is already what's being used though.

[declanelcocks]

@mischnic Yeah same error unfortunately. I had the same thought myself initially so tried out the various output formats. I believe commonjs is the default option here if you don't define it.