Files missing in firebase@9.15.0

[jwalton]

Describe your environment

• Operating System version: MacOS 13.0
• Browser version: Any
• Firebase SDK version: 9.15.0
• Firebase Product: auth, possibly others

Describe the problem

Steps to reproduce:

$ npm install firebase@9.14.0
$ ls node_modules/firebase/auth/dist
analytics        auth             firestore        index.cjs.js.map index.mjs        messaging        storage
app              compat           functions        index.esm.js     index.mjs.map    performance
app-check        database         index.cjs.js     index.esm.js.map installations    remote-config

$ npm install firebase@9.15.0
$ ls node_modules/firebase/auth/dist
analytics        auth             esm              index.cjs.js     index.mjs.map    performance
app              compat           firestore        index.cjs.js.map installations    remote-config
app-check        database         functions        index.mjs        messaging        storage

Note that index.esm.js is missing, however this file is still referenced in node_modules/firebase/auth/package.json:

$ cat node_modules/firebase/auth/package.json
{
  "name": "firebase/auth",
  "main": "dist/index.cjs.js",
  "browser": "dist/esm/index.esm.js",
  "module": "dist/esm/index.esm.js",
  "typings": "dist/auth/index.d.ts"
}

As a result, if you for example import { getAuth } from 'firebase/auth'; and you use an ESM-based bundler like vite, then the build will work in 9.14.0, but fail in 9.15.0.

[hsubox76]

The path is in package.json is dist/esm/index.esm.js, note the esm subdirectory, which I do see in your ls results. Does the file exist in that subdirectory?

If so, and the build is still failing, can you share the error message and a minimal repro of the project it won't build in?

[hsubox76]

Note to self, possibly caused by #6826

[jwalton]

My humble appologies. I'm afraid I'm unable to reproduce this. I'm 99% sure that what happened here is, I had left a vite serve open in a shell, I upgraded to the latest firebase, and the vite started complaining that node_modules/firebase/auth/dist/index.esm.js couldn't be found. I had just merged a lockfile maintenance PR from renovate, so I tried downgrading firebase and of course this fixed the problem (and the file was back!). But the real problem was that I needed to restart my vite server.

So sorry for jumping the gun and opening an issue. :(