Newly created JS files are not added to configured project until server restart

[andrewbranch]

Bug Report

🔎 Search Terms

js inferred project restart server

🕗 Version & Regression Information

Tested on 4.3.0-dev.20210316

• I was unable to test this on prior versions because that seemed like it would take a lot of time

💻 Code

tsconfig.json:

{
  "compilerOptions": {
    "lib": ["es2020"],
    "allowJs": true,
    "checkJs": true,
    "strict": true,
    "noEmit": true,
    "types": ["node"]
  }
}

Open project, then add a new JS file.

🙁 Actual behavior

It doesn’t get checked for errors, and can’t see globals declared in other JS files in the project. TS Server log shows the file added to a new inferred project instead of the configured project. After restarting TS Server, the file is in the configured project as expected.

🙂 Expected behavior

The file gets added to the configured project.

[MartinJohns]

That sounds like #43280.

[andrewbranch]

Touché @DanielRosenwasser, you got me good, now I’ve gone and duplicated myself