isInEditor not working in IntelliJ IDEA: process.env.JETBRAINS_IDE not found

[plehnen]

Describe the bug

I just migrated to @antfu/eslint-config and I am really excited about it.

But I noticed that in IntelliJ IDEA the isInEditorEnv is returning false during auto fix on save.
It seems that there is no such env variable "JETBRAINS_IDE". At least in the latest version: IntelliJ IDEA 2024.3.1.1 (Ultimate Edition) Build #IU-243.22562.218, built on December 18, 2024

Or is there something I need to activate first?
I also didn't find a way to pass this env variable to the eslint command. it is only possible to add extra eslint options.

I will try to find a workaround (it seems that when eslint is executed by the IDE the env variables "COLORTERM", "DEBUG_COLORS", "FORCE_COLOR", "MOCHA_COLORS", "npm_config_color" are set, but I don't know how reliable that is on other machines).

If you have any tips on how to detect eslint is executed by IntelliJ IDEA I would love to hear them.

Reproduction

//node

System Info

System:
    OS: Windows 11 10.0.26100
    CPU: (32) x64 Intel(R) Core(TM) i9-14900HX
    Memory: 33.03 GB / 63.71 GB
  Binaries:
    Node: 22.5.0 - C:\Program Files\nodejs\node.EXE
    npm: 10.8.2 - C:\Program Files\nodejs\npm.CMD
    pnpm: 9.15.2 - ~\AppData\Local\pnpm\pnpm.EXE
  Browsers:
    Edge: Chromium (131.0.2903.70)
    Internet Explorer: 11.0.26100.1882

Used Package Manager

npm

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Contributions

• I am willing to submit a PR to fix this issue
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