Plop is not able to read a a plopfile written in typescript

[blascsi]

I've been trying to include Plop in one of my projects without much luck in the past few days. Today I realised that downgrading Plop to the major version 2 seems to handle this case correctly but upgrading it to version 3 breaks it again. I'm not aware of this being deprecated (please feel free to close this if it was) so I thought opening a ticket could be helpful.
The error I'm getting while running plop with a plopfile.ts:

$ npm run plop

> [email protected] plop
> plop

[PLOP] Something went wrong with reading your plop file TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts"
    at new NodeError (node:internal/errors:371:5)
    at Object.file: (node:internal/modules/esm/get_format:72:15)
    at defaultGetFormat (node:internal/modules/esm/get_format:85:38)
    at defaultLoad (node:internal/modules/esm/load:13:42)
    at ESMLoader.load (node:internal/modules/esm/loader:303:26)
    at ESMLoader.moduleProvider (node:internal/modules/esm/loader:230:58)
    at new ModuleJob (node:internal/modules/esm/module_job:63:26)
    at ESMLoader.getModuleJob (node:internal/modules/esm/loader:244:11)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at async Promise.all (index 0) {
  code: 'ERR_UNKNOWN_FILE_EXTENSION'
}

A minimal repro repo created to show the issue:
https://github.com/blascsi/plop-3-typescript-error

The plop version that I found handled this case correctly: "^2.7.6

I tried following an implementation from #290 to get this working, and found the version there.

[hs-ltbyce]

Hi, I have same this problem.
you can try use this version:

    "node-plop": "0.26.2",
    "plop": "2.7.4",

I use this version and it work

[crutchcorn]

You'll need to compile the TS file before usage. We have an open ticket to use Plop TS config files without compiling it:

#297

[airtonix]

@crutchcorn then we should be removing any mention of plopfile.ts from production documentation.

plop/README.md

Line 148 in 973c1ce

// plopfile.ts

or at the very least:

🛑 ✋

plopfile.ts is not yet directly usable without first compiling it.

  "scripts": {
    "postinstall": "tsc ./plopfile.ts > ./plopfile.js"
  }