referencing the cjs version instead of the esm version?

[addlistener]

Check the code here

cliui/lib/cjs.ts

Lines 3 to 5 in af3145d

	const stringWidth = require('string-width')
	const stripAnsi = require('strip-ansi')
	const wrap = require('wrap-ansi')

Should we require strip-ansi-cjs instead of strip-ansi?

Here are my errors

$ ts-node vspec.ts --input ../test_data --output out
/Users/ajc/hacking/proj/node_modules/ts-node/dist/index.js:851
            return old(m, filename);
                   ^
Error [ERR_REQUIRE_ESM]: require() of ES Module /Users/ajc/hacking/proj/node_modules/string-width/index.js from /Users/ajc/hacking/proj/node_modules/cliui/build/index.cjs not supported.
Instead change the require of index.js in /Users/ajc/hacking/proj/node_modules/cliui/build/index.cjs to a dynamic import() which is available in all CommonJS modules.

=> Found "cliui@8.0.1"
info Reasons this module exists
   - "yargs" depends on it
   - Hoisted from "yargs#cliui"
info Disk size without dependencies: "64KB"
info Disk size with unique dependencies: "348KB"
info Disk size with transitive dependencies: "552KB"
info Number of shared dependencies: 6
✨  Done in 0.12s.


=> Found "yargs@17.7.2"
info Has been hoisted to "yargs"
info This module exists because it's specified in "dependencies".
info Disk size without dependencies: "472KB"
info Disk size with unique dependencies: "1MB"
info Disk size with transitive dependencies: "1.31MB"
info Number of shared dependencies: 12

[shadowspawn]

What version of string-width is being used by cliui in your project? Check with npm ls string-width.

In theory it should be string-width@4.2.3 which is not esm.

cliui/package.json

Line 52 in af3145d

"string-width": "^4.2.0",

[shadowspawn]

The output looks like yarn. I did a quick check and and also saw expected version of string-width:

$ yarn add yargs
...
$ yarn why string-width
├─ cliui@npm:8.0.1
│  └─ string-width@npm:4.2.3 (via npm:^4.2.0)
│
├─ wrap-ansi@npm:7.0.0
│  └─ string-width@npm:4.2.3 (via npm:^4.1.0)
│
└─ yargs@npm:17.7.2
   └─ string-width@npm:4.2.3 (via npm:^4.2.3)

[addlistener]

success Saved lockfile.
success Saved 8 new dependencies.
info Direct dependencies
└─ yargs@17.7.2
info All dependencies
├─ cliui@8.0.1
├─ get-caller-file@2.0.5
├─ require-directory@2.1.1
├─ string-width@4.2.3
├─ wrap-ansi@7.0.0
├─ y18n@5.0.8
├─ yargs-parser@21.1.1
└─ yargs@17.7.2

Yes you are right

[shadowspawn]

Is your problem resolved now @addlistener ? (I think it might be from your comment, but making sure!)

[addlistener]

Hmmm...not really. I switched to commander instead

@shadowspawn but thanks for the kind response. The problem occurred when trying to pack the program with https://github.com/vercel/pkg

The pkg packer is trying to pack with commonjs. However string-width is not commonjs. I remember trying aliasing string-width to string-width-cjs and it worked.

[shadowspawn]

Thanks for the clues @addlistener
There is a PR open to rework the cjs/esm wrapping support (#143), so the packaging issues if not fixed are likely to be different if that lands!

If you have a reproduction @archonic (saw your thumbs up), feel free to open another issue with new information.