[FEATURE] allow to know user cancel sub process

[bluelovers]

What / Why

n/a

import runScript from '@npmcli/run-script';
(async () => {
	let path = 'xxxx\\test\\res\\pkg-a';
	await runScript({
		event: 'pretest',
		path,
		stdioString: true,
		stdio: 'inherit',
	})
		.then((ret) =>
		{
			console.dir(ret)
		})
		.catch((e) =>
		{
			console.trace(e)
		})
	;
	await runScript({
		event: 'test',
		path,
		stdioString: true,
		stdio: 'inherit',
	})
		.then((ret) =>
		{
			console.dir(ret)
		})
		.catch((e) =>
		{
			console.trace(e)
		})
	;
})();

{
  "name": "pkg-a",
  "scripts": {
    "pretest": "echo pretest && npm init",
    "test": "echo test",
  }
}

When

• n/a

Where

• n/a

How

when npm init is ask input
send a ctrl + c ending it

Current Behavior

• n/a

> pkg-a@1.0.0 pretest
> echo pretest && npm init
pretest
This utility will walk you through creating a package.json file.
It only covers the most common items, and tries to guess sensible defaults.

See `npm help json` for definitive documentation on these fields
and exactly what they do.

Use `npm install <pkg>` afterwards to install a package and
save it as a dependency in the package.json file.

Press ^C at any time to quit.
package name: (pkg-a) npm WARN init canceled
{
  cmd: 'C:\\WINDOWS\\system32\\cmd.exe',
  args: [ '/d', '/s', '/c', '"echo pretest && npm init"' ],
  code: 0,
  signal: null,
  stdout: '',
  stderr: '',
  event: 'pretest',
  script: 'echo pretest && npm init',
  pkgid: '[email protected]',
  path: 'test\\res\\pkg-a'
}
> pkg-a@1.0.0 test
> echo test
test
{
  cmd: 'C:\\WINDOWS\\system32\\cmd.exe',
  args: [ '/d', '/s', '/c', '"echo test"' ],
  code: 0,
  signal: null,
  stdout: '',
  stderr: '',
  event: 'test',
  script: 'echo test',
  pkgid: '[email protected]',
  path: 'test\\res\\pkg-a'
}

Expected Behavior

• n/a

can know user is send ctrl + c from return message

Who

• n/a

References

• n/a

[isaacs]

The plan (discussed in npm/cli#2124) is to proxy signals to and from child processes when run in foreground mode (ie, stdio: 'inherit').