Create directories recursively if they don't exist

[GauBen]

Hey!

I'm generating the introspection types in a directory that is git-ignored, and graphqlsp does not create this directory automatically if not found

What do you think about adding something roughly like this?

if (output.endsWith('.ts')) {
  await mkdir(path.dirname(output), { recursive: true });
}

(with proper error handling of course)

Ref:

GraphQLSP/packages/graphqlsp/src/graphql/getSchema.ts

Lines 78 to 87 in acede9b

	let output = tadaOutputLocation;
	if (await statFile(output, stat => stat.isDirectory())) {
	output = path.join(output, 'introspection.d.ts');
	} else if (
	!(await statFile(path.dirname(output), stat => stat.isDirectory()))
	) {
	logger(`Output file is not inside a directory @ ${output}`);
	return;
	}

I'd be happy to contribute a pull request if this change is accepted

[kitten]

I've got a corresponding fix up here at: 0no-co/gql.tada#401
I'm not sure if we want to share this code actually, but we could

[GauBen]

Thanks for being so reactive!