tsconfig `exclude` from an `extends` not working

[kylemh]

Current Behavior

When using a monorepo, I'd like to minify the amount tsconfig I am defining per package. To that end, the value of the exclude property at the root config is being ignored when building TSDX packages in their own subdirectories.

You can test for yourself thru this example project by doing:

yarn install
yarn workspace @innocuous/components add @innocuous/hooks
yarn workspace @innocuous/hooks run build
yarn workspace @innocuous/components run build

and noticing that storybook files are compiled, despite being ignored from the root config extended by the package's config.

It seems like running tsc with my tsconfigs works as expected, but the build step continues to compile things I am excluding.

Expected behavior

In the example repo, stories are not compiled.

Suggested solution(s)

Unsure... I'd love to resolve this myself. @agilgur5 has DMs disabled on Twitter, but I was curious if anybody would be down to pair for a short chat about how files/folders are chosen for the build step in tsdx.

Additional context

Similar issue resolved: #61

Your environment

Software	Version(s)
TSDX	latest
TypeScript	latest
Browser	Chrome latest
npm/Yarn	yarn latest
Node	node latest
Operating System	MacOS latest

[agilgur5]

This is a follow-up from #646 (comment)

how files/folders are chosen for the build step in tsdx.

There's nothing special, the source code just adds some defaults and passes to rpts2:

tsdx/src/createRollupConfig.ts

Lines 146 to 177 in f58de19

	typescript({
	typescript: ts,
	cacheRoot: `./node_modules/.cache/tsdx/${opts.format}/`,
	tsconfig: opts.tsconfig,
	tsconfigDefaults: {
	exclude: [
	// all TS test files, regardless whether co-located or in test/ etc
	'**/*.spec.ts',
	'**/*.test.ts',
	'**/*.spec.tsx',
	'**/*.test.tsx',
	// TS defaults below
	'node_modules',
	'bower_components',
	'jspm_packages',
	paths.appDist,
	],
	compilerOptions: {
	sourceMap: true,
	declaration: true,
	jsx: 'react',
	},
	},
	tsconfigOverride: {
	compilerOptions: {
	// TS -> esnext, then leave the rest to babel-preset-env
	target: 'esnext',
	},
	},
	check: !opts.transpileOnly,
	useTsconfigDeclarationDir: Boolean(tsCompilerOptions?.declarationDir),
	}),

I'd need to check your repo and see how tsc was working, but if this is really a bug, it'd be upstream in rpts2 since TSDX doesn't do anything fancy. Afaik in the rpts2 source code (I've contributed a small bit to fix issues here), it doesn't do much with include / exclude either and passes that to the TS API.
Which is why I'm surprised if it doesn't handle exactly like tsc

[kylemh]

Yeah. I was surprised as well. Sure enough running TSC won’t compile storybook files, but TSDX build will.