fix: example thumbnail build

[epreston]

The file and content exists in the generated site content but the class for this example is commented out. This bocks thumbnails from being generated for the whole project.

Related: #5521

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[willeastcott]

Hey @mvaligursky and @slimbuck, I know this example was hidden because it's not ready for public comsumption. But if it's breaking the build, we should either merge this or figure out a way to hide it without breaking stuff. I'll leave it to you two to decide.

[epreston]

It's not being hidden when you build examples. It is there in the list of examples, just no thumbnail. The thumbnail builds break halfway through leaving only half thumbs. Example works great otherwise.

[mvaligursky]

For now we need to remove the example (instead of commenting it out). It works, but the API is not finalised / public yet.
We used to have HIDDEN option in the example being supported before, to skip adding those examples to the list before, but that seems gone now, so we just need to remove its import for now.

[epreston]

Understood, I'll update.

Looks like the easiest path is to exclude it the way "index.mjs" is excluded.

[mvaligursky]

Yep, we should just remove those two lines with LitMaterialExample in them from the index.mjs

[epreston]

The thumbnails are built by enumerating files in a directory. It's going to search for that code if it does not ignore the file, commented or not, that's the issue.

[mvaligursky]

Ah I see. Hmm, this feels pretty hidden way to do this, I can see somebody spending time trying to figure out why this example does not have a thumbnail in the future. Perhaps add a log when this name is filtered out, so that we're aware, thanks.

[epreston]

I'm knee deep in the examples build stuff. I'd like to add that HIDDEN option back in, would a PR for that be welcome ?

[mvaligursky]

I'd like to add that HIDDEN option back in, would a PR for that be welcome

It would be very much appreciated to have it back, thanks for looking at this!

[mvaligursky]

Perfect, thanks, commenting out is great.