add-new-bcd: filters needed

[Elchi3]

I need the same filtering that update-bcd has in the add-new-bcd script:

Right now I can do:
npm run update-bcd -- -b firefox -r 120-120

But not:
npm run add-new-bcd -- -b firefox -r 120-120

[queengooborg]

The reason that add-new-bcd doesn't have any such filtering is because, unlike update-bcd, add-new-bcd must collect info all browsers to add a brand new entry. We probably wouldn't want to have all other browsers set to false if they aren't supposed to be when adding a new entry!

Additionally, I personally think that it would be better to run add-new-bcd regardless of what specific browser version a feature was implemented in. My reasoning for this is that often times, a standards spec may add a feature that has already been implemented in all browsers, or a previously non-standard spec became a standard. If we run add-new-bcd based upon the version a feature was added into a browser, there's a high chance we'll end up skipping a feature, and we'll have to go back and run add-new-bcd without filters anyways.

[Elchi3]

The reason that add-new-bcd doesn't have any such filtering is because, unlike update-bcd, add-new-bcd must collect info all browsers to add a brand new entry.

Yes, I see that it must collect info on all browsers but my use case is to create a PR for a new browser release like mdn/browser-compat-data#21083.

We probably wouldn't want to have all other browsers set to false if they aren't supposed to be when adding a new entry!

In this case all browsers would be false but Firefox would be 120. In this scenario I'm not interested in new features that are shipping in Chrome 122 and are false in all other browsers, for example. Does that make sense?

[Elchi3]

For mdn/browser-compat-data#21148 I had to manually filter out the new stuff in Chrome 120. Would have loved if there was a filter.

[Elchi3]

I've worked through almost all of the things that add-new-bcd proposes and I opened PRs to improve the test-builders. I think if these are merged the list of things add-new-bcd proposes should be fairly small, so maybe filters aren't needed then after all.