Add esbuild to pack bundler

[alan-fang]

Still need to test this.

Was there anything you were thinking of in terms of replacing make build in our sdk repo? I took a quick glance but am not too familiar with what we need as a base requirement for the generated files here. For example, looks like esbuild doesn't support declaration files. (evanw/esbuild#95)

[jonathan-codaio]

Very cool. Can we make this a CLI flag perhaps? Something like --compiler=esbuild or --compiler=webpack as the only two options, and the default is esbuild for now. No need to do the fallback, it'll just build with the specified compiler, and once we have enough infrastructure to run these we can see if it makes a difference which one is used.

No need to touch make build, the terminology is confusing, but that's just building TypeScript to JavaScript using tsc. In this case we're not really "building" but "bundling".

[alan-fang]

Very cool. Can we make this a CLI flag perhaps? Something like --compiler=esbuild or --compiler=webpack as the only two options, and the default is esbuild for now. No need to do the fallback, it'll just build with the specified compiler, and once we have enough infrastructure to run these we can see if it makes a difference which one is used.

Yeah that's a better option. Updated!

[jonathan-codaio]

🎉