Support npm: specifiers

[exside]

As this is pretty new (since 1.25) I assume this wasn't updated yet and therefore throws the following error when there are any imports from NPM.

error: Uncaught Error: load rejected or errored: JsValue(TypeError: Unsupported scheme "npm:" for module "npm:somepackage". Supported schemes: ["data:","blob:","file:","http:","https:"].
TypeError: Unsupported scheme "npm:" for module "npm:somepackage". Supported schemes: ["data:","blob:","file:","http:","https:"].

[jcc10]

At the moment I would recommend using https://esm.sh/ as skypack has been dying a slow and painful death.

[johnstonmatt]

@dsherret do you know if this is planned or if there is a suitable alternative for bundling modern Deno projects?

I have a few open source binaries compiled with deno that are quite enormous based on the inclusion of npm modules, and I'm hoping to treeshake it back to something reasonable

the binary releases for my open source project (cndi) are here you can see how before cndi version 2.0.0 binaries were 120mb and now they are each >1.8GB, from only 336kb of code

would the deno emit tool help solve this issue if it supported npm specifiers?

Thanks for your work on deno!