Cannot publish jsr package using bun:-import specifier, error: invalidexternalimport

[Hexagon]

Version: Deno 1 , 2 and 2.1

Long running issue... I'm trying to publish @cross/test to jsr. This library does a conditional import of bun:test if running Bun, and this error pops up while trying to publish - https://jsr.io/docs/troubleshooting#invalidexternalimport

The code is dynamically imported, so it would never execute in Deno

} else if (CurrentRuntime == Runtime.Bun) {
  const { wrappedTest } = await import("./shims/bun.ts");

... and the actual problem is in ./shims/bun.ts (which again is conditionally imported):

import { test } from "bun:test";
// ...

I originally posted this in as an issue in jsr-io/jsr (jsr-io/jsr#599) , but have figured out that the problem may live in Deno itself:

An outdated error message (as bun-specifiers should be supported by now):

deno/cli/tools/registry/diagnostics.rs

Line 479 in dd8cbf5

Cow::Borrowed("jsr only supports importing `jsr:`, `npm:`, and `data:` specifiers"),

And a function potentially missing a case for bun::

deno/cli/tools/registry/graph.rs

Line 35 in dd8cbf5

pub fn collect_diagnostics_for_graph(

[bartlomieju]

It appears that this would be solved by #24588, but not sure if that PR is landable.

[nathanwhit]

Seems like it could be landed if someone picks it up, just needs to be rebased and CI failures fixed