- Fixes the `Cannot access '_AppRootElementBlueprintesm' before
initialization` crash in `@backstage/frontend-plugin-api` caused by a
self-referential import in the packaged ESM.
- Cleans up similar self-imports in `@backstage/catalog-model`,
`@backstage/core-plugin-api`, `@backstage/plugin-catalog-node`,
`@backstage/plugin-kubernetes-common`, and
`@backstage/plugin-kubernetes-node`. Value imports switch to relative
paths; type-only imports use `import type` so they're erased at
runtime.
- Adds a new `@backstage/no-self-package-imports` ESLint rule. It reads
each package's `exports` map, traverses the relative import graph from
every entry's source file, and only reports imports where the current
file is in the same bundle as the target entry (same-entry). Files
that aren't reachable from any entry (tests, scripts, orphans) are
skipped. `import type`, `package.json` imports, and cross-entry
self-imports are allowed by default; cross-entry can be opted into
with `allowCrossEntry: false`.
Signed-off-by: Marat Dyatko <maratd@spotify.com>
Made-with: Cursor
Marat Dyatko
ab1cdbb9db