Move package-type-specific local repo logic into provider packages via
optional interfaces, eliminating switch statements from handlers.
- provider.LocalUploader: ValidateUpload + UploadResponse
- provider.LocalIndexer: ServeLocalIndex + GenerateLocalIndex
- provider.FileStore: interface for querying local files (implemented
by database.DB)
PyPI and Terraform providers now implement both interfaces. The local
handler and v1 proxy use type assertions to dispatch — adding a new
local repo type only requires implementing the interfaces in its
provider package, no handler changes needed.
local.go: 468 → 163 lines (removed all PyPI/Terraform specifics)
proxy.go: 211 → 136 lines (removed switch + helper methods)
engine.go: removed LocalIndexGenerator, uses provider.LocalIndexer
unkinben