Repository navigation
proxy mirror stores gem/composer packages under rubygems/packagist, handlers use gem/composer #415
Description
Noticed by @pinguinfuss in #306.
internal/mirror/source.go:53 maps PURL types to ecosystems via purl.PURLTypeToEcosystem:
ecosystem := purl.PURLTypeToEcosystem(p.Type)
In github.com/git-pkgs/purl that function maps gem → rubygems and composer → packagist (the ecosyste.ms-style registry names). The protocol handlers store cached artifacts under gem and composer. So a package mirrored via proxy mirror and the same package cached via a client install land under different ecosystem keys in the DB and storage.
This affects anything that keys on packages.ecosystem: eviction/retention, analytics, the packages list filter, and dedup against already-cached artifacts.
Fix is probably to have mirror use the handler-side names directly rather than going through PURLTypeToEcosystem, or to add a proxy-local mapping. Existing mirrored rows under the old names would need handling (either a migration or dual-read).
Activity
andrew commentedon Oct 12, 2026
Correction to the diagnosis above: on current main, mirroring
pkg:gem/rake@13.2.1andpkg:composer/psr/log@3.0.2fails withunsupported ecosystem: rubygemsandunsupported ecosystem: packagist. Neither artifact is downloaded, so this does not reproduce duplicate cache entries.Cache lookups use canonical package/version PURLs and filenames, then read the storage path recorded in the database. The different ecosystem spelling alone does not establish a cache miss. Analytics also already combines these aliases.
Keeping this open for consistent ecosystem naming. Resolver alias support belongs in
git-pkgs/registries, alongside the resolver work discussed in #414. The remaining package-filter mismatch needs verification before proposing data cleanup. There is no evidence yet that storage moves or a data migration are needed.Enable storage retention for composer
Enable storage retention for gem
Enable storage retention for gem
Enable storage retention for composer