The metadata cache files now use a two-line NDJSON format:
- Line 1: cache headers (etag, modified, cachedAt) ~100 bytes
- Line 2: raw registry metadata JSON (unchanged)
This allows loadMetaHeaders to read only the first 1 KB of the file
to extract conditional-request headers (etag, modified), avoiding
the cost of reading and parsing multi-MB metadata files when the
registry returns 200 and the old metadata would be discarded.
Also moves cache directories to v11/ namespace (v11/metadata,
v11/metadata-full, v11/metadata-full-filtered) since the format
is not backwards compatible.
Replace node-fetch with native undici for HTTP requests throughout pnpm.
Key changes:
- Replace node-fetch with undici's fetch() and dispatcher system
- Replace @pnpm/network.agent with a new dispatcher module in @pnpm/network.fetch
- Cache dispatchers via LRU cache keyed by connection parameters
- Handle proxies via undici ProxyAgent instead of http/https-proxy-agent
- Convert test mocking from nock to undici MockAgent where applicable
- Add minimatch@9 override to fix ESM incompatibility with brace-expansion
Add n/prefer-node-protocol rule and autofix all bare builtin imports
to use the node: prefix. Simplify the simple-import-sort builtins
pattern to just ^node: since all imports now use the prefix.
* feat: use JSON for npm registry metadata cache instead of msgpack
Switch the on-disk package metadata cache from msgpack (.mpk) to JSON (.json).
When metadata is not filtered, the raw JSON response from the registry is written
directly to disk with cachedAt injected, avoiding a parse-then-serialize round-trip.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: update lockfileOnly test to use .json metadata extension
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Update resolving/npm-resolver/src/pickPackage.ts
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
