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Implements GRASP-05 specification for accepting repository announcements
that don't list this relay, enabling archive, mirror, and backup use cases.
Core Features:
- Three whitelist formats: <npub>, <npub>/<identifier>, <identifier>
- Archive-all mode for complete ecosystem mirrors
- Fail-fast npub validation at startup
- Read-only enforcement (archived repos reject pushes)
- Full GRASP-02 sync (git data + Nostr events)
- Dynamic archive status (no flags/metadata)
Implementation:
- Add ArchiveWhitelistEntry enum with Pubkey/Repository/Identifier variants
- Add ArchiveConfig with validation and matching logic
- Update AnnouncementResult to include AcceptArchive variant
- Refactor validate_announcement() to return AnnouncementResult with archive check
- Update AnnouncementPolicy with catch-all pattern for cleaner code
- Wire archive config through builder and policy layers
Configuration:
- NGIT_ARCHIVE_ALL: Accept all announcements (⚠️ storage risk)
- NGIT_ARCHIVE_WHITELIST: Comma-separated whitelist entries
- Updated docs, .env.example, and nix/module.nix
Testing:
- 28 unit tests for config parsing and whitelist matching
- 7 integration tests for archive mode validation
- All 296 tests passing
Validation Priority:
1. Lists our service → Accept (GRASP-01, read/write)
2. Is maintainer → AcceptMaintainer (multi-maintainer, read/write)
3. Matches archive config → AcceptArchive (GRASP-05, read-only)
4. None of above → Reject
Security Considerations:
- Archive-all mode has storage/bandwidth DoS risk
- Identifier-only format matches any pubkey (use npub/identifier for high-value)
- Invalid npubs cause startup failure (fail-fast)
Documentation:
- Concise explanation focused on rationale
- Reference docs updated with all config options
- README updated to reflect completed feature
- Removed from roadmap, added to compliance section
See docs/explanation/grasp-05-archive.md for details.
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Add mandatory uploadpack.allowFilter capability to support partial clones
and fetches as required by GRASP-01 specification. This enables efficient
git operations for bandwidth-constrained clients (e.g., browser-based git
clients like git-natural-api).
Changes:
- Add uploadpack.allowFilter=true to git subprocess configuration
- Update SmartGitServer test helper with filter support
- Add integration tests for filter capability advertisement and functionality
- Update documentation to reflect filter as required capability
Tests verify:
- Filter capability is advertised in info/refs
- Filtered clones with blob:none work correctly
- Filtered fetches with tree:0 work correctly
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- Add rejected events index to architecture.md with two-tier system explanation
- Document NGIT_REJECTED_HOT_CACHE_DURATION_SECS and NGIT_REJECTED_COLD_INDEX_EXPIRY_SECS in configuration.md
- Add comprehensive rejected events metrics section to monitoring.md with Grafana queries and alerts
- Explain negentropy integration with rejected index in grasp-02-proactive-sync.md
- Document state event authorization defense-in-depth and rejection tracking in inline-authorization.md
This integrates information from work/rejected-events-index-summary.md into the main documentation,
ensuring architecture docs accurately reflect the implemented rejected events index system.
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- Add SyncMetrics with full Prometheus integration
- Track sync gaps via catchup events
- Update Grafana dashboard with sync panels
- Document all sync configuration options
- Update design doc with implementation notes
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Add environment variable configuration for database backend selection:
- Added DatabaseBackend enum (memory, nostrdb, lmdb) in src/config.rs
- Updated relay builder to use configured backend in src/nostr/builder.rs
- Added NGIT_DATABASE_BACKEND to .env.example with documentation
- Updated docs/reference/configuration.md with backend comparison table
NostrDB and LMDB backends prepared for future implementation when
nostr-relay-builder adds support. Currently defaults to in-memory
database with warning logs when persistent backends are selected.
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