source.Source is the contract every Collector input implements: Name +
Run(ctx, emit). Sources don't own state — they convert external events
into emit calls. Dispatcher routes.
internal/source/dropfolder: watches ~/Nyx/workspace/incoming/ for
*.json drop files. fsnotify-driven with periodic poll fallback (default
30s safety net for missed events). Each file:
1. Parsed against the spec §3.1.2 schema with DisallowUnknownFields.
2. Valid → emitted, then file deleted.
3. Invalid (missing fields, bad type/priority, unknown fields, garbage)
→ moved to .dead-letter/ with a sidecar .reason file for forensics.
4. Emit failure → file retained in place for retry (transient errors
shouldn't be permanent dead-letters).
Also: initial-scan on Run() drains files that landed before the watcher
attached, catching up after a Collector restart.
14 tests in the package — schema validation table for all error cases,
initial-scan, live inotify drop, post-emit delete, dead-letter +
sidecar, emit-failure retention. Plus the 7 inbox tests still passing.
Pinned fsnotify v1.7.0 (Go 1.22 compatible; 1.10.x demanded toolchain
1.23 which isn't in apt yet). go.mod stays at 1.22 to match VPS.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Layer 1 keystone. The internal/inbox package writes ping-shaped JSONL
events to recipient inbox files in a format bit-identical to the
agent-ping CLI's output, so the existing UserPromptSubmit hook and the
future MCP Watcher cannot tell whether a line came from `ping` or the
Collector.
- O_APPEND opens for atomic line writes (POSIX guarantees writes <=
PIPE_BUF, our lines are well under).
- Per-recipient sync.Mutex bounds contention; multiple goroutines
writing to one inbox stay correctly serialized.
- 7 tests passing: shape, ID/TS preservation, omitempty for optional
fields, key-set + compactness match against ping CLI's separators=
(",",":") output, 100-goroutine concurrent-write torn-line check,
bad-input rejection, empty-dir rejection.
go.mod at git.botbought.ai/foreman/agent-watcher; module name matches
the public Forgejo path so eventual consumers can `go get` it.
Next milestones:
- Source plugin interface
- Drop folder source (inotify, via fsnotify)
- HTTP webhook source
- Config loader (YAML)
- main.go wiring
- systemd unit
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
