yoloyolo/.planning/phases/07-custom-rules-and-print-config/07-02-SUMMARY.md

phase, plan, subsystem, tags, dependency_graph, tech_stack, key_files, decisions, metrics

phase	plan	subsystem	tags	dependency_graph	tech_stack	key_files	decisions	metrics
07-custom-rules-and-print-config	02	config, cmd/netsynth	config cli print-config rules wiring CFG-06 RULE-02	requires provides affects LoadResult UserRules AutoClasses PrintConfig --print-config flag runPrintConfig user-rule-prepend PrintConfig-output cmd/netsynth/main.go config/config.go	added patterns sort time strings.Builder LoadResult-propagation user-rule-prepend annotated-TOML-output	created modified cmd/netsynth/main.go cmd/netsynth/main_test.go config/config.go config/config_test.go	--print-config check placed after --list-interfaces but before interface-required validation so it works without -i AutoClasses map added to LoadResult to track which classes were auto-assigned by FNV-32a PrintConfig returns a string (not writes to io.Writer) for testability; caller prints to stdout waveformString returns custom for WaveformCustom (zero value used by hand-tuned built-in classes) classAnnotation: built-in classes compared on both BaseHz and WaveformType for override detection	duration completed tasks_completed files_modified 8min 2026-03-26T20:55:00Z 2 4

Phase 7 Plan 02: CLI Wiring and PrintConfig Output Summary

Wire the LoadResult into main.go (user rules prepend, --print-config flag), implement the PrintConfig output function in the config package, and add comprehensive tests for both. Completes RULE-02 and CFG-06 — the final plan for Phase 7 and the v1.1 milestone.

What Was Built

cmd/netsynth/main.go:

• Added printConfig bool var and --print-config flag registration
• runPrintConfig(): calls config.Load(configPath) then config.PrintConfig(result), prints to stdout, exits clean
• --print-config check fires before interface-required validation (no -i needed)
• runLiveMode and runPcapMode now accept config.LoadResult instead of bare map[TrafficClass]FreqConfig
• User rules prepend in both modes: append(result.UserRules, classify.DefaultRules...) (RULE-02)
• Removed unused synth import

config/config.go:

• LoadResult gains AutoClasses map[classify.TrafficClass]bool field
• addAutoFreqEntries updated to accept and populate autoClasses map
• Load() initializes AutoClasses map and returns it in LoadResult
• PrintConfig(result LoadResult) string: generates commented TOML output with:
  • Header: # NetSynth effective configuration, # Config source: <path or "none (using defaults)">, # Generated: <UTC timestamp>
  • [[rules]] section for each user rule (port omitted when DstPort==0)
  • [sounds.*] section for all classes in deterministic order (14 built-ins in AllClasses() order, then user-defined sorted alphabetically)
  • Per-class annotation: (default), (override), or (auto-assigned)
• waveformString(): converts WaveformType to TOML string
• classAnnotation(): determines annotation based on AutoClasses membership and comparison with defaults

Tasks Completed

Task	Name	Commit	Files
1	Wire LoadResult into main.go and add --print-config flag	d43914f	cmd/netsynth/main.go, cmd/netsynth/main_test.go
2	Implement PrintConfig output function with comment annotations	b52e36b	config/config.go, config/config_test.go

Deviations from Plan

None - plan executed exactly as written.

Test Coverage

New tests added (8 PrintConfig tests in config_test.go, 3 print-config tests in main_test.go):

config/config_test.go:

• TestPrintConfigContainsAllClasses - all 14 class names in output
• TestPrintConfigSourcePath - # Config source: <path> in header
• TestPrintConfigNoSourcePath - # Config source: none when no config
• TestPrintConfigContainsRules - [[rules]] section with port/protocol/class
• TestPrintConfigRuleNoPort - port line omitted when DstPort==0
• TestPrintConfigDefaultAnnotation - (default) for unmodified built-in class
• TestPrintConfigOverrideAnnotation - (override) for modified built-in class
• TestPrintConfigAutoAssignedAnnotation - (auto-assigned) for FNV-hash assigned class

cmd/netsynth/main_test.go:

• TestPrintConfigFlagRegistered - flag exists on command
• TestPrintConfigNoInterface - --print-config works without -i
• TestPrintConfigWithConfigFile - --print-config with --config succeeds

Full suite: go test ./... -count=1 all 7 packages pass.

Known Stubs

None. All functionality is fully implemented and wired.

Self-Check: PASSED