From d3d23f0cd87f7fa6cc435eecce236b908ac38423 Mon Sep 17 00:00:00 2001 From: dan Date: Sun, 11 Jan 2026 16:04:08 -0800 Subject: [PATCH] docs: add worklog for worker CLI cleanup session Documents exit code fixes, P3/P4 refactors, and tech debt resolution. 10 commits, 13 files, +980/-241 lines, 56/56 tests passing. Co-Authored-By: Claude Opus 4.5 --- ...026-01-11-worker-cli-cleanup-refactors.org | 170 ++++++++++++++++++ 1 file changed, 170 insertions(+) create mode 100644 docs/worklogs/2026-01-11-worker-cli-cleanup-refactors.org diff --git a/docs/worklogs/2026-01-11-worker-cli-cleanup-refactors.org b/docs/worklogs/2026-01-11-worker-cli-cleanup-refactors.org new file mode 100644 index 0000000..b8e4aa7 --- /dev/null +++ b/docs/worklogs/2026-01-11-worker-cli-cleanup-refactors.org @@ -0,0 +1,170 @@ +#+TITLE: Worker CLI Cleanup: Exit Codes, Refactors, and Tech Debt Resolution +#+DATE: 2026-01-11 +#+KEYWORDS: worker-cli, nim, refactoring, exit-codes, sqlite, state-machine, testing +#+COMMITS: 10 +#+COMPRESSION_STATUS: uncompressed + +* Session Summary +** Date: 2026-01-11 (Day 2 of worker CLI implementation) +** Focus Area: Code quality cleanup and tech debt resolution for worker CLI + +This session continued from yesterday's multi-agent worker CLI implementation, focusing +on fixing bugs discovered during testing, completing P3/P4 refactoring tasks, and +ensuring all loose ends were tied up. + +* Accomplishments +- [X] Fixed exit codes bug (skills-lxb9) - state transition errors now return code 3 +- [X] Fixed double ROLLBACK bug in state.nim transaction handling +- [X] Extracted poll() null-check helper with generic optFromDb function +- [X] Extracted rowToWorkerInfo helper to deduplicate getWorker/getAllWorkers +- [X] Extracted loadContextFromPath helper to deduplicate context loading +- [X] Created developer docs for compiling/deployment workflow +- [X] Consolidated isStale/staleLevel into single computeStaleLevel with enum +- [X] Refactored transition functions to use withTransaction template +- [X] Added schema migration infrastructure for future DB changes +- [X] Extracted renderStatusTable from nested proc in status() +- [X] Added column width constants for status table +- [X] Replaced case statement with parseEnum for heartbeat status +- [X] Added return value to startGlobalHeartbeat for caller feedback +- [X] Removed unused getBranchStatus function (dead code) +- [X] Ran comprehensive integration testing throughout + +* Key Decisions +** Decision 1: Use StaleLevel enum instead of string returns +- Context: isStale() and staleLevel() had duplicated logic for computing staleness +- Options considered: + 1. Keep separate functions with shared helper + 2. Create enum and single source of truth function +- Rationale: Enum provides type safety, single computeStaleLevel is canonical +- Impact: Cleaner API, easier to add new stale levels in future + +** Decision 2: Remove getBranchStatus rather than keep unused code +- Context: Function existed but was never called anywhere +- Options considered: + 1. Keep for potential future use + 2. Remove and restore from git history if needed +- Rationale: Dead code creates maintenance burden; git preserves history +- Impact: Smaller, cleaner codebase + +** Decision 3: Leave tryClaim with inline transaction handling +- Context: tryClaim has different semantics (returns bool, doesn't raise) +- Options considered: + 1. Create withTransactionOrFalse variant + 2. Leave as-is with inline handling +- Rationale: Over-engineering for one function; semantics differ from withTransaction +- Impact: Pragmatic choice, tryClaim remains readable + +* Problems & Solutions +| Problem | Solution | Learning | +|---------|----------|----------| +| Double ROLLBACK causing "no transaction active" | Removed inline ROLLBACKs, let except block handle | Single rollback point prevents double-free pattern | +| StaleState not caught, wrong exit code | Added except StaleState alongside InvalidTransition | Map all state errors to same exit code | +| Tests failing with NOT_FOUND for DB queries | sqlite3 wasn't in PATH; set LD_LIBRARY_PATH and PATH | Test environment needs explicit sqlite setup | +| parseEnum type not matching HeartbeatStatus | HeartbeatStatus enum values match string literals exactly | Nim parseEnum uses enum value strings | + +* Technical Details + +** Code Changes +- Total files modified: 13 +- Key files changed: + - =src/worker.nim= - Exit code handling, renderStatusTable extraction, parseEnum + - =src/worker/state.nim= - withTransaction usage, StaleLevel enum, rowToWorkerInfo + - =src/worker/db.nim= - Migration infrastructure, optFromDb in poll() + - =src/worker/utils.nim= - optFromDb generic helper + - =src/worker/context.nim= - loadContextFromPath extraction + - =src/worker/heartbeat.nim= - startGlobalHeartbeat return value + - =src/worker/git.nim= - Removed unused getBranchStatus + - =src/worker/types.nim= - StaleLevel enum +- New files created: + - =docs/worker-cli-dev-guide.md= - Developer documentation + +** Commands Used +#+begin_src bash +# Compile worker +nix-shell -p nim --run "nim c -d:release --mm:orc src/worker.nim" + +# Run tests with sqlite in environment +bash -c 'export LD_LIBRARY_PATH=/nix/store/.../lib; \ + export PATH=$PATH:/nix/store/.../bin; \ + src/worker/tests/test-worker.sh' + +# Find sqlite library paths on NixOS +find /nix/store -name "libsqlite3.so" | head -1 +find /nix/store -name "sqlite3" -type f | grep bin | head -1 +#+end_src + +** Architecture Notes +- Transaction handling: Single withTransaction template with ROLLBACK in except block +- State machine: Exceptions flow through, caller handles WorkerNotFound/StaleState/InvalidTransition +- Schema migrations: Version-based, forward-only, runs automatically on DB open +- Column constants: Centralized for consistent table formatting + +* Process and Workflow + +** What Worked Well +- Incremental refactoring with test verification after each change +- Using beads issues to track and close work systematically +- Integration testing caught the double-ROLLBACK bug early +- TodoWrite for tracking progress through multiple small tasks + +** What Was Challenging +- Network down prevented pushing to remote throughout session +- NixOS sqlite library path discovery requires manual lookup +- Context recovery from session compaction required careful reading + +* Learning and Insights + +** Technical Insights +- Nim's ORC handles ref types cleanly; no manual memory management needed +- tiny_sqlite ResultRow works directly with openArray-like indexing +- parseEnum is cleaner than case statements for string-to-enum conversion +- withTransaction template elegantly handles BEGIN/COMMIT/ROLLBACK pattern + +** Process Insights +- P4 tasks compound quickly; worth batching them together +- Code review findings from previous session created useful task backlog +- Comprehensive test suite catches regressions during refactoring + +** Architectural Insights +- State machine exceptions should be unified at handler level (all -> exit code 3) +- Schema migrations need to be idempotent and forward-only +- Separating render logic from CLI dispatch improves testability + +* Context for Future Work + +** Open Questions +- Should query procs move from state.nim to db.nim? (skills-8la4, P4) +- Rollback strategy for failed workers needs design (skills-7n4, P3) +- Git bundle checkpoints evaluation pending (skills-8ak, P3) + +** Next Steps +- Push commits when network available +- Design doc for rollback strategy +- Consider multi-agent orchestration integration points + +** Related Work +- [[file:2026-01-10-multi-agent-lego-architecture-design.org][Multi-Agent Lego Architecture Design]] - Previous session +- =docs/adr/006-nim-worker-cli.md= - ADR for Nim language choice +- =docs/worker-cli-dev-guide.md= - Developer documentation created this session + +* Raw Notes +Session was continuation of worker CLI implementation. Primary focus shifted from +feature development to code quality and bug fixes discovered during testing. + +The exit codes bug was interesting - the state machine was raising StaleState when +current state didn't match expected state, but the CLI commands only caught +InvalidTransition. This caused unhandled exception behavior with wrong exit codes. + +The double-ROLLBACK bug was subtle: transition() had inline ROLLBACKs before raising +exceptions, then the except block tried to ROLLBACK again. SQLite correctly rejected +the second ROLLBACK since there was no active transaction. + +Network was down throughout session (192.168.1.108:3000 unreachable), so all work +is committed locally but not pushed. Will need to push when network recovers. + +* Session Metrics +- Commits made: 10 +- Files touched: 13 +- Lines added/removed: +980/-241 +- Tests added: 0 (existing test suite used) +- Tests passing: 56/56