Complete implementation of signal-aware context propagation for graceful
cancellation across all commands and storage operations.
Key changes:
1. Signal-aware contexts (bd-rtp):
- Added rootCtx/rootCancel in main.go using signal.NotifyContext()
- Set up in PersistentPreRun, cancelled in PersistentPostRun
- Daemon uses same pattern in runDaemonLoop()
- Handles SIGINT/SIGTERM for graceful shutdown
2. Context propagation (bd-yb8):
- All commands now use rootCtx instead of context.Background()
- sqlite.New() receives context for cancellable operations
- Database operations respect context cancellation
- Storage layer propagates context through all queries
3. Cancellation tests (bd-2o2):
- Added import_cancellation_test.go with comprehensive tests
- Added export cancellation test in export_test.go
- Tests verify database integrity after cancellation
- All cancellation tests passing
Fixes applied during review:
- Fixed rootCtx lifecycle (removed premature defer from PersistentPreRun)
- Fixed test context contamination (reset rootCtx in test cleanup)
- Fixed export tests missing context setup
Impact:
- Pressing Ctrl+C during import/export now cancels gracefully
- No database corruption or hanging transactions
- Clean shutdown of all operations
Tested:
- go build ./cmd/bd ✓
- go test ./cmd/bd -run TestImportCancellation ✓
- go test ./cmd/bd -run TestExportCommand ✓
- Manual Ctrl+C testing verified
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
