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refactor: rename last_import_hash to jsonl_content_hash (bd-39o)

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The metadata key 'last_import_hash' was misleading because it's updated on
both import AND export. Renamed to 'jsonl_content_hash' which more accurately
describes its purpose - tracking the content hash of the JSONL file.

Added migration support: read operations try new key first, then fall back
to old key for backwards compatibility with existing databases.

Files modified:
- cmd/bd/integrity.go: Update key name with migration support
- cmd/bd/import.go: Update key name
- cmd/bd/sync.go: Update key name
- cmd/bd/autoflush.go: Update key name with migration support
- cmd/bd/daemon_sync.go: Update key name
- cmd/bd/daemon_event_loop.go: Update key name with migration support
- internal/autoimport/autoimport.go: Update key name with migration support
- Updated all related tests

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Steve Yegge
2025-11-28 23:14:06 -08:00
parent bca8022bee
commit f59f8c20d0
9 changed files with 90 additions and 64 deletions
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7
cmd/bd/sync.go
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@@ -986,14 +986,15 @@ func exportToJSONL(ctx context.Context, jsonlPath string) error {
// Clear auto-flush state
clearAutoFlushState()
// Update last_import_hash metadata to enable content-based staleness detection (bd-khnb fix)
// Update jsonl_content_hash metadata to enable content-based staleness detection (bd-khnb fix)
// After export, database and JSONL are in sync, so update hash to prevent unnecessary auto-import
// Renamed from last_import_hash (bd-39o) - more accurate since updated on both import AND export
if currentHash, err := computeJSONLHash(jsonlPath); err == nil {
if err := store.SetMetadata(ctx, "last_import_hash", currentHash); err != nil {
if err := store.SetMetadata(ctx, "jsonl_content_hash", currentHash); err != nil {
// Non-fatal warning: Metadata update failures are intentionally non-fatal to prevent blocking
// successful exports. System degrades gracefully to mtime-based staleness detection if metadata
// is unavailable. This ensures export operations always succeed even if metadata storage fails.
fmt.Fprintf(os.Stderr, "Warning: failed to update last_import_hash: %v\n", err)
fmt.Fprintf(os.Stderr, "Warning: failed to update jsonl_content_hash: %v\n", err)
}
// Use RFC3339Nano for nanosecond precision to avoid race with file mtime (fixes #399)
exportTime := time.Now().Format(time.RFC3339Nano)