Renz
98d23a2322
feat: Week 3 Phase 3 - Timeline Management
- Created internal/wal/timeline.go (450+ lines)
- Implemented TimelineManager for PostgreSQL timeline tracking
- Parse .history files to build timeline branching structure
- Validate timeline consistency and parent relationships
- Track WAL segment ranges per timeline
- Display timeline tree with visual hierarchy
- Show timeline details (parent, switch LSN, reason, WAL range)
- Added 'wal timeline' command to CLI
Features:
- ParseTimelineHistory: Scan .history files and WAL archives
- ValidateTimelineConsistency: Check parent-child relationships
- GetTimelinePath: Find path from base timeline to target
- FindTimelineAtPoint: Determine timeline at specific LSN
- GetRequiredWALFiles: Collect all WAL files for timeline path
- FormatTimelineTree: Beautiful tree visualization with indentation
Timeline visualization example:
● Timeline 1
WAL segments: 2 files
├─ Timeline 2 (switched at 0/3000000)
├─ Timeline 3 [CURRENT] (switched at 0/5000000)
Tested with mock timeline data - validation and display working perfectly.
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