feat: Week 3 Phase 4 - Point-in-Time Restore
- Created internal/pitr/recovery_target.go (330 lines)
- ParseRecoveryTarget: Parse all target types (time/xid/lsn/name/immediate)
- Validate: Full validation for each target type
- ToPostgreSQLConfig: Convert to postgresql.conf format
- Support timestamp, XID, LSN, restore point name, immediate recovery
- Created internal/pitr/recovery_config.go (320 lines)
- RecoveryConfigGenerator for PostgreSQL 12+ and legacy
- Generate recovery.signal + postgresql.auto.conf (PG 12+)
- Generate recovery.conf (PG < 12)
- Auto-detect PostgreSQL version from PG_VERSION
- Validate data directory before restore
- Backup existing recovery config
- Smart restore_command with multi-extension support (.gz.enc, .enc, .gz)
- Created internal/pitr/restore.go (400 lines)
- RestoreOrchestrator for complete PITR workflow
- Extract base backup (.tar.gz, .tar, directory)
- Generate recovery configuration
- Optional auto-start PostgreSQL
- Optional recovery progress monitoring
- Comprehensive validation
- Clear user instructions
- Added 'restore pitr' command to cmd/restore.go
- All recovery target flags (--target-time, --target-xid, --target-lsn, --target-name, --target-immediate)
- Action control (--target-action: promote/pause/shutdown)
- Timeline selection (--timeline)
- Auto-start and monitoring options
- Skip extraction for existing data directories
Features:
- Support all PostgreSQL recovery targets
- PostgreSQL version detection (12+ vs legacy)
- Comprehensive validation before restore
- User-friendly output with clear next steps
- Safe defaults (promote after recovery)
Total new code: ~1050 lines
Build: ✅ Successful
Tests: ✅ Help and validation working
Example usage:
dbbackup restore pitr \
--base-backup /backups/base.tar.gz \
--wal-archive /backups/wal/ \
--target-time "2024-11-26 12:00:00" \
--target-dir /var/lib/postgresql/14/main
Renz
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