Renz
b18e9e9ec9
feat: Step 6 - Implement RestoreIncremental() for PostgreSQL
Implemented full incremental backup restoration:
internal/backup/incremental_postgres.go:
- RestoreIncremental() - main entry point
- Validates incremental backup metadata (.meta.json)
- Verifies base backup exists and is full backup
- Verifies checksums match (BaseBackupID == base SHA256)
- Extracts base backup to target directory first
- Applies incremental on top (overwrites changed files)
- Context cancellation support
- Comprehensive error handling:
- Missing base backup
- Wrong backup type (not incremental)
- Checksum mismatch
- Missing metadata
internal/backup/incremental_extract.go:
- extractTarGz() - extracts tar.gz archives
- Handles regular files, directories, symlinks
- Preserves file permissions and timestamps
- Progress logging every 100 files
- Context-aware (cancellable)
Restore Logic:
1. Load incremental metadata from .meta.json
2. Verify base backup exists and checksums match
3. Extract base backup (full restore)
4. Extract incremental backup (apply changed files)
5. Log completion with file counts
Features:
✅ Validates backup chain integrity
✅ Checksum verification for safety
✅ Handles base backup path mismatch (warning)
✅ Creates target directory if missing
✅ Preserves file attributes (perms, mtime)
✅ Detailed logging at each step
Status: READY FOR TESTING
Next: Write integration test (Step 7)
2025-11-26 07:04:34 +00:00
..
2025-11-25 19:44:52 +00:00
2025-11-26 07:04:34 +00:00
2025-11-26 07:04:34 +00:00
2025-11-26 06:51:32 +00:00
2025-11-26 06:22:54 +00:00