Aner Zakobar
95 lines
2.5 KiB
Bash
Executable File
95 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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BACKUP_DIR="${1:-/mnt2/backed-up-drive/backupstore/volumes/2c/df/pvc-5c1f48e3-346f-4c35-8e6a-8fc0c4c3a842}"
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OUTPUT_IMG="${2:-./nextcloud-data-restored.img}"
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BACKUP_CFG="$BACKUP_DIR/backups/backup_backup-eac0221d1cab4a9c.cfg"
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BLOCKS_DIR="$BACKUP_DIR/blocks"
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if [[ ! -f "$BACKUP_CFG" ]]; then
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echo "Error: Backup config not found at $BACKUP_CFG"
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exit 1
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fi
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echo "========================================"
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echo " Longhorn Backup Restore Tool"
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echo "========================================"
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echo ""
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echo "Backup: $BACKUP_DIR"
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echo "Output: $OUTPUT_IMG"
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echo ""
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SIZE=$(python3 -c "import json; print(json.load(open('$BACKUP_CFG'))['Size'])")
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BLOCK_COUNT=$(python3 -c "import json; print(len(json.load(open('$BACKUP_CFG'))['Blocks']))")
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echo "Volume size: $((SIZE / 1024 / 1024 / 1024)) GB ($SIZE bytes)"
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echo "Block count: $BLOCK_COUNT"
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echo ""
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read -p "Continue? [y/N] " -n 1 -r
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echo ""
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if [[ ! $REPLY =~ ^[Yy]$ ]]; then
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echo "Aborted."
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exit 1
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fi
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echo ""
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echo "Creating sparse image..."
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truncate -s "$SIZE" "$OUTPUT_IMG"
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echo "Restoring blocks..."
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python3 << 'PYEOF'
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import json
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import os
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import sys
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backup_cfg = os.environ['BACKUP_CFG']
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blocks_dir = os.environ['BLOCKS_DIR']
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output_img = os.environ['OUTPUT_IMG']
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with open(backup_cfg) as f:
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data = json.load(f)
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blocks = data['Blocks']
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total = len(blocks)
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with open(output_img, 'r+b') as img:
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for i, block in enumerate(blocks):
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offset = block['Offset']
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checksum = block['BlockChecksum']
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block_path = f"{blocks_dir}/{checksum[:2]}/{checksum[2:4]}/{checksum}.blk"
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if not os.path.exists(block_path):
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print(f"Warning: Block not found: {checksum}")
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continue
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with open(block_path, 'rb') as bf:
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img.seek(offset)
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img.write(bf.read())
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if (i + 1) % 1000 == 0 or i + 1 == total:
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percent = (i + 1) * 100 // total
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bar = '=' * (percent // 2) + ' ' * (50 - percent // 2)
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sys.stdout.write(f"\r[{bar}] {percent}% ({i + 1}/{total})")
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sys.stdout.flush()
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print()
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PYEOF
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echo ""
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echo "========================================"
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echo " Restore Complete!"
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echo "========================================"
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echo ""
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echo "Image: $OUTPUT_IMG"
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echo "Size: $(du -sh "$OUTPUT_IMG" | cut -f1)"
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echo ""
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echo "To mount:"
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echo " sudo losetup -fP $OUTPUT_IMG"
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echo " sudo mount /dev/loopX /mnt/point"
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echo ""
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echo "Or directly:"
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echo " sudo mount -o loop $OUTPUT_IMG /mnt/point"
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