Maxim Dolgolyov
be4d43105e
Node.js/Express backend + vanilla JS frontend. Features: real-time collaborative whiteboard (SSE), multi-page support, LaTeX formulas, shapes/connectors, coordinate systems, number lines, compass, zoom/pan, Catmull-Rom pencil smoothing, ruler/protractor with rotation & resize controls, minimap navigation overlay, auto-measurements, multi-page thumbnails sidebar, PNG export, page templates. Student/teacher workflows: classes, assignments, library, dashboard. Mobile responsive. SQLite (better-sqlite3). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
50 lines
1.8 KiB
Bash
50 lines
1.8 KiB
Bash
#!/bin/sh
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# ── LearnSpace SQLite backup ──────────────────────────────────────────────
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# Uses VACUUM INTO for a safe, consistent snapshot (no WAL/SHM issues).
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# Usage:
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# ./backup.sh # default paths
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# ./backup.sh /path/to/db /path/to/backups
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# KEEP=14 ./backup.sh # keep last 14 backups (default: 7)
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# ─────────────────────────────────────────────────────────────────────────
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set -e
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DB_PATH="${1:-${DB_PATH:-$(dirname "$0")/../data/learnspace.db}}"
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BACKUP_DIR="${2:-${BACKUP_DIR:-$(dirname "$0")/../../backups}}"
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KEEP="${KEEP:-7}"
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if [ ! -f "$DB_PATH" ]; then
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echo "[backup] ERROR: database not found at $DB_PATH" >&2
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exit 1
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fi
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mkdir -p "$BACKUP_DIR"
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TIMESTAMP=$(date +%Y%m%d_%H%M%S)
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BACKUP_FILE="$BACKUP_DIR/learnspace_${TIMESTAMP}.db"
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echo "[backup] Creating snapshot: $BACKUP_FILE"
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sqlite3 "$DB_PATH" "VACUUM INTO '$BACKUP_FILE';"
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# Verify backup is not empty
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SIZE=$(wc -c < "$BACKUP_FILE" | tr -d ' ')
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if [ "$SIZE" -lt 1024 ]; then
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echo "[backup] ERROR: backup file is suspiciously small (${SIZE} bytes)" >&2
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rm -f "$BACKUP_FILE"
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exit 1
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fi
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echo "[backup] OK — $(echo "scale=1; $SIZE / 1048576" | bc 2>/dev/null || echo "$SIZE bytes")"
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# Rotate: keep only the last $KEEP backups
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COUNT=$(ls -1 "$BACKUP_DIR"/learnspace_*.db 2>/dev/null | wc -l)
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if [ "$COUNT" -gt "$KEEP" ]; then
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REMOVE=$((COUNT - KEEP))
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ls -1t "$BACKUP_DIR"/learnspace_*.db | tail -n "$REMOVE" | while read -r f; do
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echo "[backup] Removing old: $(basename "$f")"
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rm -f "$f"
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done
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fi
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echo "[backup] Done. Backups retained: $KEEP"
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