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Daily SQLite backup script (VACUUM INTO, 7-day rotation)

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Live user data had only a stale pre-migration backup. First snapshot
verified: 9,837 questions, 6 users. Termux has no cron; script is manual
or Tasker-driven.
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dev 2026-10-13 00:06:20 +05:30
parent cc0cd75ff9
commit ad8e878af8
1 changed files with 11 additions and 0 deletions
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deploy/termux-backup.sh Executable file
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#!/usr/bin/env bash
# Daily SQLite backup: VACUUM INTO a timestamped copy, keep 7 days.
# Usage: ./deploy/termux-backup.sh (run from repo root; safe while live)
# Termux has no cron, so run this from Termux:Tasker, a daily alarm via
# Termux:API, or manually. One line, one snapshot.
cd "$(dirname "$0")/.."
OUT="./backups/whaleprep-$(date +%F).db"
mkdir -p ./backups
sqlite3 ./whaleprep.db "VACUUM INTO '$OUT';"
ls -t ./backups/whaleprep-*.db | tail -n +8 | xargs -r rm -f
echo "backup -> $OUT ($(du -h "$OUT" | cut -f1))"