implement db back to s3

backup_sqlite.sh

@@ -0,0 +1,79 @@
+#!/bin/bash
+
+# Usage: ./backup_script.sh -l true or ./backup_script.sh -l false
+
+# Parse command-line argument for local_db flag
+while getopts "l:" opt; do
+  case $opt in
+    l)
+      LOCAL_DB=$OPTARG
+      ;;
+    *)
+      echo "Usage: $0 -l [true|false]"
+      exit 1
+      ;;
+  esac
+done
+
+# Validate LOCAL_DB argument
+if [ "$LOCAL_DB" != "true" ] && [ "$LOCAL_DB" != "false" ]; then
+  echo "Error: Invalid value for -l. Must be 'true' or 'false'."
+  exit 1
+fi
+
+# Set the database path and backup destination based on LOCAL_DB value
+if [ "$LOCAL_DB" = true ]; then
+    DB_PATH="/Users/donov/databases/nkode.db"
+    BACKUP_DIR="/var/tmp"
+else
+    DB_PATH="//remote/path/to/db"
+    BACKUP_DIR="/remote/path/to/backup/dir"
+fi
+
+BACKUP_NAME="backup_nkode_$(date +'%Y%m%d%H%M%S').tar.gz"
+
+# Check if the database file exists
+if [ ! -f "$DB_PATH" ]; then
+    echo "Error: Database file not found at $DB_PATH"
+    exit 1
+fi
+
+# Perform a WAL checkpoint to flush the WAL file to the main DB file
+echo "Checkpointing WAL..."
+sqlite3 "$DB_PATH" "PRAGMA wal_checkpoint(FULL);"
+if [ $? -ne 0 ]; then
+    echo "Error: Failed to checkpoint WAL"
+    exit 1
+fi
+
+# Check if related files (.wal, .shm) exist
+WAL_FILE="${DB_PATH}-wal"
+SHM_FILE="${DB_PATH}-shm"
+
+# Create a list of files to back up (main DB, WAL, and SHM if they exist)
+FILES_TO_BACKUP=("$DB_PATH")
+if [ -f "$WAL_FILE" ]; then
+    FILES_TO_BACKUP+=("$WAL_FILE")
+fi
+if [ -f "$SHM_FILE" ]; then
+    FILES_TO_BACKUP+=("$SHM_FILE")
+fi
+
+# Create a tar.gz archive of the database and related files
+echo "Creating backup..."
+tar -czf "$BACKUP_DIR/$BACKUP_NAME" "${FILES_TO_BACKUP[@]}"
+if [ $? -eq 0 ]; then
+    echo "Backup successful: $BACKUP_DIR/$BACKUP_NAME"
+else
+    echo "Error: Backup failed"
+    exit 1
+fi
+
+# Upload backup to S3
+aws s3 cp "$BACKUP_DIR/$BACKUP_NAME" s3://nkode-db-backup
+if [ $? -eq 0 ]; then
+    echo "Backup uploaded to S3 successfully."
+else
+    echo "Error: Failed to upload backup to S3."
+    exit 1
+fi