74 lines
2.1 KiB
Bash
74 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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set -euo pipefail
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ENV_FILE="${ENV_FILE:-./.env}"
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if [[ -f "$ENV_FILE" ]]; then
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set -a
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# shellcheck source=/dev/null
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. "$ENV_FILE"
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set +a
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fi
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if [[ -z "${DATABASE_URL:-}" && -z "${BACKUP_DATABASE_URL:-}" ]]; then
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echo "DATABASE_URL or BACKUP_DATABASE_URL is required."
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exit 1
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fi
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BACKUP_URL="${BACKUP_DATABASE_URL:-$DATABASE_URL}"
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extract_host() {
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local url="$1"
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sed -E 's#^[a-zA-Z][a-zA-Z0-9+.-]*://[^@/]+@([^/:?]+).*$#\1#' <<< "$url"
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}
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extract_db() {
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local url="$1"
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sed -E 's#^[a-zA-Z][a-zA-Z0-9+.-]*://[^/]+/([^?]+).*$#\1#' <<< "$url"
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}
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if [[ "${BACKUP_ENFORCE_TARGET_CHECK:-0}" == "1" ]]; then
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BACKUP_EXPECTED_HOST="${EXPECTED_BACKUP_DB_HOST:-${EXPECTED_PROD_DB_HOST:-}}"
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BACKUP_EXPECTED_NAME="${EXPECTED_BACKUP_DB_NAME:-${EXPECTED_PROD_DB_NAME:-}}"
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if [[ -z "$BACKUP_EXPECTED_HOST" || -z "$BACKUP_EXPECTED_NAME" ]]; then
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echo "BACKUP_ENFORCE_TARGET_CHECK=1 requires EXPECTED_BACKUP_DB_HOST/NAME (or EXPECTED_PROD_DB_HOST/NAME)."
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exit 1
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fi
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ACTUAL_HOST="$(extract_host "$BACKUP_URL")"
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ACTUAL_DB="$(extract_db "$BACKUP_URL")"
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if [[ "$ACTUAL_HOST" == "$BACKUP_URL" || "$ACTUAL_DB" == "$BACKUP_URL" ]]; then
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echo "Unable to parse backup database URL."
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exit 1
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fi
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if [[ "$ACTUAL_HOST" != "$BACKUP_EXPECTED_HOST" ]]; then
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echo "Backup target host mismatch. expected=$BACKUP_EXPECTED_HOST actual=$ACTUAL_HOST"
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exit 1
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fi
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if [[ "$ACTUAL_DB" != "$BACKUP_EXPECTED_NAME" ]]; then
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echo "Backup target db mismatch. expected=$BACKUP_EXPECTED_NAME actual=$ACTUAL_DB"
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exit 1
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fi
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fi
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OUT_DIR="${BACKUP_DIR:-./backups}"
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mkdir -p "$OUT_DIR"
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STAMP="$(date +%F_%H%M%S)"
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OUT_FILE="${OUT_DIR}/skymoney_${STAMP}.dump"
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OUT_BASENAME="$(basename "$OUT_FILE")"
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OUT_DIR_ABS="$(cd "$OUT_DIR" && pwd)"
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START_TS="$(date +%s)"
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pg_dump "$BACKUP_URL" -Fc -f "$OUT_FILE"
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(cd "$OUT_DIR_ABS" && sha256sum "$OUT_BASENAME" > "${OUT_BASENAME}.sha256")
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END_TS="$(date +%s)"
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RUNTIME_SEC="$((END_TS - START_TS))"
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echo "Backup written to: $OUT_FILE"
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echo "Checksum written to: ${OUT_FILE}.sha256"
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echo "Backup runtime seconds: $RUNTIME_SEC"
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