import DB z druhe instance

scripts/export_ems_db.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+# Export databáze EMS z lokálního Docker Compose (služba db musí běžet).
+#
+# Použití (z kořene repa, kde je docker-compose.yml a .env):
+#   ./scripts/export_ems_db.sh
+#   ./scripts/export_ems_db.sh ~/zálohy/ems.dump
+#
+# Výstup: pg_dump -Fc (custom format) – vhodné pro pg_restore na server.
+# Volitelně: COMPOSE_FILE, ENV_FILE (cesty k compose / .env).
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+cd "$REPO_ROOT"
+
+COMPOSE_FILE="${COMPOSE_FILE:-docker-compose.yml}"
+ENV_FILE="${ENV_FILE:-.env}"
+
+if [[ ! -f "$COMPOSE_FILE" ]]; then
+  echo "ERROR: compose file not found: $COMPOSE_FILE" >&2
+  exit 1
+fi
+
+if [[ -f "$ENV_FILE" ]]; then
+  set -a
+  # shellcheck disable=SC1090
+  source "$ENV_FILE"
+  set +a
+else
+  echo "WARN: $ENV_FILE missing – DB_USER / DB_PASSWORD musí být v prostředí" >&2
+fi
+
+: "${DB_USER:?Set DB_USER in .env or environment}"
+: "${DB_PASSWORD:?Set DB_PASSWORD in .env or environment}"
+
+OUT="${1:-./ems_backup_$(date +%Y%m%d_%H%M%S).dump}"
+OUT="$(cd "$(dirname "$OUT")" && pwd)/$(basename "$OUT")"
+
+if ! docker compose -f "$COMPOSE_FILE" ps --status running -q db | grep -q .; then
+  echo "ERROR: služba db neběží. Spusť: docker compose -f $COMPOSE_FILE up -d db" >&2
+  exit 1
+fi
+
+echo "Exportuji ems -> $OUT"
+docker compose -f "$COMPOSE_FILE" exec -T \
+  -e "PGPASSWORD=${DB_PASSWORD}" \
+  db \
+  pg_dump -U "$DB_USER" -d ems -Fc --no-owner --no-acl -f /tmp/ems_export.dump
+
+docker compose -f "$COMPOSE_FILE" cp "db:/tmp/ems_export.dump" "$OUT"
+docker compose -f "$COMPOSE_FILE" exec -T db rm -f /tmp/ems_export.dump
+
+echo "Hotovo: $OUT"
+echo "Na server: scp \"$OUT\" user@server:/tmp/ems.dump"