added update notice, re-running db

scripts/validate-test-db-target.sh

@@ -15,17 +15,34 @@ extract_db() {
   sed -E 's#^[a-zA-Z][a-zA-Z0-9+.-]*://[^/]+/([^?]+).*$#\1#' <<< "$url"
 }
 
+extract_host() {
+  local url="$1"
+  sed -E 's#^[a-zA-Z][a-zA-Z0-9+.-]*://[^@/]+@([^/:?]+).*$#\1#' <<< "$url"
+}
+
 TEST_DB_NAME="$(extract_db "$TEST_DATABASE_URL")"
 if [[ "$TEST_DB_NAME" == "$TEST_DATABASE_URL" || -z "$TEST_DB_NAME" ]]; then
   echo "Unable to parse TEST_DATABASE_URL database name."
   exit 1
 fi
 
+TEST_DB_HOST="$(extract_host "$TEST_DATABASE_URL")"
+if [[ "$TEST_DB_HOST" == "$TEST_DATABASE_URL" || -z "$TEST_DB_HOST" ]]; then
+  echo "Unable to parse TEST_DATABASE_URL host."
+  exit 1
+fi
+
 if [[ -n "${DATABASE_URL:-}" && "$TEST_DATABASE_URL" == "$DATABASE_URL" ]]; then
   echo "TEST_DATABASE_URL must not equal DATABASE_URL."
   exit 1
 fi
 
+if [[ "${ALLOW_TEST_DB_DOCKER_HOST:-0}" != "1" && "$TEST_DB_HOST" == "postgres" ]]; then
+  echo "TEST_DATABASE_URL host 'postgres' is not reachable from host-runner jobs."
+  echo "Use host-mapped URL (for example: postgres://...@127.0.0.1:5432/skymoney_test)."
+  exit 1
+fi
+
 IFS=',' read -r -a protected <<< "$PROTECTED_DB_NAMES"
 for name in "${protected[@]}"; do
   trimmed="$(echo "$name" | xargs)"
@@ -44,4 +61,4 @@ if [[ "$REQUIRE_TEST_DB_NAME" == "1" ]]; then
   fi
 fi
 
-echo "TEST_DATABASE_URL target check passed (db=$TEST_DB_NAME)."
+echo "TEST_DATABASE_URL target check passed (host=$TEST_DB_HOST db=$TEST_DB_NAME)."