add version updating via cmake

Author: scotthart

google/cloud/bigquery_unified/CMakeLists.txt

@@ -22,6 +22,10 @@ find_package(google_cloud_cpp_bigquery REQUIRED)
 find_package(google_cloud_cpp_bigquerycontrol REQUIRED)
 find_package(Arrow REQUIRED)
 
+# Generate the version information from the CMake values.
+configure_file(internal/version_info.h.in
+               ${CMAKE_CURRENT_SOURCE_DIR}/internal/version_info.h)
+
 function (bigquery_unified_library library_name library_alias)
     cmake_parse_arguments(_opt "EXPERIMENTAL;TRANSITION;INSTALL" "INITIAL_YEAR"
                           "LIBRARY_FILES;DEPS;PKGCONFIG_DEPS" ${ARGN})

google/cloud/bigquery_unified/internal/version_info.h.in

@@ -0,0 +1,26 @@
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef GOOGLE_CLOUD_CPP_BIGQUERY_GOOGLE_CLOUD_BIGQUERY_UNIFIED_INTERNAL_VERSION_INFO_H
+#define GOOGLE_CLOUD_CPP_BIGQUERY_GOOGLE_CLOUD_BIGQUERY_UNIFIED_INTERNAL_VERSION_INFO_H
+
+// NOLINTNEXTLINE(modernize-macro-to-enum)
+#define GOOGLE_CLOUD_CPP_BIGQUERY_VERSION_MAJOR @PROJECT_VERSION_MAJOR@
+// NOLINTNEXTLINE(modernize-macro-to-enum)
+#define GOOGLE_CLOUD_CPP_BIGQUERY_VERSION_MINOR @PROJECT_VERSION_MINOR@
+// NOLINTNEXTLINE(modernize-macro-to-enum)
+#define GOOGLE_CLOUD_CPP_BIGQUERY_VERSION_PATCH @PROJECT_VERSION_PATCH@
+#define GOOGLE_CLOUD_CPP_BIGQUERY_VERSION_PRE_RELEASE "@PROJECT_VERSION_PRE_RELEASE@"
+
+#endif  // GOOGLE_CLOUD_CPP_BIGQUERY_GOOGLE_CLOUD_BIGQUERY_UNIFIED_INTERNAL_VERSION_INFO_H