Add compile_commands.json entries for headers

* Add headers to the HEADERS file set
* Verify the HEADERS file set
  * This property will generate a translation unit for each header and check if it can be compiled
  * This in turn will generate entries for these translation units
* Raise minimum CMake version to 3.24.0 for property VERIFY_INTERFACE_HEADER_SETS

Signed-off-by: Martin Stump <martin.stump@mercedes-benz.com>

.cmake-format

@@ -47,13 +47,15 @@ additional_commands:
       PROPERTIES: "*"
       TEST_LIST: "*"
       DISCOVERY_TIMEOUT: "*"
-  setup_target_for_coverage_gcovr_html:
+  target_sources:
+    pargs: 1
     kwargs:
-      BASE_DIRECTORY: "*"
-      EXCLUDE: "*"
-      EXECUTABLE: "*"
-      EXECUTABLE_ARGS: "*"
-      DEPENDENCIES: "*"
+      INTERFACE:
+        kwargs:
+          FILE_SET: 1
+          TYPE: 1
+          BASE_DIRS: "*"
+          FILES: "*"
 always_wrap: []
 enable_sort: true
 autosort: false

CMakeLists.txt

@@ -9,7 +9,7 @@
 # SPDX-License-Identifier: EPL-2.0
 ################################################################################
 
-cmake_minimum_required(VERSION 3.15.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.24.0 FATAL_ERROR)
 
 # Add the custom CMake modules to CMake's module path
 list(PREPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
@@ -75,12 +75,6 @@ CPMAddPackage(
 )
 
 # Add library
-file(
-  GLOB_RECURSE HEADERS
-  RELATIVE ${PROJECT_SOURCE_DIR}/include
-  CONFIGURE_DEPENDS "*.h"
-)
-
 add_library(MantleAPI INTERFACE)
 add_library(MantleAPI::MantleAPI ALIAS MantleAPI)
 
@@ -95,6 +89,16 @@ target_include_directories(
 
 target_compile_features(MantleAPI INTERFACE cxx_std_17)
 
+file(GLOB_RECURSE HEADERS CONFIGURE_DEPENDS "include/**/*.h")
+target_sources(
+  MantleAPI
+  INTERFACE FILE_SET HEADERS
+            TYPE HEADERS
+            BASE_DIRS $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
+            FILES ${HEADERS}
+)
+set_target_properties(MantleAPI PROPERTIES VERIFY_INTERFACE_HEADER_SETS ON)
+
 # Configure export
 include(CMakePackageConfigHelpers)
 configure_package_config_file(
@@ -111,8 +115,11 @@ write_basic_package_version_file(
 
 # Configure install
 if(MantleAPI_INSTALL)
-  install(DIRECTORY include/ TYPE INCLUDE)
-  install(TARGETS MantleAPI EXPORT MantleAPITargets)
+  install(
+    TARGETS MantleAPI
+    EXPORT MantleAPITargets
+    FILE_SET HEADERS
+  )
 
   install(
     EXPORT MantleAPITargets