feat: support empty components

build.ps1

@@ -5,7 +5,7 @@
 
 param(
     [switch]$clean ## clean build, wipe out all build artifacts
-    , [switch]$install ## install mandatory packages
+    , [switch]$install ## install dependencies, only
 )
 
 function Invoke-CommandLine {
@@ -43,7 +43,7 @@ function Invoke-CommandLine {
 
 function Invoke-Bootstrap {
     # Download bootstrap scripts from external repository
-    Invoke-RestMethod https://raw.githubusercontent.com/avengineers/bootstrap-installer/v1.12.0/install.ps1 | Invoke-Expression
+    Invoke-RestMethod https://raw.githubusercontent.com/avengineers/bootstrap-installer/v1.13.0/install.ps1 | Invoke-Expression
     # Execute bootstrap script
     . .\.bootstrap\bootstrap.ps1
 }

cmake/common.cmake

@@ -16,7 +16,10 @@ macro(spl_add_component component_path)
     add_subdirectory(${CMAKE_SOURCE_DIR}/${component_path})
 
     if(BUILD_KIT STREQUAL prod)
-        target_link_libraries(${LINK_TARGET_NAME} ${component_name})
+        # Only add the target link libraries ${component_name} if the library is defined.
+        if(TARGET ${component_name})
+            target_link_libraries(${LINK_TARGET_NAME} ${component_name})
+        endif()
     endif()
 endmacro()
 

tests/cmake/common.cmake/CMakeLists.txt

@@ -1,90 +1,103 @@
-# boilerplate to get CMake running
-cmake_minimum_required(VERSION 3.22.0)
-project(test-common-cmake C ASM)
-set(VARIANT mytestvariant)
-
-# ## IUT ####################################
-include(${CMAKE_CURRENT_LIST_DIR}/../../../cmake/common.cmake)
-
-# ## test: _spl_slash_to_underscore #########
-# given
-set(string_with_slashes "abc/def/ghi")
-
-# when
-_spl_slash_to_underscore(string_with_underscore ${string_with_slashes})
-
-# then
-if(NOT string_with_underscore STREQUAL "abc_def_ghi")
-    message(FATAL_ERROR "Failing Test case: string_with_slashes = ${string_with_slashes}.")
-endif()
-
-# ## test: _spl_get_absolute_path #########
-# when
-_spl_get_absolute_path(absolute_path "${PROJECT_SOURCE_DIR}/some_dir")
-
-# then
-set(expected_path tests/cmake/common.cmake/some_dir)
-string(FIND "${absolute_path}" "${expected_path}" out)
-
-if(NOT "${out}" GREATER 0)
-    message(FATAL_ERROR "Failing Test case: ${absolute_path} does not contain ${expected_path}.")
-endif()
-
-# when
-_spl_get_absolute_path(absolute_path "${PROJECT_BINARY_DIR}/some_output")
-
-# then
-set(expected_path out/test_cmake/common.cmake/some_output)
-string(FIND "${absolute_path}" "${expected_path}" out)
-
-if(NOT "${out}" GREATER 0)
-    message(FATAL_ERROR "Failing Test case: ${absolute_path} does not contain ${expected_path}.")
-endif()
-
-# ## test: spl_add_source #########
-# given
-set(source_file src/some_source_file.c)
-set(other_source_file src/some_other_source_file.c)
-
-# when
-spl_add_source(${source_file})
-spl_add_source(${other_source_file})
-
-# then
-_spl_get_absolute_path(expected_source_file "${source_file}")
-_spl_get_absolute_path(expected_other_source_file "${other_source_file}")
-_spl_get_absolute_path(unexpected_source_file "not_expected.c")
-
-if(NOT expected_source_file IN_LIST SOURCES)
-    message(FATAL_ERROR "Failing Test case: ${expected_source_file} not found inside ${SOURCES}.")
-endif()
-
-if(NOT expected_other_source_file IN_LIST SOURCES)
-    message(FATAL_ERROR "Failing Test case: ${expected_other_source_file} not found inside ${SOURCES}.")
-endif()
-
-if(unexpected_source_file IN_LIST SOURCES)
-    message(FATAL_ERROR "Failing Test case: ${unexpected_source_file} not found inside ${SOURCES}.")
-endif()
-
-#cleanup
-unset(SOURCES)
-
-# ## test: spl_add_component ###############
-
-# given
-set(some_file src/some_file.c)
-set(some_other_file src/some_other_file.c)
-
-# when
-spl_add_component(component)
-spl_add_component(some_other_component)
-set_target_properties(component PROPERTIES LINKER_LANGUAGE C)
-
-# then
-if(NOT "component" IN_LIST COMPONENT_NAMES)
-    message(FATAL_ERROR "Failing Test case: component not found inside ${COMPONENT_NAMES}.")
-endif()
-
-# ## test: _spl_create_build_info_file (tests are written in test_cmake.py)#####
-_spl_create_build_info_file()
+# boilerplate to get CMake running
+cmake_minimum_required(VERSION 3.22.0)
+project(test-common-cmake C ASM)
+set(VARIANT mytestvariant)
+
+# ## IUT ####################################
+include(${CMAKE_CURRENT_LIST_DIR}/../../../cmake/common.cmake)
+
+# ## test: _spl_slash_to_underscore #########
+# given
+set(string_with_slashes "abc/def/ghi")
+
+# when
+_spl_slash_to_underscore(string_with_underscore ${string_with_slashes})
+
+# then
+if(NOT string_with_underscore STREQUAL "abc_def_ghi")
+    message(FATAL_ERROR "Failing Test case: string_with_slashes = ${string_with_slashes}.")
+endif()
+
+# ## test: _spl_get_absolute_path #########
+# when
+_spl_get_absolute_path(absolute_path "${PROJECT_SOURCE_DIR}/some_dir")
+
+# then
+set(expected_path tests/cmake/common.cmake/some_dir)
+string(FIND "${absolute_path}" "${expected_path}" out)
+
+if(NOT "${out}" GREATER 0)
+    message(FATAL_ERROR "Failing Test case: ${absolute_path} does not contain ${expected_path}.")
+endif()
+
+# when
+_spl_get_absolute_path(absolute_path "${PROJECT_BINARY_DIR}/some_output")
+
+# then
+set(expected_path out/test_cmake/common.cmake/some_output)
+string(FIND "${absolute_path}" "${expected_path}" out)
+
+if(NOT "${out}" GREATER 0)
+    message(FATAL_ERROR "Failing Test case: ${absolute_path} does not contain ${expected_path}.")
+endif()
+
+# ## test: spl_add_source #########
+# given
+set(source_file src/some_source_file.c)
+set(other_source_file src/some_other_source_file.c)
+
+# when
+spl_add_source(${source_file})
+spl_add_source(${other_source_file})
+
+# then
+_spl_get_absolute_path(expected_source_file "${source_file}")
+_spl_get_absolute_path(expected_other_source_file "${other_source_file}")
+_spl_get_absolute_path(unexpected_source_file "not_expected.c")
+
+if(NOT expected_source_file IN_LIST SOURCES)
+    message(FATAL_ERROR "Failing Test case: ${expected_source_file} not found inside ${SOURCES}.")
+endif()
+
+if(NOT expected_other_source_file IN_LIST SOURCES)
+    message(FATAL_ERROR "Failing Test case: ${expected_other_source_file} not found inside ${SOURCES}.")
+endif()
+
+if(unexpected_source_file IN_LIST SOURCES)
+    message(FATAL_ERROR "Failing Test case: ${unexpected_source_file} not found inside ${SOURCES}.")
+endif()
+
+# cleanup
+unset(SOURCES)
+
+# ## test: spl_add_component ###############
+
+# given
+set(some_file src/some_file.c)
+set(some_other_file src/some_other_file.c)
+
+# when
+spl_add_component(component)
+spl_add_component(some_other_component)
+spl_add_component(comp_without_sources)
+set_target_properties(component PROPERTIES LINKER_LANGUAGE C)
+
+# then
+foreach(component IN ITEMS component some_other_component comp_without_sources)
+    if(NOT "${component}" IN_LIST COMPONENT_NAMES)
+        message(FATAL_ERROR "Failing Test case: ${component} not found inside ${COMPONENT_NAMES}.")
+    endif()
+
+    if(NOT TARGET ${component})
+        message(FATAL_ERROR "Failing Test case: ${component} not found as a target.")
+    endif()
+endforeach()
+
+_spl_get_absolute_path(expected_include "comp_without_sources/src")
+
+if(NOT expected_include IN_LIST target_include_directories__INCLUDES)
+    message(FATAL_ERROR "Failing Test case: ${expected_include} not found inside ${target_include_directories__INCLUDES}.")
+endif()
+
+# ## test: _spl_create_build_info_file (tests are written in test_cmake.py)#####
+_spl_create_build_info_file()

tests/cmake/common.cmake/comp_without_sources/CMakeLists.txt

@@ -0,0 +1 @@
+spl_create_component(LONG_NAME "Some component without sources")