Merge branch 'bugfix/cmake_component_names' into 'master'

CMake: Component name related bugfixes

See merge request espressif/esp-idf!5921

docs/en/api-guides/build-system.rst

@@ -1130,7 +1130,8 @@ For example, to get the Python interpreter used for the build:
   message(STATUS "The Python intepreter is: ${python}")
 
   - BUILD_DIR - build directory; set from ``idf_build_process`` BUILD_DIR argument
-  - BUILD_COMPONENTS - list of components (more specifically, component aliases) included in the build; set by ``idf_build_process``
+  - BUILD_COMPONENTS - list of components included in the build; set by ``idf_build_process``
+  - BUILD_COMPONENT_ALIASES - list of library alias of components included in the build; set by ``idf_build_process``
   - C_COMPILE_OPTIONS - compile options applied to all components' C source files
   - COMPILE_OPTIONS - compile options applied to all components' source files, regardless of it being C or C++
   - COMPILE_DEFINITIONS - compile definitions applied to all component source files

tools/cmake/build.cmake

@@ -220,6 +220,24 @@ function(__build_expand_requirements component_target)
     idf_build_get_property(build_component_targets __BUILD_COMPONENT_TARGETS)
     if(NOT component_target IN_LIST build_component_targets)
         idf_build_set_property(__BUILD_COMPONENT_TARGETS ${component_target} APPEND)
+
+        __component_get_property(component_lib ${component_target} COMPONENT_LIB)
+        idf_build_set_property(__BUILD_COMPONENTS ${component_lib} APPEND)
+
+        idf_build_get_property(prefix __PREFIX)
+        __component_get_property(component_prefix ${component_target} __PREFIX)
+
+        __component_get_property(component_alias ${component_target} COMPONENT_ALIAS)
+
+        idf_build_set_property(BUILD_COMPONENT_ALIASES ${component_alias} APPEND)
+
+        # Only put in the prefix in the name if it is not the default one
+        if(component_prefix STREQUAL prefix)
+            __component_get_property(component_name ${component_target} COMPONENT_NAME)
+            idf_build_set_property(BUILD_COMPONENTS ${component_name} APPEND)
+        else()
+            idf_build_set_property(BUILD_COMPONENTS ${component_alias} APPEND)
+        endif()
     endif()
 endfunction()
 

tools/cmake/component.cmake

@@ -56,13 +56,8 @@ function(__component_get_target var name_or_alias)
         foreach(component_target ${component_targets})
             __component_get_property(_component_name ${component_target} COMPONENT_NAME)
             if(name_or_alias STREQUAL _component_name)
-                # There should only be one component of the same name
-                if(NOT target)
-                    set(target ${component_target})
-                else()
-                    message(FATAL_ERROR "Multiple components with name '${name_or_alias}' found.")
-                    return()
-                endif()
+                set(target ${component_target})
+                break()
             endif()
         endforeach()
         set(${var} ${target} PARENT_SCOPE)
@@ -191,6 +186,7 @@ function(__component_add component_dir prefix)
     __component_set_property(${component_target} COMPONENT_NAME ${component_name})
     __component_set_property(${component_target} COMPONENT_DIR ${component_dir})
     __component_set_property(${component_target} COMPONENT_ALIAS ${component_alias})
+
     __component_set_property(${component_target} __PREFIX ${prefix})
 
     # Set Kconfig related properties on the component
@@ -482,10 +478,6 @@ function(idf_component_register)
     # Set dependencies
     __component_set_all_dependencies()
 
-    # Add the component to built components
-    idf_build_set_property(__BUILD_COMPONENTS ${component_lib} APPEND)
-    idf_build_set_property(BUILD_COMPONENTS ${component_alias} APPEND)
-
     # Make the COMPONENT_LIB variable available in the component CMakeLists.txt
     set(COMPONENT_LIB ${component_lib} PARENT_SCOPE)
     # COMPONENT_TARGET is deprecated but is made available with same function

tools/cmake/project.cmake

@@ -353,13 +353,16 @@ macro(project project_name)
     # so that it treats components equally.
     #
     # This behavior should only be when user did not set REQUIRES/PRIV_REQUIRES manually.
-    idf_build_get_property(build_components BUILD_COMPONENTS)
+    idf_build_get_property(build_components BUILD_COMPONENT_ALIASES)
     if(idf::main IN_LIST build_components)
         __component_get_target(main_target idf::main)
         __component_get_property(reqs ${main_target} REQUIRES)
         __component_get_property(priv_reqs ${main_target} PRIV_REQUIRES)
         idf_build_get_property(common_reqs __COMPONENT_REQUIRES_COMMON)
         if(reqs STREQUAL common_reqs AND NOT priv_reqs) #if user has not set any requirements
+            if(test_components)
+                list(REMOVE_ITEM build_components ${test_components})
+            endif()
             list(REMOVE_ITEM build_components idf::main)
             __component_get_property(lib ${main_target} COMPONENT_LIB)
             set_property(TARGET ${lib} APPEND PROPERTY INTERFACE_LINK_LIBRARIES "${build_components}")
@@ -392,7 +395,7 @@ macro(project project_name)
         target_link_libraries(${project_elf} "-Wl,--no-whole-archive")
     endif()
 
-    idf_build_get_property(build_components BUILD_COMPONENTS)
+    idf_build_get_property(build_components BUILD_COMPONENT_ALIASES)
     if(test_components)
         list(REMOVE_ITEM build_components ${test_components})
     endif()