build & config: Add IDF_COMPONENT_MANAGER build property

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

@@ -1179,6 +1179,7 @@ These are properties that describe the build. Values of build properties can be
 - EXECUTABLE - project executable; set by call to ``idf_build_executable``
 - EXECUTABLE_NAME - name of project executable without extension; set by call to ``idf_build_executable``
 - EXECUTABLE_DIR - path containing the output executable
+- IDF_COMPONENT_MANAGER - the component manager is enabled by default, but if this property is set to ``0`` it was disabled by the IDF_COMPONENT_MANAGER environment variable
 - IDF_PATH - ESP-IDF path; set from IDF_PATH environment variable, if not, inferred from the location of ``idf.cmake``
 - IDF_TARGET - target chip for the build; set from the required target argument for ``idf_build_process``
 - IDF_VER - ESP-IDF version; set from either a version file or the Git revision of the IDF_PATH repository

tools/cmake/build.cmake

@@ -138,7 +138,7 @@ function(__build_init idf_path)
 
     idf_build_set_property(__PREFIX idf)
     idf_build_set_property(__CHECK_PYTHON 1)
-    idf_build_set_property(__ENABLE_COMPONENT_MANAGER 0)
+    idf_build_set_property(IDF_COMPONENT_MANAGER 0)
 
     __build_set_default_build_specifications()
 
@@ -432,8 +432,8 @@ macro(idf_build_process target)
     endif()
 
     # Call for component manager to download dependencies for all components
-    idf_build_get_property(enable_component_manager __ENABLE_COMPONENT_MANAGER)
-    if(enable_component_manager)
+    idf_build_get_property(idf_component_manager IDF_COMPONENT_MANAGER)
+    if(idf_component_manager EQUAL 1)
         idf_build_get_property(build_dir BUILD_DIR)
         set(managed_components_list_file ${build_dir}/managed_components_list.temp.cmake)
         set(local_components_list_file ${build_dir}/local_components_list.temp.yml)

tools/cmake/component.cmake

@@ -224,9 +224,8 @@ function(__component_get_requirements)
         message(FATAL_ERROR "${error}")
     endif()
 
-    idf_build_get_property(enable_component_manager __ENABLE_COMPONENT_MANAGER)
-    if(enable_component_manager)
-        # Call for component manager once again to inject dependencies
+    idf_build_get_property(idf_component_manager IDF_COMPONENT_MANAGER)
+    if(idf_component_manager EQUAL 1)
         idf_build_get_property(python PYTHON)
         execute_process(COMMAND ${python}
             "-m"

tools/cmake/project.cmake

@@ -41,7 +41,7 @@ endif()
 
 # Enable the component manager for regular projects if not explicitly disabled.
 if(NOT "$ENV{IDF_COMPONENT_MANAGER}" EQUAL "0")
-    idf_build_set_property(__ENABLE_COMPONENT_MANAGER 1)
+    idf_build_set_property(IDF_COMPONENT_MANAGER 1)
 endif()
 
 #