test(cmakev2): Enable CI tests for component manager for cmakev2

This commit adapts the component manager build tests for cmakev2 and
enables them for CI test runs.

.gitlab/ci/build.yml

@@ -272,6 +272,7 @@ pytest_buildv2_system:
       --ignore-result-files ${KNOWN_FAILURE_CASES_FILE_NAME}
       --
       test_non_default_target.py
+      test_component_manager.py
 
 pytest_build_system_macos:
   extends:

tools/test_build_system/buildv2_test_app/CMakeLists.txt

@@ -9,3 +9,16 @@ include($ENV{IDF_PATH}/tools/cmakev2/idf.cmake)
 project(build_test_app C CXX ASM)
 
 idf_project_default()
+
+# When doing idf.py add-dependency, the component manager
+# expects the tools/cmake/project.cmake file to be included
+# in the project-level CMakeLists.txt file. If it does not
+# find it, it assumes that that the project-root directory
+# is a component and crates a manifest in the project-root
+# directory. Hence, as a workaround, we trick the component
+# manager by including the tools/cmake/project.cmake file
+# but return early.
+# TODO: Remove this workaround (IDF-14072)
+return()
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)

tools/test_build_system/test_component_manager.py

@@ -4,6 +4,7 @@ import json
 import os.path
 from pathlib import Path
 
+import pytest
 from test_build_system_helpers import IdfPyFunc
 from test_build_system_helpers import replace_in_file
 
@@ -158,6 +159,9 @@ class TestOptionalDependencyWithKconfig:
         )
         assert 'Missing required kconfig option after retry.' in res.stderr
 
+    @pytest.mark.buildv2_skip(
+        'cmakev2 needs explicit REQUIRES for EXTRA_COMPONENT_DIRS as no special handling of the main component occurs'
+    )
     def test_kconfig_in_transitive_dependency(self, idf_py: IdfPyFunc, test_app_copy: Path) -> None:
         idf_py('create-component', 'foo')
         (test_app_copy / 'foo' / 'idf_component.yml').write_text("""