test(tools): Added minimal supported cmake versions build system tests

Backport of efa75a9b60 to release/v5.5.

Adapted from the master version because of structural differences on
release/v5.5:

- The new jobs are added to .gitlab/ci/host-test.yml (where build-system
  pytest jobs live on v5.5) instead of .gitlab/ci/build.yml.
- The minimum supported cmake version is 3.16.3 on v5.5
  (cmake_minimum_required(VERSION 3.16) in tools/cmake/project.cmake),
  so the new jobs test cmake@3.16.3 instead of 3.22.1.
- The macOS template extraction from the original commit is omitted:
  v5.5 already uses .brew-macos-settings for the macOS variables, so
  the refactor would be redundant.

Co-authored-by: Cursor <cursoragent@cursor.com>

.gitlab/ci/host-test.yml

@@ -461,6 +461,29 @@ test_pytest_macos:
       --junitxml ${CI_PROJECT_DIR}/XUNIT_RESULT.xml
       --ignore-result-files ${KNOWN_FAILURE_CASES_FILE_NAME}
 
+.test_build_system_minimal_cmake_template:
+  extends: .test_build_system_template
+  variables:
+    INSTALL_EXTRA_TOOLS: cmake@3.16.3
+  script:
+    - MINIMAL_SUPPORTED_CMAKE_VERSION=$(echo "${INSTALL_EXTRA_TOOLS}" | sed -n 's/.*cmake@\([0-9.]*\).*/\1/p')
+    - export PATH=$(echo "$PATH" | sed -E "s|/tools/cmake/[0-9.]+|/tools/cmake/${MINIMAL_SUPPORTED_CMAKE_VERSION}|")
+    - ACTUAL_CMAKE_VERSION=$(cmake --version | head -n1 | awk '{print $3}')
+    - |
+      if [ "${ACTUAL_CMAKE_VERSION}" != "${MINIMAL_SUPPORTED_CMAKE_VERSION}" ]; then
+        echo "ERROR: Wrong minimal CMake version! Detected: ${ACTUAL_CMAKE_VERSION}, but should be: ${MINIMAL_SUPPORTED_CMAKE_VERSION}"
+        exit 1
+      fi
+    - ${IDF_PATH}/tools/ci/test_configure_ci_environment.sh
+    - cd ${IDF_PATH}/tools/test_build_system
+    - run_cmd idf-ci gitlab download-known-failure-cases-file ${KNOWN_FAILURE_CASES_FILE_NAME}
+    - pytest
+      -k cmake
+      --cleanup-idf-copy
+      --work-dir ${CI_PROJECT_DIR}/test_build_system
+      --junitxml ${CI_PROJECT_DIR}/XUNIT_RESULT.xml
+      --ignore-result-files ${KNOWN_FAILURE_CASES_FILE_NAME}
+
 pytest_build_system:
   extends: .test_build_system_template
   parallel: 3
@@ -471,3 +494,14 @@ pytest_build_system_macos:
     - .brew-macos-settings
     - .rules:build:macos
   parallel: 3
+
+pytest_build_system_minimal_cmake:
+  extends: .test_build_system_minimal_cmake_template
+
+pytest_build_system_macos_minimal_cmake:
+  extends:
+    - .test_build_system_minimal_cmake_template
+    - .brew-macos-settings
+    - .rules:build:macos
+  variables:
+    INSTALL_EXTRA_TOOLS: ninja cmake@3.16.3

.gitlab/ci/test-win.yml

@@ -106,3 +106,37 @@ pytest_build_system_win:
     reports:
       junit: XUNIT_RESULT.xml
     when: always
+
+pytest_build_system_win_minimal_cmake:
+  extends:
+    - .test_build_system_template_win
+    - .rules:labels:windows_pytest_build_system
+  needs:
+    - job: manual_gate
+      optional: true
+  tags: [windows-build, brew]
+  artifacts:
+    paths:
+      - XUNIT_RESULT.xml
+      - test_build_system
+    expire_in: 2 days
+    reports:
+      junit: XUNIT_RESULT.xml
+    when: always
+  variables:
+    MINIMAL_CMAKE_VERSION: "3.16.3"
+  script:
+    - .\install.ps1 --enable-ci
+    - . .\export.ps1
+    - python ${IDF_PATH}\tools\idf_tools.py install cmake@${MINIMAL_CMAKE_VERSION}
+    - $Env:PATH = "$Env:USERPROFILE\.espressif\tools\cmake\${MINIMAL_CMAKE_VERSION}\bin;$Env:PATH"
+    - |
+      $actualVersion = (& cmake --version).Split()[2]
+      if ($actualVersion -ne $Env:MINIMAL_CMAKE_VERSION) {
+        Write-Error "ERROR: Wrong CMake version! Detected: $actualVersion, but expected: $Env:MINIMAL_CMAKE_VERSION"
+        exit 1
+      }
+    - python "${SUBMODULE_FETCH_TOOL}" -s "all"
+    - cd ${IDF_PATH}\tools\test_build_system
+    - idf-ci gitlab download-known-failure-cases-file ${KNOWN_FAILURE_CASES_FILE_NAME}
+    - pytest -k cmake --junitxml=${CI_PROJECT_DIR}\XUNIT_RESULT.xml --ignore-result-files ${KNOWN_FAILURE_CASES_FILE_NAME}