Workaround removal of Python virtualenv in Actions runner 20240929.1. (…

…#950)

.github/workflows/windows.yml

@@ -231,6 +231,16 @@ jobs:
  with:
  python-version: '3.11.4'
 
+ # virtualenv is no longer included as of 20240929.1 runner so
+ # install it ourselves. See
+ # https://github.com/actions/runner-images/issues/10749.
+ #
+ # Note that it is the builds of sdist and wheel that require virtualenv
+ # not the explicit dependencies of pyktx.
+ - name: Install Python virtualenv
+ if: matrix.options.py == 'ON' && matrix.check_mkvk != 'ONLY'
+ run: pip install virtualenv
+
  - name: Init CTS submodule
  if: matrix.options.tools_cts =='ON'
  run:

interface/python_binding/CMakeLists.txt

@@ -88,6 +88,8 @@ add_custom_command(
  LIBKTX_INCLUDE_DIR=${CMAKE_SOURCE_DIR}/include
  LIBKTX_LIB_DIR=${LIBKTX_LIB_DIR}
  LIBKTX_VERSION=${KTX_VERSION_NORMALIZED}
+ # Bulding sdist requires a virtual env. I have not found a
+ # a way via find_package to ensure venv support is installed.
  ${PYTHON_EXECUTABLE} -m build --sdist --outdir ${DIST_DIR}
  WORKING_DIRECTORY
  ${SOURCE_DIR}
@@ -103,6 +105,7 @@ add_custom_command(
  LIBKTX_INCLUDE_DIR=${CMAKE_SOURCE_DIR}/include
  LIBKTX_LIB_DIR=${LIBKTX_LIB_DIR}
  LIBKTX_VERSION=${KTX_VERSION_NORMALIZED}
+ # Ditto with sdist venv comment.
  ${PYTHON_EXECUTABLE} -m build --wheel --outdir ${DIST_DIR}
  WORKING_DIRECTORY
  ${SOURCE_DIR}