[i706] CMake + option HAVE_EXOTIC to test-cover examples that require exotic Py modules ()

Merging branch 'i706'  into 'main'.

See merge request !1880

.gitlab-ci.yml

@@ -22,7 +22,7 @@ native_Debian_clang:
     - env
     - mkdir build
     - cd build
-    - time cmake .. -GNinja -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DBA_PY_PACKAGE=ON -DCMAKE_PREFIX_PATH="$PYPLAT;$QTCMAKE" -DZERO_TOLERANCE=ON -DDEVELOPER_CHECKS=ON
+    - time cmake .. -GNinja -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DBA_PY_PACKAGE=ON -DCMAKE_PREFIX_PATH="$PYPLAT;$QTCMAKE" -DZERO_TOLERANCE=ON -DDEVELOPER_CHECKS=ON -DHAVE_EXOTIC=ON
     - time ninja
     - time xvfb-run -a ctest -j16 --output-on-failure
     - time ninja package_source
@@ -66,7 +66,7 @@ mac_x64:
     - env
     - mkdir build
     - cd build
-    - cmake .. -DCMAKE_PREFIX_PATH="$OPTDIR;$PYPLAT;$QTDIR/lib/cmake" -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DBA_APPLE_BUNDLE=ON -DCMAKE_OSX_DEPLOYMENT_TARGET=11 -DCMAKE_INSTALL_PREFIX=/tmp/ba -DBA_PY_PACKAGE=ON
+    - cmake .. -DCMAKE_PREFIX_PATH="$OPTDIR;$PYPLAT;$QTDIR/lib/cmake" -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DBA_APPLE_BUNDLE=ON -DCMAKE_OSX_DEPLOYMENT_TARGET=11 -DCMAKE_INSTALL_PREFIX=/tmp/ba -DBA_PY_PACKAGE=ON -DHAVE_EXOTIC=ON
     - make -j$NPROC
     - ctest -j3 --output-on-failure
     - zsh var/mk_pypack_macos.zsh
@@ -131,7 +131,7 @@ windows:
     - pwd
     # configure, make, test, pack
     - cmake --version
-    - cmake -G "Ninja" -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="$OPT_DIR;$PY_PLATFORM_DIR;$QTCMake_DIR" -DCMAKE_INCLUDE_PATH="$BOOST_INCLUDE_DIR" -DCMAKE_LIBRARY_PATH="$BOOST_LIB_DIR" -DBA_PY_PACKAGE=ON -DCMAKE_C_COMPILER="cl.exe" -DCMAKE_CXX_COMPILER="cl.exe" -B. ..
+    - cmake -G "Ninja" -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="$OPT_DIR;$PY_PLATFORM_DIR;$QTCMake_DIR" -DCMAKE_INCLUDE_PATH="$BOOST_INCLUDE_DIR" -DCMAKE_LIBRARY_PATH="$BOOST_LIB_DIR" -DBA_PY_PACKAGE=ON -DCMAKE_C_COMPILER="cl.exe" -DCMAKE_CXX_COMPILER="cl.exe" -DHAVE_EXOTIC=ON -B. ..
     - pwd
     - if($CI_PIPELINE_SOURCE -eq "schedule") { cmake --build . --target clean; echo "redundant target purge done" }
     - cmake --build . -j20 --config Release

CMakeLists.txt

@@ -36,6 +36,7 @@ option(BORNAGAIN_PYTHON "Build with Python support" ON)
 option(BA_GUI "Build a graphical user interface" ON)
 option(BA_TIFF_SUPPORT "Tiff files read/write support" ON)
 option(BA_TESTS "Build tests" ON)
+option(HAVE_EXOTIC "Build tests also for examples that require exotic Python modules" OFF)
 
 # options that are off by default (switch on for additional functionality)
 option(CONFIGURE_BINDINGS "Generate python bindings during build (requires swig)" OFF)
@@ -126,7 +127,7 @@ if(BA_TESTS)
        # => 'make check' is an alias for 'ctest'
     add_custom_target(fullcheck COMMAND ${CMAKE_CTEST_COMMAND})
        # => 'make check' is an alias for 'ctest'
-   endif()
+endif()
 
 
 ### Operating system

Tests/Examples/CMakeLists.txt

@@ -96,7 +96,9 @@ endfunction()
 #  Test collection
 ####################################################################################################
 
-run_plotless(bayesian/likelihood_sampling)
+if (HAVE_EXOTIC)
+    run_plotless(bayesian/likelihood_sampling)
+endif()
 
 test_example(ff/Bipyramid4 2e-10)
 test_example(ff/Box 2e-10)

cmake/multipython/PyDependences.cmake

@@ -24,7 +24,10 @@ message(STATUS "Searching required Python packages...")
 set(py_packages "numpy;matplotlib")
 if (BA_TESTS)
     # Python packages needed for tests
-    list(APPEND py_packages "scipy;lmfit;emcee;tqdm;corner")
+    list(APPEND py_packages "scipy;lmfit")
+    if (HAVE_EXOTIC)
+        list(APPEND py_packages "emcee;tqdm;corner")
+    endif()
 endif()
 if (BA_PY_PACKAGE)
     # Python pip is required for making the wheel