cmake: examples management cleanup

CMakeLists.txt

@@ -240,8 +240,11 @@ include(dotnet)
 
 # Since samples mix all languages we must parse them once we have included all
 # <language>.cmake files
-if(BUILD_SAMPLES)
-  foreach(SAMPLES IN ITEMS algorithms graph linear_solver constraint_solver sat)
-    add_subdirectory(ortools/${SAMPLES}/samples)
-  endforeach()
-endif()
+foreach(SAMPLES IN ITEMS algorithms graph linear_solver constraint_solver sat)
+  add_subdirectory(ortools/${SAMPLES}/samples)
+endforeach()
+
+# Same for examples/contrib
+foreach(EXAMPLES IN ITEMS contrib cpp python java dotnet)
+  add_subdirectory(examples/${EXAMPLES})
+endforeach()

cmake/cpp.cmake

@@ -304,14 +304,8 @@ foreach(SUBPROJECT IN ITEMS
   add_dependencies(${PROJECT_NAME} ${PROJECT_NAME}::${SUBPROJECT})
 endforeach()
 
-# Examples
-if(BUILD_EXAMPLES)
-  add_subdirectory(examples/cpp)
-endif()
-
 # Install rules
 include(GNUInstallDirs)
-
 include(GenerateExportHeader)
 GENERATE_EXPORT_HEADER(${PROJECT_NAME})
 install(FILES ${PROJECT_BINARY_DIR}/${PROJECT_NAME}_export.h

cmake/dotnet.cmake

@@ -199,7 +199,3 @@ add_custom_target(dotnet_package ALL
     dotnet/packages
   WORKING_DIRECTORY dotnet
   )
-
-if(BUILD_EXAMPLES)
-  #add_subdirectory(examples/dotnet)
-endif()

cmake/java.cmake

@@ -213,7 +213,3 @@ if(BUILD_TESTING)
     COMMAND ${MAVEN_EXECUTABLE} exec:java -Dexec.mainClass=com.google.ortools.Test
     WORKING_DIRECTORY ${PROJECT_BINARY_DIR}/java/${JAVA_TEST_PROJECT})
 endif()
-
-if(BUILD_EXAMPLES)
-  #add_subdirectory(examples/java)
-endif()

cmake/python.cmake

@@ -184,8 +184,3 @@ if(BUILD_TESTING)
   add_test(NAME pytest_venv
     COMMAND ${VENV_Python_EXECUTABLE} ${VENV_DIR}/test.py)
 endif()
-
-if(BUILD_EXAMPLES)
-  #add_subdirectory(examples/python)
-  #add_subdirectory(examples/notebook)
-endif()

examples/contrib/CMakeLists.txt

@@ -1,4 +1,4 @@
-if (NOT BUILD_EXAMPLES)
+if(NOT BUILD_EXAMPLES)
 	return()
 endif()
 
@@ -6,23 +6,18 @@ if(BUILD_CXX_EXAMPLES)
 
 endif()
 
-if(BUILD_PYTHON)
+if(BUILD_PYTHON_EXAMPLES)
   foreach(TEST IN ITEMS
-      hidato_table
-      integer_programming
-      knapsack
-      linear_programming
-      pyflow_example
-      tsp
-      vrp
-      vrpgs
-      cvrp
-      cvrptw)
+      assignment
+      costas_array
+      hidato
+      knapsack_cp
+      knapsack_mip
+      )
     add_test(py${TEST}_venv ${VENV_BIN_DIR}/python ${CMAKE_CURRENT_SOURCE_DIR}/${TEST}.py)
     set_tests_properties(py${TEST}_venv PROPERTIES DEPENDS build_venv)
   endforeach()
 
-  include(GNUInstallDirs)
   install(DIRECTORY .
     DESTINATION ${CMAKE_INSTALL_DATADIR}/ortools/examples/python
     FILES_MATCHING PATTERN "*.py")

examples/data/CMakeLists.txt

@@ -1,4 +1,4 @@
-if (NOT BUILD_PYTHON)
+if(NOT BUILD_PYTHON_EXAMPLES)
   return()
 endif()
 

examples/notebook/CMakeLists.txt

@@ -1,4 +1,4 @@
-if (NOT BUILD_PYTHON)
+if(NOT BUILD_PYTHON_EXAMPLES)
   return()
 endif()