message: cmake(android): fix non-idempotent INSTALL scripts
diff: @@ -348,9 +348,18 @@ macro(add_android_project target path)
  # put the final .apk to the OpenCV's bin folder
  add_custom_command(TARGET ${target} POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy_if_different "${android_proj_bin_dir}/bin/${target}-debug.apk" "${OpenCV_BINARY_DIR}/bin/${target}.apk")
  if(INSTALL_ANDROID_EXAMPLES AND "${target}" MATCHES "^example-")
  + get_filename_component(sample_dir "${path}" NAME)
  # apk
  install(FILES "${OpenCV_BINARY_DIR}/bin/${target}.apk" DESTINATION "samples" COMPONENT samples)
  - get_filename_component(sample_dir "${path}" NAME)
  + # clear "external" project files (need to remove files generated by 'android' tool)
  + set(external_target_files ${ANDROID_PROJECT_FILES})
  + ocv_list_add_prefix(external_target_files "\$ENV{DESTDIR}\${CMAKE_INSTALL_PREFIX}/samples/${sample_dir}/")
  + install(CODE "
  +MESSAGE(STATUS \"Cleaning generated project files from Android sample install directory: ${sample_dir}\")
  +FOREACH(f ${ANDROID_PROJECT_FILES})
  + FILE(REMOVE \"\$ENV{DESTDIR}\${CMAKE_INSTALL_PREFIX}/samples/${sample_dir}/\${f}\")
  +ENDFOREACH()
  +" COMPONENT samples)
  #java part
  list(REMOVE_ITEM android_proj_files ${ANDROID_MANIFEST_FILE})
  foreach(f ${android_proj_files} ${ANDROID_MANIFEST_FILE})
  @@ -368,11 +377,15 @@ macro(add_android_project target path)
  if(android_proj_lib_deps_commands)
  set(inst_lib_opt " --library ../../sdk/java")
  endif()
  - install(CODE "EXECUTE_PROCESS(COMMAND ${ANDROID_EXECUTABLE} --silent update project --path . --target \"${android_proj_sdk_target}\" --name \"${target}\" ${inst_lib_opt}
  + install(CODE "
  +MESSAGE(STATUS \"Fixing Android library reference for sample: ${sample_dir}\")
  +EXECUTE_PROCESS(
  + COMMAND ${ANDROID_EXECUTABLE} --silent update project --path . --target \"${android_proj_sdk_target}\" --name \"${target}\" ${inst_lib_opt}
  WORKING_DIRECTORY \"\$ENV{DESTDIR}\${CMAKE_INSTALL_PREFIX}/samples/${sample_dir}\"
  - )" COMPONENT samples)
  +)
  +" COMPONENT samples)
  # empty 'gen'
  - install(CODE "MAKE_DIRECTORY(\"\$ENV{DESTDIR}\${CMAKE_INSTALL_PREFIX}/samples/${sample_dir}/gen\")" COMPONENT samples)
  + install(CODE "FILE(MAKE_DIRECTORY \"\$ENV{DESTDIR}\${CMAKE_INSTALL_PREFIX}/samples/${sample_dir}/gen\")" COMPONENT samples)
  endif()
  endif()
  endmacro()
  