CMAKE_MINIMUM_REQUIRED(VERSION 3.3)

MESSAGE(STATUS "Attempting to create uninstall target for make")

#Remove all of the files listed in install_manifest.txt

SET(INSTALL_MANIFEST_PATH "${CMAKE_CURRENT_BINARY_DIR}/install_manifest.txt")

IF(NOT EXISTS ${INSTALL_MANIFEST_PATH})

MESSAGE(FATAL_ERROR "Could not find install manifest at ${CMAKE_CURRENT_BINARY_DIR}/install_manifest.txt\nThis may be because 'make install' has not been run or install_manifest.txt has been deleted")

ENDIF()

MESSAGE(STATUS "install_manifest.txt found")

FILE(STRINGS ${INSTALL_MANIFEST_PATH} FILES_TO_REMOVE)

FOREACH(FILE_TO_REMOVE ${FILES_TO_REMOVE})

IF(NOT EXISTS "${FILE_TO_REMOVE}")

MESSAGE(WARNING "Could not find file ${FILE_TO_REMOVE}")

CONTINUE()

ENDIF()

FILE(REMOVE "${FILE_TO_REMOVE}")

IF(NOT EXISTS "${FILE_TO_REMOVE}")

MESSAGE(STATUS "Successfully removed file ${FILE_TO_REMOVE}")

ELSE()

MESSAGE(FATAL_ERROR "Failed to remove file ${FILE_TO_REMOVE}.")

ENDIF()

ENDFOREACH(FILE_TO_REMOVE)

# Remove empty directories created during installation

# Checks if a directory is empty and saves the result in out_var

FUNCTION(IS_EMPTY_DIR OUT_VAR DIR)

FILE(GLOB FILES "${DIR}/*")

LIST(LENGTH FILES NUM_FILES)

IF(NUM_FILES EQUAL 0)

SET(${OUT_VAR} TRUE PARENT_SCOPE)

ELSE()

SET(${OUT_VAR} FALSE PARENT_SCOPE)

ENDIF()

ENDFUNCTION()

# Recursively append all parent directories of path to out_var

FUNCTION(PARENT_DIRECTORIES OUT_VAR PATH)

GET_FILENAME_COMPONENT(PARENT "${PATH}" DIRECTORY)

IF(PARENT AND NOT PARENT STREQUAL PATH AND NOT PARENT IN_LIST ${OUT_VAR})

LIST(APPEND ${OUT_VAR} ${PARENT})

PARENT_DIRECTORIES(${OUT_VAR} "${PARENT}")

ENDIF()

SET(${OUT_VAR} ${${OUT_VAR}} PARENT_SCOPE)

ENDFUNCTION()

# Removes all empty parent directories of the given files

FUNCTION(REMOVE_EMPTY_DIRECTORIES FILES)

SET(DIRECTORIES)

FOREACH(FILE_TO_REMOVE ${FILES})

PARENT_DIRECTORIES(DIRECTORIES "${FILE_TO_REMOVE}")

endforeach()

LIST(REMOVE_DUPLICATES DIRECTORIES)

# Sort and reverse so we remove subdirectories first

LIST(SORT DIRECTORIES)

LIST(REVERSE DIRECTORIES)

FOREACH(DIR ${DIRECTORIES})

# Skip directories not inside the install prefix

IF(NOT (EXISTS "${DIR}" AND DIR MATCHES "^${CMAKE_INSTALL_PREFIX}/"))

CONTINUE()

ENDIF()

IS_EMPTY_DIR(DIR_EMPTY "${DIR}")

IF(DIR_EMPTY)

MESSAGE(STATUS "Removing empty directory ${DIR}")

FILE(REMOVE_RECURSE "${DIR}")

ELSEIF()

MESSAGE(STATUS "Skipping non-empty directory ${DIR}")

ENDIF()

ENDFOREACH()

ENDFUNCTION()

REMOVE_EMPTY_DIRECTORIES("${FILES_TO_REMOVE}")