#
# Copyright (c) Contributors to the Open 3D Engine Project.
# For complete copyright and license terms please see the LICENSE at the root of this distribution.
#
# SPDX-License-Identifier: Apache-2.0 OR MIT
#
#

cmake_policy(SET CMP0012 NEW) # new policy for the if that evaluates a boolean out of "if(NOT ${same_location})"

function(ly_copy source_file target_directory)
    cmake_path(GET source_file FILENAME target_filename)
    cmake_PATH(GET source_file EXTENSION target_filename_ext)
    cmake_path(APPEND target_file "${target_directory}" "${target_filename}")
    cmake_path(COMPARE "${source_file}" EQUAL "${target_file}" same_location)
    if(NOT ${same_location})
        file(LOCK "${target_file}.lock" GUARD FUNCTION TIMEOUT 300)
        file(SIZE "${source_file}" source_file_size)
        if(EXISTS "${target_file}")
            file(SIZE "${target_file}" target_file_size)
        else()
            set(target_file_size 0)
        endif()
        if((NOT source_file_size EQUAL target_file_size) OR "${source_file}" IS_NEWER_THAN "${target_file}")
            message(STATUS "Copying \"${source_file}\" to \"${target_directory}\"...")
            file(MAKE_DIRECTORY "${full_target_directory}")
            file(COPY "${source_file}" DESTINATION "${target_directory}" FILE_PERMISSIONS @LY_COPY_PERMISSIONS@ FOLLOW_SYMLINK_CHAIN)
            file(TOUCH_NOCREATE "${target_file}")

            # Special case, shared libraries that are copied from qt/plugins have their RPATH set to \$ORIGIN/../../lib 
            # which is the correct relative path based on the source location. But when we copy it to their subfolder, 
            # the rpath needs to be adjusted to the parent ($ORIGIN/..)
            if("${source_file}" MATCHES "qt/plugins" AND "${target_filename_ext}" STREQUAL ".so")
                file(RPATH_CHANGE FILE "${target_file}" OLD_RPATH "\$ORIGIN/../../lib" NEW_RPATH "\$ORIGIN/..")
            endif()
        endif()
    endif()    
endfunction()

@LY_COPY_COMMANDS@

file(TOUCH "@STAMP_OUTPUT_FILE@")