icinga2/cmake/InstallConfig.cmake

62 lines
2.2 KiB
CMake

# Icinga 2
# Copyright (C) 2012-2018 Icinga Development Team (https://www.icinga.com)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
# Install $src into directory $dest - usually only used for config files
#
# * similar to install() a non absolute path is prefixed with CMAKE_INSTALL_PREFIX on runtime
# * in case of CPack path with be prefixed with share/skel/
# * DESTDIR is prefixed as well
#
# also see https://cmake.org/cmake/help/latest/command/install.html
function(install_if_not_exists src dest)
if(NOT IS_ABSOLUTE "${src}")
set(src "${CMAKE_CURRENT_SOURCE_DIR}/${src}")
endif()
get_filename_component(src_name "${src}" NAME)
install(CODE "
set(dest \"${dest}\")
if (\"\${CMAKE_INSTALL_PREFIX}\" MATCHES .*/_CPack_Packages/.*)
set(dest \"share/skel/\${dest}\")
set(force_overwrite TRUE)
else()
set(force_overwrite FALSE)
endif()
if(NOT IS_ABSOLUTE \"\${dest}\")
set(dest \"\${CMAKE_INSTALL_PREFIX}/\${dest}\")
endif()
set(full_dest \"\$ENV{DESTDIR}\${dest}/${src_name}\")
if(force_overwrite OR NOT EXISTS \"\${full_dest}\")
message(STATUS \"Installing: ${src} into \${full_dest}\")
execute_process(COMMAND \${CMAKE_COMMAND} -E copy \"${src}\" \"\${full_dest}\"
RESULT_VARIABLE copy_result
ERROR_VARIABLE error_output)
if(copy_result)
message(FATAL_ERROR \${error_output})
endif()
else()
message(STATUS \"Skipping : \${full_dest}\")
endif()
")
endfunction(install_if_not_exists)