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include(InstallClobberImmune)
# This macro can be used to install configuration files which
# users are expected to modify after installation. It will:
#
# - If binary packaging is enabled:
# Install the file in the typical CMake fashion, but append to the
# INSTALLED_CONFIG_FILES cache variable for use with the Mac package's
# pre/post install scripts
#
# - If binary packaging is not enabled:
# Install the script in a way such that it will check at `make install`
# time whether the file does not exist. See InstallClobberImmune.cmake
#
# - Always create a target "install-example-configs" which installs an
# example version of the config file.
#
# _srcfile: the absolute path to the file to install
# _dstdir: absolute path to the directory in which to install the file
# _dstfilename: how to (re)name the file inside _dstdir
macro(InstallPackageConfigFile _srcfile _dstdir _dstfilename)
set(_dstfile ${_dstdir}/${_dstfilename})
if (BINARY_PACKAGING_MODE)
# If packaging mode is enabled, always install the distribution's
# version of the file. The Mac package's pre/post install scripts
# or native functionality of RPMs will take care of not clobbering it.
install(FILES ${_srcfile} DESTINATION ${_dstdir} RENAME ${_dstfilename})
# This cache variable is what the Mac package pre/post install scripts
# use to avoid clobbering user-modified config files
set(INSTALLED_CONFIG_FILES
"${INSTALLED_CONFIG_FILES} ${_dstfile}" CACHE STRING "" FORCE)
# Additionally, the Mac PackageMaker packages don't have any automatic
# handling of configuration file conflicts so install an example file
# that the post install script will cleanup in the case it's extraneous
if (APPLE)
install(FILES ${_srcfile} DESTINATION ${_dstdir}
RENAME ${_dstfilename}.example)
endif ()
else ()
# Have `make install` check at run time whether the file does not exist
InstallClobberImmune(${_srcfile} ${_dstfile})
endif ()
if (NOT TARGET install-example-configs)
add_custom_target(install-example-configs
COMMENT "Installed example configuration files")
endif ()
# Replace characters disallowed in target names (per CMP0037) with '.'.
string(REGEX REPLACE "[^A-Za-z0-9_.+-]" "." _flatsrc ${_srcfile})
set(_example ${_dstfile}.example)
add_custom_target(install-example-config-${_flatsrc}
COMMAND "${CMAKE_COMMAND}" -E copy ${_srcfile} \${DESTDIR}${_example}
COMMENT "Installing ${_example}")
add_dependencies(install-example-configs install-example-config-${_flatsrc})
endmacro(InstallPackageConfigFile)
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