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CMake/Modules/FindGettext.cmake

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# - Find GNU gettext tools
# This module looks for the GNU gettext tools. This module defines the
# following values:
# GETTEXT_MSGMERGE_EXECUTABLE: the full path to the msgmerge tool.
# GETTEXT_MSGFMT_EXECUTABLE: the full path to the msgfmt tool.
# GETTEXT_FOUND: True if gettext has been found.
# GETTEXT_VERSION_STRING: the version of gettext found (since CMake 2.8.8)
#
# Additionally it provides the following macros:
# GETTEXT_CREATE_TRANSLATIONS ( outputFile [ALL] file1 ... fileN )
# This will create a target "translations" which will convert the
# given input po files into the binary output mo file. If the
# ALL option is used, the translations will also be created when
# building the default target.
# GETTEXT_PROCESS_POT( <potfile> [ALL] [INSTALL_DESTINATION <destdir>] LANGUAGES <lang1> <lang2> ... )
# Process the given pot file to mo files.
# If INSTALL_DESTINATION is given then automatically install rules will be created,
# the language subdirectory will be taken into account (by default use share/locale/).
# If ALL is specified, the pot file is processed when building the all traget.
# It creates a custom target "potfile".
# GETTEXT_PROCESS_PO_FILES( <lang> [ALL] [INSTALL_DESTINATION <dir>] PO_FILES <po1> <po2> ... )
# Process the given po files to mo files for the given language.
# If INSTALL_DESTINATION is given then automatically install rules will be created,
# the language subdirectory will be taken into account (by default use share/locale/).
# If ALL is specified, the po files are processed when building the all traget.
# It creates a custom target "pofiles".
#=============================================================================
# Copyright 2007-2009 Kitware, Inc.
# Copyright 2007 Alexander Neundorf <neundorf@kde.org>
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
find_program(GETTEXT_MSGMERGE_EXECUTABLE msgmerge)
find_program(GETTEXT_MSGFMT_EXECUTABLE msgfmt)
if(GETTEXT_MSGMERGE_EXECUTABLE)
execute_process(COMMAND ${GETTEXT_MSGMERGE_EXECUTABLE} --version
OUTPUT_VARIABLE gettext_version
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
if (gettext_version MATCHES "^msgmerge \\(.*\\) [0-9]")
string(REGEX REPLACE "^msgmerge \\([^\\)]*\\) ([0-9\\.]+[^ \n]*).*" "\\1" GETTEXT_VERSION_STRING "${gettext_version}")
endif()
unset(gettext_version)
endif()
include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Gettext
REQUIRED_VARS GETTEXT_MSGMERGE_EXECUTABLE GETTEXT_MSGFMT_EXECUTABLE
VERSION_VAR GETTEXT_VERSION_STRING)
include(CMakeParseArguments)
function(_GETTEXT_GET_UNIQUE_TARGET_NAME _name _unique_name)
set(propertyName "_GETTEXT_UNIQUE_COUNTER_${_name}")
get_property(currentCounter GLOBAL PROPERTY "${propertyName}")
if(NOT currentCounter)
set(currentCounter 1)
endif()
set(${_unique_name} "${_name}_${currentCounter}" PARENT_SCOPE)
math(EXPR currentCounter "${currentCounter} + 1")
set_property(GLOBAL PROPERTY ${propertyName} ${currentCounter} )
endfunction()
macro(GETTEXT_CREATE_TRANSLATIONS _potFile _firstPoFileArg)
# make it a real variable, so we can modify it here
set(_firstPoFile "${_firstPoFileArg}")
set(_gmoFiles)
get_filename_component(_potName ${_potFile} NAME)
string(REGEX REPLACE "^(.+)(\\.[^.]+)$" "\\1" _potBasename ${_potName})
get_filename_component(_absPotFile ${_potFile} ABSOLUTE)
set(_addToAll)
if(${_firstPoFile} STREQUAL "ALL")
set(_addToAll "ALL")
set(_firstPoFile)
endif()
foreach (_currentPoFile ${_firstPoFile} ${ARGN})
get_filename_component(_absFile ${_currentPoFile} ABSOLUTE)
get_filename_component(_abs_PATH ${_absFile} PATH)
get_filename_component(_lang ${_absFile} NAME_WE)
set(_gmoFile ${CMAKE_CURRENT_BINARY_DIR}/${_lang}.gmo)
add_custom_command(
OUTPUT ${_gmoFile}
COMMAND ${GETTEXT_MSGMERGE_EXECUTABLE} --quiet --update --backup=none -s ${_absFile} ${_absPotFile}
COMMAND ${GETTEXT_MSGFMT_EXECUTABLE} -o ${_gmoFile} ${_absFile}
DEPENDS ${_absPotFile} ${_absFile}
)
install(FILES ${_gmoFile} DESTINATION share/locale/${_lang}/LC_MESSAGES RENAME ${_potBasename}.mo)
set(_gmoFiles ${_gmoFiles} ${_gmoFile})
endforeach ()
if(NOT TARGET translations)
add_custom_target(translations)
endif()
_GETTEXT_GET_UNIQUE_TARGET_NAME(translations uniqueTargetName)
add_custom_target(${uniqueTargetName} ${_addToAll} DEPENDS ${_gmoFiles})
add_dependencies(translations ${uniqueTargetName})
endmacro()
function(GETTEXT_PROCESS_POT_FILE _potFile)
set(_gmoFiles)
set(_options ALL)
set(_oneValueArgs INSTALL_DESTINATION)
set(_multiValueArgs LANGUAGES)
CMAKE_PARSE_ARGUMENTS(_parsedArguments "${_options}" "${_oneValueArgs}" "${_multiValueArgs}" ${ARGN})
get_filename_component(_potName ${_potFile} NAME)
string(REGEX REPLACE "^(.+)(\\.[^.]+)$" "\\1" _potBasename ${_potName})
get_filename_component(_absPotFile ${_potFile} ABSOLUTE)
foreach (_lang ${_parsedArguments_LANGUAGES})
set(_poFile "${CMAKE_CURRENT_BINARY_DIR}/${_lang}.po")
set(_gmoFile "${CMAKE_CURRENT_BINARY_DIR}/${_lang}.gmo")
add_custom_command(
OUTPUT "${_poFile}"
COMMAND ${GETTEXT_MSGMERGE_EXECUTABLE} --quiet --update --backup=none -s ${_poFile} ${_absPotFile}
DEPENDS ${_absPotFile}
)
add_custom_command(
OUTPUT "${_gmoFile}"
COMMAND ${GETTEXT_MSGFMT_EXECUTABLE} -o ${_gmoFile} ${_poFile}
DEPENDS ${_absPotFile} ${_poFile}
)
if(_parsedArguments_INSTALL_DESTINATION)
install(FILES ${_gmoFile} DESTINATION ${_parsedArguments_INSTALL_DESTINATION}/${_lang}/LC_MESSAGES RENAME ${_potBasename}.mo)
endif()
list(APPEND _gmoFiles ${_gmoFile})
endforeach ()
if(NOT TARGET potfiles)
add_custom_target(potfiles)
endif()
_GETTEXT_GET_UNIQUE_TARGET_NAME( potfiles uniqueTargetName)
if(_parsedArguments_ALL)
add_custom_target(${uniqueTargetName} ALL DEPENDS ${_gmoFiles})
else()
add_custom_target(${uniqueTargetName} DEPENDS ${_gmoFiles})
endif()
add_dependencies(potfiles ${uniqueTargetName})
endfunction()
function(GETTEXT_PROCESS_PO_FILES _lang)
set(_options ALL)
set(_oneValueArgs INSTALL_DESTINATION)
set(_multiValueArgs PO_FILES)
set(_gmoFiles)
CMAKE_PARSE_ARGUMENTS(_parsedArguments "${_options}" "${_oneValueArgs}" "${_multiValueArgs}" ${ARGN})
foreach(_current_PO_FILE ${_parsedArguments_PO_FILES})
get_filename_component(_name ${_current_PO_FILE} NAME)
string(REGEX REPLACE "^(.+)(\\.[^.]+)$" "\\1" _basename ${_name})
set(_gmoFile ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.gmo)
add_custom_command(OUTPUT ${_gmoFile}
COMMAND ${GETTEXT_MSGFMT_EXECUTABLE} -o ${_gmoFile} ${_current_PO_FILE}
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
DEPENDS ${_current_PO_FILE}
)
if(_parsedArguments_INSTALL_DESTINATION)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${_basename}.gmo DESTINATION ${_parsedArguments_INSTALL_DESTINATION}/${_lang}/LC_MESSAGES/ RENAME ${_basename}.mo)
endif()
list(APPEND _gmoFiles ${_gmoFile})
endforeach()
if(NOT TARGET pofiles)
add_custom_target(pofiles)
endif()
_GETTEXT_GET_UNIQUE_TARGET_NAME( pofiles uniqueTargetName)
if(_parsedArguments_ALL)
add_custom_target(${uniqueTargetName} ALL DEPENDS ${_gmoFiles})
else()
add_custom_target(${uniqueTargetName} DEPENDS ${_gmoFiles})
endif()
add_dependencies(pofiles ${uniqueTargetName})
endfunction()
if (GETTEXT_MSGMERGE_EXECUTABLE AND GETTEXT_MSGFMT_EXECUTABLE )
set(GETTEXT_FOUND TRUE)
else ()
set(GETTEXT_FOUND FALSE)
if (GetText_REQUIRED)
message(FATAL_ERROR "GetText not found")
endif ()
endif ()
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