CMake/Modules/FindGettext.cmake

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# - Find GNU gettext tools
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# 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.
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# 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 )
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# 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)
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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(GETTEXT_MSGMERGE_EXECUTABLE)
INCLUDE(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(Gettext
REQUIRED_VARS GETTEXT_MSGMERGE_EXECUTABLE GETTEXT_MSGFMT_EXECUTABLE
VERSION_VAR GETTEXT_VERSION_STRING)
INCLUDE(CMakeParseArguments)
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(${_firstPoFile} STREQUAL "ALL")
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 (_currentPoFile )
ADD_CUSTOM_TARGET(translations ${_addToAll} DEPENDS ${_gmoFiles})
ENDMACRO(GETTEXT_CREATE_TRANSLATIONS )
FUNCTION(GETTEXT_PROCESS_POT_FILE _potFile)
SET(_gmoFiles)
SET(_options ALL)
SET(_oneValueArgs INSTALL_DESTINATION)
SET(_multiValueArgs LANGUAGES)
CMAKE_PARSE_ARGUMENTS(_parsedArguments "${_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(_parsedArguments_INSTALL_DESTINATION)
LIST(APPEND _gmoFiles ${_gmoFile})
ENDFOREACH (_lang )
IF(_parsedArguments_ALL)
ADD_CUSTOM_TARGET(potfiles ALL DEPENDS ${_gmoFiles})
ELSE(_parsedArguments_ALL)
ADD_CUSTOM_TARGET(potfiles DEPENDS ${_gmoFiles})
ENDIF(_parsedArguments_ALL)
ENDFUNCTION(GETTEXT_PROCESS_POT_FILE)
FUNCTION(GETTEXT_PROCESS_PO_FILES _lang)
SET(_options ALL)
SET(_oneValueArgs INSTALL_DESTINATION)
SET(_multiValueArgs PO_FILES)
SET(_gmoFiles)
CMAKE_PARSE_ARGUMENTS(_parsedArguments "${_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(_parsedArguments_INSTALL_DESTINATION)
LIST(APPEND _gmoFiles ${_gmoFile})
ENDFOREACH(_current_PO_FILE)
IF(_parsedArguments_ALL)
ADD_CUSTOM_TARGET(pofiles ALL DEPENDS ${_gmoFiles})
ELSE(_parsedArguments_ALL)
ADD_CUSTOM_TARGET(pofiles DEPENDS ${_gmoFiles})
ENDIF(_parsedArguments_ALL)
ENDFUNCTION(GETTEXT_PROCESS_PO_FILES)
IF (GETTEXT_MSGMERGE_EXECUTABLE AND GETTEXT_MSGFMT_EXECUTABLE )
SET(GETTEXT_FOUND TRUE)
ELSE (GETTEXT_MSGMERGE_EXECUTABLE AND GETTEXT_MSGFMT_EXECUTABLE )
SET(GETTEXT_FOUND FALSE)
IF (GetText_REQUIRED)
MESSAGE(FATAL_ERROR "GetText not found")
ENDIF (GetText_REQUIRED)
ENDIF (GETTEXT_MSGMERGE_EXECUTABLE AND GETTEXT_MSGFMT_EXECUTABLE )