Modules/FindGettext.cmake - third_party/cmake - Git at Google

 # - 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(GETTEXT_MSGMERGE_EXECUTABLE)

 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(${_firstPoFile} STREQUAL "ALL")
       SET(_addToAll "ALL")
       SET(_firstPoFile)
    ENDIF(${_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 )

    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(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(NOT TARGET potfiles)
      ADD_CUSTOM_TARGET(potfiles)
   ENDIF()

   _GETTEXT_GET_UNIQUE_TARGET_NAME( potfiles uniqueTargetName)

    IF(_parsedArguments_ALL)
       ADD_CUSTOM_TARGET(${uniqueTargetName} ALL DEPENDS ${_gmoFiles})
    ELSE(_parsedArguments_ALL)
       ADD_CUSTOM_TARGET(${uniqueTargetName} DEPENDS ${_gmoFiles})
    ENDIF(_parsedArguments_ALL)

    ADD_DEPENDENCIES(potfiles ${uniqueTargetName})

 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(NOT TARGET pofiles)
      ADD_CUSTOM_TARGET(pofiles)
   ENDIF()

   _GETTEXT_GET_UNIQUE_TARGET_NAME( pofiles uniqueTargetName)

    IF(_parsedArguments_ALL)
       ADD_CUSTOM_TARGET(${uniqueTargetName} ALL DEPENDS ${_gmoFiles})
    ELSE(_parsedArguments_ALL)
       ADD_CUSTOM_TARGET(${uniqueTargetName} DEPENDS ${_gmoFiles})
    ENDIF(_parsedArguments_ALL)

    ADD_DEPENDENCIES(pofiles ${uniqueTargetName})

 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 )
	# - 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(GETTEXT_MSGMERGE_EXECUTABLE)

	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(${_firstPoFile} STREQUAL "ALL")
	SET(_addToAll "ALL")
	SET(_firstPoFile)
	ENDIF(${_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 )

	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(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(NOT TARGET potfiles)
	ADD_CUSTOM_TARGET(potfiles)
	ENDIF()

	_GETTEXT_GET_UNIQUE_TARGET_NAME( potfiles uniqueTargetName)

	IF(_parsedArguments_ALL)
	ADD_CUSTOM_TARGET(${uniqueTargetName} ALL DEPENDS ${_gmoFiles})
	ELSE(_parsedArguments_ALL)
	ADD_CUSTOM_TARGET(${uniqueTargetName} DEPENDS ${_gmoFiles})
	ENDIF(_parsedArguments_ALL)

	ADD_DEPENDENCIES(potfiles ${uniqueTargetName})

	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(NOT TARGET pofiles)
	ADD_CUSTOM_TARGET(pofiles)
	ENDIF()

	_GETTEXT_GET_UNIQUE_TARGET_NAME( pofiles uniqueTargetName)

	IF(_parsedArguments_ALL)
	ADD_CUSTOM_TARGET(${uniqueTargetName} ALL DEPENDS ${_gmoFiles})
	ELSE(_parsedArguments_ALL)
	ADD_CUSTOM_TARGET(${uniqueTargetName} DEPENDS ${_gmoFiles})
	ENDIF(_parsedArguments_ALL)

	ADD_DEPENDENCIES(pofiles ${uniqueTargetName})

	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 )