CMake/Modules/FindSubversion.cmake
Alexander Neundorf 4bcce925ea BUG: set LC_ALL to C, so message from svn are not translated, which can lead
to problems (since the output is parsed, which fails then)

Brad, Bill, can you think of any reasons this change might create problems ?

Alex
2008-01-14 17:19:20 -05:00

127 lines
5.7 KiB
CMake

# - Extract information from a subversion working copy
# The module defines the following variables:
# Subversion_SVN_EXECUTABLE - path to svn command line client
# Subversion_VERSION_SVN - version of svn command line client
# Subversion_FOUND - true if the command line client was found
# If the command line client executable is found the macro
# Subversion_WC_INFO(<dir> <var-prefix>)
# is defined to extract information of a subversion working copy at
# a given location. The macro defines the following variables:
# <var-prefix>_WC_URL - url of the repository (at <dir>)
# <var-prefix>_WC_ROOT - root url of the repository
# <var-prefix>_WC_REVISION - current revision
# <var-prefix>_WC_LAST_CHANGED_AUTHOR - author of last commit
# <var-prefix>_WC_LAST_CHANGED_DATE - date of last commit
# <var-prefix>_WC_LAST_CHANGED_REV - revision of last commit
# <var-prefix>_WC_LAST_CHANGED_LOG - last log of base revision
# <var-prefix>_WC_INFO - output of command `svn info <dir>'
# Example usage:
# FIND_PACKAGE(Subversion)
# IF(Subversion_FOUND)
# Subversion_WC_INFO(${PROJECT_SOURCE_DIR} Project)
# MESSAGE("Current revision is ${Project_WC_REVISION}")
# ENDIF(Subversion_FOUND)
# Copyright (c) 2006, Tristan Carel
# All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the University of California, Berkeley nor the
# names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# $Id$
SET(Subversion_FOUND FALSE)
SET(Subversion_SVN_FOUND FALSE)
# the subversion commands should be executed with the C locale, otherwise
# the message (which are parsed) may be translated, Alex
SET(_Subversion_SAVED_LC_ALL "$ENV{LC_ALL}" )
SET(ENV{LC_ALL} C)
FIND_PROGRAM(Subversion_SVN_EXECUTABLE svn
DOC "subversion command line client")
MARK_AS_ADVANCED(Subversion_SVN_EXECUTABLE)
IF(Subversion_SVN_EXECUTABLE)
SET(Subversion_SVN_FOUND TRUE)
SET(Subversion_FOUND TRUE)
MACRO(Subversion_WC_INFO dir prefix)
EXECUTE_PROCESS(COMMAND ${Subversion_SVN_EXECUTABLE} --version
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
OUTPUT_VARIABLE Subversion_VERSION_SVN
OUTPUT_STRIP_TRAILING_WHITESPACE)
EXECUTE_PROCESS(COMMAND ${Subversion_SVN_EXECUTABLE} info ${dir}
OUTPUT_VARIABLE ${prefix}_WC_INFO
ERROR_VARIABLE Subversion_svn_info_error
RESULT_VARIABLE Subversion_svn_info_result
OUTPUT_STRIP_TRAILING_WHITESPACE)
IF(NOT ${Subversion_svn_info_result} EQUAL 0)
MESSAGE(SEND_ERROR "Command \"${Subversion_SVN_EXECUTABLE} info ${dir}\" failed with output:\n${Subversion_svn_info_error}")
ELSE(NOT ${Subversion_svn_info_result} EQUAL 0)
STRING(REGEX REPLACE "^(.*\n)?svn, version ([.0-9]+).*"
"\\2" Subversion_VERSION_SVN "${Subversion_VERSION_SVN}")
STRING(REGEX REPLACE "^(.*\n)?URL: ([^\n]+).*"
"\\2" ${prefix}_WC_URL "${${prefix}_WC_INFO}")
STRING(REGEX REPLACE "^(.*\n)?Revision: ([^\n]+).*"
"\\2" ${prefix}_WC_REVISION "${${prefix}_WC_INFO}")
STRING(REGEX REPLACE "^(.*\n)?Last Changed Author: ([^\n]+).*"
"\\2" ${prefix}_WC_LAST_CHANGED_AUTHOR "${${prefix}_WC_INFO}")
STRING(REGEX REPLACE "^(.*\n)?Last Changed Rev: ([^\n]+).*"
"\\2" ${prefix}_WC_LAST_CHANGED_REV "${${prefix}_WC_INFO}")
STRING(REGEX REPLACE "^(.*\n)?Last Changed Date: ([^\n]+).*"
"\\2" ${prefix}_WC_LAST_CHANGED_DATE "${${prefix}_WC_INFO}")
ENDIF(NOT ${Subversion_svn_info_result} EQUAL 0)
EXECUTE_PROCESS(COMMAND
${Subversion_SVN_EXECUTABLE} log -r BASE ${dir}
OUTPUT_VARIABLE Subversion_LAST_CHANGED_LOG
ERROR_VARIABLE Subversion_svn_log_error
RESULT_VARIABLE Subversion_svn_log_result
OUTPUT_STRIP_TRAILING_WHITESPACE)
IF(NOT ${Subversion_svn_log_result} EQUAL 0)
MESSAGE(SEND_ERROR "Command \"${Subversion_SVN_EXECUTABLE} log -r BASE ${dir}\" failed with output:\n${Subversion_svn_log_error}")
ENDIF(NOT ${Subversion_svn_log_result} EQUAL 0)
ENDMACRO(Subversion_WC_INFO)
ENDIF(Subversion_SVN_EXECUTABLE)
# restore the previous LC_ALL
SET(ENV{LC_ALL} ${_Subversion_SAVED_LC_ALL})
IF(NOT Subversion_FOUND)
IF(NOT Subversion_FIND_QUIETLY)
MESSAGE(STATUS "Subversion was not found.")
ELSE(NOT Subversion_FIND_QUIETLY)
IF(Subversion_FIND_REQUIRED)
MESSAGE(FATAL_ERROR "Subversion was not found.")
ENDIF(Subversion_FIND_REQUIRED)
ENDIF(NOT Subversion_FIND_QUIETLY)
ENDIF(NOT Subversion_FOUND)
# FindSubversion.cmake ends here.