CMake/Modules/FindSubversion.cmake

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# - 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 ${Project_WC_REVISION}")
# Subversion_WC_LOG(${PROJECT_SOURCE_DIR} Project)
# MESSAGE("Last changed log is ${Project_LAST_CHANGED_LOG}")
# 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)
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)
# 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)
EXECUTE_PROCESS(COMMAND ${Subversion_SVN_EXECUTABLE} --version
WORKING_DIRECTORY ${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)
# restore the previous LC_ALL
SET(ENV{LC_ALL} ${_Subversion_SAVED_LC_ALL})
ENDMACRO(Subversion_WC_INFO)
MACRO(Subversion_WC_LOG dir prefix)
# This macro can block if the certificate is not signed:
# svn ask you to accept the certificate and wait for your answer
# This macro requires a svn server network access (Internet most of the time)
# and can also be slow since it access the svn server
EXECUTE_PROCESS(COMMAND
${Subversion_SVN_EXECUTABLE} log -r BASE ${dir}
OUTPUT_VARIABLE ${prefix}_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_LOG)
ENDIF(Subversion_SVN_EXECUTABLE)
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.