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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
# SUBVERSION_FOUND - same as Subversion_FOUND, set for compatiblity reasons
#
# The minimum required version of Subversion can be specified using the
# standard syntax, e.g. find_package(Subversion 1.4)
#
# If the command line client executable is found two macros are defined:
# Subversion_WC_INFO(<dir> <var-prefix> [ERROR_QUIET])
# Subversion_WC_LOG(<dir> <var-prefix>)
# Subversion_WC_INFO extracts information of a subversion working copy at
# a given location. ERROR_QUIET causes the macro to suppress errors.
# The macro defines the following variables:
# <var-prefix>_WC_FOUND - if <dir> is a working copy
# <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_INFO - output of command `svn info <dir>'
# Subversion_WC_LOG retrieves the log message of the base revision of a
# subversion working copy at a given location. This macro defines the
# variable:
# <var-prefix>_LAST_CHANGED_LOG - last log of base revision
# 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 ${Project_LAST_CHANGED_LOG}")
# endif()
#=============================================================================
# Copyright 2006-2009 Kitware, Inc.
# Copyright 2006 Tristan Carel
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
find_program(Subversion_SVN_EXECUTABLE svn
DOC "subversion command line client")
mark_as_advanced(Subversion_SVN_EXECUTABLE)
if(Subversion_SVN_EXECUTABLE)
# the subversion commands should be executed with the C locale, otherwise
# the message (which are parsed) may be translated, Alex
set(_Subversion_SAVED_LC_ALL "$ENV{LC_ALL}")
set(ENV{LC_ALL} C)
execute_process(COMMAND ${Subversion_SVN_EXECUTABLE} --version
OUTPUT_VARIABLE Subversion_VERSION_SVN
OUTPUT_STRIP_TRAILING_WHITESPACE)
# restore the previous LC_ALL
set(ENV{LC_ALL} ${_Subversion_SAVED_LC_ALL})
string(REGEX REPLACE "^(.*\n)?svn, version ([.0-9]+).*"
"\\2" Subversion_VERSION_SVN "${Subversion_VERSION_SVN}")
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} 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 ${Subversion_svn_info_result} EQUAL 0)
set(${prefix}_WC_FOUND FALSE)
if(NOT "${ARGV2}" STREQUAL "ERROR_QUIET")
message(SEND_ERROR "Command \"${Subversion_SVN_EXECUTABLE} info ${dir}\" failed with output:\n${Subversion_svn_info_error}")
endif(NOT "${ARGV2}" STREQUAL "ERROR_QUIET")
else(NOT ${Subversion_svn_info_result} EQUAL 0)
set(${prefix}_WC_FOUND TRUE)
string(REGEX REPLACE "^(.*\n)?URL: ([^\n]+).*"
"\\2" ${prefix}_WC_URL "${${prefix}_WC_INFO}")
string(REGEX REPLACE "^(.*\n)?Repository Root: ([^\n]+).*"
"\\2" ${prefix}_WC_ROOT "${${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()
# restore the previous LC_ALL
set(ENV{LC_ALL} ${_Subversion_SAVED_LC_ALL})
endmacro()
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} --non-interactive 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()
endmacro()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Subversion REQUIRED_VARS Subversion_SVN_EXECUTABLE
VERSION_VAR Subversion_VERSION_SVN )
# for compatibility
set(Subversion_FOUND ${SUBVERSION_FOUND})
set(Subversion_SVN_FOUND ${SUBVERSION_FOUND})
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