CMake/Modules/FindSubversion.cmake

132 lines
5.8 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
# 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>)
# Subversion_WC_LOG(<dir> <var-prefix>)
# Subversion_WC_INFO extracts information of a subversion working copy at
# a given location. This 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_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 ${Project_LAST_CHANGED_LOG}")
# ENDIF(SUBVERSION_FOUND)
#=============================================================================
# Copyright 2006-2009 Kitware, Inc.
# Copyright 2006 Tristan Carel
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
FIND_PROGRAM(Subversion_SVN_EXECUTABLE svn
DOC "subversion command line client")
MARK_AS_ADVANCED(Subversion_SVN_EXECUTABLE)
IF(Subversion_SVN_EXECUTABLE)
# the subversion commands should be executed with the C locale, otherwise
# the message (which are parsed) may be translated, Alex
SET(_Subversion_SAVED_LC_ALL "$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 ${Subversion_svn_info_result} EQUAL 0)
MESSAGE(SEND_ERROR "Command \"${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)?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(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)
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})