khanat-opennel-code/code/CMakeModules/FindMercurial.cmake

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2013-07-27 02:03:05 +00:00
# - Extract information from a subversion working copy
# The module defines the following variables:
# Mercurial_HG_EXECUTABLE - path to hg command line client
# Mercurial_VERSION_HG - version of hg command line client
# Mercurial_FOUND - true if the command line client was found
# MERCURIAL_FOUND - same as Mercurial_FOUND, set for compatiblity reasons
#
# The minimum required version of Mercurial can be specified using the
# standard syntax, e.g. FIND_PACKAGE(Mercurial 1.4)
#
# If the command line client executable is found two macros are defined:
# Mercurial_WC_INFO(<dir> <var-prefix>)
# Mercurial_WC_LOG(<dir> <var-prefix>)
# Mercurial_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 `hg info <dir>'
# Mercurial_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(Mercurial)
# IF(MERCURIAL_FOUND)
# Mercurial_WC_INFO(${PROJECT_SOURCE_DIR} Project)
# MESSAGE("Current revision is ${Project_WC_REVISION}")
# Mercurial_WC_LOG(${PROJECT_SOURCE_DIR} Project)
# MESSAGE("Last changed log is ${Project_LAST_CHANGED_LOG}")
# ENDIF(MERCURIAL_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(Mercurial_HG_EXECUTABLE hg
DOC "mercurial command line client")
MARK_AS_ADVANCED(Mercurial_HG_EXECUTABLE)
IF(Mercurial_HG_EXECUTABLE)
EXECUTE_PROCESS(COMMAND ${Mercurial_HG_EXECUTABLE} --version
OUTPUT_VARIABLE Mercurial_VERSION_HG
OUTPUT_STRIP_TRAILING_WHITESPACE)
STRING(REGEX REPLACE ".*version ([\\.0-9]+).*"
"\\1" Mercurial_VERSION_HG "${Mercurial_VERSION_HG}")
MACRO(Mercurial_WC_INFO dir prefix)
EXECUTE_PROCESS(COMMAND ${Mercurial_HG_EXECUTABLE} tip --template "{rev};{node};{tags};{author}"
WORKING_DIRECTORY ${dir}
OUTPUT_VARIABLE ${prefix}_WC_INFO
ERROR_VARIABLE Mercurial_hg_info_error
RESULT_VARIABLE Mercurial_hg_info_result
OUTPUT_STRIP_TRAILING_WHITESPACE)
IF(NOT ${Mercurial_hg_info_result} EQUAL 0)
MESSAGE(SEND_ERROR "Command \"${Mercurial_HG_EXECUTABLE} tip\" failed with output:\n${Mercurial_hg_info_error}")
ELSE(NOT ${Mercurial_hg_info_result} EQUAL 0)
LIST(LENGTH ${prefix}_WC_INFO _COUNT)
IF(_COUNT EQUAL 4)
LIST(GET ${prefix}_WC_INFO 0 ${prefix}_WC_REVISION)
LIST(GET ${prefix}_WC_INFO 1 ${prefix}_WC_CHANGESET)
LIST(GET ${prefix}_WC_INFO 2 ${prefix}_WC_BRANCH)
LIST(GET ${prefix}_WC_INFO 3 ${prefix}_WC_LAST_CHANGED_AUTHOR)
ELSE(_COUNT EQUAL 4)
MESSAGE(STATUS "Bad output from HG")
SET(${prefix}_WC_REVISION "unknown")
SET(${prefix}_WC_CHANGESET "unknown")
SET(${prefix}_WC_BRANCH "unknown")
ENDIF(_COUNT EQUAL 4)
ENDIF(NOT ${Mercurial_hg_info_result} EQUAL 0)
ENDMACRO(Mercurial_WC_INFO)
MACRO(Mercurial_WC_LOG dir prefix)
# This macro can block if the certificate is not signed:
# hg ask you to accept the certificate and wait for your answer
# This macro requires a hg server network access (Internet most of the time)
# and can also be slow since it access the hg server
EXECUTE_PROCESS(COMMAND
${Mercurial_HG_EXECUTABLE} --non-interactive log -r BASE ${dir}
OUTPUT_VARIABLE ${prefix}_LAST_CHANGED_LOG
ERROR_VARIABLE Mercurial_hg_log_error
RESULT_VARIABLE Mercurial_hg_log_result
OUTPUT_STRIP_TRAILING_WHITESPACE)
IF(NOT ${Mercurial_hg_log_result} EQUAL 0)
MESSAGE(SEND_ERROR "Command \"${Mercurial_HG_EXECUTABLE} log -r BASE ${dir}\" failed with output:\n${Mercurial_hg_log_error}")
ENDIF(NOT ${Mercurial_hg_log_result} EQUAL 0)
ENDMACRO(Mercurial_WC_LOG)
ENDIF(Mercurial_HG_EXECUTABLE)
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Mercurial DEFAULT_MSG Mercurial_HG_EXECUTABLE)