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-#.rst:
-# FindHg
-# ------
-#
-# Extract information from a mercurial working copy.
-#
-# The module defines the following variables:
-#
-# ::
-#
-# HG_EXECUTABLE - path to mercurial command line client (hg)
-# HG_FOUND - true if the command line client was found
-# HG_VERSION_STRING - the version of mercurial found
-#
-# If the command line client executable is found the following macro is defined:
-#
-# ::
-#
-# HG_WC_INFO(<dir> <var-prefix>)
-#
-# Hg_WC_INFO extracts information of a mercurial working copy
-# at a given location. This macro defines the following variables:
-#
-# ::
-#
-# <var-prefix>_WC_CHANGESET - current changeset
-# <var-prefix>_WC_REVISION - current revision
-#
-# Example usage:
-#
-# ::
-#
-# find_package(Hg)
-# if(HG_FOUND)
-# message("hg found: ${HG_EXECUTABLE}")
-# HG_WC_INFO(${PROJECT_SOURCE_DIR} Project)
-# message("Current revision is ${Project_WC_REVISION}")
-# message("Current changeset is ${Project_WC_CHANGESET}")
-# endif()
-
-#=============================================================================
-# Copyright 2010-2012 Kitware, Inc.
-# Copyright 2012 Rolf Eike Beer <eike@sf-mail.de>
-# Copyright 2014 Matthaeus G. Chajdas
-#
-# Distributed under the OSI-approved BSD License (the "License");
-# see accompanying file Copyright.txt for details.
-#
-# This software is distributed WITHOUT ANY WARRANTY; without even the
-# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the License for more information.
-#=============================================================================
-# (To distribute this file outside of CMake, substitute the full
-# License text for the above reference.)
-
-find_program(HG_EXECUTABLE
- NAMES hg
- PATHS
- [HKEY_LOCAL_MACHINE\\Software\\TortoiseHG]
- PATH_SUFFIXES Mercurial
- DOC "hg command line client"
- )
-mark_as_advanced(HG_EXECUTABLE)
-
-if(HG_EXECUTABLE)
- set(_saved_lc_all "$ENV{LC_ALL}")
- set(ENV{LC_ALL} "C")
-
- set(_saved_language "$ENV{LANGUAGE}")
- set(ENV{LANGUAGE})
-
- execute_process(COMMAND ${HG_EXECUTABLE} --version
- OUTPUT_VARIABLE hg_version
- ERROR_QUIET
- RESULT_VARIABLE hg_result
- OUTPUT_STRIP_TRAILING_WHITESPACE)
-
- set(ENV{LC_ALL} ${_saved_lc_all})
- set(ENV{LANGUAGE} ${_saved_language})
-
- if(hg_result MATCHES "is not a valid Win32 application")
- set_property(CACHE HG_EXECUTABLE PROPERTY VALUE "HG_EXECUTABLE-NOTFOUND")
- endif()
- if(hg_version MATCHES "^Mercurial Distributed SCM \\(version ([0-9][^)]*)\\)")
- set(HG_VERSION_STRING "${CMAKE_MATCH_1}")
- endif()
- unset(hg_version)
-
- macro(HG_WC_INFO dir prefix)
- execute_process(COMMAND ${HG_EXECUTABLE} id -i -n
- WORKING_DIRECTORY ${dir}
- RESULT_VARIABLE hg_id_result
- ERROR_VARIABLE hg_id_error
- OUTPUT_VARIABLE ${prefix}_WC_DATA
- OUTPUT_STRIP_TRAILING_WHITESPACE)
- if(NOT ${hg_id_result} EQUAL 0)
- message(SEND_ERROR "Command \"${HG_EXECUTBALE} id -n\" in directory ${dir} failed with output:\n${hg_id_error}")
- endif()
-
- string(REGEX REPLACE "([0-9a-f]+)\\+? [0-9]+\\+?" "\\1" ${prefix}_WC_CHANGESET ${${prefix}_WC_DATA})
- string(REGEX REPLACE "[0-9a-f]+\\+? ([0-9]+)\\+?" "\\1" ${prefix}_WC_REVISION ${${prefix}_WC_DATA})
- endmacro(HG_WC_INFO)
-endif()
-
-# Handle the QUIETLY and REQUIRED arguments and set HG_FOUND to TRUE if
-# all listed variables are TRUE
-include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
-find_package_handle_standard_args(Hg
- REQUIRED_VARS HG_EXECUTABLE
- VERSION_VAR HG_VERSION_STRING)