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