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annotate cmake/FindHg.cmake @ 1065:5cf648c233d2

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Note that quoted quotes are unhandled instead of FIXME We do not plan to fix that. Not supporting those is acceptable.
author Andre Heinecke <andre.heinecke@intevation.de>
date Wed, 10 Sep 2014 11:52:55 +0200
parents a2998ae79436
children
rev   line source
533
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Andre Heinecke <aheinecke@intevation.de>
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1 # The module defines the following variables:
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2 # HG_EXECUTABLE - path to mercurial command line client (hg)
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3 # HG_FOUND - true if the command line client was found
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4 # HG_VERSION_STRING - the version of mercurial found
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5 # Example usage:
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6 # find_package(Hg)
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7 # if(HG_FOUND)
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8 # message("hg found: ${HG_EXECUTABLE}")
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9 # endif()
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10
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11 #=============================================================================
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12 # Copyright 2010-2012 Kitware, Inc.
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13 # Copyright 2012 Rolf Eike Beer <eike@sf-mail.de>
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14 #
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15 # Distributed under the OSI-approved BSD License (the "License");
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16 # see accompanying file Copyright.txt for details.
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17 #
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18 # This software is distributed WITHOUT ANY WARRANTY; without even the
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19 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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20 # See the License for more information.
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21 #=============================================================================
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22 # (To distribute this file outside of CMake, substitute the full
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23 # License text for the above reference.)
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24
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25 find_program(HG_EXECUTABLE
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26 NAMES hg
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27 PATH_SUFFIXES Mercurial
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28 DOC "hg command line client"
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29 )
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30 mark_as_advanced(HG_EXECUTABLE)
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31
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32 if(HG_EXECUTABLE)
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33 execute_process(COMMAND ${HG_EXECUTABLE} --version
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34 OUTPUT_VARIABLE hg_version
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35 ERROR_QUIET
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36 OUTPUT_STRIP_TRAILING_WHITESPACE)
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37 if(hg_version MATCHES "^Mercurial Distributed SCM \\(version ([0-9][^)]*)\\)")
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38 set(HG_VERSION_STRING "${CMAKE_MATCH_1}")
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39 endif()
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40 unset(hg_version)
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41 endif()
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42
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43 # Handle the QUIETLY and REQUIRED arguments and set HG_FOUND to TRUE if
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44 # all listed variables are TRUE
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45 include(FindPackageHandleStandardArgs)
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46 find_package_handle_standard_args(Hg
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47 REQUIRED_VARS HG_EXECUTABLE
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48 VERSION_VAR HG_VERSION_STRING)
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