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################################################################################
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# Copyright (c) Kitware Inc.
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# or http://www.slicer.org/copyright/copyright.txt for details.
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This file was originally developed by Jean-Christophe Fillion-Robin, Kitware Inc.
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# and was partially funded by NIH grant 3P41RR013218-12S1
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# AG 2013-02-18: I got it from here
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# https://github.com/Slicer/Slicer/blob/master/CMake/FindGit.cmake
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################################################################################
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# The module defines the following variables:
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# GIT_EXECUTABLE - path to git command line client
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# GIT_FOUND - true if the command line client was found
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# If the command line client executable is found the macro
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# GIT_WC_INFO(<dir> <var-prefix>)
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# is defined to extract information of a git working copy at
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# The macro defines the following variables:
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# <var-prefix>_WC_REVISION_HASH - Current SHA1 hash
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# <var-prefix>_WC_REVISION - Current SHA1 hash
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# <var-prefix>_WC_REVISION_NAME - Name associated with <var-prefix>_WC_REVISION_HASH
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# <var-prefix>_WC_URL - output of command `git config --get remote.origin.url'
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# <var-prefix>_WC_ROOT - Same value as working copy URL
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# <var-prefix>_WC_GITSVN - Set to false
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# ... and also the following ones if it's a git-svn repository:
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# <var-prefix>_WC_GITSVN - Set to True if it is a
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# <var-prefix>_WC_INFO - output of command `git svn info'
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# <var-prefix>_WC_URL - url of the associated SVN repository
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# <var-prefix>_WC_ROOT - root url of the associated SVN repository
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# <var-prefix>_WC_REVISION - current SVN revision number
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# <var-prefix>_WC_LAST_CHANGED_AUTHOR - author of last commit
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# <var-prefix>_WC_LAST_CHANGED_DATE - date of last commit
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# <var-prefix>_WC_LAST_CHANGED_REV - revision of last commit
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# <var-prefix>_WC_LAST_CHANGED_LOG - last log of base revision
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# GIT_WC_INFO(${PROJECT_SOURCE_DIR} Project)
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# message("Current revision is ${Project_WC_REVISION_HASH}")
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# message("git found: ${GIT_EXECUTABLE}")
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# Look for 'git' or 'eg' (easy git)
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# Prefer .cmd variants on Windows unless running in a Makefile
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if(NOT CMAKE_GENERATOR MATCHES "MSYS")
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# Note: Due to a bug in 'git.cmd' preventing it from returning the exit code of 'git',
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# we excluded it from the list of executables to search.
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# See http://code.google.com/p/msysgit/issues/detail?id=428
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# TODO Check if 'git' exists, get the associated version, if the corresponding version
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# is known to have a working version of 'git.cmd', use it.
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set(git_names git eg.cmd eg)
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find_program(GIT_EXECUTABLE ${git_names}
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"C:/Program Files/Git/bin"
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"C:/Program Files (x86)/Git/bin"
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DOC "git command line client")
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mark_as_advanced(GIT_EXECUTABLE)
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macro(GIT_WC_INFO dir prefix)
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execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --verify -q --short=7 HEAD
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WORKING_DIRECTORY ${dir}
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ERROR_VARIABLE GIT_error
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OUTPUT_VARIABLE ${prefix}_WC_REVISION_HASH
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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set(${prefix}_WC_REVISION ${${prefix}_WC_REVISION_HASH})
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if(NOT ${GIT_error} EQUAL 0)
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message(SEND_ERROR "Command \"${GIT_EXECUTBALE} rev-parse --verify -q --short=7 HEAD\" in directory ${dir} failed with output:\n${GIT_error}")
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else(NOT ${GIT_error} EQUAL 0)
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execute_process(COMMAND ${GIT_EXECUTABLE} name-rev ${${prefix}_WC_REVISION_HASH}
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WORKING_DIRECTORY ${dir}
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OUTPUT_VARIABLE ${prefix}_WC_REVISION_NAME
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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endif(NOT ${GIT_error} EQUAL 0)
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execute_process(COMMAND ${GIT_EXECUTABLE} config --get remote.origin.url
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WORKING_DIRECTORY ${dir}
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OUTPUT_VARIABLE ${prefix}_WC_URL
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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set(${prefix}_WC_GITSVN False)
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# Check if this git is likely to be a git-svn repository
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execute_process(COMMAND ${GIT_EXECUTABLE} config --get-regexp "^svn-remote"
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WORKING_DIRECTORY ${dir}
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OUTPUT_VARIABLE git_config_output
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OUTPUT_STRIP_TRAILING_WHITESPACE
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if(NOT "${git_config_output}" STREQUAL "")
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# In case git-svn is used, attempt to extract svn info
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execute_process(COMMAND ${GIT_EXECUTABLE} svn info
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WORKING_DIRECTORY ${dir}
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ERROR_VARIABLE git_svn_info_error
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OUTPUT_VARIABLE ${prefix}_WC_INFO
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RESULT_VARIABLE git_svn_info_result
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(${git_svn_info_result} EQUAL 0)
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set(${prefix}_WC_GITSVN True)
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string(REGEX REPLACE "^(.*\n)?URL: ([^\n]+).*"
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"\\2" ${prefix}_WC_URL "${${prefix}_WC_INFO}")
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string(REGEX REPLACE "^(.*\n)?Revision: ([^\n]+).*"
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"\\2" ${prefix}_WC_REVISION "${${prefix}_WC_INFO}")
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string(REGEX REPLACE "^(.*\n)?Repository Root: ([^\n]+).*"
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"\\2" ${prefix}_WC_ROOT "${${prefix}_WC_INFO}")
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string(REGEX REPLACE "^(.*\n)?Last Changed Author: ([^\n]+).*"
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"\\2" ${prefix}_WC_LAST_CHANGED_AUTHOR "${${prefix}_WC_INFO}")
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string(REGEX REPLACE "^(.*\n)?Last Changed Rev: ([^\n]+).*"
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"\\2" ${prefix}_WC_LAST_CHANGED_REV "${${prefix}_WC_INFO}")
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string(REGEX REPLACE "^(.*\n)?Last Changed Date: ([^\n]+).*"
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"\\2" ${prefix}_WC_LAST_CHANGED_DATE "${${prefix}_WC_INFO}")
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endif(${git_svn_info_result} EQUAL 0)
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endif(NOT "${git_config_output}" STREQUAL "")
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# If there is no 'remote.origin', default to "NA" value and print a warning message.
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if(NOT ${prefix}_WC_URL)
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message(WARNING "No remote origin set for git repository: ${dir}" )
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set( ${prefix}_WC_URL "NA" )
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set(${prefix}_WC_ROOT ${${prefix}_WC_URL})
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endmacro(GIT_WC_INFO)
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endif(GIT_EXECUTABLE)
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# Handle the QUIETLY and REQUIRED arguments and set GIT_FOUND to TRUE if
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# all listed variables are TRUE
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Git DEFAULT_MSG GIT_EXECUTABLE)