/usr/lib/cmake/FindGitInfo.cmake is in seqan-dev 1.4.2+dfsg-2.
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# SeqAn - The Library for Sequence Analysis
# ============================================================================
# Copyright (c) 2006-2013, Knut Reinert, FU Berlin
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of Knut Reinert or the FU Berlin nor the names of
# its contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL KNUT REINERT OR THE FU BERLIN BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
# DAMAGE.
# ============================================================================
#
# This CMake module will try to find git information. You can use it the same
# way you would use any other CMake module.
#
# find_package(GitInfo [REQUIRED] ...)
#
# If the Git package is found, the macro
# GIT_WC_INFO(<dir> <var-prefix>)
# is defined to extract information of a git working copy at a given location.
#
# The macro defines the following variables:
# <var-prefix>_WC_REVISION - Hash of last commit
# <var-prefix>_WC_LAST_CHANGED_DATE - Date of last commit
#
# ============================================================================
find_package (Git QUIET)
if (GIT_FOUND)
macro(GIT_WC_INFO dir prefix)
execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --verify -q --short=7 HEAD
WORKING_DIRECTORY ${dir}
ERROR_QUIET
OUTPUT_VARIABLE ${prefix}_WC_REVISION
OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND ${GIT_EXECUTABLE} log -n 1 --simplify-by-decoration --pretty=%ai
WORKING_DIRECTORY ${dir}
ERROR_QUIET
OUTPUT_VARIABLE ${prefix}_WC_LAST_CHANGED_DATE
OUTPUT_STRIP_TRAILING_WHITESPACE)
endmacro(GIT_WC_INFO)
endif()
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