mirror of
https://github.com/halpz/re3
synced 2024-11-17 07:48:47 +01:00
43 lines
1.3 KiB
CMake
43 lines
1.3 KiB
CMake
#
|
|
# Internal file for GetGitRevisionDescription.cmake
|
|
#
|
|
# Requires CMake 2.6 or newer (uses the 'function' command)
|
|
#
|
|
# Original Author:
|
|
# 2009-2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
|
|
# http://academic.cleardefinition.com
|
|
# Iowa State University HCI Graduate Program/VRAC
|
|
#
|
|
# Copyright 2009-2012, Iowa State University
|
|
# Copyright 2011-2015, Contributors
|
|
# Distributed under the Boost Software License, Version 1.0.
|
|
# (See accompanying file LICENSE_1_0.txt or copy at
|
|
# http://www.boost.org/LICENSE_1_0.txt)
|
|
# SPDX-License-Identifier: BSL-1.0
|
|
|
|
set(HEAD_HASH)
|
|
|
|
file(READ "@HEAD_FILE@" HEAD_CONTENTS LIMIT 1024)
|
|
|
|
string(STRIP "${HEAD_CONTENTS}" HEAD_CONTENTS)
|
|
if(HEAD_CONTENTS MATCHES "ref")
|
|
# named branch
|
|
string(REPLACE "ref: " "" HEAD_REF "${HEAD_CONTENTS}")
|
|
if(EXISTS "@GIT_DIR@/${HEAD_REF}")
|
|
configure_file("@GIT_DIR@/${HEAD_REF}" "@GIT_DATA@/head-ref" COPYONLY)
|
|
else()
|
|
configure_file("@GIT_DIR@/packed-refs" "@GIT_DATA@/packed-refs" COPYONLY)
|
|
file(READ "@GIT_DATA@/packed-refs" PACKED_REFS)
|
|
if(${PACKED_REFS} MATCHES "([0-9a-z]*) ${HEAD_REF}")
|
|
set(HEAD_HASH "${CMAKE_MATCH_1}")
|
|
endif()
|
|
endif()
|
|
else()
|
|
# detached HEAD
|
|
configure_file("@GIT_DIR@/HEAD" "@GIT_DATA@/head-ref" COPYONLY)
|
|
endif()
|
|
|
|
if(NOT HEAD_HASH)
|
|
file(READ "@GIT_DATA@/head-ref" HEAD_HASH LIMIT 1024)
|
|
string(STRIP "${HEAD_HASH}" HEAD_HASH)
|
|
endif()
|