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lyx_mirror/development/cmake/scripts/LyXGetVersion.cmake
Kornel Benko 81afd10fc7 Cmake build: Moved creation of variable LYX_GIT_COMMIT_HASH to development/cmake/scripts/LyXGetVersion.cmake.
1.) The only file which needs this define is src/version.cpp. Our use in config.h
resulted in recompiling most of our sources.
With this change, only version.cpp needs to be recompiled.

2.) Without reconfiguring, the old commit hash was still valid. Now the
detection of commit hash is done at compile time.
2014-10-24 16:58:54 +02:00

78 lines
3.1 KiB
CMake

# Copyright (c) 2012-2014, Kornel Benko, <kornel@lyx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
#
# To call this script, one has to provide following parameters
# TOP_SRC_DIR
# TOP_CMAKE_PATH
# TOP_BINARY_DIR
# LYX_DATE: to be used if not under git control
set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
set(LYX_GIT_COMMIT_HASH "none")
FIND_PROGRAM(LYX_GITVERSION git)
if(LYX_GITVERSION)
# Override the value from configure.ac, if possible
EXECUTE_PROCESS(COMMAND ${LYX_GITVERSION} "log" "-1" "--format=%h %ci"
WORKING_DIRECTORY "${TOP_SRC_DIR}"
OUTPUT_VARIABLE LYX_DATEtmp OUTPUT_STRIP_TRAILING_WHITESPACE)
if(LYX_DATEtmp MATCHES "^([0-9a-f]+) ([0-9]+-[0-9]+-[0-9]+)")
set(LYX_GITHASH ${CMAKE_MATCH_1})
set(LYX_DATE ${CMAKE_MATCH_2})
message(STATUS "Git-hash = ${LYX_GITHASH}")
endif()
EXECUTE_PROCESS(COMMAND ${LYX_GITVERSION} log -1 "--pretty=format:%H"
WORKING_DIRECTORY "${TOP_SRC_DIR}" OUTPUT_VARIABLE lyxgitcommit OUTPUT_STRIP_TRAILING_WHITESPACE)
if (lyxgitcommit MATCHES "^[0-9a-f]+$")
set(LYX_GIT_COMMIT_HASH ${lyxgitcommit})
endif()
endif()
foreach(_hf lyx_date lyx_commit_hash)
if(NOT EXISTS ${TOP_BINARY_DIR}/${_hf}.h)
configure_file(${TOP_CMAKE_PATH}/${_hf}.h.cmake ${TOP_BINARY_DIR}/${_hf}.h)
else()
configure_file(${TOP_CMAKE_PATH}/${_hf}.h.cmake ${TOP_BINARY_DIR}/${_hf}.tmp)
message(STATUS "Created ${TOP_BINARY_DIR}/${_hf}.tmp")
EXECUTE_PROCESS(
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${TOP_BINARY_DIR}/${_hf}.tmp ${TOP_BINARY_DIR}/${_hf}.h
ERROR_VARIABLE copy_err
)
if(copy_err)
message(FATAL_ERROR "${CMAKE_COMMAND} -E copy_if_different not working")
endif()
EXECUTE_PROCESS(
COMMAND ${CMAKE_COMMAND} -E remove ${TOP_BINARY_DIR}/${_hf}.tmp
)
endif()
endforeach()