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				| # - Returns a version string from Git | |
| # | |
| # These functions force a re-configure on each git commit so that you can | |
| # trust the values of the variables in your build system. | |
| # | |
| #  get_git_head_revision(<refspecvar> <hashvar> [<additional arguments to git describe> ...]) | |
| # | |
| # Returns the refspec and sha hash of the current head revision | |
| # | |
| #  git_describe(<var> [<additional arguments to git describe> ...]) | |
| # | |
| # Returns the results of git describe on the source tree, and adjusting | |
| # the output so that it tests false if an error occurs. | |
| # | |
| #  git_get_exact_tag(<var> [<additional arguments to git describe> ...]) | |
| # | |
| # Returns the results of git describe --exact-match on the source tree, | |
| # and adjusting the output so that it tests false if there was no exact | |
| # matching tag. | |
| # | |
| # 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 Iowa State University 2009-2010. | |
| # 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) | |
|  | |
| if(__get_git_revision_description) | |
| 	return() | |
| endif() | |
| set(__get_git_revision_description YES) | |
|  | |
| # We must run the following at "include" time, not at function call time, | |
| # to find the path to this module rather than the path to a calling list file | |
| get_filename_component(_gitdescmoddir ${CMAKE_CURRENT_LIST_FILE} PATH) | |
|  | |
| function(get_git_head_revision _refspecvar _hashvar) | |
| 	set(GIT_PARENT_DIR "${CMAKE_CURRENT_SOURCE_DIR}") | |
| 	set(GIT_DIR "${GIT_PARENT_DIR}/.git") | |
| 	while(NOT EXISTS "${GIT_DIR}")	# .git dir not found, search parent directories | |
| 		set(GIT_PREVIOUS_PARENT "${GIT_PARENT_DIR}") | |
| 		get_filename_component(GIT_PARENT_DIR ${GIT_PARENT_DIR} PATH) | |
| 		if(GIT_PARENT_DIR STREQUAL GIT_PREVIOUS_PARENT) | |
| 			# We have reached the root directory, we are not in git | |
| 			set(${_refspecvar} "GITDIR-NOTFOUND" PARENT_SCOPE) | |
| 			set(${_hashvar} "GITDIR-NOTFOUND" PARENT_SCOPE) | |
| 			return() | |
| 		endif() | |
| 		set(GIT_DIR "${GIT_PARENT_DIR}/.git") | |
| 	endwhile() | |
| 	# check if this is a submodule | |
| 	if(NOT IS_DIRECTORY ${GIT_DIR}) | |
| 		file(READ ${GIT_DIR} submodule) | |
| 		string(REGEX REPLACE "gitdir: (.*)\n$" "\\1" GIT_DIR_RELATIVE ${submodule}) | |
| 		get_filename_component(SUBMODULE_DIR ${GIT_DIR} PATH) | |
| 		get_filename_component(GIT_DIR ${SUBMODULE_DIR}/${GIT_DIR_RELATIVE} ABSOLUTE) | |
| 	endif() | |
| 	set(GIT_DATA "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/git-data") | |
| 	if(NOT EXISTS "${GIT_DATA}") | |
| 		file(MAKE_DIRECTORY "${GIT_DATA}") | |
| 	endif() | |
|  | |
| 	if(NOT EXISTS "${GIT_DIR}/HEAD") | |
| 		return() | |
| 	endif() | |
| 	set(HEAD_FILE "${GIT_DATA}/HEAD") | |
| 	configure_file("${GIT_DIR}/HEAD" "${HEAD_FILE}" COPYONLY) | |
|  | |
| 	configure_file("${_gitdescmoddir}/GetGitRevisionDescription.cmake.in" | |
| 		"${GIT_DATA}/grabRef.cmake" | |
| 		@ONLY) | |
| 	include("${GIT_DATA}/grabRef.cmake") | |
|  | |
| 	set(${_refspecvar} "${HEAD_REF}" PARENT_SCOPE) | |
| 	set(${_hashvar} "${HEAD_HASH}" PARENT_SCOPE) | |
| endfunction() | |
|  | |
| function(git_describe _var) | |
| 	if(NOT GIT_FOUND) | |
| 		find_package(Git QUIET) | |
| 	endif() | |
| 	get_git_head_revision(refspec hash) | |
| 	if(NOT GIT_FOUND) | |
| 		set(${_var} "GIT-NOTFOUND" PARENT_SCOPE) | |
| 		return() | |
| 	endif() | |
| 	if(NOT hash) | |
| 		set(${_var} "HEAD-HASH-NOTFOUND" PARENT_SCOPE) | |
| 		return() | |
| 	endif() | |
|  | |
| 	# TODO sanitize | |
| 	#if((${ARGN}" MATCHES "&&") OR | |
| 	#	(ARGN MATCHES "||") OR | |
| 	#	(ARGN MATCHES "\\;")) | |
| 	#	message("Please report the following error to the project!") | |
| 	#	message(FATAL_ERROR "Looks like someone's doing something nefarious with git_describe! Passed arguments ${ARGN}") | |
| 	#endif() | |
|  | |
| 	#message(STATUS "Arguments to execute_process: ${ARGN}") | |
|  | |
| 	execute_process(COMMAND | |
| 		"${GIT_EXECUTABLE}" | |
| 		describe | |
| 		${hash} | |
| 		${ARGN} | |
| 		WORKING_DIRECTORY | |
| 		"${CMAKE_SOURCE_DIR}" | |
| 		RESULT_VARIABLE | |
| 		res | |
| 		OUTPUT_VARIABLE | |
| 		out | |
| 		ERROR_QUIET | |
| 		OUTPUT_STRIP_TRAILING_WHITESPACE) | |
| 	if(NOT res EQUAL 0) | |
| 		set(out "${out}-${res}-NOTFOUND") | |
| 	endif() | |
|  | |
| 	set(${_var} "${out}" PARENT_SCOPE) | |
| endfunction() | |
|  | |
| function(git_describe_checkout _var) | |
| 	if(NOT GIT_FOUND) | |
| 		find_package(Git QUIET) | |
| 	endif() | |
| 	get_git_head_revision(refspec hash) | |
| 	if(NOT GIT_FOUND) | |
| 		set(${_var} "GIT-NOTFOUND" PARENT_SCOPE) | |
| 		return() | |
| 	endif() | |
| 	if(NOT hash) | |
| 		set(${_var} "HEAD-HASH-NOTFOUND" PARENT_SCOPE) | |
| 		return() | |
| 	endif() | |
|  | |
| 	# TODO sanitize | |
| 	#if((${ARGN}" MATCHES "&&") OR | |
| 	#	(ARGN MATCHES "||") OR | |
| 	#	(ARGN MATCHES "\\;")) | |
| 	#	message("Please report the following error to the project!") | |
| 	#	message(FATAL_ERROR "Looks like someone's doing something nefarious with git_describe! Passed arguments ${ARGN}") | |
| 	#endif() | |
|  | |
| 	#message(STATUS "Arguments to execute_process: ${ARGN}") | |
|  | |
| 	execute_process(COMMAND | |
| 		"${GIT_EXECUTABLE}" | |
| 		describe | |
| 		--tags | |
| 		--dirty=-dirty | |
| 		--long | |
| 		${ARGN} | |
| 		WORKING_DIRECTORY | |
| 		"${CMAKE_SOURCE_DIR}" | |
| 		RESULT_VARIABLE | |
| 		res | |
| 		OUTPUT_VARIABLE | |
| 		out | |
| 		ERROR_QUIET | |
| 		OUTPUT_STRIP_TRAILING_WHITESPACE) | |
| 	if(NOT res EQUAL 0) | |
| 		set(out "${out}-${res}-NOTFOUND") | |
| 	endif() | |
|  | |
| 	set(${_var} "${out}" PARENT_SCOPE) | |
| endfunction() | |
|  | |
| function(git_get_exact_tag _var) | |
| 	git_describe(out --exact-match ${ARGN}) | |
| 	set(${_var} "${out}" PARENT_SCOPE) | |
| endfunction() |