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	git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223864 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			116 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			CMake
		
	
	
	
	
	
			
		
		
	
	
			116 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			CMake
		
	
	
	
	
	
| # CMake project that writes Subversion revision information to a header.
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| #
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| # Input variables:
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| #   FIRST_SOURCE_DIR  - First source directory
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| #   FIRST_NAME        - The macro prefix for the first repository's info
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| #   SECOND_SOURCE_DIR - Second source directory (opt)
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| #   SECOND_NAME       - The macro prefix for the second repository's info (opt)
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| #   HEADER_FILE       - The header file to write
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| #
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| # The output header will contain macros FIRST_REPOSITORY and FIRST_REVISION,
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| # and SECOND_REPOSITORY and SECOND_REVISION if requested, where "FIRST" and
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| # "SECOND" are substituted with the names specified in the input variables.
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| 
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| # Chop off cmake/modules/GetSVN.cmake 
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| get_filename_component(LLVM_DIR "${CMAKE_SCRIPT_MODE_FILE}" PATH)
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| get_filename_component(LLVM_DIR "${LLVM_DIR}" PATH)
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| get_filename_component(LLVM_DIR "${LLVM_DIR}" PATH)
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| 
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| # Handle strange terminals
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| set(ENV{TERM} "dumb")
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| 
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| macro(get_source_info_svn path revision repository)
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|   # If svn is a bat file, find_program(Subversion) doesn't find it.
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|   # Explicitly search for that here; Subversion_SVN_EXECUTABLE will override
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|   # the find_program call in FindSubversion.cmake.
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|   find_program(Subversion_SVN_EXECUTABLE NAMES svn svn.bat)
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| 
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|   # FindSubversion does not work with symlinks. See PR 8437
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|   if (NOT IS_SYMLINK "${path}")
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|     find_package(Subversion)
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|   endif()
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|   if (Subversion_FOUND)
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|     subversion_wc_info( ${path} Project )
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|     if (Project_WC_REVISION)
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|       set(${revision} ${Project_WC_REVISION} PARENT_SCOPE)
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|     endif()
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|     if (Project_WC_URL)
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|       set(${repository} ${Project_WC_URL} PARENT_SCOPE)
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|     endif()
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|   endif()
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| endmacro()
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| 
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| macro(get_source_info_git_svn path revision repository)
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|   find_program(git_executable NAMES git git.exe git.cmd)
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|   if (git_executable)
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|     execute_process(COMMAND ${git_executable} svn info
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|       WORKING_DIRECTORY ${path}
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|       TIMEOUT 5
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|       RESULT_VARIABLE git_result
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|       OUTPUT_VARIABLE git_output)
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|     if (git_result EQUAL 0)
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|       string(REGEX REPLACE "^(.*\n)?Revision: ([^\n]+).*"
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|         "\\2" git_svn_rev "${git_output}")
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|       set(${revision} ${git_svn_rev} PARENT_SCOPE)
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|       string(REGEX REPLACE "^(.*\n)?URL: ([^\n]+).*"
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|         "\\2" git_url "${git_output}")
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|       set(${repository} ${git_url} PARENT_SCOPE)
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|     endif()
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|   endif()
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| endmacro()
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| 
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| macro(get_source_info_git path revision repository)
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|   find_program(git_executable NAMES git git.exe git.cmd)
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|   if (git_executable)
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|     execute_process(COMMAND ${git_executable} log -1 --pretty=format:%H
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|       WORKING_DIRECTORY ${path}
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|       TIMEOUT 5
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|       RESULT_VARIABLE git_result
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|       OUTPUT_VARIABLE git_output)
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|     if (git_result EQUAL 0)
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|       set(${revision} ${git_output} PARENT_SCOPE)
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|     endif()
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|     execute_process(COMMAND ${git_executable} remote -v
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|       WORKING_DIRECTORY ${path}
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|       TIMEOUT 5
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|       RESULT_VARIABLE git_result
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|       OUTPUT_VARIABLE git_output)
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|     if (git_result EQUAL 0)
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|       string(REGEX REPLACE "^(.*\n)?[^ \t]+[ \t]+([^ \t\n]+)[ \t]+\\(fetch\\).*"
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|         "\\2" git_url "${git_output}")
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|       set(${repository} "${git_url}" PARENT_SCOPE)
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|     endif()
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|   endif()
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| endmacro()
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| 
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| function(get_source_info path revision repository)
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|   if (EXISTS "${path}/.svn")
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|     get_source_info_svn("${path}" revision repository)
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|   elseif (EXISTS "${path}/.git/svn")
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|     get_source_info_git_svn("${path}" revision repository)
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|   elseif (EXISTS "${path}/.git")
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|     get_source_info_git("${path}" revision repository)
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|   endif()
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| endfunction()
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| 
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| function(append_info name path)
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|   get_source_info("${path}" revision repository)
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|   string(STRIP "${revision}" revision)
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|   string(STRIP "${repository}" repository)
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|   file(APPEND "${HEADER_FILE}.txt"
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|     "#define ${name}_REVISION \"${revision}\"\n")
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|   file(APPEND "${HEADER_FILE}.txt"
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|     "#define ${name}_REPOSITORY \"${repository}\"\n")
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| endfunction()
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| 
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| append_info(${FIRST_NAME} "${FIRST_SOURCE_DIR}")
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| if(DEFINED SECOND_SOURCE_DIR)
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|   append_info(${SECOND_NAME} "${SECOND_SOURCE_DIR}")
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| endif()
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| 
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| # Copy the file only if it has changed.
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| execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
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|   "${HEADER_FILE}.txt" "${HEADER_FILE}")
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| file(REMOVE "${HEADER_FILE}.txt")
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| 
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