1# CMake project that writes Subversion revision information to a header. 2# 3# Input variables: 4# FIRST_SOURCE_DIR - First source directory 5# FIRST_NAME - The macro prefix for the first repository's info 6# SECOND_SOURCE_DIR - Second source directory (opt) 7# SECOND_NAME - The macro prefix for the second repository's info (opt) 8# HEADER_FILE - The header file to write 9# 10# The output header will contain macros FIRST_REPOSITORY and FIRST_REVISION, 11# and SECOND_REPOSITORY and SECOND_REVISION if requested, where "FIRST" and 12# "SECOND" are substituted with the names specified in the input variables. 13 14# Chop off cmake/modules/GetSVN.cmake 15get_filename_component(LLVM_DIR "${CMAKE_SCRIPT_MODE_FILE}" PATH) 16get_filename_component(LLVM_DIR "${LLVM_DIR}" PATH) 17get_filename_component(LLVM_DIR "${LLVM_DIR}" PATH) 18 19# Handle strange terminals 20set(ENV{TERM} "dumb") 21 22macro(get_source_info_svn path revision repository) 23 # If svn is a bat file, find_program(Subversion) doesn't find it. 24 # Explicitly search for that here; Subversion_SVN_EXECUTABLE will override 25 # the find_program call in FindSubversion.cmake. 26 find_program(Subversion_SVN_EXECUTABLE NAMES svn svn.bat) 27 28 # FindSubversion does not work with symlinks. See PR 8437 29 if (NOT IS_SYMLINK "${path}") 30 find_package(Subversion) 31 endif() 32 if (Subversion_FOUND) 33 subversion_wc_info( ${path} Project ) 34 if (Project_WC_REVISION) 35 set(${revision} ${Project_WC_REVISION} PARENT_SCOPE) 36 endif() 37 if (Project_WC_URL) 38 set(${repository} ${Project_WC_URL} PARENT_SCOPE) 39 endif() 40 endif() 41endmacro() 42 43macro(get_source_info_git_svn path revision repository) 44 find_program(git_executable NAMES git git.exe git.cmd) 45 if (git_executable) 46 execute_process(COMMAND ${git_executable} svn info 47 WORKING_DIRECTORY ${path} 48 TIMEOUT 5 49 RESULT_VARIABLE git_result 50 OUTPUT_VARIABLE git_output) 51 if (git_result EQUAL 0) 52 string(REGEX REPLACE "^(.*\n)?Revision: ([^\n]+).*" 53 "\\2" git_svn_rev "${git_output}") 54 set(${revision} ${git_svn_rev} PARENT_SCOPE) 55 string(REGEX REPLACE "^(.*\n)?URL: ([^\n]+).*" 56 "\\2" git_url "${git_output}") 57 set(${repository} ${git_url} PARENT_SCOPE) 58 endif() 59 endif() 60endmacro() 61 62macro(get_source_info_git path revision repository) 63 find_program(git_executable NAMES git git.exe git.cmd) 64 if (git_executable) 65 execute_process(COMMAND ${git_executable} log -1 --pretty=format:%H 66 WORKING_DIRECTORY ${path} 67 TIMEOUT 5 68 RESULT_VARIABLE git_result 69 OUTPUT_VARIABLE git_output) 70 if (git_result EQUAL 0) 71 set(${revision} ${git_output} PARENT_SCOPE) 72 endif() 73 execute_process(COMMAND ${git_executable} remote -v 74 WORKING_DIRECTORY ${path} 75 TIMEOUT 5 76 RESULT_VARIABLE git_result 77 OUTPUT_VARIABLE git_output) 78 if (git_result EQUAL 0) 79 string(REGEX REPLACE "^(.*\n)?[^ \t]+[ \t]+([^ \t\n]+)[ \t]+\\(fetch\\).*" 80 "\\2" git_url "${git_output}") 81 set(${repository} "${git_url}" PARENT_SCOPE) 82 endif() 83 endif() 84endmacro() 85 86function(get_source_info path revision repository) 87 if (EXISTS "${path}/.svn") 88 get_source_info_svn("${path}" revision repository) 89 elseif (EXISTS "${path}/.git/svn") 90 get_source_info_git_svn("${path}" revision repository) 91 elseif (EXISTS "${path}/.git") 92 get_source_info_git("${path}" revision repository) 93 endif() 94endfunction() 95 96function(append_info name path) 97 get_source_info("${path}" revision repository) 98 string(STRIP "${revision}" revision) 99 string(STRIP "${repository}" repository) 100 file(APPEND "${HEADER_FILE}.txt" 101 "#define ${name}_REVISION \"${revision}\"\n") 102 file(APPEND "${HEADER_FILE}.txt" 103 "#define ${name}_REPOSITORY \"${repository}\"\n") 104endfunction() 105 106append_info(${FIRST_NAME} "${FIRST_SOURCE_DIR}") 107if(DEFINED SECOND_SOURCE_DIR) 108 append_info(${SECOND_NAME} "${SECOND_SOURCE_DIR}") 109endif() 110 111# Copy the file only if it has changed. 112execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different 113 "${HEADER_FILE}.txt" "${HEADER_FILE}") 114file(REMOVE "${HEADER_FILE}.txt") 115 116