cmake/modules/VersionFromVCS.cmake

   1 # Adds version control information to the variable VERS. For
   2 # determining the Version Control System used (if any) it inspects the
   3 # existence of certain subdirectories under SOURCE_DIR (if provided as an
   4 # extra argument, otherwise uses CMAKE_CURRENT_SOURCE_DIR).
   5
   6 function(get_source_info_svn path revision repository)
   7   # If svn is a bat file, find_program(Subversion) doesn't find it.
   8   # Explicitly search for that here; Subversion_SVN_EXECUTABLE will override
   9   # the find_program call in FindSubversion.cmake.
  10   find_program(Subversion_SVN_EXECUTABLE NAMES svn svn.bat)
  11   find_package(Subversion)
  12
  13   # Subversion module does not work with symlinks, see PR8437.
  14   get_filename_component(realpath ${path} REALPATH)
  15   if(Subversion_FOUND)
  16     subversion_wc_info(${realpath} Project)
  17     if(Project_WC_REVISION)
  18       set(${revision} ${Project_WC_REVISION} PARENT_SCOPE)
  19     endif()
  20     if(Project_WC_URL)
  21       set(${repository} ${Project_WC_URL} PARENT_SCOPE)
  22     endif()
  23   endif()
  24 endfunction()
  25
  26 function(get_source_info_git path revision repository)
  27   find_package(Git)
  28   if(GIT_FOUND)
  29     execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --git-dir
  30       WORKING_DIRECTORY ${path}
  31       RESULT_VARIABLE git_result
  32       OUTPUT_VARIABLE git_output
  33       ERROR_QUIET)
  34     if(git_result EQUAL 0)
  35       string(STRIP "${git_output}" git_output)
  36       get_filename_component(git_dir ${git_output} ABSOLUTE BASE_DIR ${path})
  37       if(EXISTS "${git_dir}/svn/refs")
  38         execute_process(COMMAND ${GIT_EXECUTABLE} svn info
  39           WORKING_DIRECTORY ${path}
  40           RESULT_VARIABLE git_result
  41           OUTPUT_VARIABLE git_output)
  42         if(git_result EQUAL 0)
  43           string(REGEX REPLACE "^(.*\n)?Revision: ([^\n]+).*"
  44             "\\2" git_svn_rev "${git_output}")
  45           set(${revision} ${git_svn_rev} PARENT_SCOPE)
  46           string(REGEX REPLACE "^(.*\n)?URL: ([^\n]+).*"
  47             "\\2" git_url "${git_output}")
  48           set(${repository} ${git_url} PARENT_SCOPE)
  49         endif()
  50       else()
  51         execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse HEAD
  52           WORKING_DIRECTORY ${path}
  53           RESULT_VARIABLE git_result
  54           OUTPUT_VARIABLE git_output)
  55         if(git_result EQUAL 0)
  56           string(STRIP "${git_output}" git_output)
  57           set(${revision} ${git_output} PARENT_SCOPE)
  58         endif()
  59         execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --abbrev-ref --symbolic-full-name @{upstream}
  60           WORKING_DIRECTORY ${path}
  61           RESULT_VARIABLE git_result
  62           OUTPUT_VARIABLE git_output
  63           ERROR_QUIET)
  64         if(git_result EQUAL 0)
  65           string(REPLACE "/" ";" branch ${git_output})
  66           list(GET branch 0 remote)
  67         else()
  68           set(remote "origin")
  69         endif()
  70         execute_process(COMMAND ${GIT_EXECUTABLE} remote get-url ${remote}
  71           WORKING_DIRECTORY ${path}
  72           RESULT_VARIABLE git_result
  73           OUTPUT_VARIABLE git_output
  74           ERROR_QUIET)
  75         if(git_result EQUAL 0)
  76           string(STRIP "${git_output}" git_output)
  77           set(${repository} ${git_output} PARENT_SCOPE)
  78         else()
  79           set(${repository} ${path} PARENT_SCOPE)
  80         endif()
  81       endif()
  82     endif()
  83   endif()
  84 endfunction()
  85
  86 function(get_source_info path revision repository)
  87   if(EXISTS "${path}/.svn")
  88     get_source_info_svn("${path}" revision_info repository_info)
  89   else()
  90     get_source_info_git("${path}" revision_info repository_info)
  91   endif()
  92   set(${repository} "${repository_info}" PARENT_SCOPE)
  93   set(${revision} "${revision_info}" PARENT_SCOPE)
  94 endfunction()