Hello!

The capricious CI for BibleTime again fails to build the latest SVN trunk version of Sword with CMake:

-- Found Subversion: /usr/bin/svn (found version "1.9.7")

CMake Error at /usr/local/cmake-3.12.4/share/cmake-3.12/Modules/FindSubversion.cmake:99 (message):

Command "/usr/bin/svn info /tmp/tmp.Tii77pWpje/source" failed with output:

  svn: E155007: '/tmp/tmp.Tii77pWpje/source' is not a working copy


I took a look at the recent Subversion related changes in CMakeLists.txt and propose to add detection that "${CMAKE_CURRENT_SOURCE_DIR}/.svn" exists and that the the Subversion client executable is available on the system, e.g.:

  if(IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/.svn")
    find_package(Subversion)
    if(COMMAND Subversion_WC_INFO)
      Subversion_WC_INFO("${CMAKE_CURRENT_SOURCE_DIR}" MYSVN
                         IGNORE_SVN_FAILURE)
    endif()
  endif()

Note also that I double quoted "${CMAKE_CURRENT_SOURCE_DIR}" in the above so that directories with spaces wouldn't cause an incorrect number of arguments getting passed to Subversion_WC_INFO(). Using if(COMMAND Subversion_WC_INFO) instead of if(Subversion_FOUND) is safer as it allows users to provide their own Subversion_WC_INFO() command in cases where FindSubversion() doesn't work for them (e.g. when subversion is not installed, not found by FindSubversion.cmake or FindSubversion fails to define Subversion_WC_INFO()).


Best regards,
J
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