[CMake] Getting the svn revision number of our source.

Eric Noulard eric.noulard at gmail.com
Wed Jul 2 03:04:59 EDT 2014


May be you can avoid localized output by setting LANG env var to "C".


Or you can ask svn for xml output which may not be localized e.g.

# Get the SVN revision number of an svn command line client is
# available.  This version will run at build time rather than only
# at configuration generation time.
FIND_PROGRAM(SVN_EXECUTABLE svn
  DOC "subversion command line client")

# only do this if we have an svn client.
if (SVN_EXECUTABLE)
    MACRO(Subversion_GET_REVISION dir variable)
      EXECUTE_PROCESS(COMMAND ${SVN_EXECUTABLE} --xml info ${dir}
        OUTPUT_VARIABLE ${variable}
        OUTPUT_STRIP_TRAILING_WHITESPACE)
      STRING(REGEX REPLACE ".*entry.*revision=\"([0-9]+)\"\n.*kind.*"
        "\\1" ${variable} "${${variable}}")
    ENDMACRO(Subversion_GET_REVISION)

    Subversion_GET_REVISION(${CMAKE_SOURCE_DIR} ORX_BLD_LVL)
endif ()

message(STATUS "SVN Revision Number is ${ORX_BLD_LVL}")




2014-07-02 1:04 GMT+02:00 Rick McGuire <object.rexx at gmail.com>:

> We like to include the SVN revision number in our build artifacts to help
> keep track of what version people are working with.  I found the following
> code on the mailing lists which appears to work fine:
>
> # Get the SVN revision number of an svn command line client is
> # available.  This version will run at build time rather than only
> # at configuration generation time.
> FIND_PROGRAM(SVN_EXECUTABLE svn
>   DOC "subversion command line client")
>
> # only do this if we have an svn client.
> if (SVN_EXECUTABLE)
>     MACRO(Subversion_GET_REVISION dir variable)
>       EXECUTE_PROCESS(COMMAND ${SVN_EXECUTABLE} info ${dir}
>         OUTPUT_VARIABLE ${variable}
>         OUTPUT_STRIP_TRAILING_WHITESPACE)
>       STRING(REGEX REPLACE "^(.*\n)?Revision: ([^\n]+).*"
>         "\\2" ${variable} "${${variable}}")
>     ENDMACRO(Subversion_GET_REVISION)
>
>     Subversion_GET_REVISION(${CMAKE_SOURCE_DIR} ORX_BLD_LVL)
> endif ()
>
> message(STATUS "SVN Revision Number is ${ORX_BLD_LVL}")
>
>
> Unfortunately, the first person not in the core team who building was running a Spanish language version of SVN, so the ORX_BLD_LEVEL variable ended up with the entire output of the svn info command because it could not find the string REVISION.  This was not a good thing!
>
>
> Is there a better way to obtain the SVN revision number that does not suffer from this sort of problem?
>
>
> Rick
>
>
> --
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-- 
Erk
L'élection n'est pas la démocratie -- http://www.le-message.org
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