[CMake] Put svn revision into file on every "make install"

[Eric Noulard]

2009/6/15 Jean-Pierre Bergamin <james at ractive.ch>:
> Hello Eric
>
>> 2009/6/15 Jean-Pierre Bergamin <james at ractive.ch>:
>> > Hello cmake users
>> >
>> > I want to put the current subversion revision into a script every time I
>> run
>> > "make install".
>> > Currently, I use configure_file() to replace a variable in the script,
> but
>> > this only updates the script when either the script or something in
>> > CMakeLists.txt changes.
>> >
>> > Is there a way to update the script every time I run "make install"?
>>
>> Did you try with
>> install([[SCRIPT <file>] [CODE <code>]] [...])
>>
>> using this you may execute a CMake script at install time.
>
> Good idea. This may lead to what I'm looking for. My svn_revision.cmake
> script now looks like this:
>
> find_package(Subversion)
> if(Subversion_FOUND)
>        Subversion_WC_INFO(${ER_SOURCE_DIR} ER)
>        set(REVISION ${ER_WC_REVISION})
>        configure_file(${ER_SOURCE_DIR}/scripts/version.sh.in
> ${ER_SOURCE_DIR}/scripts/version.sh @ONLY)
> endif(Subversion_FOUND)
>
> It is invoked in CMakeLists.txt with "install(SCRIPT svn_revision.cmake)".
> The only problem I have now is that ${ER_SOURCE_DIR} is not defined in the
> external script. Is there a way to pass arguments to this svn_revision.cmake
> script?

I don't know if you can pass arguments. But I personnally do it in another way
using configure_file + install(script like this:

CONFIGURE_FILE(svn_revision.cmake.in svn_revision.cmake @ONLY)
INSTALL(SCRIPT ${CMAKE_BINARY_DIR}/svn_revision.cmake)

Now the content of "svn_revision.cmake.in" should be something like:

find_package(Subversion)
if(Subversion_FOUND)
        Subversion_WC_INFO(@ER_SOURCE_DIR@ ER)
        set(REVISION @ER_WC_REVISION@)
        configure_file(@ER_SOURCE_DIR@/scripts/version.sh.in
                                 @ER_SOURCE_DIR@/scripts/version.sh @ONLY)
endif(Subversion_FOUND)

-- 
Erk