Re: repository revision -> header file?

On May 12, 2006, at 00:57, Ralf W. Grosse-Kunstleve wrote:

> I see SVN maintains a global revision number for a repository. I'd
> like to access this revision number via a C or C++ header file, e.g.
>
> myproj/version.h:
>
> #define MYPROJ_REPOSITORY_REVISION $RepositoryRevision$
>
> I.e. each time svn update is run, I'd like to get the same number
> that is printed at the end ("Updated to revision 4548."):
>
> #define MYPROJ_REPOSITORY_REVISION 4548
>
> This would allow me to easily adjust to evolving library code:
>
> #include <myproj/version.h>
> #if MYPROJ_REPOSITORY_REVISION < 4548
> // use old interfaces
> #else
> // use new interfaces
> #endif
>
> Can this somehow be done with SVN?

Yes, assuming you have a build system of some sort (even just a
simply Makefile that you use). It's a FAQ:

http://subversion.tigris.org/faq.html#version-value-in-source

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Received on Fri May 12 13:19:39 2006