[mythtv] SVN version info

[Kevin Kuphal]

Allan Stirling wrote:

> Currently, there is no global SVN version number available. This means 
> that it can be quite difficult for someone running SVN to be able to 
> discover the version number he is actually running.
>
> I've been thinking about how to get this functionality into the final 
> executables and given the current version of SVN, there are a number 
> of possibilities:
>
> 1. Do without. If someone is compiling for SVN, they should KNOW what 
> revision they are running. This is the current state - The only 
> version information kept is the ABI version and the release.
>
> 2. Checkin scripts. These would be run from the client side on a 
> checkin. Error prone and increases dev overhead. This is the 
> recommended method by the SVN devs, from what I can see.
>
> 3. Autogenerate a version singleton as part of the configure script.
>
>
> I'm thinking about how to implement 3:
>
> Add a header to each of the text files in Myth, with the $revision$ 
> and/or $id$ svn keywords. These are automatically filled in by the SVN 
> server on each checkout. For an example, look at 
> mythtv/libs/libmythsoundtouch/SoundTouch.cpp (yes, evaluation of 
> keywords appears to be enabled on at least some of the SVN tree)
>
> During configure (or build), scan a specific place in all source files 
> (head -nx) for the highest $revision$ tag. Once you've scanned all 
> files, grab the associated date from $id$, then create locally in the 
> build tree a .h/.cpp with a singleton version function.
>
> Problems:
>
> 1. Requires an extra step for external resyncs (strip out the 
> generated headers / merge / readd headers).
> 2. Increases build / configure time.
>
>
> So, what's the general concensus? Is this something worthwhile?
>
> Have I missed something obvious?

Type "svn info" from your checked out folder and it will tell you the 
revision number you are on.

Kevin

-- 
Looking for affordable webhosting?  http://www.sitecity.net