[mythtv] SVN version info

[Pascal Favre]

From: "Tom Lichti" <tom at redpepperracing.com>
To: "Development of mythtv" <mythtv-dev at mythtv.org>
Sent: Tuesday, November 29, 2005 9:46 PM
Subject: Re: [mythtv] SVN version info


> Pascal Favre wrote:
>> I made a proposition for the ivtv project, which was accepted by them. This is the original text:
>>
>> Hello
>>
>> I use a 0.4.1 branch. dmesg displays: "ivtv:  version 0.4.1 (development svn snapshot revision  2839 ) loading"
>> For me I do not want to see the latest trunk version (this revision changes always). I want to see the last commited version for 
>> this branch.
>> With this revision number I can easily check if there were any changes made for my specific branch 
>> http://ivtvdriver.org/trac/browser/ivtv/branches/ (2834)
>>
>> I propose to use "svnversion -n -c ."  (630:2834, the second value should be used) instead of "svnversion -n ." (2839) in the 
>> makefile.
>>
>> When helping people it is much easier, because the used revision can be quickly checked against the latest commited change for 
>> the branch.
>> Help can be provided earlier, instead of the usual "do a svn update" first.
>>
>> Regards
>> Ruud
>
> I like this idea, is there any harm in changing the following line in mythcontext.h:
>
> #define MYTH_BINARY_VERSION "0.19.20051128-1"
>
> to something like
>
> #define MYTH_BINARY_VERSION "0.19.20051128-1 SVN Rev. 8089"
>
> or even better:
>
> #define MYTH_BINARY_VERSION "0.19.20051128-8089"
>
> Would it cause any problems elsewhere? After looking at the code, app_binary_version is used as the variable, defined as a 
> Qstring, so it should work, no?
>
> I'll try it on my checkout and see what happens... :)
>
> Tom

Bryan Mayland writes:
   How do they do it over at ivtv?
cat ivtv-svnversion.h
#define IVTV_DRIVER_VERSION_COMMENT "(development revision 3007M)"

One drawback will be that after a commit/update the whole project has to be recompiled. To minimize add this version.h only to the 
major source code.
Also the svnversion.h should not be recreated on make when the subversion revision didn't change.

Ruud