[Lazarus] embed git version info

[Mark Morgan Lloyd]

Graeme Geldenhuys wrote:
> On 2013-03-27 17:59, Sven Barth wrote:
>>> const
>>>   cGitRevision = '{$revision.inc}';
>> This won't work, because the string takes precedance over the directive.
> 
> Probably why my original version build script generates the whole line
> with identifier.
> 
> What about the following...
> 
>  const
>    cGitRevision = '''' + {$revision.inc} + '''';
> 
> Or are expressions not allowed in constant declarations either? Anyway,
> I think we gave enough hints for the original poster to find a suitable
> solution. I was never pro to spoon-feeding programmers. ;-)

Another approach- which I use for svn- is to generate the version string 
with quotes. At the point of use you can simply have something like

(*$IFDEF USE_SVN *)
   (*$IFDEF UNIX   *)
           rev= (*$I project_svnrevision.inc *) ;
   (*$ELSE         *)
           rev= 'unimplemented';
   (*$ENDIF        *)

This can be a bit tricky, since it needs something like tr on all 
platforms and Lazarus has problems with \ in the ExecuteBefore...Command 
Value setting. I'm sure somebody wants to tell us that MSEide handles 
them without complaint.

-- 
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]