[Lazarus] embed git version info

[Mark Morgan Lloyd]

Mattias Gaertner wrote:
> On Thu, 28 Mar 2013 09:19:06 +0000
> Mark Morgan Lloyd <markMLl.lazarus at telemetry.co.uk> wrote:
> 
>> [...]
>> 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.
> 
> What problems?

The original command I used was

/bin/sh -c "echo -n \'`svnversion -n `\' >project_svnrevision.inc"

but at some point (if my memory is correct) Lazarus started trying to 
convert \ to / even on unix (I'm pretty sure we discussed it at the 
time). Thanks to somebody on CIX, I'm now using

/bin/sh -c "echo -n C`svnversion -n`C |tr A-G %-+ >project_svnrevision.inc"

I don't think that counts as "doing all the work for the OP" since he's 
still got to figure out why it works :-)

I remember that under certain conditions I've had problems compiling 
Lazarus where the FPC command to filter the SVN version hasn't yet been 
built (I forget the detail, but this was probably when trying to get it 
running on Solaris/SPARC). It does occur to me that a generic program to 
munge an svn or git version string into a quoted literal would be a good 
candidate for InstantFPC.

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

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