help with grep search string

Hi,

I want to try and improve the IDE to detect SVN or Git repositories, and still extract the correct latest
revision number. I have the following output which is part of the commit message generated by Git, when it
syncs with a SubVersion repository.

I'm trying to write a grep command that will extract the revision number only.
eg:
  16557
  16556
  16555
  ...

Can anybody help me please?  I wrote the following which asks git to only output commit messages containing
"git-svn-id", then I run that through standard grep extracting only the line containing the search
string. It's this latter part that I want to fix to only return the revision number.

Any help would be greatly appreciated.

$ git log --grep="git-svn-id:" | grep git-svn-id

============  Sample output  ===================
    git-svn-id: http://svn2.freepascal.org/svn/lazarus/trunk <at> 16557 4005530d-fff6-0310-9dd1-cebe43e6787f
    git-svn-id: http://svn2.freepascal.org/svn/lazarus/trunk <at> 16556 4005530d-fff6-0310-9dd1-cebe43e6787f
    git-svn-id: http://svn2.freepascal.org/svn/lazarus/trunk <at> 16555 4005530d-fff6-0310-9dd1-cebe43e6787f
    git-svn-id: http://svn2.freepascal.org/svn/lazarus/trunk <at> 16554 4005530d-fff6-0310-9dd1-cebe43e6787f
    git-svn-id: http://svn2.freepascal.org/svn/lazarus/trunk <at> 16553 4005530d-fff6-0310-9dd1-cebe43e6787f
    git-svn-id: http://svn2.freepascal.org/svn/lazarus/trunk <at> 16552 4005530d-fff6-0310-9dd1-cebe43e6787f

=======================================

Regards,
  - Graeme -

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fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal
http://opensoft.homeip.net/fpgui/

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