Re: A truely ugly hack...

[Mark Mitchell <mark at codesourcery dot com>]

>>>>> "Bruce" == Bruce Korb <bkorb@cruzio.com> writes:

    Bruce> *that* special?  That renders #3 (and #2) completely
    Bruce> impossible.  Unless you implement a Truely Ugly Hack.

I believe the standard hack is something like this, which we use on
x86-64.org in `loginfo':

  ^x86-64-ABI (/home/cvs/bin/x8664-update-abi.sh &) >> $CVSROOT/CVSROOT/commitlog

Then, that script looks like:

  # Sleep a few seconds so that we're not doing this at the same time
  # that the commit is occurring.
  sleep 5

  # Update the ABI document.
  cd ~anoncvs/x86-64-ABI || exit 1

  cvs -q update -d
  make abi.pdf

You could replace the last bits with something that did more what you
want.

This script is perhaps not robust in general -- but it works OK in
practice.  The key thing is that it runs in the background, which lets
the commit finish.  You then do whatever other action you want to do
afterwards; either via the crude `sleep' hack, or via a proper loop of
some kind.

Of course, this still leaves a window where the new files are checked
in, but the generated files are not updated -- but that window is
pretty small.

--
Mark Mitchell                   mark@codesourcery.com
CodeSourcery, LLC               http://www.codesourcery.com