pre-commit hooks and $Id$ banners?

[Jamie Wilkinson]

This one time, at band camp, Igor Goryachev wrote:
>Hello, everyone.
>
>Are there any plans on implementing pre-commit hooks? How could I help
>with that?
>
>And is it possible (and how better?) to implement banners $Id$,
>$Revision$ support like in CVS or Subversion? I do really need this
>because I work with specific OTP software which handles this stuff
>and acts somehow according to it.

I hope not, I've always detested revision control software that modifies the
code after it's been committed.

However, you could probably do something like it with a pre-commit hook :)