Re: [PATCH v4] Allow update hooks to update refs on their own.

> Steven Grimm <koreth@midwinter.com> wrote:
> > This is useful in cases where a hook needs to modify an incoming commit
> > in some way, e.g., fixing whitespace errors, adding an annotation to
> > the commit message, noting the location of output from a profiling tool,
> > or committing to an svn repository using git-svn.
> ...
> > +/* Update hook exit code: hook has updated ref on its own */
> > +#define EXIT_CODE_REF_UPDATED 100
> 
> Hmm.  I would actually rather move the ref locking to before we run
> the update hook, so the ref is locked *while* the hook executes.