[SCRIPT] git-upstream: prints the tracking chain starting at the named ref

Howdy, all.

Here's a script I've sort of `grown' over the past few weeks.

I use it to quickly see where a tracking branch stands with respect to  
upstream refs _without_ actually fetching or even switching to the  
tracking branch.  This may not be useful for everyones' work-flows;  
but I find it handy. I'm posting because it may be of use to others  
(and feedback, if any, can only improve it).

Example:

	$ git upstream -v --abbrev master
	ce567d1... master* is behind 'origin/master' by 17 commits, and can  
be fast-forwarded.
	186458b... origin/master
	186458b... master@origin, git://git.kernel.org/pub/scm/git/git.git

For more info, try: git upstream -v -h

It's a perl script and uses Git.pm.  Tries to fit into git standard  
practices.  Supports colors (defaults to color like git branch),  
configs.  It has a few rough edges, but it's very usable.  The tiny  
pause before printing a remote tracking branch is ls-remote.  I hope  
the name doesn't conflict with anything.

I apologize for attaching rather than inserting in-line; but this is a  
complete file, not a patch and I also don't trust my mailer :-(