Re: I want "fast forward my workdir to upstream if it's safe"

> For the past few years, within any given 12 hour period, at least
> one person on #git would come up with the use case with which I'm
> really familiar (having needed it many times myself):
>
>  I have a workdir tracking a remote.
>  I may or may not have made local edits... I can't remember.
>  I may or may not have made local commits... I can't remember.
>  But the upstream might now have changed... please update me *safely*.
>
> Seriously, this comes up, a lot.  Typically, from a cron job updater,
> but often just "what can I do to make sure I'm up to date".
>
> So, what I need is a command, likely an option to "git merge" that  
> says "do
> everything that a git merge would do except abort if it would have  
> been a
> merge commit".  In other words, abort if the workdir is dirty or is  
> not a
> fast-forward update to the upstream.  Bonus if it exits non-zero if
> something went wrong.
>
> Please don't tell me "use these three commands in this script".
> I want a *command* I can tell people in #git.