On Fri, Mar 22, 2013 at 05:06:28PM -0700, Jonathan Nieder wrote:

> > I'd rather not invent a new language. It will either not be featureful
> > enough, or will end up bloated. Or both. How about something like:
> >
> >   [include]
> >        exec = "
> >          case \"$GIT_DIR\" in)
> >            */dev/*) cat ~/.config/git/dev-config ;;
> >                  *) cat ~/.config/git/nondev-config ;;
> >           esac
> >        "
> Yes, an existing language like shell or lua would presumably be the
> way to go.  The scary aspect of shell is the "Prankster sets up a
> malicious configuration, asks a sysadmin to help in her repository"
> scenario.  Of course we already have that problem with command
> aliases, but if the sysadmin has perfect spelling then aliases would
> never trip, so...

And also external diff, textconv, clean/smudge filters, and I'm probably
forgetting more. Oh, and hooks. There's definitely a danger to running
arbitrary git commands against a maliciously constructed repo. We've
tried to make upload-pack safe, so you can at least make your own safe
copy to examine. We could probably do more safety checks when the
running user and repo owner or not the same, but it would be quite
complicated, and in practice it does not seem to be that huge a problem.

> Hopefully that's enough information for anyone interested to start and
> understand the relevant variables at play.

Yeah, I'm not planning to work on this, but I'd be happy to review
patches if somebody else wants to.

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