Jeff King <peff@xxxxxxxx> wrote:
> On Wed, Feb 28, 2018 at 04:07:18AM +0000, Eric Wong wrote:
>
> > > In the rest of git, die() makes a command exit with status 128. The
> > > trouble here is that our code in Perl is assuming the same meaning for
> > > die() but using perl's die builtin instead. That suggests a few
> > > options:
> > >
> > > a) We could override the meaning of die() in Git.pm. This feels
> > > ugly but if it works, it would be a very small patch.
> >
> > Unlikely to work since I think we use eval {} to trap exceptions
> > from die.
> >
> > > b) We could forbid use of die() and use some git_die() instead (but
> > > with a better name) for our own error handling.
> >
> > Call sites may be dual-use: "die" can either be caught by an
> > eval or used to show an error message to the user.
<snip>
> > > d) We could wrap each command in an eval {...} block to convert the
> > > result from die() to exit 128.
> >
> > I prefer option d)
>
> FWIW, I agree with all of that. You can do (d) without an enclosing eval
> block by just hooking the __DIE__ handler, like:
>
> $SIG{__DIE__} = sub {
> print STDERR "fatal: @_\n";
> exit 128;
> };
Looks like it has the same problems I pointed out with a) and b).
