Re: [PATCH 6/6] hook: teach --porcelain mode

[Emily Shaffer <emilyshaffer@google.com>]

On Wed, Dec 11, 2019 at 02:07:45PM -0800, Junio C Hamano wrote:
> Emily Shaffer <emilyshaffer@google.com> writes:
> 
> >> So, a Porcelain script cannot learn where the hook command comes
> >> from,
> >
> > Not as I had envisioned.
> >
> >> or what the precedence order of each line of the output is?
> >> 
> >
> > They're printed in the order they should be executed; the explicit order
> > isn't provided.
> >
> >
> > I suppose I had considered really just the one use case listed in the
> > commit message, especially since other inquiry into the hooks to be run
> > can be done against the config files themselves. But - I'm of course
> > open to use cases. What did you have in mind?
> 
> A tool to diagnose why the hooks are not firing in the order the
> user intended them to, for example?
> 
> Or a tool to help editing the list of hooks.
FWIW, the next step for this 'git hook' tool is just such a mode,
although I certainly won't argue with anybody who wants to interact with
them somewhat differently.

Does allowing a format string solve this, then? Maybe it's less
Git-idiomatic, but it seems to me to be a very explicit format contract
that the scripter can write, and probably more useful than guessing what
info one might want when scripting. It also doesn't paint us into a
corner if we add other interesting info later.

Unless you have a complaint about it, I'll try to add that kind of
argument instead of --porcelain for this command.

 - Emily