[Toybox] Would someone please explain what bash is doing here?

[enh]

On Thu, Mar 12, 2020 at 4:02 PM Rob Landley <rob at landley.net> wrote:
>
> On 3/10/20 11:50 AM, enh wrote:
> > On Tue, Mar 10, 2020 at 8:42 AM Chet Ramey <chet.ramey at case.edu> wrote:
> >> On 3/9/20 11:16 PM, Rob Landley wrote:
> >>>> -- but i can't even imagine a world in
> >>>> which someone comes to me asking for more *dash* compatibility :-)
> >>>
> >>> It was a mistake Ubuntu made and pushed "upstream" into debian. The goal was
> >>> never "remove everything that's not in posix", that was just a side effect.
> >>
> >> Minimalism and POSIX conformance are the big selling points now, at least
> >> on the shell side of things.
>
> I dunno about minimalism, but I'm trying to get toys/pending/sh.c in under 3500
> lines. (It's 2400 now, maybe 100 of which is debug code. So it's still feasible,
> but tight. And yeah, that's pulling in some subset of lib/*.c's 5600 lines, so
> maybe 9k lines total. Plus my original plan for command history editing went out
> the window, so I have to redo that...)
>
> Then again, I'm trying to implement more functionality in that budget than dash
> is. Does that make it less minimalist?
>
> > except like you said, bash (like MS Word) has that property where most
> > people only use a few percent of the functionality, but everyone's
> > using a different few percent. the only bugs i see reported against
> > mksh (which is what Android's used for the last ~decade) are basically
> > "i just want this one thing from bash". i'm not super excited about
> > suffering another shell transition, especially because we have another
> > 10 years worth of accumulated scripts since the last time, but a shell
> > that explicitly aims to be bash-compatible (unlike mksh, which
> > doesn't) is the only thing that would make it even worth thinking
> > about.
>
> One approach is to add a /bin/bash symlink pointing to toysh (when it's promoted
> out of pending) and let people try that for a bit, and then worry about if/when
> to point /bin/sh at it after it's gotten some testing.

yeah, that's an interesting idea... remind me of that when the time comes.

> Rob
> _______________________________________________
> Toybox mailing list
> Toybox at lists.landley.net
> http://lists.landley.net/listinfo.cgi/toybox-landley.net