[Toybox] kconfig replacement

[David Seikel]

On Sat, 18 Feb 2012 23:37:17 -0600 Rob Landley <rob at landley.net> wrote:

> On 02/17/2012 03:52 PM, Kai Trukenmueller wrote:
> > attached is scripts/mkconfig.awk which could replace kconfig/*.
> 
> Hmmm.  Interesting.
> 
> I'm by no means an awk expert, but then I didn't know anything about
> sed before I had to turn busybox's half implementation into a real
> one that autoconf could use.  I'll need to write an awk eventually...
> 
> > It could be used from the makefile for the targets:
> > 
> > config:
> >     awk -f scripts/mkconfig.awk Config.in toys/*.c
> > 
> > allyesconfig:
> >     yes | awk -f script/mkconfig.awk Config.in toys/*.c
> > 
> > allnoconfig:
> >     yes n | awk -f scripts/mkconfig.awk Config.in toys/*.c
> > 
> > defaultconfig:
> >     yes "" | awk -f scripts/mkconfig.awk Config.in toys/*.c
> > 
> > 
> > it is not a replacement for menuconfig.
> 
> Which worries me a bit.
> 
> The plan for the new menuconfig was to just emit ANSI sequences rather
> than using ncurses, but it still needs to interactively respond to
> cursor keys (which are themselves multi-character sequences), maintain
> internal state (what you've selected and what you haven't, plus
> dependency resolution), and then write out the result.
> 
> I have no idea how to do this in awk.  But then, I don't know awk.
> 
> Awk is a SUSv4 command I plan to add to toybox, if this _can_ be
> implemented in awk by all means let's do it. The alternative is to
> write it in C.
> 
> We could also do just menuconfig in C, and do the others in awk, but
> then they can't share infrastructure.  Running menuconfig and then
> exiting immediately is pretty much either "defconfig" or "oldconfig"
> depending on context...

This is around about the time that people convert awk to perl and keep
going.  Don't think either of us want that.

C that constructs awk commands then runs them maybe?  Not actually
looked at this yet.

-- 
A big old stinking pile of genius that no one wants
coz there are too many silver coated monkeys in the world.
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