[Buildroot] [PATCH] merge_config.sh: Fix merging buildroot config files

[Petr Vorel <petr.vorel@gmail.com>]

Hi,

> > > >  Perhaps it's better to make the entire pattern explicit, like:

> > > > SED_CONFIG_EXP="s/^\(${CONFIG_PREFIX}[a-zA-Z0-9_]*\)=.*$\|^#
> > > > \(${CONFIG_PREFIX}[a-zA-Z0-9_]*\) is not set$/\1\2/p"

> > > > (\1\2 works because only one of the two subexpressions matches, so either
> > \1 or
> > > > \2 must be empty).
> > > I'd prefer original Masahiro's version - it's easier to read and without
> > > duplicity.

> > I agree with you. +1 for not having duplicity.
> > This patch makes merge_config.sh to work well in many more tests. I'm waiting
> > for Masahiro's version to be applied to
> > the his kbuild tree and then re-prepare the patch here.


> OK, I think Arnout's one is unreadable, but
> we can make it readable by splitting the complex pattern into two.

> I posted this for comparison.
> https://patchwork.kernel.org/patch/10667571/

LGTM. It's quite verbose, but more precise regexp is better and readability is also
good.


Kind regards,
Petr