Re: [gentoo-dev] RFC: using array variables in qt4-r2.eclass

[Michał Górny]

On Sun, 15 Jul 2012 13:00:47 +0200
Davide Pesavento <pesa@g.o> wrote:

> On Sat, Jul 14, 2012 at 4:00 PM, Michał Górny <mgorny@g.o>
> wrote:
> > On Sat, 14 Jul 2012 12:29:59 +0200
> > Davide Pesavento <pesa@g.o> wrote:
> >
> >> On Fri, Jul 13, 2012 at 3:50 PM, Alexis Ballier
> >> <aballier@g.o> wrote:
> >> > On Fri, 13 Jul 2012 15:26:58 +0200
> >> > Davide Pesavento <pesa@g.o> wrote:
> >> >
> >> >> > [...]
> >> >> >> +     # backward compatibility for non-array variables
> >> >> >> +     if [[ -n ${DOCS} ]] && [[ "$(declare -p DOCS
> >> >> >> 2>/dev/null
> >> >> >> 2>&1)" != "declare -a"* ]]; then
> >> >> >> +             dodoc ${DOCS} || die "dodoc failed"
> >> >> >> +     fi
> >> >> >> +     if [[ -n ${HTML_DOCS} ]] && [[ "$(declare -p HTML_DOCS
> >> >> >> 2>/dev/null 2>&1)" != "declare -a"* ]]; then
> >> >> >> +             dohtml -r ${HTML_DOCS} || die "dohtml failed"
> >> >> >> +     fi
> >> >> >>  }
> >> >> >
> >> >> > maybe issue an eqawarn in that case telling people to convert
> >> >> > to arrays; some time later make this an ewarn telling
> >> >> > non-array support will be removed and again later make this a
> >> >> > die :) (if you take that route i would expect you to start
> >> >> > converting packages to use arrays)
> >> >> >
> >> >>
> >> >> We have no intention of deprecating non-array variables in
> >> >> qt4-r2 eclass.
> >> >
> >> > why ? having two codepaths for the same thing, one being
> >> > inferior, sounds like a good reason to deprecate the inferior
> >> > one :)
> >> >
> >> > A.
> >> >
> >>
> >> Maintaining these two codepaths has practically zero cost, while
> >> forcing every ebuild using qt4-r2 to switch to arrays would waste
> >> developers' time which is better spent elsewhere.
> >>
> >> Furthermore, the non-array variant is not necessarily inferior,
> >> because it allows you to use bash globbing, brace expansion, etc...
> >
> > And arrays stopped to allow that overnight?
> >
>
> I mean that the following won't work as you might expect:
>
>     DOCS=("*.txt")

I doubt anyone would expect quoted string to be evaluated as glob.

-- 
Best regards,
Michał Górny