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Date: Sun, 11 Mar 2012 18:00:46 -0700
From: Brian Harring <ferringb@gmail.com>
To: gentoo-dev@lists.gentoo.org
Subject: Re: [gentoo-dev] RFD: EAPI specification in ebuilds
Message-ID: <20120312010046.GC7579@localhost>
References: <4F58FC55.7070005@orlitzky.com>
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On Fri, Mar 09, 2012 at 06:52:40PM +0100, Micha?? G??rny wrote:
> On Fri, 09 Mar 2012 12:31:24 -0500
> Michael Orlitzky <michael@orlitzky.com> wrote:
>
> > On 03/09/12 12:11, Ulrich Mueller wrote:
> > >>>>>> On Fri, 09 Mar 2012, Michael Orlitzky wrote:
> > >
> > >>> What if bash starts to parse the script completely and barfs at
> > >>> 'syntax error' before it starts executing stuff?
> > >
> > >> It doesn't parse the script completely, it executes line-by-line,
> > >> so we can bail out early.
> > >
> > > How can you tell that this behaviour won't be changed in a future
> > > bash version?
> > >
> >
> > Who's to say that in the future my computer won't be made out of
> > delicious ice cream, eliminating the need for EAPIs entirely?
> >
> > Chances are, this would break thousands of scripts, so we hope they
> > wouldn't do it. If it does happen, we either deal with it then, or
> > don't upgrade to that version of bash -- the same as we would do with
> > any other massive breaking change.
>
> Thousands of scripts? So... you're saying that people actually use
> thousands of scripts which have invalid syntax...
Just a note; you need to look into how aliases work. That right there
unfortunately means bash isn't going to pre-parse, not as long as
aliases are supported.
Back to your arguing...
~brian