Re: [gentoo-dev] RFD: EAPI specification in ebuilds

[Brian Harring <ferringb@gmail.com>]

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