Trace mode (was Re: port upgrade outdated order)

[Arno Hautala]

On Wed, Mar 4, 2015 at 6:52 AM, Chris Jones <jonesc at hep.phy.cam.ac.uk> wrote:
>
> trace mode, which blocks access to files a port should not be using (because
> they have not declared a dependency) is a great tool at providing this
> reproducibility. I do not see any use case for an individual port being able
> to by itself opt in or out of this feature, it should be completely up to
> the user running port to decide, either via a command line switch, or via
> macports.conf. I would not be in favour of ports being able to forcibly opt
> out, as the only reason for doing so in my opinion is because they have bugs
> that should instead be fixed.

I remember discussions about enabling trace mode by default and
concerns that it included a performance hit. I also seem to remember
discussion about this penalty being reduced recently. Is there any
reason that trace mode shouldn't be enabled by default?

-- 
arno  s  hautala    /-|   arno at alum.wpi.edu

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