[tz] Version in zoneinfo files?
Arthur David Olson
arthurdavidolson at gmail.com
Fri Feb 10 02:25:24 UTC 2017
> Would such a version bump (if needed) require consumers to upgrade?
Storing an extra, otherwise unused time zone abbreviation a la "@(#) TZID
America/New_York" wouldn't require a version bump; then again, it's far
less clean than what could be done with a version bump.
On Thu, Feb 9, 2017 at 8:37 PM, Paul Eggert <eggert at cs.ucla.edu> wrote:
> On 02/09/2017 04:44 PM, Steven R. Loomis wrote:
>> Trying to locate
>> the actual id of a zone file is itself a huge hassle, as John Layt also
>> noted in http://mm.icann.org/pipermail/tz/2015-October/022838.html
> Yes, it is a real management hassle that is not trivial to solve.
> Unfortunately nobody has had the time to come up with a practical solution,
> as far as I know.
> There are political objections to some of the zone names, so putting
>>>> them in the data files might raise a few eyebrows.
>>> Wouldn't the names have been filenames elsewhere on disk, somewhere in
>> the "zoneinfo" directory?
> Not in some installations. Android, I think, does not create filenames
> like "America/New_York". More important, these names are not part of the
> format now, and standardizing them in the format would increase the
> likelihood of causing political irritations. And still more important,
> downstream users are free to add to the list of names, and many do so; this
> lessens the utility of using a "standard" name, as these names are not as
> "standard" as one might want.
>> Would such a version bump (if needed) require consumers to upgrade?
> It seems so -- at least under the proposals I've seen so far, as if
> consumers are running software derived from tzcode, they would need to
> upgrade, as otherwise the code would mishandle some timestamps. I haven't
> looked at non-tzcode-derived libraries but I expect many would be similar.
> We'd rather avoid this, of course.
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